--- In CDV700CLUB@y..., "Russell Wayne Perry" <rwperry@w...> wrote:
> Can someone tell me. A new alkaline made it work, but now no
contact? doesn't cir. check now. another also. also zero set changes
on different scales. One had red paint on the cal. screws but was set
differently. I set it back but not much better. Thanks anyone. I've
bought five on ebay and soon to receive all of them and need all to
I've learned the hard way that even a meter that registers OK on a
circuit check might not work. I'm also not impressed with people on
E Bay who sell survey meters as geigers and vice versa. My first
question would be: what kind of meters are we talking about?
My next thought is that if someone mess with the cal. before you got
the meter that means it may be out of alignment, so to speak, and you
will need to get someone with the correct equipment to give your
meters a tune up. Given that they probably haven't been calibrated
for years and may have been stored in conditions that were bad for
them, I'd send them to a calibrations firm that offers reasonable
prices or send them to a professional RADEF shop.
In my case when the zero set changed from level to level in once case
it meant out of cal., in another I needed a new ion chamber and in a
third there was a bad semiconductor. Unless you are good with
circuit diagrams and soldering irons (I'm not) and have the correct
calibrations equipment this sounds like it will be a professional fix.