IFM SM6x04 User manual

Operating instructions
Magnetic-inductive flow meter
SM6x04
SM7x04
SM8x04
80223776 / 00 11 / 2018
UK

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Contents
1 Preliminary note���������������������������������������������������������������������������������������������������3
2 Safety instructions �����������������������������������������������������������������������������������������������3
3 Functions and features ����������������������������������������������������������������������������������������4
4 Function���������������������������������������������������������������������������������������������������������������5
4�1 Processing of the measured signals��������������������������������������������������������������5
4�2 Direction of flow ���������������������������������������������������������������������������������������������5
4�3 Analogue function ������������������������������������������������������������������������������������������6
4�4 Measured value damping (dAP) ��������������������������������������������������������������������7
5 Mounting��������������������������������������������������������������������������������������������������������������8
5�1 Recommended installation position���������������������������������������������������������������8
5�2 Not recommended installation position����������������������������������������������������������9
5�3 Grounding����������������������������������������������������������������������������������������������������10
5�4 Installation in pipes �������������������������������������������������������������������������������������� 11
6 Electrical connection������������������������������������������������������������������������������������������12
7 Operating and display elements ������������������������������������������������������������������������13
8 Menu������������������������������������������������������������������������������������������������������������������14
9 Set-up ����������������������������������������������������������������������������������������������������������������16
10 Parameter setting ��������������������������������������������������������������������������������������������16
10�1 Parameter setting in general ���������������������������������������������������������������������17
10�1�1 Change to the menu "Extended functions"���������������������������������������17
10�1�2 Locking / Unlocking ��������������������������������������������������������������������������17
10�1�3 Timeout���������������������������������������������������������������������������������������������18
10�2 Scaling of the analogue value for temperature (OUT1)�����������������������������18
10�3 Scaling of the analogue value for volumetric flow (OUT2) ������������������������18
10�4 User settings (optional)������������������������������������������������������������������������������18
10�4�1 Determine the standard unit of measurement for volumetric flow ����18
10�4�2 Determine the standard unit of measurement for temperature���������18
10�4�3 Standard display�������������������������������������������������������������������������������18
10�4�4 Measured value damping �����������������������������������������������������������������18
10�4�5 Error behaviour of the outputs ����������������������������������������������������������19
10�5 Service functions ���������������������������������������������������������������������������������������19
10�5�1 Read min/max values �����������������������������������������������������������������������19

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1 Preliminary note
►Instructions
> Reaction, result
[…] Designation of keys, buttons or indications
→Cross-reference
Important note
Non-compliance may result in malfunction or interference�
Information
Supplementary note�
CAUTION
Warning of personal injury�
Slight reversible injuries may result�
2 Safety instructions
• 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 manu-
facturer of the system�
10�5�2 Restoring the factory settings �����������������������������������������������������������19
11 Operation ���������������������������������������������������������������������������������������������������������19
11�1 Reading the process value ������������������������������������������������������������������������19
11�2 Changing the process value display in the RUN mode������������������������������20
11�3 Reading the set parameters�����������������������������������������������������������������������20
12 Troubleshooting �����������������������������������������������������������������������������������������������21
13 Technical data��������������������������������������������������������������������������������������������������21
14 Factory setting ������������������������������������������������������������������������������������������������22

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• 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 environ-
mental 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�
3 Functions and features
The unit monitors liquid media� It detects the 2 process categories volumetric flow
and medium temperature�
Pressure Equipment Directive (PED)
The units comply with the Pressure Equipment Directive and are designed and
manufactured for group 2 fluids in accordance with the sound engineering prac-
tice� Use of group 1 fluids on request�
Application area
Conductive liquids with the following properties:
• Conductivity: ≥ 20 µS/cm
• Viscosity: < 70 mm2/s at 40 °C; < 70 cSt at 104 °F

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4 Function
• The unit detects the flow based on the magnetic-inductive volumetric flow
measuring principle�
• The unit also detects the medium temperature�
• The unit displays the current process value�
4.1 Processing of the measured signals
The unit generates 2 output signals according to the parameter settings:
OUT1: Parameter setting
- Analogue signal for temperature → 10.2
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�
An arrow with the text "flow direction" on the unit indicates the positive flow
direction�
Flow... Process value display
corresponds to the marked flow direction + (positive)
against the marked flow direction - (negative)
Only positive process values are processed for the signal output�

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4.3
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
(= factory setting)
MEW Final value of the measuring range
ASP Analogue start point For scaled measuring range
AEP Analogue end point
Table 1: Definitions
MEWMAW AEPASP
Q [% MEW]
[°C]T -20-40-50 80 100 110
[°F]176-4-58 -40 212 230
120
1000-120-130 130
4
3,5FOU=OFF
20
21,5
22
[mA]
FOU=On
1
2
5
4
6
5*
6*
3
Err UL OL Err
Figure 1: Characteristics of the analogue output according to the standard IEC 60947-5-7�

