Sainsmart mq4 gas sensor has high sensitity to natural gas, methane, and could be used to detect both methane and propane. Im currently using this in a project and its working very well. Mq5 gas sensor applies sno2 which has a lower conductivity in the clear air. Lng, avoid the noise of alcohol and cooking fumes and cigarette smoke. It gives output in the form of some specific voltage value that is converted into ppm 6.
Sparc 2019 robot platform kits and spares menu kits and spares electroblocks foundation level. Mq4 methane natural gas sensor adc121c 12bit adc i2c. Jul 04, 2018 mq2 ch4 methane gas sensor manufacturers datasheet, including full specifications, 60500008mq2datasheet. Really cool sensor, cant believe how sensitive this is. The mq4 is capable of sensing methane or natural gas air concentration levels between 200 to 0ppm. Technical data mq4 gas sensor sparkfun electronics. The module version of this sensor comes with a digital pin which makes this sensor to operate even without a microcontroller and that comes in handy when you are only trying to detect one particular gas.
Is there any way to correctly measure increase of methane in the air using mq4 without heating not linking heater legs to gnd and v. Mq4 methane gas sensor module is a compressed natural gas sensor cng, which is mostly made up of methane ch4, it is suitable for sensing natural gas concentrations in the air. Structure and configuration of mq6 gas sensor is shown as fig. Producer says that mq4 sensor can sense methane natural gas easily with a range sensitivity from 300 to 0ppm, costs are very low, and can be easily plugged with arduino boards. The sensitivity can be adjusted by the potentiometer. Mq4 methane gas sensor detects the concentration of methane gas in the air and ouputs its reading as an analog voltage. Mq4 semiconductor sensor for natural gas sensitive material of mq4 gas sensor is sno 2, which with lower conductivity in clean air. Structure and configuration of mq8 gas sensor is shown as fig. Gas sensor mq4 registers the presence and concentration of natural gas and methane ch4.
Mq4 gas sensor datasheet, cross reference, circuit and application notes in pdf format. The grove gas sensor mq2 module is useful for gas leakage detectingin home and industry. Mq4 sensor pinout connections and power consumption. The concentration sensing range of 300 ppm to 10,000 ppm is suitable for leak detection. In this project, we will go over how to build a methane sensor circuit with an arduino. Sainsmart mq4 dc 5v 100ma 4 pin methane ch4 gas sensor. Methane gas sensor mq4 idealink kuwait saudi arabia. Structure and configuration, basic measuring circuit structure and configuration of mq2 gas sensor is shown as fig. The best results are given when gas is in liquid form, however, since situations like this are rare, it does its job pretty well when in gas form, too. Technical data mq2 gas sensor features wide detecting scope fast response and high sensitivity stable and long life simple drive circuit application they are used in gas leakage detecting equipments in family and industry, are suitable for detecting of lpg, ibutane, propane, methane,alcohol, hydrogen, smoke. For optimum use, it requires calibration after a preheat time of at least 24 hours.
Please read the mq4 datasheet 161k pdf for more information about the sensor. The sensor could be used to detect different combustible gas, especially methane, it is with low cost and suitable for different application. An internal preheater inside the sensor helps achieve the ideal sensing conditions, but the datasheet recommends over 24 hours for preheating to achieve optimal. Connecting five volts across the heating h pins keeps. The sensor need to be put 2 voltage, heater voltagevhand. You can find technical datasheet in pdf format provided by at the end of article. This semiconductor gas sensor detects the presence of methane natural gas at concentrations from 200 ppm to 10,000 ppm, a range suitable for detecting gas leaks. Mq4 gas sensor has high sensitivity to methane, also has antiinterference to alcohol and other gases.
Mq4 methane gas sensor pinout, datasheet, features, specs. Simple to use gas sensor suitable for ch4, natural gas, lng, avoid exposure to alcohol, cooking fumes, and cigarette smoke mq4 is used in gas leakage detecting equipment stable and long life sensitivity can be adjusted by the potentiometer. Methane gas sensor mq4 module example program moq4 natural sensor module test this type of sensor is commonly used for detecting natural gas methane leaks which might include flatulence. Connecting five volts across the heating h pins keeps the sensor hot enough to function correctly. Mq5 gas sensor has high sensitity to methane, propane and butane, and could be used to detect both methane and propane. This semiconductor gas sensor detects the presence of methanenatural gas at concentrations from 200 ppm to 10,000 ppm, a range suitable for detecting gas leaks. The sensor can operate at temperatures from 10 to 50c and consumes less than 150 ma at 5 v.
