GE Sievers 900 Series Operation And Maintenance Manual page 189

changed is to periodically measure the flow rate of water out the waste line from the IOS System
and replace the filter element when the flow rate starts to decrease.
It is desirable to replace the filter element on a routine basis to prevent clogging. For this procedure,
two 3/4" wrenches are needed. To replace the filter element, follow these steps:
1. Stop the Analyzer by pressing the Stop Analysis button.
2. Turn off the Analyzer using the main power switch.
3. Shut off the water to the sample inlet system.
4. Remove the filter by loosening the Swagelok nuts on the 1/4" Teflon tubing and
disconnecting the tubing.
5. Position the 3/4" wrenches on the ends of the filter (see Figure 37). Loosen the adapter on
the inlet side of the filter.
6. Unscrew the spring-loaded inlet adapter, taking care not to lose the spring.
7. Remove the old filter element from the body of the filter.
8. Insert a new filter element into the body of the filter, opened end first.
9. Replace the spring in the inlet adapter and screw the inlet adapter into the body of the
filter.
10. Secure the inlet adapter by tightening approximately one-quarter turn past finger-tight.
11. Reconnect the 1/4" Teflon tubing from the sampling port adapter to the inlet of the in-line
filter. The in-line filter has arrows on the body of the filter that indicate the direction of flow
through the filter. Tighten the nut one-quarter turn past finger-tight.
12. Reconnect the 1/4" Teflon tubing to the outlet of the filter and tighten the nut one-quarter
turn past finger-tight.
13. Turn on the water supply at the sampling port.
14. Turn on the Analyzer using the main power switch.
GE Analytical Instruments ©2009 189 of 236 DLM 90488-01 Rev. A