lion alcolmeter
®
500 Mk IV User Handbook
30
The alcohol level in this gas is precisely known and is shown in units
of mg/L. The label also carries an expiry date, beyond which the gas
must not be used.
Please follow the instructions for use of whichever breath alcohol
standard you are using to check the 500, including making any
relevant adjustment for local altitude.
7.3 The AlcoCal
®
Connector Tube
Place one of these on the cylinder
outlet tube, as shown here. The
mouthpiece on the instrument is then
placed over this tube so as to sample
the alcohol vapour from the cylinder
during the checking procedure.
Replace the Connector Tube if it is
cracked or split. Each AlcoCal
®
cylinder is supplied with a pack of ten tubes [product code:
SA10040].
7.4 Calibration CHECK Mode
This mode enables you to take the gas sample manually, irrespective
of how the 500 is set up for breath analysis. This is necessary as the
gas flow rate from an AlcoCal
®
or breath simulator will generally be
too
low to activate the 500’s automatic sampling system.
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