UK Alphasense Long Life Oxygen Sensor (O2 Sensor) O2-A3
UK Alphasense Long Life Oxygen Sensor (O2 Sensor)
UK Alphasense Long Life Oxygen Sensor (O2 Sensor)

UK Alphasense Long Life Oxygen Sensor (O2 Sensor) - O2-A3

- 3-year warranty
- High-performance leak-free O2 sensor
- Output change less than 2% within 3 months
- T90 less than 15 seconds
- <0.7% humidity effect
- <0.1% CO2 sensitivity
- Up to 99% humidity resistance

Product Model: O2-A3

Product Introduction

I.Long Life Oxygen Sensor(O2 Sensor) O2-A3 Product Description:

The oxygen sensor (O2-A3) product advantages lie in long life, up to 4 years; good stability, no drift; typical applications include oxygen alarms and oxygen analyzers.


II. Long Life Oxygen Sensor (O2 Sensor) O2-A3 Features:

- 3-year warranty
- High-performance leak-free O2 sensor
- Output change less than 2% within 3 months
- T90 less than 15 seconds
- <0.7% humidity effect
- <0.1% CO2 sensitivity
- Up to 99% humidity resistance


III. Long Life Oxygen Sensor (O2 Sensor) O2-A3 Main Specifications:
(1) Oxygen concentration measurement range (%): 0-30
(2) Operating life: > 36 months to reach 85% of initial signal
(3) Dimensions (mm): Φ20.3×16.8mm
(4) Output: 65 - 85 μA @ 22°C, 20.9% O2
(5) Response time t90 (seconds): < 15 from 20.9% to 0 (load 47Ω)
(6) Weight: < 16g
(7) Temperature range: -30 - 55℃
(8) Pressure range: 80 - 120Kpa
(9) Humidity range: 5 - 95%RH
(10) Storage time: 6 months (storage temperature 3 - 20℃)
(11) Load resistance: 47 - 100 ohms

IV. Long Life Oxygen Sensor (O2 Sensor) O2-A3 Typical Applications:
Oxygen alarms, atmosphere analyzers


V. Long Life Oxygen Sensor (O2 Sensor) O2-A3 Performance:

Output μA@20.9%O2,22℃ 55~85
Response Time t90 from 20.9% to 0% O2 (s) (47Ω load) <15
Zero Current μA @ 99.99% nitrogen, 22°C <2.5


VI. Long Life Oxygen Sensor (O2 Sensor) O2-A3 Life:

Output Drift Percentage output change over 3 months <2
Operating Life Time for 20.9% O2 output to drop to 85% of original signal (months) >36


VII. Long Life Oxygen Sensor (O2 Sensor) O2-A3 Environmental:

Humidity Sensitivity Oxygen change percentage: 0-95%RH, 40°C <0.7
CO2 Sensitivity 5% CO2, oxygen reading percentage / CO2 concentration 0.1
Pressure Sensitivity At 20kPa, output change percentage / pressure change percentage <0.1


VIII. Long Life Oxygen Sensor (O2 Sensor) O2-A3 Key Parameters: 

Temperature Range ℃ -30~55
Pressure Range Kpa 80-120
Humidity Range %rh continuous humidity (short time 0-99%RH) 5-95
Storage Life Sealed storage life at 3-20℃ (months) 6
Load Resistance Ω (recommended) 47-100
Height mm (including foam gasket) 17.4
Weight grams <16