TM 55-1930-209-14&P-4
4-7.1.10 Metering pump control unit (Analyzer/XMTR)
4-7.1.10.1 Cleaning and Inspection
WARNING
Make sure metering pump control unit is electrically dead by opening (OFF) power panel 1
circuit breaker 10P5. Redtag circuit breaker with: "WARNING - DO NOT ACTIVATE. REPAIRS
BEING MADE."
a.
Make sure metering pump control unit is electrically dead by opening (OFF) power panel circuit breaker 1 OP5.
Redtag circuit breaker with: 'WARNING DO NOT ACTIVATE. REPAIRS BEING MADE.
b.
Wipe clean exterior of control unit with clean rag. Open control unit door and vacuum clean or clean inside with
electrician's brush. Avoid using solvents for cleaning inside of control cabinet. Solvents leave a greasy film on
components and may reduce electrical continuity.
c.
Visually inspect for indications of bum, corrosion, loose connections, damaged parts, or chipped paint. Clean
corrosion from contacts and terminals and tighten loose connections. Touch up paint according to TB 43-0144.
4-7.1.10.2 Test and repair. Test, calibrate, and repair as given in the Xertex Corp. instruction Manual IDS-924 in
Appendix B.
4-7.1.10.3 Replacement
a.
Removal.
(1)
Make sure metering pump control unit is electrically dead by opening (OFF) power panel 1 circuit breaker
10P5. Redtag circuit breaker with: 'WARNING DO NOT ACTIVATE. REPAIRS BEING MADE."
(2)
Tag and disconnect wiring to control cabinet.
(3)
Remove attaching hardware and remove control cabinet.
b.
Installation.
(1)
Install control cabinet using attaching hardware.
(2)
Connect wiring as tagged.
(3)
Close (ON) circuit breaker 1 0P5 on power panel 1.
(4)
Calibrate control cabinet as given in the Xertex Corp. Instruction Manual IDS-924 in Appendix B.
(5)
Check that control cabinet operates normally. Troubleshoot if necessary as given in the Xertex Corp.
Instruction Manual.
4-7.1.11 Chlorine sensor
4-7.1.11.1 Inspection and repair. Visually inspect sensor for damage and wire connections. Tighten wire connections
or replace damaged wire. Replace screw on membrane cap if tom or ruptured and recalibrate sensor as given on page
24 of the Xertex Corp. Instruction Manual IDS-924 in Appendix B. Check electrolyte level. Add electrolyte as given on
page 24 of the Xertex Corp. manual.
4-7.1.11.2 Replacement
a.
Removal.
WARNING
Make sure power to chlorine sensor is OFF.
4-12
