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HOW ALCOHOL SENSOR WORK

By Admin on

Alcohol  Sensor

Alcohol Sensor for use in Breathalyzer’s or in an alarm unit, to detect the presence of alcohol vapors. This sensor unit offers very high sensitivity, combined with a fast response time. The unit will work with a simple drive circuit and offers excellent stability with long life. When all the acetic acid is cleared out of the FUEL CELL, the instrument is ready to analyze another sample.


 Character

* High sensitivity

* Fast response and resume

* Long life and low cost

* Mini Size


Application

It has good sensitivity and fast response to alcohol, suitable for portable alcohol detector.

Specifications

 

Supply Voltage =12V DC

Current IH 120±20mA

 Power PH ≤ 140 mW

it reflects change from voltage change on fixed or adjustable relations between resistance and gas load resistance. Normally, it will take several concentrations, resistance of the sense or minutes preheating for sensor enter into stable reduce when gas concentration increases working after electrified;

Usage

For sensor, handmade welding is optimal way. If use wave crest welding should meet the following

conditions:

Soldering flux: Rosin soldering flux contains least chlorine

Speed: 1-2 Meter/ Minute

Warm-up temperature 100±20℃

Welding temperature 250±10℃

1 time pass wave crest welding machine

If disobey the above using terms, sensors sensitivity will be reduced.


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