900-331 & 900-331D Hardness Tester
Operation Manual
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Hardness Teste
r
MODEL NO. 900-331D
To reference digital indicator functions and usage, please see 900331-9500 Operation Manual at the back of this manual
Operating Instructions & Parts Manual
Please read and save these instructions. Read carefully before attempting to assemble, install, operate or maintain the products described. Protect
yourself and others by observing all safety information. Failure to comply with instructions could result in personal injury and/or property damage!
Retain Instructions for future reference.
Description
Phase II Hardness Testers accurately measure hardness of materials in Rockwell hardness A, B, and C scales. Heattreated steels are tested using a 120° diamond indentor in the C-scale (HRC 20-70). Soft materials are tested using a
1/16" carbide ball indenter in the B-scale (HRB 25-100). Very hard materials are tested using a 120° diamond
indentor in the A-scale (HRA 20-88). Tester features a weight adjustment handle for quick and easy adjustments
between different scales. Release and reset levers are provided for quick and accurate testing. Hardness Tester
includes standard, large and V-shaped anvils for holding small, large and round or curved materials.
Unpacking
Loose Parts Storage Box:
A. Large Anvil
B. Small Diameter Anvil
C. V-shaped Anvil
D. Five Test Blocks
1. One each, HRA 70-85
2. One each, HRB 75-95
3. One each, HRC 25-35
4. One each, HRC 40-50
5. One each, HRC 55-65
E. 120° Diamond Indentor
F. 1/16" Carbide Ball indentor
G. Storage Box
Remove 4-nuts from side panels of crate.
Carefully lift crate up from base. Leave the tester bolted to crate bottom.
Remove storage box from crate.
Do Not Discard Shipping Crate as This May
be Needed for Future Transportation.
• Be sure tester is level both front/back and left/right to 0.002 in/in.
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Operating Instructions & Parts Manual
Basic Set Up Information:
1) Loosen the 4 nuts on the bottom of the crate. Lift the crate off the platform being careful not to scratch the side of
the hardness tester
2) Remove the tool kit from the platform
3) Remove the plastic dust cover
4) Remove the string holding the handles and top cover of the machine
5) Lift the top cover straight up and off the machine
6) Remove the rubber band holding the indicator lever and discard it.
7) Remove the back cover of the machine by removing the 2 phillips head screws from the top and bottom of this
cover
8) Carefully remove the string that is holding the weight bar to the loading bar
9) Remove the weight bar from the loading arm by lifting the hook of the bar from the loop on the arm.
10) Remove the 2-nuts from the bottom of the bar.
11) Open the test kit and remove the 3 weights. Clan and oil/grease from these weights.
12) Take the round weight marked “A” or “1” and slide it up the bottom of the weight bar and proceed to place both
nuts back on the threaded part of the weight bar effectively holding the round weight in place.
13) Carefully place the weight bar back in the loop of the loading arm with the hook facing the front of the machine.
14) Place weight “B” or “2” and place on the middle section of the weight bar keeping the flat side of the weight facing
the rear of the machine. Place weight “C” or “3”on top of the weight bar keeping the flat part towards the rear of the
machine.
15) Install the rear cover with the 2-screws.
16) Install the top cover by placing it straight down while lining up the pins on each side.
17) Lower the rotary handle and remove the black plastic shaft protector. Keep this for future safety use.
18) Choose the applicable work table (anvil) and install on the machine.
19) Remove the Diamond penetrator from the tool kit and install in the penetrator shaft making sure the flat lines up
with the set screw on this shaft. Be sure that the diamond sits flush inside this shaft. See “Seating Diamond” section in
this manual prior to testing. Do not overtighten this set screw!
20) Remove all C-scale test blocks from the tool kit and clean off all grease or oil from both sides.
21) Set the weight selector knob to 1471 (150kg).
