insize ISHW Operation Manual

www.insize.com

MN ISHW- -E

IS HW

WE BSTER HARDNESS TESTER

OP ER ATION MAN UA L

Attention

Excessive pressure on the handle may damage the anvil.

Torsion and slide of the workpiece will damage the indenter.

The tester is not at its best accuracy below 4HW and above 17HW.

The distance between the indentation and the edge of the workpiece
should be greater than 5mm.

The distance between any indentations should be greater than 6mm.

The surface of the workpiece must be vertical to the indenter.

The back side of specimen must be in good contact with the anvil.

Dirty workpiece will result in inaccurate readings.

The oxide film of 10μm can affect the test result by up to 0.5~1HW.

The painting on the workpiece must be removed before testing.

Slow force application will result in a slightly lower reading.

Use the calibration sheath with the ISHW-L20A tester when testing
on thin workpiece and test block.

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