I would expect the button is for zero-ing the scale before you put any weight on it. In some cases, you could have something on top a scale you don't want included in the net weight like an extension of some sort for example. Also, just a guess, but maybe the ambient temperature changes the reading (unloaded) a bit?
Blanco1 wrote:
myredracer wrote:
When using a Sherline scale, you may find you need to jump up and down on the tongue a bit to make the scale settle. If you don't, the reading can be wrong.
Thanks for the tip.
But is that a button in the top of the dial?
& if yes what does it do?