22) Place one of these test blocks on the anvil and rotate until the block just makes contact with the diamond. Begin to
turn the rotary handle making sure the large needle on the dial goes around 3 times. On the 3
that you stop when the large needle lands on the “0” at top dead center.
23) Push the black handle towards the rear of the machine. At this time the tester is putting the load on the test block
and you will see that the large needle will slowly move counter-clockwise. Once the needle stops moving you need to
pull the black handle back towards the front of the machine. At this time you take the reading off the black numbers
off the dial. Repeat this a minimum of 5 times to achieve an accurate reading.
Example of Weight installation
Optional Cabinet/Support Stand
rd
time you must be sure
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Operating Instructions & Parts Manual
A
dding Oil to the Handle Buffer: (if needed)
If when moving the Load/Unload handle and you feel it make fast hard
contact or hear a suction noise then its time to check the oil buffer.
On the left side of the machine (when standing in front of it) there is a small
metal access plate held on by 2 small screws. Remove the screws and plate to
expose the valve and reservoir.
Push the Load/Unload handle towards the back of the machine. Remove the
screw #25 and carefully add high grade hydraulic oil into the hole.
Begin pulling/pushing the Load/Unload handle back and forth until any
suction noise has disappeared.
Replace screw #25. Replace access plate.
24
25
23
22
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Operating Instructions & Parts Manual
Rockwell B Indentor
1/16” Carbide Ball
General Safety Instructions
1. Never use clamps, straps, any other tooling or equipment to mount specimen to the tester anvil.
2. Always use the proper anvil supplied.
3. Be sure to use proper indenter and weight for material and hardness to be tested. (See Figure 3).
Hardness Tester Should Be Maintained
1. Consult operation instructions for specific maintaining and adjusting procedures.
2. Keep the tool clean for best results.
3. Remove adjusting tools and wrenches. Form habit of checking that adjusting tools are removed before using
machine.
4. Keep all parts in working order. Check to determine that the parts will operate properly and perform their
intended function.
5. Check for damaged parts. Check for alignment, binding, breakage, mounting and any other condition that may
affect tool's operation.
6. Part that is damaged should be properly repaired or replaced. Do not perform makeshift repairs. (Use the parts
list provided to order replacement parts.)
Installation
Hardness Tester must be installed in a dust and vibration free environment. Mount tester to a support bench or table
with a minimum load rating of 500lbs.
1. Position tester on support surface as desired, mark location for the elevation screw on the support surface.
2. Drill a 2" diameter hole for the elevation screw.
Caution: The hardness tester will not open to its full capacity unless the elevation screw is allowed to pass
through a hole on the support surface.
Be sure tester is level both front/back and left/right to 0.002 in/in.
Basic Set-Up Information:
1) Remove Top crate cover from base. Carefully lift straight up to avoid scratching the side of the machine
2) Remove the tool kit and manual from the base of the crate
3) Remove plastic machine cover
4) With assistance, remove the two bolts under the base of the crate to remove the machine from the base.
5) Place machine on a sturdy vibration free table or bench. Bench should be rated for up to 500lbs.
6) Install 4-leveling feet (supplied) and make sure machine is level but its more important that the weights in
the back are hanging straight down. Check this using a small level.
Rockwell C Indentor
Diamond
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Operating Instructions & Parts Manual
Seating Your Diamond:
Caution: To ensure accuracy, mount the indenter by sliding it in the holder as far as possible and then securing the
indenter by tightening the set screw finger-tight only.
Place HRC test block on the small round anvil and begin by turning the handwheel clockwise until the block just
touches the diamond. At this point, continue rotating the handwheel until the large needle goes around approx. 3
revolutions. Let the machine sit idle for a few seconds and then loosen the set screw. Wait a few more seconds and
then tighten the set screw back up. This will allow the diamond to be “seated” in the shank. Take the load off by
turning the handwheel counter-clockwise and you can begin following instructions below.
