MP-4 C3H8 Sensor Propane Gas Sensor/Flammable LPG gas Sensor
Principle Introduction:
MP-4 gas sensor is for flammable gases.As LPG gas sensor,It adopts multilayer thick film manufacturing 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. Conductivity of the sensor is affected by the concentration of target gas. The higher the concentration is,the higher conductivity of sensor gets. Users can adopt simple circuit to convert variation of conductivity into output signal corresponding to gas concentration.
Applications :
It, LPG gas sensors, is widely used in domestic gas leakage alarm, industrial flammable gas alarm and portable gas detector.
Technical parameters :
| Model | MP-4 | ||
| Sensor Type | Semiconductor flat surfaced sensor | ||
| Standard Encapsulation | Metal cap | ||
| Target Gas | LPG/ C3H8, Propane | ||
| Detection range | 300-10000ppm LPG | ||
| Standard Circuit Conditions | Loop Voltage | Vc | ≤24V DC |
| Heater Voltage | VH | 5V±0.1V AC or DC | |
| Load Resistance | RL | Adjustable | |
| Sensor character under standard test conditions | Heater Resistance | RH | 85Ω±15Ω (room tem.) |
| Heater consumption | PH | ≤300mW | |
| Sensitivity | S | Ro(in air)/Rs(2000ppm C3H8)≥5 | |
| Sensitiveresistance | RS | 1KΩ～20KΩ (in 2000ppm C3H8) | |
| Concentration Slope | α | ≤0.6(R2000ppm/R500ppmC3H8) | |
| Standard test conditions | Tem. Humidity | 20℃±2℃；65%±5%RH | |
| Standard test circuit | Vc::5V±0.1V VH: 5V±0.1V | ||
| Preheat time | Over 48 hours | ||
