lion alcolmeter® 900
User Handbook Ref: RM92905 Issue: 1.0
5
Introduction
The
lion alcolmeter® 900
devices are hand-held portable instruments for
fast, on the spot determination of a subject
’
s breath (or blood) alcohol
concentration level. The
900
is the latest in the range of lion alcolmeter®
instruments produced by Lion Laboratories Limited of Barry, South Wales,
in the United Kingdom. Lion Laboratories Limited is a company specialised
in breath alcohol detection technology for applications in traffic law
enforcement, commercial health and safety and in medicine.
This handbook explains the following aspects of the instrument, so please
read it carefully:
•
Basic principles of operation.
•
How to run a breath test.
•
Interpretation of results.
•
Care and basic maintenance.
•
Calibration checking.
•
Calibration adjustment.
•
System configuration.
Principle of Operation
The
lion alcolmeter
®
900
uses an electrochemical fuel cell sensor to
measure the concentration of alcohol vapour
in the subject’s expired
breath. A measured amount of the breath sample is drawn from the
mouthpiece into the fuel cell using the instrument sampling system.
In the fuel cell, a current is generated in proportion to the breath alcohol
concentration; this is converted into a Voltage, amplified and displayed in
terms of the subject’s alcohol level.
