lion alcolmeter
®
SD-400 User Handbook [v7]
the subject will put in his/her mouth),
and attach it to the sampling
port: either way round.
Instruct the Subject
Tell the subject to take in a deep breath, hold it, then place the lipped
end of the mouthpiece in their mouth and seal their lips around it.
They must then blow STEADILY [not hard] and CONTINUOUSLY
until you say stop, and keep their hands away from the instrument.
Take the Breath Sample
The subject now blows. If he or she
blows hard enough the FLOW light
comes on and there is a continuous
tone; the subject must then continue to
blowing until the ANALYSING light
appears and a double beep is heard.
This means that the breath sample has
been taken into the sensor for analysis,
so the subject can now stop blowing.
Note the Alcohol Reading
Wait for the ANALYSING light to
go off, then note the subject’s
reading. If no alcohol was present
this will appear very quickly; but if
alcohol was present it may take up
to 30 seconds for the final reading
to be obtained. This will then be
displayed for a pre-set time.
12
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