[Nut-upsuser] problem with output voltage on a mustek ups
carlos.efr at mail.telepac.pt
Sat Mar 8 22:13:26 UTC 2008
On Fri, Mar 7, 2008 at 11:15 AM, Pedro Mendes Jorge <pmjorge at lip.pt> wrote:
> >> This output voltage is too low! I think power spikes may be better
> >> than using this voltage.
> > Is this indicated by the UPS, or did you measure this voltage externally?
> > Arjen has mentioned this before, but the values returned by UPSes are
> > generally not calibrated.
> It is returned by the UPS. But again, I sometimes have an output voltage
> of ~225V when it is not trimming.
> I could try and measure the "real one", but following Arjen's advice I
> won't waste my time, nor someone else's time (yours).
I used to have a Mustek UPS (600VA). The voltage readings it reported
were off by 12~15V. When on line power it reported too much voltage,
and when on battery it reported too low a voltage. This comparing to
the values read with a voltimeter.
Don't sweat it. Cheap hardware has downsides...
More information about the Nut-upsuser