Agilent InfinityLab LC Series 1260 Infinity II FLD User Manual 157
Error Information
7
Detector Error Messages
ADC Not Calibrated
Error ID: 6621, 6732
The analog-to-digital converter located on the FLF board cannot calibrate.
A/D Overflow
Error ID: 6618, 6619
This message is not implemented in firmware revision A.03.66 and below.
It indicates an overload situation of the A/D converter (sample signal). The
user-interface will show a not-ready condition for the FLD and an info event is
written into the logbook. If the message comes up during a run, it includes the
time of occurrence and when it disappears.
1200 FLD 1 A/D overflow (RT is 0.32 min) 16:33:24 02/11/99
1200 FLD 1 A/D overflow finished (RT is 0.67 min)16:33:46 02/11/99
If this condition is present prior to a run, the not-ready will prevent the
system to start the run/sequence.
With firmware revision A.06.11 and above, the A/D overflow leads into a flat
peak in the chromatogram. For details see “Visualization of ADC Limits” on
page 128.
Probable cause Suggested actions
1
Defective ADC or other FLF electronics.
Please contact your Agilent service
representative.
Probable cause Suggested actions
1
PMT setting to high.
Reduce PMT gain.
2
Wavelength setting wrong.
Change wavelength setting.
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