Powerex Medical FirstCall MFLD-LIQ-NFPA-GG-PSI, Руководство по эксплуатации и техническому обслуживанию

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FirstCall™ Liq x Liq Medical Gas Manifold
Operating & Maintenance Manual
Powerex • 150 Production Drive • Harrison, OH 45030 • USA
P 1.888.769.7979 • F 513.367.3125 • www.powerexinc.com
IN599800AV • 15 January 2021
Page 12 of 24
The Powerex FirstCall™ Manifold is factory-set with a
5 minute screen saver. The screen goes dark after 5
minutes, but reactivates if there is an alarm or if the
screen is touched.
To disable the screen saver, press the “DISABLE
SCREEN SAVER” button.
Screen brightness is set to 50% from the factory.
This can be changed higher or lower depending on
preference.
To maximize the lifespan of the screen, Powerex
advises that the screen saver remain enabled and the
default screen brightness be no higher than 50%.
Maintenance Mode (image toggled)
When Maintenance Mode is toggled, the manifold will
not generate an alarm during a normal alarm event.
This enables a technician to perform maintenance
without setting off an alarm signal.
Maintenance mode automatically toggles back to
normal after 15 minutes. A timer is displayed right
below the button.
On the main screen, a yellow bar that reads “IN
MAINTENANCE MODE” displays on the top.
Startup & Verification of Changeover
Power the manifold on. Verify on the screen that all 3
banks read EMPTY.
SLOWLY open one cylinder valve on the left bank. The
left bank pressure gauge inside the cabinet and the
graphical display on the screen should show the full
pressure of the cylinder. It should read “IN USE” with an
arrow over top of the left bank cylinder display.
SLOWLY open one cylinder valve on the right bank.
The right bank pressure gauge inside the cabinet and
the graphical display on the screen should show the full
pressure of the cylinder. It should read “READY” over
top of the left bank cylinder display.
Turn off all open cylinder valves on the left bank. Using
the bleed valve on the left final line regulator, create a
slight flow of gas. The left bank pressure should fall and
the PLC will automatically switch over to the right bank.
Delivery pressure remains constant. Left bank will show
EMPTY in red and the Changeover to Secondary Supply
alarm should activate on the Master Alarm and on the
home screen.
Close the bleed valve on the left final line regulator
and SLOWLY reopen the cylinders on the left bank. The
left bank pressure gauge and graphical display should
return to full pressure. The left bank will now show
“READY” above the cylinder graphic. The Changeover to
Secondary Supply alarm will stop.
Repeat the last two steps to simulate an empty right
bank.
To test the Emergency reserve function and alarms,
SLOWLY open both the left and right bank valves, as
well as one emergency reserve high pressure cylinder
valve. The left bank should read “IN USE” and the right
bank should read “READY”, and both banks should