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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
Err: The unit is in the error state
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�
1
Analogue signal
2
Measured value (flow or temperature)
3
Detection zone
4
Display range
5
Measuring range
5*
Analogue signal in the measuring range
with factory setting
6
Scaled measuring range
6*
Analogue signal for scaled measuring
range
4.4 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 damp-
ing time stabilises the outputs and the display� The signals [UL] and [OL] (→ 12)
are defined under consideration of the damping time�

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5 Mounting
CAUTION
If the medium temperature is above 50 °C (122 °F) parts of the housing can
increase in temperature to over 65 °C (149 °F)�
> Risk of burns�
►Protect the housing against contact with flammable substances and
unintentional contact�
►Attach the supplied warning label to the sensor cable�
►Ensure that the system is free of pressure during installation�
►Ensure that no media can leak at the mounting location during installa-
tion�
►Avoid deposits, accumulated gas and air in the pipe system�
The unit can be installed independently 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 position
►Install the unit so that the measuring pipe is always 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�
3 x D
F
S
1 x D
S
S = disturbance (e�g� shut-off / control device, pump, bends)
D = pipe diameter
F = direction of flow

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►Install in front of or in a rising pipe�
F
F
5.2 Not recommended installation position
►Avoid the following installation positions:
F
F
Directly in front of a falling pipe� In a falling pipe�

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F
F
Directly in front of
the spout of the pipe� On the suction side of a pump�
F
At the highest point of the pipe system�
F = flow direction
5.3 Grounding
If installed in an ungrounded pipe system (e�g� plastic pipes), the unit must
be grounded (functional earth)�
Ground brackets for the M12 connector are available as accessories
→ www.ifm.com.

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5.4 Installation in pipes
The units with a G thread can be installed in the pipes using adapters�
Information about the available mounting accessories at www�ifm�com�
A correct fit of the unit and ingress resistance of the connection are only ensured
using ifm adapters�
A AD DC CB B
1� Grease the threads of the process connection, adapter and sensor� Use a
lubricating paste which is suitable and approved for the application�
2� Screw the adapter (B) into the pipe (A)�
3� Place the seals (C) and install the unit according to the marked flow direction�
4� Screw the adapter (B) with the threads (D) until it is hand-tight�
5� Tighten the two adapters in opposite direction (Tightening torque: 30 Nm)�
After installation air bubbles in the system can affect the measurement�
►Corrective measures: Rinse the system after installation for ventilation�
In case of horizontal installation:
As a result of design requirements a small quantity of the medium always
remains in the measuring channel after switching off the pump�

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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:
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2 1
BK: black
BN: brown
BU: blue
WH: white
BN
WH
BK
BU
4
1
3
2OUT2
L+
L
OUT1
Colours to DIN EN 60947-5-2
Pin 1 L+
Pin 3 L-
Pin 4 (OUT1) Analogue signal for temperature
Pin 2 (OUT2) Analogue signal for volumetric flow quantity

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7 Operating and display elements
1-8: Indicator LEDs
• LEDs 1-6: Unit of the currently represented numerical value → 11.1 Reading the process
value
• LED 7-8: not used
9: Alphanumeric display, 4 digits
• Current volumetric flow quantity with setting [SELd] = FLOW
• Current medium temperature with setting [SELd] = TEMP
• Parameters and parameter values
10: [Mode/Enter] button
• Change from the RUN mode to the main menu
• Select parameters
• Acknowledge the set parameter value
11: [Set] button
• Change parameter values (hold button pressed)
• Change of the display unit in the normal operating mode (RUN mode)

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8 Menu
RUN
l/min °C /°Fm
3
/h
°C /°F
gpm gph
[Mode / Enter]
[Set]
Hi.F
Lo.F
Hi.T
Lo.T
FOU1
FOU2
dAP
diS
uni.F
uni.T
SELd
rES
EF
AEP2
ASP1
AEP1
ASP2
EF

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Parameters Explanation and setting options
ASP1 Analogue start point for temperature on OUT1�
AEP1 Analogue end point for temperature on OUT1�
ASP2 Analogue start point for volumetric flow on OUT2�
AEP2 Analogue end point for volumetric flow on OUT2�
EF Extended functions: opening of the lower menu level�
Hi�F Maximum value memory for volumetric flow�
Hi�T Maximum value memory for temperature�
Lo�F Minimum value memory for volumetric flow�
Lo�T Minimum value memory for temperature�
FOU1 Behaviour of OUT1 in case of an internal fault:
OU, On, OFF (→ 10.4.5)�
FOU2 Behaviour of OUT2 in case of an internal fault:
OU, On, OFF (→ 10.4.5)�
dAP Measured value damping: damping constant in seconds�
diS Update rate and orientation of the display: d1���d3, rd1���rd3, OFF
(→ 10.4.3)�
uni�F Standard unit of measurement for volumetric flow
uni�T Standard unit of measurement for temperature
SELd Standard measured variable of the display:
FLOW (volumetric flow value), TEMP (medium temperature)�
rES Restoring the factory settings�

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9 Set-up
After power on and expiry of the power-on delay time of approx� 5 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 parame-
ters�
During the power-on delay time the output signal is at 20 mA�
10 Parameter setting
Parameters can be set before installation or during operation�
If you change parameters during operation, this will influence the function�
►Ensure that there will be no malfunctions in your plant�
During parameter setting the unit remains in the operating mode� It continues to
monitor with the existing parameter until the parameter setting has been complet-
ed�
CAUTION
If the medium temperature is above 50 °C (122 °F) parts of the housing can
increase in temperature to over 65 °C (149 °F)�
> Risk of burns�
►Do not touch the device with your hands�
►Use another object (e�g� a ballpoint pen) to carry out settings on the unit�

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10.1 Parameter setting in general
1� Change from the RUN mode to the main menu and
selection of the requested parameter
[Mode/Enter]
2� Acknowledge the set parameter value [Set]
3� Change the setting mode [Set] > 5 s
4� Modification of the parameter value
- incrementally by pressing once
- continuously by keeping the button pressed
To reduce the value: let the display move to the
maximum setting value� Then the cycle starts
again at the minimum setting value�
[Set]
5� Acknowledge the set parameter value [Mode/Enter]
6� Return to the RUN mode > 30 seconds (timeout)
or
[Mode/Enter] until the RUN
mode is reached�
10.1.1 Change to the menu "Extended functions"
1� Change from the RUN mode to the main menu and
selection of the parameter EF
[Mode/Enter]
2� Change to sub-menu EF [Set]
10.1.2 Locking / Unlocking
The unit can be locked electronically to prevent unintentional settings� On delivery:
not locked�
Locking ►Make sure that the unit is in the normal operating mode�
►Press [Mode/Enter] and [Set] simultaneously for 10 s until [Loc] is
displayed�
Unlocking ►Make sure that the unit is in the normal operating mode�
►Press [Mode/Enter] and [Set] simultaneously for 10 s until [uLoc] is
displayed�

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10.1.3 Timeout
If no button is pressed for 30 s during parameter setting, the unit returns to the
operating mode with unchanged values�
10.2 Scaling of the analogue value for temperature (OUT1)
►Select [ASP1] and set the value at which 4 mA is provided�
►Select [AEP1] and set the value at which 20 mA is provided�
10.3 Scaling of the analogue value for volumetric flow (OUT2)
►Select [ASP2] and set the value at which 4 mA is provided�
►Select [AEP2] and set the value at which 20 mA is provided�
10.4 User settings (optional)
10.4.1 Determine the standard unit of measurement for volumetric flow
►Select [uni�F] and set the unit of measurement: Lmin, m3h, GPm or GPh�
10.4.2 Determine the standard unit of measurement for temperature
►Select [uni�T] and set the unit of measurement: °C or °F�
10.4.3 Standard display
►Select [SELd] and define the standard unit of measurement
FLOW = display shows the current volumetric flow value in the standard unit of
measurement�
TEMP = display shows the current medium temperature in the standard unit of
measurement�
►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 like d1, d2, d3; rotated by 180�
OFF = the display is switched off in the operating mode� The LEDs remain active
even if the display is deactivated� Error messages are displayed even if the display is
deactivated�
10.4.4 Measured value damping
► Select [dAP] and set the damping constant in seconds (τ value 63 %).

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10.4.5 Error behaviour of the outputs
►Select [FOUx] and set the value:
- On = The analogue signal goes to the upper fault value (→ 4.3)�
- OFF = The analogue value goes to the lower fault value (→ 4.3)�
- OU = The analogue signal corresponds to the measured value�
10.5 Service functions
10.5.1 Read min/max values
Read minimum or maximum measured values:
►Select Hi�x or Lo�x�
Hi�F = maximum volumetric flow, Lo�F = minimum volumetric flow
Hi�T = maximum temperature, Lo�T = minimum temperature
Delete memory:
►Select Hi�x or Lo�x�
►Press and hold [Set] until [----] is displayed�
►Briefly press [Mode/Enter]�
It makes sense to delete the memories as soon as the unit operates under normal
operating conditions for the first time�
10.5.2 Restoring the factory settings
►Select [rES]�
►Press and hold [Set] until [----] is displayed�
►Briefly press [Mode/Enter]�
→ 14 Factory setting� We recommend taking down your own settings in that table
before carrying out a reset�
11 Operation
11.1 Reading the process value
The LEDs 1-6 signal which process value is currently displayed�
The process value to be displayed as standard (volumetric flow quantity or tem-
perature) can be preset → 10.4.3 Standard display�
Moreover, a standard unit of measurement can be defined (volumetric flow →
10�4�1 and temperature → 10.4.2)�

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11.2 Changing the process value display in the RUN mode
►Briefly press [Set] 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 unit for
approx� 30 s, the corresponding indicator LED lights (→ 7)�
11.3 Reading the set parameters
►Briefly press [Mode/Enter] to scroll through the parameters�
►Briefly press [Set] when the requested parameter is displayed�
> The unit displays the corresponding parameter value� After about 15 s it returns
to the RUN mode�
This manual suits for next models
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