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Product Details:
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| Operating Voltage: | 4.5~5.5V DC | Output Mode UART: | 0.4V To 2V |
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| Interface Level: | 5V | Measurement Range: | 0~100%vol |
| Highlight: | Fire Detection Infrared Methane Sensor,CH4 Sensor Infrared Methane Sensor,CH4 Infrared Methane Sensor |
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Product Description:
MH-742B Infrared Methane Sensor CH4 Sensor For Fire Detection Explosive Gas Detection
Features:
MH-742B sensor is a general-purpose intelligent sensor, using non-dispersive infrared (NDIR) principle to detect hydrocarbon gases in the air, with good selectivity, no oxygen dependence, stable performance and long life. Built-in temperature sensor for temperature compensation. MH-742B is a compact infrared gas sensor with excellent performance, which combines mature infrared absorption gas detection technology with micro-machining and excellent circuit design. Can be widely used in fire detection, explosive gas detection and so on.
Meet the requirements of the People's Republic of China safety production industry standard AQ6211-2008 "Non-dispersive infrared methane Sensor for Coal Mines" issued by the State Administration of Work Safety on November 19, 2008 and implemented on January 1, 2009.
The design, manufacture and verification of this product follow the following national standards:
GB3836.1-2000 "Electrical equipment for explosive gas atmospheres - Part 1: General requirements"
GB3836.9-2000 "Electrical equipment for explosive gas atmospheres - Part 9: Encapsulation type" m"
GB4208-93 "Shell Protection Level (IP code)"
GB/T13384-92 "Mechanical and Electrical products packaging application technical conditions"
Second, MH-742B infrared methane sensor (CH4 sensor) characteristics
High sensitivity, high resolution;
5V power supply, low power consumption;
Provide UART and 0.4V~2V analog voltage signal output mode;
Fast response recovery features;
Temperature compensation, excellent linear output;
Excellent stability;
Long service life;
Not poisoned;
Resistance to water vapor interference;
Third, MH-742B infrared methane sensor (CH4 sensor) main applications
Widely used in fire detection, explosive gas detection and so on
Fourth, MH-742B infrared methane sensor (CH4 sensor) technical indicators
Operating voltage 4.5~5.5V DC
Output mode UART 0.4V to 2V
Interface level 5V
Measurement range 0~100%vol range (see Table 2)
Preheating time 90s
Response time T90<30s
Repeatability zero < ±10ppm
SPAN <± 30ppm
Long-term drift zero < ±30ppm/ month
SPAN < ± 30ppm/ month
Temperature range -40°C to 70°C
Humidity range 0 to 95%RH
Life span >5 years
Specifications:
| Operating temperature | -20℃ ~ 60℃ |
| Preheating time | 90s |
| Response time | < 30 s |
| Long-term drift zero | < ±30ppm/ month |
Contact Person: Miss. Xu
Tel: 86+13352990255
