Roche Cedex Bio, Operator'S Manual

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Roche Diagnostics
A-54 Operator’s Manual · Version 3.1
3 Hardware Cedex Bio System
Hardware overview
The following table lists a few typical tubes that are suitable, and it gives the dead
volume for each of them.
Roche recommends using sample cups because they need much lower dead volume
compared to primary tubes. The following table lists recommended cups.
Cuvettes
WARNING
Incorrect results due to inappropriate tube and cup placement
Inappropriate tube and cup placement may lead to inaccurate pipetting and consequently
to incorrect results.
Make sure that the primary tubes are placed centrally and perfectly vertically in the holders
in the sample area and that they are inserted firmly.
Make sure that secondary tubes are placed centrally on the primary tubes and that they
rest fully on them.
NOTICE
Probe damage due to not removing primary tube caps
The probe is not designed to pierce tube caps. It can get damaged when trying to pierce
tube caps.
Always remove the caps of primary tubes before placing them on the instrument.
Tube name Dead volume
13 x 75 mm 500 μ L
13 x 100 mm 500 μ L
16 x 75 mm 700 μ L
16 x 100 mm 700 μ L
Table A-6 Typical examples of suitable tubes
Cup name Dead volume Sample volume Placement
1.5 mL reaction tube 100 μ L 1.5 mL Using adapter cups
Roche Diagnostics
Standard false bottom
tube 75 μ L 2.5 mL Directly on sample area
Table A-7
Typical examples of suitable tubes
All optical measurements are made using the same transparent
plastic containers, called cuvettes. Samples are automatically
transferred from a sample tube to the cuvettes on the cuvette ring.
Cuvettes are disposable to eliminate carry-over.