Tin Dioxide Semiconductor Gas Sensor for Refrigerant Detection(HCFCs) - SP-41-00
• Target gas: HCFCs (R-22)
• Heater voltage: 5.0 V ± 4%
• Circuit voltage: 5.0 V ± 4%
• Operating temperature: -10°C to 60°C
• Storage temperature: -20°C to 70°C
• Relative humidity: Less than 95% RH
• Sensor resistance: 1 kΩ to 10 kΩ
• Industrial gas leak detector
- Model Number: SP-41-00
- Data Sheet:
- Quantity:
- - +
Product Specification
SP-41-00 Gas Sensor for Refrigerant Detection Description
The SP-41 is a tin dioxide semiconductor gas sensor which has a high sensitivity to HCFCs (e.g. Freon: R-22) with reduced sensitivity to other gases such as alcohol.
SP-41-00 Gas Sensor for Refrigerant Detection Application
• Industrial gas leak detector
SP-41-00 Gas Sensor for Refrigerant Detection 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
40 Ω ± 2 Ω
at room temperature
PH
Heater power consumption
400 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.
Sensitivity characteristics
Model
SP-41-00
Symbol
Parameter
Specification
Conditions etc.
RS
Sensor resistance
1 kΩ to 10 kΩ
At 1000 ppm of R-22/air
β
Ratio of sensor resistance
0.25 to 0.55
Rs at 3000 ppm of R-22
Rs at 1000 ppm of R-22
Standard Test Conditions:
Temp: 20°C ± 2°C
Humidity:65% ± 5%
(in clean air)
Pre-heating time: more than 96 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
Acceleration:
Number of impacts:
100 G
5 times
If you cannot find what you want, you can entrust ISweek to source for you. Just click:
Sourcing Service
