Automatic Water Tank Level Controller

SELCO has developed automatic water tank level controller based on IC technology for controlling operation of pump set automatically. The unit operates on principles of conductivity Sensing of levels is by means of suitable Stainless Steel probes. underground to overhead tank - To use unit for both tanks, all connection (OH, OL, C, UL, UH) should be used. Whenever liquid level in underground tanks falls below set low level, it switches off the pump-set. Pumping will restart only when liquid level reches to set high level or above that and only if demanded by overhead tank. Low level in underground tank to be set above foot-valve to avoid dry running of pump-set. Now motor operation will be as per level in overhead tank. For Overhead Tank - To use unit for controlling levels in overhead tank, short point C, UL & UH. Now whenever level in overhead tank falls below set low level, unit operates pump-set automatically and when liquid level reaches to high level, it stops motor pump-set. Motor will restart only when liquid level falls below low level. For Underground Tank - To use the unit for underground tank, keep terminals OH & OL open. Now when liquid level falls below set low level, the unit switches off the pump-set & it will switch on the pump-set when liquid level reches to high level.