O2-A2

O2-A2

Manufacturer:: Alphasense

Alphase O2-A2 Galvanic Electrochemical Oxygen Sensor

Specifications

Product Introduction

The O2-A2 Oxygen Sensor is a vital component in safety monitoring, both in portable and fixed monitors. With its patented no-leak design, the O2-A2 offers uncompromised reliability and accuracy for your instruments. The O2-A2 Oxygen Sensor boasts a lifespan of 2 years.

Features

  • Patented no-leak design for uncompromised reliability
  • 2-year operating life
  • Fast response time (t90 < 13 seconds)
  • Low zero current
  • Excellent linearity
  • Stable output with minimal drift
  • Consistent performance across temperature ranges
  • Superior batch-to-batch repeatability
  • No thermal spikes during temperature shocks

Applications

  • Portable gas monitors
  • Fixed gas detection systems
  • Safety monitoring in industrial environments
  • Confined space entry monitors
  • Oxygen deficiency detection

Specifications Table

Output 80 to 120 μA @ 20.9% O2
Response time t90 < 13 s from 20.9% to 0% O2
Typical mean response time 8 s
Zero current < 2.5 μA in N2
Linearity 0.6 % O2 deviation @ 10% O2
Output drift < 1 % change in output @ 3 months
Operating life > 24 months until 85% original output of 20.9% O2
CO2 sensitivity 0.3 % change in output / % CO2 @ 5% CO2
Temperature range -30 to 55 °C
Pressure range 80 to 120 kPa
Humidity range 5 to 95 % rh non-condensing (0 to 99% rh short term)
Storage period 6 months @ 3 to 20°C (store in sealed container)
Load resistor 47 to 100 Ω
Diameter 20.0 mm (including label)
Height 17.4 mm (including foam ring)
Weight < 16 g

To learn more, please download the PDF.

Datasheet: