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TitraLab
®
Blank required
Blank volume
Burette
functions menu
Page 68
This message appears at the start of a titration when a blank has
been programmed in the method, but a blank value is not available.
Press ✓ and run blank.
Volume of titrant consumed by the titration on a blank sample.
If you run an End point titration with several E.P., a blank volume is
found for each E.P. If you run an Inflection point titration, one blank
volume is found irrespective of the number of Inflection points found
for the method. This blank volume is determined on a particular inflec
tion point of the titration curve,
Blank", page
156.
When you run a method with a blank for the first time, the blank is
determined and stored along with the method. If the method is
restarted, you will be given the choice to run a sample analysis or a
blank analysis.
For a sample analysis using an End point method, a blank volume will
be automatically subtracted from each end point found.
For a sample analysis using an Inflection point method, a blank
volume will be automatically subtracted from the Inflection point
selected by the user,
These functions can be activated during the preparation of the
burette, before installing the reagent.
To access, press 7 in the Reagents window. To run a burette function,
select the burette in the Address field, then press 1 to 6 corre-
sponding to the required procedure. The title bar shows the volume of
the burette in use. You can replace (key 5) or remove this burette (key
6).
Figure 12: Burette functions menu (burette installed/not installed).
TitraLab 870 Reference Manual
see "Min. ordinate Max. ordinate -
see "Blank on inflection no.", page
67.
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