SD0550 - Débitmètre d'air comprimé IFM - Free user manual and instructions

Product Type	Compressed air meter (standard volume flow)
Measured Variables	Flow velocity, volumetric flow, consumed quantity, medium temperature
Output Configuration	2 outputs (OUT1, OUT2), configurable as switching or analogue
Analogue Output	4...20 mA, proportional to volumetric flow or temperature
Switching Output	Hysteresis or window function, normally open or closed
Display	4-digit alphanumeric display with 8 LED indicators
Power Supply	DC voltage (SELV/PELV) according to EN 50178
Electrical Connection	M12 connector, 4-pin
Installation	In-line pipe installation, observe flow direction arrow
Process Connection	Compressed air systems, permissible media: compressed air
Operating Pressure	Up to max. pressure of the system (not specified)
Temperature Range	Medium temperature monitoring: 0...60 °C (default display range)
Standard Conditions	Reference: 1013 hPa, 15 °C, 0% RH (DIN ISO 2533), adjustable
Low Flow Cut-off	Adjustable from 0.02 to 0.16 Nm³/h
Measured Value Damping	Adjustable damping constant (t value 63%)
Parameter Setting	Via menu with Mode/Enter and Set buttons, electronic lockable
Totalizer Function	Internal quantity meter with manual, time-controlled or external reset
Error Indication	Short circuit, overload, underload, probe error
Maintenance	Visual check of measuring probes, clean with alcoholic solution
Safety	Not medical equipment, installation by qualified personnel only
Standards	Complies with PED 97/23/EC art. 3 sec. (3), IEC 60947-5-7

Frequently Asked Questions - SD0550 IFM

What does the IFM SD0550 measure?

The IFM SD0550 measures the standard volume flow of compressed air in industrial applications. It detects four process categories: flow velocity, volumetric flow, consumed quantity, and medium temperature.

How many outputs does the SD0550 have and how can they be configured?

The device has two outputs (OUT1 and OUT2). OUT1 can be configured as a switching signal for volumetric flow limit values or as a pulse output for quantity meter. OUT2 can be configured as a switching signal for volumetric flow or temperature, or as an analogue signal (4...20 mA) for volumetric flow or temperature. Alternatively, OUT2 can be used as an input for external counter reset.

Can the SD0550 monitor temperature?

Yes, the SD0550 can monitor the medium temperature. A switching signal or analogue signal for temperature can be provided on output 2.

How do I reset the totalizer (consumed quantity)?

The totalizer can be reset in three ways: manually via the menu (set [rTo] to [rES.T]), automatically at set time intervals (set [rTo] to a time value from 1 hour to 8 weeks), or externally via a digital input signal on pin 2 (configure [OU2] as [InD] and set [DIn2] accordingly).

What power supply does the SD0550 require?

The SD0550 requires a DC voltage supply according to EN 50178 (SELV/PELV). The exact voltage range is not specified in the manual, but typical ifm devices use 18...30 V DC.

How do I set the switching points for volumetric flow monitoring?

To set switching points, go to menu level 1 and select [SP1] (upper limit) and [rP1] (lower limit) for OUT1. For OUT2, set [SEL2] to [FLOW] then adjust [SP2] and [rP2]. The switching function can be selected via [OUx] (hysteresis or window, normally open or closed).

What is the low flow cut-off (LFC) function?

The low flow cut-off suppresses small volumetric flow quantities below a set threshold. Flows below the LFC value have no effect on the display and output signals. The LFC can be set from 0.02 to 0.16 Nm³/h in steps of 0.02.

How can I change the display unit in run mode?

In run mode, briefly press the [Set] button to cycle through the available display units: volumetric flow in NI/min, Nm³/h, flow velocity in Nm/s, consumed quantity in Nm³, and medium temperature in °C. The corresponding LED indicator lights up.

How do I lock the device to prevent unintended parameter changes?

To lock the device, press and hold [Mode/Enter] + [Set] for 10 seconds in run mode. '[Loc]' will be displayed. To unlock, repeat the same procedure; '[uLoc]' will appear.

What do the error codes on the display mean?

[SC1]/[SC2] indicate a short circuit in the respective output. [OL] means measured value >120% of the measuring range final value. [UL] means measured value < -20% of the measuring range (temperature). A flashing [Err] indicates an error in the measuring probe or measured value >130% of the final value.

USER MANUAL SD0550 IFM

Operating instructions

Compressed air meter

SD0550

UK

11406628 / 00 04 / 2020

Technical line drawing of a mechanical component with no visible text or symbols

Contents

1 Preliminary note....4

1.1 Symbols used 4

2 Safety instructions ....4

3 Functions and features ....5

4 Function....5

4.1 Processing of the measured signals....5
4.2 Volumetric flow monitoring....6
4.3 Consumed quantity monitoring (totalizer function) 6

4.3.1 Consumed quantity monitoring with pulse output....7
4.3.2 Consumed quantity monitoring with preset counter 7

4.4 Temperature monitoring....7
4.5 Volumetric flow or temperature monitoring / switching function......7
4.6 Volumetric flow or temperature monitoring / analogue function......8
4.7 Setting of the standard conditions of the volume flow 9
4.8 Low flow cut-off (LFC)....9

5 Installation....10

5.1 Installation location....10
5.2 Installation conditions .... 10
5.3 Installation position 11
5.4 Installation in pipes 11

6 Electrical connection....12
7 Operating and display elements....13
8 Menu....14

8.1 Menu structure....14
8.2 Explanation of the menu....15

9 Parameter setting 16

9.1 General parameter setting....16
9.2 Settings for volumetric flow monitoring....17

9.2.1 Settings for limit value monitoring with OUT1....17
9.2.2 Settings for limit value monitoring with OUT2....18
9.2.3 Setting the analogue value for volumetric flow....18