For example, the sensor could detect if someone left a. Contribute to paveldhqlib sensoranalogmq4 development by creating an account on github. Methane natural gas sensor module mq4 nightshade electronics. Ro means resistance of the sensor in environment of ppm methane, 20. To do that we need to implement the datasheet formulas to be able to calculate the gas concentration. I dont have to use an op amp to read the analog signal into the arduino so thats cool, all you need is 35v, ground and analog out. The mq2 gas sensor can detect or measure gasses like lpg, alcohol, propane, hydrogen, co and even methane.
The ideal sensing condition for the mq4 is 20c 2c at 65% 5% humidity. Mq4 gas sensor has high sensitity to methane, also to propane and butane. Cons i ordered another sensor, the mq5 that looks exactly like the mq4. In this project we are going to hookup an mq4 arduino compatible gas sensor with uno r3 in order to sense methane gas natural gas. Technical data mq6 gas sensor features high sensitivity to lpg, isobutane, propane small sensitivity to alcohol, smoke. Methane natural gas sensor module nightshade electronics. Mq4 gas sensor monitor natural gas methane leakage with. The mq4 is connected to an adc121c 12bit analog to digital converter, which is capable expanding to 9 gas sensors per i2c port using just two address jumpers making full use of the floating address system. This sensor has a high sensitivity and fast response time. Structure and configuration of mq4 gas sensor is shown as fig. It needs a bit of time to warm up in order to work correctly. Mq4 gas sensor modules are used in gas leakage detecting equipments in family and industry, are suitable for detecting of ch4,natural gas. The mq 4 methane sensor has a sensor layer made of tin dioxide sno2, an, sensor to your design.
Mq5 gas sensor user manual waveshare 1 mq5 gas sensor user manual 1. The mq4 is used in gas leakage detecting equipment in consumer and industry markets,this sensor is suitable for detecting ch4,natural gas, lng, avoid exposure to alcohol, cooking fumes, and cigarette smoke. Mq4 gas sensor methane natural gas monitor with mq3 mq4. May 03, 2018 please use simple electrocircuit, convert change of conductivity to correspond output signal of gas concentration. Ita s suitable for designing gas leakage equipment. Mq4 gas sensor methane natural gas monitor with mq3. To accomplish that, i wanted a methane gas, simple to use, and also compatible with arduino platform. The sensor could be used to detect different combustible gas especially methane, it is with low cost and suitable for different application. Mq4 methane natural gas sensor adc121c 12bit adc i2c mini.
The heater provides necessary work conditions for work of sensitive components. Structure and configuration of mq4 gas sensor is shown in above figure configuration a or b, sensor composed by micro al 2 o 3 ceramic tube, tin dioxide sno 2 sensitive layer, measuring electrode and heater are fixed into a crust made by plastic and stainless steel net. Refer to datasheet for more info, or check this tutorial make sure. Sainsmart mq4 methane gas sensor natural coal co detector. This is a simpletouse compressed natural gas cng sensor, suitable for sensing natural gas composed of mostly methane ch4 concentrations in the air. Mq2 ch4 methane gas sensor manufacturers datasheet, including full specifications, 60500008mq2datasheet.
Pdf pervasive monitoring of carbon monoxide and methane. Mq2 ch4 methane gas sensor manufacturers datasheet, including full specifications, 60500008mq2 datasheet. The heater provides necessary work conditions for work of parts materials. Mq4 methane gas sensor module makerlab electronics. Stable and long life simple drive circuit application they are used in gas leakage detecting equipments in family and industry, are suitable for detecting of lpg, isobutane, propane, lng, avoid the. When the target combustible gas exist, the sensor s conductivity is more higher along with the gas concentration rising. Arduino mq4 gas sensor esp8266 arduino module tutorial. Features sensitive gas liquefied gas, natural gas and coal gas boost converter chip pt1 operating voltage 2. Please use simple electrocircuit, convert change of conductivity to correspond output signal of gas concentration. When the target combustible gas exist, the sensors conductivity is more higher along with the gas concentration rising. The mq4 natural gas sensor uses tin oxide to sense the presence of combustible gasses including propane, butane and especially methane. It can detect h2, lpg, ch4, co, alcohol, smoke, propane. High sensitivity to ch4,natural gas small sensitivity to alcohol, smoke fast response stable and long life.
1411 880 1027 1345 265 1334 1387 969 342 972 900 697 1399 969 770 555 350 802 796 581 1259 150 538 269 1292 1238 338 266 228 923 424 353 21