Equation formula, Titra lab – Hach-Lange TITRALAB 860_865 Reference Manual User Manual

Page 110

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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

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