Spectron Spectrotec LT2000, User Manual

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9 | Repair Spectron Gas Control Systems GmbH
22 GES_LT2000_0122
Detect and assess causes of malfunction
Rectify faults and restore operational readiness
Repairs to the product may only be performed by the manufacturer or specialist personnel in-
structed on the system.
Work on electrical system parts may only be performed by a qualified electrician.
Before beginning work, the pressure control panel must be purged (see "Flushing through to the
process"). After completing the works, a re-commissioning process must be carried out (see
"
Commissioning [ } 16] ").
9.2 Troubleshooting and fault rectification
Fault Possible cause Remedy
Outlet pressure too low Process gas source empty Check inlet pressure on the
pressure regulator and change
the process gas source if ne-
cessary
Vibration noises in the pres-
sure regulator Pressure regulator faulty Replace pressure regulator
Pressure regulator frozen Flow rate too high Reduce flow rate or use gas
preheater if possible
System pressure cannot be set
to the desired value Pressure regulator faulty Replace pressure regulator
System pressure outside the
intended system pressure Only operate the system at the
intended range
Flow insufficient or fluctuating Inlet pressure of the process
gas too low Increase inlet pressure
Valve faulty Replace faulty valve
Filter loaded Change filter
Relief valve, over-pressure
valve, safety valve or burst
disc are discharging gas Impermissible pressure rise in
the outlet pressure range Close all valves and check
pressure control panel
HPI valve cannot be opened or
closed Pneumatic pressure too low Check pneumatic pressure
Compressed air hose ripped Replace compressed air hose
out
Leak Connection leaking Flush pressure control panel
clear and perform pressure
test and leak test