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Introduction

The Grove - Gas Sensor (MQ3) module is useful for gas leakage detecting (in home and industry).

It can detect Alcohol, Benzine, CH4, Hexane, LPG, CO. Based on its fast response time.

Measurements can be taken as soon as possible. Also the sensitivity can be adjusted by the

potentiometer.

Содержание Grove MQ3

Страница 1: ...1 Grove Gas Sensor MQ3 Version 1 0 Release date 9 20 2015 Wiki http www seeedstudio com wiki Grove_ _Gas_Sensor MQ3 Bazaar http www seeedstudio com depot Grove Gas SensorMQ3 p 1418 html ...

Страница 2: ...2 Document Revision History Revision Date Author Description 1 0 Sep 21 2015 Victor He Create file ...

Страница 3: ...ory 2 1 Introduction 2 2 Features 3 3 Application Ideas 4 4 Mechanic Dimensions 5 5 Usage 6 5 1 Suggest Reading for Starter 6 5 2 Hardware Installation 6 5 3 How to use 7 6 Support 10 7 Version Tracker 11 8 Resources 12 9 Licensing 13 ...

Страница 5: ...dule is useful for gas leakage detecting in home and industry It can detect Alcohol Benzine CH4 Hexane LPG CO Based on its fast response time Measurements can be taken as soon as possible Also the sensitivity can be adjusted by the potentiometer ...

Страница 6: ...3 2 Features High sensitivity to alcohol and small sensitivity to Benzine Stable and long life Fast response and High sensitivity ...

Страница 7: ...4 3 Application Ideas They are suitable for alcohol checker Breathalyser Toys ...

Страница 8: ...tems Parameter name Min Type Max Unit System Characteristics VCC Working Voltage 4 9 5 5 1 V PH Heating consumption 0 5 750 mW RL Load resistance can adjust RH Heater resistance 33 Ω Rs Sensing Resistance 1 8 MΩ Scope Detecting Concentration 0 05 10 mg L ...

Страница 12: ...imum concentration we can test is 0 1mg L and the maximum is 10mg L However we can t provide a formula because the relation between ratio and concentration is nonlinear But also we can convert mg L to ppm it may be convenient for us to watch the value ...

Страница 13: ...10 6 Support Ask questions on Seeed forum ...

Страница 14: ...11 7 Version Tracker Revision Descriptions Release v0 9b Initial public release 16 Aug 2011 v1 4 Replace some components 27 Aug 2014 ...

Страница 15: ...12 8 Resources File Gas Sensor Eagle files zip File Gas Sensor Schematic pdf File MQ 3 pdf ...

Страница 16: ...13 9 Licensing This documentation is licensed under the Creative Commons Attribution ShareAlike License 3 0 Source code and libraries are licensed under GPL LGPL see source code files for details ...