linux compatible usb oscilloscope

[Rob Seastrom]

Only seem to be having issues with one circuit out of four in this set of racks.

Probably use a laptop though.  :)

-r

> On Apr 18, 2018, at 7:24 PM, Mark Whittington <markwhi at gmail.com> wrote:
> 
> I hope you have whichever server you're doing logging with on its own UPS.
> 
> On Wed, Apr 18, 2018 at 6:27 PM, Phil via Tacos <tacos at amrad.org> wrote:
> Bear in mind that whatever you use to monitor the power supply, the utility company will blame it for the outage.
> 
> Phil M1GWZ
> 
> 
> 
> > On 18 Apr 2018, at 20:57, Rob Seastrom <rs at seastrom.com> wrote:
> > 
> > 
> > Pretty sure that the Kill-A-Watts that I've played with have an update cycle of a couple hz or slower.  :(
> > 
> > I'm looking for short brownout or glitch logging.  Detection is not hard; the servers seem to do an adequate job of it.
> > 
> > Once detected I can look at the logs and slurp the relative file into my favorite visualization software and create some pictures.
> > 
> > -r
> > 
> >> On Apr 18, 2018, at 3:52 PM, Jacek Radzikowski <jacek.radzikowski at gmail.com> wrote:
> >> 
> >> Quite an old project, very hackish, but could be easily adapted to do what you need: https://learn.adafruit.com/tweet-a-watt/overview-1
> >> 
> >> Jacek
> >> kw4ep
> >> 
> >> 
> >> On Wed, Apr 18, 2018 at 1:30 PM, Rob Seastrom <rs at seastrom.com> wrote:
> >> 
> >> Hi gang,
> >> 
> >> After 18 continuous years of no problems I just suffered my second power event in 72 hours at Equinix.
> >> 
> >> I'm looking to borrow (or for recommendations for purchase if it's cheap) a USB oscilloscope which I propose to plug directly into the 120v AC feed to the rack, and have write a time series of log files so I can reconstruct the actual waveform if/when we get dinged again for advanced finger pointing.  So obviously we are looking for software that is capable of that.
> >> 
> >> We also (hopefully) have a Dranetz 606 power disturbance analyzer on its way.
> >> 
> >> Any thoughts?  Actual pro equipment that I can borrow also gratefully accepted.
> >> 
> >> Thanks,
> >> 
> >> -r
> 
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