GasClam 2 Instrument User Manual
Ion Science Ltd.
Unrivalled Gas Detect
ion.
ionscience.com
15
floating on top of the water in a borehole the water proximity sensor will not detect it and therefore it can be
sucked into the GasClam.
How the GasClam 2 Prevents Water Entering From Above
To prevent water reaching the vent pathway the Snorkel Set should
always be attached to the Vent Barb. The open end tube should be
supported so it is located at the top of the Headworks to reduce the
chance of water ingress.
In locations where the Headworks are likely to be flooded the Vent Barb
must be replaced with the Vent Plug. The supplied box spanner is used
to remove the Vent Barb and the supplied Alan key (no.4) used to insert
the Vent Plug and washer.
If the Vent Plug is inserted it should be configured in the software (see
software “Setup”). Atmospheric pressure will not be recorded in this
mode.
Optimising GasClam 2 Performance
Read the ‘Cross sensitivities and sensor performance’ section to
understand how each gas is detected and the implication of
environmental conditions on their detection.
Understand the implication on sampling and bump testing if a 5% CO
2
sensor is installed (see section “Technical Specification”).
Periodically (on a monthly basis) the GasClam 2 should be removed from
the borehole if installed for long periods and checked (see section “Site
Visit”).
If conditions of 85% RH and 40°C have persisted for more than 10 days
the H
2
S, CO and O
2
sensors may need to be reconditioned (see section
“Service”).
The GasClam 2 software (see Software Manual) offers a selection of
venting options during logging.
Start Monitoring
Changing Batteries
WARNING
: For reasons of intrinsic safety, batteries MUST NOT be changed within hazardous areas. Always
ensure you are in a safe area before carrying out any type of work on your GasClam.
WARNING
: To maintain the Unit’s certificat
ion and intrinsic safety use ONLY GasClam approved batteries.
