Contents 1 Preliminary note ���������������������������������������������������������������������������������������������������3 1�1 Symbols used ������������������������������������������������������������������������������������������������3 2 Safety instructions �����������������������������������������������������������������������������������������������3 3 Functions and features ����������������������������������������������������������������������������������������4 3�1 Application area ��������������������������������������������������������������������������������������������4 3�2 Operating principle flow monitoring ���������������������������������������������������������������4 4 Installation������������������������������������������������������������������������������������������������������������5 4�1 Installation location ���������������������������������������������������������������������������������������5 4�2 Interference in the pipe system ���������������������������������������������������������������������6 4�3 Installation procedure ������������������������������������������������������������������������������������6 4�3�1 Installation using an adapter with sealing ring (hygiene-compliant) ����6 4�3�2 Installation using a welding adapter with sealing ring (hygiene-...
1 Preliminary note You will find technical data, approvals and further information using the QR code on the unit / packaging or at www�ifm�com� 1.1 Symbols used ► Instruction > Reaction, result → Cross-reference Important note Non-compliance may result in malfunction or interference�...
• 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� •...
4 Installation ► Ensure that the system is free of pressure during installation� ► Ensure that no media can leak at the mounting location during installation� 4.1 Installation location General • The sensor tip is to be completely surrounded by the medium� •...
► Insert the unit with process adapter into the process connection and tighten using a spanner� Information about available adapters at www�ifm�com� ► Observe the instructions of the adapter� ► Use a lubricating paste which is suitable and approved for the application�...
4.3.2 Installation using a welding adapter with sealing ring (hygiene- compliant) ► To meet the hygiene regulations use a process adapter with leakage port� ► Make sure that the process adapter does not warp during welding� The adapter is supplied with EPDM O-ring (order no� E30054� Another sealing ring is available as accessory: •...
4.4 Use in hygienic areas to 3-A The following applies to units with 3-A certification: ► Only use adapters with 3-A certification for the process connection� ► Do not install the unit at the lowest point of the pipe or tank (→ position 5) in order that the medium can run off the area of the measuring element�...
Voltage supply to EN 50178, SELV, PELV� ► Disconnect power� ► Connect the unit as follows: 3 BU Core colours of ifm sockets: 1 = BN (brown), 3 = BU (blue), 4 = BK (black)
6 Operating and display elements Flow High 0 1 2 3 4 5 6 7 8 9 Setpoint 1: operation display • The green LEDs indicate the current flow (LEDs 0 to 9 represent the range between minimum flow and maximum flow)� •...
7.1 Change the switch point (optional) For the factory setting the switch point is at LED 7� A change makes sense in the following cases: • the display shows example 2� • the flow fluctuates much or pulsates� • A faster response time of the unit is requested (low switch point = fast response with rising flow, high switch point = fast response with falling flow)�...
Attention: The following adjustment must only be carried out after the high-flow adjustment� Proceed as follows: ► Let the minimum flow circulate in the installation or ensure flow standstill� ► Press the pushbutton and keep it pressed� > LED 0 lights, after approx� 5 s it flashes� ►...
> The indication goes out, the unit locks or unlocks� On delivery: not locked� 9 Error during adjustment If no adjustment is possible, all LEDs flash red� The unit then returns to the operating mode with unchanged values� Possible cause / aid: ►...
10 Operation After every power on all LEDs light and go out again step by step (during this time the output is closed if configured as normally open)� Then the unit is ready for operation� In case of power failure or interruption of the operating voltage all settings remain� Operation indication Green LED bar: current flow within the display range�...