21May / 2011
GasClam® is an in-borehole ground-gas monitor, providing unmanned data collection of ground-gas concentrations. It collects data of high temporal resolution, sampling at frequencies as high as three minute intervals.
The gases measured are:
- Carbon dioxide
- Carbon monoxide
- Hydrogen sulphide
- Total Volatile Organic Compounds
Also measured are environmental parameters, atmospheric pressure, borehole pressure and temperature. These allow correlations to be drawn and ground-gas drivers to be identified.
GasClam® seals into a standard 50mm borehole or larger, GGS also have experience of installing GasClam® in alternative locations, see GasClam® specification for more details.
GasClam® is intrinsically safe and ATEX approved, so it can be used on sites where there are explosive ground-gas concentrations.
GGS owns the largest fleet of GasClam®s in the country. GGS staff is experienced in using the instrument in the field, as well as being competent in data download, analysis and interpretation.