DMT340 - Humidity and temperature sensor VAISALA - Free user manual and instructions

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USER MANUAL DMT340 VAISALA

PUBLISHED BY Vaisala Oyj Phone (int): +358 9 8949 1 P.0. Box 26 Fax: +358 9 8949 2227 F1-00421 Helsinki Finland Visit our Internet pages at http://www.vaisala.com/ © Vaisala 2009 No part of this manual may be reproduced in any form or by any means, electronic or mechanical (including photocopying), nor may its contents be communicated to a third party without prior written permission of the copyright holder. The contents are subject to change without prior notice. Please observe that this manual does not create any legally binding obligations for Vaisala towards the customer or end user. All legally binding commitments and agreements are included exclusively in the applicable supply contract or Conditions of Sale.

GENERAL INFORMATION. About This Manual . Contents of This Manua Version Information … General Safety Considerations Feedback Product Related Safety Precaution ESD Protection. Recycling Regulatory Compliances . DNV Type Approval. Transmitters with LAN or WLAN Interface Transmitters with WLAN Interface Patent Notice Trademarks License Agreement

PRODUCT OVERVIEW. Introduction to DMT340 Basic Features and Options Structure of the Transmitter Probe Options Who ©

INSTALLATIO Mounting the Housing Standard Mounting without Mounting P late Wall Mounting with Wall Mounting Kit Mounting with DIN Rail Installation Kit. Pole Installation with Installation Kit for Pole or Pipeline Mounting the Rain Shield with Installation Kit. Panel Mounting Frame Wiring …. Cable Bushings Grounding the Cables Transmitter Housing Grounding. Signal and Power Supply Wiring Connections to a 24 VAC Power Supply Probe Mounting … DMT342 Small-size Flanged P robe for Use with Sampling Cell 3

D USSWNN © © © ®OUU U

Using Serial Line. 89 Telnet Settings Web Configuration for LAN and WLAN Terminal Program Settings Opening a Serial/USB connection Opening a Telnet session (LAN/WLAN) List of Serial Commands Formatting Serial Line Message FTIME and FDAT FST …. General Settings … Changing the Quantities and Units Using Display/Keypad Using Serial Line. FORM. UNIT Pressure Compensation Setting Using Display/Keypad…… Using Buttons on the Motherboard. Using Serial Line. XPRES and PR Date and Time... Using Display/Keypad Using Serial Line. User Port Serial Settings. Locking Menu/Keypad by Using Serial Line LOCK. Data Recordin DSEL............... View Recorded Data DIR. PLAY Deleting the Recorded Files UNDELETE Analog Output Settings Changing the Output Mode and Range Analog Output Quantities AMODE/ASEL.. VAISALA _ 5

MAINTENANCE. mn Periodic Maintenanc Cleaning Changing the Probe Filter Calibration and Adjustment Error States Technical Support Return Instruction: Vaisala Service Centers ns 139

CALIBRATION AND ADJUSTMENT menus 141 Calibration … User Calibration and Adjustmen Opening and Closing the Adjustment Mode _ M210704EN-E

Adjustment Information CTEXT and CDATE. Adjusting Dewpoint Tu Two-point Relative Humidity Adjustment using Display/Keypad … Two-point Relative Humidity Adjustment Using Serial Line146 One-point Dewpoint Adjustment Using Display/Keypad.… 146 One-point Dewpoint Adjustment Using Serial Lin 148 Adjusting Temperature. Adjusting Temperature Using Display/Keypad . Adjusting Temperature Using Serial Line Adjusting Analog Outputs Adjusting Analog Outputs using Display/Keypad. Adjusting Analog Outputs using Serial Line ACAL

List of Figures Figure 1 Transmitter Body... Figure 2 Inside the Transmitter. Figure 3 Probe Option: Figure 4 Standard Mounting. Figure 5 Mounting with Wall Mounting K 26 Figure 6 Dimensions of the Plastic Mounting Plate (mm/inch 26 Figure 7 Mounting with Metal Wall Mounting P late …. 27 Figure 8 Dimensions of Metal Mounting P late (mm/inch 27 Figure 9 Mounting with DIN Rail Installation Kit Figure 10 Vertical Pole. Figure 11 Horizontal Pole. Figure 12 Mounting the Rain Shield with Installation Ki Figure 13 Panel Mounting Frame Figure 14 Panel Mounting Dimen: Figure 15 Cable Bushings Figure 16 Grounding the Screen of Electrical Cable. Figure 17 Screw Terminal Block on the Motherboard Figure 18 Connections to 24 VAC Power Supply Figure 19 DMT342 Installation (without the Sampling Figure 20 HMP302SC Optional Sampling Cell Figure 21 DMT344 Probe... Figure 22 Tightening the Nu Figure 23 Cleaning ofthe Tightening Cone. Figure 24 DMT347 Probe with Swagelok Ins Figure 25 DMT347 Probe Installation to Pipeline with Swagelok Installation Kit Figure 26 DMT348 Probe. Figure 27 Leak Screw in the DMT348 Probe Figure 28 Sealing of Fitting Body into Proce: 44 Figure 29 Tightening the Clasp Nut Figure 30 Installing the DMT348 Probe Through a Ball Valve Assembly 47 Figure 31 Probe in Leak Screw Installation. Figure 32 DM240FA with Probe Figure 33 Example of Installing the Probe Directly on the Process Pipe.51 Figure 34 Sampling Cells DMT242SC2 and DMT242SC Figure 35 Installing the Probe in High Temperatures Figure 36 Power Supply Module Figure 37 Galvanic Output Isolation Module Figure 38 Third Analog Output Figure 39 Third analog output selection Figure 40 Relay Module … Figure 41 RS-485-Module Figure 42 4-Wire RS-485 Bus. Figure 43 LAN Interface Module... Figure 44 WLAN Interface Module Figure 45 Data Logger Module. Figure 46 Wiring of the Optional 8-pin Connecto Figure 47 Basic Display... Figure 48 Graphical Display Figure 49 Graphical Display with Data Logger Figure 50 Main Views … Figure 51 Display Alarm Active Figure 52 Display Alarms … Figure 53 Modifying an Alarm Limit VAISALA _

USER'S GUIDE Figure 54 Figure 55 Figure 56 Figure 57 Figure 58 Figure 59 Figure 60 Figure 61 Figure 62 Figure 63 Figure 64 Figure 65 Figure 66 Figure 67 Figure 68 Figure 69 Figure 70 Figure 71 Figure 72 Figure 73 Figure 74 Figure 75 Figure 76 Figure 77 Figure 78 Figure 79 Figure 80 Figure 81 Figure 82 Figure 83 Figure 84 Figure 85 Figure 86 Figure 87 Figure 88 Figure 89 Figure 90 Figure 91 Figure 92 Service Port Connector and User Port Terminal on the Mother Board . Connection Example Between PC Serial Port and User Port..82 Network Interface Menu IP Configuration Menu. Wireless LAN Settings. Entering Network SSID Selecting the Wireless Network Type. Web Configuration Interface for WLAN Opening a Serial Connection. Opening a Telnet Connection Pressure Set Buttons on the Motherboard Following Device Information on the Display Current/Voltage Switches of Output Modules Measurement-Based Relay Output Modes FAULT/ONLINE STATUS Relay Output Mode Relay Availability Following AutoC al on Performing Manual P urge Activating Start-up Purge. Error Indicator and Error Message Starting the Adjustment Performing Purge …. Following the RH Trend on Graphical Display . Ending Adjustment of Point 1. Proceeding to Adjustment of Point 2 Completing Adjustment of Point 2 Following Stabilization Proceeding with T 4 Adjustment Completing T 4 Adjustment. Dewpoint Accuracy Graph. DMT340 Transmitter Body Dimensions . WLAN Antenna Dimensions Sampling Cell Dimensions. DMT342 Probe Dimensions DMT344 Probe Dimensions DMT347 Probe Dimensions DMT348 Standard Probe Dimensions NPT 1/2" Nut Dimensions... DMT348 Optional 400mm P robe Dimension: M210704EN-E

List of Tables VAISALA _ Table 1 Table 2 Table 2 Table 3 Table 4 Table 5 Table 6 Table 7 Table 8 Table 9 Table 10 Table 11 Table 12 Table 13 Table 14 Table 15 Table 16 Table 17 Table 18 Table 19 Table 20 Table 21 Table 22 Table 23 Table 24 Table 25 Table 26 Table 27 Table 28 Table 29 Table 30 Table 31 Manual Revisions Application, Location Classes Quantities and Their Abbreviations . Optional Quantities and Their Abbreviations DMT348 Probe Dimensions Connecting the Twisted Pair Wires to the Screw Terminals. 4-Wire (Switch 3:0n).. 2-Wire (Switch 3:Off Observartion Periods a Wiring of the 8-pin connector Periods for Trend and Max/Min Calculations Graph Information Messages Default Serial Communication Settings for the User Po Communication Settings for the Service Port. IP Settings for the LAN and WLAN Interfaces. Wireless LAN Settings. Measurement Commands. Formatting Commands Data Recording Comman Purge Commands Autocalibration Commands Calibration and Adjustment Commands. Setting and Testing the Analog Outputs Setting and Testing the Relays Other Commands FORM Command Modifiers Multiplication Factors... Selection of Output Modes Filtering Levels Error Messages Indicator Led Function: Options and Accessories

GENERAL INFORMATION About This Manual VAISALA This manual provides information for installing, operating, and maintaining Vaisala DRY CA P° Dewpoint and Temperature Transmitter Series DMT340. Contents of This Manual This manual consists of the following chapters:

Chapter 1, General Information, provides general notes for the manual

Chapter 2, Product Overview, introduces the features, advantages, and

the product nomenclature of the DMT340.

Chapter 3, Installation, provides you with information that is intended

to help you install the product.

Chapter 4, Operation, contains information that is needed to operate

Chapter 5, Maintenance, contains information that is needed in basic

maintenance of the product.

Chapter 6, Calibration and adjustment, provides information and

instructions concerning the calibration and adjustment of the DMT340.

Chapter 7, Technical Data, provides the technical data of the product.

-_ Appendix À, Calculation Formulas, presents the equations used for the calculated output quantities.

USER'S GUIDE Version Information Table 1 Manual Revisions Manual Code Description M210704EN-A April 2005 - First release M210704EN-B November 2006 M210704EN-C June 2007 - Data logger module and USB-RJ 45 cable added as new options. Support for Chinese language. M210704EN-D May 2008 - New options added: LAN Interface, WLAN Interface. Display Alarm feature added. M210704EN-E June 2009 - Added PuTTY terminal application instructions, revised description of the M170 Link software. Removed instructions for HyperTerminal. General Safety Considerations Throughout the manual, important safety considerations are highlighted as follows: WARNING Waming alerts you to a serious hazard. If you do not read and follow instructions very carefully at this point, there is a risk of injury or even death. CAUTION Caution warns you of a potential hazard. If you do not read and follow instructions carefully at this point, the product could be damaged or important data could be lost. NOTE Note highlights important information on using the product. Feedback Vaisala Customer Documentation Team welcomes your comments and suggestions on the quality and usefulness of this publication. If you find errors or have other suggestions for improvement, please indicate the chapter, section, and page number. Y ou can send comments to us by e- mail: manuals@ vaisala.com M210704EN-E

General Information Product Related Safety Precautions The DMT340 Dewpoint and Temperature Transmitter delivered to you has been tested for safety and approved as shipped from the factory. Note the following precautions: WARNING Ground the product, and verify outdoor installation grounding periodically to minimize shock hazard. CAUTION Do not modify the unit. Improper modification can damage the product, lead to malfunction, or make the product noncompliant with applicable legislation. ESD Protection Electrostatic Discharge (ESD) can cause immediate or latent damage to electronic circuits. Vaisala products are adequately protected against ESD for their intended use. However, it is possible to damage the product by delivering electrostatic discharges when touching, removing, or inserting any objects inside the equipment housing. To make sure you are not delivering high static voltages yourself: Handle ESD sensitive components on a properly grounded and protected ESD workbench. When this is not possible, ground yourself to the equipment chassis before touching the boards. Ground yourself with a wrist strap and a resistive connection cord. When neither of the above is possible, touch a conductive part of the equipment chassis with your other hand before touching the boards. -_ Always hold the boards by the edges and avoid touching the component contacts. Recycle all applicable material. Dispose of batteries and the unit according to statutory regulations. Do not dispose of with regular household refuse. VAISALA

USER'S GUIDE Regulatory Compliances DNV Type Approval The Vaisala DRY CAP® Dewpoint and Temperature Transmitter Series DMT340 is found to comply with Det Norske Veritas’ Rules for Classification of Ships, High Speed & Light Craft and Det Norske Veritas’ Offshore standards. Applicable tests carried out according to Standard for Certification No. 2.4, April 2006. Table 2 Application, Location Classes Type DMT340 Temperature B Humidity B Vibration A EMC B Enclosure B/IP65 DINIV

TYPE APPROVED PRODUCT

CERTIFICATE NO.: A-11440

Transmitters with LAN or WLAN Interface This equipment has been tested and found to comply with the limits for a Class B digital device, pursuant to Part 15 of the FCC Rules. These limits are designed to provide reasonable protection against harmful interference in a residential installation. Operation is subject to the following two conditions: (1) this device may not cause interference, and (2) this device must accept any interference, including interference that may cause undesired operation of the device. This equipment generates, uses and can radiate radio frequency energy and, if not installed and used in accordance with the instructions, may cause harmful interference to radio communications. However, there is M210704EN-E

General Information no guarantee that interference will not occur in a particular installation. If this equipment does cause harmful interference to radio or television reception, which can be determined by turning the equipment off and on, the user is encouraged to try to correct the interference by one or more of the following measures: Reorient or relocate the receiving antenna. Increase the separation between the equipment and receiver. Connect the equipment into an outlet on a circuit different from that to which the receiver is connected. Consult the dealer or an experienced radio/TV technician for help. Transmitters with WLAN Interface This device has been designed to operate with a 2 dBi half-wave antenna. Antennas with a gain greater than 2 dB are strictly prohibited for use with this device. The required antenna impedance is 50 ohms. To reduce potential radio interference to other users, the antenna type and its gain should be so chosen that the equivalent isotropically radiated power (e.i.r.p.) is not more than that permitted for successful communication. This Class [B] digital apparatus complies with Canadian ICES-003. Cet appareil numérique de la classe [B] est conforme à la norme NMB- 003 du Canada. Patent Notice The Vaisala DRY CAP® Dewpoint and Temperature Transmitter Series DMT340 is protected by, for example, the following patents and their corresponding national rights: Finnish patents 98861 and 99164, French patents 6650303 and 9504397, German patents 69418174 and 19513274, Japanese patents 3585973 and 2801156, UK patents 0665303 and 2288465, U.S. patent 5607564. Trademarks VAISALA DRY CAP is a registered trademark of Vaisala Oyj. Windows® is a registered trademark of Microsoft Corporation in the United States and/or other countries.

USER'S GUIDE License Agreement Al rights to any software are held by V'aisala or third parties. The customer is allowed to use the software only to the extent that is provided by the applicable supply contract or Software License A greement. Warranty For certain products Vaisala normally gives a limited one-year warranty. Please observe that any such warranty may not be valid in case of damage due to normal wear and tear, exceptional operating conditions, negligent handling or installation, or unauthorized modifications. Please see the applicable supply contract or Conditions of Sale for details of the warranty for each product. M210704EN-E

PRODUCT OVERVIEW This chapter introduces the features, advantages, and the product nomenclature of the Vaisala DRY CA P° Dewpoint and Temperature Transmitter DMT 340 Series. Introduction to DMT340 The DMT340 transmitter measures dewpoint temperature accurately in a measurement range from -60°C to +80 °C (-76 … +176 °F). The AutoCal feature provides excellent long term stability of the measurement. DMT340 incorporates the advanced DRY cAP° technology, which enables reliable and high-performance dewpoint measurement. Apart from the extended dewpoint measurement range the optional modules provide for more flexibility. See Table 3 below for the quantities that DMT340 measures and calculates. See Table 4 below for the optional quantities measured by DMT340. Table 3 Quantities and Their A bbreviations Quantity Abbreviation Metric Unit Non Metric Unit Dewpoint/frost point TDF °C °F temperature (Tux) Mixing ratio (x) X g/kg grlb Parts per million H20 ppm,/ ppMy ppmy/ ppm VAISALA 19

USER'S GUIDE Table 4 Optional Quantities and Their Abbreviations Quantity Abbreviation |Metric Unit | Non Metric Unit Relative humidity RH RH %RH %RH Temperature T T °C °F Dewpoint/frost point in the TDFA °C atm °F atm atmospheric pressure (Ta) Absolute humidity (a) A g/m gré Absolute humidity in standard ANTP g/m gré pressure and temperature (NTP) Wet bulb temperature (T,) TW °C F Water vapor pressure (P,) PW hPa Ib/in Water vapor saturation pressure PWS hPa Ib/in (Pus) Enthalpy (h) H k] /kg Btu/lb Difference of T and Tar (AT) DT °C F Dewpoint temperature (Ta }* TD E F Dewpoint in the atmospheric TDA °C atm °F atm pressure (Ta }* *use these parameters only if you need dewpoint over water below 0 2C/322F and not over ice (industry standard) Basic Features and Options DMT340 has the following basic features and options: -__Dewpoint measurement with AutoCal and sensor purge features -_ Sensor warming in high humidities -__ Two analog outputs and a serial interface -_ Several probes for different applications -_ User friendly multilingual display option -_ Calculated output quantities available. -_ Different probe mounting kits, sensor protection options and probe cable lengts 2 m, 5 mor 10 m. -_ USB connectivity for service connections via the optional USB-RJ45 cable -_ Optional modules: -_ galvanic isolation for outputs -_ AC mains power supply -_ RS-485 serial line - LAN and WLAN interfaces -__ data logger module with real time clock -_ additional analog output module - alarm relay module 20 M210704EN-E

small-size for high probe with for pressurized flanged probe pressure Swagelok pipelines for use with applications connector sampling cell 0503-019 Figure 3 Probe Options Probe cable lengths are 2 m, 5 m and 10 m. VAISALA _23

INSTALLATION Mounting the Housing Installation The housing can be mounted either without the mounting plate or with optional mounting plates. Standard Mounting without Mounting Plate Mount the housing without the mounting plate by fastening the transmitter to the wall with 4 screws, for example M6 (not provided). 169 (6.65)

USER'S GUIDE Wall Mounting with Wall Mounting Kit When mounting with wall mounting kit the mounting plate (V aisala order code 214829) can be installed directly on wall or onto a standard wall box (also US junction box). When wiring through back wall, remove the plastic plug from the wiring hole in the transmitter before mounting.