Rotate the weight adjustment knob until the required weight scale is aligned with the alignment mark on the frame of
the machine.
1. Prepare the test specimen properly. Be sure that the top and bottom surfaces of the specimen are clean and free
of any grease, oil dirt, etc and free of any burrs or debris.
2. For small specimens (under 3" maximum length or diameter) use the small round anvil. Use the large anvil for
larger specimens. Use the V-shaped anvil for round or curved specimens.
Warning!
Do not test any specimen that cannot be safely and properly
positioned on and supported by the tester anvil.
Operation:
Determine the proper indenter, scale and weight for the material hardness to be tested. See chart on page 12.
Mount the required indenter in the indenter holder using the set screw on the side of the holder.
Test Procedure
Test procedure consists of a preload of the specimen using the force of the elevation screw and a test load using the
weights and lever arm assembly. Be sure that the weight reset handle is in rest(“unload”) position.
1. Mount specimen on required anvil. Rotate the elevation screw threaded collar clockwise slowly until the
specimen contacts the indenter. Be sure to position specimen so the indenter contacts clean, untested material.
2. Preload the specimen by rotating the leadscrew collar slowly until the large needle on the dial indicator rotates
two to three (2-3) revolutions. Stop rotation of handwheel when the large needle is within 3 hash marks of
vertical(TDC)
Caution: As the large needle is properly rotated 2-3 revolutions, the small needle rotates counterclockwise
90° to vertical at the red dot. If the large needle overshoots vertical by more than 5 hash marks, the test is
invalid and must be repeated from step 1.
3. Rotate the bezel so that the hash mark at the “0” mark at the top of the dial is aligned with the large needle.
4. Push the weight release handle towards the back of the machine to apply the major load. Wait until the large
needle stops rotating, approx. 5-8 seconds. This 5-8 second “dwell” time can be adjusted by turning valve on
dashpot.
5. Slowly PULL the weight reset handle back until it resets and locks in the reset position.
6. Read the material hardness from the required scale on the dial.
7. Rotate the handwheel counterclockwise to lower and release the specimen.
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Operating Instructions & Parts Manual
Maintenance
1. Be sure elevation screw and threaded collar are clean and lubricated. Lubricate with general purpose light duty
oil.
2. Keep top of leadscrew, collar and anvils clean and free of grease, oil, dirt, burrs, etc.
3. Use the test blocks periodically to check tester accuracy. Use an oil sharpening stone to remove the burrs from the
test blocks.
Fine adjustment for 900-331 (for 900-331D, please refer to
indicator instructions at the back of this manual)
IMPORTANT!
Please follow these instructions before making any adjustments:
1) Be sure that ALL packaging material is removed from inside and outside of the
machine.
2) Be sure that all three weights are in the correct position on the weight bar.
3) Make sure the machine is placed on a very sturdy bench as any movement will likely
change calibration over time. Level the machine by releasing the weights and
making sure they move only straight up and down. Adjust feet to counteract any
front to back or side to side motion.
4) Install the Diamond Penetrator (chrome) in to the machine
5) Set weight dial on 150kg (1471n)
6) Clean off and install the small round anvil
7) Clean off all HRC (Rockwell C) test blocks and place one on the anvil for testing.
8) Make sure the Load/Unload handle is in the UNLOAD position. (towards front of
machine)
9) Take note of the dial. The large needle on the dial should be slightly to the left of the
HRC “0”. Digital Indicators should be set to zero.
10) Turn the handwheel to bring the test block up until it just touches the
Diamond.
11) Continue turning up the handwheel until the large needle on the dial goes
rd
around 3 full revolutions. On the 3
TDC on the HRC “0”. Digital Indicators you should stop between 285 and 290 as side
bar raises to the dot.
12) Release the Load/unload handle back to load position. This puts the main
load on the machine. The large needle on the dial will begin to turn counter
clockwise.
