Metrohm 730 Sample Changer - Manuel (Page 5)

1.2 Scope on Applications
730 Sample Changer, Overview 2
The sequences for the processing of each sample are freely de-
finable within broad boundaries. The same is true for the start and
end sequences that are executed once either before or at the end
of a sample series. This is advantageous specially for titrations.
The electrode can be conditioned prior to use or subjected to a
special rinse procedure at any time.
With the help of the LEARN mode, which is provided for creating
process methods, a method can be created easily.
Standard interchangeable racks are provided for various beaker
sizes. Freely-definable "special beaker" positions can be defined
for every rack. They define a rack position for rinse or conditioning
beakers that can then be selected in any sub-sequence.
Position tables which describe user-defined special racks may be
downloaded via RS232 interface with the aid of a suitable PC
software.
In order to increase the number of samples that can be treated,
the 759 Swing Head can be installed. This drive is installed in-
stead of the normal titration head and is obtainable in two ver-
sions: either with a titration head for the direct titration in the sam-
ple vessels or with a transfer head, with the help of which the
samples can be transferred from test tubes into a central titration
vessel.