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NDIR Combustible Gas Sensor MH-742B
Summary:
MH-742B is a universal type intelligent sensor to detect combustible gas,taking advantage of non-dispersive infrared (NDIR) principle. With high selectivity, no oxygen dependence, high performance and long lifespan features, MH-742B also has built-in temperature compensation feature. MH-742B is a compact and high-performance sensor based on infrared absorption of gas detection technology, micro-machining and sophisticated circuit design.
Feature:
* High sensitivity, high resolution, low power consumption
* Output method: UART, analog voltage signal, etc.
* Quick response
* Temperature compensation, excellent linear output
* Excellent stability, Long lifespan
* Anti-poisons, anti-vapor interference
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APPLICATION
Industrial Combustible Gas Alarm
In the process of industrial use of combustible gas, if the combustible gas is in an incomplete combustion state or has gas leakage, etc., the combustible gas will cause personnel poisoning or fire accidents, directly threatening the life safety of personnel. Therefore, it is necessary to install an industrial-grade gas alarm. If the gas exceeds the standard in the on-site environment, the alarm can give an early warning, thereby reducing the probability of danger.
Urban underground pipe gallery is a municipal public facility that implements unified planning, design, construction and maintenance, and is built in the city underground for laying municipal public pipelines.During the construction of the urban underground comprehensive pipe gallery, the workers are actually working in a closed environment or a closed space.
The septic tank is a device for processing feces and filtering. The principle is that the solidified material is decomposed at the bottom of the pool, and the hydrated objects in the upper layer enter the pipeline and flow away, preventing the pipeline from clogging and providing solidified objects (feces and other garbage)with enough time to hydrolyze.
Industrial waste gas refers to the general term for various pollutant-containing gases discharged into the air generated during the fuel combustion and production process in the factory area of the enterprise. These gases enter the human body through the respiratory tract through different routes, some directly cause harm, and some have an accumulation effect, which will seriously endanger human health.
Petrochemical Industry Toxic Gas Monitoring
The energy provided by the petrochemical industry is mainly used as fuel for automobiles, tractors, airplanes, ships and boilers. At the same time, refinery enterprises provide various chemical raw materials for the chemical industry, and flammable gas also enters thousands of households.
Gas safety detection through the whole process of mine production, processing and transportation, such as the detection of mashgas(methane), carbon monoxide (CO), hydrogen sulfide (H2S), carbon dioxide (CO2), sulfur dioxide (SO2), oxygen (O2), etc.
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PARAMETER
Technical Data Sheet
| Product Model | MH-742B |
| Gas Detected | Combustible gas (see Table 2 for details) |
| Working Voltage | 4.5 V ~ 5.5V DC |
| Average Current | < 100mA |
| Interface Level | 3.3V |
| Measurement Range | 0~100%VOL optional (view table 2) |
| Output Signal | UART |
| 0.4-2V DC | |
| Warm-up Time | <2min |
| Response Time | T90 < 30s |
| Working Temperature | -40℃ ~ 70℃ |
| Working Humidity | 0 to 95%RH, non-condensing |
| Dimension | Φ39×44mm |
| Weight | 280g |
| Lifespan | >5 years |
| Protected Class | IP54 |
Free Guide! Learn the Parameter Differences of Similar Sensors
Wondering how to find the most suitable one for you out of so many sensors? Download our free guide to learn the comparison table of technical parameters.
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As a pioneer in gas sensor based solutions with the advanced processes, technologies and products, Winsen offers a wide range of gas sensors:
RELATED PRODUCTS
As a pioneer in gas sensor based solutions with the advanced processes, technologies and products, Winsen offers a wide range of gas sensors:
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How to choose the right sensor for your project?
We have 17 sensor series, 200+ categories, and 300+ detection objects for gas detection. Such as CO, CO2, VOC, PM2.5, CH4, LPG and so on. In particular, we also have MEMS sensors. According to your industry application, gas principle, power consumption, accuracy, and range requirements, and we can select a specific model for you. You can also use the product filter below to choose a suitable product, or choose online serivce.
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