WATERS CORPORATION 2424, Operator'S Manual, Page: 156 / 196

5-30 Diagnostic Functions and Troubleshooting
Use the following table to troubleshoot peak resolution problems that may be
affecting your results.
Peak resolution troubleshooting
Symptom Possible cause Corrective action
Straight baseline, no
peaks
No pump flow Set pump flow rate.
Lamp not operating Check method. Lamp might be
turned off.
Call Waters Technical Service.
Detector not zeroed Auto zero detector baseline.
Check cables between unit and
recorder.
Improper connection
between the detector
and the recorder
Auto zero detector baseline.
Check cables between unit and
recorder.
No sample injected Check injector.
Leak in solvent path Check fittings and drip tray.
Bad column
Clean or flush or replace
column.
Call Waters Technical Service.
Detector gas flow set
to off
Turn gas flow back on.
No gain set Set gain (see page 3-19 ).
Flat-topped peaks Detector not zeroed Auto zero detector baseline.
Incorrect recorder
input voltage
Adjust recorder input voltage,
or connect cable to correct port
on recorder.
Sample
concentration or
injection volume
exceeds voltage
output of detector
Decrease sample concentration
or injection volume.