2 Installation
2.6 Gas supply plumbing
21
GC-2010 Plus
Q Precautions on handling hydrogen gas
WARNING
HYDROGEN GAS PRECAUTIONS
Hydrogen can explode if it is allowed to accumulate in a poorly venti-
lated area.
1.Connect gas lines correctly. Hydrogen is released into the room if
the tubing is accidentally connected to the air inlet.
To prevent an improper connection, the GC-2010 Plus is equipped
with a right-handed thread at the air inlet joint and a left-handed
thread at the hydrogen inlet joint.
2.When the unit is not in use, close the main valve of the hydrogen
gas cylinder. Check for leaks at the main valve.
3.Every time the unit is used, check for leaks along the flow line from
gas cylinder to the unit interior.
4.To prevent an explosion due to a hydrogen gas leak, the room in
which the unit is used should be well ventilated. Prohibit the use of
open flame in this room.
5.Close the main valve of the hydrogen cylinder immediately after
completing the analyses. Then, turn OFF the unit and perform
normal shut-down procedures.
WARNING
HYDROGEN GAS HANDLING PRECAUTIONS
The accumulation of hydrogen gas inside the column oven can cause
an explosion.
Close all hydrogen pressure regulator valves when not in use, and
seal the column connection.
Capping the Detector Fitting.
Graphite ferrule
with a wire
Column nut
Detector
Thermal
insulation cup
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