AO-03 Oxygen sensor
Product Summary:
The AO-03 oxygen sensor is a type of sensor that measures oxygen
concentration based on electrochemical principles. It adopts a
molded body design and features fast response speed, accuracy and
reliability. The AO-03 oxygen sensor is small in size, easy to
carry, assemble and replace, and has a higher cost performance
compared with sensors of the same type.
◼ 1-25% Vol.O2 linear output
◼ No external power supply is required when working
◼ Plug and play
◼ Quick response
◼ Accurate and reliable
Product Description:
The AO-03 oxygen sensor is widely used in fields such as coal
mines, steel, petrochemicals, and air monitoring. For instance, it
is installed on oxygen alarms, air quality detectors, and
commercial air purifiers in mining areas. The data provided in this
document was measured at 20°C, 50% RH and 1013 mbar and is valid
for 3 months from the date of sensor manufacturing. Please strictly
follow the instructions for operating the oxygen analyzer and
replacing the oxygen sensor.
Usage requirements:
1. Storage and Usage
The AO-03 design is suitable for operation in various environments
and harsh conditions, but it is still necessary to avoid exposure
to high concentrations of solvent vapors during storage,
installation and operation.
When using sensors with printed circuit boards (PCBS), a degreaser
should be applied before installing the sensors. Don't do it
directly.
Stick it on or near the shell, as the solvent may cause the plastic
to crack.
2. Cross-sensitivity:
Toxic gases at TLV levels do not affect the cross-sensitivity of
the sensor. At very high levels (i.e., percentage levels), highly
oxidizing gases (such as ozone and chlorine) can interfere with the
extent of their oxygen equivalent, but most other common gases have
no effect.
3. Acidic gas:
Acidic gases (such as CO2 and SO2) will be absorbed by the
electrolyte, which will lead to an increase in the oxygen flux
reaching the electrode, approximately 0.3% more oxygen signal for
every 1% of CO2. AO-03 is not suitable for continuous operation
when the CO2 concentration is higher than 25%.
| Recommended load resistance | 100 Ω |
| Shell material | ABS |
| Weight | < 16 grams |
| Azimuth sensitivity | < 0.2% Vol.O2 equivalent |
| Operating temperature range | 0-50 ℃ |
| Recommended storage temperature | 0-20 ℃ |
| Working pressure range | ± 20% of atmospheric pressure |
| Working humidity range | 5% - 99% RH, no condensation |
| Long-term drift 2 | Signal attenuation of less than 2% per month |
| Expected service life | 24 months (in the air) |
| Packaging | Sealed blister |
