Profile
MP-5 gas sensor is for flammable gases. 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.
Advantage
* Lower consumption
* Small size
* Fast response and resume
* Highest sensitivity
* Excellent stability and long life
* Easy circuit and big signal output
* Excellent selectivity
Applications
It is widely used in domestic gas leakage alarm, industrial flammable gas alarm and portable gas detector.
Main Parameters
Model
MP-5
Sensor Type
Flat surfaced semiconductor sensor
Standard Encapsulation
Metal cap
Target Gas
LPG
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 temp.)
Heater consumption
PH
≤300mW
Sensitivity
S
Ro(in air)/Rs(2000ppm C3H8)≥5
Sensitive resistance
RS
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
Not less than 48 hours
O2 content
21%（not less than 18%）
O2 concentration effects initial value, sensitivity and repeatability.
Lifespan
10 years
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