R22 2BUD info

[abucksdiver]

Do any of you YBOD users have the tech specs for the R22 2BUD sensors?

In particular, I need to confirm the voltage range (7-13mv?), the load (10K?) and the pin-out connections....

Thanks for your help.
Andrew

[Duncan Price]

Originally Posted by abucksdiver

Do any of you YBOD users have the tech specs for the R22 2BUD sensors?

In particular, I need to confirm the voltage range (7-13mv?), the load (10K?) and the pin-out connections....

Thanks for your help.
Andrew

http://www.teledyne-ai.com/pdf/r22d.pdf

[abucksdiver]

Thanks, Duncan,
I was just trying to confirm that the R22 2BUD and the R22D were (electrically) the same! I have already got the linked page.

Again, thanks, it confirms what I hoped!

Andrew

[abucksdiver]

OK, next silly question.....

How do you tell if a sensor has stopped working? How do you test the cells?

I've got a "not yet working" O2 analyser, complete with a second-hand R22 2BUD cell, and as soon as I connect the cell and switch the unit on, the reading drops to zero... the first thing I need to assertain is whether it is the cell or the unit that is not working...

Andrew

[Duncan Price]

Originally Posted by abucksdiver

OK, next silly question.....

How do you tell if a sensor has stopped working? How do you test the cells?

Measure the voltage drop in air across a 10 k resistor using a multimeter, then blow O2 across the sensor face - the output should rise to approx 5x what it was in air. Sensor's a good 'un for your purposes. If not then its duff.

Duncan