I have a project and i can't seem to find out the pinout of this oxygen sensor
http://www.mspinc.com/max-12-replacement-oxygen-sensor-r109p45
Anybody have an idea?
i'm trying to connected it to my Arduino UNO.
Google found the pin out pretty easily. A 3 pin Molex connector. Left pin is -, right pin is + and center pin is output, 9-14 mv. The question you really will have to answer for yourself is what voltage does the device operate at? The companies seem very reluctant to disclose this information.
You are going to have to determine this for yourself using a variable voltage supply and a millivoltmeter on the center pin to the - pin to see when you begin to get readings. I see several portable o2 monitoring devices from the same company that use two AA cells, 3 volts.
Since the device you have is part of a surgical anesthetic system, the lower the voltage used, the better. So, start your detective work at 1 volt and work up to 3 volts by 1/4 volt increments.
Do you have more than one o2 sensor?
Good luck,
Paul