> Hi, > > One of my APC devices reports: "unacceptable utility voltage rate of change". > I believe it has something to do with input voltage fluctuating too fast > maybe even beneath or over the input voltage thresholds. > Should I worry about this? > should I measure input voltage? (I suppose I'd need more than multimeter > readings. Maybe an oscilloscope or a multimeter that can record statistics? - > I'm no expert in this field...)
A scope wouldnt do it, you couldn't stare for hours, days, not blink & then memorise the glitches. There are special machines that log power fluctuations. I used one maybe in 1977, so theyre not new & can be/ were once simple :-) With modern micro electronics one could do more logging. Rather than look for more hardware, as inside of (eg my) APC is stuff full already, if I were in your shoes, I'd see if maybe APC might be able to emit a real time output one could log on PC. Cheers, Julian -- Julian Stacey, BSD Unix Linux C Sys Eng Consultant, Munich http://berklix.com Reply below not above, like a play script. Indent old text with "> ". Send plain text. No quoted-printable, HTML, base64, multipart/alternative. _______________________________________________ Nut-upsuser mailing list [email protected] http://lists.alioth.debian.org/cgi-bin/mailman/listinfo/nut-upsuser
