Hach DR 6000, User Manual

Page: 104 / 156

104
Expanded programs
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.
K
1
refers to the coefficient at wavelength 1
K
2
refers to the coefficient at wavelength 2, etc.
If a subtraction has to be completed, the factors can be entered
with a minus sign.
6. To change the wavelength, press the

x key.
7. Enter the required wavelength factor using the alphanumeric
keypad.
8. Press OK to confirm the selection.
9. To change a coefficient, press one of the " K
X
" keys.
10. Enter the required coefficient using the alphanumeric
keypad.
11. Press OK to confirm the selection.
Note: Up to 5-digit numeric values can be entered. A maximum of
four decimals places are possible.
Concentration Factor:
1. Press Concentration Factor: Off in the "Options" menu.
2. Press On to highlight this feature.
3. Press Factor .
4. Enter the factor by which the absorbance values are to be
multiplied.
5. Press Unit .
6. Select the respective concentration unit from the displayed
list.