Specifications

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to use it or not. With that being said, system test procedure plays a great role in
our development of the product.
5.5.1 Handheld Breathalyzer calibration and accuracy
Breath alcohol testing instruments are calibrated and checked for accuracy
utilizing an ethanol standard with a known alcohol concentration. There are two
types of standards that are widely accepted and commonly used: Wet Bath
Standards and Dry Gas Standards.
Wet Bath Standards Calibration
In all cases, it is important that the calibration equipment set such as,
compressed gas tanks, simulators and simulator solutions are used and
maintained only in accordance with the quality assurance plans provided by their
respective manufacturers to insure that they produce consistent and reliable
samples.
Required elements:
I. Glass jar which holds 500cc of solution.
II. Jar head contains heater thermostat, stirrer, thermometer, and inlet and
outlet ports for sampling headspace gas standing above the solution.
III. Solution is a water/alcohol mixture of a certified BrAC/BAC concentration.
Calibration guidelines:
I. Attach tubing to the inlet port.
II. Remove the glass container from the simulator top housing. Make sure all
parts all clean and dry. (To prevent breakage, do not strike the thermostat
or mercury thermometer against the glass container).
III. Pour certified simulator solution to the 500 ml mark on the glass container.
(Do not over fill).
IV. Reassemble the simulator by replacing the container into the top housing;
be sure the container is properly seated to the top housing. (Do not over
tighten).
V. Plug simulator into electric outlet. Turn the power ON and allow the
solution to heat to 34°C. This will require approximately 15 minutes. The
heater lamp is lit when the heating element is heating. The heater lamp is
OFF when the simulator has reached the proper temperature of 34°C. (It
is normal for the heater lamp to rapidly turn on and off as the instrument
cycles.) Once the heater lamp turns OFF, wait an additional 10 minutes
prior to testing.