VPT100 - Anemometer VOLTCRAFT - Free user manual and instructions

USER MANUAL VPT100 VOLTCRAFT

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The pitot tube anemometer is designed for precise differential pressure measurement. Furthermore, the pitot tube anemometer records ow velocities of air and gases and ambience temperatures. In combination with a pitot tube, it is also possible to measure high air velocities. The ow supply of the pitot tube anemometer is performed via a 9-Volt block battery (E-Block). Operation of the pitot tube anemometer is possible both indoors and outdoors, but not in potentially explosive environments. The device should not be exposed to extreme temperatures, direct solar irradiation, high moisture or wetness. The pitot tube anemometer is not suitable for aggressive environments. Read these operating instructions thoroughly and carefully, they contain a lot of important information for commissioning and opera- tion. Always observe the safety information! Any use other than that described above damages the product. Moreover, this is linked to dangers such as short circuit, re, electric shock, etc. No part of the product must be modied or converted!22

• 2 connection hoses (length: 850 mm)

• Mini-USB-/USB-cable to connect to a PC

• Operating instructions

• Large LC display with backlighting

• Integrated time measurement clock delivers relative time stamps for the values MAX, MIN and AVG

• Measurement of barometric pressure, air velocity and air ow with zero reconciliation function

• Display of barometric pressure, air velocity, air ow and ambience temperature

• Mini-USB interface for transfer of the measured values to a PC with USB connection. The connection between the measuring device and PC is established with the enclosed mini-USB-/USB-cable.

• CD-ROM with PC software “Manometer & Flowmeter” for further processing and visualisation of the measured values on the computer. System requirements: PC with Pentium 90 MHz or higher, 32 MB RAM, 7 MB hard disc memory, Win2000/XP/Vista

• Warning message at low battery and battery savings mode with automatic deactivation (sleep mode)

5. eXPLanatIon of SymboLS

The lightning-bolt symbol in a triangle indicates a health hazard, e.g. danger of an electrical shock. The exclamation mark in a triangle indicates important notes in these operating instructions that must be observed strictly. The “arrow” symbol informs you that there are special tips and hints concerning operation.23

• The unauthorized conversion and/or modication of the product is inadmissible for safety and approval reasons (CE).

• The product is not a toy. Children cannot judge the dangers involved when handling electrical devices.

• If the product is brought from a cold into a warm room (e.g. in transport), it is possible that condensation develops. Therefore, allow the product to reach room temperature before operating it.

• Operate the product only via the included battery or another equal model (9 V E-block). Replace empty batteries by new ones to avoid damage from incorrect measured values.

• Regular batteries must not be recharged. There is a danger of explosion if the battery is used improperly or inserted into the pitot tube anemometer. The included battery must only be replaced by a battery of the same type or an equal product. Never subject the battery to high temperatures.

• In commercial institutions, the accident prevention regulations of the Employer’s Liability Insurance Association for Electrical Systems and Operating Materials are to be observed.

• Do not leave packaging material unattended. It may become a dangerous toy for children.

• Handle the product with care. It can be damaged by impact, blows or when dropped even from a low height.

• Please observe that the thresholds in the specications must never be undercut or exceeded for the measured values.24

To switch the pitot tube anemometer on and off.

To call the minimum, maximum and average values. To return to the standard mode, keep the button pushed for 2 seconds.

Push the button “P/V/F” once to display the ow velocity. If you push the button twice, you will receive information on the scope or the diameter of the ow channel. After pushing the button „P/V/F“ three times the volume ow is displayed. Press the button again to return to the pressure display.

Push “HOLD/ZERO” once to “freeze” the value currently displayed. If you want to terminate the “HOLD” mode, push the button “HOLD/ZERO” again. To return the measuring device to zero, keep the button „HOLD/ZERO“ pushed for 2 seconds.

Push “SAVE/CLEAR” to save the currently displayed values in a data record. If you call the data record from the memory again later, you can delete it by pushing “SAVE/CLEAR”.

Push “SETUP” to switch the backlighting of the display on and off. Push “SETUP” for 3 seconds to get to the menu to change the device settings. You can leave the setting menu by keeping the “SETUP” button pushed for 3 seconds again.

Push “Unit ” to change the measuring unit for the temperature display. In the “SETUP” mode, use the button to scroll through the setting options. When calling saved data, you will get to the desired higher data record number by pushing the button several times.