13) Once needle stops moving (approx. 5-8 seconds) move the load/unload
handle forward to unload position and then take your reading. The black numbers
are HRC scale. Digital indicators wait till numbers stop and count dwell time.
rev make sure to stop when the large needle is
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Operating Instructions & Parts Manual
Please be sure to make very slight adjustments when calibrating the 900-331 as this machine is
extremely sensitive to any movement.
Always test first in Rockwell C scale. Install diamond indentor and set weight selector to
150kg(1471). Remove the top cover from the 900-331.
Adjusting the Indicator needle starting point:
While holding this screw steady, carefully loosen the set screw hex nut. By a slight turn of the set
screw, you will see the large needle on the dial begin to move.
Move to rest position which is 3 lines left of center.
Compensation adjustment for calibration:
Loosen the set screw hex nut. Facing the back of the machine, turn the knurled knob #31
clockwise to increase the number and counterclockwise to decrease the number. Take a minimum
of 3 tests on your test block to make sure the machine is reading correctly. If readings are low or
high you will need to raise or lower as just described. Make sure you start with indicator at rest
position which is 3 lines left of center on analog or set to zero on digital as the indicator setting
may move during knurled knob adjustment.
313029
Back side of indicator
Set Screw
Hex Nut
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Troubleshooting Chart
Symptom Possible cause(s)
Incorrect hardness measurement
When using the test block, a different
hardness is measured at different
locations on the block.
Dial indicator needle rotates too fast at
start of test
1. Contaminants effecting
measurement
2. Elevation screw cover is interfering
with specimen, anvil or elevation
screw.
3. Indentor is damaged.
4. Dash pot is low on oil.
1. Burrs on bottom of test block.
2. Air trapped under test block.
1. Dash pot is low on oil. 1. Refill dash pot
Operating Instructions & Parts Manual
Corrective Action
1. Be sure the anvil, top of elevation
screw, threaded collar, indentor and
specimen are all clean and free of oil,
grease, dirt, shavings, debris, etc.
2. Be sure elevation screw cover and
top is clean and free of any dirt, oil,
grease, etc. Position cover properly
on the elevation screw well below
the anvil.
3. Inspect indentor for damage, replace
diamond indentor if chipped or
broken, replace 1/16" steel ball if
deformed or damaged.
4. Refill dash pot, see Maintenance,
above.
1. Use oil sharpening stone to remove
burrs.