0503-04 Figure 5 Mounting with Wall Mounting Kit The numbers refer to Figure 5 above: 1 = Plastic mounting plate 2 = Mountthe plate to wall with 4 screws M6 (not provided) 3 = Thearchedsideup 4 = Fasten DMT340 to the mounting plate with 4 fixing screws M3 (provided) 5 = Holes for wall/junction box mounting 183 (7.20) 133 (5.24) DAT ES F & SO Es R|S& &! 2 a $ 5|e À a __|-s=095(037 LE dé Deie | TT 59 (232)

e à 0804-065 Figure 6 Dimensions of the Plastic Mounting Plate (mm/inch) Metal mounting plate is included in rain shield with installation kit and installation kit for pole or pipeline. M210704EN-E

Chapter 3 Installation

0503-041 Figure 7 Mounting with Metal Wall Mounting Plate Numbers refer to Figure 7: 1 = Mountthe plate to wall with 4 screws M8 (not provided) 2 = Fasten DMT340 to the mounting plate with 4 fixing screws M6 (provided) 3 = Notethe position of the arrow when mounting. This side must be up when mounting. 237 (933) 200 (787) M0 (433) 85635) [mas | 15060) 179 (705) m0 (433) 0509-151 Figure 8 Dimensions of Metal Mounting Plate (mm/inch) VAISALA 27

USER'S GUIDE Mounting with DIN Rail Installation Kit DIN rail installation kit includes a wall mounting kit, 2 clip-fasteners and 2 screws M4 x 10 DIN 7985 (V aisala order code 215094).

1. Attach two spring holders to the plastic mounting plate by using the

screws provided in the installation kit.

2. Fasten DMT340 to the plastic mounting plate with 4 screws

provided for that purpose.

3. Press the transmitter onto the DIN rail so that the clip-fasteners

snap into the rail. 0503-02 Figure 9 Mounting with DIN Rail Installation Kit M210704EN-E

VAISALA Installation Pole Installation with Installation Kit for Pole or Pipeline Installation kit for pole or pipeline (V aisala order code: 215108) includes the metal mounting plate and 4 mounting nuts for pole mounting. When mounting, the arrow in the metal mounting plate must point upwards, see Figure 7 on page 27. 0503-06 Figure 10 Vertical Pole Numbers refer to Figure 10 above. 1 = Fixing brackets (2 pcs) M8 (provided) for 30 . 102 mm poles. 2 = Mounting nuts M8 (4 pcs) 0503-07 Figure 11 Horizontal Pole Number refers to Figure 11 above. 1 = Mounting nuts M8 (4 pcs)

USER'S GUIDE Mounting the Rain Shield with Installation Kit Vaisala order code: 215109 0503-08 Figure 12 Mounting the Rain Shield with Installation Kit Numbers refer to Figure 12 above. 1 = Fastenthe rain shield with installation kit to the metal mounting plate with 2 (M6) mounting screws (provided). 2 = Fastenthe mounting plate with rain shield with installation kit to the wall or to the pole (see pole installation). 3 = Fasten DMT340 to the mounting plate with 4 fixing screws (provided). Panel Mounting Frame To enable a neat and dirt free embedded installation of the transmitter, a panel mounting frame is available as an option (Vaisala order code: 216038). The frame is a thin, flexible plastic frame for the transmitter, with adhesive tape on one side. The frame is used to hide any rough edges of the installation hole, and provide a more finished look. Note that the panel mounting frame is not intended to bear the weight of the transmitter, and does not include any mounting supports. Use the panel mounting frame as follows:

1. Use the frame as a template to mark the required size for the

installation hole in the panel.

2. Cutthe hole in the panel.

3. Mountthe transmitter through the panel with suitable supports.

Chapter 3 Installation

4. Remove the paper protecting the adhesive tape on the frame, and

attach the frame around the transmitter. Refer to Figure 13 below. 0704-02 Figure 13 Panel Mounting Frame The following numbers refer to Figure 13 above: 1 = Panel (notincluded) 2 = Panel mounting frame 200 (7.87) a o 8 e LE L an [a] = 2 154 (6.06) 0804-083 Figure 14 Panel Mounting Dimensions (mm/inch) VAISALA 31

USER'S GUIDE Wiring Cable Bushings A single electrical cable with a screen and three to ten wires is recommended for power and analog/serial connections. The cable diameter should be 8.11 mm. The number of cable bushings depends on the transmitter options. See the following recommendations for the cable bushings: 0503-010 Figure 15 Cable Bushings Numbers refer to Figure 15 above:

Cable for signal/powering 98 … 11 mm Cable for optional module 98 … 11 mm Cable for optional power module @8 … 11 mm NOTE When there is high electric noise level (for example near powerful electric motor) in the operating environment it is recommended to use shielded cable or take care that the signal cables are separated from other cables. M210704EN-E

VAISALA Installation Grounding the Cables Ground the screen of the electrical cable properly to achieve the best possible EMC performance. Fig. 1 Fig. 3 0504-049 Figure 16 Grounding the Screen of Electrical Cable

Cut back outer sheath to desired length. Cut back screen braiding or screen foil to dimension X (see figure 3). Push the domed cap nut (item 1) and the seal insert with contact socket of the gland (item 2+3) onto the cable as shown in the diagram Bend over the screen braiding or screen foil by about 902 (item 4). Push the seal insert with the contact socket of the gland (item 2+3) up to the screen braïding or screen foil. Mount the lower part (item 5) on the housing

USER'S GUIDE 7... Push the seal with the contact socket of the gland and (item 2+3) flush into the lower part (item 5).

8. Fasten the domed cap nut (item 1) onto the lower part (item 5).

Transmitter Housing Grounding In case you need to ground the transmitter housing, the grounding connector is found inside the housing (see Figure 1 on page 21) Note anyhow that the probe is connected to the same potential as the housing. Make sure that different groundings are made to the same potential. Otherwise harmful ground currents may be generated. If itis needed to have galvanic isolation of the power supply line from the output signals, DMT 340 can be ordered with optional output isolation module.This module prevents harmful grounding loops. Signal and Power Supply Wiring When connecting transmitter with 8-pin connector, see section 8-pin Connector on page 69.

DDDDEVVOO 0605-028 Figure 17 Screw Terminal Block on the Motherboard Numbers refer to Figure 17 on page 34: 1 = Power supply terminals 10 … 35 VDC, 24 VAC 2 = User port (RS-232 terminals) 3 = Analog signal terminals M210704EN-E

Installation WARNING Make sure that you connect only de-energized wires. . Open the transmitter cover by taking out the four cover screws.

2. Insert the power supply wires and signal wires through the cable

bushing in the bottom of the transmitter; see the grounding instructions in the previous sections.

3. Connect the analog output cables to terminals: Ch1 +, Ch1-, Ch2+,

Ch2-. Connect the RS-232 user port cables to terminals RxD, GND and TxD, more about the RS-232 connection in Section Serial Line Communication on page 80.

4. When wiring the optional modules, see the corresponding section

for instructions: RS-422/485 Interface on page 62 -_ Alarm Relays on page 60 Third Analog Output on page 59 LAN Interface on page 64 WLAN Interface on page 65

5. Connectthe power supply wires to the connectors: POWER

10...35V + 24V- (+) and (-) terminals. (If using AC voltage, connect always phase to power supply (+) and 0 to power supply O). When wiring the power supply module, see section Power Supply Module on page 54.

6. Turn on the power. The indicator led on the cover lit continuously

during normal operation. 7... Close the cover and replace the cover screws. The transmitter is ready for use. Connections to a 24 VAC Power Supply Separate floating supply for each transmitter is recommended (see the upper part of Figure 18 on page 36). If you have to connect several transmitters or other instruments to one AC supply, the phase (-) must always be connected to the (+) connector of each transmitter (see the lower part of Figure 18). CAUTION

24 VAC POWER SUPPLY USE

To prevent fire and/or damage, if either 24 VAC wire is grounded or connected to a "-","0", or "GND" terminal of any other device, you must connect the same wire on the "-" terminal also on this instrument. VAISALA

2 24vAc supply voltage transmitter Common loop formed - NOT recommendedi transmitter v | æ œ æ 24 VAC supiy voltage shared Je e e commor line ST æ æ supply voltage transmitter o703-o41 Figure 18 Connections to 24 VAC Power Supply Probe Mounting NOTE When measuring temperature dependent quantities make sure that the temperature at the measurement point is equal to that of the process, otherwise the moisture reading may be incorrect. 36 M210704EN-E

VAISALA Installation DMT342 Small-size Flanged Probe for Use with Sampling Cell The DMT342 probe is a small pressure-tight probe equipped with installation flange. When sampling in pressurized processes, the sampling cell HMP302SC is available as an optional accessory. It may be necessary to use the sampling cell if the process (for example a pipe) is too small for the DMT342 probe. Furthermore, if the process is very hot (>80 °C) or particularly dirty, the probe is installed in a sampling cell behind a cooling coil and/or filter. In this case, the ambient temperature must be at least 10 °C warmer than the process dewpoint in order to avoid condensation in the sample tubing. F7 Screws, hexagon socked head (provided) Threaded sieeve DMT342 Probe = {not provided) Ê O-Ring (provided) min.2-3 mm (0.1") Process pipe or chamber 95 (38) Threaded sleeve 0503-018 Figure 19 DMT342 Installation (without the Sampling Cell)

©) ol … | G) © 6) 0503-017 Figure 20 HMP302SC Optional Sampling Cell Numbers refer to Figure 20 above. Gasin Probe Gas out Probe Sampling cell Clamp (not needed if sampling cell is supported on the piping) O 01 © D CAUTION In pressurized processes it is essential to tighten the supporting nuts and screws very carefully to prevent loosening of the probe by the action of pressure. NOTE When the DMT340 is installed in a process with a pressure differing from the selected operating pressure at the time of ordering, please enter the pressure value of the process into the transmitter memory, see section Pressure Compensation Setting on page 101. Use the serial line commands XPRES and PRES or the display/keypad. The pressure set buttons on the motherboard inside the transmitter can also be used to set pressure compensation. M210704EN-E

Chapter 3 Installation

DMT344 For High-pressure Applications The DMT341 probe is for the dewpoint measurements in pressurized rooms and industrial processes. The probe is provided with a nut, a fitting screw and a sealing washer. Keep the fitting screw and the nut in place on the body of the probe during handling to prevent damage to the highly polished surface of the probe. Follow the instructions below to achieve a leak-tight assembly: Remove the fitting screw from the nut and the probe.

2. Fasten the fitting screw to the chamber wall with a sealing washer.

Tighten the fitting screw into the threaded sleeve with a torque spanner. The tightening torque is 150 + 10 Nm (110 +7 ft-Ibs).

3. Insert the body of the probe into the fitting screw and install the nut

manually to the fitting screw so thatthe connection feels tight.

4. Mark both the fitting screw and the nut hex.

0506-029 Figure21 DMT344 Probe Numbers refer to Figure 21 above: Tightening cone Nut Fitting screw, M22x1.5 or NPT 1/2" Sealing washer Probe; @12 mm. noue WU ONU VAISALA 39

5. Tighten the nut a further 30° (1/12) turn or if you have a torque

spanner tighten it with a torque of 80 + 10 Nm (60 +7 ft-Ibs). 0503-034 Figure22 Tighteningthe Nut NOTE When re-tightening the nut after detachment the nut must be tightened without increased effort.

6. Clean and grease the tightening cone of the fitting screw after every

tenth detachment. Change the sealing washer every time the fitting screw is detached. Use high-vacuum grease (for example Dow Corning) or a similar grease. 0503-03 Figure 23 Cleaning of the Tightening Cone Numbers refer to Figure 23 above: 1 = Fitting screw 2 = Sealing washer 3 = Tightening cone 4 = Clean cotton stick CAUTION In pressurized processes it is essential to tighten the supporting nuts and screws very carefully to prevent loosening of the probe by the action of pressure. 40 M210704EN-E

Installation NOTE When the DMT340 is installed in a process with a pressure differing from the selected operating pressure at the time of ordering, please enter the pressure value of the process into the transmitter memory, see section Pressure Compensation Setting on page 101. Use the serial line commands X PRES and PRES or the display/keypad. The pressure set buttons on the motherboard inside the transmitter can also be used to set pressure compensation. VAISALA DMT347 Small Pressure-tight Probe The DMT347 is ideal for tight spaces with threaded connection. The small probe is installed using the threaded fitting bodies, see below. Pressure-Tight Swagelok Installation Kits for DMT347 Swagelok installation kit for the dewpoint probe includes Swagelok connector with IS01/2" thread (V aisala order code: SWG121S012), 1S03/8" thread (V aisala order code: SWG121S038) or NPT1/2" thread (Vaisala order code: SWG12NPT12). ai — 0503-042 Figure 24 DMT347 Probe with Swagelok Installation Kit

USER'S GUIDE 84mm « 42 mm NZLEN P = max 10 ba NN KKS T=max 180% | | 0503-021 Figure 25 DMT347 Probe Installation to Pipeline with Swagelok Installation Kit Numbers refer to Figure 25 above: Probe Duct connector IS01/2", IS03/8" or NPT1/2" thread Swagelok connector

2. Probe position. Before the final tightening check that the upper

edge of the connector nut is in line with the upper edge of the probe. Otherwise the sealing may not be gas tight.

a. Tum the connector nut finger tight and draw a vertical mark on the nut and the fitting body. b. Be sure that the probe position follows step 2. c. Tighten the connector nut with a wrench 1 and 1/4 turns (3602 +902) with the help of marks you drew. The connector has now a gas tight connection to the probe. Excess tightening can damage the probe. d. Connector can be disconnected and re-installed. In re- installation first turn the connector nut finger tight and then with wrench 1/4 turn (902). Use teflon tape or thread sealant to seal the connection between the Swagelok connector and the process, see Figure 28 on page 44. M210704EN-E

Chapter 3 Installation

NOTE If the Swagelok connector is tightened at an incorrect position, it is possible that the probe will not fit the calibration station. Be sure that the probe position follows step 2 above. DMT348 For Pressurized Pipelines Due to the sliding fit the DMT348 is easy to install into and remove from the pressurized process. The probe is especially suitable for the measurements in pipelines. See section Ball Valve Installation Kit for DMT348 on page 46. 0503-020 Figure 26 DMT348 Probe Numbers refer to Figure 26 above. 1 = Clasp nut, 27 mm hex nut 2 = Fitting body, 24 mm hex head 3 = Leakscrew The following three fitting body options are available: Fitting Body Set ISO1/2 with leak screw Fitting Body IS01/2 solid structure (without leak screw) Fitting Body NPT1/2 solid structure (without leak screw) VAISALA 43

USER'S GUIDE 0503-05 Figure 27 Leak Screw in the DMT348 Probe Number refers to Figure 27 above: 1 = Non-leaking screw (A) (factory setting) or leak screw (B) (included in the package) Table 5 DMT348 Probe Dimensions Probe type Probe Dimension Adjustment Range Standard 178 mm 120 mm D ptional 400 mm 340 mm fitting body hex = 24mm tapered thread si | = N D NN IN N

8. PTFE tape (t=-60...+210 °C) NOTE: the tape does not lock

the parts together. Therefore, use two fork spanners (hex 24 and 27 mm) for tightening and opening the clasp nut of the probe 0506-031 Figure 28 Sealing of Fitting Body into Process M210704EN-E

Tightening the Clasp Nut

1. Adjust the probe to a suitable depth according to the type of

2. Tighten the clasp nut first manually.

Mark the fitting screw and the clasp nut.

4. Tighten the nut a further 50 … 60 (ca. 1/6 tu) with a wrench.

you have suitable torque spanner, tighten the nut to max 45 +5 Nm (33 +4ft-lbs). 0505-276 Figure29 Tightening the Clasp Nut The following numbers refer to Figure 29 above: 1 = Probe 2 = Claspnut 3 = Fitting screw 4 = Pen NOTE Take care not to over tighten the clasp nut to avoid difficulties when opening it. CAUTION Take care not to damage the probe body. A damaged body makes the probe less tight and may prevent it from going through the clasp nut. VAISALA

USER'S GUIDE CAUTION In pressurized processes it is essential to tighten the supporting nuts and screws very carefully to prevent loosening of the probe by the action of pressure. NOTE When the DMT340 is installed in a process with a pressure differing from the selected operating pressure at the time of ordering, please enter the pressure value of the process into the transmitter memory, see section Pressure Compensation Setting on page 101. Use the serial line commands X PRES and PRES or the display/keypad. The pressure set buttons on the motherboard inside the transmitter can also be used to set pressure compensation. Ball Valve Installation Kit for DMT348 The ball valve installation kit (Vaisala order code: BALLVALVE-1) is preferred when connecting the probe to a pressurized process or pipeline. Use the ball valve set or a 1/2" ball valve assembly with a ball hole of 914 mm or more. If you install the probe (912 mm) in a process pipe, please note that the nominal size of the pipe must be at least 1 inch (2.54 cm). Use the manual press handle to press the probe into the pressurized (< 10 bar) process or pipeline. M210704EN-E

Installation 0507-043 Figure 30 Installing the DMT348 Probe Through a Ball Valve Assembly The following numbers refer to Figure 30 above: Manual press tool Handle of the ball valve Probe Process chamber or pipeline Groove on the probe indicates the upper adjustment limit Filter Ball of the ball valve Fitting screw © 1 O U1 BR W D NOTE The probe can be installed in the process through the ball valve assembly provided that the process pressure is less than 10 bars. This way, the process does not have to be shut down when installing or removing the probe. However, if the process is shut down before removing the probe, the process pressure can be max. 20 bars. NOTE When measuring temperature dependent quantities make sure that the temperature at the measurement point is equal to that of the process, otherwise the moisture reading may be incorrect. VAISALA

USER'S GUIDE Follow the steps below to install the DMT 348 probe through a ball valve assembly. After the installation, the probe should be sitting in the process chamber or pipeline as shown in Figure 30 on page 47.

