lion alcolmeter
®
500 Mk IV
User Handbook
12
small hole in the side of the tube: it may be
attached either way round, whichever is
more convenient to you, the subject or the
situation. But the subject
MUST
blow
through the wide-bore,
lipped
end, or the
instrument’s automatic sampling system will
not operate.
A NEW mouthpiece MUST be used for each complete
breath test: but it NEED NOT be changed for repeated
blows by the same subject in the same procedure
NOTE:
the mouthpiece used with the
500 MK 4
is the same as that
supplied for use the
lion alcolmeter
®
S-D2
and earlier
500
versions.
2.7 Leather Pouch
This protects the instrument from most levels of
shock likely to be encountered during operational
use, and is fitted with a mouthpiece storage
pocket. The
500
should normally be left in place,
in its pouch, during use:
2.8 Power Unit
The power unit is located in the rear of the instrument. It holds 2 x
AA
batteries: these should provide enough power for
at least
seven
hundred and fifty breath tests [depending on operating conditions].
DO NOT USE RECHARGEABLE AA BATTERIES
Lipped End