2. When testing different locations on a
test block, slide test block on anvil,
maintaining contact between anvil
and block.
See Maintenance, above.
Parts List:
1 Hoist Screw Rod 2 Axle sleeve
3 Bumper assembly 4 Whirl wheel
5 Turnscrew protect cover 6 Work bench
7 Protecting cover 8 Main axis assembly
9 Dial 10 Fixed board
11 Lever assembly 12 Rockwell bracket
13 Lever 14 Bracket base
15 Face type cam base assm 16 Rider
17 Assistant lever 18 Suspension member
19 Lifting eye 20 Upper lid
21 Shifting eye 22 Crotch
23 Poise 24 Link assm
25 Rear lid 26 Bevel gear
27 Across shoulder 28 Valve needle
29 Piston rod 30 Cylinder head
31 Load/relieve lever 32 First bracket
33 Second bracket 34 Finishing coat
35 Ram fastening screw 36 Ram
37 Lad manual wheel assm 38 Load/relieve knob assm
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Approximate Hardness Conversion Numbers for Non-Austenitic Steels (Rockwell C Hardness Range)
Rockwell C
150kgf
(HRC)
68
67
66
65
64
63
62
61
60
59
58
57
56
55
54
53
52
51
50
49
48
47
46
45
44
43
42
41
40
39
38
37
36
35
34
33
32
31
30
29
28
27
26
25
24
23
22
21
20
Vickers
(HV)
940
900
865
832
800
772
746
720
697
674
653
633
613
595
577
560
544
528
513
498
484
471
458
446
434
423
412
402
392
382
372
363
354
345
336
327
318
310
302
294
286
279
272
266
260
254
248
243
238
Operating Instructions & Parts Manual
Brinell Hardness Number C Rockwell Superficial Rockwell Number
10-mm
Standard
ball
3000kgf
(HBS)
…
…
…
…
…
…
…
…
…
…
…
…
…
…
…
…
(500)
(487)
(475)
(464)
451
442
432
421
409
400
390
381
371
362
353
344
336
327
319
311
301
294
286
279
271
264
258
253
247
243
237
231
226
10-mm
Carbide
ball
3000kgf
(HBW)
(739)
(722)
(705)
(688)
(670)
(654)
634
615
595
577
560
543
525
512
496
481
469
455
443
432
421
409
400
390
381
371
362
353
344
336
327
319
311
301
294
286
279
271
264
258
253
247
243
237
231
226
Knoop
500-gf
and
Over
A
Scale
60 kgf
(HRA)
D
Scale
100kgf
(HRD)
15-N
Scale
15-kgf
(HR15N)
30-N
Scale
30-kgf
(HR30N)
(HK)
…
…
…
920
895
870
846
822
799
776
754
732
710
690
670
650
630
612
594
576
558
542
526
510
495
480
466
452
438
426
414
402
391
380
370
360
351
342
334
326
318
311
304
297
290
284
278
272
266
261
256
251
85.6
85.0
84.5
83.9
83.4
82.8
82.3
81.8
81.2
80.7
80.1
79.6
79.0
78.5
78.0
77.4
76.8
76.3
75.9
75.2
74.7
74.1
73.6
73.1
72.5
72.0
71.5
70.9
70.4
69.9
69.4
68.9
68.4
67.9
67.4
66.8
66.3
65.8
65.3
64.8
64.3
63.8
63.3
62.8
62.4
62.0
61.5
61.0
60.5
76.9
76.1
75.4
74.5
73.8
73.0
72.2
71.5
70.7
69.9
69.2
68.5
67.7
66.9
66.1
65.4
64.6
63.8
63.1
62.1
61.4
60.8
60.0
59.2
58.5
57.7
56.9
56.2
55.4
54.6
53.8
53.1
52.3
51.5
50.8
50.0
49.2
48.4
47.7
47.0
46.1
45.2
44.6
43.8
43.1
42.1
41.6
40.9
40.1
93.2
92.9
92.5
