Metrohm 726 Titroprocessor - Manual (Page 159)

8. Command reference 8. Command reference
726 Titroprocessor, Instructions for use 153 153
Stop crit
. Switch-off mode
Drift | time | none
The stop criterion defines the behavior of the titrator
when the endpoint is reached. The automatic termina-
tion of the titration can be carried out according to dif-
ferent criteria:
Drift The titration is stopped when (after the EP
has been reached) the volume drift falls
below the set value.
Time After the EP has been reached the set time
is allowed to elapse before the titration is
stopped.
none The titration will not be stopped automati-
cally. The sample solution will be kept at
the endpoint.
If a renewed addition is necessary before the stop crite-
rion is recognized then a further volume increment will
be added and the stop criterion again checked.
Stop drift
Volume drift for titration termination
1…20…999 µL/min
After the last addition (…and after the EP has been
reached) the stop drift must be undercut before the ti-
tration can be ended. This volume drift can be inter-
preted as being the dosing rate which is theoretically
required to keep the measured value of the sample so-
lution constant at the endpoint.
t(delay)
Delay before titration termination
0…9999 s
When the EP has been reached the set time is allowed
to elapse before the titration is ended. If the delay time
is set as '0 s' then the titration will be terminated imme-
diately the EP has been reached.
8.4.3 Curve display with SET
The settings for the curve display correspond to those for the KFT mode,
see page 166.