8 Oct
2004
8 Oct
'04
10:40 a.m.
At 06:08 PM 10/8/2004, you wrote:
Shake of excess water and rinse again. Dry quickly
in a warm place. I often set them in the sun but for winter
drying, an oven set to about 140-150F works well. Use
a cookie pan or piece of foil to block direct heat radiation
from the heating elements ( not a problem in convection
ovens. Also don't even think of using a microwave! ).
Pretty easy for an oven to get too hot.
Polystyrene caps aren't much good when heated past 185F/85C.
After washing circuit boards I make
(last stage is DI water from a filter setup)
I shake 'em off as you say but then
use a cardboard box (the type copier paper comes in)
with a hole in the top for a hair blow dryer.
Another hole in the side at the other side lets the air out.
A thermometer in the box shows it never gets over 150F/65C
Cleaning technique has worked on circuits where leakage had to be on the
order of a few tens of picoamps.
1mv across 1000 MEGohm = 1pa.
Ed K.