INFICON 2020ComboPRO Portable Photoionization Detector - Manual (Page 95)

88 ISP-074-575-P1D 88
To replace the inlet filter:
1. Turn off the instrument. Unscrew the filter housing from the detector
housing. Be careful not to lose the O-ring seal.
2. Remove the Teflon®/Polypropylene filter and install the new filter (Part
No. MX750100). Place the filter so that the Teflon side is facing down
in the filter housing and the mesh side is facing the 2020ComboPRO.
Figure 28. Replacing the Inlet Filter
Handle the filter disk only by the edges. The mesh may be damaged or
contaminated by excessive handling. Use forceps if possible.
3. Replace the filter housing.
4. Recalibrate and then continue normal operation.