On 2010-02-22, Jordan wrote:
My cheap electronic calipers have started playing up. If I move it too
quickly, it reads wrong. If moved slowly it seems OK, but that's not
very reassuring. Are these things total junk to be avoided, or just I
got a bad'un? New battery didn't help.

O.K. What new battery (cell) did you use? These typically take
the LR44/SR357 type cells, and there are Alkaline versions which don't
put out as much voltage. Make sure that it is a true SR357 and see what
happens.

Also -- try washing any accumulated oil and coolant off the
cloth/plastic face of the bar. These work by capacitive connection to
patterns in the bar under the covering, and accumulation of things which
will at least partially conduct electricity (or even change the
dialectric constant) can keep them from working right.

The behvior of yours is typical to what I see with tired cells,
but I haven't personally experienced the buildup of grunge yet so I
don't know what it is like.

Enjoy,
DoN.

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