9.3 Settings for consumed quantity monitoring 18

9.3.1 Settings for quantity monitoring via pulse output....18
9.3.2 Settings for quantity monitoring via the preset counter .....18
9.3.3 Settings for program-controlled counter reset 19
9.3.4 Deactivation of the counter reset....19
9.3.5 Counter reset using an external signal....19

9.4 Settings for temperature monitoring 19

9.4.1 Settings for limit value monitoring with OUT2....19
9.4.2 Setting the analogue value for temperature 20

9.5 User settings (optional)....20

9.5.1 Setting of the standard unit of measurement for volumetric flow.....20
9.5.2 Configuration of the standard display 20
9.5.3 Setting of measured value damping....20
9.5.4 Setting of the error behaviour of the outputs 21
9.5.5 Setting of the standard pressure to which the measured and display values for volumetric flow refer....21
9.5.6 Setting of the standard temperature to which the measured and display values for volumetric flow refer....21
9.5.7 Setting of the low flow cut-off....21

9.6 Service functions 21

9.6.1 Reading of the min/max values for the volumetric flow .....21
9.6.2 Reset of all parameters to factory setting 22

9.7 Setting of the preset counter / the pulse value (ImPS)....22

10 Operation....24

10.1 Reading of set parameters 25
10.2 Changing the display unit in the Run mode....25
10.3 Error indications....25
10.4 General operating conditions....25
11 Factory setting 26

1 Preliminary note

1.1 Symbols used

▶ Instruction

Reaction, result

[...] Designation of pushbuttons, buttons or indications

→ Cross-reference

Important note

Non-compliance can result in malfunction or interference.

Information

Supplementary note.

2 Safety instructions

This is no medical equipment!

We cannot assure permanent availability nor a safe switching-off nor a self-diagnosis function.

If necessary, this has to be ensured by the manufacturer of the machine on their own responsibility.

• The device described is a subcomponent for integration into a system.
• The manufacturer of the system is responsible for the safety of the system.
• The system manufacturer undertakes to perform a risk assessment and to create a documentation in accordance with legal and normative requirements to be provided to the operator and user of the system. This documentation must contain all necessary information and safety instructions for the operator, the user and, if applicable, for any service personnel authorised by the manufacturer of the system.
• Read this document before setting up the product and keep it during the entire service life.
• The product must be suitable for the corresponding applications and environmental conditions without any restrictions.
• Only use the product for its intended purpose (→ Functions and features).

• Only use the product for permissible media (→ Technical data).

• If the operating instructions or the technical data are not adhered to, personal injury and/or damage to property may occur.

• The manufacturer assumes no liability or warranty for any consequences caused by tampering with the product or incorrect use by the operator.
• Installation, electrical connection, set-up, operation and maintenance of the unit must be carried out by qualified personnel authorised by the machine operator.
• Protect units and cables against damage.
• Ensure before mounting the components into or removing them from the compressed air system that the installation is at a standstill and no pressure is applied.

3 Functions and features

The unit monitors the standard volume flow of compressed air in industrial use.

It detects the 4 process categories flow velocity, volumetric flow quantity, consumed quantity, medium temperature.

• Applications: compressed air systems in industrial use.
• All indications apply for standard volume flow to DIN ISO 2533, i.e. volume flow at 1013 hPa, 15 °C and 0 % relative air humidity.
• The unit can be set to different standard conditions ( 9.5.5 and 9.5.6).
• The general operating conditions of compressed air equipment apply.
• Pressure Equipment Directive (PED): Devices with a measuring section comply with art. 3 sec. (3) of the Directive 97/23/EC and are designed and manufactured for stable gases of the fluid group 2 in accordance with sound engineering practice.

4 Function

4.1 Processing of the measured signals

• The unit displays the current process values.
• It generates 2 output signals according to the parameter setting.
  OUT1: 4 selection options
  Switching signal for volumetric flow limit value .... (→ 9.2.1)
  or switching signal for flow velocity limit value .... (→ 9.2.1)
  or pulse sequence for quantity meter .... (→ 9.3.1)
  or switching signal for preset counter .... (→ 9.3.2)

OUT2: 6 selection options

Switching signal for volumetric flow limit value ...... (→ 9.2.2)

or switching signal for flow velocity limit value ...... (→ 9.2.2)

or switching signal for temperature limit value ...... (→ 9.4.1)

or analogue signal for volumetric flow quantity .... (→ 9.2.3)

or analogue signal for flow velocity ...... (→ 9.2.3)

or analogue signal for temperature .... (→ 9.4.2)

Instead of an output OUT2 (Pin2) can be used as an input

for an external reset signal: 9.3.5

4.2 Volumetric flow monitoring

The flow is monitored by a calorimetric measuring system, the measured signals are evaluated by the electronics.

• 2 switching signals for volumetric flow limit values can be provided (output 1 and output 2). Switching functions 4.5.
• An analogue signal which is proportional to the volumetric flow (4...20 mA) can be provided on output 2. Analogue functions → 4.6.

4.3 Consumed quantity monitoring (totalizer function)

The unit has an internal quantity meter which continuously totals the volumetric flow quantity. The sum corresponds to the current consumed quantity since the last reset.

• The current meter reading can be displayed.
• In addition the value before the last reset is stored. This value can also be displayed.
  The meter saves the totalled consumed quantity every 10 minutes. After a power failure this value is available as the current meter reading. If a time-controlled reset is set, the elapsed time of the set reset interval is also stored. So the possible data loss can be maximum 10 minutes.

