GasClam 2 Instrument User Manual
Ion Science Ltd.
Unrivalled Gas Detect
ion.
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19
Regular Checks
It is recommended that at least once a month (or sooner depending on the power option and logging interval) the
GasClam 2 is safely removed from the borehole and inspected outside the hazardous area in a dry location. When
removed:
•
Inspect the GasClam 2 for any signs of wear and tear (especially the Filter Cover Tube).
•
Check for signs of water ingress prior to purging the unit (see section “Effects of Flooding”).
•
If there are no signs of water ingress, purge the unit.
•
Download and backup the logging data.
•
Check the data for any faults (see Software Manual) and if required take appropriate action.
•
Change batteries if required and check the integrity of the battery O-ring.
•
Check and change the Moisture Filter if required (see section “Service”).
•
Perform a Bump Test on the sensor channels if required (see Software Manual).
Note: If conditions of 85% and higher RH and +40°C are expected to have persisted for more than 10 days the H
2
S,
CO and O
2
sensors may need to be reconditioned (see section “Specification”).
Data Retrieval
Manual Download
Remove the GasClam 2 from the borehole using the Lifting Handel. Take
the GasClam 2 outside the hazardous area.
Under no circumstances take or connect a laptop to the GasClam 2 in a
hazardous area!
Place the GasClam 2 on a clean dry surface and wipe the head around
the Com Port Cap if dirty. Connect the GasClam 2 to the PC using
procedure previously described.
Download the data using the software as described in the Software
Manual. Sampling will cease when the GasClam 2 logging memory is full.
Ensure memory is cleared for extended sampling once logging data has
been checked, validated and backed-up.
Leaving the Site
When leaving the site after a regular visit, check as before. If leaving the site after monitoring is complete ensure
that the borehole is secured safely and not open.
Calibration, Servicing and Storage
Unit Calibration and Service
To ensure correct and accurate operation it is recommended that the GasClam 2 should be recalibrated and
serviced every 12 months (or sooner depending on the logging interval and sensor configuration). The GasClam is
ATEX certified for use in potentially explosive areas, therefore it must only be serviced and fully calibrated by an
authorised GasClam 2 service centre. Failure to do so will invalidate the warranty and may invalidate the
certification.
