Table 3-9 Procedure For Extracting Sensor From Pressurized Process - Honeywell 5000TC Series Operation And Maintenance Manual

Series 5000TC Toroidal (electrodeless) Conductivity Sensors
Extraction from Pressurized Process
WARNING
Extracting a sensor from a pressurized process may be dangerous. Do not stand directly behind the assembly
when removing the retaining cap (item G) to extract the sensor. It is recommended to reduce the process
pressure to below 10 psi before extracting the sensor. If this is not possible, us extreme caution. At higher
pressures, the sensor/extractor shaft assembly may travel rapidly to its maximum outward position, potentially
injuring anyone in its path.

Table 3-9 Procedure for Extracting Sensor from Pressurized Process

Step
1
If a water line is connected, open the water shut-off valve.
Note: If a water line is plumped to the insertion hardware assembly, it will help counterbalance the
pressure of the process and minimize the force need to extract the sensor.
2 While firmly holding the sensor/extractor shaft assembly in place, loosen and remove the retaining
cap (item G). Permit the sensor/extractor shaft assembly to slowly move to its maximum outward
travel. This ensures that the sensor has cleared the ball valve opening.
3 If a water line is connected, close the water shut-off valve, and then immediately close the ball valve
(item B).
4 To remove the sensor for routine maintenance and calibration;
a Loosen and remove the lock ring (item F).
b Firmly extract the sensor/extractor shaft assembly from the insertion hardware.
18 Series 5000TC Toroidal (electrodeless) Conductivity Sensors - Operation and Maintenance
Action
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