On Wed, 30 May 2012 10:17:46 -0500, dpb wrote:

On 5/30/2012 8:48 AM, T. Keating wrote:
...

No, I have an accurate mechanical meter..

How do you know that?

By confirming accurate measurement using alternate measurement
methods.. (Controlled experiments, shut off all circuits except
calibrated/individually measured loads, etc)