Shut down the process if the process pressure is more than 10 bars. If the pressure is lower there is no need to shut down the process. Close the ball valve. Seal the threads on the fitting body; refer to Figure 28 on page 44. Attach the fitting body to the ball valve and tighten it. Slide the clasp nut of the probe toward the filter, as far as it will go. Insert the probe to the fitting body, and manually tighten the clasp nut to the fitting body. Open the ball valve. Push the probe through the ball valve assembly into the process. If the pressure is high, use the pressing handle that is provided with the probe. If you push the probe hard without using the handle, you may damage the cable. Note that the probe must be pushed so deep that the filter is completely inside the process flow. Mark the fitting screw and the clasp nut. Tighten the clasp nut with a fork spanner a further 50 … 602 (ca. 1/6 tum). If you have a suitable torque spanner, tighten the nut to max 45 +5 Nm (33 +4 ft-Ibs). Refer to Figure 29 on page 45. NOTE Take care not to tighten the clasp nut more than 60° to avoid difficulties when opening it. If you wish to remove the probe from the process, note that you have to pull the probe out far enough. Y ou cannot close the valve if the groove on the probe body is not visible. M210704EN-E

VAISALA Installation Leak Screw Installation When the probe cannot be installed directly in the pressurized process or process pipe, a leak screw installation can be used. In this installation method, you must install the DMT 348 probe using a fitting body with leak screw, see Figure 27 on page 44. A small sample flow from the process goes through the probe and via the leak screw out to atmospheric pressure enabling a fast response time although the probe is not installed in the process.

0503-036 Figure 31 Probe in Leak Screw Installation Numbers refer to Figure 31 above: 1 = Probe 2 = Filter 3 = Ballof the ball valve 4 = Leakscrew

USER'S GUIDE Mounting the Probe Directly to the Process Select a point, which gives a true picture of the process. The transmitter can be installed directly in the process wall, especially if the pressure of the process is 1 bar (atmospheric processes). It may be necessary to use the sampling cell if the process (for example a pipe) is too small for the DMT348 probe. Furthermore, if the process is very hot (>80 °C) or particularly dirty, the probe is installed in a sampling cell behind a cooling coil and/or filter. In this case, the ambient temperature must be at least 10 °C warmer than the process dewpoint in order to avoid condensation in the sample tubing.

es | LE [TT mp) on 1 Ï 0503-016 Figure 32 DM?2490FA with Probe Numbers refer to Figure 32 above: 1 = measured gas 2 = probe 3 = DM240FA flange (thread G1/2" ISO) 4 = useR1/2" ISO fitting body for DMT348 probe with DM240FA flange recommended additional hole (plugged) for Td field check reference measurement probe (for example, Vaisala DM70)

If the probe is installed in process pipes where the water is likely to collect at the measurement point, take care to install the probe so that it will not be immersed in water. When the probe is installed directly on the process wall or pipe, note that a closing valve may be needed on both sides of the installed probe so that the probe can be removed from the process for calibration or maintenance. M210704EN-E

VAISALA Installation If the probe is installed in a pressurized chamber, always make sure that the pressure of the chamber is equalized with the ambient pressure prior to removing the probe. When the probe is pulled out for maintenance, cap the hole with a capped nut. This way, the process can be running although the probe is not in place. For ISO threaded connections, a plug (Vaisala order code 218773) is available. welded sleeve (G172) . process pipe DIR Ù … probe (screw A)

AL TA. Non leaking screw closing valve (ball vaive) Figure 33 Pipe 0706-001 Example of Installing the Probe Directly on the Process

USER'S GUIDE Sampling Cell for DMT348 It may be necessary to use a sampling cell if the process (for example a pipe) is too small for the DMT348 probe. Furthermore, if the process is very hot (>80 °C) or particularly dirty, the probe is installed in a sampling cell behind a cooling coil and/or filter. In this case, the ambient temperature must be at least 10 °C warmer than the process dewpoint in order to avoid condensation in the sample tubing. Sampling Cell with Swagelok Connectors (V aisala order code: DMT242SC2) and Sampling Cell with Female Connectors (V aisala order code: DMT242SC) are available as an option.

0506-026 Figure 34 Sampling Cells DMT242SC2 and DMT242SC Numbers refer to Figure 34 above: 1 = Male pipe weld connector Swagelok 1/4" 2 = G1/2" 3 = Gi1/4" 4 = G3/8" M210704EN-E

VAISALA Installation An overpressure in the process is necessary to create a flow through the sampling cell. Note that the pressure of the sampling cell must not differ from that of the process because dewpoint temperature changes with pressure. In dirty processes, it may be necessary to use a filter between the cooling coil and the sampling cell. One more simple way of using the sampling cell with user provided accessories is shown in the figure below.The flow through the sampling cell is controlled with the needle valve and the pressure is kept equal to that of the process. closing valve process gas Figure 35 sample cell pressure gauge closing valve 0503-02 Installing the Probe in High Temperatures

USER'S GUIDE Optional Modules Power Supply Module The mains power connection may be connected to the power supply module only by an authorized electrician. A readily accessible disconnect device shall be incorporated in the fixed wiring. 0506-027 Figure 36 Power Supply Module Numbers refer to Figure 36 above: 1 = ConnectAC mains voltage wires to these terminals 2 = Groundingterminal 3 = Incasethe module is not installed in the factory: Connect wires from these terminals to the POWER 10. 35V 24V terminals of the mother board. 4 = + 5 = - 54 M210704EN-E

Installation Installation Disconnect the power.

2. Remove the protective plug from the cable gland and thread the

wires. In case the power supply module is installed in the factory, continue with the step 5.

3. To attach the module, open the transmitter cover and fasten the

power module to the bottom of the housing with four screws. See the position on page 20.

4. Connect the wires from the terminals of the power supply module

marked with + and - to the terminals POWER 10. 35 V 24V on the motherboard of the transmitter.

5. Connect the AC mains voltage wires to the power supply module

terminals marked with N and L.

6. Attach the grounding wire to the grounding terminal on the right-

hand side of the transmitter.

7. Connect the power. The LED on the cover of the transmitter is lit

Installation 0503-030 Figure38 Third Analog Output Numbers refer to Figure 38 above 1 = Flatcable pins 2 = Screw terminals for signal line

Dip switches to select the output mode and range Installation and Wiring

Disconnect the power. In case the analog output module is installed in the factory, continue with the step 4. To attach the module, open the transmitter cover and fasten the analog output module to the position for MODULE 2 with four screws. Refer to Figure 2 on page 22. Connect the flat cable between the analog output module and the motherboard's connector for MODULE 2. Take out the protective plug from the cable gland and thread the wires. Connect the wires to the screw terminals marked with Ch+ and Ch-. Select the current/voltage output by setting ON either of the switches 1 or 2. Select the range by setting ON one of the switches 3 … 7. NOTE Only one of the switches 1 and 2 can be ON at a time. Only one of the switches 3 … 7 can be ON at a time. VAISALA

• USER'S GUIDE OFF | ON _ | Selection Current output selection, ON—Current output selected Voltage output selection, ON=Voltage output selected 0 p. 20
• mA selection, ON= 0 p. 20
• mA selected 4 p. 20
• mA selection, ON= 4 mA selected p. 20

0.1 V selection, ON-0...1 V selected

• V selection, ON—0 p. 5
• V selected 0 p. 10
• V selection, ON= 0 V selected. For service use only, keep always in OFF position. Channel 3 8i2/9/S/vielzl|r 0508-029 Figure 39 Third analog output selection Connect the power. Select the quantity and scale the channel via the serial line or display/keypad, see section Analog Output Quantities on page 116. For testing the analog output, see section Analog Output Tests on page 118. For fault indication setting, see section Analog Output Fault Indication Setting on page 119. Alarm Relays DMT340 can be equipped with one or two configurable relay modules. Each module contains two configurable relays. See the contact ratings in section Technical Specifications of Optional Modules on page 156. Installation and Wiring p. 10

Disconnect the power. In case the relay-module is installed in the factory, continue with the step 5. To attach the module, open the transmitter cover and fasten the relay module to the bottom of the housing with four screws. See the position in Figure 2 on page 22. When the mains power is in use attach the grounding wire to the grounding terminal. Connect the flat cable between the relay module and the motherboard's pins MODULE 2 or MODULE 1. Take out the protective plug from the cable gland and thread the relay wires. Connect the wires to the screw terminals: NO, C, NC. CAUTION Forinstallations in the USA: If your transmitter has both the relay module and a LAN or WLAN module, the maximum voltage you are allowed to connect to the relay module is 50 V. M210704EN-E

Installation Selecting the Activation State of the Relay The middlemost C terminal and either one of the terminals NO/NC shall be connected. The polarity can be freely selected. NO Normally open C Common relay NC Normally closed Relay NOT activated: C and NC outputs are closed, NO is open Relay IS activated: C and NO outputs are closed, NC is open. Connect the power and close the cover. For instructions on how to operate the relay (for example, select quantity for the relay output and set the relay setpoints) see section Operation of Relays on page 120. (® 8 [7 er Co Nc 0503-037 Figure 40 Relay Module Numbers refer to Figure 40 above: 1 = Indication led forthe relay 1 or3 2 = Relay test buttons 3 = Flat cable pins 4 = Indication led for relay 2 or4 WARNING The relay module may contain dangerous voltages even if the transmitter power has been disconnected. Before working on the relay module you must switch off both the transmitter and the voltage connected to the relay terminals. WARNING Do not connect the mains power to relay unit without grounding the transmitter. VAISALA

: B E #- É 1S8 : : ÿs nc | Rxe =: G] : eu nc [ra |z * GE] = 148 [onmearameo | à +-O) LISE s |ws Fo 8 A TA in 8 0503-029 Figure 41 RS-485-Module Numbers refer to Figure 41 above: 1 = Flatcablepins 2 = Selection switches 3 = Screw terminals for wiring NOTE The markings on the module and in this manual are according to the line driver manufacturers’ application notes, where A is posive against B when measured with a voltmeter. When connecting the module, be prepared to swap the À and B wires if you have a communication problem. Installation and Wiring

1. Disconnect the power. In case the RS-485-module is installed in

the factory, continue with the item 4.

2. To attach the module, open the transmitter cover and fasten the RS-

485 module to the bottom of the housing with four screws.

3. Connect the flat cable between the RS-485 module and the

motherboard's pins MODULE1 (Communications). Pull the network wirings through the cable gland.

5. Connectthe twisted pair wires (1 or 2 pairs) to the screw terminals

as presented in Table 6: 62 M210704EN-E

Installation Table 6 Connecting the Twisted Pair Wires to the Screw Terminals Data line Data line Screw terminal |(2-wire RS-485) (4-wire RS-485/422) {not connected) RxB {not connected) RXA Data pair shield Data pair shield B TxB A TxA ul#[wlnle If you use RS-485 (or RS-422) to connect just one DMT340 to a master computer,enable the internal termination of DMT 340 by switching switches 1 and 2 ON. Make sure that the master's end of the line is also terminated (by using master's internal termination or with a separate terminator). If you are connecting many transmitters to the same RS-485 bus, make sure that switches 1 and 2 are OFF and terminate the bus with separate terminators at both ends. This allows removing any transmitter without blocking the bus operation. NOTE If you use the internal termination of the transmitter at the end of the RS-485 bus (instead of using separate terminators) removing that transmitter will block the bus operation. VAISALA

Use the bus type (4-wire/2-wire) to select the selection switch 3. In 4-wire mode RS-485 master sends data to the DMT 340 through terminals RxA and RxB and receives data from DMT340 through terminals TxA and TxB. TERWRATION | TERMIRATION

8. When operating in communication mode RS-422, set both switches

3 and 4 to ON position (4-wire wiring is required for RS-422 mode).

9. Connect the power and close the cover.

LAN Interface The optional LAN interface enables an Ethernet connection to the transmitter. The user can establish a virtual terminal session using a telnet client program such as PuTTY. When the LAN Interface is in use, serial communication using the User Port is disabled. The LAN interface module must be installed at the factory (when ordering the transmitter), or by a Vaisala Service Center. Once installed, the module is automatically used by the transmitter. The physical connection to the network is made to the RJ45 connector on the LAN interface module, using a standard twisted pair Ethemet cable (10/100Base-T). Transmitters with the optional LAN interface are delivered pre-installed with a suitable cable and cable gland. 64 M210704EN-E

VAISALA Installation The LAN interface can use both static and dynamic network settings. If the interface is configured to use dynamic settings, the network where the LAN interface is connected must have a DHCP server that provides the settings. The network configuration can be done using the optional display and keypad, or by using the service port. For instructions, see section LAN Communication on page 84. The LAN interface also provides a web configuration interface, which you can access by entering the IP address of the LAN interface in the address field of a web browser. For instructions on how to verify the current settings and status of the LAN interface, see section Device Information on page 107. 0709-03 Figure 43 LAN Interface Module The following numbers refer to Figure 43 above: 1 Flat cable connector 2 RJ45 connector with indicator LEDs for link and activity WLAN Interface The optional WLAN interface enables a wireless Ethernet connection (IEEE 802.11b) to the transmitter. The user can establish a virtual terminal session using a telnet client program such as PuTTY. The interface supports Wired Equivalent Privacy (WEP) and Wi-Fi Protected Access (WPA). For WEP, 64 and 128 bit encryption is supported, with open system or shared key authentication. WPA is used in the Pre-Shared Key (PSK) mode, with either TKIP or CCMP protocol. When the WLAN Interface is in use, serial communication using the User Port is disabled. Similarly to the LAN Interface, the WLAN interface can use both static and dynamic network settings. If the interface is configured to use

USER'S GUIDE dynamic settings, the network where the WLAN interface is connected must have a DHCP server that provides the settings. The WLAN interface also provides a web configuration interface, which you can access by entering the IP address of the WLAN interface in the address field of a web browser. 0802-103 Figure 44 WLAN Interface Module The following numbers refer to Figure 44 above:

Flat cable connector Connector for antenna cable (connected to transmitter cover) Attaching the WLAN Antenna The LAN interface module must be installed at the factory (when ordering the transmitter), or by a Vaisala Service Center. Before taking the transmitter into use, the user must attach the antenna of the WLAN interface into the RP-SMA connector on the transmitter cover. The location of the antenna is shown in Figure 85 on page 161. Data Logger Module The optional data logger module extends the data storage for the measurement data. When the data logger is present, this storage is automatically used by the transmitter. The stored data can be browsed using the optional display module, and accessed through the serial connections. See sections Graphic History on page 72 and Data Recording on page 111. The data logger module contains non-volatile flash memory providing 4 years 5 months of storage for 3 parameters at a 10 second sampling interval. When the memory is full, the data recording will not stop. Instead, the oldest data is overwritten. For each parameter and M210704EN-E

Chapter 3 2 Installation

observation period, the module stores the minimum and maximum values during the interval, as well a data trend value that is averaged from samples taken during the interval (see Table 9 on page 67). Table 9 Observartion Periods and Resolution Observation Period Period for Trend/Max/Min Calculations (Resolution) 3 hours 90 seconds 1 day 12 minutes 10 days 2 hours 2 months 12 hours 1 year 3 days 4 years 12 days The quantities that are logged are the same that have been selected for measurement using the display/keypad or the serial line. When taking the transmitter into use, verify that the desired quantities are selected. If you change the quantities later, the transmitter will start logging the new quantities, and stop logging the quantities that are no longer selected. Changing the quantities does not delete any measurement data that is already in memory. The data logger module has a real time clock with a battery back-up. The clock has been set to the Coordinated Universal Time (UTC) at the factory, and its time cannot be set by the user. The data that is stored in the logger's memory is timestamped using the logger's clock. When date and time are set on the transmitter, they are stored to the transmitter's memory as an offset from the time on the logger's clock. When browsing the stored data, the time offset is applied to the timestamps shown in the graphical history, and data outputted from the serial port. The timestamps in the data logger's memory remain as they were originally stored. Y ou can compensate for the clock drift (less than +2 min/year) by setting the time on the transmitter. This updates the time offset used on the display and the serial port. Y ou can set the time by using the keypad/display or the serial commands. VAISALA 67

USER'S GUIDE CELTETTEEN 0706-068 Figure 45 Data Logger Module The following numbers refer to Figure 45 above: 1 Flat cable pins 2 Battery After a reset or a power up, it will usually take at least 10 seconds before the data logger module is initialized. The real time clock and the data logging and reading functions are not available before the initialization is complete. The indicator LED on the module will blink green during normal operation. If the LED is lit in red color, there is a problem with the module. The transmitter will also indicate the problem by activating the "A dd-on module connection failure" error. If the module is not operating correctly, the transmitter must be sent to V aisala for maintenance. The data logger module must be installed at the factory (when ordering the transmitter), or by a V'aisala Service Center. Once installed, the module is automatically used by the transmitter. When the module requires a new battery, the transmitter must be sent to Vaisala for maintenance. 68 M210704EN-E

