Connect Q2 To Process Gas Line And Complete Fluidic Installation; Leak Testing Of Installation - Sony Multiscan CPD-1304S Service Manual

5

5.3.6 Connect Q2 to process gas line and complete fluidic installation

Working steps to connect device with process gas line
Ensure that all work required according to the preceding sections in chapter 5 was
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1.
carried out. Particularly the flushing of the gas lines
Make sure that the process gas line is connected to the sample probe according to
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2. chapter 5.3.3. Check in particular that the shut-off valve in the process gas line is
closed. (If a pressure regulator is installed, it has to turn to to its lowest setting)
Make sure that there is a process gas pressure subsequently present that is suitable
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3.
for the inlet pressure range of the Q2 from 0.15 to 0.5 MPa (g).
Remove the protection (blanking plugs / sealing screws) from the entrance of the
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4. device and connect the gas line for process gas (PG) - according to Figure 10.3 on the
input.
Then slowly increase the pressure to the desired setting by carefully opening all valves
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5.
and pressure regulators in the process gas line.
The needle valve on the right side of the device is only used for regulation; it
is not a cut-off valve and must never be completely closed.
After completion of the entire installation, when all gas lines are connected
and pressurized, a leak test must be carried out. Since the test can not take
place at all parts when the device is switched off, the leak test for these parts
must be carried out or made up first while the device is running.

5.3.7 Leak testing of installation

Leaks in the gas supply lines increase the risk of explosion and may lead to
inadequate measurement results.
Steps for leak test:
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1. Close the valves by interrupting the power supply to the Q2. (if it is already in use)
Apply pressured gases to all inlet gas lines of the measuring device so that a gas
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2.
volume is present in the lines.
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3. Check the whole installation for leaks with a gas detector.
If a leak is detected it has to be fixed (sealed) immediately.
4.
Stop the gas supply! Seal the leak! Repeat the leak test!
5. Do not execute any other acts or work before everything is tight!
Page 36 of 135 G a s Q u a l i t y A n a l y z e r
Transport, storage, installation
GasLab Q2