CO Analyzer - How often do you need to calibrate?

[DandyDon]

Economical CO tank testing with an expensive hobby taught by instructors and agencies who are generally trying to ignore the risk rather than deal with the enormous changes needed to make the sport generally safer is just a tremendous ask.

What is the difference between span and bump testing?

That's really a big question. See big answer here: span calibration - Google Suche

bump testing before each use is unnecessary?

Bump testing is not supposed to be an accurate procedure; it's done to ensure that your tester is still alive & working rather than comatose with a malfunction giving false negatives. Since I quit smoking I don't get much out of my breath so tests so use street and marina traffic.

a drift of 1-2 ppm is irrelevant,

Shooting for more accurate reads would just be too much to hope for in our sport.

 

[Unaware6905]

Economical CO tank testing with an expensive hobby taught by instructors and agencies who are generally trying to ignore the risk rather than deal with the enormous changes needed to make the sport generally safer is just a tremendous ask.

That's really a big question. See big answer here: span calibration - Google Suche

Bump testing is not supposed to be an accurate procedure; it's done to ensure that your tester is still alive & working rather than comatose with a malfunction giving false negatives. Since I quit smoking I don't get much out of my breath so tests so use street and marina traffic.

Shooting for more accurate reads would just be too much to hope for in our sport.

Now, I finally understand. Thank you.