ALTANA LCM IV - Manual (Page 73)

74
Standard programs
Absorbance Formula
1. Press Absorbance Formula.
2. The formula selected in the top key determines the number
of wavelength and coefficient keys that will appear below.
3. Press the key to change the calculation formula.
4. Select a formula from the displayed list.
5. Press OK.
When a new formula is selected, the number of variables
below changes to match.
The following formulas are available:
K
1
A
1
+ K
2
A
2
K
1
A
1
+ K
2
A
2
+ K
3
A
3
K
1
A
1
+ K
2
A
2
+ K
3
A
3
+ K
4
A
4
K
1
A
1
/ K
2
A
2
(K
1
A
1
+ K
2
A
2
) / K
3
A
3
(K
1
A
1
+ K
2
A
2
) / (K
3
A
3
+ K
4
A
4
)
A
1
refers to the absorbance at wavelength 1
A
2
refers to the absorbance at wavelength 2, etc.
O Wavelength
To input the wavelength setting. Use the alphanumeric keypad to enter the reading wavelengths.
The entered wavelength must be in the range from 320–1100 nm.
Send Data icon To send data to a printer, computer or USB memory stick (Type A)
Concentration Factor Multiplication factor for converting absorbance values into concentration values.
Concentration
Resolution
To select the number of decimal places.
Absorbance Formula Calculation basis for evaluating samples
Recall measurement
data
Recall saved measurement data, wavelength scans or time courses, see section 5.3, page 38 .
Instrument Setup mode Basic data of the instrument, refer to section 5.2, page 23 .
Table 8 Multi wavelength setup options(Continued)
Options Description