Are you sure they are unsaturated ? Because most unsaturated cells last only
10-20 years (AFIK). Saturated cells last much longer but they should be kept at
30 degrees celcius for the correct value. On the other hand, as far as I know
they do not survive if they are not kept vertical and most
pa4...@gmail.com writes:
I have 4 weston cells in a guildline cabinet with oven. I have the cal data for
the first 10 years they have been used. After this time the oven was turned off
, the lab was closed but all gear stayed put on that same place over 30 years
(the lab was turned into a
Joe,
Do you have any data about prior measurements of these cells or their
history?
I read somewhere there is a predicted decline rate based on time and
temperature IIRC.
Once you get the meter calibrated, you can 'track' their measurements.
Might also be time for a 'differential voltmeter' to
Sorry, no history at all. They were salvaged from old equipment. From what
I read, they are already below their voltage threshold and should be
tossed. I just thought it would be interesting to measure them anyway.
I think the decline rate was supposed to be around 0.08 uV per year, or
something
I suspected that there was nothing to do to rejuvenate these old cells. I
thought I'd ask anyway.
Thanks.
Joe Gray
W5JG
On Mon, Aug 26, 2013 at 9:16 PM, zbigniew169 zbigniew...@gmail.com wrote:
All my knowledge regarding Weston Cells tells me that is not possible in
any way :-((
