Battery Operated Photo Switch

General

The projector may be installed where there is no power supply and the receiver may be installed externally to the machine. They must be installed in a face to face position. When projector's terminal numbers 3 and 4 are connected by a switch, either momentary or continuously, the projector emits a light beam for approx. 4 sec. Consequently the output relay of the receiver will be activated only when light is being received. For example, when installed in the cradle of a wire bunching machine, it can inform the operator of an abnormal condition in the cradle.