9. TROUBLESHOOTING
The following section describes possible causes of malfunction and how to eliminate them. If malfunctions
occur with increasing regularity, shorten the maintenance intervals to refl ect the actual load. If malfunctions
occur that cannot be eliminated with the following help, please contact the manufacturer.
9.1. SAFETY NOTES FOR TROUBLESHOOTING
In any case of malfunction, the shut-off valves oft he connected gas cylinder, gas container or bundle must
be closed. Never operate devices with malfunctions under pressure.
WHAT TO DO IN CASE OF MALFUNCTION:
1. Interrupt and ensure gas supply.
2. Depressurize pressure regulators and close valves.
3. Only trained technical staff may eliminate malfunctions.
4. Restore component to its original state.
Description
Reason
No Flow
Pressure
(Inlet Gauge
Regulator is
shows pres-
closed
sure, outlet
gauge not)
No Flow (Inlet
Cylinder Valve
and Outlet
closed Pro-
Gauge show
cessgas Valve
„0")
closed Pres-
sure Regulator
closed Cylin-
der coil/ hose
not connected
No Flow
Handwheel
closed
Increase of
Leakage in
outlet pressure
pressure regu-
& relief valve
lator seat
opens
Slight increase
Inlet pressure
of outlet pres-
drop
sure & relief
valve does not
open
Slight increase
Diff erence
of outlet pres-
between fl ow
sure
pressure (with
gas fl ow) and
Zero Pressure
(without gas
fl ow)
Solution
Valve
Open pressure
regulator slowly
Close purge
valve
Initial Start- Up
see point 6
Installation and
initial start-up
Open hand-
wheel slowly
Repair by
manufacturer
No failure, nor-
mal operating
state
No failure, nor-
mal operating
state
17/294
Cylinder
Line
Gas
Regulator
Regulator
Supply Panel
EN