Notes on calibration
Practical notes for instrument workshops and the people who audit them.
· 5 min read
As found and as left: what each reading tells you
Why a calibration records two sets of readings, what each one is for, and how to read them together.
· 6 min read
Setting calibration intervals from your own history
How to start with a sensible interval and adjust it with the as-found results your instruments actually produce.
· 4 min read
What an expired calibrator certificate really costs
Traceability runs through the calibrator. When its certificate lapses, every calibration made with it is in question.