• Overflow: After the maximum value (9,999,999 Nm ^3 ) the meter is reset to 0.

The meter can be reset as follows:

• Manual reset (→ 9.3.3.).
  • Time-controlled automatic reset (→ 9.3.3).
• External input signal on pin 2 (→ 9.3.5).

4.3.1 Consumed quantity monitoring with pulse output

Output 1 provides a counting pulse each time the value set in [lmPS] is reached ( 9.3.1).

4.3.2 Consumed quantity monitoring with preset counter

2 types of monitoring are possible:

• Time-dependent quantity monitoring.

• Settings: [ImPS] = quantity X, [ImPR] = [no], [rTo] = time t.
• If the quantity x is reached during the time t, output 1 switches and remains switched until the meter is reset via the digital input or [rTo] = [rED.T].

In this case the time-controlled totalizer reset is not carried out if [lmPS] = quantity X exceeded.

- If the quantity x is not reached during the time t, the meter is automatically reset and counting starts again; output 1 does not switch.

• Quantity monitoring not time-dependent.

• Settings: [ImPS] = quantity x, [ImPR] = [no], [rTo] = [OFF].
• If the quantity x is reached during the time t, output 1 switches and remains switched until the meter is reset via the digital input or [rTo] = [rED.T].

4.4 Temperature monitoring

• A switching signal for temperature limit values can be provided on output 2. Switching functions 4.5.
• An analogue signal which is proportional to the temperature (4...20 mA) can be provided on output 2. Analogue functions → 4.6.

4.5 Volumetric flow or temperature monitoring / switching function

OUTx changes its switching state if it is above or below the set switching limits (SPx, rPx). The following switching functions can be selected:

• Hysteresis function / normally open (figure 1): [OUx] = [Hno].
• Hysteresis function / normally closed (figure 1): [OUx] = [Hnc].
  First the set point (SPx) is set, then the reset point (rPx) with the requested difference. Note: when SPx is adjusted rPx is changed automatically; the difference remains constant.
• Window function / normally open (fig. 2): [OUx] = [Fno].

- Window function / normally closed (figure 2): [OUx] = [Fnc].

The width of the window can be set by means of the difference between SPx and rPx.SPx = upper value, rPx = lower value.

HY = hysteresis; FE = window

4.6 Volumetric flow or temperature monitoring / analogue function

Characteristics of the analogue output to the standard IEC 60947-5-7

1: Output current in mA
2: Operating area
3: Measuring range
4: Range between analogue start point and analogue end point
5: Error message [Err] is displayed
6: Final value of the measuring range (VMR)
7: Error message [OL] is displayed (= overload)
8: Analogue end point (AEP): determines at which measured value the output signal is 20 mA.
9: Curve of the analogue signal with shifted analogue start point
10: Curve of the analogue signal at factory setting
11: Analogue start point (ASP): determines at which measured value the output signal is 4 mA.
12: Error message [UL] is displayed (= underload)
13: Error message [Err] is displayed

Minimum distance between ASP and AEP = 25 % of the final value of the measuring range.

4.7 Setting of the standard conditions of the volume flow

The unit is adjusted to a standard volume flow to DIN ISO 2533, i.e. volume flow at 1013 hPa, 15 °C and 0 % relative air humidity.

The unit can be set to different standard conditions:

• Via the menu item [rEF.P] the standard pressure is set, which serves as a reference for the measured and display values for volumetric flow ( 9.5.5).
• Via the menu item [rEF.T] the standard temperature is set, which serves as a reference for the measured and display values for volumetric flow (→ 9.5.6).

4.8 Low flow cut-off (LFC)

With this function small volumetric flow quantities can be suppressed ( 9.5.7). Flows below the LFC value have no effect on the display and output signals.

Example: For LFC = 0.5 volumetric flow quantities below 0.5 Nm^3/h are suppressed.

5 Installation

The rules and regulations for the installation and operation of compressed air equipment must be observed.

5.1 Installation location

• Behind the cold dryer / near the load.
• If compressed air is fed into the main pipe through parallel pipes, the unit should be mounted in the main pipe.
• Installation after the maintenance unit is also possible (if oil is used for the loads, the units must be mounted before the oiler).

5.2 Installation conditions

To achieve the specified measurement accuracy, the following installation conditions must be adhered to: defined inlet and outlet pipe lengths, defined flow cross-section area, fixed installation depth and correct positioning of the measuring elements.

The unit is mounted in a measuring range which meets these conditions.

In case of disturbances on the inflow side additional calming sections (B) are recommended:

	changes to the pipe diameter B = 5 x pipe diameter
	90° elbow B = 5 x pipe diameter
	two 90° elbows, one plane B = 10 x pipe diameter
	two 90° elbows, two planes B = 15 x pipe diameter
	valve, slide B = 35 x pipe diameter

5.3 Installation position

• Permitted installation positions: pipe length vertical, any position (fig. 1, 2); pipe length horizontal, unit vertical (fig. 3, 5), unit on side, pipe length left (fig. 4).
• Avoid the installation position in fig. 6 (unit on side, pipe length right). If the flow rate is low, the specified measurement accuracy cannot be adhered to.

5.4 Installation in pipes

▶ Fit the unit in the pipe in accordance with the flow direction (arrow on the unit) and tighten.

6 Electrical connection

The unit must be connected by a qualified electrician.

The national and international regulations for the installation of electrical equipment must be adhered to.

Voltage supply according to EN 50178, SELV, PELV.

