SWE – Helios – Air Flow Switch
For monitoring the air flow in piping shafts. The air sensor compares the air flow with the given values, which can be set from 1 upto 20 m/s.
When the given value is reached or overshot, then the relay trips either to reduce or switch completely off. (Working and/or standby current). Two LED’s show the status of the unit. For installation in a junction box and fixing onto 35 mm bars.