961 datasheet(6/16 Pages) MAGNETROL

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51-650 Echotel SIL Safety Manual

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).

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.

Table 3

9A1/9M1 Transducer Operating Temperatures

316 Stainless Steel,

Hastelloy C, and Monel

-40° to +325° F (-40° to +163° C)

Kynar

-40° to +250° F (-40° to +121° C)

CPVC

-40° to +180° F (-40° to 82° C)

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