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11
1.
Cycle the handwheel several times to ensure the proper
function of the indicator ring and seat & disc retainer. Close
the handwheel when finished.
5.
Ensure the bleed valve on the MP gauge is still slightly open
and
slowly
open the handwheel to pressurize the system.
While watching the MP gauge, slowly close the bleed valve.
Final Assembly
1.
Turn the handwheel to the
ON
position and check that the
dial indicator is registering 2100 psi / 145 BAR.
NOTE:
Correct medium pressure for the PHODS is
15 - 35 psi / 1 - 2.4 BAR with an inlet pressure of 2100
psi / 145 BAR.
• If a stable MP has been achieved, note the pressure
indicated on the MP test gauge. Cycle the bleed valve
several times and closely monitor the test gauge for several
minutes, making sure the MP has remained stable.
• If the MP exceeds 35 psi / 2.4 BAR, quickly open the
bleed valve and close the handwheel. Refer to
Table 1:
Troubleshooting Guide First Stage
section of this manual
to determine its possible cause.
• If the MP rises more than 5 psi / 0.35 BAR in 5-15
seconds after cycling the bleed valve or “creeps”, this
indicates a HP leak. Refer to
Table 1: Troubleshooting
Guide First Stage
section of this manual to determine
its possible cause.
4.
During the fill process, check for any oxygen leaking from
the bleed valve on the MP gauge. If a leak is detected,
immediately stop the filling process and refer to
Table 1:
Troubleshooting Guide First Stage
section of this manual
to determine its possible cause. If no leak is detected, finish
filling the cylinder and remove the fill adapter from the fill port.
2.
Insert the MP test gauge into the CPC connector. Leave
the bleed valve on the MP gauge slightly open.
Immersion Test
6.
Close the handwheel and open the bleed valve on the MP
gauge to depressurize the system. Remove the MP gauge from
the CPC connector. Refill the cylinder to 2100 psi / 145 BAR.
Pressure Drop Test
WARNING:
If the dial indicator does not read 2100
psi / 145 BAR after twelve hours,
refer to Table 1:
Troubleshooting Guide First Stage section of this
manual to determine its possible cause.
1.
Install the retainer cover (1) and fill port cap.
2.
Providing the first stage / cylinder has passed all testing
and has been filled to 2100 psi / 145 BAR, it is ready for use.
3.
Attach the fill adapter and
slowly
fill the PHODS to 2100
psi / 145 BAR.
2.
Submerge the first stage / cylinder in a tank of clean water
and shake to remove any trapped bubbles. Observe any
bubbles rising from the first stage over a two minute period.
The recommended time is necessary due to slower bubble
formation that occurs in smaller leaks. Bubbles indicate a leak,
which requires first stage to be disassembled to check sealing
surfaces, assembly sequence and component positioning in
order to correct the problem.
1.
Open the handwheel to pressurize the first stage. Check
the dial indicator reads 2100 psi / 145 BAR indicating a full
cylinder. Set the first stage / cylinder in a stable temperature
environment for a minimum of twelve hours. After the time has
elapsed, check the dial indicator reads 2100 psi / 145 BAR.
FIRST STAGE TESTING