Honeywell GasLab Q2 - Connecting and replacing gas cylinders

MAINTENANCE, CLEANING AND REPAIR
Information for general use
Rev. M / 73023639
242
GasLab Q2
10.3. Connecting and replacing gas cylinders
For the correct operation of the GasLab Q2 a gas cylinder with a binary mixture of methane (CH
4
)
and carbon dioxide (CO
2
) is connected to the instrument. This should be replaced as soon as the
outlet pressure can no longer be held at a stable level. This will generally take place at around
0.5MPa ≙ 72.52psi ≙ 5bar, depending on the regulator.
Some situations, for example, a verification or a service calibration, make it necessary to connect
further gas cylinders or replace the existing ones.
This work must be carried out according to the steps described here. A suitable pressure reduction
is necessary, if not already existing, to connect the gas cylinder with the GasLab Q2.
Complete the following steps in accordance with national regulations on the basis of the
information in this document. Failure to do so may result in significant destruction of the
device or the system.
Suivez impérativement les étapes suivantes conformément aux normes locales en
respectant les instructions de ce manuel. Le non-respect de ces étapes peut entraîner des
dommages importants sur l’appareil ou l’installation!
Step
Action: Removing the gas cylinder
1.
Close the main valve on the gas cylinder.
2.
Depressurize the connected gas pipeline.
3.
Remove everything from the gas cylinder connector.
4.
Close the connection thread on the valve with the screw cover (nut).
5.
Place the protective cap onto the gas cylinder and screw it tightly.
6.
Release the anti-tipping device and remove the gas cylinder.
7.
Protect the connection thread for the remaining installation if a new gas cylinder is not
to be connected immediately.