Holding the + probe on the battery in the open battery chamber, witht
the other probe to ground, turn the meter switch up to battery check
then right back to auto or manual. Then you must wait for the meter
display to "time out"(90 sec?).
The drain that shows after the display turns off is your idle drain,
around 5-7 ua for a 4T/Ti, as high as 33 in a 4.
John
Giles wrote:
>
> I think you really need a digital multimeter for this one. You are trying to
> measure current draw rather than voltage so the unit of measurement is amps -
> milli
> amps and micro amps.
>
> To measure the off state draw of a 4Ti you need a meter with a resolution of
> milli amps as the 4Ti is supposed to draw less than 18.
>
> To measure the on state draw of the 4Ti you need micro amps resolution.
>
> To measure current draw the meter has to be in series in the circuit. This
> means
> you have to remove the battery cover and one probe of the meter goes on the
> top of the battery stack. The other probe needs to contact the chasis or
> ground. I
> find inserting it in the tripod socket works. Set the shutter speed ring to
> manual
> 60 or B to test the off state draw or set it to any other and activate the
> meter to
> measure th on state draw.
>
> Giles
>
> Joel Wilcox wrote:
>
> > Oly Shooters:
> >
> > Occasionally, someone will indicate that they have measured how much their
> > cameras draw on their batteries. Can anyone explain how he or she measures
> > this draw? Is it something that can be done with a very basic tester (the
> > kind used to test batteries, ohms, continuity, etc.)?
> >
> > Cheers,
> >
> > Joel
>
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