GE Sievers 500 RL, Operation And Maintenance Manual, Page: 145 / 186

GE Analytical Instruments ©2010 145 of 226 DLM 74001-04 Rev. A
Chapter 7: Maintenance
12. Reattach the sample pump tubing. Tubing on the left side of the pump head should run to either length
of the Masterflex tubing on the left; tubing on the right side of the pump head should run to either fork
of the “Y” tubing.
13. Record the installation date for the pump heads in the service log (see Table 15 on page 151).
14. If you need to replace other consumables, follow the procedures listed in the appropriate sections of
this chapter. Otherwise, close and latch the Analyzer door.
15. Restore power to the Analyzer.
16. Enter the installation date for the pump heads by following the procedures in “Setting the Installation or
Date for New Consumables” on page 149.
Figure 36: Replacing the Sample Pump Heads
Replacing the DI Water Cartridge
The ion exchange resin (resin bed) within the DI water cartridge depletes over time. With typical Analyzer use,
the DI water cartridge should be replaced after every 24 months of operation.
To replace the DI water cartridge, you will need the new cartridge; paper towels; and the water bottle, John
Guest fitting tool, and tray from the accessories kit. While replacing the DI water cartridge, you will need to
remove the four connections to the cartridge. All connections are labeled, but if necessary refer to Table 14 on
page 148 when reattaching the tubing.
1. If the Analyzer is taking measurements, press the Stop Analysis button.
2. Turn off the Analyzer by using the main power switch; also switch off the external circuit breaker for the
Analyzer.