First, CA2000 Introduction

 CA2000 is a highly reliable, high-precision, respiratory-type alcohol detector. Its core components change the use of new high-tech micro-oxide semiconductor, can accurately detect alcohol in gas, and not smoke, cola, coffee and other non-alcoholic interference gases. CA2000 compact and lightweight, simple operation, is the best choice for portable applications.

 Second, detection principle

 As with N-type conductive oxide exposed in the atmosphere will be as a result of oxygen adsorption and reduce the number of internal e-its resistance increases. Subsequently, if the atmosphere to restore the existence of a particular gas, it will react with oxygen adsorption, so that the electronic oxides increase, resulting in reduced resistance oxides. Semiconductor - oxide sensor resistance through the analysis of changes in gas concentrations.

 Third, technical indicators and characteristics of

 Sensor: Highly selective semiconductor - oxide alcohol sensor

 The three figures (x.xx% BAC / BRAC)

 Detection range: 0.00 ~ 0.40% BAC or 0.00 ~ 4.00mg / l

 Detection accuracy: ± 0.01% (0.01BAC) or ± 0.05mg ter (0.50 BRAC)

 Recovery time: 30 seconds

 Preheating time: 20 seconds

 Induction time: 5 seconds

 Very low power consumption: a 9-volt battery to be detected more than 300.

 Bright characters: red LED display data, clearly visible at night.

 The voice of alarm: the alcohol content exceeded, the alarm buzzer.

 Calibration: BAC simulator.

 Fourth, methods of operation

 1, press the power switch, apparatus for internal self-test and pre-show from the countdown to the 200-0, which lasted 20 seconds.

 2, the end of time voice prompts change at the same time green light, yellow light flashing at the same time the middle of that equipment properly, testing can start.

 3, tube blowing air intakes at 4 seconds, if alcohol is detected, buzzer alarm, red and green light flashes at the same time. In four seconds, showing the concentration of data, if the concentration of between 0.00 and 0.40, only the green light flashes; if greater than or equal to 0.50, only the flashing red light, accompanied by shortness of voice alarm. To maintain the concentration data showed that 15 seconds after the device into OFF. (Note: Due to the high sensitivity of display mode, so if the machines have a small residue of alcohol gas, there will be a small digital display)

 4, blowing in from the alcohol or not detected within 30 seconds after boot without any testing, apparatus display from 000 to OFF.

 5, when the equipment shows OFF, there is a need to start measuring.

 V. Notes

 1) to the porosity within the prohibition of blowing smoke; pore fluid can not enter; do not obstruct the stoma.

 2) yellow light indicated that the low supply voltage, in need of replacement batteries

Alcohol Testers