VAISALA _ EE Installation 8-pin Connector SRE (ND) 6PINK (+) Ta 36RN (C4?) WT my — WA 28RN(-) SRED (NC) 0503-026 Figure 46 Wiring of the Optional 8-pin Connector Table 10 Wiring of the 8-pin connector PIN/Terminal Wire Serial Signal Analog Signal

RS-232 (EIA- |RS-485 (EIA-

(232) 485) 1 White Data out TX A - 2 Brown (serial GND) (serial GND) Signal GND (for both (channels) 3 Green - - (Ch 2+ 4 Yellow - - Ch1+ 5 Grey Supply - Supply - Supply - 6 Pink Supply + Supply + Supply + 7 Blue Data in RX B = 8 Shield/Red | Cable shield Cable shield Cable shield

OPERATION This chapter contains information that is needed to operate this product. Getting Started Within a few seconds after power-up the LED on the cover of the transmitter is lit continuously indicating normal operation. When the transmitter is turned on the first time, the language selection window opens: Select the language with Y A arrow buttons and press the SELECT button (the left-hand [1 button). The pressure has an effect on humidity calculations and accuracy. Therefore, accurate calculations can be achieved only when the ambient pressure is taken into consideration. See page 101 for instructions on how to set the pressure. Start-up time for DMT 340 transmitter is in total about 6 minutes. The ouputs (serial and analog) are activated 3 seconds after powering up the DMT340. In addition, 10 seconds after the measurement the outputs will freeze for about 6 minutes due to the sensor self diagnostics procedure (Sensor Purge and Autocal). The frozen output value will be the value the DMT349 transmitter reached during the 10 seconds of measurement. After the self diagnostics procedure the outputs are operational again. Dis play/Keypad Basic Display Display shows you the measurement values of the selected quantities in the selected units. Y ou can select 1... 3 quantities for the numerical basic display (see section Changing the Quantities and Units on page 98). VAISALA 71

USER'S GUIDE 0706-09 Figure 47 Basic Display The numbers refer to Figure 47 above: 1 = The Info shorcut button 2 = The Graph shortcut button changes the display into a curve mode 3 = Selected quantities Press the INFO button (in the basic display) to see the device information views, see section Device Information on page 107. NOTE From any view, in the absence of an EXIT button, a four-second press on the right-hand function button takes you directly to the basic display. Graphic History The graphical display shows the data trend or min/max graph of the selected quantities, one at a time. The graph is updated automatically while measuring. 40! 72! 3h 25n 2h 15n 1h On 3h 25n 2h 15n 1h On

0706-01 Figure 48 Graphical Display Trend graph: Shows you a curve of average values. Each value is a calculated average over a period. See Table 11. 72 M210704EN-E

VAISALA Operation Max/min graph: Shows you the minimum and maximum values in a form of curve. Each value is max/min over a time period. See Table 11 below. The period for the trend and max/min calculations depends on the selected graph window as follows: Table 11 Periods for Trend and Max/Min Calculations Observation Period Period for Trend/Max/Min Calculations (Resolution) 3 hours 1,5 minutes 1 day 12 minutes 10 days 2 hours 2 months 12 hours 1 year 3 days 4 year* 12 days

• Shows the maximum logging period of the data logger module (available when data logger module is installed) Use the following functions in the graphical display: Press the NEXT button to change between the trend graph and max/min graph for the quantities selected for display. Press the EXIT button to return to the basic display. Press the Y A arrow buttons to zoom in and out in the graph window. Press the € arrow buttons move the cursor (vertical bar) along the time axis. The cursor mode allows you to observe individual measuring points. The numerical value at the cursor position is shown at the left upper corner. The right upper corner shows the time from the present to the chosen moment (without the logger module), or the date and time at the cursor position (when the logger module is installed). If the optional data logger module is installed, you can scroll the cursor off the screen to move to a new point on the time axis. The new date will be displayed, and the cursor will be centered at the date where the cursor scrolled off the screen. T: 0.41 °C 2721/2004 FR STboo 11/2004 11/2006 NEXT EXIT

Figure 49 Graphical Display with Data Logger The time that is shown below the graph is adjusted with the current time offset of the transmitter. If you change the transmitter's date and time setting, the displayed timestamps in the history graph change accordingly. For an explanation of the effect of changing the date and time manually, see section Data Logger Module on page 66.

USER'S GUIDE Table 12 Graph Information Messages Failure Message Interpretation Power outage Power failure (marked also with dashed vertical line) No data Quantity has not been selected for the display Device failure General device failure. T meas. failure Temperature measurement/sensor failure RH meas. failure Humidity measurement/sensor failure Adj. mode active Adjustment mode active (data recorded in the adjustment mode is not displayed) Autocal Autocal performed (only shown in 3 h graphs) A question mark after time tells you that at least one power failure (dashed vertical line) has occurred after the chosen moment. In this case, the actual time difference between the present and the cursor position is not exactly known. Menus and Navigation Y ou can change settings and select functions in the menus.

1. Openthe MAIN MENU by pressing any of the À Y B arrow

buttons in the basic (numeric) display mode. Move in the menus by using the À Y arrow buttons. Open a submenu with button. Press < to return to the previous level. Function button EXIT returns you back to the basic display. on & w D Adjustment menu is displayed only when ADJ button (on the motherboard inside the transmitter) is pressed. 74 M210704EN-E

Lol # PMeasuring @ pUnits 2 pinterfaces # Rounding

LA>Diagnostics CArAdiust Ta measurement £ Menu PIN @ rAdjust T measurement @ pAdjust analog outputs à pAdjustment info 0706-011 Figure 50 Main Views Some menu items, such as Relay outputs in the Interfaces menu, are only shown if supported by the transmitter and the installed options. Changing the Language

1. Go back to the basic display by keeping the right-hand [1 button

pressed for four seconds. Open the Main menu by pressing any of the W À 4 buttons. Scroll to the System menu option, and press the button. The menu option is indicated with the wrench % symbol.

4. Scroll to the Language menu option, and the left-hand [7] button.

The menu option is indicated with the flag À symbol.

5. Select the language with the W A buttons, and confirm the

selection by pressing the left-hand [71 button.

6. Press the right-hand{—] button to exit to the basic display.

USER'S GUIDE Rounding Setting Round off one decimal by using the Rounding function . The default setting is rounding on. Rounding has no effect on quantities without decimals.

1. Openthe MAIN MENU by pressing any of the À Y B arrow

2. Select > Display and confirm by pressing the b arrow button.

3. Select Rounding and press ON/OFF button.

4. Press EXIT to return to the basic display.

Display Backlight Setting As a default the display backlight is always on. In the automatic mode the backlight stays on for 30 seconds from the last press of the button. When pressing any button, the light turns on again.

on & w D Open the MAIN MENU by pressing any of the À Y B arrow buttons. Select > Display, press the > arrow button. Select Contrast, press the ADJUST button. A djust the contrast by pressing the B arrow buttons. Press OK and EXIT to retum to the basic display. Keypad Lock (Keyguard) This function locks the keypad and prevents unintentional key presses.

Keep pressing the left-hand function button for 4 seconds to lock the keypad (at any display). To unlock the keypad, press the OPEN button for 4 seconds. M210704EN-E

Menu PIN Lock You can prevent unauthorized changes of the device settings by Operation activating the menu PIN lock. When this function is activated, the basic display and graphical view are available but access to the menus is locked. The key symbol indicates the activation of this feature.

1. Openthe MAIN MENU by pressing any of the À W 4 arrow

4. Enter a PIN code by using the A Y arrow buttons. Press OK to

confirm the setting. Now the PIN lock is on and a key symbol is shown in a display.

5. Press EXIT to return to the basic display. Returning to the menu is

possible only by entering the correct PIN code. When you want to turn off the PIN lock, go to the menu by giving the PIN code and select System, Menu PIN, press OFF button. In case you have forgotten the PIN code, open the transmitter cover and press the ADJ button once. Wait for a few seconds and the adjustment menu opens. Select Clear menu PIN, press CLEAR. NOTE LOCK. Y ou can also disable the keypad completely with serial command VAISALA Factory Settings Use the display/keypad to restore the factory settings. This operation does not affect the adjustments. Only settings available in the menus are restored. Press any of the arrow buttons to open the MAIN MENU.

2. Select System by pressing the arrow button.

Select Factory settings and press the REVERT button to confirm your selection. Press the Y ES button to reset all settings to the factory defaults. See section General Settings on page 98 for a description of the other menu options.

USER'S GUIDE Display Alarms The Display Alarm feature provides two independently configurable alarms for transmitters with the display/keypad option. Each alarm tracks a selected quantity, with a freely configurable low and high limit. Each alarm also has a configurable hysteresis value to prevent unnecessary triggering when the measurement fluctuates around an alarm limit. The alarms can be configured for any quantity supported by the transmitter. The configuration of the Display Alarms can only be done using the display/keypad option. An alarm is activated when the selected quantity goes higher than the high limit, or lower than the low limit, much in the same way as the relays. When an alarm is activated, an alarm note is displayed on the display, and the lights of the display will blink. Ar A 7 ALARH T > 25.0 °C Alarm limit crossed on 2008-02-19 at 8:09. 0802-041 Figure 51 Display Alarm Active Multiple alarms can be active at the same time; the alarm that was triggered first will be shown on the display. The next active alarm is revealed when the currently shown alarm is acknowledged by pressing the OK button. Note that activated alarms are only shown on the screen. There are no alarm messages output to the serial line, or markers placed in the graph data. A fter an alarm has been acknowledged, you must refer to the data graphs to see when the measured quantities have exceeded the limits. Configuring a Display Alarm

1. Enterthe Main Menu by pressing an arrow key on the keypad.

2. Use the arrow keys to select Display, followed by Alarms, to open

3. Use the arrow keys to select an alarm to configure. The alarm

editing page opens. NOTE Changes you do on the alarm editing page will take effect immediately, and may cause an alarm to appear on the screen.

4. To select a quantity for the alarm, press the Change button and

select the quantity from the list.

5. To modify or remove the alarm limit values, move the selection

over the A ct. above or Act. below field and press the Set button. You will be prompted to Modify or Remove the value. ALARH 1 Quantity: T Act. above: +095.00 °C Act. below: 0.00 °C Hysteresis: 1.00 °C W Alarm enable [OK ] CANCEL 0602-070 Figure 53 Modifying an Alarm Limit When modifying the value, use the arrow up and down buttons to change the value under the cursor. Left and right arrow buttons move the cursor. Select the OK button to accept the modified value, or Cancel to undo the modification.

6. Set a suitable Hysteresis value to prevent the alarm from being

triggered unnecessarily by small measurement changes that pass the alarm limit repeatedly.

8. Press the Exit button to leave the alarm configuration screen and

return to the basic view. VAISALA 79

USER'S GUIDE MI70 Link Program for Data Handling The real-time window function of the MI70 Link program allows you to monitor transmitter readings directly with a PC when transmitter is connected with a serial or USB cable. Y ou can also transfer recorded data from the main transmitter memory in numeric or graphical format, for further use in a spreadsheet program (such as Microsoft Excel) or virtually any other application. Follow the steps below to connect your transmitter to the MI70 Link program using the serial interface:

1. Connect your PC to the transmitter. Refer to section Serial Line

Communication on page 80.

2. Check thatthe DMT340 is powered.

3. Startthe MI70 Link program.

Start using the program. There is usually no need to select a COM port manually, the MI70 Link software can detect it automatically. The MI70 Link program, and the optional connection cables, are available from V aisala. See list of accessories in section Options and Accessories on page 158. Serial Line Communication Connect the serial interface by using either the user port or the service port. For permanent interfacing to host system, use the user port.Y ou can change the serial settings and operate in RUN, STOP and POLL modes. For temporary connections use the service port. Service port is always available with fixed serial settings. M210704EN-E

É EL (Be | 15 EL 0605-039 Figure 54 Service Port Connector and User Port Terminal on the Mother Board Numbers refer to Figure 54 above: 1 = Service port connector 2 = UserPortTerminals User Port Connection Use suitable serial cable between the user port RxD, GND and TxD screw terminals and the PC serial port. Table 13 Default Serial Communication Settings for the User Port Parameter Value Bauds 4800 Parity Even Data bits 7 Stop bits I Flow control None VAISALA 81

USER'S GUIDE 0506-03 Figure55 Connection Example Between PC Serial Port and User Port Connections to pins 4,6,7 and 8 are required only if your software requires hardware handshaking. NOTE User port cannot be used when the RS-485 module is connected. Service Port Connection Connection Cables To connect to the service port, you need a suitable cable with an RJ45 connector. Depending on the connections of your PC, you can either use the Serial Connection Cable (optional accessory 1944677) or the USB- RJ45 Serial Connection Cable (optional accessory 219685). The USB cable enables you to connect the transmitter to a PC via a standard type A USB port. Note that the USB cable does not enable high speed data transfer, since the bit rate is limited by the serial interface of the service port. Installing the Driver for the USB Cable Before taking the USB cable into use, you must install the provided USB driver on your PC. When installing the driver, you must acknowledge any security prompts that may appear. The driver is compatible with Windows® 2000, Windows® XP, Windows Server°® 2003, and Windows® Vista.

1. Check that the USB cable is not connected. Disconnect the cable if

you have already connected it. M210704EN-E

2. Insert the media that came with the cable, or download the driver

from www.vaisala.com.

3. Execute the USB driverinstallation program (setup.exe), and

accept the installation defaults. The installation of the driver may take several minutes.

4. After the driver has been installed, connect the USB cable to a USB

port on your PC. Windows will detect the new device, and use the driver automatically.

5. Theinstallation has reserved a COM port for the cable. Verify the

port number, and the status of the cable, using the Vaisala USB Instrument Finder program that has been installed in the Windows Start menu. Windows will recognize each individual cable as a different device, and reserve a new COM port. Remember to use the correct port in the settings of your terminal program. If you are using the Vaisala M170 Link application, you do not need to check the COM port, as the MI70 Link detects the USB connection automatically. There is no reason to uninstall the driver for normal use. However, if you wish to remove the driver files and all Vaisala USB cable devices, you can do so by uninstalling the entry for Vaisala USB Instrument Driver from the A dd or Remove Programs (Programs and Features in Windows Vista) in the Windows Control Panel. Using the Service Port

1. Unfasten the screws on the transmitter cover, and open the

2. Connect the desired cable (serial interface cable or USB cable) to

your PC and the service port connector on the transmitter. For location of the service port, refer to Figure 54 on page 81.

3. Open a terminal program and set the communication settings as

follows: Table 14 Communication Settings for the Service Port Parameter Value Bauds 19200 Parity None Data bits 8 Stop bits 1 Flow control None For a detailed explanation of using a terminal program, see section Terminal Program Settings on page 91.

4. Power-up the DMT340.

USER'S GUIDE LAN Communication 84 _ To enable LAN communication, a LAN or WLAN interface must be physically connected to the network, and the networking settings must be suitable for your network. For a description of interfaces, see sections LAN Interface on page 64 and WLAN Interface on page 65. The LAN and WLAN interfaces both operate by accessing the serial interface (User Port) of the transmitter. A1l commandés that are available using the serial interface are available through the LAN and WLAN interfaces; refer to section List of Serial Commands on page 94. For instructions on how to connect using a terminal program, see section Terminal Program Settings on page 91. IP Configuration The IP settings of the LAN and WLAN interfaces are described in Table

15. The current settings can be viewed on the serial line or using the

device information display; see section Device Information on page 107. Table 15 IP Settings for the LAN and WLAN Interfaces Parameter Description Automatic configuration If enabled, the transmitter will retrieve its (DHCP) network settings (including the IP Address) from a server in the network. If disabled, static network settings are used instead. Web configuration If enabled, the settings of the interface can be changed using à web browser. The configuration page can be accessed by browsing to the IP address of the transmitter. IP Address The four part network ID of the transmitter. Must be set manually if automatic configuration is not used. Example value: 192.168.0.222 Netmask Used together with the IP address to determine which network the transmitter is a part of. Must be set manually if automatic configuration is not used. A common netmask is 255.255.255.0. Gateway IP address of the server that enables the transmitter to access other networks. Must be set manually if automatic configuration is not used. Example value: 192.168.0.1 MAC The MAC address is the unique hardware address of the LAN or WLAN interface. Cannot be changed. _ M210704EN-E

VAISALA Operation Using Display/Keypad Y ou can configure the IP settings of the LAN and WLAN interfaces using the display/keypad as follows: Press any of the arrow buttons to open the MAIN MENU. Press the > arrow button to select Interfaces. Press arrow button to select Network settings. There will be a delay as the transmitter refreshes the network information. You are now in the Network Interface menu. Selecting the IP configuration option opens the IP configuration menu. NETHORK INTERFACE & BP configuration & bTelnet settings # Web configuration # Disconnect all EXIT 0802-113 Figure 56 Network Interface Menu The Network Interface menu also allows you to enable or disable the Web configuration option, or Disconnect all users that are currently accessing the LAN or WLAN interface. In the IP configuration menu, select Automatic configuration OHCP), or enter the IP address, Netmask and Gateway manually. If automatic configuration is enabled, manual configuration cannot be done. IP CONFIGURATION 1P addr: 172.29.100.17 = 255.255.0.0 Netm Gatew.: 172.25.0.1 MAC: 00:40:9d:2a:f a:60 OFF EXIT 0709-04 Figure 57 IP Configuration Menu To enter a value manually, use the the À W arrow buttons to select the parameter to change, and press Change. A cursor will appear in the first digit. Move the cursor using the € arrow buttons, and change the value under the cursor using the À Y arrow buttons. Confirm the selection by pressing OK. After configuring the desired parameters, press EXIT to return to the basic display.

