Metrohm 840 PC Control 6.0 / Touch Control - Manual (Page 25)

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Max. rate
Rate at which bromine is generated outside the control range.
Range 10.0 ... 19876.0 µg/min
Default value 1000.0 µg/min
Selection maximum
Min. rate
Rate at which bromine is generated at the very beginning of the titration
and in the control range at the end of the titration. This parameter has a
decisive influence on the titration rate and thus also on the accuracy. The
smaller the selected minimum rate, the slower the titration.
Range 1.0 ... 999.9 µg/min
Default value 25.0 µg/min
Table 2 Default values for the predefined titration rates for BRC
Titration rate
slow optimal fast
Dynamics 400.0 mV 400.0 mV 400.0 mV
Max. rate 500.0 µg/min 1000.0 µg/min 2000.0 µg/min
Min. rate 15.0 µg/min 25.0 µg/min 50.0 µg/min
Stop criterion
Stop criterion
The titration is stopped when the endpoint has been reached and this
stop criterion has been fulfilled. If no stop criterion has been selected then
the titration will not be stopped. The stop conditions (see Chapter 2.2.3,
page 21) always lead to a stop, even if the stop criterion has not been
reached.
Selection drift | time | rel. drift | off | drift & time
Default value drift & time
drift
The titration is stopped when the stop drift has been reached.
time
The titration is stopped when the endpoint has been exceeded during
a certain period of time (Delay time).
rel. drift
The titration is stopped when the sum of the drift at the start of the
titration and the relative stop drift has been reached.