GASLAB Q2 AFTER DELIVERY AND AT THE PLACE OF USE
Information for general use
Rev. M / 73023639
5.3.4. Connect the calibration gas
For proper operation of the GasLab Q2 a regular automatic calibration with a binary mixture of
methane (CH
4
) and carbon dioxide (CO
2
) is necessary. Normally the mixture is taken from a gas
cylinder close to the instrument. 11.3 List of suitable gases and calibration gases
Prerequisite: A suitable pressure reduction and shut-off devices are required to connect the gas
cylinder to the GasLab Q2 via the permanently installed lines.
Honeywell can supply prefabricated boards
with high pressure reduction systems for this purpose.
If an automatic verification measurement is to be carried out via the calibration gas inlet, an
additional automated 3-way valve must be installed in the gas flow. Only clean, particle-free gas can
be used at this inlet.
Complete the following steps in accordance with national regulations on the basis of the
information in this document. Suivez impérativement les étapes suivantes conformément
aux normes locales en respectant les instructions de ce manuel.
Refer to / Respectez les 10.3 Connecting and replacing gas cylinders
Failure to do so may result in significant destruction of the device or the system. Le non-
respect de ces étapes peut entraîner des dommages importants sur l’appareil ou
l’installation!
Action: Prepare the calibration gas line connecting the device
Connect the end of the line intended for the device connection to the vent gas
properly using a hose.
Carefully open the shut-off valves to create a permitted gas flow above the operating
conditions. Then flush for around 30 seconds to clean the pipeline system.
Close the line shut-off again. Set to a process gas pressure between
0.15 MPag ≙ 21.76psig ≙ 1.5barg and maximum 0.25 MPag ≙ 36.26psig ≙ 2.5barg.
(The exact pressure will be set later).
The line is now ready for connection to GasLab Q2 which should be done immediately.
Therefore, remove the protection (plugs / screw plugs) from the (CAL) inlet of the
instrument and connect the gas line - according to figure 5.2.
Carefully open all the shut-off valves in the gas path so that the gas is present at the
device inlet
Check the tightness of the calibration gas path from the source (gas cylinder) to the
device 10.1.10 System tightness test
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