How do I read a manual caliper with Vernier?
A manual caliper with Vernier allows for precise measurements by combining the main scale and the Vernier scale. The measurement is taken by adding the distance between two markings on the Vernier scale to the next value on the main scale. This allows for an accuracy of up to 0.02 mm.
Manual caliper with vernier
Calipers are precision instruments that can measure both internal and external areas/distances with very high accuracy. The measurement results are interpreted by the operator based on the device scale. In manual calipers, there are two scales: the main scale and the Nonius. Unlike digital calipers, no battery is required here; however, reading and interpreting the measurement value is more difficult.
To measure the external dimensions of an object, the object is placed between the outer jaws. The jaws are brought together until the object is held firmly.
The first significant digit is read from the main scale just to the left of the "zero" on the Nonius scale. In the example shown, this is 23.
On the Nonius scale, the decimal value is now determined. The number on the Nonius scale is sought, whose scale division exactly aligns with any scale division from the main scale. In the example, this is the value 6 on the Nonius scale. Thus, the measurement value is 23.6.
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