Metrohm 840 PC Control 5.0 / Touch Control User Manual

Page 76

3.10 Device manager

PC Control / Touch Control

[Load] can be used to load new racks from a card. In PC Control the

paths for Card 1 and 2 can be defined in the menu File/Preferences.

These may be directories on a hard disk, a network drive or any

removable storage medium. With Touch Control Card 1 or Card 2 can

only be selected when it is actually in the card slot. The new rack has to

be copied necessarily into a subfolder of "Files".

If this structure is not complied with, the new rack will not be found

because the software accesses directly subfolders of "Files".
It is easiest to create your own racks by using the [Copy] command to

copy an existing rack. In this case it is important that the rack name of

the new rack does not already exist. The selected rack code also must

not have been assigned already. The proposed rack code "110000" is

normally used for special racks.
The selected rack can be adapted with [Edit].

• Beaker radius samples: Enter here the actual radius of the sample

beakers at the general sample positions of the rack. This beaker

radius must not be smaller than the "Min. beaker radius" defined

in the device properties of the tower (see p. 60). Before the lift is

moved to the work position, these two values will be compared and,

if necessary, an error message will be displayed.

• Beaker sensor: When a sample position is moved to with the

MOVE command then, the beaker sensor at the Tower or the

Robotic arm will check whether a sample is present or not. If no

beaker sensor has been selected then no check will be made.

• 1. Calibration position gives the rack position of the first

calibration solution for automatic calibration with a USB Sample

Processor (see Section 4.7). If a sample position has been given as