Metrohm 840 PC Control 5.0 / Touch Control - Manual (Page 122)

3.15 Loading methods
110
PC Control / Touch Control
The following method templates can be selected:
Method template Command sequence Application
Dynamic
Titration pH
DET pH (dynamic titration)
CALC
REPORT (result report and
titration curve)
Dynamic
Titration U
DET U (dynamic titration)
CALC
REPORT (result report and
titration curve)
Dynamic reagent addition, for
rapid equivalence point titrations,
large volume increments in the flat
part of the curve; small increments
near the EP, many measuring points
near the EP.
For all standard titrations
(acid/base titrations, precipitation
titrations, redox titrations).
Monotonic
Titration pH
MET pH (monotonic titration)
CALC
REPORT (result report and
titration curve)
Monotonic
Titration U
MET U (monotonic titration)
CALC
REPORT (result report and
titration curve)
Reagent addition with constant
volume increments, relatively few
measuring points near the EP.
For titrations with relatively high
signal variations or a suddenly
occurring potential jump, very flat
potential jumps, slow titrations
(non-aqueous titrations, certain
redox titrations, surfactant
determinations).
Endpoint
Titration pH
SET pH (endpoint titration)
CALC
REPORT (result report and
titration curve)
Endpoint
Titration U
SET U (endpoint titration)
CALC
REPORT (result report and
titration curve)
Titration to a predefined endpoint.
For rapid routine determinations,
titration to particular standards and
titrations in which an excess of titrant
must be avoided (p+m values, pH
adjustment).
Karl Fischer
Titration
WAIT
REQUEST (data scanning)
KFT Ipol (Karl Fischer
titration)
CALC
REPORT (result report and
titration curve)
Titration for water determination by
Karl Fischer with pre-and post-
conditioning.
STAT pH
without pre-
titration
STAT pH (Titration with
holding the measured value
constant)
EVAL RATE (Rate evaluation)
CALC
REPORT (result report and
titration curve)
Titration to a predefined control
point. The control point is kept
constant by continuous reagent
addition, e. g. for determination of
enzyme activity.