Using A Foil Thickness Gauge - Elcometer 124 Operating Instructions Manual

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2 USING THE FOIL THICKNESS GAUGE
1. Open the jaws by the lever at the top of the dial
2. Insert the sample between the anvils. Gently release the lever.
3. The long needle indicates small changes in thickness, the short needle shows how many complete
turns made by the long needle.
To set Zero, check that the measuring faces of the anvils are clean. Release the knurled screw on the top
left of the dial and turn the scale until '0' lines up with the end of the long needle. The short needle should
be close to '0'.
To calculate the thickness, first look at the short needle to see how many revolutions have been counted
on the small scale. Multiply this number by the full-scale value and add on the long needle reading to obtain
the total thickness.
The two black markers on the outer edge of the dial can be positioned to indicate the upper and lower
specification limits.
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