Thermo Scientific Orion 2117HL User Manual page 81

Analyzer Maintenance
Replacement of
Sample Inlet Filter
Thermo Scientific Orion 2117HL High Level Chloride Analyzer User Guide
1. If the sample flow can be adjusted with the pressure regulator to
50 mL/minute or more, skip this procedure.
2. Turn off sample flow by turning the inlet valve to the right.
3. Remove the filter hex cap using a 1 inch open-ended wrench.
4. Separate the filter cap with bypass/needle valve assembly from the filter
body, retaining the ring.
5. Remove the filter element and soft gasket (if necessary).
6. Replace the gasket and press a new sintered element into the filter body.
7. Replace the hex cap and bypass/needle valve assembly and reposition
the bypass drain line into the drain assembly.
8. Retighten the hex cap to approximately 75 pound-inch in torque.
9. Turn on the sample flow by turning the inlet valve left.
10. Check for leaks.
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