On Mon, 15 Sep 2008 01:37:29 +0000, Larry wrote:

Snip
The LED display blanks when the reading makes no sense to the Link. That's
normal. I think we have some stray millivolts being fed to the current
sensing of the link. New wires and terminals and cleaning the shunt's
screws will cure it. MAKE SURE YOU DO NOT SCRAPE AWAY ANY OF THE METAL
FROM THE SHUNT! We trim shunts with a file to make them calbrate. You'll
see file marks. More filing will make current readings too high...not
good.


I think that you are "a bit over the top" here Larry G
The connection screws are normally tapped into brass blocks, there is
no problem with cleaning and polishing and if badly corroded filing
this screw area. I totally agree that filing the actual shunt material
between the two blocks is a NO NO. I am sure that is what you meant
but hope this makes it a little clearer to those with less knowledge.

Richard