961-20A0-011 Datasheet, PDF (1/12 Pages) Magnetrol International, Inc. – Echotel® Model 961/962 Ultrasonic Level Switches

Echotel^® Model 961/962
Ultrasonic Level Switches
DESCRIPTION
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 advanced trans-
ducer designs, extensive hazardous location approvals,
and a new 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 ¹â„4" of
the vessel bottom. The rigidity of the unique flow-through
upper gap allows separations of up to 128" (325 cm)
between the upper and lower transducer gaps.
FEATURES
• Single or dual point liquid level measurement
• Advanced self-test technology provides
unsurpassed testing of electronics, transducer,
piezoelectric crystals, and electromagnetic noise
• Adjustable time delay for turbulent aerated liquids
• Relay output or mA current shift with separate
malfunction indication
• Integral or remote mount electronics
• Pulsed signal technology
• Extensive FM, CSA, and ATEX explosion proof and
intrinsically safe approvals
• Suitable for Safety Integrity Level (SIL) 2 loops
Model 961
Model 962
APPLICATIONS
• High level alarm
• Low level alarm
• Overfill protection
• Pump protection
• Seal pot level
• Pump control
INDUSTRIES
• Chemical
• Petrochemical
• Pulp and paper
• Food and pharmaceutical
• Power
• Water and wastewater