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PDF MQ-136 Data sheet ( Hoja de datos )
| Número de pieza | MQ-136 | |
| Descripción | GAS SENSOR | |
| Fabricantes | HANWEI ELECTRONICS | |
| Logotipo |  |
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HANWEI ELECTRONICS CO.,LTD
TECHNICAL DATA
MQ-136
http://www.hwsensor.com
MQ-136 GAS SENSOR
FEATURES
Fast response and High sensitivity
Stable and long life
Simple drive circuit
APPLICATION
They are used in air quality control equipments for buildings/offices, are suitable for detecting of H2S.
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
O2 Oxygen concentration
C. Sensitivity characteristic
Symbol
Parameter name
Rs Sensing
Resistance
Technical condition
5V±0.1
5V±0.1
can adjust
31 5%
less than 800mw
Technical condition
-10 -45
-20 -70
less than 95%Rh
21%(standard condition)Oxygen
concentration can affect sensitivity
Technical parameter
30K -200K
(10ppm H2S )
Concent rat ion
(20/5)
Slope rate
0.65
H2S
Standard
Detecting
Condition
Temp: 20 2
Vc:5V±0.1
Humidity: 65%±5% Vh: 5V±0.1
Preheat time
Over 24 hour
D. Structure and configuration, basic measuring circuit
Remarks
AC OR DC
ACOR DC
Room Tem
Remarks
minimum value is
over 2%
Ramark 2
Detecting concentration
scope
1-100ppm H2S
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
Configuration A
Fig. 1
Configuration B
Fig.2
Structure and configuration of MQ-136 gas sensor is show n as Fig. 1 (Configuration A or B), sensor composed
by micro AL2O3 ceramic tube, Tin Dioxide (SnO2) sensitive layer, measuring electrode and heater are fixed into a
crust made by plastic and stainless steel net. The heater provides necessary work conditions for work of
TEL: 86-371-5333098 5333099
FAX: 86-371-5333090
E-mail: [email protected]
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