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Description of the reader
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Description of the reader
2. Description of the reader
The equipment is designed specifically for use in clinical laboratories. In its basic instal-
lation the housing is almost fully closed, its physical appearance including colour meets
the requirements raised by medical laboratories. Its throughput is about 500 test strip
evaluations/hour.
The optical system is designed espe-
cially for evaluation of urine test strips.
The test strip is illuminated by white
light and the reflected light from the
reagent strip is detected by a colour
CCD sensor. The signals are digitalized
and this digitalized image is evaluated
by the built-in program.
Due to the CCD-technology, the instru-
ment is able to distinguish between
colour changes caused by reaction of
the test pad chemistry and non-spe-
cific colour development, caused by
the sample.
Operation is very simple, and doesn’t
require any special knowledge or dif-
ficult practice. When measurement
starts, the front door opens and the
conveyor assembled onto a carriage
moves into the measuring position.
The strip needs to be placed on the
conveyor. Both the conveyor and the
carriage are driven by a DC motor.
Fig.1 Front view of the CombiScan
®
500 urine analyzer
LCD
Controll Keys
Numeric Keys
Function Keys
Front Waste-bin
Fig. 1
Carriage Strip Pumper
Front Shaft
Support
Rear Shaft Cylinder 1 Cylinder 2
Belts
Fig. 2 Description of the parts for installation
Fig. 2
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