IFM Electronic SM9x04, SM2x04 Operating Instructions Manual

Operating instructions

Magnetic-inductive

flow meter

SM9x04 SM2x04

80223777 / 00 05 / 2016

Contents

1 Preliminary note �� 4

1�1 Symbols used ��4 1�2 Warning signs used ��4

2 Safety instructions ��4

3 Functions and features ��5

4 Function �� 6

4�1 Processing of the measured signals ��6 4�2 Direction of flow ��6

4�2�1 Determination of the direction of flow (Fdir) ��6 4�3 Consumed quantity meter ��6 4�4 Empty pipe detection ��7 4�5 Analogue function ��7 4�6 Measured value damping (dAP) ��9 4�7 Low flow cut-off (LFC) ��9 4�8 Simulation �� 9 4�9 IO-Link ��9

5 Installation��10

5�1 Recommended installation locations ��10 5�2 Not recommended installation position �� 11 5�3 Grounding �� 12 5�4 Installation in pipes ��13

6 Electrical connection �� 14

7 Operating and display elements ��14

8 Menu �� 15

8�1 Process value display �� 15 8�2 Main menu, Extended functions ��16 8�3 Basic settings ��18 8�4 Min/max memory – Empty pipe – Simulation ��20

9 Set-up ��21

10 Parameter setting ��22

10�1 Parameter setting in general ��23

10�1�1 Switching between the menu levels ��24

10�1�2 Locking / unlocking ��24

10�1�3 Timeout �� 24 10�2 Setting the analogue value for temperature ��24 10�3 Setting the analogue value for volumetric flow ��24 10�4 User settings (optional) ��25

10�4�1 Setting of the standard unit of measurement for temperature �� 25

10�4�2 Setting of the standard unit of measurement for volumetric flow ��25

10�4�3 Configuration of the standard display �� 25

10�4�4 Changing the direction of the flow rate measurement �� 25

10�4�5 Setting of measured value damping ��25

10�4�6 Setting of the error behaviour of the outputs ��25

10�4�7 Activating / deactivating empty pipe detection �� 26

10�4�8 Time-delay empty pipe detection �� 26

10�4�9 Setting of the empty pipe detection ��26

10�4�10 Setting of the low flow cut-off �� 26 10�5 Service functions ��26

10�5�1 Reading the min/max values for the volumetric flow ��26

10�5�2 Reading the min/max values for the temperature ��27

10�5�3 Simulation menu �� 27

10�5�4 Resetting all parameters to factory setting ��27

10�5�5 Activating the IO-Link communication interface ��27

11 Operation ��28

11�1 Reading the process value ��28

11�2 Reading the parameter value ��28

12 Troubleshooting ��29

13 Technical data �� 30

14 Factory setting ��31

1 Preliminary note

1.1 Symbols used

► Instruction > Reaction, result […] Designation of keys, buttons or indications → Cross-reference

Important note Non-compliance can result in malfunction or interference�

Information Supplementary note�

1.2 Warning signs used

CAUTION

Warning of personal injury� Slight reversible injuries may result�

2 Safety instructions

• Please read this document prior to set-up of the unit� Ensure that the product is suitable for your application without any restrictions�

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

• Improper or non-intended use may lead to malfunctions of the unit or to unwanted effects in your application� That is why installation, electrical connection, set-up, operation and maintenance of the unit must only be carried out by qualified personnel authorised by the machine operator�

• In order to guarantee the correct condition of the device for the operating time it is necessary to use the device only for media to which the wetted materials are

sufficiently resistant (→ Technical data).

• The responsibility whether the measurement devices are suitable for the respective application lies with the operator� The manufacturer assumes no liability for consequences of misuse by the operator� Improper installation and use of the devices result in a loss of the warranty claims�

• For medium temperatures above 50 °C (122 °F) some parts of the housing can heat up to over 65 °C (149 °F)� Moreover, during installation or in case of a fault (e�g� housing damage) media under high pressure or hot media can leak from the system� To avoid personal injury, take the following measures:

► Install the unit according to the applicable rules and regulations� ► Ensure that the system is free of pressure during installation� ► Protect the housing against contact with flammable substances and

unintentional contact� To do so, equip the unit with suitable protection (e�g� protective cover)�

► Do not press the pushbuttons manually; instead use another object (e�g�

ballpoint pen)�

• This is a class A product� This unit may cause radio interference in domestic areas� If required, take appropriate EMC screening measures�

3 Functions and features

Pressure Equipment Directive (PED): The units comply with section 3, article 3 of the Directive 97/23/EC and must be designed and manufactured for non-superheated liquids of group 2 fluids in accordance with the sound engineering practice�

The unit monitors liquid media� The unit detects the 3 process categories volumetric flow quantity, consumed

quantity and medium temperature�

Application area

Conductive liquids with the following properties:

• Conductivity: ≥ 20 µS/cm

• Viscosity: < 70 mm

/s at 40 °C; < 70 cST at 104 °F

4 Function

• The unit detects the flow based on the magnetic-inductive volumetric flow measuring principle�

• The unit also detects the medium temperature�

• It features an IO-Link interface�

• The unit displays the current process value�

4.1 Processing of the measured signals

The unit generates 2 output signals according to the parameter setting�

OUT1/IO-Link: Parameter setting

- Analogue signal for temperature (→ 10.2)

