ARMY TM 10-4610-309-14
MARINE CORPS TM 10802A-14/1
0062 00
TACTICAL WATER PURIFICATION SYSTEM (TWPS)
UNIT MAINTENANCE PROCEDURES
CONTROL INSTRUMENTS
WARNING
Electrical hazard. Army personnel: make sure that the generator is off and the
TWPS main breaker is off before working on the conductivity elements. Marine
Corps personnel: make sure that the TWPS is disconnected from its power source
before working on the transmitter. Failure to observe this warning could result in
serious injury or death from electrical shock.
NOTE
Make sure that the piping connection where the sensor is to be removed has been
depressurized and drained.
1. Make sure the TWPS is in Standby Shutdown with Drain-Down. Refer to WP 0017.
2. Remove the sensor as follows:
NOTE
Place a bucket under the sensor to catch any liquid still in the piping system.
a. Remove the sanitary clamp and gasket that secure the sensor in the process pipe and
pull the sensor out of the pipe (see Figure 8 for the location of the conductivity sensors).
b. Inspect the gasket for damage and replace if necessary.
SANITARY CLAMP
LOW RANGE CONDUCTIVITY
ELEMENT (SENSOR) CE-501A
GASKET
SANITARY CLAMP
HIGH RANGE CONDUCTIVITY
ELEMENT (SENSOR) CE-501B
Figure 8. Conductivity Sensors Location.
0062 00-18
