Metrohm tiamo 2.3 (process analysis) - Manual (Page 865)

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tiamo 2.3 (for Process Analysis) ￭￭￭￭￭￭￭￭ 849
optimal
Parameter set for all standard titrations; optimized for the most fre-
quent applications.
fast
For less critical, fast titrations.
User
User-defined settings of the individual titration parameters which affect
the titration rate.
Control
Note
Will be displayed only if the option User is selected in the selection list
Titration rate.
Control range
The control range is entered as distance to the endpoint. Within the con-
trol range, bromine will be generated in steps which are controlled by the
Minimum rate. The larger the control range, the slower the titration.
Outside the control range, bromine will be generated continuously with
Maximum rate.
The standard control parameters are optimal for most applications and
should not be modified. If you nevertheless need to modify the control
parameters for special reagents and/or samples take care that the polari-
zation current of the indicator electrode (I(pol)), the endpoint and the
control range are linked to each other.
Range 0.1 ... 1250.0 mV
Default value 400.0 mV
Max. rate
Maximum rate with which bromine is generated outside the Control
range.
Range 10.0 ... 19876.0 µg/min
Default value 500.0 (slow), 1000.0 (optimal), 2000.0
(fast) µg/min
Selection maximum
Min. rate
This parameter defines the minimum rate with which bromine is gener-
ated inside the Control range. The smaller the rate the slower the titra-
tion and the higher the accuracy.