This button changes the measuring unit of the second presented measured value. In the “SETUP” mode, use the button to scroll through the setting options. When calling saved data, you will get to the desired lower data record number by pushing the button several times.

Push and hold the “Avg/Rec” button for 2 seconds to call saved data records (“recall mode”). In “recall” mode, you can have the averages of the saved data output by pushing the “Avg/Rec” button. Push “Avg/Rec” in “SETUP” mode to conrm a selection. Number of the Saved Data Records for the Currently Saved Measuring Parameters Indicators for REC, MIN, MAX and AVG Main Display Second Display (Temperature and Time) “+”-Input “-”-Input Angled Pitot Tube Display of the Time Unit Active Parameters (Pressure, Temperature, Flow Velocity, Volume Flow) Measuring Unit Pressure Auto Power Off Symbol (Automatic Deactivation Active) Display for the Active “HOLD” Mode25

1. Display of the Time Unit: (“Hours: Minutes” or “Minutes: Seconds”)

5. Measuring unites of pressure

6. Data interface (PC) – displayed when the measuring device is connected to the computer by USB cable

7. Auto power off icon (automatic deactivation)

8. Flow channel shape (rectangular or round)

9. Battery: battery level display

10. “HOLD” notes that the data display is currently “frozen”

11. Dimensions of the ow channel: “H” = Height, “W” = Width, “D” = Diameter

12. “SETUP” notes that the setup mode with the setting options is currently active

13. “DELETE” shows that one or several data records are deleted from memory

14. Memory slot number

15. “MEM” indicates that memory access is taking place

16. Indicators for REC, MIN, MAX and AVG

17. Measuring units for large temperature display (main display)

In the setup, you can dene, e.g., the shape of the ow channel and the associated parameters. Further settings refer to the auto power off function and the settings for MAX, MIN and AVG. You can also delete saved data via the setup.

Measuring units for channel dimensions Channel shape and parameters Unit Duct Shape inch/cm Specied area for ow measurements Auto-Power-off (Automatic Deactivation) SLEEP Auto off/on Menu setting ENU 1, 2, 3 Delete Memory Mem clear Yes/No

Push the button “SETUP” for 2 seconds to call or terminate the setup menu. If the setup mode is active, the word “SETUP” appears in the lower area of the display.

Push “Unit ” or “Unit ”, to scroll to the setup option that you want to change. Push “Avg/Rec” to conrm your selection. Push “Unit ” or “Unit ” repeatedly until the desired value for your setting is displayed. Push “Avg/Rec” to conrm your selection and save the new settings. The setup can be called in mode “MAX MIN/AVG”.

In setup mode, push “Unit ” or “Unit ”, until “unit” appears in the display. Push “Avg/Rec” to conrm your selection. Select the measuring unit “in” (inch) or “cm” by pushing “Unit ” or “Unit ” until the desired setting appears in the display. Push “Avg/Rec” to conrm and save your selection.27

In setup mode, push “Unit ” or “Unit ”, until “duct shape” appears in the lower area of the display. Push “Avg/Rec” to conform your selection. Use the buttons “Unit ” or “Unit ” to select the round or square icon for a rectangular or round ow channel. Push “Avg/Rec” to conform your selection.

If the ow channel is rectangular, the display rst shows “W=” and a number that indicates the width of the channel in the selected measuring units. Display “DECI”: Push “Unit ” or “Unit ”, to determine the position of the decimal point. Push “Save/Clear” to switch between decimal points – the currently selected number ashes. “Unit ” or “Unit ” can now be used to set the individual numbers according to your wishes (0 … 9). Push “Avg/Rec” to conform your selection. The display now switches to “H=” and shows the height of the channel in the desired measur- ing unit. Display “DECI”: Push the “Unit ” or “Unit ”, to determine the position of the decimal point. Push “Save/Clear” to switch between decimal points – the currently selected number ashes. “Unit ” or “Unit ” now can be used to set the individual numbers according to your wishes (0 … 9). Push “Avg/Rec” to conrm your selection and save the settings.28

If you have selected a round ow channel, e.g. a pipe, the display shows “D=” for the diameter of the channel. Push the “Unit ” or “Unit ”, to determine the position of the decimal point. Push “Save/Clear” to switch between decimal points – the currently selected number ashes. “Unit ” or “Unit ” now can be used to set the individual numbers according to your wishes (0 … 9). Push “Avg/Rec” to conrm your selection and safe the settings.

