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Common Questions
1.
Our “Pure Silver” range is calibrated to put .9999 silver in the green and .999 silver in the yellow on the right. We do this
because we so frequently see .999 silver counterfeited that we want all users to be cautious of .999 silver samples and
to check the other aspects (markings, weight, and size) of the sample prior to making any judgment. If you are using an
2.
The left side of the reading range indicates less resistivity and the right side indicates more resistivity. If a sample reads to
the left, it means it is less resistive than expected; if a sample reads to the right, it means it is more resistive than expected.
3.
Modern coinage is designed to have the same resistivity as older 90% silver coinage to ensure they all work in vending
machines. The best way to ensure your quarters are 90% silver is to check their weight: modern quarters are about 0.5
grams lighter than older quarters.
4.
The device needs to be actively measuring the sample when you press the MEASURE button to bring up the dimensions
5.
The device will ask for calibration when powering on and when plugging in an attachment. In regular use, we recommend re-
of all samples and press the CAL button to re-calibrate.
6.
The PMV PRO electronically measures thickness and takes the average thickness from the face of the coin while trying to
account for relief, design, and lettering. Mints and retailers measure coin thickness using calipers at the rim, not the face.
Because of this different method of measuring, the PRO’s thickness measurement is usually slightly thinner than what’s
published by the mint or retailers.
7.
The PMV PRO can go for 6 - 8 hours of constant use before needing a charge. The device has a high-capacity battery, so you
can leave it charging overnight or for long periods without damaging the system.
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