I will be using my Vinmetrica SC-300 almost every day now for the next few weeks. How often do I need to calibrate it? After every time I shut it off, once a day, every other day, etc...
Its been said here before that you should calibrate each time you use it. I think on the Vinemetric FAQ someone asked this and they recommended once a day even if you were switching between the SO2 and PH probe. You may want to check their recommendation or shoot them an email.