With non intrinsically safe control units, inductive
contacts must not be operated in explosion hazardous areas.
Their direction of action is permanently fixed. The output relay
is de-energised when the flag passes through the air gap.
The line break monitoring is in series. Apart from the outputs
required for the operation of the switch contacts, there is an
additional output with a direct 24 V voltage (max. 20 mA).
This additional output can be used, for example, to supply
the indicator lights.