PerkinElmer 200 UV/VIS Series, User Manual

Page: 87 / 177

Editing the Current Method Using Method Mode
4 - 7
The following table describes the Control Parameter values:
Value Description
STEP Displays the step number. A method may have up to 20 steps.
TIME Indicates the length of time in which the selected control parame-
ters will be in control of the detector.
λ
(
Wavelength)
A wavelength value.
PW or RSP This parameter allows you to choose the amount of smoothing to
apply to the chromatogram. For guidelines on choosing an appropri-
ate response time, see the “Detector Response Time” topic in Chap-
ter 8, Principles. The parameter can be entered in either Peak
Width (PW) or Response Time (RSP). You select either PW or RSP
when you configure the detector. For more information, see Chapter
6, Configuring the Detector. Once you select PW or RSP, the detec-
tor displays the available values on the softkeys. For response time,
select a value that is approximately 20% of the peak width at half
height of the narrowest peak of interest. For peak width, select a
value that is approximately equal to the peak width at half height
of the narrowest peak of interest.
AZ Indicates Autozero. The Detector displays Yes and No on the soft-
keys. Yes causes the Detector to Autozero at the beginning of the
step.