Second Display For Dual Wavelength Mode; Peak Width - Gilson 155 User Manual

Operation
Second Display for Dual Wavelength
Mode
Following is a description of the parameters on the

second display for dual wavelength mode.

To return to the first display for dual wavelength
mode, press the Previous soft key.
Parameter

Peak width

Ratio multiplier
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Description
The detector must know the width of the
narrowest peak in your run. The detector uses this
information to optimize the presentation of peaks
and to minimize baseline noise.
To set the peak width accurately, run a
chromatogram using the minimum peak width
setting. Measure the width at half height of the
narrowest peak.
For most applications, the default setting of 10
seconds is adequate. Valid range is 4 to 99.0
seconds.
Note: If the peak widths on your trace vary by
more than a factor of 3 and if your work is noise-
sensitive, you may want to define a program file to
modify the peak width value at specified times
during the run. See Programming the Detector
page 3-42.
Use this parameter to enhance the ratio output
display on channel 3. (The ratio output is
automatically displayed at 50% full scale. This
allows both positive and negative ratios within a
trace to be presented.)
3
on
3-27