24 ADVIA 2400 Operator’s Guide
Reaction tray washer operation
When initialized, the WUD moves to the up position. If it is already up, it is lowered,
then raised.
To advance the cuvettes to the next wash nozzle, the RRV rotates a full-turn.
During each rotation (2-second cycle), the nozzles operate as follows:
Nozzle Probe Description
1 First nozzle A Aspirates reaction liquid.
B1 Dispenses wash water.
H1 Absorbs overflow liquid (abnormal
conditions).
2 Second nozzle C1 Aspirates wash water.
D Dispenses detergent.
H2 Absorbs overflow liquid (abnormal
conditions).
3 Third nozzle E Aspirates detergent.
B2 Dispenses wash water.
H3 Absorbs overflow liquid (abnormal
conditions).
4 Fourth nozzle C2 Aspirates wash water.
F Dispenses cell conditioner.
H4 Absorbs overflow liquid (abnormal
conditions).
NOTE: The fourth (4) and fifth (5) nozzles are
separated by a width of six cuvettes.
5 Fifth nozzle G Aspirates cell conditioner.
B3 Dispenses wash water.
H5 Absorbs overflow liquid (abnormal
conditions).
6 Sixth nozzle C3 Aspirates wash water.
7 Seventh
nozzle
D
Figure 1-16. Nozzle separation