Hach-Lange TITRALAB 840_845 Reference Manual - Manual (Page 93)

Titra Lab ® TitraLab 840 and 845 Reference Manual
Page 93
Equation
formula One or two user defined equations can be entered to calculate results
using user required units.
The formula specifies how the calculations should be performed. A
formula can use up to 64 characters and can consist of operators and
operands, that are derived from the completed titration data.
Enter in:
Edit method > Result
Table 5: Equation formula: operands
Operands
1.23, -24, -2.34E-5 Constants
pi 3,141592654
e 2,718281828 (base of the Natural loga-
rithm)
Ri where i = 1 to 4 Result no. i calculated for the method
Ei where i = 1 or 2
(for EP) and 1 to 4
(for IP) Potential difference or pH measured at
EP/IP no. i
Vi where i = 1 or 2
(for EP) and 1 to 4
(for IP) Cumulate volume delivered at EP/IP no. i
V Total volume delivered
SA Sample amount
T Last temperature measured (in °C)
CT Titrant concentration
CE Excess reagent concentration
VE Excess reagent volume
Bi with i = 1 or 2 (for
EP) i = 1 (for IP) Blank volume for EP/IP no. i
F Results factor