1 Preliminary note 1.1 Symbols used ► Instruction > Reaction, result […] Designation of buttons, switches or indications → Cross-reference Important note Non-compliance can result in malfunctions or interference� 2 Safety instructions • The device described is a subcomponent for integration into a system� - The manufacturer is responsible for the safety of the system�...
3 Functions and features This is a class A product� This product may cause radio interference in domestic areas� ► If required, take appropriate EMC screening measures� 3.1 Application area The unit monitors the flow of liquid and gaseous media� 3.2 Operating principle flow monitoring •...
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� •...
4.2 Sources of 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 equip- ment must be adhered to� • The unit complies with overvoltage category II� • Caution: For the output circuit the same protective measures as for the supply circuit must be taken�...
► Disconnect power� ► Connect the unit as follows: A: supply circuit; B: output circuit : safe separation Core colours of ifm sockets: 1 = BN (brown), 2 = BU (blue), 4 = BK (black), 5 = WH (white) For information about available sockets go to www�ifm�com� 6 Operating and display elements Flow High...
7 Set-up and settings for water (For media other than water → 8.1: Low flow adjustment). ► Switch on the supply voltage� > All LEDs light and go out again step by step� During this time the output is closed (if configured as normally open)� The unit is in the operating mode� ►...
7.2 High flow adjustment (optional) The unit determines the existing flow as normal flow and adapts the display repre- sentation (all LEDs except the switch point LED light green)� ► Let the normal flow circulate in the installation� ► Press the pushbutton and keep it pressed�...
8 Additional settings (optional) 8.1 Low flow adjustment If the unit is used in media other than water, you should additionally adapt the unit to the minimum flow� Note: The following adjustment must only be carried out after the high flow adjust- ment�...
► Press both setting pushbuttons simultaneously for at least 10 s in the operating mode� > The indication goes out, the unit locks or unlocks� On delivery: unlocked� 9 Error during adjustment If no adjustment is possible, all LEDs flash red� The unit then passes into the operating mode with unchanged values�...
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)� The unit is then ready for operation� In case of power failure or interruption all settings remain� Operating indicators Green LED bar: Current flow within the representa- tion range�...
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