The device has a battery saving function and switches off automatically if you do not operate any button for 20 minutes. To switch the auto power-off function on or off, switch to setup mode. Push “Unit ” or “Unit ”, to scroll to the screen with the settings for “SLEEP”. Conrm the selection by pressing the “Avg/Rec.” button. Use “Unit ” or “Unit ” to select between the options “On” and “OFF”. “On” switches on the auto power-off function, “off” deacti- vates it. Push “Avg/Rec” to conrm your selection and safe the settings.29

Use the buttons “Unit ” or “Unit ” in setup mode to scroll to the menu item “type”. Push “Avg/Rec” to conform your selection. The display shows either “1”, “2” or “3”: 1: The display shows pressure and ow velocity 2: The display shows ow velocity and volume ow 3: The display shows pressure, ow velocity and volume ow Select the button “Unit ” or “Unit ” to display the desired option “1”, “2” or “3” and conrm your selection by pushing “Avg/Rec”.

Use the buttons “Unit ” or “Unit ” in setup mode to scroll to the menu item “ALL”. Push “Avg/Rec” to conform your selection. Push “Save/Clear” to switch between the following four deletion options: PRESS VEL FLOW: Deletes all saved pressures, ow velocities and volume ows PRESS: Deletes all saved pressure data VEL: Deletes all saved ow velocity data FLOW: Deletes all saved volume ow data To delete, use the buttons “Unit ” or “Unit ” to switch between the options “YES” (delete) and “no” (do not delete). Conrm your selection by pressing “Avg/Rec.”.30

10. meaSure PreSSure

The main display (3) on the display shows the manometer pressure or the differential pressure up to 5,000 Pa. You can choose between the ve measuring units psi, mbar, Pa, inH

O for the display. Push “P/V/F” once to switch to the pressure mode (PRESS). Push the button “Unit ” several times if required to select the desired measuring unit. Connect a hose to the “+” input of the pitot tube anemometer and leave the “-” input open. The device registers the ambience conditions via the hose opening. Push and hold the button “Hold/Zero” for 2 seconds to perform a zero reconciliation. Place the open end of the hose in another environment than the anemometer. The anemometer now shows the pressure difference between the “+” input (ambience conditions at the hose end) and the “-” input (reference ambience conditions at the anemometer). "+"-Input31

11. meaSure fLow SPeed

The anemometer measures ow velocities and volume ows based on the following standard conditions: 21.1 °C ambience temperature, 1,013 mbar barometric pressure. The device has no automatic temperature compensation. The main indication (3) of the display shows the ow velocity. It can be presented in ve different measuring units: m/s, ft/min, km/h, mph, knots. Push “P/V/F” twice to switch to the ow mode (VEL). Push the button “Unit “ several times if required to select the desired measuring unit. Connect the two hoses with the anemometer and the pitot tube as shown in the gure. The “+” input of the pitot tube anemometer is connected to the overall total pressure connection of the pitot tube by the white hose. Connect the “-” input of the measuring device to the connection for the static pressure at the pitot tube via the black hose. Push and hold the button “Hold/Zero” for 2 seconds to perform a zero reconciliation. For the most precise measurement possible, hold the opening of the pitot tube as precisely against the ow direction as possible – the deviation from the ow direction should not be larger than ± 10°. If the output measured value is negative or if you receive an error message (“Error”), check if the two hoses are correctly connected to the anemometer and to the pitot tube. "+"-Input"-"-Input32

Push “P/V/F” three times to switch to the volume ow mode (FLOW). Push the button “Unit ” several times if required and then select the desired measuring unit. The anemometer display shows the saved form of the ow channel (rectangular or round) with the associated dimensions. If you use any other ow channel for the current measurements than the one that has been saved, you have to re-dene the channel data in the setup. Push the “setup” button for more than 3 seconds and make the new settings as described in chapter

The functions “Hold”, “Save”, “MIN/MAX/AVG”, “Zero” and “Setup” cannot be used while measuring pressure, ow speed or volume ow.

The current environmental temperature is displayed in the second display (20). The button “Unit ” switches between the measur- ing units °C and °F.

Push “HOLD/ZERO” once to “freeze” the value currently displayed. To deactivate the “HOLD” function again, push “HOLD/ZERO” again.

