5-5
OPERATOR MAINTENANCE
If a blockage occurs the ‘SAMPLE FAULT’ indicator is
displayed. Check the sample line and filter assembly
for blockage. Press
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 (Fig. 5-5).
Fig. 5-5 Dust Filter Assembly
2. Remove Dust Filter, then discard.
3. Check Probe Washer and Probe Sealing Washer for
signs of damage or wear and replace if necessary.
4. Fit new Dust Filter.
5. Reassemble the Filter Housing Assembly.
Probe Sealing Washer
Dust Filter
Probe Washer
Dust Filter Housing Assembly
Summary of Contents for GASURVEYOR 7B-500R
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