PerkinElmer 200 UV/VIS Series User Manual page 79

Scanning the Chromatogram
Parameter
λ
BEG
Enter the wavelength where the
scan should begin.
λ
END
Enter the wavelength where the
scan should end.
Rate
Select a value for the scan speed.
The rate indicates the nm/second
that the wavelength changes.
Range
For the recorder output, enter the
desired range of the scan.
RSP or PW (depending on the
configuration)
Select a value for the response time
of the chromatogram.
Mark
Enter the mark interval. This is the
number of nanometers at which the
recorder leaves marks so that the
wavelength values can be matched
with output signals.
(continued on the next page)
Possible Values
Depends on the Configuration
options that have been set. For
example:
Deuterium Lamp: 190 to 360 nm
Tungsten Lamp: 360 to 700 nm
Depends on the Configuration
options that have been set. For
example:
Deuterium Lamp: 190 to 360 nm
Tungsten Lamp: 360 to 700 nm
Range: 0.2 to 1.0 in 0.1 increments.
For high resolution, use a slow
speed.
Value range: 0.0005 to 3.00
Absorbance Units Full Scale (AUFS)
For increased sensitivity, use a low
range value. To keep a large peak on
the chart recorder, increase the
range value.
Value range: .02 to 1.0. Set this
value depending on how fast you are
scanning.
Tip: Start at fastest (or smallest)
value and increase if the detector is
too noisy.
If you type 0, the recorder leaves a
mark only at the beginning and end
of the scan.
Using Manual Mode
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