On 15 Apr 2006 07:52:29 -0700, "K7ITM" wrote:

I'd suggest you either find a calibrator to connect your meter to, or
make something you can use as a transfer standard. Maxim, for example,
has some reasonably low cost voltage references with good stability
(very few ppm/C). Then calibrate the transfer standard against some
known in-calibration volt meter or calibrator, at a known temperature,
and use it. I'd think in Scottsdale you could find a calibration
service that would do the job for you, or maybe you know someone who
has access to an accurate voltmeter. Of course, you should really do
it for several ranges. You can maybe calibrate a voltage divider
yourself, but it would save a lot of trouble if you could just do it
directly. If you don't know anyone who works with more accurate
instruements regularly and don't want to pay for a calibration, perhaps
you could pay a visit to the EE or physics department in Tempe and use
one of their instruments.

Most of the equipment I've seen at University EE departments (even
grad school), hasn't seen a calibration lab in 3 or 4 decades.

Some time back, a firend gave me a Leeds & Northrup Presision
Potentiometer. I've used it occasionally to check some voltmeters,
but I don't have anything over 3-1/2 digits of resolution.

Regards,
Ed

SNIP

Cheers,
Tom