DMQ QH5 U, User Manual

Page: 69 / 77

55 Appendix
Choose the UCI probe that is best suited for your application and take
all of the following into consideration.
Unit
Material
Steel Aluminum Copper Brass
HV
100~940 44~189 40~130 45~196
HB 95~500 40~160 75~120 42~169
HRB 55~100 28~91 2~67 10~93
HRC 20~68 — — —
HS 32~97 — — —
MPa 320~2190 — — —
The following are minimum test piece requirements that need to be
met in order to obtain precise and repetitive measurements.
QHUS10
(10N / 1kgf) QHUS50
(50N / 5kgf)
Roughness (Ra) 1,5 µm 2,5 µm
Curvatura Radio >5 mm
Weight >0,1 Kg
Thickness <1 mm
Don’t measure of a previous indentation or in highly corroded parts.
The test piece surface must be clean, dry and free of grease.