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Troubleshooting and Maintenance Guide
3
Chromatographic Symptoms
Analyzer Error Messages
Sometimes, a problem in your MSD will cause an error message
to appear in the MSD ChemStation software. Some error
messages appear only during tuning. Other messages may
appear during tuning or data acquisition.
Some error messages are “latched.” These messages remain
active in your data system even if the condition that caused the
message has corrected itself. If the cause is removed, these
messages can be removed by checking instrument status
through the data system.
Difficulty in mass filter electronics
•
Pressure in the analyzer chamber is too high
•
RFPA is not adjusted correctly
•
Mass filter (quad) contacts are shorted or otherwise not
working correctly
•
Mass filter is not working correctly
•
MSD electronics are not working correctly
Difficulty with the electron multiplier supply
•
Large peak, such as the solvent peak, eluted while the
analyzer was on
•
Pressure in the analyzer chamber is too high
•
MSD electronics are not working correctly
Difficulty with the fan
If a cooling fan fault occurs, the vacuum control electronics
automatically shut off the high vacuum pump and the ion
source and mass filter heaters. Therefore, the message:
The
system is in vent state
may also appear. It is important to note
that even though the high vacuum pump is off, the analyzer
chamber may not actually be vented. See
The system is in vent
state
in this section for precautions to take.
•
One of the fans is disconnected
•
One of the fans has failed
•
MSD electronics are not working correctly
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Страница 32: ...32 Troubleshooting and Maintenance Guide 2 Concepts and General Tasks...
Страница 72: ...72 Troubleshooting and Maintenance Guide 3 Chromatographic Symptoms...
Страница 86: ...86 Troubleshooting and Maintenance Guide 5 ALS Symptoms...
Страница 98: ...98 Troubleshooting and Maintenance Guide 7 Instrument Power On and Communication Symptoms...
Страница 108: ...108 Troubleshooting and Maintenance Guide 9 Troubleshooting Tasks...
Страница 150: ...150 Troubleshooting and Maintenance Guide 10 General Maintenance Figure 16 Replacing filaments Filament 1 Filament 2...
Страница 166: ...166 Troubleshooting and Maintenance Guide 10 General Maintenance...
Страница 214: ...214 Troubleshooting and Maintenance Guide 13 Analyzer...
Страница 239: ...Parts 15 Troubleshooting and Maintenance Guide 239 Figure 39 LCP replacement parts LCP assembly and fascia...