Function:

PWL21P a low cost, reliable,  IC based  water level controllers. It  keep  constant watch on the water level and switch ON  or OFF the pump motors subject to availability of water at the reservoir and requirement level set at the upper tank.

Series PWL21P is designed to operate with electrode type to sense the water level.  Stainless Steel sensors with connector box are installed both at  over head tank and reservoir. 

Features:
 
No dry run of motor & no overflow of water:

Sensors installed in the reservoir senses the availability of water in it. The sensors at the overhead tank is preset with a  level at which the pump is to operate and switch off on reaching upper  level. The pump is switched on only if the water is available at the reservoir.  The system ensures no over flow from the overhead tank and no motor burn out due to dry running .

  AUTO/MANUAL/ OFF Selection:

  The controller has AUTO/ MANUAL/ OFF  selection switch on the front    
  panel. Under manual mode pump can be  switch on manually, if the switch is    
  in center- Off position, motor remains  OFF. This option may be required in  
  emergencies and for cleaning up the electrodes or water tanks.

  Direct operation:

  Up to 2 H.P. 1 Phase. On demand higher rating can be supplied.