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Cedex HiRes Analyzer Operator’s Guide
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If the error message appears, check the Prescan at the end of the measurement to see if it is acceptable or
not. If the fl ow chamber appears to have had dirt or impurities in it, then carry out a Standard Clean before
performing a new measurement (see “
Carrying out a Cleaning Routine”). If the Prescan is acceptable, the
measurement results can still be used.
The 45 second sedimentation time set by default for the Std. Size and Max. Size may not allow enough
time for a prescan to be performed. In some cases of slow computer systems, the prescan may require slightly
more time than the default sedimentation time. If this occurs, a message “Warning: sedimentation time was
exceeded” will appear in the main Cedex Control Center window. However, there will be no effect on the
measurement procedure other than a slightly longer sedimentation time. The sedimentation time can be
increased for the Std. Size and Max. Size, if desired, in order ensure a sedimentation time that is longer than
the prescan time (see “Editing an Existing Cell Type”). Alternatively, the Prescan function can be turned off
(see “Turning off the Flow Chamber Prescan”).
3.3.2. End of Measurement
A cleaning procedure automatically begins immediately after the scanning ends. The entire Liquid Management
system is rinsed during this procedure (Ultra Fast Clean). Once this procedure has been completed, a green bar
appears in the Measurement window. In addition, the message “Process fi nished EndEvent (Measurement)”
appears in the Event window on the Cedex Control Center.
In the Measurement window, the top section of the Result Data area displays the overall results of the
measurement. The bottom section displays, in succession, the results from each image taken. When a line is
selected in the list of results of single images, the corresponding image will be displayed in the Image area (see
“Image Area”).
Figure 41: Cedex HiRes Analyzer Measurement window with the fi nal results
The measurement results can be directly printed out via the Print button in the middle of the measurement
window.
To set up a new measurement, click on the New Measurement button in the middle of the Measurement
window. If the next measurement belongs to the same Reactor ID as previous measurements, then the
consecutive Sample ID will automatically be entered into the Sample ID area by the analysis software without
further entries being necessary. If a different Sample ID is desired, the new Sample ID can be typed in manually.
Carrying out a Single Measurement
Preparing the Sample and Attaching it to the Multi Sample Tray or Sample Port
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