INFICON Explorer Portable Gas Chromatograph - Manual (Page 240)

Maintenance and Troubleshooting
238
Replacing the Sample Inlet Filter
WARNING
Do not remove or replace the inlet filter in hazardous locations.
Explorer is equipped with a combined dust and water filter to reduce detector
contamination. As the filter collects dust, Explorer’s inlet flow rate and sensitivity
decrease. The filter will not allow water to pass through, but the filter will not
stop all solvents.
CAUTION
Do not aspirate liquid samples with Explorer.
Replace the filter on a weekly basis, or more frequently if Explorer is used in a
dusty or wet environment. You must replace the filter if Explorer has been exposed
to liquid water. If you are sampling hot gases or vapors, condensation in the sample
line may also affect the filter. The pump will sound labored when the filter requires
replacement.
1. Turn the instrument off.
2. If you are using a three meter sample line or an extension probe, remove the
probe from the sample in port.
3. Unscrew the filter housing from the inlet housing.
Be careful not to lose the o-ring seal.