Push the button “MAX/MIN”, to browse through the min, max and average values. Additionally, either the elapsed time since calling of the “MAX/MIN/AVG” function or the time at which a maximum or minimum value was measured is displayed. Push the “P/V/F” to display the maximum, minimum and average values for pressure, ow velocity and volume ows. Push the button “MAX/MIN” for 2 seconds to leave the “MAX/MIN”AVG” mode again.

Use the anemometer to save the measuring data for pressure, ow velocity and volume ows separately in up to 99 data records each. To save a data record push the button “SAVE/CLEAR” during the measuring process. If all 99 memory slots are assigned, you cannot deposit any further data records. Instead, the display shows the message “FU” (FULL: memory full) when you push the “SAVE/CLEAR” button. To clear memory for new measured data, proceed as described below in chapter 18 .33

To call saved data records in the corresponding operating mode (P = pressure, V = ow speed, F = volume ow), push the button “P/V/F”. Push and hold the “Avg/Rec” button for 2 seconds to display saved data records. The last data record saved appears in the display rst. Push the buttons “Unit ” or “Unit ”, to browse the saved data records. Push “Avg/Rec” to have the average value of all saved measured values displayed in the selected operating mode. To leave the saving mode again, keep “Avg/Rec” pushed for 2 seconds again.

To delete individual saved data records in the corresponding operating mode (P = pressure, V = ow speed, F = volume ow), push the button “P/V/F”. Push and hold the “Avg/Rec” button for 2 seconds to display saved data records. The last data record saved appears on the display rst. Push the buttons “Unit ” or “Unit ”, to browse the saved data and select the desired data record. Push “SAVE/CLEAR” to delete the selected data record. This reduces the displayed number of saved data records at the bottom right of the display. To leave the saving mode again, keep “Avg/Rec” pushed again for 2 seconds. To delete all data records, proceed as described in chapter 9 item 9.9 .34

If the battery status symbol in the display shows a low battery status, you need to replace the battery of the pitot tube anemometer by a new 9 V E-block. Proceed as described in chapter 21 “Replacing batteries”. Other than that, the pitot tube anemometer is maintenance-free to you. Never take it apart. To clean the product, a dry, soft and clean cloth is sufcient. Clean the display very carefully to avoid scratches. Do not use aggressive detergents as these will cause discoloration of the casing.

The measuring device has internal diagnosis functions. In case of malfunctions, the display outputs error messages and “freezes” all buttons.

OL The pressure or ow velocity is above the measuring range. -OL The pressure is below the measuring range Error The ow velocity or volume ow is below the measuring range FU The memory is full; no further data records with measuring data can be displayed

Switch off the anemometer. Push the rear battery compartment lid of the housing down at the mark to open the battery compartment. Replace the at battery by a new 9 V E battery block (item no. 65 25 09). Slide the battery compartment cover back onto the casing until it latches.

Insert the CD-ROM included with the pitot tube anemometer into the CD-ROM drive of your Windows PC. Double-click the icon “Computer” on your desktop and then the icon of your CD-ROM drive to open the corresponding folder. You will nd an installation le with the extension “*.exe” there. Double-click the le name to start the installation process. Follow the instructions on the screen for installation. Connect the pitot tube anemometer to your PC by pushing the mini USB plug of the enclosed connection cable into the intended socket at the pitot tube anemometer. Then connect the USB plug of the cable to the USB input of your PC. For details on operation of the PC software “Manometer & Flow Meter” see the help function that is available to you in the software under the menu item “Help” (H)”.35

Electronic devices are recyclable waste and must not be disposed of in the household waste! Dispose of the product according to the applicable statutory provisions at the end of its service life. Remove any inserted battery and dispose of them separately from the product.

You as the end user are required by law (Battery Ordinance) to return all used batteries/rechargeable batteries. Disposing of them in the household waste is prohibited! Batteries/rechargeable batteries that contain any hazardous substances are labelled with the adjacent icon to indicate that disposal in domestic waste is forbidden. The descriptions for the respective heavy metal are: Cd = cadmium, Hg = mercury, Pb = lead (the names are indicated on the battery/rechargeable battery e.g. under the rubbish bin symbol shown to the left). You may return used batteries/rechargeable batteries free of charge at the ofcial collection points of your community, in our stores, or wherever batteries/rechargeable batteries are sold! You thus full your statutory obligations and contribute to the protection of the environment.

O, Pa36 Conversion of the measuring units: 1 psi * 27.68 = inH

1 psi * 6,894.6 = Pa Specications air speed

Specications temperature

• Measuring accuracy ...................................±1,0 °C ±2,0 °F

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