lion alcolmeter
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SD-400 User Handbook [v7]
4.4 Manual Breath Sampling
The standard factory setting is that a breath sample can also be
taken manually. To do this, press C while the subject is still
blowing, but just before they run out of breath - so that deep-
lung air is still taken for analysis.
4.5 Automatic Switch Off
If the SD-400 is left switched on but not used, after a pre-set time it
will switch itself off automatically. Before doing so it emits a series of
high-pitched beeps. To cancel auto-power down at this time, press
and hold down the On/Off (1-0) switch until two beeps are heard.
4.6 Last Test Recall / Memory Capacity
When the READY light is on, press and release D. The display
shows the remaining memory capacity, then the Test Number and
the result of the last breath test, with its date and time. (See also
‘Using the SD-400 with a Printer’).
As standard, the SD-400 is supplied with 500-test memory, set to
Shunt [when the memory is full, the newest test is saved and the
oldest deleted].
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