Equation formula, Titra lab – Hach-Lange TITRALAB 860_865 Reference Manual User Manual
Page 110
Titra
Lab
®
TitraLab 860 and 865 Reference Manual
Page 110
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 8
Result no. i calculated for the method
Ei where i = 1 to 4
(for EP) and 1 to 8
(for IP)
Potential difference or pH measured at
EP/IP no. i
Vi where i = 1 to 4
(for EP) and 1 to 8
(for IP)
Cumulate volume delivered at EP/IP no. i
V
Total volume delivered
SA
Sample amount
DA
Final dilution amount
AL
Aliquot
T
Last temperature measured (in °C)
CT
Titrant concentration
CE
Excess reagent concentration
VE
Excess reagent volume
Bi with i = 1 to 4 (for
E.P) i = 1 (for I.P)
Blank volume for EP/IP no. i
Gi with i = 1 to 10
Global variables
F
Results factor