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Course of a sample series – Metrohm 726 Titroprocessor User Manual

Page 95

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5. Methods and determinations

726 Titroprocessor, Instructions for use

89

89

5.3.6 Course of a sample series

The following points should be taken into account:

Check whether all sample beakers have been placed on the rack

correctly. It is absolutely necessary that the beaker containing the first

sample of the series is present. Other sample beakers can be added as

the series is being processed.

After the start of the sample series the necessary storage space is

reserved in the working memory according to the settings under
'Statistics'

. If not sufficient storage space is available the process

will be interrupted.

During the first determination of the series command sequence defined

in the methods of the OMOVE(…)OMOVE loop will be carried out a single
time.

In the following determinations in the series the neither the
OMOVE(…)OMOVE

nor the CMOVE(…)CMOVE loops will be carried out

(see below).

In the last determination in the sample series the CMOVE(…)CMOVE
loop defined in the method will be carried out.

These start and closing sequences are provided specially for sample

changer operation and can be used e.g. for conditioning or regenerating

sensors. For these applications the use of special beakers on the sample

rack is a good idea (see configuration, page 41).

Sample sequence

Start sequence OMOVE

Final sequence CMOVE

number of

samples

normal state

Course of a sample series

Course of a sample series

It is not absolutely necessary these start and closing sequences

(OMOVE/CMOVE) are defined at the start or end of a method. However,

please note that the method is processed strictly according to the sequence

of defined command lines.