Metrohm 726 Titroprocessor - Manual (Page 147)

88. . Command Reference Command Reference
726 Titroprocessor, Instructions for use 141 141
Fix end points
End points with pre-set measured values
It may be desirable to calculate with a volume value at a
fixed measured value on the titration curve. This is
where fix end points can be useful.
F# M.value
Measured value of the fixed end point
with DET_PH* pH -20…20 | off
with DET_U*, DET_IPOL* -2000…2000 mV | off
with DET_UPOL* -200 …200 µA | off
Up to nine fix end points can be defined. Upon titration,
their associated volume values are filed in the F1…9 va-
riables (measured values of the fix end points =>
FM1…9) and can be used for calculations like normal
EPs.
8.2.4 Curve display
The settings for the curve display are valid for both the live curve display
and the curve printout. The measurable variable display for the two axes and
their scales can be set individually. Combined curves can also be displayed
(not live).
Quantity Y_Axis
Measurable variables on the Y-axis
M.value | Volume | Temp. | dMW/dV
MW,Temp. | MW,dMW/dV | all
Other display options are possible in addition to the
standard Measured Value/Volume display. The choice
of measurable variables on the Y-axis is as follows:
M.value pH, mV or µA (in line with mode)
Volume i.e. volume against time
Temp. with automatic measurement only
dMW/dV 1st derivative of the measured
value curve against volume
MW, Temp. Meas. value and temp. combined
MW,dMW/dV Meas. value and 1st derivative
against volume, combined
all all displayable curves combined