Metrohm 840 PC Control 5.0 / Touch Control - Manual (Page 73)

3 Operation
PC Control / Touch Control
61
head cannot move to any lower position than the value entered here
(0 mm = upper lift stop position).
• Under Min. beaker radius you can enter the smallest permissible
sample beaker radius for automatic and manual operation. This is
also a safety setting in order to prevent a wide, fully equipped
titration head from trying to enter a narrow sample vessel. Before
the lift is moved to the work position, a comparison will be made
between the value entered here and the beaker radius given in the
rack table (see p. 63) and, if necessary, an error message will be
displayed. There will be no check if no radius has been defined.
• The Lift rate can be set for manual operation.
• The rotation increment is the angle about which the sample rack
should be rotated relatively to the momentary position. This rotation
increment is used for the settings + rotate and – rotate in the
MOVE command.
• The axial distance is the distance between the axis of rotation of
the sample rack and the swing axis of the robotic arm. This value
depends on the model of the USB Sample Processor and is
specified in the online help.
Swing Head
The assigned swing angle and the specific work position are shown for
each external position in the properties of the Swing Head.
The details of the dialogs [Ext. pos. 1-4], [Robotic arm] and
[Adjustm. data] are described on the following pages.
[Edit] can be used to assign a specific work position and a swing
angle to each external position.