Arduino codes and docs for using O2 medical sensors
On this graph, we can see the curves of the O2 sensor KE-50 and the O2 multimeter CY-12C before and after they receive a O2 pulse of 1 second.
After the pulse, we see the curve of the O2 multimeter decrease while the one for the O2 sensor KE-50 do not decrease yet because of an air exchange smaller than 200-300ml per minute. Sensors should be used under conditions where the air exchange is greater than 200-300ml per minute in order to obtain the response speed as specified in the response time graph on the datasheet.
