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Echotel® Model 960
AS-Interface®
Ultrasonic Level Switch
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The Echotel Model 960 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 a wide variety of critical level applications.
Model 960 Switches use Actuator-Sensor-Interface (AS-i) bus digital communications for high or low single point liquid level measurement. AS-i is a versatile, low cost cabling solution that is a digital replacement for traditional hard wiring of field devices. The AS-i bus system provides
a digital serial interface with a single unshielded two-wire cable for power and data transfer.
Literature
Additional Tools:
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Measurement Principle:
High frequency 2 MHz ultrasonic pulses are transmitted across a transducer gap in the presence of a liquid medium, but are attenuated when the gap is dry.
Features:
- Patent pending technology provides unsurpassed reliability and testing of electronics, transducer, piezoelectric crystals, and electromagnetic noise
- Adjustable time delay for turbulent aerated liquids
- Tip-sensitive transducer measures level within 1/4" of the vessel bottom
- Pulsed signal technology provides superior performance in difficult process conditions
- AS-i output reduces cabling costs and simplifies installation.
Applications:
- High level alarm
- Overfill protection
- Low level alarm
- Pump protection
- Seal pot level
- Leak detection
Options:
- Deep drawn 304 stainless steel or cast aluminum housing
- NPT and ANSI flange process connections
- Varivent® and Tri-Clamp® sanitary fittings available
- Transducers with standard or 20 Ra sanitary finish
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