Agilent 1260 Infinity DAD and MWD User Manual 91
Using the Detector
4 
Special Settings of 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 99.
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.
Figure 31 Margin for Negative Absorbance
The higher the value the greater the baseline noise. Set this value only if you expect 
negative absorbance greater than -100 mAU.