While searching for calibration guidance on my MAS345 (see my previous post), I ran across some nifty, custom data-logging software for this meter that will run on a modern, 64-bit OS:
http://nooleanbot.blogspot.com/2013/07/mas-345-digital-multimeter-data.htmlHe's programmed it in Java, so in theory it should run with no problems on 64-bit Windows, Linux, and/or OS X.
I haven't tried this, but will be doing so sometime soon.
JP
Cincinnati, OH
USA