MP503 Air-Quality Gas Sensor
MP135/MP503 air quality gas sensor
MP135/MP503 air quality gas sensor using multilayer thick film manufacturing process, in the micro AI203 ceramic substrate on both sides of the heater and metal oxide semiconductor gas sensing layer, encapsulated in the metal shell. The conductivity of the sensor changes when there is a detected gas in the ambient air. The higher the concentration of the gas, the higher the conductivity of the sensor. This conductivity change can be converted into an output signal corresponding to the gas concentration by a simple circuit.
This product is sensitive to alcohol, smoke, isobutane, formaldehyde; It has the advantages of fast response recovery, low power consumption, simple detection circuit, good stability, long life, etc.
Scope of application:
Used for home environment and office harmful gas detection, automatic exhaust device, air freshener, etc.
| Model | MP503 | ||
| Sensor Type | Semiconductor flat surfaced sensor | ||
| Standard Encapsulation | Metal Cap | ||
| Detection Gas | Alcohol, Smoke | ||
| Detection range | 10~1000ppm(Alcohol) | ||
| Standard circuit | Loop voltage | VC | ≤24V DC |
| Heating voltage | VH | 5.0V±0.1V AC or DC | |
| Load resistance | RL | Adjustable | |
| sensor features in standard test condition | Heating resistance | RH | 95Ω±10Ω(Room Tem.) |
| Heating consumption | PH | ≤300mW | |
| Surface resistance | RS | 1KΩ~30KΩ(in 50ppm Alcohol) | |
| Sensitivity | S | Rs(in air)/Rs(in 50ppm Alcohol)≥5 | |
| Concentration slope | α | ≤0.6(R100ppm/R30ppm alcohol) | |
| Standard condition of test | Temperature, humidity | 20?±2?;65%±5%RH | |
| Standard test circuit | VC:5.0V±0.1V; VH :5.0V±0.1V | ||
| Warm-up time | More than 48 hours | ||
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