USER'S GUIDE Using Serial Line Use the serial line command NET to view or set the network settings for the LAN and WLAN interfaces. Y ou can also refresh the network information or disconnect all active connections. NET [REFRESH] [DISCONNECT] [DHCP WEB] [DHCP IP SUBNET GATEWAY WEB] where REFRESH = DISCONNECT = DHCP = WEB IP = SUBNET GATEWAY Examples: >net refresh

Updates the network information and displays it Disconnects all current sessions ON or OFF. Enables or disables the automatic IP configuration. ON or OFF. Enables or disables the Web Configuration page. The four part network ID of the transmitter. Must be set manually if automatic configuration is not used. Used together with the IP address to determine which network the transmitter is a part of. Must be set manually if automatic configuration is not used. IP address of the server that enables the transmitter to access other networks. Must be set manually if automatic configuration is not used. : OFF : 192.168.0.101 : 255.255.255.0

: 00:40:9d:2c:d2:05 : Connected Wireless LAN Configuration The settings of the WLAN interface are described in Table 16. The current settings can be viewed on the serial line or using the device information display; see section Device Information on page 107. Table 16 Wireless LAN Settings Parameter Description SSID The service set identifier (i.e. network name) of the wireless network to connect to. 1 … 32 characters. Security type The security type of the wireless network. The options are: OPEN OPEN/WEP WPA-PSK/TKIP WPA-PSK/CCMP All other choices except OPEN require a security key; see below. Security key The encryption key or passphrase that is used with an encrypted network. Using Display/Keypad Y ou can configure the Wireless LAN settings using the display/keypad as follows: Press any of the arrow buttons to open the MAIN MENU.

2. Pressthe b arrow button to select Interfaces.

Press the > arrow button to select Network settings. There will be a delay as the transmitter refreshes the network information.

4. Pressthe b arrow button to select Wireless LAN settings.

Type: Open/unencrypte! < Key/passphrase SET EXIT 0802-11 Figure 58 Wireless LAN Settings The Name entry on the page shows the SSID of the currently selected wireless network. To change the SSID, press the SET button. Use the À Y arrow buttons to change the character under the cursor, and <B> arrow buttons to more the cursor. Press the OK button when done. Enter network name {SSID}: [OK _] CANCEL 0802-10 Figure 59 Entering Network SSID To change the currently selected Network type, select the Type entry and press the Change button. Select the new type from the list and press the Select button.

WIRELESS NETHORK TYPE

FAOpen/unencrypted pen/WEP WPA-PSK/TKIP PA-PSK/CCMHP SELECT CANCEL 0802-12 Figure 60 Selecting the Wireless Network Type If you have selected an encrypted network type (WEP or WPA), you must enter the security key to be used. Select the Key/passphrase entry and press the Set button. Enter the key in the same way as the SSID, and press the OK button. With the WEP encryption you must enter the encryption key in hexadecimal (10 hexdecimals for 64-bit encryption or 26 hexadecimals for 128-bit encryption). A WPA key must be 8 … 63 ASCII characters. M210704EN-E

in the Wireless Network Settings menu. Y ou will be asked to confirm the new settings. Note that when new settings are saved, all currently active WLAN connections are disconnected. Using Serial Line Use the serial line command WLAN to view or set the wireless network settings. If you set an encrypted network type, you will be asked to enter the security key. With the WEP encryption you must enter the encryption key in hexadecimal (10 hexdecimals for 64-bit encryption or 26 hexadecimals for 128-bit encryption) or with plain A SCII characters (5 characters for 64-bit encryption or 13 characters for 128-bit encryption). À WPA key must be 8 … 63 ASCII characters.

Warning: Active connection will be disconnected.

Telnet Settings When a telnet connection is established via the LAN or WLAN interface, the session has the same communication mode, run interval, poll address and echo settings as the serial port (user port) session would have.

USER'S GUIDE These settings can be changed using the display/keypad, using the serial line (user port or service port), or on-the-fly during the telnet session. The display menu path to the telnet settings is: Main menu Interfaces Network Interface Telnet settings. The commands for changing the settings are SMODE, INTV, ADDR, and ECHO. Web Configuration for LAN and WLAN The LAN and WLAN interfaces both have a web configuration page that is accessible using a browser. If you have not disabled the page from the network settings, you can access it with a web browser at the IP address of the interface. When accessing the web configuration page, you must first log in. Username: user Password: vaisala The web configuration page provides similar network configuration options as the serial line and the display/keypad. It also has additional options for advanced users. For example, there are more options for securing the wireless network. If these additional options are used, they will appear as custom configurations when viewed from the serial line or the display/keypad. M210704EN-E

@VAISALA Vaisala WLAN Interface Configuration and Management Home Configuration Network Configuration Netnork RES (Configur the network balowr. IPV6 satngs are shown here for informational purposes. 1PvG Link Local Address: FE20::240:DFFFE2C:D1OF Site Local Adress: none 1Pv4 and DNS © Obtain an IP address automatealy using DHCP * Q Use the following IP addr= + 1P Address: + subnet mask [° Default Gateway: + inon oNs: - Changes to DHCP, 1P addrees, Subnet Mask, and DNS may effect yaur browser connection: »_ Wireless LAN Settings > Wireless Security Settings > Wireless 802.1x Authentication Sectinge > Advanced Network Settings. 0802-114 Figure 61 Web Configuration Interface for WLAN Terminal Program Settings The instructions below describe how to connect to the DMT340 using the PuTTY terminal application for Windows. Perform the necessary cabling and configuration of the transmitter before following the instructions. PuTTY is available for download at www.vaisala.com. Opening a Serial/USB connection . Power up the DMT340 and start the PuTTY application.

2. Select the Serial & USB settings category, and check that the

correct COM port is selected in the Serial or USB line to connect to field. Change the port if necessary. If you are using a Vaisala USB cable, you can check the port that it uses by clicking the USB Finder... button. This opens the Vaisala USB Instrument Finder program that has been installed along with the USB drivers. VAISALA 91

3. Check that the other serial/USB line settings are correct for your

connection, and change if necessary. The default settings (shown in Figure 1) are used by the Service Port of the DMT340. À PuTTY Configuration (HE Category & Session Options controling local serial and USB Ines d- Terminal Select a seral/USB line & Window S- Connection Serial or USBline to comnectto [COM Das CUSE Finder. Proxy Telnet Configure the serial/USB ne Rlogin Serial & USB Speed baud) 19200 Data bis 8 Stop bits 1 Party None v Bow control None v 0810-070 Figure 62 Opening a Serial Connection 4 Click the Open button to open the connection window and start using the serial line. If PuTTY is unable to open the serial port you selected, it will show you an error message instead. If this happens, restart PuTTY and check the settings. Opening a Telnet session (LAN/WLAN) NOTE The instructions below assume that the LAN/WLAN interface on the transmitter is correctly configured and the network connection is already done.

1. Power up the instrument and start the PuTTY application. If your

transmitter acquires a network address using DHCP, wait for a minute for this to complete, then verify the address from the transmitter.

3. Enterthe IP address of your transmitter in the Host Name (or IP

address) field. If you do not know the port, the default port 23 is likely correct. R PuTTY Configuration BX) Category: & Session Basic options for your PuTTY session # re Specify the destination you want to connect to & Window À Connection Host Name (or IP address) Bot pses 192.168.0.12 ][23 ] Proxy Connection type: Tainet OBaw ©lenet OfRlogn © Serial er Use Load, save or delete a stored session Saved Sessions Defaut Settings Load Close mindow on ext: OAways © Never © Oniy on clean ext Cu JC HP Cœr J[ œre 0810-071 Figure 63 Opening a Telnet Connection 4 Click the Open button to open the connection window and start using the telnet session. If PuTTY is unable to connect the IP address you entered, it will show you an error message instead. If this happens, check the IP address and the connections, restart PuTTY, and try again. VAISALA 93

USER'S GUIDE 94 _ List of Serial Commands The bold text in the brackets is the default setting. Enter commands by typing them on your computer and pressing the Enter key. Table 17 Measurement Commands Command Description R Startthe Continuous Outputting S Stop the Continuous Outputting

SDELAY View or set user port (RS232 or RS485) answer minimum delay SERI[baud pds] User Port Settings (Default: 4800 E 7 1) [0 21][START END] ADDR [0 … 99] Setthe Transmitter Address (for POLL Mode) NET View or set networking parameters for LAN and WLAN interfaces WLAN View or set wireless network parameters for WLAN interface OPEN [0 … 99] Open Temporarily Connection to a POLL Mode Device CLOSE Close the Temporary Connection (Back to POLL Mode) Table 18 Formatting Commands Command Description FORM Set the output format of SEND and R commands FST Add the state of Autocal, purge and sensor warming in connection with SEND and R commands FDATE Add date to R and SEND outputs FTIME Add time to outputto SEND and R outputs Table 19 Data Recording Commands Command Description DIR Lists trend log files PLAY Output recorded data file. Start and end times can only be specified if the data logger module is installed. The times must be given in the following format: yyyy-mm-dd hh:mmi:ss DSEL Select logged (and displayed) quantities DELETE Delete all data files, including the memory of the optional data logger module UNDELETE Recover the deleted files that have not been overwritten _ M210704EN-E

VAISALA _ Operation Table 20 Purge Commands Command Description PUR Purge settings PURGE Start manual purge Table 21 Autocalibration Commands Command Description AUTO Autocal settings AUTOCAL Start manual autocal Table 22 Calibration and A djustment Commands Command Description FCRH RH 2-point-adjustment Kg Td/f 1-point-adjustment CT T 1/2-point-adjustment ACAL Perform analog output adjustment Table 23 Setting and Testing the Analog Outputs Command Description ASEL Configure analog output quantities and scales ITEST Test analog outputs AMODE Display analog output mode AERR Change the error output ASCL Analog output scaling Table 24 Setting and Testing the Relays Command Description RSEL Configure relay settings RTEST Test relays Table 25 Other Commands Command Description ? Output the information about the device 7? Output the information about the device in POLL-state CDATE Adjust the output date/set date when adjustment enabled CODE Display the order configuration code of the transmitter CTEXT Display the adjustment information text/set information text when adjustment enabled DATE Set date. DSEND Output the reading, also in poll mode. ECHO Turn the serial interface echo ON/OFF ERRS Display transmitter error messages FIND All devices in POLL mode send their addresses HELP List the most common commands LOCK Lock the menu/keypad MODS Display module status PRES Setthe value for pressure compensation RESET Reset the device TEST Self-diagnostics information TIME Settime. UNIT Display output units VERS Display the software version information

Enter the R command to start the continuous output of measurements. Example:

Tdf=-20.6 'C H20= 958 ppmV x= 0.6 g/kg

Tdf=-20.7 'C H20= 958 ppmV T= 23.8 ‘C RH= 3.3 %RH If a value is too long to fit to the allocated space in the output, or if there is an error in outputting the quantity, the value is displayed with stars ‘*’. Y ou can change the format of the output with the following commands: Outputting interval can be changed with the INTV command. Output message format can be changed with the FORM command. Status of purge, sensor warming and AutoCal can be added with the FST command. Date and time information can be added with commands FDATE and FTIME Stopping Continuous Outputting

Use the S command to end the RUN mode. After this command all other commands can be used. Y ou can also press the Esc button or reset the transmitter to stop the outputting. See command SMODE to change the default (power-up) operation mode. M210704EN-E

>fdate on Form. date 1 ON >send 2000-01-31 23:08:46 Tdf=-20.6 'C H20= 960 ppmV T= 23.9 'C RH= 3.3 %RH

FST To output the state of purge, sensor warming and AutoCal in connections with SEND and R commands press FST [x]. Where x = ONorOFF (default) Example: >fst on Form. status 1 ON >send N © RH= 40.1 %RH T= 24.0 'C Td= 9.7 'C Tdf= 9.7 'C a=

Where the state of the probe is indicated by the following letters and values: N.xxx = Normal operation where xxx = Probe heat power H..xxx = Purge where xxx = Sensor temperature (°C) S..xxx = Sensorcooling wherexxx = Sensor temperature (2C) after purge A..xxx = AutoCal where xxx = Sensor temperature (°C) w..xxx = Sensorwarming wherexxx = Sensor heat power See section General Settings on page 98 for a description of the other serial commandés. General Settings Changing the Quantities and Units To change quantities and units use serial commands or the optional display/keypad. See Table 3 on page 19 for available quantities and Table 4 on page 20 for optional quantities. NOTE Only the quantities selected when ordering the device can be selected as an output quantity. Using Display/Keypad Use display/keypad to select the display output quantities.

1. Press any of the arrow buttons to open the MAIN MENU.

2. Pressthe b arrow button to select Display.

3. Press b arrow button to select Quantities.

4. Select the quantity by using the À Y arrow buttons. Confirm the

selection by pressing SELECT. Y ou can select 1 … 3 display quantities at a time. 98 M210704EN-E

Chapter 4 2 Operation

5. Press EXIT to return to the basic display.

Use the A V arrow buttons to select Units. Confirm the selection by pressing the right-hand arrow button. 4 Usethe A Y arrow buttons to select display units. Confirm the selection by pressing CHANGE. The unit changes from metric to non-metric or the other way round.

5. Press EXIT to retum to the basic display.

NOTE Changing the units by using the display/keypad has no effect on the serial output units. VAISALA Using Serial Line Use the serial line command FORM to change the format, and the command UNIT to select metric or non-metric output units. FORM Use the serial line command FORM to change the format or select a certain quantities for the output commands SEND and R. FORM [x] where x = Formatterstring The formatter string consists of quantities and modifiers. If no formatter string is entered, the command will display the currently active formatter string. Note that the hash symbol "#" is shown as a backslash "\" when viewing the current formatter string. When entering the command, use the abbreviations of the quantities. For more information on quantities, see Table 3 on page 19 and Table 4 on page 20. The modifiers are presented in Table 26 below. Table 26 FORM Command Modifiers Modifier Description X.Yÿ Length modifier (number of digits and decimal places)

Operation Metric units Non-metric units NOTE This command changes both the serial output and display units to either metric or non-metric units. When you want to output both metric and non-metric units simultaneously on the display, select the display units by using the display/keypad. Use UNIT H20 [ppmv/ppmw] to change H20 units. Use the MOL/MOLI command to view/set mole weight parameter that will be used in calculating H20 ppm. Pressure Compensation Setting The pressure has an effect on humidity calculations and accuracy. Therefore, accurate calculations can be achieved only when the process pressure is taken into consideration. Note that conversions from mmHg and inHg are defined at 0°C and for mmH20 and inH20 at 4°C. NOTE Pressure compensation is intended to be used in normal air only. When measuring in other gases, please contact V'aisala for further information. NOTE Fixed pressure compensation value of 1013.25 hPa is used when in adjustment mode. VAISALA Using Display/Keypad Use display/keypad to set the pressure compensation. To select the pressure unit using display/keypad see section Changing the Quantities and Units on page 98.

1. Press any of the arrow buttons to open the MAIN MENU.

2. Select Measuring and press the arrow button to confirm your

3. Select Pressure compensation and press the arrow button to

confirm you selection. . Press SET and enter the pressure value by using the arrow buttons.

5. Press OK and EXIT to return to the basic display.

Using Buttons on the Motherboard Pressure set buttons (Pen. and P+) can be used to set the process pressure. [wait ES Ji

Æ NO. Figure 64 Pressure Set Buttons on the Motherboard Numbers refer to Figure 64 above:

Pressure set button Pressure check button Press check button (Pa) and a red led will flash the current pressure setting in bar. Press the set button (P) to set the pressure value. The number of presses equals the number of bar, to be set (for example, three presses = three bar.). After a few seconds, the red led will confirm the setting by flashing the new pressure value. Using Serial Line XPRES and PRES Command XPRES should be used if the value is changed frequently. Its value is not retained at reset, and when set to 0, last value set with PRES is used instead. Use the serial line and do the following: PRES [aaaa.a] XPRES [aaaa.a] M210704EN-E

2. Select System and press the arrow button to confirm your

3. Select Date and time and press the b arrow button.

4. Press the SET button to enter the adjustment mode, and use the

arrow buttons to select and change the values.

5. You can also change the date and time formats that are shown in

the graphs. The selected formats are only used in graphical display, they do not change the formats that are used in the serial communication.

6. Press EXIT to return to the basic display.

Using Serial Line To set time enter the TIME command. To set date enter the DATE command. TIME DATE These time and date settings are shown on the timestamps of PLAY command. When you want to include time and date in the R and SEND commands, use the FTIME and FDATE commands. Example: >TIME Time : 13:42:49 ? >DATE Date : 2007-05-31 ? NOTE If the optional Data Logger Module is not installed, time and date are cleared to 2000-01-01 00:00:00 at reset or at power failure. User Port Serial Settings The communication settings for the user port can be changed via the serial line or by using the optional display/keypad. The communication settings for the service port are fixed and not changeable.

1. Press any of the arrow buttons to open the MAIN MENU.

2. Select Interfaces and press the arrow button to confirm your

3. Select Serial interface and press the arrow button to confirm

4. Select Bit rate/Serial format/Comm. mode by pressing the

CHANGE button. Use the À Y arrow buttons to select and press SELECT to confirm your selection.

5. Select RUN interval for RUN communication mode and press SET

to confirm your selection.

6. Use the arrow buttons to set the measuring interval and the unit.

Press OK to confirm your settings.

7. Select POLL address for POLL communication mode. Press SET

to confirm your selection. 104 M210704EN-E

8. Use the arrow buttons to set the transmitter address. Press OK to

confirm the setting.

9. Use the arrow buttons to select ECHO. Press ON to tumtoiton.

Press OFF to turn it off.

