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Troubleshooting
AZURA® Detector UVD 2.1L Instructions, V6831
7.2 Possible problems and solutions
Problem
Solution
Baseline drift
Maintain constant temperature conditions
during the measurement.
Device will not turn on
Inspect the power cable to ensure that it is
plugged into the power supply.
Device cannot be
calibrated
1.
Fasten the knurled-head screws on the
slide to prevent incursion from interfe-
ring light or an electronics error.
2.
Insert the test cell.
3.
Inspect the calibration with a weak ab-
sorbing eluent.
Baseline noise
1.
Inspect the flow cell assembly.
2.
Fasten the knurled-head screws on the
slide to prevent incursion from interfe-
ring light or an electronics error.
3.
Exchange the defective flow cell.
4.
Inspect the service life of the lamp on
the display.
5.
Reduce the air in the flow cell with a
degasser.
The relationship of the
signal to the light path
reference is very low
1.
Flush the flow cell.
2.
Clean the flow cell window.
3.
Replace the lamps.
