GE AKTA avant User Manual page 369

Problem
The internal tempera-
ture of the UV monitor
is too high
Maximum absorbance
that can be measured
by the detector is
reached
The UV cell is not cor-
rectly installed
ÄKTA avant User Manual 29035184 AE
Possible cause and action
The air intake on the rear or on the right side of the
•
instrument is covered
Make sure that none of the air intakes on the instru-
ment are covered.
Hot surroundings
•
Decrease the room temperature. Maximum operating
temperature is 35°C.
Hardware error
•
Switch off the instrument and wait until the tempera-
ture has decreased. Restart the instrument. If this error
is recurrent, generate a System error report and con-
tact Service.
Wrong UV flow cell for current buffer
•
Change to a shorter UV flow cell or change buffer.
The UV flow cell is not correctly installed
•
Check that the UV flow cell is fitted correctly, see Sec-
tion 7.8.5 Replace UV monitor U9-L flow cell, on
page 345.
Dirt in the UV flow cell
•
Clean the UV flow cell, see Section 7.5.1 Clean the UV
flow cell, on page 283.
Broken UV flow cell
•
Replace the cell, see Section 7.8.5 Replace UV monitor
U9-L flow cell, on page 345.
Check that the UV flow cell is fitted correctly, see Sec-
•
tion 7.8.5 Replace UV monitor U9-L flow cell, on
page 345.
8 Troubleshooting
8.3 Troubleshooting: Monitors
369