10. Press EXIT to return to the basic display.

SERI Use the serial line command SERI [b p d s] to set communication settings for the user port. SERI[bpds] where b = Bauds(110, 150, 300, 600, 1200, 2400, 4800, 9600,19200, 38400, 57600, 115200) p = Parity (n =none, e =even, o =odd) d = Databits(7or8) s = Stopbits(1or2) Example: >SERI 600 N 8 1 600 N 8 1 SMODE Use the command SMODE [xxxx] to set the user port start-up operating mode. SMODE [xxxx] where xxx = STOP, RUN or POLL Table 28 Selection of Output Modes Mode Output Commands used STOP Only by command All (default mode) RUN Automatic output Only command S

POLL Only with command SEND [addr] Use with RS-485 buses, see RS-422/485 Interface on page Selected output mode will be activated after power outages.

USER'S GUIDE INTV Use the command INT V {xxx yyy] to set the outputting interval for the RUN mode. where xxx = Output inverval (0 … 255). 0: the fastest possible output rate. yyÿy = Unit(s, minorh) Example: >INTV 10 min Output intrv. : 10 min ECHO Use the command ECHO [x] to set the user port echo. The command either enables or disables echo of characters received. ECHO [x] where x ON (default) or OFF NOTE Y ou can use the SERI, SMODE, INTV and ECHO commands to change/view the user port settings even if you are currently connected to the service port. Data Filtering The averaging data filter calculates a average over a certain period of time. The lowest measurement noise is achieved with the extended filtering. There are three filtering levels available. Table 29 Filtering Levels Setting Filtering level OFF No filtering ON (default) Standard = short filtering (about 15 s moving average) EXTENDED Extended filtering (default: 1 min average) Use display/keypad to set the filtering level. 106 M210704EN-E

1. Press any of the arrow buttons to open the MAIN MENU.

2. Select Measuring by pressing the arrow button.

3. Select Filtering and press CHANGE to confirm your selection.

Select Off/Standard/Extended and press SELECT to confirm your selection.

5. Press EXIT to return to the basic display.

FILT Use the serial line to set the filtering level. Use the FILT [xxx] command where xxx = OFF, ON or EXT (default =ON) Device Information Use the display/keypad or the serial line to display the device information. Press the INFO button in the basic display to see the following information: current sensor operation (for example, AutoCal or Purge) in progress present or past unacknowledged errors device information adjustment information fed by the user measuring settings information on Purge settings Display Alarm settings serial interface information network settings and status of the LAN and WLAN interfaces analog output information relay output information Fa 7 o \r AE) Fa or

MEASURING SETTINGS SERIAL INTERFACE

Pressure compensation: Port type: RS-232 Fixed value 0.0 barg 4800 bis, 7 E1 Molec. wt: 28.960 g/mol Comm. mode: STOP Fittering: Off Echo is on. 0706-012 Figure 65 Following Device Information on the Display

USER'S GUIDE 108 _ Proceed in the information views by pressing the MORE button as many times as you get the desired information. Y ou can browse through the information displays also with arrow buttons. Press OK to return to the basic display.

Use the serial line command ? to check the current transmitter configuration. Command ?? is similar but can also be used if the transmitter is in POLL mode.

VAISALA _ EE Operation HELP Use the command HELP to list the commands. >hetp

USER'S GUIDE Resetting the Transmitter Using Serial Line RESET The RESET command resets the transmitter. The user port switches to start-up output mode selected with command SMODE. Locking Menu/Keypad by Using Serial Line LOCK Use the LOCK command to prevent the user from entering the menu using the keypad, or to lock the keypad completely. Y ou can optionally set a 4-digit PIN code, for example 4444. If a PIN code has been set, the user will be prompted to enter the code when trying to access the menu. Entering the code correctly will disable the lock until the user returns back to the basic view. LOCK [x] [yyyy] where x = Keypad locking level, range 0...2. The options are:

0 - No lock (enables full access)

1- Menu locked, but graphs are accessible

2 - Keypad completely disabled

yyyy = 4-digit PIN code. The code can only be set when keypad locking level is 1. Examples: >lock 1 4444 Keyboard lock : 1 [4444]

Data Recording Data recording function is always on and collects data automatically into the memory of the device. If the optional data logger module is installed, the transmitter uses it automatically. Recorded data does not disappear from the memory when the power is switched off. Collected data can be observed in a form of a graph in the graphical view of the display or it can be listed out by using the serial line or MI70 Link program. Selecting the Data Recording Quantities If the device is provided with the optional display, the recorded quantities are always those selected for the display. Up to three quantities can be recorded at a time. See section Changing the Quantities and Units on page 98 for instructions on how to select the display quantities with the keypad. DSEL Use the serial line command DSEL [xxx] to select the quantities to be recorded if the transmitter is not equipped with display/keypad. Y ou may also dump the logged data to the serial line in numeric form with the following commands. DSEL [xxx] where xxx = Data recording quantity. See Table 3 and Table 4 on page 19 for the quantities. Enter the command without parameters and press ENTER to display current recording parameters. Example: >dsel rh t tdf RH T Tdf View Recorded Data If the device is provided with the optional display, the graphical display shows the data of the selected quantities, one at a time. See section Graphic History on page 72 for details about graphical display. VAISALA 111

USER'S GUIDE DIR Use the serial line and enter the DIR command to check the available files. Without the data logger module, the transmitter records five files (five observation periods) for each selected quantity. The data logger raises the number of recorded files to six for each quantity. Thus, the total amount of the files varies between 5 and 18. See Table 11 on page 73. Select, for example, two quantities (T and Tdf). The last column illustrates the number of data points that has been stored in the file. Example (data logger module installed): Tdf (2h intervals) 2008-03-31 Tdf (12 h intervals) 2008-02-04 © Tdf (3 d intervals) 2007-03-04 >dir File description Oldest data available 1T (90 s intervals) 2007-05-30 05:25:30 2 T (12 min intervals) 2007-05-29 05:48: 3 T (2 h intervals) 2007-05-19 02: 4 T (12 h intervals) 2007-03-23 12 5 T (3 d intervals) 2006-04-20 00 6 T (12 d intervals) 2002-12-16 00: 7 Tdf (90 s intervals) 2007-05-30 05 8 Tdf (12 min intervals) 2007-05-29 05 9 Tdf (2h intervals) 2007-05-19 02: 10 Tdf (12 h intervals) 2007-03-23 12 11 Tdf (3 d intervals) 2006-04-20 00: 12 Tdf (12 d intervals) 2002-12-16 00:00:

Example (without data logger module): >dir File description Oldest data available 1T (90 s intervals) 2008-04-11 20:41:11 2 T (12 min intervals) 2008-04-10 :03: 3 T (2 h intervals) 2008-03-31 4 T (12 h intervals) 2008-02-04 5 T (3 d intervals) 2007-03-04 6 Tdf (90 s intervals) 2008-04-11 7 Tdf (12 min intervals) 2008-04-10

Operation PLAY Use the PLAY command to output the selected file to the serial line. If the data logger module is installed, you can specify an interval to be outputted. Data in the output is TAB > delimited. This is compatible with most spreadsheet programs. Before giving the command, set the local date and time with TIME and DATE commands, if needed. PLAY [x] [start date start time end date end time] where x = Number of the data file that will be outputted, range 0.18. The numbers correspond to the output of the DIR command; refer to the example on page 112. Selecting number 0 will output all data files. start date = Starting date of the interval to be outputted. Must be given in the following format: yyyy-mm-dd start time = Starting time of the interval to be outputted. Must be given in the following format: hh:mm:ss end date = Ending date of the interval to be outputted. Must be given in the following format: yyyy-mm-dd end time = Ending time of the interval to be outputted. Must be given in the following format: hh:mm:ss Example: >play 7 2007-05-05 00:00:00 2007-05-06 00:00:00 Tdf (12 min intervals) 2007-05-05 00:00:00 121 Date Time trend min max Yyyy-mm-dd hh:mm:ss "C "C "C 2007-05-05 00:00:00 -22.60 -22.63 -22.57 2007-05-05 00:12:00 -22.55 -22.58 -22.53 2007-05-05 00:24:00 -22.50 -22.53 -22.45 2007-05-05 00:36:00 -22.43 -22.45 -22.41 2007-05-05 00:48:00 -22.35 -22.41 -22.32 2007-05-05 01:00:00 -22.31 -22.33 -22.29 NOTE Output of large amounts of recorded data can result in huge data files and take a long time, up to several days for the entire memory of the data logger. To make it easier to process the data it is recommended to select the largest suitable data interval, and to specify the start and end times carefully. VAISALA 113

USER'S GUIDE Deleting the Recorded Files Y ou can delete the recorded data files using the keypad/display, or the DELETE command on the serial line. The deletion is always done for all data; you cannot delete individual files. Note that the transmitter automatically overwrites the old data when the memory is full, so manual deletion of the recorded files is not necessary in normal use. To delete the data files using the keypad/display:

1. Press any of the arrow buttons to open the MAIN MENU.

2. Select System by pressing the arrow button.

3. Select Clear graph memories by pressing the CLEAR button.

Press the YES button to confirm the selection. CAUTION This function clears the entire data history of the transmitter, including all graphs and the content of the optional data logger module. UNDELETE Similany to the DELETE command, the UNDELETE command is used without any arguments. It will recover all deleted data that has not been overwritten yet. Analog Output Settings The analog outputs are set in the factory according to the order form. In case you want to change the settings, follow these instructions. See section Third Analog Output on page 59. Changing the Output Mode and Range Both output channels have their own dip switch module with 8 switches, see the position in Figure 2 on page 22 (dip switches for analog output settings).

1. Select the current/voltage output, switch ON either of the switches,

2. Select the range, switch ON one of the switches from 3 to 7.

0503-045 Figure 66 Current/Voltage Switches of Output Modules Numbers refer to Figure 66 above: 1 = Current/voltage selection output switches (from 1 to 2) 2 = Current/voltage range selection switches (from 3 to 7) in analog output 1 and 2. 3 = Switches for service use only. Keep in OFF position always. NOTE Only one of the switches, 1 or 2, must be ON at a time. Only one of the switches, 3 to 7, must be ON at a time. VAISALA 115

USER'S GUIDE Example: 0 … 5 V voltage output selected for channel 1 and 4...20 mA selected for channel 2. OFF ON Selection N | | Voltage output selected

n | | Current output selected

NOTE If you have customized the error output setting (AERR), check that the set error values are still valid after changing the output mode/range, see section Analog Output Fault Indication Setting on page 119. Analog Output Quantities Use the display/keypad to change and scale the analog output quantities. Press any of the arrow buttons to open the MAIN MENU. Select Interfaces by pressing the arrow button. Select Analog outputs by pressing the à arrow button. Select Output 1/2/3 by pressing the arrow button. Select Quantity by pressing the À Y arrow buttons. Confirm your selection by pressing CHANGE.

6. Select the quantity by using the arrow buttons. Press SELECT to

confirm your selection.

7. Select Scale, lower limit, by pressing the A Y arrow buttons. Press

SET to confirm your selection. Press OK to confirm your setting.

VAISALA eee Operation

8. Select the upper limit by pressing the A Y arrow buttons. Use the

arrow buttons to set the upper limit value. Press SET to confirm your selection. Press OK to confirm your setting.

9. Press EXIT to retum to the basic display.

AMODE/ASEL Use the serial line to select and scale the analog output quantities. Connect the transmitter to the PC. Open the terminal connection between your PC and the transmitter.

Select and scale the quantities for the analog outputs with the command ASEL [xxx yyy zzz]. Note that the optional quantities can be selected only if they have been selected when ordering the device. where xxx = Quantity of channel 1 yyÿ = Quantity of channel 2 ZZZ Quantity of the optional analog output channel 3 Always enter all the quantities for all outputs. For quantities and their abbreviations see Table 3 on page 19. Use the command ASEL [xxx yyy] as shown in the example below when using a device with two analog outputs. Example: >asel td t Ch1 Td Low : -20.00 Ch1 Td high : 100.00 Ch2T Low : -40.00 Ch2T high : 180.00

USER'S GUIDE Analog Output Tests Use the display/keypad for testing to test the operation of the analog by forcing the outputs to known values. Measure then the values with a current/voltage meter. Use the display/keypad for testing. Press any of the arrow buttons to open the MAIN MENU. Select System by pressing the arrow button. Select Diagnostics by pressing the arrow button. Select Analog output tests by pressing the à arrow button. Select one of the testing options Force 0 % /50% /100% of scale. Press TEST to confirm your selection. All outputs are tested simultaneously. The actual output value depends on the selected range.

6. Press OK to stop testing. Press EXIT to return to the basic display.

Analog Output Fault Indication Setting Factory default state for analog outputs during error condition is 0 V/ OmA. Please be careful when selecting the new error value. The error state of the transmitter should not cause unexpected problems in process monitoring. Use the display/keypad to set the analog output fault indication. Press any of the arrow buttons to open the MAIN MENU. Select Interfaces by pressing the arrow button. Select Analog Outputs by pressing the arrow button. Select Output 1/2/3 by pressing the > arrow button. Select Fault indication. Press SET to confirm your selection. Enter the fault indication value by using the arrow buttons. Press OK to confirm your setting. This value is outputted if a transmitter error OCCUIS.

6. Press EXIT to retum to the basic display.

TrwREe AERR Use the serial line AERR command to change the error output. AERR Example: >aerr Ch1 error out : 0.000V ? 5.0 Ch2 error out O.000V ? 5.0

NOTE The error output value must be within a valid range for the output type. NOTE The error output value is displayed only when there are minor electrical faults such as a humidity sensor damage. When there is a severe device malfunction, the error output value is not necessarily shown. VAISALA 119

USER'S GUIDE Operation of Relays Quantity for Relay Output A relay monitors the quantity chosen for the relay output. Any of the quantities available can be chosen. Measurement-Based Relay Output Modes Relay Setpoints When the measured value is in between the "above" and "below" values, the relay is passive. When choosing lower value as "above" value and higher value as "below" value, the relay is passive when the measured value is not between the setpoints. Y ou can also set only one setpoint. See Figure 67 below for illustrative examples of the different measurement-based relay output modes. Mode 1: Only "above" Mode 2: Only "below" Legend setpolnt set setpolnt set A "Active above" setpoint value measured measured B "Active below" setpoint value value value . h Hysteresis value K Relay is active (NO - C connected) + Relayis released o Relayis activated time time Relay is active when value is Relay is active when value is above the setpoint. below the setpoint. Mode 3: Both setpoints Mode 4: Both setpoints set, "above" > "below" set, "above" < "below" measured measured value value time time Relay is active when value is Relay is released when value is outside the setpoints. outside the setpoints. 0610-076 Figure 67 Measurement-Based Relay Output Modes 120 _ M210704EN-E

Operation Mode 4 is usually used if an alarm needs to be triggered when the measured value exceeds a safe range. The relay is active when measurement is in range, and is released if the value goes out of range or the measurement fails. NOTE If the measurement of the selected quantity fails or the transmitter loses its power, the relay is released. Hysteresis Hysteresis function is to prevent the relay switching back and forth when measured value is near to the setpoint values. Relay is activated when the measured value passes the exact value of the setpoint. When returning and passing the setpoint again relay is released only until the value reaches the setpoint increased/decreased by the hysteresis value. Hysteresis should be smaller than difference of the setpoints. Example: When the ‘active above’ value is -30 °C and the hysteresis value is 2%, relay activates when the dewpoint reaches -30 °C. As the dewpoint then decreases, relay releases at -32 C. >rsel tdf t Rell Tdf above: - ? -30 Rell Tdf below: -30.00 ‘'C ? - Rell Tdf hyst : 5.00 'C ? 2 Rell Tdf enabl: ON ? Rel2 T above: 30.00 'C ? Rel2 T below: 20.00 'C ? Rel2 T hyst : 1.00 'C ? Rel2 T enabl: ON ? NOTE If both setpoints are specified and "above" setpoint is lower than "below" setpoint, the hysteresis works in the opposite direction, that is, relay is released when the measured value passes the exact value of the setpoint. VAISALA 121

USER'S GUIDE Relay Indicating Transmitter Error Status Y ou can set a relay to follow the operation status of the device. By selecting FAULT/ONLINE STATUS for output quantity a relay changes state on the basis of the operation status as follows: FAULT STATUS Normal operation: relay active (C and NO outputs are closed) Not measuring state (error state or power off): relay released (C and NC outpuis are closed) ONLINE STATUS Live measurement (data available): relay active (C and NO outputs are closed) No live data (for example: error state, chemical purge or adjustment mode): relay released (C and NC outputs are closed) See Figure 68 on page 123 for illustrative examples of the FAULT/ONLINE STATUSrelay output modes. M210704EN-E

Chapter 4 _ _ Operation

Analog output vs. "FAULT STATUS" relay Legend AERR Analog output "fault indication" value set by user ” Outputs frozen because of e.g. Purge or Autocal Measurement failure because of e.g. damaged sensor True value of the measurement parameter during the exceptional situation Relay active (NO - C connected) time Relay is released in case of a measurement failure only. . Relay is activated o Relay is released Analog output vs. "ONLINE STATUS" relay time Relay is released when the output values are frozen, the adjustment mode is activated, or an instrument failure is detected 0610-077 Figure 68 FAULT/ONLINE STATUS Relay Output Modes FAULT/ONLINE STATUS relays are usually used in conjunction with an analog output to obtain validity information for the output value. NOTE If transmitter loses its power, all status-based relays are released similarly to the case of an instrument failure. Enabling/Disabling the Relays Y ou can deactivate the relay outputs for example for service purposes of your system. VAISALA 123

USER'S GUIDE Operation of the Indication LEDs Relay is activated: LED islit. Relay is not activated: LED is not lit. Setting the Relay Outputs NOTE When having only one relay module installed, its relays are called ‘relay l'and 'relay 2". When having two relay modules, the relays of the the module connected to slot MODULE 1 (communications) are called ‘relay 1' and relay 2'and relays connected to slot MODULE 2 are called ‘relay 3' and 'relay 4' 0706-013 Figure 69 Relay Availability Number refers to Figure 69 above: 1 = Lists enabled relays. Activation state shown in black. Disabled relays are not shown. Use the display/keypad to set the relay outputs.

