As digits rise, applications are less 'general', but these meters at
the outset were mostly for labs, not for servicing. Work in
instrumentation: sensors, transducers etc., can use uV precision
foremost, accuracy preferred. A diff DVM is ideal but not necessary,
a sensitive DMM is a cheaper substitute.
http://www.sensorland.com/HowPage078.html
At 12:09 PM 8/12/2013, J. Forster wrote:
My main interest is as a 'sanity check'. I use DMMs for engineering purposes.
Shields up:
IMO, there are very few applications, other than fundamental physics
research, that really NEED 5,6,7, or 8+ digits.
I would no more use a multi digit DVM to do what can be done with a
differential voltmeter than use a carrier phase tracking GPS to measure
for a living room carpet.
Shields down.
-John
Sincerely,
Marv
Philadelphia, PA
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