68raggtop
Contributor
I bought this:
OxyCheq - 15 PPM CO Bump Test Calibration Gas
Dave
As an additional reminder, when you turn on the analyzer and get something other than zero, make sure that you verify before you cal. I turned mine on and it read 10ppm in the garage one day. I was about to cal it and thought maybe I should go outside and check first. It went to zero. Turns out my son had backed his car out shortly before.
OxyCheq - 15 PPM CO Bump Test Calibration Gas
Dave
As an additional reminder, when you turn on the analyzer and get something other than zero, make sure that you verify before you cal. I turned mine on and it read 10ppm in the garage one day. I was about to cal it and thought maybe I should go outside and check first. It went to zero. Turns out my son had backed his car out shortly before.
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