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MODEL 140,141, and 142 sensors WIRING
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3. Slowly open the valve.
4. Insert the sensor up to the desired insertion depth and turn the sensor compression fitting nut until it is finger tight.
5. Position the entire sensor for easy access to the ball valve handle, sensor compression fitting nut and J-box
terminal block.
6. Tighten sensor compression fitting nut.
Stand clear of the sensor.
For initial installation of the sensor, tighten the com-
pression fitting nut 1-1/4 turns after finger tight. If it is
a reinstallation, turn no more than 1/4 to 1/2 addi-
tional turns!
WARNING
CAUTION
REMOVING AND REINSTALLING THE MODEL 142 SENSOR
REMOVING THE SENSOR
1. Reduce process temperature and pressure to a safe level. If necessary drain the process line.
2. Loosen the sensor compression fitting and slowly slide the sensor from the pipe fitting or weldalet.
REINSTALLING THE SENSOR
1. Slide the sensor into the process fitting and position the sensor the way it was originally installed.
2. Tighten the sensor compression fitting 1/4 to 1/2 turn after it is finger tight.
Be sure the sensor is in the original position. The
sensor tube takes a permanent set and could
become weakened if the new set is adjacent to the
original set.
CAUTION
WARNING
Before removing the sensor, be absolutely certain
that the process pressure is reduced to 0 psig and
the process temperature is lowered to a safe level!
WARNING