A serviced OM-4 should drain 10 - 15 microamps after the display turns off
(and you must start with the display off, push the lever up to battery check,
return it to auto, and let the 90 seconds count down until the meter turns
off, then measure the drain).
A 2s drains 15-20 mikes, a PC 10 mikes or less (and THOSE specs depend on
which Olympus technician you ask and whether or not he's having a good day).
John
Camtech
Giles wrote:
> >From another post -
> >I watched with some amusement as the great kennedy showed you,
> >a mere mortal, the error of your ways.
> >
> >I've had the unfortunate opportunity of sparring with the great
> >kennedy in the past.
> >
> >My advice would be to ignore him, for he is always right and
> >attempts to reason with him are futile.
>
> Even given the above warning I will stick my neck out and state that
> the advice given below is incorrect in terms of the amount of current
> to be measured by at least several orders of magnitude. You will
> want to be measuring a few milli amps, not amps! ;-)
>
> A few hundred amps out of a button cell? - Patent it quick!
>
> Giles
>
> snip
>
> How can
> > >I tell if a used OM4 I'm considering has already had the new circuit
> > >installed?
> >
> > If your dealer is particularly helpful, he might let you measure the
> > drain on the battery with a digital ammeter once it has powered down.
> > If it is the original circuit it is likely to be of the order of 10A or
> > so - it should be much less than 1A with the new circuit. When you
> > first make the circuit with the meter the OM-4 will be fully powered of
> > course, with a drain of several hundred A, so you need to wait for it
> > to power down.
> snip
>
> > Kennedy
>
>
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