Combustible sensor DIP-6 MQ-4 methane gas | ABS Sensor



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Combustible sensor DIP-6 MQ-4 methane gas | ABS Sensor

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Описание товара

Combustible sensor DIP-6 MQ-4 methane gas | ABS SensorCombustible sensor DIP-6 MQ-4 methane gas | ABS Sensor


Brand NameNoneSensitivity.Resolution.Measuring Range.Linear.Hysteresis.Repeatability.Sensor TypePhotoelectricMeasurement unitpiece/piecesEach pack303 903,15 ₽-22%3 903,15 ₽-22%3 044,53 ₽3 044,53 ₽loader

Description

Semiconductor gas sensing element for MQ-4 natural gas detectionThe gas sensing material used in the MQ-4 gas sensor is two tin oxide (SnO2), which has a lower conductivity in clean air. The electrical conductivity of the sensor increases with the increase of the concentration of combustible gas in the air when the sensor is in the presence of combustible gas. A simple circuit is used to convert the change of electrical conductivity to the output signal corresponding to the gas concentration.The sensitivity of MQ-4 gas sensor to methane is high, and it has a better sensitivity for propane and. This sensor can detect a variety of combustible gases, especially natural gas, is a suitable for a wide range of applications of low-cost sensors.Characteristic* good sensitivity to combustible gas in a wide range of concentration.* the sensitivity of methane is higher.* long life, low cost* simple drive circuitapplication* household gas leak alarmCombustible gas alarm for industrial use* portable gas detectorProduct modelMQ-4product typeSemiconductor gas sensorStandard packageBakelite (Black Bakelite)Gas detectionNatural gas, methaneDetection concentration300-10000ppm (methane, natural gas)Standard circuit conditionsLoop voltageVcDC = 24VHeating voltageVH5.0V + ACorDC 0.2VLoad resistanceRLAdjustableCharacteristics of gas sensors under standard test conditionsHeating resistanceRH31 + 3 (Shi Wen)Heating power consumptionPHLess than 900mWSensitive surface resistanceRs2K -20K (in CH4) (5000ppm)sensitivitySRs (in air) /Rs (5000ppm methane) = 5Concentration slopeAlphaLess than 0.6 (R5000ppm/R3000ppmCH4)Standard test conditionsTemperature and humidity20 C + 2 C; 65% + 5%RHStandard test circuitVc:5.0V + 0.1V;5.0V VH: + 0.1VPreheating timeNot less than 48 hours


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