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Troubleshooting
Detector-Related Problems
Thermo Scientific
This chapter provides you with helpful information for troubleshooting possible detector and
chromatographic system problems. The information is organized in a table of symptoms,
possible causes, and remedies. Because many of the problems attributed to the detector might
actually be due to other components in the chromatographic system, references and potential
solutions to these types of problems have also been included. Some common error messages
are included to aid in troubleshooting errors.
Contents
•
Detector-Related Problems
•
Error Messages
Table 7
lists detector-related problems along with suggestions for corrective action.
Table 7. Troubleshooting detector-related problems (Sheet 1 of 5)
Symptom
1. Spikes on baseline. a. Continuous gas bubbles in
Cause
the flowcell.
b. Immiscible solvent bubbles
following mobile phase
changeover.
c. Electrical interference.
Remedy
a. Degas the mobile phase.
Connect a backpressure
device to the flowcell
(check backpressure rating).
b. Flush the flowcell with
isopropanol, then with
mobile phase.
c. Check the electrical lines
for good connections
and/or interference from
broadcast radiation. Check
for ground loops.
Surveyor RI Plus Detector Hardware Manual
5
37
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