Type CPM metal part positioning sensor is designated for control the position of machines’ and devices’ metal elements. CPM in his principle of operation constitutes semi-conductive connector reacting on presence of metal element. CPM on output possess two make-and-break relay contacts whereby directly two separate circuits (i.e. control and signalling) with up to 250V voltage rating can be connected. Sensor power supply is 24 VAC. Power supply should come from SELV power source. CPM’s power supply circuit should be protected from effects of short-circuit and insulation resistance reduction.