GA5000 Gas Analyzer
OMGA5KN4.6
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14.0 Glossary of terms
5000 series
The 5000 series refers to the GA5000, GA5000
and the Biogas5000 gas analyzers.
Analyzer error messages
Operational errors are prefixed on the analyser
by the word ERROR followed by an error code.
Refer to the list of standard error codes for
more information.
Analyzer warning
Analyzer warnings are prefixed by the word
WARNING followed by a relevant description.
There are two types of warning messages
displayed; general warnings that may not
necessarily affect the instrument’s function (for
example, battery power low) and operational
parameters that could affect the performance of
the analyzer(for example, CH
4
out of
calibration).
Anemometer probe
Device for measuring velocity of gas in the pipe.
The GA5000 analyzer can be set to convert into
a flow. See also flow measurement.
ATEX certification
The GA5000 is ATEX certified to zone 1 & 2
areas above ground not in mines.
Auxiliary channel
This refers to the channels where external
devices will be connected or displayed.
Backlight
The analyzer has a built-in backlight for low
ambient light conditions. This can be toggled
on/off using the backlight key.
Barometric pressure
The atmospheric pressure at the given location.
Borehole
Typical location from which a gas sample is
obtained.
Calibration
The gas analyzer is carefully calibrated against
known standards.
Calibration record
The GA5000 instrument has the facility to log
user calibrations as a validation tool.
CH
4
Methane
Chemical cells
A method of gas detection that works on the
basis of a chemical reaction with the target gas.
CIRIA
The CIRIA guideline ‘Assessing the risks posed
by hazardous ground gases to buildings’
proposes that gas concentrations and flow rates
should be monitored.
