11/12/02 15:38 600.0 nm 0.854 ABS
Multipl WL
1 Parameter Setup 1 Data Mode ABS
2 Sample Setup 2 NUM WL 2
3 Curve Setup 3 WL Setup 500.0
4 Print Setup 4 Baseline System
5 System Setup
6 Save Parameter
7 User Baseline
0 Forward
Input Value:_
(2 to 6)
Specifies the number of wavelengths.
The following shows the relation between the number
of wavelengths and each data mode.
Data
Mode
Settable
Wavelengt
h
Description
T% 2 to 6 Transmittance at each
wavelength is measured
and displayed.
ABS 2 to 6 Absorbance at each
wavelength is measured
and displayed.
2 2–wavelength calculation
is made and concentration
is obtained.
WL
Conc
3 3–wavelength calculation
is made and concentration
is obtained.
(a) WL NUM (Data Mode: Conc)
The photometric values A (WL1) and A (WL2) at two specified wavelength
is calculated based for the following formula.
D = WL2 – WL1
3-48
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