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O2-G2

Product catalog summary

Overview: The O2-G2 Oxygen Sensor is a miniature-sized sensor designed for measuring oxygen levels. This document provides technical specifications, performance data, and environmental considerations for the sensor.

Key Specifications:

Output: 30 to 42 µA at 22°C, 20.9% O2.
Response Time: Less than 20 seconds from 20.9% to 0% O2.
Zero Current: Less than 2.5 µA at 99.99% N2, 22°C.
Output Drift: Less than 2% change in output over 3 months.
Operating Life: More than 24 months until 85% of original output in 20.9% O2.
Temperature Range: -30 to 55°C.
Pressure Range: 80 to 120 kPa.
Humidity Range: 5 to 95% relative humidity, non-condensing.
Storage Period: 6 months at 3 to 20°C in a sealed pot.
Load Resistor: Recommended 47 to 100 Ω.
Weight: Less than 7 grams.

Performance:

Humidity Sensitivity: Less than 0.7% O2 change from 0% to 95% relative humidity at 40°C.
Pressure Sensitivity: Less than 0.1% change of output per 20 kPa change in pressure.
CO2 Sensitivity: Less than 0.1% change in output per 5% CO2.
Temperature Dependence: Output varies from 87 to 93% at -20°C and 103 to 107% at +50°C compared to output at 20°C in 20.9% O2.

Environmental Considerations: The sensor is tested under ambient conditions with a 47-ohm load resistor. Users should verify suitability under their specific conditions. Disposal should follow manufacturer instructions to avoid environmental harm.

Figures and Graphs:

Figure 1: Schematic Diagram of the O2-G2 Sensor.
Figure 2: Temperature Dependence in Air - Shows variation in sensitivity with temperature changes.
Figure 3: Pressure Step Performance - Illustrates transient response to pressure changes.
Figure 4: Linearity - Demonstrates non-linear current response with increasing oxygen concentration, which can be corrected in software.

Disclaimer: Alphasense Ltd reserves the right to change specifications without notice. The information is provided without legal responsibility, and users should test the sensor under their own conditions.

Catalog excerpts

O2-G2 Oxygen Sensor Oxyg Technical specifications Version 1.0 Miniatur Size ture Miniature Size O2-G2 Oxygen Sensor – Miniature size Figure 1 O2-G2 Schematic Diagram Bottom View Side View Bottom View Side View PERFORMANCE Output Response time Zero current Output Performance Output drift Output Operating lifedrift % change in output @ 3 months % months until change original output in 20.9% O2 85% in output @ 3 months Humidity sensitivity Pressure sensitivity Humidity Sensitivity CO2 sensitivity % O2 change: 0% to 95% rh @ 40°C (% 0% to output)/(% @ 40°C % O2 change:change of 95% rh change of pressure) @ 20kPa % (change in output)/% CO2 @ 5% CO2 (% change of output)/(% change of pressure) @ 20kPa % output/output at 20°C in 20.9% O2 % change in output/output at 20°C @ 5%OCO2 output / % CO2 in 20.9% % 2 Operating life ENVIRONMENTAL Environmental Pressure sensitivity Output at -20°C CO2 sensitivity +50°C Output at Output at -20oC Output at +50oC Temperature range Pressure range Humidity range Storage period SPECIFICATIONS Load resistor Temperature range Weight Response time Zero current Months until 85% original output in 20.9% O2 °C kPa % rh non-condensing (0 to 99% rh short term) Months @ 3 to 20°C (store in sealed pot) � (recommended) g °C 55 Pressure range kPa 80 to 120 Humidity range % rh non-condensing (0 to 99% rh short term) 5 to 95 Storage period months @ 3 to 20°C (store in sealed pot) 6 (recommended) 47 to 100 Ω Load resistor For further information on the performance of this sensor, on other sensors in the range or any other< 7 E: [email protected] W: www.alphasense.com Weight g subject, please contact Alphasense Ltd. or visit our website

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Perf erformance Data O2-G2 Performance Data Figure 1 Temperature Dependence in Air Figure 2 Temperature Dependence in Air Perf erformance Data O2-G2 Performance Data 110 Output Output at 20oC (%) at 20oC (%) Output at 20oC (%) Perf erformance Data O2-G2 Performance Data Figure 2 Temperature Dependence in Air This graph shows the variation in sensitivity caused by changes in temperature. All capillary oxygen sensors willThis graph shows the variation in sensitivity caused by show some variation in This graph shows the signal with changes output in temperature. 95 variation in sensitivity caused...

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O2-G2

O2-G2

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