User manual

5.3 Error messages
If the suggested actions do not correct the fault, call Amersham
Biosciences.
Message Action
1 Perform a new start-up. The preceding message may tell
more about the cause.
2 If not, call service.
1 Wrong value for averaging time set. See section 3.11 on
how to set the averaging time relative to peak width.
1 Call for Service.
1 Connect the lamp, or call for service.
1 Check connection between optical unit and monitor.
2 Check that lamp and filter position correspond.
3 Change lamp. If warning persists, call for service.
1 If used in cold room, additional warm up might be needed.
2 If problem remains, change the lamp.
3 If problem remains, call for service.
1 Check that filter wheel cover is closed.
2 Check that non-transparent tubings are used at UV flow cell
inlet and outlet.
3 Check that optical unit is not exposed to direct sunlight.
4 If problem remains, call service
1 Auto is not allowed from a level above 2 AU.
2 Check buffers.
3 Clean UV cell.
77 WARNING Autozero
Out of range
73 WARNING Too much
straylight leaks in
76 Change lamp or
call for service
72 Change lamp or
call for service
71 WARNING low light
intensity
70 Lamp disconnected
If not call service
75 Electrical error
Call for service
57 Electrical error
Call for service
50 Electrical error
Call for service
35 WARNING wrong
averaging time set
34 Start up failed
Retry/Call service
Monitor UPC-900
User Manual 18-1125-55 Edition AE
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Trouble-shooting 5