Hach-Lange DR 2800 eco - Manual (Page 83)

81
Advanced Operations
Entering the next calibration formula C2 or Cn
1. Activate C2: Off and press Edit.
2. Select C2: Off again and press Edit. The display switches to
C2: On.
3. Activate the next line C2 = to define the formula, and press
Edit.
Besides the already described keys, only one other function is
available:
Select Conc. key
If an already defined formula, in this case C1, is to be taken into
account in the formula for C2, press Select conc.
Enter the number of the formula (e.g. 1 for C1) and confirm by
pressing OK.
Cn can now be linked with a mathematical operation.
Note: The Cn concentrations that are to be calculated are numbered in
sequence: C1, C2, C3, etc.
Note: When the first Cn formula has been defined, the Formula list is
automatically extended by Cn+1.
6.1.3.4 Variables
1. Activate the Variables line in the data overview and press Edit.
2. Select the variable to be edited, press Edit and use the
alphanumeric keypad to enter the data specified in the working
procedure (for F1, F2,
λ1, U1 etc.). Confirm each entry with
OK.
Abbreviation of Variables:
F1: Factor 1
F2: Factor 2
λ1: Wavelength 1
U1: Conversion Factor 1 for the first chemical form
U2: Conversion Factor 2 for the further chemical form a.s.o.