Oxygen Sensor (O2 Sensor) Lead-free 3-Electrode - LFO2-A4

• Output: 90 to 120 μA @ 20.9% O2
• Response time t90: < 15 (s) from 20.9% to 0 % O2
• Linearity: < 0.10 % O2 deviation @ 10% O2
• Operating life: > 48 months
• Temperature range: -30 to 50 ℃
• Pressure range: 80 to 120 kPa
• Humidity range: 5 to 95 % rh continuous
• Weight​: < 6​g​

  • Model Number: LFO2-A4
  • Data Sheet: Date Sheet File
Quantity:
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  • Oxygen Sensor (O2 Sensor) Lead-free 3-Electrode
  • Oxygen Sensor (O2 Sensor) Lead-free 3-Electrode
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Product Specification

LFO2-A4 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. The new LFO2-A4 lead free A-series sensor requires continuous biasing but offers longer lifetime.

LFO2-A4 Oxygen Sensor size:
20mm diameter, the industry standard size for portable gas detectors

LFO2-A4 Oxygen Sensor (O2 Sensor) PERFORMANCE
Output
μA @ 20.9% O2
90 to 120
Response time
t90 (s) from 20.9% to 0 % O2
< 15
Linearity
% O2 deviation @ 10% O2
< 0.10



LFO2-A4 Oxygen Sensor (O2 Sensor) LIFETIME
Sensitivity @ -20℃
% (output @ -20℃/output @ 20℃)
80 to 90
Sensitivity @ 50℃
% (output @ 50℃/output @ 20℃)
105 to 115
Output drift
% change in output @ 3 months
< 1
Operating life
months until 85% original output of 20.9% O2
> 48



LFO2-A4 Oxygen Sensor (O2 Sensor) KEY SPECIFICATIONS
Temperature range

-30 to 50
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 pot, open circuit)
6
Bias voltage
mV
-600
Diameter
mm (including label)
20.0
Height
mm (including foam ring)
17.4
Weight
g
< 6
 

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