SOR TA Nuclear Qualified Temperature Switch User Manual
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Form 655 (04.13) ©SOR Inc.
Site Storage
Store switch in a dry area in the original shipping package. Shelf life is 10 years for a
maximum ambient temperature of 80°F, based on aging data in SOR Test Report 9058-102.
Electrical connections are marked on the insulation of the wire leads. Conduit should be
installed without applying strain to the housing.
Electrical Connection
Temperature
Temperature
Minimum Bend Radius for Wire
Permanent Training
1/2” R
Pulling Tension
1” R
Terminating Junction
1/4” R
Installation
Refer to applicable drawing for mounting dimensions of specific model number. The
vent connection must be plugged or vented to dry atmosphere as required by application
requirements.
Direct Mount Line mount or mount to a rigid mounting surface with process connection
down (6 o’clock). If the switch must be removed from a thermowell, loosen the process
connection by placing a 1-1/4” wrench on the hex adjacent to the process threads. Do not
use wrench on the sensing body. (See drawings.)
Remote Mount Mount to a rigid mounting surface with retainer down (6 o’clock). Secure
capillary every two feet. To install sensing bulb, loosen gland nut so that the process con-
nection turns freely. Re-tighten gland nut after process connection is installed.