▶ Disconnect power.
▶ Connect the unit as follows:

BK: black
BN: brown
BU: blue
WH: white

graph TD
    A["Component"] -->|1| B["BN"]
    A -->|2| C["WH"]
    A -->|4| D["BK"]
    A -->|3| E["BU"]
    B --> F["L+"]
    C --> G["OUT2"]
    D --> H["OUT1"]
    E --> I["L-"]

Colours to DIN EN 60947-5-2

Pin 1 Ub+
Pin 3 Ub-
Pin 4(OUT1)	Switching signal: limit values for volumetric flow.Switching signal: quantity meter reached preset value.Pulses: 1 pulse every time the defined volumetric flow quantity is reached.Data channel for bidirectional communication.
Pin 2(OUT2/InD)	Switching signal: limit values for volumetric flow.Switching signal: limit values for temperature.Analogue signal for volumetric flow.Analogue signal for temperature.Input for signal "counter reset".

7 Operating and display elements

1 to 8: Indicator LEDs

- LED 1 (green) = current volumetric flow in standard litres / minute (NI/min).- LED 2 (green) =current volumetric flow in standard cubic metres / hour ( Nm^3/h ).- LED 3 (green) = current flow velocity in standard metres / second (Nm/s).- LED 4 (green) = current consumed quantity since the last reset in standard cubic metres ( Nm^3 ).- LED 4 (green) flashing = consumed quantity before the last reset in standard cubic metres ( Nm^3 ).- LED 4 (green) and 6 (green) = current consumed quantity since the last reset in standard cubic metres (values >9999 are displayed using the 10^3 exponential notation).- LED 4 (green) and 6 (green) flashing = consumed quantity before the last reset in 10^3 standard cubic metres (values >9999 are displayed using the 10^3 exponential notation).- LED 5 (green) = current medium temperature in °C.- LED 7 (yellow) = switching status of the corresponding output (LED indicates the input status also with an active external reset).- LED 8 (yellow) = switching status of the corresponding output.

9: Alphanumeric display, 4 digits

- Indication of the current volumetric flow quantity (if [Uni] = [Lmin] or [nm3h] and [SELd] = [FLOW] is set).- Indication of the current flow velocity (if [Uni] = [nmS] and [SELd] = [FLOW] is set).- Indication of the meter reading (if [SELd] = [TOTL] is set).- Indication of the current medium temperature (if [SELd] = [TEMP] is set).- Indication of the parameters and parameter values.

10: Mode/Enter button

- Selection of the parameters and acknowledgement of the parameter values.

11: Set button

- Setting of the parameter values (scrolling by holding pressed; incremental by pressing briefly).- Change of the display unit in the normal operating mode (Run mode).

8 Menu

8.1 Menu structure

graph TD
    A["NI/min"] --> B["S"]
    B --> C["Nm³/h"]
    C --> D["S"]
    D --> E["Nm/s"]
    E --> F["S"]
    F --> G["Nm³"]
    G --> H["S"]
    H --> I["Nm³*"]
    I --> J["S"]
    J --> K["°C"]
    K --> L["S"]
    L --> M["SP1"]
    M --> N["S"]
    N --> O["M"]
    O --> P["rP1"]
    P --> Q["S"]
    Q --> R["M"]
    R --> S["ImpS"]
    S --> T["S"]
    T --> U["M"]
    U --> V["ImpR"]
    V --> W["S"]
    W --> X["M"]
    X --> Y["OU1"]
    Y --> Z["S"]
    Z --> AA["M"]
    AA --> AB["Hno Hnc Fno Fnc"]
    AB --> AC["Imp"]
    AC --> AD["I"]
    AD --> AE["Hno Hnc Fno Fnc"]
    AE --> AF["InD"]
    AF --> AG["ASP"]
    AG --> AH["S"]
    AH --> AI["M"]
    AI --> AJ["REP"]
    AJ --> AK["S"]
    AK --> AL["M"]
    AL --> AM["SP2"]
    AM --> AN["S"]
    AN --> AO["M"]
    AO --> AP["rP2"]
    AP --> AQ["S"]
    AQ --> AR["M"]
    AR --> AS["DIin2"]
    AS --> AT["S"]
    AT --> AU["M"]
    AU --> AV["+EDG-EDG HIGH LOW"]
    AV --> AW["EF"]
    AW --> AX["S"]
    AX --> AY["M"]

