No experience required; can be used in any
position and in any space that will allow for the operator?s hand. The
hardness reading is instantly indicated on the dial, which is divided into
one hundred graduations. No waiting, pre-loading or separate measurements.
For accurate readings, material should be at least 1/32"
thick and large enough for a minimum distance of 1/8" in any direction
from the indenter point to the edge of the specimen. The testing area should
be smooth and free from mechanical damage.
Simply exert a light pressure against the instrument to
drive the spring-loaded indenter point into the material. The indenter
point must be perpendicular to the surface being tested.
On very soft metals, the highest reading should be used
since cold flow permits the spring-loaded indenter point to continue penetration. |