Roche Diagnostics
Operator’s Manual · Version 3.4 A-33
Cedex Bio analyzer 2 Introduction to the analyzer
Daily operation
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 recommends to
limit the ID to 13 characters.
Sample barcode You can use sample tubes with or without barcode.
Dilution Pre-dilution may be used when performing calibrations and measurements. Pre-
dilution is part of the application definition and cannot be changed by the operator.
Post-dilution is run when a rerun is requested by the operator after a measurement
has finished. The post-dilution factor cannot be changed or altered by the operator. It
is predefined.
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 recommends to
limit the ID to 13 characters.
Host connectivity The Cedex Bio analyzer can be connected to an external laboratory information
system (LIS) and a host computer for downloading order information and uploading
results.
If the analyzer is connected to a host system, the following setups can be configured:
o Downloading order information
When you identify a sample using the barcode scanner, the appropriate order
information is automatically assigned to the order on the system. (The order
information was downloaded previously.)
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