66 1200 Series DAD and MWD User Manual
4Using the Detector
Margin for Negative Absorbance Settings
1 To change the settings select Setup Detector Signals.
2 In the section Margin for Negative Absorbance change the value according
to your needs.
Optimizing the Detector
Additional theoretical information can be found in chapter “How to optimize
the Detector” on page 67:
Figure 24 Margin for Negative Absorbance
Use this field to modify the detector’s signal handling to increase
the margin for negative absorbance. Use this option if, for
example, your solvent gradient produces a decreasing baseline
absorbance, and for GPC analyses.
Limits: 100 to 4000 mAU.
NOTE
The higher the value the greater the baseline noise. Set this value only if you expect
negative absorbance greater than -100 mAU.
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