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PDF MQ131 Data sheet ( Hoja de datos )
| Número de pieza | MQ131 | |
| Descripción | Semiconductor Sensor for Ozone | |
| Fabricantes | Henan Hanwei | |
| Logotipo |  |
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Henan Hanwei Electronics Co., Ltd
www.hwsensor.com
MQ131 Semiconductor Sensor for Ozone
Sensitive material of MQ131 gas sensor is SnO2, which with lower conductivity in clean air. When
Ozone gas exists. The sensor’s conductivity is more higher along with the gas concentration rising.
Please use simple electrocircuit, Convert change of conductivity to correspond output signal of gas
concentration.
MQ131 gas sensor has high sensitity to Ozone, also sensitive to CL2, NO2, etc.
Character
* Good sensitivity to Ozone in wide range
* High sensitivity to Ozone
* Long life and low cost
* Simple drive circuit
Configuration
Application
* Domestic Ozone concentration overload Detector
* Industrial Ozone concentration overload Detector
* Portable Ozone concentration overload Detector
Technical Data
Basic test loop
Model No.
MQ131
Sensor Type
Semiconductor
Standard Encapsulation
Bakelite (Black Bakelite)
Detection Gas
Ozone
Concentration
10-1000ppm Ozone
Loop Voltage Vc
≤24V DC
Circuit
Heater Voltage
Load
Resistance
VH
RL
5.0V±0.2V AC or DC
Adjustable
Heater
Resistance
RH
31Ω±3Ω（Room Tem.）
Character
Heater
consumption
Sensing
Resistance
PH
Rs
≤900mW
50KΩ-500KΩ(in 50ppm O3)
Sensitivity
Slope
S Rs(in air)/Rs(in 50ppm O3)≥3
α (R /R50ppm 10ppm O3)
Tem. Humidity
20℃±2℃；65%±5%RH
Condition Standard test circuit
Vc:5.0V±0.1V；
VH: 5.0V±0.1V
Preheat time
Over 48 hours
Power of Sensitivity body(Ps): Ps=Vc2×Rs/(Rs+RL)2
Resistance of sensor(Rs): Rs=(Vc/VRL-1)×RL
Vc VRL
RL
VH
GND
The above is basic test circuit of the sensor.
The sensor need to be put 2 voltage,
heater voltage（VH）and test voltage（VC）.
VH used to supply certified working
temperature to the sensor, while VC used
to detect voltage (VRL) on load resistance
（RL）whom is in series with sensor. The
sensor has light polarity, Vc need DC
power. VC and VH could use same power
circuit with precondition to assure
performance of sensor. In order to make
the sensor with better performance,
suitable RL value is needed:
Tel: 86-371-67169070/80
Fax: 86-371-67169090
Email: [email protected]
Free Datasheet http://www.datasheet4u.com/
1 page | ||
| Páginas | Total 3 Páginas | |
| PDF Descargar | [ Datasheet MQ131.PDF ] | |
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