Metrohm 840 PC Control 5.0 / Touch Control - Manual (Page 196)

3.24 Manual control
184
PC Control / Touch Control
3.24.3 Stir
All the connected stirrers can be controlled manually.
Select the [Stir] function in the Manual control dialog.
The connection (MSB 1...4) and (in brackets) the stirrer type are
shown for each Stirrer.
You can increase the stirring rate with [u] or [+] and decrease it
with [v] or [-]. The stirring direction changes as the sign changes
("+" means counterclockwise and "–" means clockwise when seen
from above). The stirring rate can also be altered while the stirrer is
running. The default setting 8 corresponds to 1000 rpm (see
Section 4.1.5, Fig. 4.14).
[Start] starts stirring and [Stop] stops it.
If you have connected more than two stirrers then you can open the
dialog for the additional stirrers with [More stirrers].
If you have started a stirrer manually then it will not be switched off
automatically at the start of a determination. This means, for example,
that you can switch on the stirrer before the start of a determination in
order to dissolve the sample. The stirrer will continue to run during the
determination until it is switched off in the determination sequence.
If a stirrer is used in the determination sequence it can nevertheless be
controlled manually at the same time. You can, for example, use the
manual control to reduce the stirring rate of a stirrer which has been
started in the determination sequence.