2 Installation
2.6 Gas supply plumbing
22
GC-2010 Plus
CAUTION
GAS PLUMBING PRECAUTIONS
The pressure regulator valve will be damaged if pressure above its
specifications is applied.
Set the gas inlet pressure within the allowable maximum pressure
range.
CAUTION
Hydrogen gas supply precautions
Make sure that the supply pressure to the flow controller does not
exceed 500 kPa.
If the flow controller fails with a hydrogen gas supply pressure over
500 kPa, a dangerous situation exists. Lange amounts of leaking
hydrogen could cause the FID flame to expand out of the detector.
Hydrogen gas is lighter than air. If it leaks, it can accumulate near the
ceiling. Pay strict attention to ventilation so that leaking hydrogen is
vented out of the room and cannot accumulate.
CAUTION
Supply pressure
When the GC shares gas supplies with other insturmentation, check
all instrument specifications in order to provide adequate gas supply
pressures for all the instruments.
WARNING
Hydrogen carrier gas precautions
If much hydrogen gas is released into the poorly ventilated room, it
may cause the explosion.
1.In order to prevent hydrogen gas accumulate in the room, attach
tubes to split vent, purge vent, TCD vent and ECD vent. Discharge
the gas to open air or a ventilation equipment (such as the draft
chamber).
2.Install the GC in the well ventilated area. (Ex. in the draft chamber)
3.In order to measure hydrogen gas concentration, equip a hydrogen
gas sensor in the room. Keep the hydrogen concentration low.
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