Metrohm 840 PC Control 5.0 / Touch Control - Manual (Page 223)

4 Parameters
PC Control / Touch Control
211
Titration sequence for SET
1st start of titration
command
Checks whether work is to be carried out with or
without conditioning.
(Switch on stirrer) The stirrer is switched on after the start.
Preconditioning
(if activated)
The titration cell solution is titrated to the end-
point and kept there continuously.
2nd start of titration
command
The method sequence itself starts.
Measure initial meas-
ured value
The initial measured value is measured.
(Start conditions:
Pause 1
Start volume
Pause 2)
Pause interval 1 is allowed to elapse. The start
volume is added. No measuring points are en-
tered in the list of measuring points. Pause inter-
val 2 is allowed to elapse.
(Extraction time)
Titration with test up
to stop when stop
criterion or the stop
condition is reached
Titration is carried out to the first and then to the
second endpoint.
If the extraction time has not elapsed when the
(first) endpoint has been reached then it will be
allowed to elapse and the titration (to the first
endpoint) will only be concluded when the ex-
traction time has elapsed.
(Switch off stirrer) The stirrer is switched off if there is no recondi-
tioning.
Fill dosing
cylinder
After the end of the titration the dosing cylinder is
refilled automatically.
Reconditioning The titration cell solution is kept continuously at
the endpoint.
Optional steps are shown in brackets.