Oxygen Sensor (O2 Sensor) - O2-A3

– 3 year warranty
– High-performance leak-free O2 Sensor
– Less than 2% change in output over 3 months
– T90 of less than 15 seconds
– < 0.7% Humidity affect
– < 0.1% CO2 Sensitivity
– Up to 99% humidity resistance

  • Model Number: O2-A3
  • Data Sheet: Date Sheet File
Quantity:
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  • Oxygen Sensor (O2 Sensor)
  • Oxygen Sensor (O2 Sensor)
  • Oxygen Sensor (O2 Sensor)
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Product Specification

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 Features

– 3 year warranty
– High-performance leak-free O2 Sensor
– Less than 2% change in output over 3 months
– T90 of less than 15 seconds
– < 0.7% Humidity affect
– < 0.1% CO2 Sensitivity
– Up to 99% humidity resistance


O2-A3 Oxygen Sensor O2 Sensor Schematic Diagram


O2-A3 Oxygen Sensor O2 Sensor PERFORMANCE
Output
μA @ 22℃, 20.9% O2
55 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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