SOR TA Nuclear Qualified Temperature Switch - Manual

Form 655 (04.13) ©SOR Inc. 1/8
The SOR ® temperature switch utilizes a SAMA Class II thermal system.
Nuclear Qualified
Temperature Switches
General Instructions
Design and
specifications are
subject to change
without notice.
For latest revision, go to
www.sorinc.com
NOTE: If you suspect that a product is defective, contact the factory or the SOR Representative
in your area for a return authorization number (RMA). This product should only be installed by
trained and competent personnel.
Table of Contents
Recommended Measurement Procedure ...1
N6 Housing ......................................3
TA Housing .......................................4
RT Housing ......................................5
Installation .......................................6
Site Storage .....................................6
Electrical Connection ...........................6
Calibration .......................................7
In considering the validity of a measurement,
remember that temperature-sensing devices respond
only to the temperature that they experience. It may
be considerably different from the temperature one
is attempting to measure if the sensor is of improper
size or configuration, or if the sensor is not adequately
coupled thermally to the media whose temperature is
being measured. The calibration procedures given below
will assure accurate and repeatable measurement of the
set points of SOR temperature switches. If the switch is
normally mounted in a thermowell, consideration should
be given to the effect this may have on the accuracy of
the switch. It is recommended that a heat transfer paste
or oil be used to thermally couple the sensing bulb to the
thermowell, both in service and during testing.
Recommended Measurement Procedure
ass II thermal system.
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NOTE: This type of system requires that the entire
length of the sensing bulb be exposed to the
temperature being measured.