GMI First Responder, User Handbook Manual

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FIRST RESPONDER - USER HANDBOOK
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flammable range to increase sensitivity to smaller leaks
and a Carbon Monoxide (CO) range for internal
atmosphere monitoring where odour call response is
required.
This instrument has the added advantage of providing the
option of two external (EXT) range diffusion probes. The
first is a Semiconductor Sensor “Flexi” Probe, which
features a high speed sensor to enable rapid response in
detecting small fitting leaks. The second is a Semiconductor
Survey “Bellows” Probe which features the same high
speed sensor but has the added advantage of providing
an almost instantaneous response by pumping the sample
past the sensor thus eliminating any delay in diffusion.
These high speed response and sensitivity Semiconductor
Sensor Probes also enable initial external leakage surveys
to be performed in the vicinity of property or pipelines
enabling distribution leaks to be quickly found. The
instrument monitors all gases continuously, providing all
round protection for users.
The First Responder is equipped with both audible and
visual alarms and Geiger indications on the EXT and PPM
flammable ranges.
The First Responder contains the following ranges:
• 0 to 10,000 ppm flammable EXT Range (External
Semiconductor Sensor)
• 0 to 1000 ppm Flammable
• 0 to 100% LEL
• 0 to 100% Volume gas
• 0 to 1000 ppm Carbon Monoxide