4.3 System Reset
If the display unit isn't working properly or halt, you should reset system.
Replace the batteries and remount them , then turn on the power.
4.2 Calibration
The calibration can be done in any scale (HLD, HRC,
HRB, HB, HV, HSD), so as to farthest decrease the
measuring error.
Before calibration, the scale should be converted into
the scale needed. Such as to calibrate in HB, "HB"
should be selected by press button.
Press button for about 2 seconds until the
number of impact times flicker that the impact time
become to “0”.
Test 5 times on test block to obtain the average
value (can delete some error data in operation).
Press and hold button about 2 seconds to
display the calibration mode.
Enter the standard value of test block.
Press or to change the value and press
or to move digit.
❶
❷
❸
❹
Mat'L
Avg.
HRC
Avg.
HL
Mat'L
Avg.
Avg.
HL
Mat'L
Avg.
HRC
Avg.
HL
SCALE
DIR
SCALE
DEL
MAT
Note:
A) If calibration in the other scale(HRC, HRB, HB, HV or HSD), the scale must be
adjusted in measurement mode first.
B) In the other scale (HRC, HRB, HB, HV, HSD) calibration mode, the standard
values input is different from calibration in Leeb hardness(HL).
25.0HRC, should be entered into "250" (HRB is the same).
85HB, should be entered into "085"(HV, HSD are the same).
If the input data exceeds the range, the calibration will not be performed.
Steel
&
Cast
Steel
Alloy Tool Steel
Stainless Steel
Grey Cast Iron
Ductile Iron
Cast Aluminum Alloy
Brass
Bronze
Copper
Forging Steel
Materials
HV HB HRC HRB HSD
81-955
80-898
85-802
83-976
20.0-68.4
20.4-67.1
19.6-62.4
19.8-68.5
81-654
85-655
63-336
140-387
19-164
40-173
60-290
45-315
142-651
38.4-99.5
46.5-101.7
23.8-84.6
13.5-95.3
59.6-99.6
32.5-99.5
26.4-99.5
Low Carbon Steel
Hi-Carbon Steel
Chrome Steel
Cr-V Steel
Cr-Ni Steel
Cr-Mo Steel
Cr-Ni-Mo Steel
Cr-Mn-Si Steel
Hi-Strength Steel
Stainless Steel
Materials
Tensile Strengh
(MPa)
375-788
774-1710
742-1845
736-2026
782-2058
747-1888
850-1947
781-2045
1170-2693
740-1725
Appendix
A-1 Hardness Scale Conversion Range
A-2 Tensile Strengh Conversion Range
. 8 .
. 9 .
DUM111-00-0000EN1511
