Hach-Lange DR 3900 User Manual - Manual (Page 77)

77
Expanded programs
Wavelength λ
x
:
1. Press the λ
x
buttons.
The number of wavelengths results from the calculation
formula.
2. Enter the required wavelengths.
3. If necessary, repeat until all values for the formula have been
entered.
The entered wavelengths must be in the range from
320-1100 mm.
4. Press OK to confirm.
Concentration factor K
x
The concentration factor K
x
is a multiplication factor to convert
absorbance values into concentration values.
1. Press the K
x
buttons.
The number of the concentration factors results from the
calculation formula.
2. Enter the required factor.
3. If necessary, repeat until all the values for the formula have
been entered.
4. Press OK to confirm.
5. Press Continue.
Note: Up to 5 digit place values can be entered. A maximum of 4
decimal places are possible.
Concentration resolution (number of decimal places)
1. Select the required number of decimal places to be
displayed after the decimal point from the list.
2. Press Continue.
Chemical form:
1. Enter the chemical formula used in the display to represent
the analysis parameter.
2. Press Continue.