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5 stirrer, Stirrer – Metrohm 900 Touch Control Manual User Manual

Page 403

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29 Parameters

900 Touch Control

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387

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).

29.9.5

Stirrer

The parameters for the stirrer are edited under [Stirrer].

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 32.3, page 489. 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

Input 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.