MODEL 140,141, and 142 sensors | WIRING |
RETRACTING AND INSERTING THE MODEL 140 SENSOR
CAUTION 
Model 140 sensors are retractable. BEFORE RETRACTING THE SENSOR, be absolutely certain the process pressure is less than 100 psig (791 kPa abs) and the process temperature is at a safe level!
RETRACTING THE SENSOR
1.Push in on the sensor junction box and slowly loosen the sensor compression fitting nut by reversing the sensor tightening procedure illustrated in Figure 2.
2.When the sensor compression nut is completely unscrewed, slowly ease the sensor out until the flared tip of the electrode rests firmly within the body of the compression fitting body.
3.Close the ball valve completely.
CAUTION
Before removing the sensor be sure the ball valve is completely closed.
4.Unscrew the compression fitting body from the reducing bushing and remove the sensor from the ball valve assembly.
INSERTING THE SENSOR
CAUTION
Make sure process
1.DO NOT open the ball valve.
WARNING 
The system pressure must be less than 100 psig (791 kPa).
2.Thread the sensor compression fitting body into the reducing bushing in the rear of the ball valve and tighten. NOTE: Do not push past this point. Damage to the sensor could result.
WARNING 
If the sensor comes free of the valve, refer to Figures 2 and 13 and verify that the valve and associated fittings are as shown. Do not proceed until the sensor is correctly restrained.
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