10
3 Preparation
3.1 Instrument Preparation and Inspection
Verification of the instrument is achieved by performing tests on the
supplied standard test block. The error and repeatability of displayed
value should be within the regulation of Appendix table 2.
Calibration:
Press
key, while pressing
down the S key to power on the
system. Then the user calibration
screen will be shown on the
display.
Take 5 tests on the standard hardness block. The unit will display the
average measured value. Short-press S to increase or short press H to
decrease the digit to its nominal value shown on the test block.
Long-press S to confirm the calibration finally. Or long-press H to
cancel the calibration.
Range of adjustment: ±30HL.
The measurement parameters, including the material setting, the
hardness scale and the impact direction can’t be changed during
calibration.
