Increasing demands for compliance with safety systems and overfill protection has mandated more reliable point level measurement. Echotel ® Models 961 & 962 Ultrasonic Level Switches meet these demands with reliable transducer designs, extensive hazardous location approvals, and an advanced self-test technology.
Model 961 offers the ultimate solution to reliable single point liquid level measurement. This advanced switch uses pulsed signal technology for superior performance in difficult process conditions, and to provide excellent immunity from sources of electrical noise interference. Extensive self-testing of the electronics and transducer make this advanced switch suitable for use in Safety Integrity Level (SIL) 2 loops.
Model 962 is a dual point switch that can be used as a level controller, or to control pumps in an auto fill or auto empty mode. The tip sensitive lower gap performs well in aerated or foamy liquids, and can measure to within 1 ⁄4″ of the vessel bottom. The rigidity of the unique flow-through upper gap allows separations of up to 127″ (322 cm) between the upper and lower transducer gaps.