1. Press any of the arrow buttons to open the MAIN MENU.

2. Select Interfaces, confirm by pressing the b arrow button.

3. Select Relay outputs, confirm by pressing the arrow button.

4. Select Relay 1/2/3/4, confirm by pressing the arrow button.

5. Selectthe Quantity, confirm by pressing Change. Select the

Quentity by using the arrow buttons. Confirm your selection by pressing Select. (Press Fault Status when the relay follows the transmitter error.) Press Change to to set the value.

6. Select Act. above /Act. below. Press SET to confirm your

selection. If asked, select MODIFY if you want to set the setpoint 124 M210704EN-E

VAISALA Operation by using the arrow buttons. Select REMOVE if you want to remove the setpoint.

7. Select Hysteresis Press SET. Set the hysteresis by using the arrow

RSEL Use the serial line to select the quantity, setpoints and hysteresis or enable/disable the relay outputs. Enter the RSEL command. RSEL [q1 q2 q3 q4] where qi = quantity for the relay 1 or Fault/Online g2 = quantity for the relay 2 or Fault/Online g3 = quantity for the relay 3 or Fault/Online q4 quantity for the relay 4 or Fault/Online Factory setting: all relays disabled. Use the quantity abbreviations presented above. See Table 3 on page 19 and Table 4 on page 20. Example of window limit switch (upper and lower setpoints for control parameter): Selecting relay 1 to follow dewpoint/frost point temperature measurement and relay 2 to follow temperature measurement. Two relay setpoints are set for both relays. >rsel tdf t Rell Tdf above: - ? -10 Rell Tdf below: - ? -30 Rell Tdf hyst : 0.00 'C ? 5 Rel1l Tdf enabl: OFF ? on Rel2 T above: - ? 30 Rel2 T below: - ? 20 Rel2 T hyst : 0.00 'C ? 1 Rel2 T enabl: OFF ? on

USER'S GUIDE Example of normal limit switch (one setpoint for relay activation/deactivation): Selecting relay 1 to follow relative humidity, relay 2 to follow temperature, relay 3 to follow dewpoint and relay 4 to follow dewpoint. One setpoint is chosen for all the outputs. >rsel rh t td td Rell RH above: 60.00 %RH ? 70 Rell RH below: 70.00 %RH ? - Rell RH hyst : 2.00 %RH ? 2 Rell RH enabl: ON ? on Rel2 T above: 50.00 'C ? 60 Rel2 T below: 40.00 'C ? - Rel2 T hyst : 2.00 'C ? 2 Rel2 T enabl: ON ? on Rel3 Td above: 5.00 'C ? 10 Rel3 Td below: 0.00 'C ? - Rel3 Td hyst : 1.00 'C ? 1 Rel3 Td enabl: OFF ? on Rel4 Td above: 0.00 'C ? 20 Rel4 Td below: 0.00 'C ? - Rel4 Td hyst : 0.00 ‘C ? 2 Rel4 Td enabl: OFF ? on

Example of using relay 1 as fault alarm: selecting relay 1 to follow the fault status and relay 2 to follow the temperature measurement. >rsel fault t Rel1 FAUL above: - Rel1 FAUL below: Rell FAUL hyst : Rel1 FAUL enabl: ON ? Rel2 T above: 0.00 'C ? 30 Rel2 T below: 0.00 'C ? - Rel2 T hyst : 0.00 ‘'C ? 2 Rel2 T enabl: OFF ? ON Testing the Operation of Relays Testing activates relays even if they are disabled. Use the module push buttons to activate the relays. Press the REL 1 or REL 2 button to activate the corresponding relay. Use the display/keydpad to test the operation of relays.

1. Openthe MAIN MENU by pressing any of the arrow buttons.

output is forced to opposite state. Press OK to return to normal operation.

6. Press EXIT to retum to the basic display.

RTEST Use the serial line command RTEST [ON/OFF ON/OFF] to test the operation of the relays. Example: Testing all four relays. >rtest on on on on ON ON ON ON

>rtest off off off off

Enter the command RTEST to stop testing. Operation of the RS-485 Module RS-485 interface enables communication between RS-485 network and DMT349 transmitter. The RS-485 interface is isolated and offers a maximum communications rate of 115 200 bits/s. (For maximum bus length of 1 km, use bit rate 19200 bys or less.) When selecting an RS-232-RS-485 converters for the network, avoid self powered converters as they don't necessarily support the needed power consumption. Echo function shall be always disabled (OFF) when using the 2-wire connection. When using the 4-wire connection you can disable/enable the echo setting. NOTE User port on DMT340 main board cannot be used and connected when RS-485 module is connected. Service port is operating normally. VAISALA Networking Commands Set the RS-422/485 interface by using the following commands. The other serial line commandés are presented in section List of Serial Commands on page 94.

USER'S GUIDE RS-485 configuration commands SERI; ECHO; SMODE; INTV and ADDR may be entered by using either the service port or RS-422/485 port. Also the optional display/keypad can be used, see section Display/Keypad on page 71. SDELAY With the SDELAY command you can set delay (response time) for user port (RS232 or RS485), or view currently set delay value. Value corresponds to tens of milliseconds (e.g. 5 = 0.050s minimum answer delay). The value can be set between 0...254. Example: >sdelay Serial delay : 0 ? 10 >sdelay Serial delay : 10 ? SERI Use the SERI [b p d s] command to input RS-485 bus settings. where b = baud rate (300, 600, 1200, 2400, 4800, 9600,19200, 38400, 57600, 115200) p = party (n =none, e = even, o = odd) d = data bits (7 or 8) s = stop bits (1 or 2) ECHO Use the ECHO [x] command to enable/disable echo of characters received over the serial line. where x = ON/OFF (default =OFF) When using 2-wire connection, echo must be always disabled. SMODE Use the SMODE [xxxx] command to set the serial interface mode. where XXXX = STOP, RUN or POLL M210704EN-E

VAISALA where Operation In STOP mode: measurements output only by command, all commands can be used In RUN mode: outputting automatically, only command S can be used to stop, see command INTV below. In POLL mode: measurements output only with command SEND. See command ADDR below. When several transmitters are connected to the same line, each transmitter must be entered an own address in the initial configuration, and POLL mode must be used. INTV Use the INTV [n xxx] command to set the RUN mode output interval. where n = 1-255 xxx = S,MINorH Sets the RUN mode output interval. The time interval is used only when the RUN mode is active. For example, the output interval is set to 10 minutes. >INTV 10 min Output intrv. : 10 min

Setting RUN output interval to zero enables the fastest possible output rate. ADDR Addresses are required only for POLL mode (see serial line command SMODE on page 105). Use the ADDR [aa] command to input the RS- 485 transmitter address. where aa = address (0. 99) (default =0) Example: the transmitter is entered the address 99. >ADDR <cr> Address : 2? 99

USER'S GUIDE OPEN [nn] When all transmitters on the RS-485 bus are in POLL mode the OPEN [nn] command sets one transmitter temporarily to STOP mode so that other commands can be entered. where nn = address of the transmitter (0 … 99) CLOSE The CLOSE command switches the transmitter back to the POLL mode. Example: >OPEN 2 (opens the Line to transmitter 2, other transmitters stay in POLL mode) >CRH(for example, calibration performed) CLOSE (Line closed) Sensor Functions AutoCal To obtain the best possible accuracy in measurements taken in dry environments, DMT340 has a built-in AutoCal. During the AutoCal, DMT340 adjusts the dry-end reading to correspond to the calibrated values. This is a unique and patented method to avoid errors in accuracy when monitoring low dewpoints. The AutoCal is carried out if the following criteria for the measurement environment are fulfilled: Relative humidity must be <2 % (DMT340 M-sensor). -_ Temperature must be 0<T <80 ©C (or sensor warming activated for - 40<T <80 C). Humidity environment must be stable. The maximum change in the dewpoint can be 2 ©C in 15 seconds. NOTE AutoCal cannot operate if the above conditions are not fulfilled. M210704EN-E

VAISALA Operation If the adjustment in the AutoCal reaches a preset maximum value or if the AutoCal correction fails, for example, because of unstable conditions, a new AutoCal will take place later (if the automatic AutoCal is turned on). Automatic AutoCal As a default, the automatic AutoCal in DMT340 is turned on. In this mode, the calibration takes place automatically if the dewpoint or temperature changes significantly, typically more than 10 °C. However, if there are no changes in the conditions, the AutoCal will take place repeatedly after one hour from the last AutoCal. Manual AutoCal To check that AutoCal has taken place for obtaining the most accurate measurement in a very dry environment, you can perform Autocal manually before measuring as follows: Open the MAIN MENU by pressing any of the arrow buttons. Select Measuring, press the > arrow button. Select Manual AutoCal, press the arrow button. Press START to start AutoCal. If the AutoCal conditions are not fulfilled, a note appears on the display informing that the calibration cannot be made.

AutoCal in progress... # CANCEL D0E-0T Figure 70 Following AutoCal on the Display

5. Press EXIT to return to the basic display.

Y ou can also perfom Autocal manually by using the pressure set and check buttons on the motherboard. By pressing both buttons simultaneously, A utocal is performed, see Figure 64 on page 102. Sensor Purge Sensor Purge is a feature available for the DMT340 M-sensor. The Purge should be carried out to achieve the shortest response times and the best long-term stability.

USER'S GUIDE Sensor Purge is an automatic procedure, in which the sensor is dried. Thus, the sensor will response very fast when installing the probe from an ambient to a dry gas. This will also ensure together with AutoCal the best measurement accuracy and long-term stability. As a default, the interval Purge and power-up Purge are tumed on automatically in DMT340. It is recommended not to turn them off. The automatic sensor Purge can also be started manually. If enabled, power- up Purge will start always about 10 seconds after reset. If the power is continuously turned on in DMT340, the automatic sensor Purge will be performed at an interval of 24 hours. Manual Sensor Purge The Purge should be performed always before calibration (see the calibration instructions) or when there is a reason to believe that a sensor has become exposed to an interfering chemical. Open the MAIN MENU by pressing any of the arrow buttons. Select Measuring, press the arrow button. Select Purge, press the arrow button.

5. Press START to start manual Purge. Press CANCEL to interrupt

the manual sensor Purge.

6. Press EXIT to return to the basic display.

Interval Purge When the DMT340 leaves the factory the interval Purge takes place repeatedly with the time intervals set in the factory. The user can change the interval in which the purge takes place by using serial commands or with the optional display/keypad. This can be needed if the measuring environment contains high concentrations of interfering chemicals. M210704EN-E

Operation Power-up Purge Purge can be set to start within 10 seconds from the power-up of the device. This function can be enabled by using the serial line or the display/keypad. PURGE Interval: 24h # Manual Purge

Figure72 Activating Start-up Purge

1. Press ON to activate Start-up Purge. Pressing OFF disables the

2. Press EXIT to retum to the basic display.

PUR With the PUR command you can enable or disable interval and power-up Purge and set the interval for interval purge. The default purge interval is 24 hours. Itis not recommended to change these settings. Type PUR and press ENTER to proceed. Example: >pur Interval Purge : OFF ? Interval : 1440 min ? Power-up Purge : OFF ? Duration : 60 s ? Settling : 2480 s ? Temperature : 180 'C ? Temp. diff. : 0.5 'C? Trigger Purge : OFF ? RH trigger : 0 RH ?

NOTE When Purge in power up is enabled, wait about 5 min after power up before taking measurements. The output channels are locked for the first operation minutes to the initial measured values. VAISALA PURGE Use the command PURGE to start the manual Purge. Enter PURGE to start Purge immediately.

USER'S GUIDE Example: >purge Purge started, press any key to abort.

The prompt ‘> appears when the heating period is over. However, the transmitter outputs are locked to values measured before purge until the settling time is over. Sensor Warming DMT340 contains a sensor warming function, that is, when humidity reaches a set limit (default: 70%RH), sensor warming operation is activated automatically. Sensor warming continues as long as the humidity is above that limit. When the warming starts, the sensor operation indicator is displayed on the optional display and relays configured as "online status" (if any) will be released. Warming does not affect Tor, T'ayratm, Ta, Ta atm, X, H20 and Pw quantities, all others will be frozen. M210704EN-E

Chapter 5 Maintenance

MAINTENANCE Periodic Maintenance Cleaning Clean the transmitter enclosure with a soft, lint-free cloth moistened with mild detergent. Changing the Probe Filter Tum the filter counter-clockwise to loosen it.

2. Remove the filter from the probe. Be careful not to touch the sensor

with the filter. Without the filter in place, the sensor is easily damaged - handle the probe carefully.

3. Install a new filter on the probe. When using the stainless steel

filter, take care to tighten the filter properly (recommended force 5 Nm). New filters can be ordered from V aisala, see A vailable Options and Accessories Table 32 on page 158. Calibration and Adjustment The DMT340 is fully calibrated and adjusted as shipped from factory. Typical calibration interval is two years. Depending on the application it may be good to make more frequent checks. Calibration must be done always when there is a reason to believe that the device is not within the accuracy specifications. Itis recommended that calibration and adjustment should be carried out in Vaisala Service Centers (contact information on page 139). VAISALA 135

USER'S GUIDE Error States In error state the quantity is not measured and the output is shown as follows: analog channel outputs 0 mA or 0 V (you can use the serial line command AERR or display/keypad to change this fault indication value, see section Analog Output Fault Indication Setting on page 119) the serial port outputs stars (***) the cover LED is blinking optional display: error indicator is lit. The error indicator disappears when the error state is over and you have checked the error message. Press the INFO button to display the error message. Lac & ERROR {currently present) Temperature sensor short circuit. (4) nr: GRAPH MORE JE 0706-017 Figure73 Error Indicator and Error Message Number refers to Figure 73 above: 1 = ErorIndicator Y ou can also check the error message via the serial interface by using the command ERRS. In case of constant error, please contact the Vaisala Service Centers (contact information on page 139). 136 M210704EN-E

Chapters _ VAISALA Table 30 __ Maintenance Error Messages Error Code Error Message Action 0 Humidity sensor Check the integrity of the humidity probe and the measurement malfunction. | probe cable. Clean the probe from dirt, water, ice or other contaminants. 1 Humidity sensor short Check the integrity of the humidity probe and the circuit probe cable. Clean the probe from dirt, water, ice or other contaminants. 2 Humidity sensor open Check the integrity of the humidity probe and the circuit probe cable. 3 Temperature sensor open | Check the integrity of the humidity probe and the circuit. probe cable. 4 Temperature sensor short | Check the integrity of the humidity probe and the circuit. probe cable. Clean the probe from dirt water, ice or other contaminants. 5 Temperature Check the integrity of the humidity probe and the measurement malfunction | probe cable. Clean the probe from dirt water, ice or other contaminants. 6 Temperature sensor Check the integrity of the humidity probe and the current leak. probe cables. Clean the probes from dirt, water, ice or other contaminants. 7 Internal ADC read error Internal transmitter failure. Remove the transmitter and return the faulty unit to Vaisala Service. 9 Checksum error in the Internal transmitter failure. Remove the internal configuration transmitter and return the faulty unit to Vaisala memory Service. 10 Internal EEPROM read Internal transmitter failure. Remove the error transmitter and return the faulty unit to Vaisala Service. 11 Internal EEPROM write Internal transmitter failure. Remove the error transmitter and return the faulty unit to Vaisala Service.

12. 13 Add-on module 1 (or 2) Turn off the power and check the module

connection failure connection. Turn on the power. 14 Device internal Ensure that the operating temperature is within temperature outofrange |the valid range. 15 Operating voltage outof |Ensure thatthe operating voltage is within the range valid range. 18 Internal ADC reference Internal transmitter failure. Remove the voltage out of range transmitter and return the faulty unit to Vaisala Service. 19 Internal analog output Internal transmitter failure. Remove the reference voltage out of transmitter and return the faulty unit to Vaisala range Service. 20 … 23 Configuration switches for | Check and re-setthe switches, see Analog analog output 1/2/3 set Output Settings on page 114. incorrectly 24... 25 EEPROM failure on add- |Disconnect the power and check the analog on module 1 (or 2) output module connection. 26 Communication module Disconnect the power and change the installed in incorrect add- |communication module to another module slot. on module slot 28 … 29 Unknown/incompatible Ensure that the module is compatible with the module installed in add-on module slot 1(or 2) DMT340.

USER'S GUIDE Error Code |Error Message Action 30 Internal analog voltage out | Internal transmitter failure. Remove the of range transmitter and return the faulty unit to Vaisala Service. 31 Internal system voltage Internal transmitter failure. Remove the out of range transmitter and return the faulty unit to Vaisala Service. Technical Support For technical questions, contact the V aisala technical support: E-mail helpdesk@ vaisala.com Fax +358 9 8949 2790 Return Instructions If the product needs repair, please follow the instructions below to speed up the process and to avoid extra costs to you.

The latest contact information and instructions are available from www.vaisala.com. À ddresses of the Service Centers are provided in section V'aisala Service Centers on page 139. Please have the following information on hand: serial number of the unit -_ date and place of purchase or last calibration - description of the fault -_ circumstances in which the fault occurs/occurred -_ name and contact information of a technically competent person who can provide further information on the problem

3. Pack the faulty product in a strong box of adequate size, with

proper cushioning material to avoid damage.

4. Include the information specified in step 2 in the box with the

faulty product. Also include a detailed return address.