    subgraph Control Path
        direction TB
        direction LR
        A1["NI/min"] --> A2["SP1"] & A3["rP1"] & A4["ImpS"] & A5["OU1"] & A6["OU2"] & A7["RAP"] & A8["rTo"] & A9["d.S"] & A10["Uni"] & A11["SELd"] & A12["SEL2"] & A13["rEFP"] & A14["rEFT"] & A15["LFC"] & A16["rES"]
        direction LR
        A1 -->|M| A2
        A2 -->|M| A3
        A3 -->|M| A4
        A4 -->|M| A5
        A5 -->|M| A6
        A6 -->|M| A7
        A7 -->|M| A8
        A8 -->|M| A9
        A9 -->|M| A10
        A10 -->|M| A11
        A11 -->|M| A12
        A12 -->|M| A13
        A13 -->|M| A14
        A14 -->|M| A15
        A15 -->|M| A16
        A16 -->|M| A17
        A17 -->|M| A18
        A18 -->|M| A19
        A19 -->|M| A20
        A20 -->|M| A21
        A21 -->|M| A22
        A22 -->|M| A23
        A23 -->|M| A24
        A24 -->|M| A25
        A25 -->|M| A26
        A26 -->|M| A27
        A27 -->|M| A28
        A28 -->|M| A29
        A29 -->|M| A30
        A30 -->|M| A31
        A31 -->|M| A32
        A32 -->|M| A33
        A33 -->|M| A34
        A34 -->|M| A35
        A35 -->|M| A36
        A36 -->|M| A37
        A37 -->|M| A38
        A38 -->|M| A39
        A39 -->|M| A40
        A40 -->|M| A41
        A41 -->|M| A42
        A42 -->|M| A43
        A43 -->|M| A44
        A44 -->|M| A45
        A45 -->|M| A46
        A46 -->|M| A47
        A47 -->|M| A48
        A48 -->|M| A49
        A49 -->|M| A50
        A50 -->|M| A51
        A51 -->|M| A52
        A52 -->|M| A53
        A53 -->|M| A54
        A54 -->|M| A55
        A55 -->|M| A56
        A56 -->|M| A57
        A57 -->|M| A58
        A58 -->|M| A59
        A59 -->|M| A60
        A60 -->|M| A61
        A61 -->|M| A62
        A62 -->|M| A63
        A63 -->|M| A64
        A64 -->|M| A65
        A65 -->|M| A66
        A66 -->|M| A67
        A67 -->|M| A68
        A68 -->|M| A69
        A69 -->|M| A70
        A70 -->|M| A71
        A71 -->|M| A72
        A72 -->|M| A73
        A73 -->|M| A74
        A74 -->|M| A75
        A75 -->|M| A76
        A76 -->|M| A77
        A77 -->|M| A78
        A78 -->|M| A79
        A79 -->|M| A80
        A80 -->|M| A81
        A81 -->|M| A82
        A82 -->|M| A83
        A83 -->|M| A84
        A84 -->|M| A85
        A85 -->|M| A86
        A86 -->|M| A87
        A87 -->|M| A88
        A88 -->|M| A89
        A89 -->|M|
    end

    subgraph Control Path
        direction LR
        direction_LR_1["HI"] & direction_LR_2["LO"] & direction_LR_3["FOU 1"] & direction_LR_4["FOU 2"] & direction_LR_5["dAP"] & direction_LR_6["rTo"] & direction_LR_7["d.S"] & direction_LR_8["Uni"] & direction_LR_9["SELd"] & direction_LR_10["SEL2"] & direction_LR_11["rEFP"] & direction_LR_12["rEFT"] & direction_LR_13["LFC"] & direction_LR_14["rES"]
            direction LR_1 fill:#f9f,stroke:#333,stroke-width:2px;
            direction LR_2 fill:#f9f,stroke:#333,stroke-width:2px;
            direction LR_3 fill:#f9f,stroke:#333,stroke-width:2px;
            direction LR_4 fill:#f9f,stroke:#333,stroke-width:2px;
            direction LR_5 fill:#f9f,stroke:#333,stroke-width:2px;
            direction LR_6 fill:#f9f,stroke:#333,stroke-width:2px;
            direction LR_7 fill:#f9f,stroke:#333,stroke-width:2px;
            direction LR_8 fill:#f9f,stroke:#333,stroke-width:2px;
            direction LR_9 fill:#f9f,stroke:#333,stroke-width:2px;
            direction LR_10 fill:#f9f,stroke:#333,stroke-width:2px;
            direction LR_11 fill:#f9f,stroke:#333,stroke-width:2px;
            direction LR_12 fill:#f9f,stroke:#333,stroke-width:2px;
            direction LR_13 fill:#f9f,stroke:#333,stroke-width:2px;
            direction LR_14 fill:#f9f,stroke:#333,stroke-width:2px;
            direction LR_15 fill:#f9f,stroke:#333,stroke-width:2px;
            direction LR_16 fill:#f9f,stroke:#333,stroke-width:2px;
            direction LR_17 fill:#f9f,stroke:#333,stroke-width:2px;
            direction LR_18 fill:#f9f,stroke:#333,stroke-width:2px;
            direction LR_19 fill:#f9f,stroke:#333,stroke-width:2px;
            direction LR_20 fill:#f9f,stroke:#333,stroke-width:2px;
            direction LR_21 fill:#f9f,stroke:#333,stroke-width:2px;
            direction LR_22 fill:#f9f,stroke:#333,stroke-width:2px;
            direction LR_23 fill:#f9f,stroke:#333,stroke-width:2px;
            direction LR_24 fill:#f9f,stroke:#333,stroke-width:2px;
            direction LR_25 fill:#f9f,stroke:#333,stroke-width:2px;
            direction LR_26 fill:#f9f,stroke:#333,stroke-width:2px;
            direction LR_27 fill:#f9f,stroke:#333,stroke-width:2px;
            direction LR_28 fill:#f9f,stroke:#333,stroke-width:2px;
            direction LR_29 fill:#f9f,stroke:#333,stroke-width:2px;
            direction LR_30 fill:#f9f,stroke:#333,stroke-width:2px;
            direction LR_31 fill:#f9f,stroke:#333,stroke-width:2px;
            direction LR_32 fill:#f9f,stroke:#333,stroke-width:2px;
            direction LR_33 fill:#f9f,stroke:#333,stroke-width:2px;
            direction LR_34 fill:#f9f,stroke:#333,stroke-width:2px;
            direction LR_35 fill:#f9f,stroke:#333,stroke-width:2px;
            direction LR_36 fill:#f9f,stroke:#333,stroke-width:2px;
            direction LR_37 fill:#f9f,stroke:#333,stroke-width:2px;
            direction LR_38 fill:#f9f,stroke:#333,stroke-width:2px;
            direction LR_39 fill:#f9f,stroke:#333,stroke-width:2px;
            direction LR_40 fill:#f9f,stroke:#333,stroke-width:2px;
            direction LR_41 fill:#f9f,stroke:#333,stroke-width:2px;
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• Ⓜ = [Mode/Enter] / Ⓢ = [Set]
- Nm^3 = current meter reading in Nm^3 / Nm^3* = stored meter reading in Nm
- The parameter values displayed in the form of numbers are factory settings or random examples.

