GE AKTA start Maintenance Manual page 95

Warning code Description
115 Flush UV flow
cell and
mount secure-
ly
116 UV baseline ig-
nored
Error messages
Error code Description
101 UV module
failure
102 UV module
failure
103 UV module
failure
ÄKTA start Maintenance Manual 29060308 AD
Possible cause
In the Settings and service:UV
screen:
When trying to calibrate, if there
are repeated calibrations and
the signal strength is decreasing.
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.
Possible cause
During power up, too little light
is reaching the detector, i.e., too
high absorbance in the cell or to
weak light source.
During power up, stray light test
has failed, light is "leaking" in to
the detector.
UV module cable may be loose
or disconnected, no communica-
tion with UV module. Main PWA
(printed wiring assembly) failure.
4 Troubleshooting
Action
Flush the UV flow cell and
•
mount securely.
Recalibrate.
•
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.
Action
See
Troubleshooting Flow chart 1, on
page 102
See
Troubleshooting Flow chart 2, on
page 103
See
Troubleshooting Flow chart 3, on
page 104
4.1 UV
95