Metrohm 824 Easy Sample Changer - Manual (Page 8)

1.1 Instrument description
2
824 Easy Sample Changer, Introduction
Standard sample racks
Exchangeable standard sample racks are available for a wide range of
different sized vessels. Each rack has a predefined "special beaker" po-
sition. This is used for placing a rinsing or conditioning beaker on the
rack. In this way, for example, it is possible to condition or rinse an elec-
trode after each titration.
Standard methods
The predefined standard methods of the 824 Easy Sample Changer not
only have an optimized sample processing sequence but also have
both a start sequence and a final sequence which are carried out be-
fore and after a series of samples respectively.
759 Swing Head
For processing a larger number of samples the 759 Swing Head can be
installed on the sample changer. This drive is used instead of the stan-
dard titration head and can, for example, be fitted with a titration head
for direct titration in the sample vessels. By using the 759 Swing Head it
is possible to use multi-row sample racks and therefore to process lar-
ger numbers of samples within a very short time.
The basis
The 824 Easy Sample Changer was developed on the basis of the time-
proven Metrohm 730 Sample Changer and therefore offers the possibil-
ity of the free definition of run sequences, method parameters and rack
data throughout a very wide range. This requires the use of the
“6.21.42.010 SC Controller” Sample changer keypad.