8.2 Explanation of the menu

SP1/rP1 Upper / lower limit value for volumetric flow.
ImPS Pulse value.
ImPR	Pulse repetition active (= pulse output) or not active (= preset counter function).
OU1	Output function for OUT1 (volumetric flow or consumed quantity):- Switching signal for the limit values: hysteresis function or window function, either normally open or normally closed.- Pulse or switching signal for quantity meter.
OU2	Output function for OUT2 (volumetric flow or temperature):- Switching signal for the limit values: hysteresis function or window function, either normally open or normally closed.- Analogue signal: 4-20 mA [I].
	As an alternative: configure OUT2 (Pin2) as input for external reset signal: setting: [OU2] = [InD].
SP2/rP2 Upper / lower limit value for volumetric flow or temperature.
ASP / AEP Analogue start value / analogue end value for volumetric flow or temperature.
DIn2 Configuration of the input (Pin2) for counter reset.
EF Extended functions / opening of menu level 2.
HI / LO Maximum / minimum value memory for volumetric flow.
FOU1 Behaviour of output 1 in case of an internal fault.
FOU2 Behaviour of output 2 in case of an internal fault.
dAP Measured value damping / damping constant in seconds.
rTo Counter reset: manual reset / time-controlled reset.
diS Update rate and orientation of the display.
Uni Standard unit of measurement for volumetric flow: NI/min , Nm^3/h or Nm/s .
SELd Standard measuring unit of the display: volumetric flow value, meter reading or medium temperature.
SEL2 Standard unit of measurement for evaluation by OUT2:- limit value signal or analogue signal for volumetric flow.- limit value signal or analogue signal for temperature.
rEF.P Standard pressure to which the measured and display values for volumetric flow refer.
rEF.T Standard temperature to which the measured and display values for volumetric flow refer.
LFC Low flow cut-off.
rES Restore factory settings.

9 Parameter setting

Parameters can be set before installation and set-up of the unit or during operation.

If you change parameters during operation, the operating principle of the plant will be influenced.

▶ Ensure that there will be no malfunctions in your plant.

9.1 General parameter setting

3 steps must be taken for each parameter setting:

1	Parameter selection► Press [Mode/Enter] until the requested parameter is displayed.
2	Setting of the parameter value► Press [Set] and keep it pressed.> Current setting value of the parameter flashes for 5 s.> After 5 s: setting value is changed: incrementally by pressing the button once or continuously by keeping the button pressed.
	Numerical values are incremented continuously. For reducing the value: let the display move to the maximum setting value. Then the cycle starts again at the minimum setting value.
3	Acknowledgement of the parameter value► Press [Mode/Enter] briefly.> The parameter is displayed again. The new setting value is stored.
Setting of other parameters► Start again with step 1.
Finishing the parameter setting► Press [Mode/Enter] several times until the current measured value is displayed or wait for 15 s (from menu level 1) or 30 s (from menu level 2).> The unit returns to the operating mode.

- Change from menu level 1 to menu level 2:

► Press [Mode/Enter] until [EF] is displayed.
► Press [Set] briefly.> The first parameter of the submenu is displayed (here: [HI]).

- Locking/unlocking:

The unit can be locked electronically to prevent unintentional settings.

UK

► Make sure that the unit is in the normal operating mode.► Press [Mode/Enter] + [Set] for 10 s. > [Loc] is displayed.
During operation: [LOC] is briefly displayed if you try to change parameter values.
For unlocking:► Press [Mode/Enter] + [Set] for 10 s. > [uLoc] is displayed.

When delivered: unlocked

- Timeout:

If no button is pressed for 15 s during parameter setting, the unit returns to the operating mode with unchanged values.

9.2 Settings for volumetric flow monitoring

9.2.1 Settings for limit value monitoring with OUT1

▶ Select [Uni] and set the unit of measurement ( 9.5.1).

▶ Select [OU1] and set the switching function.

- [Hno] = hysteresis function/NO

- [Hnc] = hysteresis function/NC

- [Fno] = window function/NO

- [Fnc] = window function/NC

▶ Select [SP1] and set the value at which the output switches.

▶ Select [rP1] and set the value at which the output switches off.

Uni

0U 1

SP1

rP1

9.2.2 Settings for limit value monitoring with OUT2

▶ Select [Uni] and set the unit of measurement (→ 9.5.1).▶ Select [SEL2] and set [FLOW].▶ Select [OU2] and set the switching function.- [Hno] = hysteresis function/NO- [Hnc] = hysteresis function/NC- [Fno] = window function/NO- [Fnc] = window function/NC▶ Select [SP2] and set the value at which the output switches.▶ Select [rP2] and set the value at which the output switches back.

9.2.3 Setting the analogue value for volumetric flow

▶ Select [Uni] and set the unit of measurement (→ 9.5.1).▶ Select [SEL2] and set [FLOW].▶ Select [OU2] and set the function.- [I] = current signal proportional to volumetric flow (4...20 mA)▶ Select [ASP] and set the value at which the minimum value is provided.▶ Select [AEP] and set the value at which the maximum value is provided.

9.3 Settings for consumed quantity monitoring

9.3.1 Settings for quantity monitoring via pulse output

▶ Select [OU1] and set [ImP].▶ Select [ImPS] and set the volumetric flow quantity at which 1 pulse is provided (→9.7).▶ Select [ImPR] and set [YES].> Pulse repetition is active. Output 1 provides a counting pulse each time the value set in [ImPS] is reached.

