SOR Mini-Hermet Explosion Proof User Manual
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Form 169 (02.13) ©SOR Inc.
Installation
Direct-Mount Probe
The temperature sensing probe is rigidly attached to the instrument’s body/housing.
Carefully insert the sensing probe into the process through a suitable fitting or
thermowell. The standard process connection is 1/2-inch NPT(M).
Ensure that ample clearance exists before rotating the instrument housing to make
threaded connection.
Tighten the probe hex fitting with 1-1/8-inch open-end wrench for a leak free fit.
NOTE: A locally customized mounting bracket may be used if more support is desired.
Housings L, S, TA, V1, V2, LC, SC, BA, B3, B4, B5 and B6 are not recommended for direct
mount where vibration is expected. These housings should be securely mounted to a fl at
surface (bulkhead or panel rack) or pipe stanchion.
Remote-Mount Probe — Capillary
Secure the housing-mounting pad to bulkhead, panel rack or pipe stanchion with
suitable 1/4-inch (6.35 mm) bolts.
Mounting by electrical conduit connection is NOT recommended.
Suggested mounting orientation is electrical conduit connection at 3 or 9 o’clock
and sensing body at 6 o’clock. However, the device is not position sensitive and
may be mounted in any position. If a breather drain is installed, it must be
oriented at 6 o’clock (pointing down) so condensation will drain. It must be kept
clear of paint and foreign matter.
Carefully insert the sensing probe into the process through a suitable fitting or
thermowell. Adjust the desired insertion length. Tighten the probe hex fitting with
a 7/8” open-end wrench. Tighten 9/16” hex nut to fingertight. Then hold the 7/8”
fitting with a wrench and tighten the 9/16” hex nut an additional 1-1/4 turns from
finger tight. Avoid sharp bends in capillary.
When mounting to an irregular or uneven surface, install rubber washers on
bolts between the housing and mounting surface (except for high vibration
applications) to prevent deformation of housing, which could change relative
positions of internal parts and affect calibration or render device inoperative.