Description: Electrical vibration switch is designed as direct replacement of mechanical vibration switches. Mechanical switches used in yesteryears have very little merit and served the purpose when the requirement was not stringent. As they rely on large impacts or inertia (both acceleration) nuisance tripping during startup is a usual problem. Further, sensitivity adjustment is too ambiguous to offer any meaningful translation. ACD vibration switches can be directly installed in place of mechanical vibration switches and offer immense advantages; the basic sensor is piezo electric accelerometer that has no moving parts. These electronically integrate the acceleration signal giving displacement or velocity signal as per requirement. Vibration could be controlled very precisely with graduated controls. Built-in electronic delay takes care of start-up and other spurious signals. Remote reset is another positive advantage; either Stand Alone or Remote Sensor options are available. These switches can be supplied in enclosures suitable for weatherproof (IP 55) application or for gas areas IIA - IIB (Class I, Dvn I Grp C & D) or IIC (Class I, Dvn II, Grp B). Some of the applications are cooling towers, centrifuges, large motors and generators, crushers and naval vessels.
Other Catalogs (From ACD Machine Control Company (P) Limited) :
