ChemoMetec NC-200 - Manual (Page 28)

5 Operation of the NucleoCounter
991-0203 Rev. 1.1 Sep. 2012 14
Figure 9. Illustration of how to hold and place the cassette in the fixture
5.2.1 Actuator movements
When a cassette is analyzed after Run is pressed, the piston actuator will move the piston
rod down through the cylinder of the cassette. Hereby, the sample material is transported
to the cassette measurement chamber. The form and dimensions of the flow channels
facilitate effective mixing of the sample. Sensors monitor sample flow. When the sample
has been correctly loaded into the measurement chamber, the pi ston is stopped.
5.3 Result presentation
Depending on the type of analysis performed the result will be present ed on the PC within
a few seconds and the fluorescent image(s) will be stored on the hard disk. Typical process
time is less than a minute for viability analysis using one Via-1 Cassette.
5.4 Protection of the optical system
The lid covers the fixture. This lid is designed to protect the area from dust and other
potential contaminants, and to keep external light from interfering with the fluorescent
image recording. The lid is mounted with a magnetic hinge.
Unless inserting or removing a cassette or cleaning the fixture, the lid should be closed at
all times to protect the optical system of the NucleoCounter NC-200.