An effective device for automation of pumpsets, that are suitable for conductive and non-conductive liquids. However the choice of level sensing probes put the limitation. Whenever the water level in the overhead tank falls below the set low level the device operates the pump set, and it stops the pump set when the water level rises to the set high level. This is also used for underground tank [reservoir]. In such case the water level falls below the set low level the device does not permit to operate the pump. It allows pumping when the water level in the reservoir rises to the set high level and thereafter fill the water level in the underground tank, must be set above the foot value to avoid dry running of motor. These are available for single phase as well as three phase motor pump sets.
