3 Starting operation
The sequence must be strictly
respected!
Explosion hazard! All parts such as tools
and hands that come into contact with
oxygen must be kept free from oil and
grease.
3.1
Before starting work, the instructions in
this operating manual must be read and
followed during the work!
3.2
Check if the pressure regulator is suitable
for the intended gas type and pressure
(see symbol Point 3).
3.3
Check if the cylinder valve connector and
the seal are clean and undamaged. In
case of any damage, the pressure regula-
tor must not be connected.
Before screwing on the pressure
regulator, open the cylinder valve once
briefly and close it again in order to blow
out any possible dirt. Do not stand in
front of the valve when doing this or hold
your hand in front of the valve. (except
for hydrogen and hydrogen mixtures,
propane, corrosive, toxic and irritant
gases, and flammable test gases). Ensure
good ventilation.
3.4
Connect the regulator with screw con-
nection to the bottle valve (1) using a
suitable spanner or connection bracket
(2) in a gas-tight manner. For regulators
with manual connection (O-ring seal), this
screw connection must be tightened by
hand. No tools must be used for manual
connection. The mounting position of the
regulator must always be vertical in rela-
tion to the pressure gauges.
3.5
Connect the hose to the hose connector
on the outlet stud (7) and to the consum-
er device. Hoses and hose connections
(hose nozzles) shall be used according to
actual and related standard. Secure the
hoses with suitable hose clips.
3.6
Adjusting the pressure
Before releasing the gas into the system, check
the following:
1.
Correct version of the cylinder pressure
regulator
2.
All indicators at zero
3.
Pressure fully turned off on the pressure
adjustment screw (5) (anticlockwise)
4.
Re-adjustment valves are closed.
Then close the shut-off valve (6) and release
pressure and pressure regulator by unscrewing
the pressure adjustment screw (5). Open the
cylinder valve slowly, the high-pressure gauge
(3) indicates the cylinder pressure. Open the
shut-off valve (6) and slightly open the corre-
sponding shut-off valve of the consumer device.
Then screw down the pressure adjustment
screw (5) to set the desired outlet pressure
(operating pressure) and check it on the low
pressure gauge (4). Correct the pressure set-
ting if the pressure dips.
Carry out leak test with Air Liquide leak
detection spray!
4 Stopping operation
•
For short shutdown periods: close the
shut-off valve on the pressure regulator.
•
For longer shutdown periods: Close the
cylinder valve, release pressure, pres-
sure regulator has zero pressure, loosen
pressure adjustment screw (5). Close the
shut-off valves on the pressure regulator
and the consumer device. Never tighten
or loosen screw connectors while they
are under pressure!
