Concoa 5237 Series 설치 및 작동 지침 매뉴얼 - 페이지 7

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OPERATION

3.1 PREPARING FOR OPERATION

With regulator connected to cylinder or pipeline downstream equipment

in stalled and valves closed, and the ajdusting screw released, prepare for

op er a tion as follows:

a. Observe precautions in SAFETY Section.

b. Before pressurizing an oxygen regulator, make sure it has been

drained of residual gas.

c. Open the cylinder or upstream valve slowly to avoid a sudden

pres sure surge that may damage internal regulator parts.

Gas will ﬂ ow from outlet of ﬁ xed-pressure regulator when valve is opened.

Inlet gauge, if any, will show supply pressure. Stand to one side to avoid

injury in case of regulator failure.

d. Slowly turn adjusting screw clockwise until the outlet gauge

indicates the desired pressure.

e. To reduce pressure, allow gas to discharge from regulator towards a

safe area, and turn adjusting screw counterclockwise, until desired

pressure is indicated on the gauge. Stop gas discharge.

To prevent explosive gas mixtures, in hose or in downstream

equip ment attached to regulator outlet, purge gas line by opening

equip ment discharge valves and closing them after purging is

completed. (Adequate purging time depends on length and size of

hose.) If more than one regulator is used, close one valve before

opening next one to avoid unsafe or unwanted mixture of gases.

Do not purge oxidizing or ﬂ ammable gases in the presence of

ﬂ ame, lit cig a rettes, or other sources of ignition, or towards person.

g. Test connections with a leak detection solution (See SAFETY

Sec tion; item O). If no bubbles appear, system is ready for use.

Close cylinder valve whenever the regulator is not in use. To shut down

for extended periods (more than 30 minutes):

a. Close cylinder or upstream valve.

b. Open downstream valve to drain the line towards a safe area.

c. After gas is drained completely, release adjusting screw and close

downsstream valve.

CAUTION