9.3.2 Settings for quantity monitoring via the preset counter

▶ Select [OU1] and set [lmP].▶ Select [lmPS] and set the volumetric flow quantity at which output 1 switches (→9.7).▶ Select [lmPR] and set [no].> Pulse repetition is not active. The output switches ON if the value set in [lmPS] is reached. It remains set until the counter is reset.

9.3.3 Settings for program-controlled counter reset

▶ Select [rTo] and continue with a) or b)a) Reset the counter manually▶ Press [Set] until [rES.T] is displayed, then briefly press [Mode/Enter].b) Enter the value for time-controlled reset▶ Press [Set] until the requested value is displayed (intervals from 1 hour to 8 weeks), then briefly press [Mode/Enter].▶ Press [Set] until [rES.T] is displayed, then briefly press [Mode/Enter].

r- To

9.3.4 Deactivation of the counter reset

▶ Select [rTo] and set [OFF].The meter is only reset after overflow (= factory setting).Overflow: After the maximum value (9,999,999 Nm3) the counter is reset to 0.

r- To

9.3.5 Counter reset using an external signal

▶ Select [OU2] and [InD].▶ Select [Din2] and set the reset signal.- [HIGH] = reset for high signal- [LOW] = reset for low signal- [+EDG] = reset for rising edge- [-EDG] = reset for falling edge

OU2II, n2

LED 7 ( 7 Operating and display elements) indicates the input status also with an active external reset.

9.4 Settings for temperature monitoring

9.4.1 Settings for limit value monitoring with OUT2

▶ Select [SEL2] and set [TEMP].▶ Select [OU2] and set the switching function.- [Hno] = hysteresis function/NO- [Hnc] = hysteresis function/NC- [Fno] = window function/NO- [Fnc] = window function/NC▶ Select [SP2] and set the value at which the output switches.▶ Select [rP2] and set the value at which the output switches back.

9.4.2 Setting the analogue value for temperature

▶ Select [SEL2] and set [TEMP].▶ Select [OU2] and set the function.- [I] = temperature-proportional current signal (4...20 mA)▶ Select [ASP] and set the value at which the minimum value is provided.▶ Select [AEP] and set the value at which the maximum value is provided.

SEL2OU2ASPAEP

9.5 User settings (optional)

9.5.1 Setting of the standard unit of measurement for volumetric flow

▶ Select [Uni] and set the unit of measurement.- [Lmin] = volumetric flow quantity in standard litres / minute- [nm3h] = volumetric flow quantity in standard cubic metres / hour- [nmS] = current flow velocity in standard metres / secondThe setting only has an effect on the volumetric flow value.

Uni

9.5.2 Configuration of the standard display

▶ Select [SELd] and determine the standard measuring unit.- [FLOW] = the current volumetric flow value in the standard unit of measurement is displayed- [TOTL] = the current meter reading in Nm3or 1000 Nm3is displayed.- [TEMP] = the current medium temperature in °C is displayed▶ Select [diS] and set the update rate and orientation of the display.- [d1] = update of the measured values every 50 ms- [d2] = update of the measured values every 200 ms- [d3] = update of the measured values every 600 ms- [rd1], [rd2], [rd3] = display as for d1, d2, d3; rotated by 180°- [OFF] = the display is switched off in the operating mode; when pressing the button the process value is displayed for 15 s.

SELDi S

9.5.3 Setting of measured value damping

▶ Select [dAP] and set the damping constant in seconds (t value 63 %).

dAP

9.5.4 Setting of the error behaviour of the outputs

▶ Select [FOU1] and set the value- [On] = output 1 switches ON in case of a fault.- [OFF] = output 1 switches OFF in case of a fault.> For both values ([ON] and [OFF]) the counter stops counting in case of a fault.- [OU] = output 1 switches irrespective of the error as defined with the parameters.▶ Select [FOU2] and set the value- [On] = output 2 switches ON in case of a fault, the analogue signal goes to the upper end stop value (22 mA).- [OFF] = output 2 switches OFF in case of a fault, the analogue signal goes to the lower end stop value (3.5 mA).- [OU] = output 2 switches irrespective of the error as defined with the parameters. The curve of the analogue signal corresponds to IEC60947-5-7 (→ diagram in 4.6).

FOU1FOU2

9.5.5 Setting of the standard pressure to which the measured and display values for volumetric flow refer

▶ Select [rEF.P] and set the requested standard pressure.Setting range: 950...1050 hPa in steps of 1 hPa.

r-EP.P

9.5.6 Setting of the standard temperature to which the measured and display values for volumetric flow refer

▶ Select [rEF.T] and set the requested standard temperature. Setting range: 0...25 °C in steps of 1 °C.

r-EF.T

9.5.7 Setting of the low flow cut-off

▶ Select [LFC] and set the limit value.Setting range: 0.02...0.16 Nm^3/h in steps of 0.02 Nm^3/h .

LFC

9.6 Service functions

9.6.1 Reading of the min/max values for the volumetric flow

▶ Select [HI] or [LO], briefly press [Set].[HI] = maximum value, [LO] = minimum valueDelete memory▶ Select [HI] or [LO].▶ Press [Set] and keep it pressed until [----] is displayed.▶ Press [Mode/Enter] briefly.It makes sense to delete the memories as soon as the unit operates under normal operating conditions for the first time.

HILO

9.6.2 Reset of all parameters to factory setting

► Select [rES].► Press [Set] and keep it pressed until [----] is displayed.► Press [Mode/Enter] briefly.For the factory settings please refer to the end of these instructions (→ 11 Factory setting).We recommend taking down your own settings in that table before carrying out a reset.

r-ES

After reset to factory setting the value of the memory is set at zero.

9.7 Setting of the preset counter / the pulse value (ImPS)

The unit has 7 setting ranges:

	LED Display Step increment Setting range
14	0.001...	9.99	90.00	1 Nm3	0.001...	9.999	Nm3
24	10.00...	99.9	90.00	1 Nm3	10.00...	99.99	Nm3
3	4	1000...	999	1 Nm3	9	9	9	9	0.1 Nm3	100.0...999.9 Nm3
44	1000...	999	9	1 Nm3	9	9	9	9	000...9,999 Nm3
5	4+6	1000...	9	9	9	9	9	9	10 Nm3	10,000...99,990 Nm3
6	4+6	1000...	9	9	9	9	9	9	100 Nm3	100,000...999,900 Nm3
7	4+6	1000...	1000							1,000,000 Nm3

Setting operation:

▶ Set [OU1] to [ImP] ( 9.3.2).
▶ Press [Mode/Enter] until [ImPS] is displayed.
▶ Press [Set] and keep it pressed.

The current numerical value flashes for 5 s, then one of the 4 digits becomes active (digit flashes, can be changed).

▶ Set the requested pulse value as shown in the following table.

▶ First select the requested setting range (1, 2, 3): keep the set button pressed until the setting range has the requested value.

▶ Then set the value from left (first digit) to right (fourth digit).

▶ Press [Mode/Enter] briefly when all 4 digits are set.

As soon as the first digit flashes there are 3 options:

Briefly press[Set] 1 x	The flashing digit increments. 9 is followed by 0 - 1 - 2, etc.[SET] pressed 1 x 9 1 2 3 [SET] pressed 1 x 0 1.2 3 [SET] pressed 1 x 1 1 2 3
Press [Set]and keep itpressed	The flashing digit increments, 9 is followed by 0 and the next digit onthe left becomes active.[Set] permanently pressed 8 1 9 3 [Set] kept pressed 8 1 0 3
	If digit 1 is increased this way, the display changes to the next highersetting range (9 is followed by 10; the decimal point is movedonedigit to the right or the LED display changes to the 10^3 exponentialnotation).[Set] permanently pressed 9 1 2 3 [Set] kept pressed 1 0 1.2
► Wait 3 s (do not press any button).	The next digit on the right flashes (= becomes active).812.3No button pressed; after 3 s812.3after 3 s812.3after 3 s812.3
	If the 4th digit flashes for 3 s without being changed, digit 1 becomes active again if it has a value >0.after 3 s812.3If digit 1 has the value "0", the display changes to the next lower setting range (the decimal point is moved one digit to the left or the LED display changes to the 10^3 exponential notation).012.3after 3 s1230Next: change digit 4 or wait 3 s and set digit 1.after 3 s1230

• Numbers highlighted grey (e.g. 1) = flashing digit.
• if [Set] is pressed continuously, the display moves through all ranges; after the end value it jumps back to the start value. After this, release [Set] briefly and start the setting again.

10 Operation

Correct operation and compliance with the measurement accuracy can only be ensured if the environmental conditions specified in the technical data are adhered to. Ensure that the maximum pressure range, measuring range and permitted operating temperature are not exceeded.

After power on and expiry of the power-on delay time (approx. 1 s) the unit is in the Run mode (= normal operating mode). It carries out its measurement and evaluation functions and generates output signals according to the set parameters.

• Operation indication → chapter 7 Operating and display elements.
• During the power-on delay time the outputs are switched as programmed: ON for NO function (Hno, Fno), OFF for NC function (Hnc, Fnc).
• If output 2 is configured as analogue output, the output signal is at the final value of the measuring range during the power-on delay time.

10.1 Reading of set parameters

▶ Press [Mode/Enter] until the requested parameter is displayed.
▶ Press [Set] briefly.

The unit displays the corresponding parameter value. After about 15 s (from menu level 1) or 30 s (from menu level 2) it again displays the parameter, then it returns to the Run mode.

10.2 Changing the display unit in the Run mode

▶ Press [Set] briefly in the Run mode. Press the pushbutton to move to the next display unit.

The unit displays the current measured value in the selected display for approx. 15 s, the corresponding LED is lit.

10.3 Error indications

[SC1] Short circuit in OUT1*

[SC2] Short circuit in OUT2*

[SC] Short circuit in both outputs*

[OL] Measured value > 120 % of the final value of the measuring range

[UL] Measured value < -20 % of the final value of the measuring range (temperature)

[Err] Flashing: error in the measuring probe or measured value > 130 % of the final value of the measuring range

*The output concerned is switched off as long as the short circuit exists.
These messages are displayed even if the display is switched off.

10.4 General operating conditions

The unit is maintenance-free for media which do not stick to the measuring probes.

• From time to time check the measuring probes visually for build-up.
• If necessary, clean them at regular intervals. To do so, use a suitable cleaning liquid (e.g. alcoholic solution).
• Avoid mechanical damage to the measuring probes.

11 Factory setting

	Factory setting User setting
SP1 3.00
rP1 2.92
ImPS 0.001
ImPR YES
OU1 Hno
OU2 I
SP2 (FLOW) 6.00
rP2 (FLOW) 5.92
SP2 (TEMP) 24.0
rP2 (TEMP) 23.8
ASP (FLOW) 0.00
AEP (FLOW) 15.00
ASP (TEMP)	0.0
AEP (TEMP)	60.0
DIn2	+EDG
FOU1	OFF
FOU2	OFF
dAP	0.6
rTo	OFF
diS	d3
Uni	nm3h
SELd	FLOW
SEL2	FLOW
rEF.P	1013
rEF.T	15
LFC	0.02