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Product details
product details
The MP501 air quality sensor adopts a multi-layer thick film manufacturing process, with heaters and metal oxide semiconductor gas sensing layers formed on both sides of a micro Al2O3 ceramic substrate, which are encapsulated in a metal shell. When there is a detected gas in the ambient air, the conductivity of the sensor changes. The higher the concentration of the gas, the higher the conductivity of the sensor. A simple circuit can be used to convert this change in conductivity into an output signal corresponding to the gas concentration.
Sensor characteristics
High sensitivity to alcohol and smoke; Fast response and recovery; Low power consumption; The driving circuit is simple; Good stability and long lifespan.
Main applications
Used for detecting harmful gases in home and office environments, automatic exhaust devices, air purifiers, etc.
TECHNICAL INDEX
| PRODUCT MODEL | MP501 | ||
| product type | Flat semiconductor gas sensor | ||
| Standard packaging | Metal encapsulation | ||
| Detect gas | Alcohol, smoke, etc | ||
| Detect concentration | 10～1000ppm | ||
| Standard circuit conditions | loop voltage | Vc | ≤24V DC |
| heating voltage | VH | 5.0V±0.1V AC or DC | |
| load resistance | RL | adjustable | |
| Component characteristics under standard testing conditions | heating resistor | RH | 95 Ω± 10 Ω (room temperature) |
| Heating power consumption | PH | ≤300mW | |
| sensitivity | S | Rs (in air)/Rs (in 50ppm alcohol) ≥ 5 | |
| Surface resistance of sensitive body | S | 1K Ω~30K Ω (in 50ppm alcohol) | |
| Concentration slope | α | ≤ 0.6 (R100ppm/R30ppm alcohol) | |
| Standard testing conditions | Temperature and humidity | 20℃±2℃； 65%±5%RH | |
| Standard Test Circuit | VC:5.0V±0.1V； VH :5.0V±0.1V | ||
| Warm-up time | Not less than 48 hours | ||
Note: Product parameters are subject to change without prior notice
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