Corrective actionProblemComponent
Excessive pressure may damage the flow kit. If exces-
sive pressure is detected and the air trap is in line, press
the AIR VENT button on the system cabinet to reduce
the pressure.
Excessive pressureFlow kit
If excessive pressure is detected when the air trap is
bypassed, perform the following steps:
1
In UNICORN, set Manual Flow to 0, and set the air-
trap in line.
2
Press CONTINUE (in UNICORN, or on the system
cabinet).
3
Press the AIR VENT button on the system cabinet.
Condensation of moisture on the flow cell window. The
process liquid is too cold, must not be lower than 10ºC
from ambient temperature.
Drifting UV signalUV
UV signal does not return
to zero
Stray light calibration performed without cell.UV absorption values
> 5 AU, even without flow
kit installed
Install a flow kit and do a stray light calibration accord-
ing to the instruction Manual calibration of
UV stray light, on page 148.
200 ÄKTA ready Operating Instructions 28960345 AD
13 Troubleshooting
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