Metrohm 824 Easy Sample Changer User Manual

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1.1 Instrument description

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.