Metrohm 840 PC Control 6.0 / Touch Control - Manual (Page 28)

2.2 Bromine index determination (BRC) ￭￭￭￭￭￭￭￭￭￭￭￭￭￭￭￭￭￭￭￭￭￭
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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 [START] 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.
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 off
auto
The value of the current drift is applied automatically 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.
Drift value
This parameter can only be edited when Drift correction = manual.
Drift for manual drift correction.
Range 0.0 ... 999.9 µg/min
Default value 0.0 µg/min
Measured value display
on | off (Default value: off)
If this parameter is activated, the currently measured value is displayed
during the conditioning.