Principle of Operation
The lion alcolmeter
®
600 uses an electrochemical fuel cell sensor to
measure the concentration of alcohol vapour in the subject’s
expired breath, a measured amount of which is drawn from the
mouthpiece into the fuel cell by means of the sampling system.
In the fuel cell a voltage is generated in proportion to the breath
alcohol concentration: it is therefore amplified and displayed in
terms of the subject’s alcohol level.
The breath sampling system is factory-set to sample deep-lung air;
it is the breath from the bottom of the lungs that truly reflects the
amount of alcohol in the body.
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