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If in the course of bar holing, water is encountered, press the left “Stop” button to stop the
pump. Use of a water-stopper (see Figure 2 in Section 8) will prevent water from entering the
instrument.
Purge:
The purge mode measures the concentration of natural gas in nitrogen with a
resolution of 0.1% by volume from 0.0% to 100.0% as sensed by the thermal conductivity sensor.
Purging air-filled lines into service requires lowering the oxygen content to less than 9.7% (or
natural gas concentration over 70%).
WARNING: If a check is to be made for trace amounts of gas, for example around the
foundation of a structure, the Monitor or the Track Gas – not the Bar Hole
- mode should be selected.
Summary of Contents for GAS-EXPLORER II EGI-201
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