Siemens ADVIA 2400, Operator'S Manual, Page: 141 / 200

Maintenance 141
1)
Thumbscrew
2)
Tab
3)
Detector Unit
Figure 5-27. Reaction and dilution cuvette components
1. Put the system in Standby Mode.
WARNING
Failure to put the analyzer into Standby mode will result in the RRV bath oil over-
filling. Excess RRV bath oil can damage the spectrophotometer when the RRV
cuvettes are reinstalled.
Turn off the power before removing or replacing cuvettes, to allow the RRV to move
freely.
2. Remove the 13 cuvette sets on the reaction tray (RRV).
a.
Unfasten the 2 thumbscrews (
1
) on each set.
CAUTION
Be careful not to get RRV bath oil inside the cuvette. If you do, allow the cuvette to
dry overnight.
CAUTION
Be careful not to drop the cuvette set screws into other components of the instrument.
Do n ot remove the cuvette if it is in front of the detector (
3
).
a. Hold the cuvette set by the tab (
2
) and lift it from the tray.
b. To remove the cuvette sets located by the detector unit or under the cuvette wash
station (WUD), rotate the reaction tray by hand until the cuvettes are in an
accessible location.
3. Inspect the reaction bath oil in the RRV bath ring.
•
If particulate matter is found, remove it with a transfer pipette or other similar
device.
•
If the contamination is more drastic, such as a WUD overflow causing large
quantities of liquid to float on the oil, then discontinue this procedure and call
your local technical support provider or distributor.
4. Install the new cuvette sets on the RRV and fasten the set screws.