On 2011-11-20, N_Cook wrote:
amdx wrote in message
...
On 11/19/2011 9:01 PM, P E Schoen wrote:
I have two Harbor Freight digital calipers, item #47257, and I've had
problems with one of them especially, where the display will go blank.
It seemed to work sometimes if I squeezed the enclosure, and I thought
it was a bad battery or bad connection. But a fresh battery didn't work.


That's why I like the Dial calipers vs Digital Calipers, no concern
about batteries or electronics.
(Dial Calipers, Item # 66541, Out of Stock)

Although a couple years ago HF had the 6" Digital calipers on sale for
$9.99, I bought two. They are still in the boxes and I use my Dial
calipers. I think I might give one away as a Christmas present.
Mikek



I've never used the new-fangled ones - do you have to do a clean jaws, close
jaws, zero calibration check/0 reset ,every time you use them ? as the count
must be lost each time it is switched off

Most of the newer ones dont really switch off -- just the
display is blanked to save power, so the reading is preserved. (But,
the battery life is not as good. On the Starrett ones which I have, the
battery holder slides in and out, and by sliding it less than 1/16" you
can disconnect the battery (thus extending the life) at the cost of
having to re-zero when you power them back on. I normally do exactly
this.

The Mitutoyo is not as convenient to disconnect the batteries,
so I live with it -- but it also has an extra feature. Aside from
remembering when turned off -- it can remember two zeros -- the absolute
zero, and the incremental zero (say you zero it to tell how much left to
remove in the lathe), and by pushing a button, you go back to the
absolute zero without having to clean the jaws and check.

Enjoy,
DoN.

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