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Specifi cation
Instrument Performance
Gas
Sensor Type
Range
Resolution
ppm
Semiconductor
0 - 10,000 ppm
1 ppm
Infrared
0 - 10,000 ppm
25 ppm
LEL
Infrared
0 - 9.9%
10 - 100%
0.1%
1%
Volume Gas
Infrared
0 - 5%
5% - 100%
0.1%
1%
CO
Electrochemical
0 - 1000 ppm
1 ppm
O
2
Electrochemical
0 - 20.9%
21% - 25%
0.1%
1%
H
2
S
Electrochemical
0 - 100 ppm
1 ppm
Instrument performance complies to the following standards:
• Flammable - BS EN / IEC 60079-29-1
• Flammable - CSA 22.2 No. 152 and ANSI/ISA-12.13.01
• Toxic - BS EN 45544
• Oxygen - BS EN 50104
GS700 will indicate if the gas sample is natural gas or Methane, providing:
• The measured sample is >1.5% Volume Gas
• The sample source contains a minimum of 2% Ethane
i
All the values are typical at normal temperature and pressure. Humidity is between 0%
and 90% (non-condensing). Pressure changes at the inlet and exhaust are minimised as
they may cause transient changes in reading.
