VTF gauge

When measuring VTF is there a “proper” place on the platter to set the device?  I have a fairly cheap digital model and the meter reading usually changes by a few thousandths depending if I measure at the outside, middle, or inside of the platter?  I realize I need to get a better scale but assuming I do is there a location on the platter that is the proper place to weigh?  Is it normal for different areas to read differently or should it be consistent across the platter?  FYI, I am measuring a VPI Prime unipivot but with the second pivot installed. 

Jeez, Chak. I’ve been using the DS3 for 2 years, still on its original AAA batteries. So indeed yours must have been defective.

Eking, I wouldn’t worry about a few thousandths of a gram. Ideally it shouldn’t matter where you make the measurements. But I wouldn’t blame your scale for the tiny deviation.

Should have said few “hundredths” not thousandths. Outside say 1.75, inside about 1.72?

Before people knock the River Stone gage maybe try one first......

I have verified it's total accuracy repeatedly with known calibrated weights similar to a jeweler uses.

Oh and it's still on same battery it came with.