IFM SL020 Series Operating Instructions Manual Download Page 6

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SL020x SL510x

Airflow monitor

4 Function

•

The unit detects flow based on the calorimetric measuring principle.

•

The unit signals when a set airflow is reached by switching a relay and providing an LED signal:

Flow...

Output relay*

LED

above the set value

• Normally open: relay energises.

• Normally closed: relay de-energises.

green

below the set value

• Normally open: relay de-energises.

• Normally closed: relay energises.

red

*Information on the unit type (NO or NC)

Summary of Contents for SL020 Series

Page 1: ...Operating instructions Airflow monitor SL020x SL510x 11426376 00 12 2021 GB ...

Page 2: ...020x SL510x Airflow monitor 2 Contents 1 Preliminary note 3 1 1 Symbols used 3 2 Safety instructions 4 3 Intended use 5 4 Function 6 5 Installation 7 6 Electrical connection 8 7 Settings 9 8 Operation 10 ...

Page 3: ...s and further information using the QR code on the unit packaging or at www ifm com 1 1 Symbols used Requirement Instructions Reaction result Designation of keys buttons or indications Cross reference Important note Non compliance may result in malfunction or interference Information Supplementary note ...

Page 5: ...Airflow monitor SL020x SL510x 5 3 Intended use The unit monitors airflows and switches a relay ...

Page 6: ... is reached by switching a relay and providing an LED signal Flow Output relay LED above the set value Normally open relay energises Normally closed relay de energises green below the set value Normally open relay de energises Normally closed relay energises red Information on the unit type NO or NC Ò Technical data at http documentation ifm com ...

Page 10: ...L020x SL510x Airflow monitor 10 8 Operation After switching on the supply voltage both LEDs come on for approx 60 s the output relay is energised power on delay time Then the unit is ready for operation ...