Roche Diagnostics
A-26 Operator’s Manual · Version 3.4
2 Introduction to the analyzer Cedex Bio analyzer
Daily operation
Reagent and diluent handling
Reagent disk On the analyzer, the reagents are stored on a reagent disk. It provides space for 27
bottles, allowing up to 14 reagent sets to be installed on the disk, assuming that most
tests need two reagents. Extra diluents and cleaners are also loaded on the reagent
disk.
You can work with up to eight different reagent disks on one Cedex Bio analyzer.
You always load and remove bottles while the disk is on the analyzer. (The system
needs to know exactly what is loaded on the disk.)
When you finished running tests, you can remove the whole reagent disk, place it in a
reagent disk container, and store it in a refrigerator.
Bottles Cedex Bio reagents, diluents and extra cleaners are provided in uniform bottles. They
are supplied with two dimensional barcodes and placed on the reagent disk with their
cap removed.
Chimneys Chimneys are bottle inserts that reduce evaporation. For reagents that are especially
sensitive to concentration changes, Roche recommends using chimneys on the
reagent bottles.
To generally reduce evaporation, you may use chimneys on all reagent bottles.
Reagent set Up to three reagents can be required to perform a certain test. These reagents are
handled in reagent sets. You can define more than one reagent set for a test, but only
one can be active.
A reagent set is defined as soon as its first bottle is loaded. From this moment on,
whenever you remove or replace a reagent, you do so for all reagents of the set.
Each diluent or cleaner bottle is treated as a separate reagent set.
A Reagent disk
B Reagent bottle with barcode
C Chimney
Figure A-5 Equipment for reagent handling
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