Metrohm 917 User Manual

28.5 Calculations
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917 Coulometer
Function Description
SQRT(X) square root of X
Example: √(EP1)
ABS(X) absolute value of X
Example: ABS(C00); in order, e.g. with reweighings, to
convert the negative sample size to a positive value for
later calculations
LN(X) natural logarithm of X
LOG(X) decimal logarithm of X
FRAC(X) Fraction of X
Example: FRAC(2.5971) = 0.5971
INT(X) integer part of X
Example: INT(2.5971) = 2
TST(X,Y) Test function
If invalid variables (e.g. missing endpoints) occur in a cal-
culation, then these can be replaced with a valid value
by using this function. In this way invalid results can be
avoided.
￭ Syntax:
– X = variable to be tested
– Y = substitute value
28.5.3.3 Variable list
The following table contains all of the variables which can be used for cal-
culations. For variables having an index (e.g. 'EP1'), the index must be
entered manually. In the following table, this index is characterized with
the character "#".
Variable Description
C00 Sample size
CI1, CI2 Sample identifications
The sample identifications can be used in calculations only if numerical values are entered.
DD Duration of the entire determination
Titrants
TITER Titer of the titrant selected in the titration command
CONC Concentration of the titrant selected in the titration command
Titrations, measurements, calibrations

Metrohm 917 Specifications

General

Brand	Metrohm
Model	917
Category	Laboratory Equipment
Language	English