Metrohm 899 Coulometer - Manual (Page 84)

7.1 Coulometric Karl Fischer titrations (KFC)
￭￭￭￭￭￭￭￭￭￭￭￭￭￭￭￭￭￭￭￭￭￭
74 ￭￭￭￭￭￭￭￭
899 Coulometer
off
No drift correction takes place.
Drift value
This parameter can only be edited with Drift correction = manual.
Drift for manual drift correction.
Input range 0.0 ... 99.9 µg/min
Default value 0.0 µg/min
Automatic start
If this parameter is activated, then the determination is automatically star-
ted when the measured voltage suddenly changes. This setting will be
ignored as long as the working medium has not been conditioned.
Selection on | off
Default value off
Note
If you use the automatic start function, then we recommend that the
start drift be reduced and that a stabilizing time be defined.
Recommendation: Start drift ≤ 10 µg/min / Stabilizing time ≥ 30 s
Threshold value
This parameter can only be edited with Automatic start = on.
If the change in voltage is higher than this value, then the determination
will automatically be started.
Input range 0 ... 999 mV
Default value 50 mV
Stabilizing time
Waiting time, during which the measured drift has to be smaller than the
start drift defined until Conditioning OK is displayed. The start drift is
defined under Conditioning
▶ Start drift.
Input range 0 ... 999999 s
Default value 0 s
Cond. stop time
Maximum permissible time over which conditioning may take place. Con-
ditioning is stopped as soon as the specified time has elapsed.
Input range 1 ... 999999 s