ActionPossible causeDescriptionWarning code
•
Flush the UV flow cell and
mount securely.
•
Recalibrate.
In the Settings and service:UV
screen:
When trying to calibrate, if there
are repeated calibrations and
the signal strength is decreasing.
Flush UV flow
cell and
mount secure-
ly
115
•
Flush the UV flow cell and
mount it in a secure way.
•
Try to recalibrate. If the volt-
age is still less than
2700 mV, change UV mod-
ule.
In the Settings and service:UV
screen:
Calibration and run time: When
the UV signal is not in the range
2700 to 4000 mV, auto zero
cannot be performed.
UV baseline ig-
nored
116
Error messages
ActionPossible causeDescriptionError code
See
Troubleshooting Flow chart 1, on
page 102
During power up, too little light
is reaching the detector, i.e., too
high absorbance in the cell or to
weak light source.
UV module
failure
101
See
Troubleshooting Flow chart 2, on
page 103
During power up, stray light test
has failed, light is "leaking" in to
the detector.
UV module
failure
102
See
Troubleshooting Flow chart 3, on
page 104
UV module cable may be loose
or disconnected, no communica-
tion with UV module. Main PWA
(printed wiring assembly) failure.
UV module
failure
103
ÄKTA start Maintenance Manual 29060308 AD 95
4 Troubleshooting
4.1 UV
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