Metrohm 756 KF Coulometer - Manual (Page 42)

3.7 Result calculations
756/831 KF Coulometer, Instructions for Use 34
3.7 Result calculations
Formula entry, key <DEF>
Key <DEF> contains various inquiries for result
calculations and data output. The data of this key are
method-specific and they are stored in the method
memory together with the method.
Formula (in expert mode only):
Formulas for result calculations.
The display texts of the Coulometer are shown to the
left. The values are the default values.
>formula
RS?
RS1=
RS1=H2O*C01/C00/C02
Input of formulas
Enter formula number (1...9)
You can calculate up to 9 results per method.
Enter a number 1...9.
Input of formula
Example:
RS1=H2O*C01/C00
Enter formula by means of 3rd functions of keyboard.
Here you will find operands, mathematical operations
and parentheses. Operands require a number as an
identification. You can use the following operands:
H2O
: Amount of water at the EP in ug.
RSX
: Results which have already been calculated with
previous formulas. X = 1...9.
CXX
: Calculation constants. XX = 00...45.
Rules:
• Calculation operations are performed in the
algebraic hierarchy: * and / before + and -.
• Store formula with <ENTER>.
• Calculation quantities and operands can be deleted
with <CLEAR> one by one.
• To delete a complete formula press <CLEAR>
repeatedly until only RSX remains in the display.
Confirm with <ENTER>.
If a formula is stored with <ENTER>, result text,
number of decimals, result unit and limit control for the
result will be requested:
DEF
(
2
def
>formula
>silo calculations
>common variables
>report
>mean