Thermo Scientific SOLA II, User Manual

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Maintenance & Troubleshooting
General Troubleshooting
10-18 SOLA II User Guide Thermo Fisher Scientific
Malfunction Possible Cause Action
ALARM displayed: Cal Fail
(determine alarm type by
accessing the View/Ack Alarm
menu)
- Analyzer problems
- Recal deviation too low
- Calibration standard does not
match entered value
- Faulty previous calibration or
recently replaced calibration
- Check for other alarms and correct as necessary.
- Adjust recal deviation.
- Correct calibration value entry.
- Manually start a calibration to force a new calibration
factor standard update.
ALARM displayed: Inject
Temperature (determine alarm
type by accessing the
View/Ack Alarm menu)
- Instrument is starting up and not
reaching control temperature for the
pyrolyzer and oven
- Pyrolyzer heater failure
- Pyrolyzer or oven temperature
failure
- Normal alarm during startup until pyrolyzer and oven
temperatures stabilize.
- Check pyrolyzer temperature. If much lower than
normal and not increasing, check for voltage across the
heater terminals. If voltage is present, shut down the
instrument, disconnect the pyrolyzer heater contacts
and measure heater continuity. Replace heater if it
shows open.
- Check electronics and replace if necessary.
ALARM displayed: Valve Fault
(determine alarm type by
accessing the View/Ack Alarm
menu)
- Injection valve worn or scratched,
causing port-to-port leakage
-Defective flasher lamp, trigger pak,
or lamp intensity control electronics
- Replace valve rotor. In extreme cases, replace entire
valve head. Check filtration system to ensure particulate
is not getting to the injection valve.
-Check lamp, trigger pak, and electronics. Replace if
necessary.
ALARM displayed: Purge Fail
(determine alarm type by
accessing the View/Ack Alarm
menu)
- Loss of instrument air pressure
- Improper settings
- Leakage at oven or electronic
enclosure doors
- Leakage throughout electrical
conduit
- Check instrument air source pressure.
- Ensure oven air and purge pressures are set properly.
- Ensure oven and electronics enclosure doors are
closed tightly and that door seals are in good condition.
- Ensure electrical conduit seals are poured.
Excessive signal noise Internal sample or carrier leakage Check instrument for leaks.
Defective or low sensitivity PMT Check electronics and replace if necessary.
No 4-20 mA DC output current Incorrect or damaged wiring
1
Check wiring diagrams to ensure 4-20 mA DC signal
connected to proper terminals with correct polarity.
Check for short or open in wiring.
Inaccurate 4-20 mA DC output
current
Incorrect or damaged wiring
1
Check wiring diagrams to ensure 4-20 mA DC signal
connected to proper terminals with correct polarity.
Check for short or open in wiring.
Unstable reading Internal instrument leak Check for leaks.
Flasher lamp Replace with known good lamp to see if problem is
resolved.
Lamp trigger pak Replace.
Low lamp intensity Flasher lamp Ensure lamp and trigger pak are securely fastened.
1
Fault on the I/O PCB.