92.2
91.8
91.4
91.1
90.7
90.2
89.8
89.3
88.9
88.3
87.9
87.4
86.9
86.4
85.9
85.5
85.0
84.5
83.9
83.5
83.0
82.5
82.0
81.5
80.9
80.4
79.9
79.4
78.8
78.3
77.7
77.2
76.6
76.1
75.6
75.0
74.5
73.9
73.3
72.8
72.2
71.6
71.0
70.5
69.9
69.4
84.4
83.6
82.8
81.9
81.1
80.1
79.3
78.4
77.5
76.6
75.7
74.8
73.9
73.0
72.0
71.2
70.2
69.4
68.5
67.6
66.7
65.8
64.8
64.0
63.1
62.2
61.3
60.4
59.5
58.6
57.7
56.8
55.9
55.0
54.2
53.3
52.1
51.3
50.4
49.5
48.6
47.7
46.8
45.9
45.0
44.0
43.2
42.3
41.5
45-N
Scale
45-kgf
(HR45N)
75.4
74.2
73.3
72.0
71.0
69.9
68.8
67.7
66.6
65.5
64.3
63.2
62.0
60.9
59.8
58.6
57.4
56.1
55.0
53.8
52.5
51.4
50.3
49.0
47.8
46.7
45.5
44.3
43.1
41.9
40.8
39.6
38.4
37.2
36.1
34.9
33.7
32.5
31.3
30.1
28.9
27.8
26.7
25.5
24.3
23.1
22.0
20.7
19.6
Scleroscope
HardnessD
97.3
95.0
92.7
90.6
88.5
86.5
84.5
82.6
80.8
79.0
77.3
75.6
74.0
72.4
70.9
69.4
67.9
66.5
65.1
63.7
62.4
61.1
59.8
58.5
57.3
56.1
54.9
53.7
52.6
51.5
50.4
49.3
48.2
47.1
46.1
45.1
44.1
43.1
42.2
41.3
40.4
39.5
38.7
37.8
37.0
36.3
35.5
34.8
34.2
A
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Operating Instructions & Parts Manual
Rockwell Superficial Rockwell Number
Approximate Hardness Conversion Numbers for Non-Austenitic Steels (Rockwell B Hardness Range)
Rockwell B
100kgf
(HRB)
100
99
98
97
96
95
94
93
92
91
90
89
88
87
86
85
84
83
82
81
80
79
78
77
76
75
74
73
72
71
70
69
68
67
66
65
64
63
62
61
60
59
58
57
56
55
…
…
…
…
…
…
…
…
…
…
…
…
…
…
…
…
…
…
…
…
…
…
…
…
…
Vickers
(HV)
240
234
228
222
216
210
205
200
195
190
185
180
176
172
169
165
162
159
156
153
150
147
144
141
139
137
135
132
130
127
125
123
121
119
117
116
114
112
110
108
107
106
104
103
101
100
…
…
…
…
…
…
…
…
…
…
…
…
…
…
…
…
…
…
…
…
…
…
…
…
…
10-mm
Standard
ball
3000kgf
(HBS)
240
234
228
222
216
210
205
200
195
190
185
180
176
172
169
165
162
159
156
153
150
147
144
141
139
137
135
132
130
127
125
123
121
119
117
116
114
112
110
108
107
106
104
103
101
100
…
…
…
…
…
…
…
…
…
…
…
…
…
…
…
…
…
…
…
…
…
…
…
…
…
Knoop
500-gf
and
Over
(HK)
251
246
241
236
231
226
221
216
211
206
201
196
192
188
184
180
176
173
170
167
164
161
158
155
152
150
147
145
143
141
139
137
135
131
129
127
125
124
122
120
118
117
115
114
112
111
110
109
108
107
106
105
104
103
102
101
100
99
98
97
96
95
94
93
92
91
90
89
88
87
A
Scale
60 kgf
(HRA)
61.5
60.9
60.2
59.5
58.9
58.3
57.6
57.0
56.4
55.8
55.2
54.6
54.0
53.4
52.8
52.3
51.7
51.1
50.6
50.0
49.5
48.9
48.4
47.9
47.3
46.8
46.3
45.8
45.3
44.8
44.3
43.8
43.3
42.8
42.3
41.8
40.9
40.4
40.0
39.5
39.0
38.6
38.1
37.7
37.2
36.8
36.3
35.9
35.5
35.0
34.6
34.1
33.7
33.3
32.9
32.4
32.0
31.6
31.2
30.7
30.3
29.9
29.5
29.1
28.7
28.2
27.8
27.4
27.0
26.6
F Scale
60kgf
(HRF)
…
…
…
…
…
…
…
…
…
…
…
…
…
