9 Troubleshooting �������������������������������������������������������������������������������������������������16 10 Maintenance ����������������������������������������������������������������������������������������������������17 11 Technical data ��������������������������������������������������������������������������������������������������17 1 Preliminary note 1.1 Explanation of symbols ► Instructions > Reaction, result → Cross-reference Important note Non-compliance can result in malfunction or interference� Information Supplementary note� LED lights green LED lights orange LED lights red LED flashes...
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�...
The hysteresis changes with the flow speed and it is essentially influenced by the set monitoring range� It is 2���5 cm/s for the setting 5���100 cm/s (= factory setting), it increases with higher flow speeds� • The typical response time of the unit is 1���10 s� It can be influenced by the switch point: - Low switch point = quick reaction with rising flow�...
4 Installation Using process adapters the unit can be adapted to different process connections� • Adapters have to be ordered separately as accessories� A correct fit of the unit and ingress resistance of the connection are only en- sured using ifm adapters� • For small flow rates ifm adapter blocks are available�...
4.2 Interference in the pipe system Components integrated in the pipes, bends, valves, reductions, etc� lead to turbu- lence of the medium� This affects the function of the unit� Recommendation: Adhere to the distances between sensor and sources of inter- ference: 5...10 x D 3...5 x D...
5 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: OUT2 OUT1 Pin 1...
6 Operating and display elements Flow High 0 1 2 3 4 5 6 7 8 [x10°C] Setpoint Flow Temp 1: Operation indication • The green LEDs indicate the current flow (LEDs 0 to 9 represent the range between flow standstill and maximum flow)� • A lit LED indicates the position of the switch point flow (SP1) (orange = output closed, red = output open)�...
7.1.2 Device-specific information You will find the IODDs necessary for the configuration of the IO-Link unit and detailed information about process data structure, diagnostic information and parameter addresses at www�ifm�com/gb/io-link� 7.1.3 Parameter setting tools You will find all necessary information about the required IO-Link hardware and software at www�ifm�com/gb/io-link�...
Your normal flow is below the representation range of the display� Flow High 2 setting options: ► Change the switch point (→ 7.3). 0 1 2 3 4 5 6 7 8 [x10°C] ► Carry out high-flow adjustment (→ 7.4). Your normal flow exceeds the representation Flow High range of the display (LED 9 flashes)� ►...
The unit is now adapted to your flow conditions� It returns to the operating mode, the display should now show example 1� The adjustment affects the switch point: it is increased proportionally (maxi- mum up to LED 7)� 7.5 Set switch point SP2 for temperature ►...
After LED 0 has been reached the cycle of the flashing LED starts again at LED 9; the continuously lit LED (tens digit) moves one position to the left (when setting is made with )� 0 1 2 3 4 5 6 7 8 [x10°C] 0 1 2 3 4 5 6 7 8 [x10°C]...
Using an IO-Link capable parameter setting tool, the outputs can be sepa- rately set as normally closed or normally open� 7.8 Restore the factory setting (reset) ► Press for at least 15 s� > LED 9 lights, after approx� 5 s it flashes� >...
8 Operation After every power on all LEDs light and go out again step by step (during this time the outputs are closed if configured as normally open)� The unit is then ready for operation� In case of power failure or interruption all settings remain� 8.1 Display current temperature and switch point SP2 ►...
8.3 Interference indicators Short circuit at switching output OUT1� The operating indicator and 5 red LEDs on the left light alternately� 0 1 2 3 4 5 6 7 8 [x10°C] If the short circuit has been rectified, the unit imme- 0 1 2 3 4 5 6 7 8 [x10°C] diately passes into the normal operating state�...
10 Maintenance Recommended maintenance: ► Check the sensor tip for build-up from time to time� ► Clean it using a soft cloth� Stubborn build-up (e�g� lime) can be removed using a common vinegar cleaning agent� 11 Technical data Technical data and scale drawing at www�ifm�com� More information at www�ifm�com...
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