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ChemoMetec SP-100 User Manual

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5 Operation of NucleoCounter SP-100

32

5.18 Measuring (“Run” button)

When a cassette has been loaded and inserted into the instrument, the measurement is
activated, by pressing the “

Run” button. The display shows:

Display Text Type 30

Preparing

Preparing

Preparing

Preparing

Figure 60.

The instrument is in the “

preparing” mode

During ”

preparing”, the actuator moves the piston rod down through the barrel of the

cassette. Hereby, the sample/dye mixture is transported to the cassette measurement
chamber. The form and dimensions of the flow channels facilitate effective mixing of
sample and stain. Sensors monitor sample flow. When the sample has been correctly
loaded into the measurement chamber, the piston is stopped.

Now the display shows:

Display Text Type 31

Analysing

Analysing

Analysing

Analysing

Figure 61. The instrument is in the “analysis” mode

The analysis will occur after a few seconds and the fluorescent image is recorded. Once
recorded, the image is analysed by the instrument’s integral software (firmware). Upon
completion of the analysis, the result is shown on the display. The entire process takes
approximately 30 seconds. If an external computer is connected, the results and the
recorded fluorescent image can be viewed using SemenView software.

After each measurement the cassette can be safely removed (see

Section 5.17

).

Sometimes, however, the complete process described above may be interrupted. Please
familiarize yourself with

Section 8

Troubleshooting, Error messages

.

Instruments with the Viability Option included

If the instrument is in the viability mode (F31 is On), then the following text is
displayed when the “

Run” bottum is activated: