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Dayton DUI Attorney Charles Rowland > Posts tagged "Florida"

Problems With The Intoxilyzer 8000: You Blew Too Much!

The Intoxilyzer 8000 measures how much breath you provide by something called a 'pressure transducer.' Instead of directly measuring the volume of your breath by a pressure switch, like the old Intoxilyzer 5000 did, the 8000 indirectly measures breath. Did you blow during an arrest? Watch this video. Not only is it needlessly complicated, it simply doesn't work! The flow sensor systems in Florida's Intoxilyzer 8000's are so unreliable that FDLE ordered that police STOP KEEPING RECORDS of the system in monthly checks. In 2011, a system-wide check showed that 40% of the machines in Florida couldn't accurately measure breath volume!...

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Intoxilyzer 8000: The More You Blow

The Intoxilyzer 8000 is Ohio's breath testing device in DUI cases.  One of the major flaws of the machine is that its testing protocol can result in inflated tests. The more you blow, the higher it goes.Wondering Should you blow? Attorney explains in this video. The protocol for the Intoxilyzer 8000 in Ohio requires that you produce merely 1.1 liters of breath, less than the amount of air required to fill a two liter pop bottle.  The average adult can exhale between three and four liters of air.  If you are unlucky enough to be tested on this machine, the police...

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Infrared Spectroscopy and the Falsely High Breath Test (by DaytonDUI)

The Intoxilyzer 8000 operates using the scientific principle of infrared (IR) spectroscopy, which identifies molecules based on the way they absorb infrared (IR) light.  More specifically, when molecules in a breath sample are exposed to IR light the way they vibrate changes due to the bending of the (C-O, O-H, C-H, C-C) bonds.  Each type of bond absorbs light at a known wavelength, thus the amount of IR absorption identifies a substance as ethanol and how much ethanol is in the sample.But here’s the rub…  The machine can identify any compound containing a methyl group molecular structure as ethanol thereby...

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