21 Jul
2006
21 Jul
'06
1:04 p.m.
der Mouse wrote:
Good point. No doubt it does much of this in "software"
based on observations with calibration references (I know
there's a fair bit of work calibrating the 8840 on the
various different ranges, etc.). And, as such, the
designers could have chosen lots of *different* measurement
schemes/algorithms (internally) to get the accuracy they wanted.
I sent emails to friends known to have Fluke DMMs -- if
no luck *here*, maybe one of them will come through with
the goods...
Is there any
reason why you *need* to have [its] rated accuracy
(besides "gee, it would be nice...")?
No. But I don't know how its calibration works; if it's possible that,
for example, voltage is fine but resistance is totally wonky, I'd like
to fix the latter. Or, the 1-10V and higher ranges are fine but the
sub-1V ranges are out of whack. These may not be possible - but I
don't know, and until I do, I have to consider it suspect.