OXYGEN GAS SENSOR USB (PL092)

Short description
The Oxygen Gas Sensor measures the gaseous oxygen concentration in the range of 0 to 100%.
It uses an electrochemical cell which contains a lead anode. The anode and cathode are immersed in an electrolyte.
When oxygen molecules enter the cell, they get electrochemically reduced at the cathode.
This electrochemical reaction generates a current that is proportional to the partial pressure of oxygen in the gas mixture.
The current is measured across a resistance to generate a small voltage output. The voltage output is amplified to the 0 ~ 5V output range.

Examples of experiments
The Oxygen Gas Sensor can be used to monitor gaseous oxygen in a variety of biology and chemistry
experiments such as:
– Monitoring human respiration.
– Monitoring changes in oxygen concentration during photosynthesis and respiration of plants.
– Monitoring respiration of animals, insects, or germinating seeds.
– Monitoring oxidation of metals such as iron.
– Monitoring consumption of oxygen by yeast during respiration of sugars

Technical data
Oxygen concentration range : 0 ~ 100 Vol.% O2 Gas
Output voltage range : 0 ~ 4 V in air at 25℃, sea level (standard) other range optional.
Resolution : 0.03% (12 bit)
Gas Sampling Mode : Diffusion through solid membrane
Linearity(R) : 0.9999(R) of full scale at constant temperature and pressure
Response Time(90%) : 30 Seconds
Humidity : 0 ~ 95% RH, non condensing
Operation Temperature Range : 0 ~ 50℃
Storage Temperature Range : -20 ~ 60 ℃
Warranty Life : 2 year (Oxygen Cell)