-06-
Voltage characteristic of output signal:
2.2
2.2.1
Hardness tester
Diagram of the instrument
HV
HRC
127~
364
HV
32~168
23.8~
85.5
40~173
13.5~
95.3
60~290
45~315
material
hardness
unit
impact device
D/DC
D+15
C
G
E
DL
steel and
cast steel
HRC
17.9~
68.5
19.3~
67.9
20.0~
69.5
22.4~
70.7
20.6~
68.2
HRB
59.6~
99.6
47.7~
99.9
37.0~
99.9
HRA
59.1~
85.8
61.7~
88.0
HB
127~
651
80~638
80~683
90~646
83~663
81~646
HV
83~976
80~937
80~996
84~1042
80~950
HS
32.2~
99.5
33.3~
99.3
31.8~
102.1
35.8~
102.6
30.6~
96.8
steel
HB
143~
650
CWT
ST
HRC
20.4~
67.1
19.8~
68.2
20.7~
68.2
2 2 . 6 ~
7 0 . 2
HV
80~898
80~935
100~941
82~1009
Stainless
steel
HRB
46.5~
101.7
HB
85~655
HV
85~802
GC. IRON
HRC
HB
93~334
92~326
Nc
IRON
HB
131~
387
c. alum
HB
19~164
23~210
HRB
23.8~
84.6
22.7~
85.0
brass
HB
HRB
bronze
HB
copper
HB
Appendix
Appendix one
-23-
Main unit
Impact device
Impact phase
time
Rebound
Phase
O
p
e
ra
ti
o
n
E
x
p
la
n
a
ti
o
n
s
555
555
V
V
A
A
E
E
Hl
Hl
Steel and cast steel
Steel and cast steel
9
3
0
7
8
2
1
4
6
5
STORE
ENTER
9
3
DEL
0
DIR
7
AVE
8
HARD-
NESS
2
ESC
MAT
’
L
1
TIMES
4
MENU
6
5
