961 Datasheet, PDF (6/16 Pages) Magnetrol International, Inc. – SIL Safety Manual for Echotel Model 961/962

5.0 Instructions
5.1 Systematic Limitations
The following application and environmental limitations
must be observed to avoid systematic failures.
5.1.1 Application Locations
The Model 961/962 ultrasonic level switch should be located
for easy access for service, configuration, and monitoring.
There should be sufficient headroom to allow installation
and removal of the unit. Special precautions should be
made to prevent exposure to corrosive atmosphere, excessive
vibration, shock, or physical damage.
5.1.2 Operating Temperature
The ambient temperature range for the 961/962 electronics is
-40° to +160° F (-40° to + 70° C). The operating tempera-
ture for the transducer is dependent on transducer material
(see Table 3).
Table 3
9A1/9M1 Transducer Operating Temperatures
316 Stainless Steel,
Hastelloy C, and Monel
Kynar
CPVC
-40° to +325° F (-40° to +163° C)
-40° to +250° F (-40° to +121° C)
-40° to +180° F (-40° to 82° C)
5.1.3 Operating Pressure
Maximum operating pressures are dependent on the trans-
ducer material. Refer to Section 3.4 in the Echotel Model
961/962 Ultrasonic Level Switches Installation and Operating
Manual (Bulletin 51-646).
5.1.4 Environmental
See Section 3.4 of the Echotel Model 961/962 Ultrasonic
Single and Dual Point Level Switches Installation and
Operating Manual (Bulletin 51-646) for environmental
limitations.
5.2 Skill Level of Personnel
Personnel following the procedures of this safety manual
should have technical expertise equal to or greater than that
of a qualified instrument technician.
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51-650 Echotel SIL Safety Manual