MP-4 original manufacturer
Listed company in Shenzhen
Small size and competitive price
Better aseismatic than semiconductor
Overview
MP-4 flat surfaced sensor is used for flammable gas detection, which adopts advanced flat production technology. The heater and metal oxide semiconductor material on the ceramic substrate of subminiature Al2O3 are fetched out by electrode down-lead, encapsulated in metal socket and cap. When the target gas exists, the higher the concentration of target gas in the air, the higher conductivity of sensor is. Use simple electro circuit to convert the variation of conductivity to output signal corresponds to gas concentration.
Features Configuration
* High selectivity
* High sensitivity to Methane
* Small size
* 5V rated voltage, low consumption
* Fast response and resume
* Good stability and long life
* Simple drive circuit
Application
Widely used for household harmful gas detection and
automatic exhaust, living air device.
Performance parameters
Model | MP-4 | ||
Type | Semiconductor flat surfaced gas sensor | ||
Standard encapsulation | Metal | ||
Target gas | CH4, Natural gas | ||
Detection concentration | 300-10000ppm(CH4,Natural gas) | ||
Standard circuit | Loop voltage | Vc | ≤24V DC |
Heating voltage | VH | 5.0V±0.2V ACorDC | |
Load resistance | RL | Adjustable | |
Standard features of sensor | Heating resistance | RH | 80Ω±10ΩRoom Tem. |
Heating consumption | PH | ≤300mW | |
Surface resistance | Rs | 2KΩ-20KΩ(in 5000ppm CH4) | |
Sensitivity | S | Rs(in air)/Rs(5000ppmCH4)≥5 | |
Concentration slope | α | ≤0.6(R5000ppm/R3000ppm) | |
Standard condition of test | Temperature, humidity | 20±265%±5%RH | |
Standard testing circuit | Vc:5.0V±0.1V VH: 5.0V±0.1V | ||
Warm-up time | More than 48 hours | ||
