Emerson 141, 140 Removing and Reinstalling the Model 142 Sensor, Removing the Sensor

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MODEL 140,141, and 142 sensors

WIRING

3.Slowly open the valve.

WARNING

Stand clear of the sensor.

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.

CAUTION

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!

REMOVING AND REINSTALLING THE MODEL 142 SENSOR

REMOVING THE SENSOR

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!

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.

CAUTION

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.

2.Tighten the sensor compression fitting 1/4 to 1/2 turn after it is finger tight.

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Contents Conductivity Sensors Sensor SpecificationsInstallation 140 Sensor with Ball Valve KIT PN InstallationSensor Section on Installation 142 Sensor Installation 141 SensorWire Color and Connections in Sensor WiringWiring Diagrams Model Xmt-C-10 Wiring Panel System pressure must be less than 100 psig 791 kPa Retracting and Inserting the Model 140 SensorRetracting the Sensor Inserting the SensorStand clear of the sensor Removing and Reinstalling the Model 142 SensorReinstalling the Sensor Removing the SensorCalibration Replacing Model 140 Sensor Seal MaintenanceCleaning the Sensor Checking Model 140 Retraction RestraintDescription Replacement PartsProblem Probable Cause Solution TroubleshootingSpecifications subject to change without notice