GMI First Responder, User Handbook Manual

Page: 29 / 104

2-11
Probe Handle Assembly - Part No. 13561
A Water or Dust Filter Assembly is available from GMI for
use with this probe handle. Either of the filter assemblies
can be attached to the probe handle. Filters must be
checked at frequent intervals and where appropriate
changed to ensure a clean sample path.
Any filter which has been contaminated must be cleaned
or replaced. See Filter Replacement in Section 5
OPERATOR MAINTENANCE.
Liquid Crystal Display (LCD)
The LCD shows the current gas readings in both analogue
and digital form together with operational and status
information. The display is protected by a toughened glass
cover. Backlighting is provided to enable the display to be
seen under low ambient light conditions.
Before Use Checks
The following checks should be carried out before using
the instrument on site:
• The instrument is clean and in good condition.
• The batteries have sufficient power left in them
for the intended use of the instrument.
• The filters are clean and in good condition.
• The sample line and aspirator bulb (if used) and
any accessories are in good condition and leak
free.
• Use only Semiconductor Sensor (Flexi) Probe or
Semiconductor Survey (Bellows) Probe with Cer-
tificate No. Sira ATEX2448X (if applicable)
GENERAL INFORMATION