ShenzhenYijiajie Electronic Co., Ltd.
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Product Description:
YJJ MPn-4C Combustible Gas Sensor Is Used As A Gas Leakage Detector In Various Places
Features:
MPn-4C is manufactured using a multi-layer thick-film manufacturing process. It integrates heating electrodes, measurement electrodes, and a metal oxide semiconductor gas-sensitive layer on an Al2O3 ceramic substrate, and encapsulates it in a metal housing. When there is a detected gas in the ambient air, the conductivity of the sensor will change. The higher the concentration of the gas, the higher the conductivity of the sensor. A simple circuit can convert this change in conductivity into an output signal corresponding to the gas concentration. This product has excellent anti-interference ability for common gases such as alcohol and acetic acid in the usage scenarios, such as gas leak monitoring devices for homes, factories, and commercial use, fire prevention/safety detection systems; gas leak alarms, gas leak detectors, etc.
Product Model: MPn-4C
Product Type: Planar Semiconductor Sensor
Standard Packaging: Metal Packaging
Detected Gases: Methane, Natural Gas, Biogas
Detection Concentration: 300 - 10,000 ppm (for Methane, Natural Gas)
Standard Circuit Conditions: Loop Voltage VC ≤ 24V DC
Heating Voltage VH 5.0V ± 0.1V AC or DC
Load Resistance RL Adjustable
Characteristics of the Gas Sensing Element under Standard Test Conditions Heating Power PH ≤ 350mW
Sensitive Body Resistance RS 1KΩ - 20KΩ (at 4000ppm Methane)
Sensitivity S Rs (in air) / Rs (in 4000ppm Methane) ≥ 5
Concentration Slope α ≤ 0.6 (R4000ppm / R1000ppm Methane)
Standard Test Conditions Temperature, Humidity 20℃ ± 2℃; 55%±5%RH
Standard test circuit VC: 5.0V ± 0.1V; VH: 5.0V ± 0.1V
Preheating time Not less than 48 hours
Oxygen concentration 21% (not less than 18%, (The oxygen concentration will affect the initial value, sensitivity and repeatability of the sensor. Please consult for use when operating at low oxygen concentrations))
Service life 10 years
Specifications:
| Preheating Time | 30 s |
| Response Time | T90 < 30 s |
| Operating Temperature | -40 - 70 ℃ |
| Operating Humidity | 0 - 95% RH |
