Roche Diagnostics
Operator’s Manual · Version 3.1 A-31
Cedex Bio System 2 Introduction to the instrument
Daily operation
Sample tubes The Cedex Bio instrument can use both primary and secondary tubes (cups).
You can use any type of primary tube, as long as their dimensions lay within
prescribed limits. Roche recommend using approved cups only.
e
See Tubes on page A-53.
Sample ID The sample ID is an identifier of up to 23 alphanumeric characters that is unique
within a whole organization. It identifies the sample and is also used for host
communication.
Sample IDs are defined either by scanning a barcode or by typing them manually.
Because there is limited space when displaying lists on screens, Roche recommend to
limit the ID to 13 characters.
Sample barcode You can use sample tubes with or without barcode.
Dilution Pre-dilution is used when performing calibration.
Post-dilution is used when measuring samples.
(The dilution factor is part of the application definition and therefore does not need
to be defined by the operator.)
Removing sample tubes You can remove sample tubes as soon as pipetting is complete.
Order handling
Order Mode The order mode reflects the way in which you organize the tests on the test selection
screen.
Choose Easy if the reagents fit on one or two reagent disks and you work with one
test panel on the screen (You can fit up to 25 tests and profiles on this panel).
Choose Full if you distribute the reagents across several (up to eight) reagent disks
and if you predominantly work with specific groups of tests. You can assign up to 20
tests and profiles to each panel (tab).
Order ID The order ID is an identifier of up to 23 alphanumeric characters that is unique
within the laboratory. The order ID identifies the order and links it to the sample.
Order and sample IDs are often identical. Using separate IDs makes sense when
working with a host system.
Order IDs are defined either by scanning a barcode or by typing them manually.
Because there is limited space when displaying lists on screens, Roche recommend to
limit the ID to 13 characters.
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.
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