12
4
Testing
Program
4.1
Start
‐
Up
Press the
key to power up the instrument. The instrument
will go directly to the main measurement screen.
4.2
Loading
Pushing the loading‐tube downwards until contact is felt. Then
allow it to slowly return to the starting position
4.3
Localization
Place the impact device support ring firmly on the surface of the
sample, the impact direction should be vertical to the testing
surface.
4.4
Testing
Press the release button on the top of the impact device to
take a test. ASTM requires the average of 5 tests in a given
area to determine the actual hardness.
