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Date:      Tue, 15 Oct 2013 14:12:37 +0200
From:      Ralf Mardorf <ralf.mardorf@alice-dsl.net>
To:        freebsd-questions@freebsd.org
Subject:   Re: UPS buying suggestion
Message-ID:  <1381839157.757.55.camel@archlinux>
In-Reply-To: <1381838368.757.50.camel@archlinux>
References:  <CACo--msUpY-6r7MkuEvrPDpSVdFZyBotSA-eS7aLGMFDeq_vDQ@mail.gmail.com> <20131015134826.528289be@X220.ovitrap.com> <1381838368.757.50.camel@archlinux>

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On Tue, 2013-10-15 at 13:59 +0200, Ralf Mardorf wrote:
> On Tue, 2013-10-15 at 13:48 +0800, Erich Dollansky wrote:
> > As you need the current anyway, I would use an ampere meter to
> > determine the exact current drawn. I got already some surprises there.
> 
> You can do a Ampere measurement, but that doesn't help you, you need to
> measure the consumption over a longer period.
> 
> Regarding to the hair dryer, it's an electromotor ;).


PS: Please don't recommend to use multi meters, even if they would
provide the wanted results. Using multi meters for the mains only should
be done, when galvanic isolation by an isolating transformer is given.




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