GMI PPM Gasurveyor 500, User Handbook Manual

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PPM GASURVEYOR 500 USER HANDBOOK
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Caution: The instrument should never be switched on
without suitable filters installed.
If a blockage occurs the ‘SAMPLE FAULT’ indicator is
displayed. Check the sample line and filter assembly for
blockage. Press Button One
to clear the ‘SAMPLE
FAULT’ message. Replace the filter if the message does
not clear.
In-line Dust Filter (Accessory)
To replace the Dust Filter in the Dust Filter Housing
assembly, proceed as follows:
1) Unscrew the filter housing assembly (Figure 4.3).
Probe Sealing Washer
Dust Filter
Filter Housing
Sealing Washer
Dust Filter Housing Assembly
Figure 4.3 Dust Filter Assembly
2) Remove Dust Filter, then discard.