[Nut-upsuser] problem with output voltage on a mustek ups
Pedro Mendes Jorge
pmjorge at lip.pt
Wed Mar 12 14:23:47 UTC 2008
Carlos Rodrigues wrote:
> 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...
>
:^)
So what are you using now?
Pedro.
More information about the Nut-upsuser
mailing list