28.1 Coulometric Karl Fischer titrations (KFC)
ï¿ï¿ï¿ï¿ï¿ï¿ï¿ï¿ï¿ï¿ï¿ï¿ï¿ï¿ï¿ï¿ï¿ï¿ï¿ï¿ï¿ï¿
224
ï¿ï¿ï¿ï¿ï¿ï¿ï¿ï¿
917 Coulometer
Stop time
The titration is stopped when the specified time has elapsed since the start
of the titration.
Input range 1 - 999999 s
Selection off
Default value off
28.1.4 Conditioning
The conditions required for conditioning are defined under [Condition-
ing].
Conditioning
on | off (Default value: on)
If this parameter is activated, then the first time the titration is started the
working medium will be titrated to the endpoint with the specified control
parameters. The status is kept stable. The actual method run does not
begin until [ ] has been pressed once more.
Start drift
If the measured drift is smaller than this value for a certain time (so-called
stabilizing time), Conditioning OK is displayed and the titration can be
started. The stabilizing time is defined in the dialog Conditioning / Con-
ditioning options.
Input range 1 - 999 µg/min
Default value 20 µg/min
Drift correction
The endpoint amount can be corrected taking the drift value into account.
For this, the drift is multiplied with the drift correction time and this value
is then subtracted from the endpoint amount. The drift correction time is
the time interval between the end of conditioning and the end of the
determination.
Selection auto | manual | off
Default value auto
auto
The value of the current drift is automatically applied at the start of the
titration.
manual
If the drift is known throughout a longer period of time, this can be
entered manually.
off
No drift correction takes place.
To Next Page
Loading...
Need help?
General
