How to calibrate probe by exposing it to air. Using Gravity Analog Dissolved Oxygen Sensor.
Account cancelled 2022-03-20 00:25:59 817 Views1 Replies Hello, even though the method of calibrating the sensor by exposing it to air is not very accurate, I would like to see what the error percentage is.
For this procedure, could you please let me know what the PPM of air to be considered is? I am reading 5.4 to 6.0 PPM by exposing my probe to air. I know it is temperature and pressure dependent. Is there a formula I could use? Thank you.
For this procedure, could you please let me know what the PPM of air to be considered is? I am reading 5.4 to 6.0 PPM by exposing my probe to air. I know it is temperature and pressure dependent. Is there a formula I could use? Thank you.
2022-06-24 23:54:13 Tonny12138
In a ventilated environment, the oxygen content in the atmosphere is usually 20.9% VOL. If you need more accuracy, it is recommended to use another calibration method.
Tonny12138 
.jpg)