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Tin Dioxide Semiconductor Gas Sensor for Ammonia Detection
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Price
Price on request ≥1piece
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Model Number
SP-53A-00 -
Data Sheet
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Package
Original packaging -
Specs
SP-53A-00 -
Quantity
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Product Description
SP-53A-00 Ammonia Sensor NH3 Sensor Description
The SP-53A is a tin dioxide semiconductor gas sensor which has a good sensitivity to high concentration ranges of ammonia with improved response speed compared with conventional models.
SP-53A-00 Ammonia Sensor NH3 Sensor Application
• Industrial gas leak detector
SP-53A-00 Ammonia Sensor NH3 Sensor Specifications
The SP-53A is a tin dioxide semiconductor gas sensor which has a good sensitivity to high concentration ranges of ammonia with improved response speed compared with conventional models.
SP-53A-00 Ammonia Sensor NH3 Sensor Application
• Industrial gas leak detector
SP-53A-00 Ammonia Sensor NH3 Sensor Specifications
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Standard Operating conditions |
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Symbol |
Parameter |
Specification |
Conditions etc. |
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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 Ω ± 2 Ω |
at room temperature |
| PH |
Heater power consumption |
380 mW (Typical value) |
PH = VH2 / RH |
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PS |
Power dissipation of sensing element |
Less than 15 mW |
PS =(VC - VRL)2/RS |
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Environmental conditions |
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Symbol |
Parameter |
Specification |
Conditions etc. |
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Tao |
Operating temperature |
-10°C to 60°C |
Recommended range |
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Tas |
Storage temperature |
-20°C to 70°C |
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RH |
Relative humidity |
Less than 95% RH |
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(O2) |
Oxygen concentration |
21% ± 1% (Standard condition) |
Absolute minimum level: more than 18% |
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The sensitivity characteristics are influenced by the variation in oxygen concentration. |
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Sensitivity characteristics |
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Model |
SP-53A-00 |
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Symbol |
Parameter |
Specification |
Conditions etc. |
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RS |
Sensor resistance |
9kΩ to 90 kΩ |
At 600 ppm of ammonia/air |
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β |
Ratio of sensor resistance |
0.15 to 0.35 |
Rs at 600 ppm of ammonia Rs at 200 ppm of ammonia |
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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 kΩ ± 5%
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Pre-heating time: more than 48 hours |
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Mechanical characteristics |
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Items |
Conditions |
Specifications |
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Vibration |
Frequency: Vertical amplitude: Duration: |
100 cpm 4 mm 1 hour |
Should satisfy the specifications shown in the sensitivity characteristics. |
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Shock |
Acceleration: Number of impacts: |
100 G 5 times |
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