Alarm Conditions - GCE MM40 Mode D'emploi

Re-place empty cylinders with full ones.
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Re-connect high pressure hose to cylinders or cylinder bundles. Use new gaskets, lubricated
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with grease approved for high pressure oxygen up to 250bar (like lubricant).
SLOWLY open gas source shut-off valve and leak test joints with a leak detection fluid.
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SLOWLY open purge valve V4 for 5 seconds to vent "AIR" within the high pressure hose.
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EN
Close purge valve V4.
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Change the position of the lever L, to give normal operation to left-hand side (lever pointing
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up), and open shut-off valve V2 and read the full content of the new cylinders on the inlet
gauge M2. The alarm condition "Change of operating side" will hereby be cancelled.
The right hand side is now the reserve bank with full cylinders.
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7.3. SHUT DOWN
It is possible shut down the manifold only with responsible person agreement in compliance
with EN ISO 7396-1.
For short term (hours) shutdown close shut-off valves V1 & V2.
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For long term (days) shutdown close shut-off valves V1 & V2 and the cylinder shut-off valves.
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8. ALARM CONDITIONS

8.1. ALARM PROCEDURE
On signal of alarm condition the appropriate visual indicator is illuminated on the alarm unit. The
alarm condition shall be recorded and the necessary action taken, as detailed in the sections
below.
8.2. STATUS INDICATED BY GAS ALARM
Always use instruction for the Gas Alarm.
8.2.1. LEAKING RESERVE SIDE (RIGHT LEAKAGE OR LEFT LEAKAGE)
The alarm starts in following situations:
a) Reserve side pressure is too low
Allocate the leakage using leak detecting fluid. Isolate the leaking area and do repair/change
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component or washer.
b) Lever L is not in correct position
Check if the lever L is in correct position.
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Check that the audible and visual alarms on the Gas Alarm have been cancelled.
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8.2.2.CHANGE OF OPERATING SIDE
The alarm starts in following situations:
a) The supplying side is empty
Replace the empty cylinders with full cylinders as described in chapter 7.
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Check that the audible and visual alarms on the alarm have been cancelled.
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8.2.3. HIGH OUTLET PRESSURE
The alarm starts in following situations:
a) The manifold outlet pressure is too high (version with safety valves without manual drain)
Contact authorised service to replace the regulator with a new or refurbished one.
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b) The manifold outlet pressure is too high (version with safety valves with manual drain)
Check that the manifold regulator R1 & R2 outlet pressure is as preferred. If not, isolate the
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regulator by closing valve V5 or V6 and check one regulator at a time. Start with the regulator
on reserve side, relief the pressure by the safety valve S1 & S2 and check if the pressure
increases again. Change operating side and make the same test with the other regulator.
If you shortly after resetting the regulator have the same alarm condition again, the regulator
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most likely has internal leakage. Contact authorised service for replace the regulator with a
new or refurbished unit.
Check that the audible and visual alarms on the Gas Alarm have been cancelled.
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