lion alcolmeter
®
500 Mk IV User Handbook
41
11: Instrument Calibration
11.1 General Information
Your instrument is set up for use with a dry gas alcohol vapour
standard. IF A WET VAPOUR STANDARD IS TO BE USED, THIS
CAN ONLY BE DONE AFTER CONTACTING LION AND
RETURNING THE INSTRUMENT TO LION’S FACTORY.
You may use any alcohol vapour standard in the range 0.20 to
0.40mg/L to calibrate the 500. The alcohol level in the standard does
NOT have to be at any other particular value - provided that its
actual value is known.
You may use either a wet-bath simulator, or dry-gas standard such
as the Lion AlcoCal
®
product. However, for technical reasons, the
instrument MUST ‘KNOW’ which type of standard is to be used [Wet
or Dry] - as well as its actual alcohol concentration value.
IMPORTANT:
Please read the instructions in this section carefully,
and be sure you understand each part, BEFORE
attempting to calibrate an instrument for the first time.
11.2 Calibration ADJUSTMENT Mode
In Calibration ADJUSTMENT Mode, which is the second option in
the Supervisor Menu, the digital display does not show the
measured value of the alcohol value of the standard vapour [as it
would during breath analysis]. Instead the value of the standard is
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