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Mine will do that occasionally, most of the time it’s 3-5 sec.It seems to be taking longer for the checker to finish the zeroing of the first sample. Been taking up to 16 seconds. Does that seem right?
Thanks. Thought is was broke. Just seams like it never did this before. I even tried a new vile.It's normal. Mine does it too.
Sometimes the Alk checker takes what feels like forever to zero itself.
Actually makes me trust the instrument more