5
Transport, storage, installation
Page 34 of
135
G a s Q u a l i t y A n a l y z e r
GasLab Q2
Steps to connect the gas cylinder
4.
A cylinder pressure reduction with overpressure protection must be provided.
5.
►
Make sure that the regulator* is set to the lowest setting and the shut-off valve (if
present) of the pressure regulator to be connected is closed.
6.
►
Close the cylinder connection of the high-pressure reducer or cylinder pressure regulator*
to the valve connection of the gas cylinder.
Do not put any oil or grease on the
threads.
7.
►
Flushing of the pressure reduction (see below) is recommended at this point for accuracy
reasons.
8.
►
After rinsing, the outlet of the pressure reducer is to be connected via a high-pressure
hose or a fixed pipe to the corresponding intake of Q2. If this is not yet possible cap the
gas line with a dummy plug to continue with step 9 at a later stage.
9.
►
Open the main valve of the gas cylinder. Adapt the output pressure of the pressure
regulator* to the required pressure for the the working pressure approx. 0.2 MPa (g)
Maximum pressure of 0.25 MPa (g)
10.
►
Check for tightness carefully.
Working steps for manual flushing of a pressure regulator*
1.
►
Make sure that the following preconditions are fulfilled:
1. Steps 1 to 6 of the gas cylinder connection procedure (see above).
2. A gas flow can take place in the parts to be flushed. To be able to flush (purge)
the gas line and its components it should be disconnected form the GasLab Q2
(gas bottle closed!). Make sure the gas can be vented in a professional safe way.
2.
►
Slowly open the main valve of the gas cylinder.
3.
►
Establish the gas flow, and observe it by flow indicator. Do not exceed the maximum
permissible pressures.
4.
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Now close the main valve of the gas cylinder.
5.
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If the output pressure of the pressure regulator* has almost fallen to zero due to discharge
of gas, open the gas cylinder shortly and close it again.
6.
►
Repeat step 5 to ensure that there is no more air or other contamination left in the dead
volume of the regulator. After a total of 5 cycles (filling / draining), everything will be
flushed out.
7.
►
After the flushing process, continue immediately with step 8 of the gas cylinder connection
procedure (see above) to prevent any contamination from entering the regulator again.
(*not part of Q2, make sure to use a type that meet the specifications and standards if not from Elster)
