MODES OF OPERATION
18
Pipeline Gas Test (PGT)
In this mode, the GS700 is used to discriminate between
pipeline gas (natural gas) and non pipeline gas (e.g. landfill
or swamp gas).
Typical features:
• Discrimination between gases
• Pump Control
• Sensor Zeroing
When sample testing, the GS700 discriminates the gas
and displays the results, as follows:
Pipeline Gas
• Pipeline gas identified
• Peak gas reading displayed
• Green visual 360 LED’s activated
Non Pipeline Gas
• Non Pipeline gas identified
• Peak gas reading displayed
• Red visual top plate LED’s activated
The live result of the Pipeline gas test will be displayed
until the gas reading drops below the decision point
(approximately 20% LEL). The option to clear the result is
now presented.
• Press
B3
to clear result and peak gas reading.
• The following test information is logged when each
result is cleared:
»
Decision
»
Peak reading
»
Time and date
»
GPS location
»
User ID
