ECHOTEL Ultrasonic Level Switches ® The more you rely on ECHOTEL ultrasonic level switches, the less you will worry if a tuning fork is up to the job of providing the outstanding quality, reliability and overfill prevention your facility needs.

ECHOTEL® ultrasonic switches provide continuously accurate and r eliable level control that outperforms tuning fork technology. W hile tuning forks have been widely adapted by the industry, t he fact is ECHOTEL ultrasonic switches offer more benefits More Performance Tuning Fork Reads All Liquid Densities • ECHOTEL can read any liquid density, even below 0.6 SG, to provide continuously accurate and reliable level control – and superior overfill prevention. • Unlike tuning forks, which require you to configure a DIP switch to ensure density calibration – and may not be able to measure low-density...

More Information and Diagnostics Level Alarm Two Separate Relay Outputs • ECHOTEL ultrasonic units allow you to configure two separate relay outputs for diagnostics and level alarms to give you more information – and ensure compliance with industry safety guidelines. Advanced Diagnostics Capabilities Red Light Indicates Fault • ECHOTEL also offers advanced diagnostics capabilities compared to tuning forks, with thorough testing of electronics, transducer, piezoelectric crystals and for the presence of electromagnetic noise. More Advanced Technology Receive Crystal Receive Crystal Transmit Crystal...

ECHOTEL® Ultrasonic Level Switches Technical Specifications Electronics Specifications Model 961 / 962 with Relay Output Supply Voltage Relay Outputs Relay Ratings Fail-safe Power Consumption Ambient Temperature 18 to 32 VDC, or 102 to 265 VAC, 50/60 Hz 961: One DPDT level relay and one SPDT malfunction relay 962: Two SPDT level relays and one SPDT malfunction relay DPDT: 5 amps @ 120 VAC, 250 VAC, and 30 VDC, 0.4 amp @ 110 VDC SPDT: 5 amps @ 120 VAC, 250 VAC, and 30 VDC, 0.15 amp @ 125 VDC Selectable for high or low level 961/962 Less than 3 watts -40° to +160° F (-40° to +70° C) Model 961 /...