…
…
…
…
…
…
…
…
…
…
…
…
99.6
99.1
98.5
98.0
97.4
96.8
96.2
95.6
95.1
94.5
93.9
93.4
92.8
92.2
91.7
91.1
90.5
90.0
89.4
88.8
88.2
87.7
87.1
86.5
86.0
85.4
84.8
84.3
83.7
83.1
82.6
82.0
81.4
80.8
80.3
79.7
79.1
78.6
78.0
77.4
76.9
76.3
75.7
75.2
74.6
74.0
15-T Scale
15-kgf
(HR15T)
93.1
92.8
92.5
92.1
91.8
91.5
91.2
90.8
90.5
90.2
89.9
89.5
89.2
88.9
88.6
88.2
87.9
87.6
87.3
86.9
86.6
86.3
86.0
85.6
85.3
85.0
84.7
84.3
84.0
83.7
83.4
83.0
82.7
82.4
82.1
81.8
81.4
81.1
80.8
80.5
80.1
79.8
79.5
79.2
78.8
78.5
78.2
77.9
77.5
77.2
76.98
76.6
76.2
75.9
75.6
75.3
74.9
74.6
74.3
74.0
73.6
73.3
73.0
72.7
72.3
72.0
71.7
71.4
71.0
70.7
70.4
30-T Scale
30-kgf
(HR30T)
83.1
82.5
81.8
81.1
80.4
79.8
79.1
78.4
77.8
77.1
76.4
75.8
75.1
74.4
73.8
73.1
72.4
71.8
71.1
70.4
69.7
69.1
68.4
67.7
67.1
66.4
65.7
65.1
64.4
63.7
63.1
62.4
61.7
61.0
60.4
59.7
59.0
58.4
57.7
57.0
56.4
55.7
55.0
54.4
53.7
53.0
52.4
51.7
51.0
50.3
49.7
49.0
48.3
47.7
47.0
46.3
45.7
45.0
44.3
43.7
43.0
42.3
41.6
41.0
40.3
39.6
39.0
38.3
37.6
37.0
36.3
45-T Scale
45-kgf
(HR45T)
72.9
71.9
70.9
69.9
68.9
67.9
66.9
65.9
64.8
63.8
62.8
61.8
60.8
59.8
58.8
57.8
56.8
55.8
54.8
53.8
52.8
51.8
50.8
49.8
48.8
47.8
46.8
45.8
44.8
43.8
42.8
41.8
40.8
39.8
38.7
37.7
36.7
35.7
34.7
33.7
32.7
31.7
30.7
29.7
28.7
27.7
26.7
25.7
24.7
23.7
22.7
21.7
20.7
19.7
18.7
17.7
16.7
15.7
14.7
13.6
12.6
11.6
10.6
9.6
8.6
7.6
6.6
5.6
4.6
3.6
2.6
A
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Operating Instructions & Parts Manual
Approximate Leeb (Type D) Hardness Conversion for Non-Austenitic Steels (Rockwell C Hardness Range)A
Leeb Hardness, Type D
Impact Device (HLD)
828
819
809
800
791
782
773
764
755
746
737
729
720
712
703
695
687
679
671
663
655
647
640
632
625
618
611
603
596
590
583
576
570
563
557
551
545
539
533
527
521
516
510
Rockwell C Hardness
150kgf (HRC)
62
61
60
59
58
57
56
55
54
53
52
51
50
49
48
47
46
45
44
43
42
41
40
39
38
37
36
35
34
33
32
31
30
29
28
27
26
25
24
23
22
21
20
Vickers Hardness
(HV 10)
762
737
711
688
667
645
625
605
586
568
550
534
517
503
487
473
460
447
434
422
410
398
388
377
368
358
349
339
330
323
314
306
299
291
284
277
271
264
258
251
245
240
234
Brinell Hardness
10mm Steel Ball
3000kgf (HBS)
(721)
(699)
(675)
(654)
634
614
595
577
559
542
526
511
496
482
467
455
442
430
418
407
395
385
375
365
356
347
338
328
320
313
305
297
291
283
276
270
264
258
252
246
240
235
229
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Weight - Load - Indentor Chart
K
R
Scale
Symbol
A Spheroconical
B 1/16” Carbide Ball 98.07 (10) 980.7
C Spheroconical
D Spheroconical
E 1/8” Carbide Ball 98.07 (10) 980.7
F 1/16” Carbide Ball 98.07 (10) 588.4 (60)
G 1/16” Carbide Ball 98.07 (10) 1471
