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Shenzhen, Guangdong, China
- Main products: Gas Sensor, UV Sensor, Humidity Sensor, Pressure Sensor, Ultrasonic Sensor, Wind Speed sensor, Liquid Level Sensor
Home > Products > Gas sensor > O2-A3 Oxygen Sensor (O2 Sensor)
O2-A3 Oxygen Sensor (O2 Sensor)
US$ 30 - 40
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Product Details
| Brand Name | Alphasense | Place of Origin | United Kingdom | |
| Model Number | O2-A3 | Usage | Gas Sensor | |
| Theory | Other, Electrochemical Gas Sensor | Output | Analog Sensor |
Product Description
O2-A3 Oxygen Sensor O2 Sensor Description
Alphasense Oxygen sensors use capillary flow control.
Unlike partial pressure oxygen sensors, they have good pressure and temperature dependence, making them the best choice in safety applications.
Standard galavanic sensors use lead for greatest reliability but fixed lifetime.
O2-A3 Oxygen Sensorsize:
20mm diameter, the industry standard size for portable gas detectors
O2-A3 Oxygen Sensor O2 Sensor Schematic Diagram
| O2-A3 Oxygen Sensor O2 Sensor PERFORMANCE | ||
| Output | μA @ 22℃, 20.9% O2 | 60 to 85 |
| Response time | t90 (s) from 20.9% to 0% O2 (47W load resistor) | <15 |
| Zero current | μA @ 99.99% N2, 22℃ | <2.5 |
| O2-A3 Oxygen Sensor O2 Sensor LIFETIME | ||
| Output drift | % change in output @ 3 months | <2 |
| Operating life | months until 85% original output in 20.9% O2 | > 36 |
| O2-A3 Oxygen Sensor O2 Sensor ENVIRONMENTAL | ||
| Humidity sensitivity | % O2 change: 0% to 95% rh @ 40℃ | <0.7 |
| CO2 sensitivity | % change in output / % CO2 @ 5% CO2 | + 0.1 |
| Pressure sensitivity | (% change of output)/(% change of pressure) @ 20kPa | <0.1 |
| O2-A3 Oxygen Sensor O2 Sensor KEY SPECIFICATIONS | ||
| Temperature range | ℃ | -30 to 55 |
| Pressure range | kPa | 80 to 120 |
| Humidity range | % rh continuous (0 to 99% rh short term) | 5 to 95 |
| Storage period | months @ 3 to 20℃ (store in sealed container) | 6 |
| Load resistor | Ω (recommended) | 47 to 100 |
| Height | mm (including foam ring) | 17.4 |
| Weight | g | <16 |
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