System Overview 33
Dilution tray wash mechanism operation
At initialization, the DWUD moves to the up position. If it is already up, it is lowered,
then raised.
During each 2-second cycle on the DTT, the 10 nozzles operate as follows:
Nozzle Probe Description
1
First nozzle
C1
Aspirates wash water.
2 Second nozzle
A1
Dispenses sample and wash water.
B1
Absorbs overflow liquid (abnormal
conditions).
3 Third nozzle
C2
Aspirates wash water.
4 Fourth nozzle
A2
Dispenses sample and wash water.
B2
Absorbs overflow liquid (abnormal
conditions).
5 Fifth nozzle
C3
Aspirates wash water.
6 Sixth nozzle
A3
Dispenses sample and wash water.
B3
Absorbs overflow liquid (abnormal
conditions).
7 Seventh nozzle
C4
Aspirates wash water.
8 Eighth nozzle
A4
Dispenses sample and wash water.
A5
Absorbs overflow liquid (abnormal
conditions).
9 Ninth nozzle
C5
Aspirates wash water.
C6
Aspirates wash water.
10 Tenth nozzle
D
Vacuums remaining liquid from cuvette.
Figure 1-25. Nozzle separation
If an assay is not running, you can operate the unit manually at the Manual Operation
window.
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