- Communication interface (→ 10.5.5)

OUT2: Parameter setting

- Analogue signal for volumetric flow quantity (→ 10.3)

4.2 Direction of flow

In addition to the flow velocity and the volumetric flow quantity, the unit also detects the direction of flow�

4.2.1 Determination of the direction of flow (Fdir)

An arrow with the text "flow direction" on the unit indicates the positive flow direction� The flow direction can be inversed (→ 10.4.4)�

► Use the supplied label to mark the changed flow direction (new positive

direction of flow)�

Flow... Process value display

corresponds to the marked flow direction + (positive)

against the marked flow direction - (negative)

4.3 Consumed quantity meter

The unit has an internal mass flow meter which continuously totals the volumetric flow quantity� The total corresponds to the current consumed quantity�

• The quantity meter takes account of the flow direction for totalisation:

- Flow according to the marked flow direction (arrow "flow direction"): meter adds�

- Flow against the marked flow direction: meter subtracts�

The meter saves the totalled consumed quantity every 10 minutes� After a power failure this value is available as the current meter reading� So the possible data loss can be maximum 10 minutes�

The current meter reading can be evaluated via an external parameter setting software (→ 10.5.5 Activating the IO-Link communication interface)�

4.4 Empty pipe detection

The unit detects when the two electrodes are not wetted by the medium� The empty pipe detection can be activated or deactivated (→ 10.4.7)� If it is active and the pipe is empty, the unit reacts as follows:

> [SEnS] is indicated in the display� > The flow is set to zero�

The empty pipe detection can be set as time-depending or not time depending (→ 10�4�8)�

4.5

Analogue function

• The unit provides an analogue signal that is proportional to the volumetric flow quantity and the medium temperature�

• Within the measuring range the analogue signal is 4��20 mA�

• If the measured value is outside the measuring range or in the event of an internal error, the current signals indicated in Figure 1 are provided�

• The measuring range is scalable: [ASP] determines at which measured value the output signal is 4 mA� [AEP] determines at which measured value the output signal is 20 mA �

Minimum distance between [ASP] and [AEP] = 20 % of the final value of the measuring range�

MAW Initial value of the measuring range

For non-scaled measuring range

MEW Final value of the measuring range

ASP Analogue start point

AEP Analogue end point

Table 1: Definitions

[mA]

FOU=On

21,5

(= factory setting)

For scaled measuring range

3,5FOU=OFF

cr.UL UL OL cr.OL

-130

-120Q [% MEW]

-50

MEWMAW AEPASP

1000 130

120

[°C]T -40 -20 80 100 110

[°F]-40 -4 176 212 230-58

Figure 1: Characteristics of the analogue output according to the standard IEC 60947-5-7� Q: Flow (a negative flow value means flow against the marked flow direction)

T: Temperature UL: Below the display range OL: Above the display range cr�UL: Below the detection zone (error) cr�OL: Above the detection zone (error) FOU=On: Default setting at which the analogue signal goes to the upper final value in

case of an error�*

FOU=OFF: Default setting at which the analogue signal goes to the lower final value in

case of an error�* * The type of error is displayed: cr�UL, cr�OL, Err (→ 12)�

Analogue signal

Analogue signal in the measuring range Measured value (flow or temperature) Detection zone Display range Measuring range

with factory setting

Scaled measuring range

Analogue signal for scaled measuring

range

4.6 Measured value damping (dAP)

The damping time allows to set after how many seconds the output signal has reached 63 % of the final value if the flow value changes suddenly� The set damping time stabilises the outputs, the display and the process value transfer via the IO-Link interface� The signals [UL] and [OL] (→ 12 Troubleshooting) are defined

under consideration of the damping time�

4.7 Low flow cut-off (LFC)

With the function Low Flow cut-off small volumetric flow quantities can be ignored (→ 10.4.10)� Flows below the LFC value are evaluated by the sensor as standstill (Q = 0)�

4.8 Simulation

With this function flow and temperature values can be simulated� (→ 10.5.3)� The outputs operate as previously set�

4.9 IO-Link

This unit has an IO-Link communication interface� With a PC, suitable IO-Link software and an IO-Link adapter cable communication

is possible when the system is not in operation� The IODDs necessary for the configuration of the unit, detailed information about

process data structure, diagnostic information, parameter addresses and the necessary information about the required IO-Link hardware and software can be found at www�ifm�com�

► The memory plug (E30398) must not remain connected to the unit,

because it falsifies the analogue output� It must only be connected for parameter setting�

5 Installation

► Avoid deposits, accumulated gas and air in the pipe system�

The unit can be installed irrespective of the orientation if the following is ensured:

- No air bubbles can form in the pipe system�

- The pipes are always completely filled�

5.1 Recommended installation locations

Example of an optimised installation:

► Install the unit so that the measuring pipe is completely filled� ► Arrange for inlet and outlet pipe lengths� Disturbances caused by bends,

valves, reductions, etc� are compensated for� It applies in particular: no shut-off and control devices are allowed directly in front of the unit�

5 x D

S S

2 x D

S = disturbance; D = pipe diameter; F = flow direction

+ 21 hidden pages