5. Ship the box to the address specified by your V'aisala contact.

Chapters _ __ Maintenance Vaisala Service Centers Vaisala Service Centers perform calibrations and adjustments as well as repair and spare part services. See contact information below. Vaisala Service Centers also offer accredited calibrations, maintenance contracts, and a calibration reminder program. Do not hesitate to contact them to get further information.

Calibration and adjustment

CALIBRATION AND ADJ USTMENT

Calibration DMT340 is fully calibrated and adjusted as shipped from the factory. The typical calibration interval is two years. Calibration must always be done when there is reason to believe that the device is not within the accuracy specifications. Itis recommended that the device should be sent toV aisala Service Centers for calibration and adjustment, see contact information on page

(Vaisala hand-held dewpoint meter DM70 can also be used). User Calibration and Adjustment When adjusting DMT340, the reading is changed to correspond to the reference value. After the adjustment, the original calibration certificate shipped with the product is no longer valid. NOTE Dewpoint calibration should be carried out in Vaisala or in other laboratory conditions. VAISALA The reference condition of the dewpoint must be traceable to the appropriate standards. The user adjustment requires a stable humidity generator capable of producing the required humidities and a calibrated reference dewpoint meter. For adjustment, the probe and the reference dewpoint meter are connected to the humidity generator output, the reference condition is adjusted and let to stabilize. A fter the probe and the reference dewpoint meter are stabilized, the DMT340 reading is adjusted to correspond the reference value. For the adjustment of DMT340 equipped with DRY CA P°180M-sensor, the reference low dewpoint temperature should be between -57 °C and - 67 °C (-70.6 °F … -88.6 °F) in the gas temperature of approx. +20 °C.

USER'S GUIDE To ensure the correctness of the adjustment, the reference dewpoint meter must be calibrated at a recognized laboratory with a known uncertainty and traceability to national or international standards. To see when the adjustment was made last, select A djustment information (with keypad INFO button in the main view, or with serial commands ? and CDATE) or check the date from the Device information. See section Device Information on page 107. Opening and Closing the Adjustment Mode Open the transmitter cover. The buttons needed in the adjustment are on the left-hand side of the motherboard, see Figure 2 on page 22. Press the ADJ button to enable the adjustment mode. The indicator led indicates the adjustment availability. Table 31 Indicator Led Functions Indicator Led Function Description LED off adjustment locked LED on adjustment available LED blinking evenly measurement not stabilized LED blinking with short pulses performing P urge/Autocal Press the ADJ key again to disable the adjustment mode. NOTE Fixed pressure compensation of 1013.25 hPa is used when in adjustment mode. À djustments should be performed at ambient pressures. M210704EN-E

VAISALA Calibration and adjustment Adjustment Information These data are shown on the device information. (see section Device Information on page 107. Use the display/keypad to feed the adjustment information.

1. If you are notin the adjustment menu, press the ADJ button on the

motherboard to open the ADJUSTMENT MENU.

2. Pressthe b arrow button to select Adjustment info.

Select Date, press SET. Enter the date by using the arrow buttons. Press OK.

4. Select i, press CHANGE. Enter information text including 17

characters at maximum by using the arrow buttons. Press OK.

5. Press EXIT to return to the basic display.

CTEXT and CDATE Use the serial line command CTEXT to enter text in to the adjustment information field. First press the adjustment button on the motherboard inside the transmitter. Example: >ctext Adjust. info : (not set) ? -602C IKÿ

Use the command CDATE to input date to the adjustment information field. Set the adjustment date in format Y YYY-MM-DD. Example: >cdate Adjust. date : (not set) ? 2004-05-21

Press the adjustment button on the motherboard inside the transmitter to disable the adjustment function.

USER'S GUIDE Adjusting Dewpoint Ty Before adjusting dewpoint, first carry out the two-point relative humidity adjustment, which will ensure the basic adjustment level. After that, continue with the actual Tar adjustment. Two-point Relative Humidity Adjustment using Display/Keypad For DMT340 M-sensor, the humidity references of 0 % (for example Nitrogen) and 10 … 20 % are required. NOTE For the DMT340 M-sensor both reference humidities must be below 20% RH. To make the adjustment, follow the instructions below. Use preferably the display keypad and let the display information guide you through the two-point RH adjustment process.

1. Press the A djustment button ADJ on the motherboard inside the

transmitter to enable adjustments.

2. Select Adjust Td measurement, press the arrow button.

3. Select 2-point RH adjustment, press Start. Press OK to perform

purge of point 1. POINT 1 OF 2 Put the sensor in the reference humidity 1. {Reference hunidities must be +0 $RH and

POINT 1 OF 2 Purge will be performed next. XRH.) on06-18 Figure 74 Starting the Adjustment

VAISALA Calibration and adjustment Press GRA PH to follow the RH and T stabilization on graphical display: Lé RHtrend, - latest 3 hours

BH? 2.8h7 2h? 1h? 1h? 08h? 706-020 Figure 76 Following the RH Trend on Graphical Display Follow the instructions on the display. Use the arrow buttons to enter the actual humidity of the reference used. POINT 1 OF 2 RH measured: 11.09 $ T measured: 25.66 °C RH actual: 4011.09 $ Enter the actual humidity of the reference used, or CANCEL 0706-021 Figure 77 Ending Adjustment of Point 1 Continue adjustment of point 2 as instructed by the display:

POINT 1 0F 2 POINT 2 0F 2

j Put the sensor in the Adjustnent data saved reference humidity 2. Proceeding to next Reference humidities adjustment point. must be 0 $RH and

D OK 1] 706-022 Figure 78 Proceeding to Adjustment of Point 2 Follow the purge progress and wait for stabilization of Point 2 as in Figure 75 on page 144. Press READY when stabilized. Use the arrow buttons to enter the actual humidity of the reference used. Follow the instructions on the display to complete the RH adjustment.

POINT 2 0F 2 POINT 2 OF 2

All required data saved RH adjustment for adjustment. performed successfully. Do you really want to i ji perform the adjustment? Continue by partons YES Cono ] C_ ok 0706-023 Figure 79 Completing Adjustment of Point 2

USER'S GUIDE Two-point Relative Humidity Adjustment Using Serial Line Perform purge before adjustment. Use the PURGE command. See section PURGE on page 133. Then press adjustment button on the motherboard inside the transmitter to enable adjustments Perform adjustment with the FCRH command. Wait at least 1 hour before adjusting each point. FCRH Example: >fcrh RH : 3.90 Refi ? 0 Press any key when ready ... RH : 3.90 Ref2 ? 15

One-point Dewpoint Adjustment Using Display/Keypad Before proceeding with the T 4 adjustment you must perform the RH adjustment. For DMT 340 M-sensor, the reference temperature of the dewpoint should be -57 C . -67 © (-70.6 °F … -88.6 F). Use preferably the display/keypad to perform one-point dewpoint T &r adjustment. To adjust the dewpoint, follow the instructions below:

1. Press the ADJ button on the motherboard to open the

2. Press the b arrow button to select Adjust Ta measurement.

3. Select by pressing 1-point T4 adjustment. Press START to start

4. Leave the sensor to stabilize for at least 5 hours. Follow the

Chapter 6 2 Calibration and adjustment

Tor Elapsed time: 0:03:39 Put the sensor in dewpoint -60 °C. Let the readnss stabilize at least 5 DOS Figure 80 Following Stabilization

5. Purge will be performed next. Follow the purge progress on the

6. Letthe sensor stabilize for at least 1 hour after the purge before

proceeding with the adjustment. Press READY when stabilized. POINT 1 OF 1 Tor measured: - Tor actual: -058.9Ù °C Enter the actual dewpoint temperature of the reference us. LL _] a 0706025 Figure 81 Proceeding with T 4; Adjustment

7. Enter the actual reference frostpoint temperature.

The transmitter performs T 4 adjustment. This may take up to one minute. POINT 1 OF 1 1-point Tes adjustment in progress. D706-026 Figure 82 CompletingT 4r Adjustment

9. After adjustment wait for sensor to cool down which will take 2

minutes at the maximum. The adjustment is now completed. NOTE Several AutoCals can be necessary after this adjustment has been performed until the transmitter reaches full accuracy. VAISALA 147

USER'S GUIDE One-point Dewpoint Adjustment Using Serial Line

1. Letthe sensor stabilize for at least 5 hours.

2. Use the command PURGE to start the manual Purge. See section

3. Wait at least 1 hour. Then press adjustment button on the

motherboard inside the transmitter to enable adjustments.

4. Usethe IKQ command to perform the adjustment.

IK9 Example: >ik0 Tf : -19.74 'C Ref ? -60 Wait for AutoCal data...0K

5. Press the adjustment button on the motherboard inside the

transmitter to disable adjustments. NOTE Several AutoCals can be necessary after this adjustment has been performed until the transmitter reaches full accuracy. M210704EN-E

Calibration and adjustment Adjusting Temperature Adjusting Temperature Using Display/Keypad Use preferably the display/keypad to adjust the temperature.

VAISALA Press the ADJ button on the motherboard to open the ADJUSTMENT MENU Press the > arrow button to select Adjust T measurement. Select by pressing 1-point or 2-point adjustment. Press START to start adjusting. Remove the filter from the probe and insert the probe into a reference temperature. Wait at least 30 minutes for the sensor to stabilize. Follow the stabilization from the GRAPH display. Press READY when stabilized. Enter the reference temperature by using the arrow buttons. When carrying out the 2-point adjustment proceed to the next adjustment point and carry out the procedure as described in the previous item. Note that the difference between the two temperature references must be at least 30 2C. Press OK. Press YES to confirm the adjustment. Press OK to return to the adjustment menu Press EXIT to return to the basic display.

USER'S GUIDE Adjusting Temperature Using Serial Line

Use the serial line command CT to adjust the temperature.

1. Press the ADJ button on the motherboard to open the adjustment

2. Remove the probe filter and insert the probe into the reference

Type C and press ENTER to check if the reading is stabilized

4. Letthe reading stabilize, enter the reference temperature after the

question mark and press ENTER three times. When having another reference temperature (2-point calibration) press ENTER twice and insert the probe to the second reference. When the reading is stabilized, enter the second reference temperature after the question mark and press ENTER. Please, note that the difference between the two temperature references must be at least 30 °C. Example (1-point adjustment): >ct T 16.06 Refl ? c T 16.06 Refl ? c T 16.06 Refl ? c T 16.06 Refl ? c T 16.06 Refl ? c T : 16.06 Refl ? 16.0 Press any key when ready ... T : 16.06 Ref2 ?

OK indicates that the calibration has succeeded.

5. Press the ADJ button on the motherboard to close the adjustment

6. Take the probe out of the reference conditions and replace the

Calibration and adjustment Adjusting Analog Outputs In the analog output calibration the analog output is forced to the following values: current output = 2 mA and 18 mA voltage output = 10 % and 90 % of the range Connect DMT340 to a calibrated current/voltage meter in order to measure either current or voltage depending on the selected output type. Use the display/keypad or the serial line to do this. Adjusting Analog Outputs using Display/Keypad

VAISALA Press the ADJ button on the motherboard to open the ADJUSTMENT MENU. Press the > arrow button to select Adjust analog outputs. Select the output to be adjusted Adjust analog output 1/2/3, press START. Measure the first analog output value with a multimeter. Enter the measured value by using the arrow buttons. Press OK. Measure the second analog output value with a multimeter. Enter the measured value by using the arrow buttons. Press OK. Press OK to return to the adjustment menu. Press EXIT to close the adjustment and to return to the basic display.

USER'S GUIDE Adjusting Analog Outputs using Serial Line ACAL Use the serial line to perform the analog output adjustment. Use the ACAL command and enter the multimeter reading. Example (current outputs): >ACAL Ch1 Il (mA)? 2.046 Ch1 12 (mA)? 18.087 Ch2 Il (mA)? 2.036 Ch2 12 (mA)? 18.071

Press the adjustment button on the motherboard inside the transmitter again to disable the adjustment function. 152 M210704EN-E

Response time 63% [90%] at +20°C gas temperature Flow rate 1 l/min and 1 bar pressure -60->-20 °C Td(-76->-4 °F Td) -20->-60 °C Td(-4->-76 °F Td) Temperature Measurement range Accuracy Temperature sensor Relative humidity Measurement range Accuracy (RH <10 %RH, at +20 °C) ppmv (dry) Measurement range (typical) Accuracy (at +20 °C, 1 bar) 5s [10s] 45s [10min]

0. +80 °C (+32... +176 °F)

+0.2°C at room temperature Pt100 IEC 751 1/3 class B 0..70%RH

40.004 RH + 20% of reading

1 ppm + 20% of reading Other measurement parameters available (depends on model) mixing ratio, absolute humidity, pressure dewpoint calculated to 1 bar, temperature difference (T-Td), water vapor pressure Operating Environment Mechanical durability for transmitter body with display Storage temperature range Pressure and temperature range for probes Measured gases Complies with EMC standard EN61326-1:1997 + Industrial Environment Inputs and Outputs Operating voltage with optional power supply module Default start-up time after sensor Purge and Autocal Start-up time after power-up Power consumption @ 20 °C (Uin 24VDC) RS-232 Uout 2 x 0. 1V / 0... 5V / 0... 10V Jout 2 x 0 .… 20 mA display and backlight during sensor purge Analog outputs (2 standard, 3rd optional) current output voltage output Accuracy of analog outputs at 20 °C Temperature dependence of the analog outputs External loads current ouputs

• Mechanical durability Technical Data

LCD with backlight, graphic trend display English, French, Spanish, German, Japanese, Russian, Swedish, Finnish, Chinese M20x1.5 For cable diameter 8... 11mm/0.31..0.43" 1/2"NPT M12 series 8- pin (male) with plug (female) with 5 m/

with plug (female) with screw terminals

Storage temperature range 3-pole screw terminal Max wire size Relay Module Operating temperature range Operating pressure range Power consumption @24 V Contacts SPDT (change over), for example, Contact arrangement Form C Imax Imax Safety standard for the relay component Storage temperature range 3-pole screw terminal / relay Max wire size 100 … 240 VAC 50/60 Hz screw terminals for

better than +2 min/year 7 years 5 years

TRANSMITTER MOUNTING ACCESSORIES

Wall Mounting Kit 214829 Installation Kit for Pole or Pipeline 215108 Rain Shield with Installation Kit 215109 DIN Rail Clips with Installation Plate 215094 Panel Mounting frame 216038

PROBE MOUNTING ACCESSORIES

Sampling Cell with IS01/2" Female Connectors DMT242SC Sampling Cell with 1S01/2" Swagelok Connectors | DMT242SC2 Installation F lange ISO 1/2 DM240FA DMT342 Sampling Cell for Probe with Flange HMP302SC 5 pcs O-ring Set Size 14.1x1.6 216026 DMT344 Fitting Body M22x1.5 17223SP Fitting Body NPT1/2 17225SP DMT347 Swagelok for 12mm Probe 3/8"1SO Thread SWG121S038 Swagelok for 12mm Probe 1/2"1SO Thread SWG121S012 Swagelok for 12mm Probe 1/2" NPT Thread SWG12NPT12 DMT348 Fitting Body 1SO1/2 Solid Structure (withoutleak |DRW212076SP screw) Fitting Body NPT1/2 Solid Structure (without leak |NPTFITBODASP screw) Fitting Body Set1SO 1/2 (with leak screw) ISOFITBODASP Fitting Body Set (ISO 1/2 + NPT 1/2) THREADSETASP Ball Valve 1S01/2 with Welding J oint BALLVALVE-1 Manual Press HM36854SP Leaking Screw with Allen Key 216027 Thread Adapter ISO1/2 to NPT1/2 210662SP Plug Kit (ISO 1/2) 218773 CONNECTION CABLES Serial Interface Cable 1944677 USB-R] 45 Serial Interface Cable 219685 M170 Connection Cable with RJ 45 Connector 211339 OUTPUT CABLES for 8-pin connector Connection Cable 5m 8-pin M12 Female, Black [212142 Female Connector 8-pin M12 with Screw 212416 Terminals _ M210704EN-E

Chapter 7 Technical Data

Chapter 7 Technical Data

£ 2 2 S X = — [e] S 2

F S ä 41(161) À Hex nut 24mm = _ R1/2"1S07/1

Appendix À Calculation Formulas APPENDIX À CALCULATION FORMULAS This A ppendix contains the formulas used for the calculated output quantities. The DMT340 series transmitters measure relative humidity and temperature. From these values dewpoint, mixing ratio, absolute humidity and enthalpy in normal pressure are calculated using the following equations: Dewpoint: Ta = n

P,, is the water vapor pressure. The parameters A, m, and Tn depend on temperature according to the following table: t A m Tn < °C * 6.1134 9.7911 273.47

50 … 100 °C 5.9987 73313 229.1 100 … 150 °C 5.8493 72756 225.0 150 … 180 °C 6.2301 7.3033 230.0

1) Used for frostpoint calculation if the dewpoint is negative

Enthalpy: h=(T -273.15)-(1.01+0.00189: x) +2.5-x (© The water vapour saturation pressure P,, is calculated by using two equations (5 and 6): 3 : @=T-) CT i=0 where: T = temperature in K Ci = coefficients Co = 04931358 C1 = -0.46094296 * 10-2 C) = 0.13746454 * 10-4 C3 = -0.12743214* 1077 3 : InP,,=) b© +b,n® i=-1 where: bj = coefficients b.1 = -0.58002206 * 104 bp = 0.13914993 * 101 b] = -0.48640239 * 10-1 b) = 0.41764768 * 10"4 b3 = -0.14452093 * 10-7 by = 6.5459673 (5) M210704EN-E

Appendix A VAISALA Calculation Formulas The water vapor pressure is calculated using: P,=RH Ps . “77 100 Parts per million by volume is calculated using: P (8)