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3000 Micro GC Operating Manual
Chapter 9
Troubleshooting
9.1 Symptom, Cause, and Remedy Tables
The following tables identify common symptoms, causes and remedies. For
additional information, or if the symptom does not appear in the tables, see
9.1.1 Common Chromatographic Problems
Table 9-1 Common chromatographic problems
Symptom
Possible Cause
Remedy
Poor sensitivity
Insufficient
Sample Pump
time
In EZ IQ, increase the
Sample Pump
time to
at least 15 seconds. If sufficient sample is
available, increase to between 30 to 60
seconds.
Insufficient
Inject Time
In EZ IQ, increase the
Inject Time
.
Backflush Time
set too
early (if applicable)
Increase the
Backflush Time
until all peaks of
interest appear on the chromatogram.
Contamination
Run a bakeout to clean the columns. Refer to
.
Instrument not sufficiently
warmed up
Allow at least 3 minutes for 3000 Micro GC to
warm up. Conduct 10 runs and calibrate on
the last run.
External leak
Check carrier gas lines using a leak detector.
Tighten all fittings.
Broken or damaged O-ring
Contact
Loose fitting
Tighten all fittings and connections.
Low carrier gas pressure
Ensure the carrier gas is supplying at least
78 PSI, and no more that 82 PSI.
CAUTION
Exceeding 82 PSI for the
carrier gas pressure may
damage 3000 Micro GC.
Содержание 3000 Micro GC
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