User selectable alert levels Digital indication of high and low levels Hard plastic mouth pieces Figure 2.5 AlcoSafe Kx6000s breathalyzer 2.3 Breathalyzer Sensor Operation When the user exhales into a breath analyzer, any present in their breath is to at the : + 4H+(aq) + 4e- CH3CH2OH(g) + H2O(l) → CH3CO2H(l) At the , atmospheric oxygen is : O2(g) + 4H+(aq) + 4e- 2H2O(l) → The overall reaction is the oxidation of ethanol to acetic acid and water. CH3CH2OH(l) + O2(g) CH3COOH(l) + H2O(l) → The produced by this reaction is measured by a microprocessor,and displayed as an approximation of overall (BAC) by the Alcosensor. CHAPTER 3 DESIGN OF THE BREATHALYZER DEVICE 3.1 Overview
User selectable alert levels Digital indication of high and low levels Hard plastic mouth pieces Figure 2.5 AlcoSafe Kx6000s breathalyzer 2.3 Breathalyzer Sensor Operation When the user exhales into a breath analyzer, any present in their breath is to at the : CH3CH2OH(g) + H2O(l) → CH3CO2H(l) + 4H+(aq) + 4e- At the , atmospheric oxygen is : O2(g) + 4H+(aq) + 4e- → 2H2O(l) The overall reaction is the oxidation of ethanol to acetic acid and water. CH3CH2OH(l) + O2(g) → CH3COOH(l) + H2O(l) The produced by this reaction is measured by a microprocessor,and displayed as an approximation of overall (BAC) by the Alcosensor. CHAPTER 3 DESIGN OF THE BREATHALYZER DEVICE 3.1 Overview
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