Metrohm 900 Touch Control Manual - Manual (Page 475)

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29 Parameters
900 Touch Control
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continuous
A temperature sensor must be connected. The temperature is mea-
sured continuously.
automatic
If a temperature sensor is connected then the temperature will be
measured continuously. Otherwise, the temperature entered manually
will be used (see dialog of the titration and measuring parameters).
off
The temperature will not be measured. The temperature entered man-
ually is used (see dialog of the titration and measuring parameters).
29.15.5.6 Dosing device
The parameters for the dosing device are edited under [Dosing device].
Dosing device
Selection of the MSB connector the dosing device is connected to. Every
MSB connector will always be displayed.
Selection 1 | 2 | 3 | 4
Default value 1
Titrant
Selection of the titrant from the titrant list. We recommend always select-
ing the titrant. This ensures that the correct data (titer, concentration, etc.)
is always used for the calculation. Titrants are defined under Sys-
tem
▶ Titrants. You can also enter a name which is not contained in the
titrant list. When a determination is started there is a check whether the
solution is contained in the list.
For buret units with integrated data chip, a check is made in the method
run to verify whether the correct titrant has been attached and whether
the type of dosing drive matches. For buret units without integrated data
chip, the cylinder volume and the type of dosing drive are checked. For
the selected titrant, the validity of the titer, the working life of the titrant
and the time interval for the GLP test of the buret unit are checked at the
start of the determination.
Selection Selection of configured titrants | not defined
Default value not defined
not defined
No check takes place.
Tandem dosing
A second dosing device can be defined under [Tandem dosing] in order
to enable uninterrupted dosing. Dosing is carried out with a combination