Metrohm 840 PC Control 6.0 / Touch Control - Manual (Page 23)

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Selection continuous | automatic | off
Default value automatic
continuous
A temperature sensor must be connected. The temperature is meas-
ured 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).
2.1.8 Stirrer
Under [Stirrer], the parameters for the stirrer are edited.
Stirrer
Selection of the MSB connector the stirrer is connected to. Every MSB
connector will always be displayed.
Selection 1 | 2 | 3 | 4 | off
Default value 1
off
No stirrer will be used.
Stirring rate
Setting the stirring rate. It can be set in steps of –15 to +15. The default
setting 8 corresponds to 1000 rpm. The formula for calculating the rota-
tional speed is specified in chapter 3.1, page 27. The optimum stirring
rate can be tested in the manual control.
The algebraic sign of the stirring rate changes the direction in which the
stirring is done. When the stirrer is viewed from above, this means:
￭ "+": counterclockwise rotation
￭ "–": clockwise rotation
Range –15 ... 15
Default value 8
Switch off automatically
on | off (Default value: on)
If this parameter is activated, the stirrer will be switched off automatically
at the end of the titration, measurement, etc.