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MQ-131 Datasheet PDF - ETC

Part Number MQ-131
Description GAS SENSOR
Manufacturers ETC 
Logo ETC Logo 

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TECHNICAL DATA
MQ-131 GAS SENSOR
FEATURES
Fast response and High sensitivity
Stable and long life
Simple drive circuit
Wide detecting range
APPLICATION
They are used in air quality control equipments for
buildings/offices, are suitable for detecting Of O3 .
SPECIFICATIONS
A. Standard work condition
Symbol
Parameter name
Vc Circuit voltage
VH Heating voltage
RL Load resistance
RH Heater resistance
PH Heating consumption
B. Environment condition
Symbol
Parameter name
Tao Using Tem
Tas Storage Tem
RH Related humidity
C. Sensitivity characteristic
Symbol
Parameter name
Rs Sensing
Resistance
Technical condition
5V±0.1
6V±0.1
Variable
31±5%
Less than 1100mw
Technical condition
-10 -50
-20 -70
Less than 95%RH
Technical parameter
100K-200K
(50ppb O3 )
α O3 Concentration
(100ppb/50ppb) Slope rate
0.65
Standard
Temp: 20 ±2 Vc:5V±0.1
Detecting
Humidity: 65%±5% Vh: 6V±0.1
Condition
Preheat time
Over 24 hour
D. Structure and configuration, basic measuring circuit
Remarks
AC or DC
AC or DC
Room Tem
Remarks
Remark 2
Detecting concentration
scope
10ppb-2ppm O3
Parts
1 Gas sensing
layer
2 Electrode
3 Electrode line
4 Heater coil
5 Tubular ceramic
6 Anti-explosion
network
7 Clamp ring
8 Resin base
9 Tube Pin
Materials
SnO2
Au
Pt
Ni-Cr alloy
Al2O3
Stainless steel gauze
(SUS316 100-mesh)
Copper plating Ni
Bakelite
Copper plating Ni
Fig. 1
AÏ ò
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