Measure Modes; Continous (Default Selection); Volumetric Counting With Electrodes; Volumetric Counting With Volume - Partec CyFlow Cube Series Instrument Operating Manual

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CyFlow Cube Instrument Operating Manual

Measure modes

The following measure modes can be selected prior to start of an analysis:
Continuous

Volumetric counting with electrodes

Volumetric counting with volume

Events in region

Continous (default selection)

This default mode will allow you to run your sample until its levels reached the stop electrode.
Volumetric Counting with Electrodes
This measuring mode uses the START and STOP electrodes of the sample port to define a fixed sample
volume. In a standard sample port this "counting volume" is 200 µl. In a pre-counting phase the sample is
acquired normally as in continuous acquisition mode. Reaching the START electrode the data are
cleared and the volumetric counting phase starts. Reaching the STOP electrode the counting procedure will
be terminated and a system cleaning cycle will be initiated automatically
Volumetric Counting with Volume
In the measure mode volumetric counting with volume the counting volume is flexible and can be pre-
selected by the user. In a first analysis phase the sample is acquired normally as in continuous acquisition
mode. Reaching the pre-selected volume the data are cleared and the volumetric counting phase starts and
the pre-selected volume will be analyzed. The volume can be used as the basis for concentration
determination.
Events in Region
The Events in Region measure mode allows to define a number of particles within a specified region to
operate as STOP condition (select the respective MaxCount function in the REGIONS register).
Advice: for the measure modes Volumetric counting with volume and Events in Region there will be a
remaining sample volume left-over within the sample tube. In this case the cleaning cycle will only be
triggered when the START button
Be aware: for all measure modes the sample analysis automatically stops when the sample is finished (the
stop electrode is reached) even if the selected end criteria is not yet realized.
Rev018_2012-01-27
is pressed. Subsequently the data can be saved.
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Working principle of the
Absolute Volumetric
Counting with Electrode