Introduction
13
Test principle
Two lines (signal and control line) in the detection zone of the test strip indicate whether the analyte to
be determined is present in the sample material. These lines are detected by the cobas h 232 meter
with the help of an LED (lighting the detection zone) and a camera sensor (imaging the detection
zone). The test signal (signal line) increases in intensity in proportion to the concentration of the
respective analyte. Integrated system software converts the signal intensity to a quantitative
result, which is then displayed on the screen at the end of the measurement.
The accuracy of the measurement is ensured through a simple principle: Every test strip box
includes a code chip that contains all test and lot-specific information in electronic format. The
test strips are labelled with a barcode on their underside and are hereby assigned to a specific
code chip. When you insert a test strip from a new strip lot for the first time, the meter prompts
you to plug in the corresponding code chip. The information is now read from the code chip and
stored for future tests.
Contents of the Pack
■ cobas h 232 meter
■ Power adapter
■ Universal Battery Pack
■ Battery compartment cover
■ Torx screw driver for mounting the battery compartment cover
■ Operator’s Manual in English
■ Quick Reference Guide
■ CD-ROM with operator’s manual in other languages
Optionally available (not included in the scope of delivery):
■ Handheld Base Unit (docking station) for data transfer within a network or via USB
(Universal Serial Bus)
For a personal printout of the operator’s manual in your language, contact your local Roche
organization (see Chapter A).
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