It has been so long since Weston last made standard cells of any
stripe that it is doubtful that yours is measuring within its
accurate range. I would imagine that by now, Weston's site has
been cleaned of most of its mercury and cadmium contamination,
and is probably only just barely considered a superfund site...
What type (saturated or unsaturated), and what voltage is your
cell reading?
OBTW, a 10M DVM is a little on the high side as far as loading
goes for a standard cell. Protocol requires that you to use a
balanced bridge type measurement, and draw no current from the
cell.
-Chuck Harris
Robin Birch wrote:
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I¡¯ve got an old Weston standard cell that sits on my bookshelves and I check the DVMs against that. I¡¯ve never calibrated it but it seems close enough. I don¡¯t really ask much of my calibration, within two or three decimal places is fine.
Robin
On 17 Mar 2018, at 05:28, Craig Sawyers <c.sawyers@...> wrote:
assume
