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Maintenance
Cleaning
Display Window
• An optical cloth MUST be used to clean the display window, as the window is susceptible
to scratches. In extreme cases a mild screen solution may be used with the optical cloth
to remove stubborn stains.
Outer Casing
• The outer, impact resistant, casing of the GS700 may be cleaned using a non-abrasive
damp cloth. Rub the cloth over the outer casing to remove any dirt and grime. In extreme
cases, a mild soap solution may be used with a non-abrasive cloth to remove stubborn
marks.
!
Do not use polishes containing silicon or solvent to clean the instrument as these may
affect the gas sensors.
!
Do not use abrasive materials or strong volatile chemical solutions as these could damage
the impact resistant casing.
Probe Handle Filter Replacement
Hydrophobic and cotton particulate lters in the probe handle minimise the danger of water and
dust ingress.
If a blockage occurs, the message ‘SAMPLE FAULT’ will be displayed. Check the sample line and
probe handle for a blockage. When cleared, press
B1 to continue.
Replace the lter(s) if the message does not clear.
To replace the lter(s):
1. Unscrew the probe handle assembly.
2. Remove the cotton particulate lter and
discard.
3. Remove the hydrophobic lter.
4. Clean the probe handle to make sure it’s
free from dirt and water.
5. Fit a new cotton particulate lter.
6. Fit the new hydrophobic lter. The yellow
label on the lter ts against the yellow
label on the probe handle.
7. Reassemble the probe handle assembly.
Hydrophobic Filter
Cotton Particulate Filter
Probe Handle Assembly
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