605-00008 Parallax Inc, 605-00008 Datasheet
605-00008
Manufacturer Part Number
605-00008
Description
Flow Sensors CH4 Gas Sensor
Manufacturer
Parallax Inc
Datasheet
1.605-00008.pdf
(2 pages)
Specifications of 605-00008
Supply Voltage
5 V
Lead Free Status / RoHS Status
Lead free / RoHS Compliant
HANWEI ELETRONICS CO.,LTD
micro AL
TECHNICAL DATA
TEL: 86-371- 67169070 67169080
of LPG, i-butane, propane, methane ,alcohol, Hydrogen, smoke.
1
2
3
4
5
6
7
8
9
Configuration A
FEATURES
APPLICATION
SPECIFICATIONS
Symbol
Symbol
Symbol
Rs
(3000/1000)
Standard
Detecting
Condition
Preheat time
Structure and configuration of MQ-2 gas sensor is shown as Fig. 1
isobutane
Vc
V
R
R
P
Tao
Tas
R
O
Gas sensing
Electrode
Electrode line
Heater coil
Tubular ceramic
Anti-explosion
network
Clamp ring
Resin base
Tube Pin
H
L
H
H
H
2
α
layer
C. Sensitivity characteristic
D. Structure and configuration, basic measuring circuit
Parts
2
Wide detecting scope
Stable and long life
They are used in gas leakage detecting equipments in family and industry, are suitable for detecting
A. Standard work condition
O
B. Environment condition
3
ceramic tube, Tin Dioxide (SnO
Parameter name
Circuit voltage
Heating voltage
Load resistance
Heater resistance
Heating consumption
Parameter name
Using Tem
Storage Tem
Related humidity
Oxygen concentration
Parameter name
Sensing
Resistance
Concentration
Materials
SnO
Au
Pt
Ni-Cr alloy
Al
Stainless steel gauze
(SUS316 100-mesh)
Copper plating Ni
Bakelite
Copper plating Ni
Slope rate
2
O
2
3
Humidity: 65%±5%
Temp: 20℃±2℃
FAX: 86-371-67169090
A向
Over 24 hour
Technical parameter
(1000ppm iso-butane )
2
Fast response and High sensitivity
) sensitive layer, measuring electrode and heater are fixed into a
Simple drive circuit
Fig. 1
Vh: 5V±0.1
Vc:5V±0.1
3KΩ-30KΩ
Technical condition
-20℃-50℃
-20℃-70℃
less than 95%Rh
21%(standard condition)Oxygen
concentration can affect sensitivity
Technical condition
5V±0.1
5V±0.1
can adjust
33Ω±5%
less than 800mw
≤0.6
MQ-2
Configuration B
MQ-2
(Configuration A or B),
http://www.hwsensor.com
GAS SENSOR
Remarks
minimum value is
over 2%
Remarks
Detecting concentration
scope：
200ppm-5000ppm
LPG and propane
300ppm-5000ppm
5000ppm-20000ppm
300ppm-5000ppm H
100ppm-2000ppm
Remarks
AC OR DC
ACOR DC
Room Tem
butane
methane
Alcohol
Fig.2
E-mail: sales@hwsensor.com
sensor composed by
A向
2
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605-00008 Summary of contents
Page 1
HANWEI ELETRONICS CO.,LTD TECHNICAL DATA FEATURES Wide detecting scope Stable and long life APPLICATION They are used in gas leakage detecting equipments in family and industry, are suitable for detecting of LPG, i-butane, propane, methane ,alcohol, Hydrogen, smoke. SPECIFICATIONS A. ...
Page 2
HANWEI ELETRONICS CO.,LTD crust made by plastic and stainless steel net. The heater provides necessary work conditions for work of sensitive components. The enveloped MQ-2 have 6 pin ,4 of them are used to fetch signals, and other 2 are ...