13-1
OPERATOR MAINTENANCE
13.1 CLEANING
CAUTION: Do not use polishes containing silicon or solvent to
clean the instrument as these may damage the ammable gas
sensor. Do not use abrasive materials or strong volatile chemical
solutions as these could damage the impact resistant casing.
The outer, impact resistant casing of the
GT series
instrument may
be cleaned using a non-abrasive moist 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 more stubborn marks.
13.2 FILTER REPLACEMENT
The instrument is tted with both a dust lter and a hydrophobic type
lter protecting the instrument sensors from the ingress of dust and
moisture respectively. The lters are located in the probe and should
be inspected periodically for signs of contamination and / or damage.
WARNING: It is essential to perform a leak check after
instrument lter replacement.
13
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