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GEM5000 Gas Analyzer
8.9 How to use a pitot tube (optional)
The GEM5000 gas analyzer enables the site engineer to take gas measurements using a
pitot tube. The pitot tube is used for gas extraction systems and the pressure readings
are taken in mbar. Gas flow is calculated in the analyzer in m
hour).
Fitting a pitot tube to the analyzer:
1) It is important to seat the pitot tube into the monitoring point with the tip facing into
the gas flow. The pitot tube should also be housed half way down the monitoring
pipe. (Please refer to the anemometer instructions, which detail how to calculate the
pipe diameter correctly).
2) Make sure that the sample tubing attached to the pitot tube fits correctly.
3) Attach the sample tube from the top connection of the pitot tube to the 'blue port'
(the differential port) on the analyser making sure that the gas port connector secure
into place.
4) Attach the sample tube from the side of the pitot tube to the 'white port' (inlet
port/static pressure port) on the analyser making sure that the gas port connector
secures into place.
5) House the pitot gland correctly onto the monitoring point.
6) When taking a gas reading and flow measurement follow the instruction as displayed
on the front of the instrument.
Note:
Example of a pitot tube
Please refer to the following section for a diagram showing how to fit the
tubing to the pitot tube.
OMGEM5KN4.7.1
3
/hr (metres cubed per
Page 47 of 70
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