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Company Info
Shenzhen Isweek Ltd Shenzhen Isweek Ltd

Street Address: 16 Floor, Building #3, Zhongke Mansion, Gaoxin South 1st Rd, Hi-Tech Park, Nanshan

City: Shenzhen

Province: Guangdong

Country/Region: China

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Tin Dioxide Semiconductor Gas Sensor For Methane Detection

Tin Dioxide Semiconductor Gas Sensor For Methane Detection

Application:  \

Market Type:  After Market

Product Attribute:

Applicationt: 

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Production Description:

SP-12A-00 Methane Sensor CH4 Sensor Description
The SP-12A is a tin dioxide semiconductor gas sensor which has a good sensitivity and excellent selectivity to methane. The SP-12A has also a significant feature in good stability after exposure to silicone compounds.

Using the SP-12A, the most reliable methane detection can be achieved.

SP-12A-00 Methane Sensor CH4 Sensor Application
Home gas leak detector

SP-12A-00 Methane Sensor CH4 Sensor Specifications

Standard Operating conditions
Symbol Parameter Specification Conditions etc.
VH Heater voltage 5.0 V ± 4% AC or DC
VC Circuit voltage 5.0 V ± 4% AC or DC
RL Load resistance Variable PS < 15 mW
RH Heater resistance 42 ± 2 at room temperature
PH Heater power consumption 380 mW (Typical value) PH = VH2 / RH
PS Power dissipation of
sensing element		 Less than 15 mW PS =(VC - VRL)2/RS
Environmental conditions
Symbol Parameter Specification Conditions etc.
Tao Operating temperature -10°C to 60°C Recommended range
Tas Storage temperature -20°C to 70°C
RH Relative humidity Less than 95% RH
(O2) Oxygen concentration 21% ± 1%
(Standard condition)		 Absolute minimum level:
more than 18%
The sensitivity characteristics are influenced by the
variation in oxygen concentration. Please consult FIS
for details.
Sensitivity characteristics
Model SP-12A-00
Symbol Parameter Specification Conditions etc.
RS Sensor resistance 4 k to 15 k at 5000ppm of methane/air
  Sensitivity slope 0.60 to 0.75 RS at CH4 7000 ppm
RS at CH4 3000 ppm
Standard Test Conditions: Temp: 20°C ± 2°C
Humidity: 65% ± 5%
(in clean air) 		 VC : 5.0 V ± 1%  
VH : 5.0 V ± 1%  
RL : 10 k ± 5%
Pre-heating time: more than 48 hours
Mechanical characteristics
Items Conditions Specifications
Vibration Frequency:
Vertical amplitude:
Duration:		 100 cpm
4 mm
1 hour		 Should satisfy the
specifications shown in the
sensitivity characteristics.
Shock Height:
Number of impacts:		 100 G
5 times

Tin Dioxide Semiconductor Gas Sensor For Methane Detection
 

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