The GM-151 SINGLE SPEED SWITCH is a printed circuit board assembly intended to function primarily as an overspeed detector on Diesel prime movers. The engine speed is determined by measuring the output frequency from a magnetic pickup mouted adjacent to the engine ring gear. Should the engine go into overspeed, an internal self-locking relay is immediately energised. De-energisation can not take place until the supply voltage to the switch is interupted. Alteration of the operating set point is accomplished through a screw driver adjusted potentiometer. Designed for panel mounting.
|Supply voltage source:||12 or 24 volts DC (specify when ordering).|
|Required signal:||Magnetic pickup, sensing ring-gear rotation. May be parralleled with govenor or other Gammatron modules.|
|Speed setting:||Screw driver adjusted potentiometer. Factory preset if ring-gear and required setting provided.|
|Relay contacts:||Single changeover, 8A resistive loading. 4A inductive. Relay locks on in the event of an overspeed condition.|