Hi,
I suspect the electronic scale has an "auto-zero" feature. When
just turned on (or even after a while), the scale thinks a very low
weight is zero and resets the scale. Try putting all three pieces on
at once.
One of my inexpensive 100g x 0.01g scales does the same thing
for very low weights unless I put a bit of extra weight on the scale
with the piece and then remove the extra weight (this tricks the auto-
zero feature). Other of my scales show zero at first but slowly, up
to ten seconds, recognize the low weight and update the display.
Some scales turn off the auto-zero feature if the scale is manually
zeroed (press the zero or tare button). Try that.
Finally, with these inexpensive digital scales, keep a reference
weight with you all the time and check (or recalibrate) the scale
often, especially when it is moved to a new location. I use the
scale cover as a reference weight to check if a recalibration is
needed. With these methods (and some anti-static precautions, such
as an ion generator or good old humidity), even the cheaper 10g x
0.001g electronic scales can work well.
Leo
Bloomington IN
--- In Indoor_Construction_at_yahoogroups.com, LeRoy C Cordes
<lcordes_at_...> wrote:
>
> I have a RiteWeight digital scale that reads in hundredths of a
gram and
> is very repeatable. My new ministick prop, assembled, weighs 110
mg -
> when I take and place each blade individually plus the hub on the
scale
> (all 3 components of the prop on the scale) it shows no weight. I
have
> done this numerous times and it always comes out the same - the 3
> components weigh nothing and the assembled prop weighs 110 mg.
>
> I know 2 things, this is overweight for a ministick (110 mg) and
that
> this has little bearing on indoor flight but it is just a
puzzlement and
> I wondered if anyone else has run into this or has an explanation.
>
> LeRoy Cordes
> AMA 16974
> Chicago, IL
> In God We Trust
> ____________________________________________________________
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Received on Fri Jan 23 2009 - 09:16:11 CET