H 1/8” Carbide Ball 98.07 (10)
L ¼” Carbide Ball 98.07 (10)
M ¼” Carbide Ball 98.07 (10)
P ¼” Carbide Ball 98.07 (10)
S ½” Carbide ball 98.07 (10)
V ½” Carbide ball 98.07 (10)
15N Spheroconical
30N Spheroconical
45N Spheroconical
15T 1/16” Carbide Ball 29.42 (3) 147.1 (15)
30T 1/16” Carbide Ball 29.42 (3) 294.2 (30)
45T 1/16” Carbide Ball 29.42 (3) 441.3 (45)
15W 1/8” Carbide Ball 29.42 (3) 147.1 (15)
30W 1/8” Carbide Ball 29.42 (3) 294.2 (30)
45W 1/8” Carbide Ball 29.42 (3) 441.3 (45)
15X ¼” Carbide Ball 29.42 (3) 147.1 (15)
30X ¼” Carbide Ball 29.42 (3) 294.2 (30)
45X ¼” Carbide Ball 29.42 (3) 441.3 (45)
15Y ½” Carbide Ball 29.42 (3) 147.1 (15)
30Y ½” Carbide Ball 29.42 (3) 294.2 (30)
45Y ½” Carbide Ball 29.42 (3) 441.3 (45)
Indentor Type Preliminary
Force
N (kgf)
98.07 (10) 588.4 (60)
Diamond
98.07 (10) 1471
Diamond
98.07 (10) 980.7
Diamond
1/8” Carbide Ball 98.07 (10)
½” Carbide Ball 98.07 (10)
29.42 (3)
Diamond
29.42 (3)
Diamond
29.42 (3)
Diamond
Operating Instructions & Parts Manual
Total
Force
N (kgf)
(100)
(150)
(100)
(100)
(150)
588.4 (60)
1471 (150)
588.4 (60)
980.7 (100)
1471 (150)
588.4 (60)
980.7 (100)
1471 (150)
147.1 (15)
294.2 (30)
441.3 (45)
Typical Applications Read on dial
Cemented carbides, thin steel, and
shallow case hardened steel
Copper alloys, soft steels, aluminum
alloys, malleable iron, etc.
Steel, hard cast irons, pearlitic malleable
iron, titanium, deep case hardened steel,
other harder than HRB 100
Thin steel and medium case hardened
steel, and pearlitic malleable iron
Cast Iron, Aluminum and magnesium
alloys, and bearing metals
Annealed copper alloys and thin soft
sheet metals
Malleable irons, copper-nickel-zinc and
cupro-nickel alloys
Aluminum, zinc and lead
Bearing Metals and other very soft
or thin materials. Use smallest ball
and heaviest load that doesn’t give
anvil effect.
Similar to A, C and D scales but for
thinner gage material.
Similar to B, F and G scales but for
thinner gage material.
Very Soft Material
Black
Red
Black
Black
Red
Red
Red
Red
Red
Red
Red
Red
Red
Red
Red
Black
Black
Black
Red
Red
Red
Red
Red
Red
Red
Red
Red
Red
Red
Red
Page 13
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Hardness
Reading
20
25
30
35
40
45
50
55
60
65
70
75
80
85
90
¼”
6.4mm
6.0
5.5
5.0
4.0
3.5
3.0
2.5
2.0
1.5
1.5
1.0
1.0
0.5
0.5
0.5
Operating Instructions & Parts Manual
Round Correction Factors
Corrections to be added to test results in the following scales for various diameter parts.
Corrections to be added to Rockwell C, A and D values
Diameter of Convex Cylindrical Surfaces
3/8”
10mm
4.5
4.0
3.5
3.0
2.5
2.0
2.0
1.5
1.0
1.0
1.0
0.5
0.5
0.5
0
½”
13mm
3.5
3.0
2.5
2.0
2.0
1.5
1.5
1.0
1.0
1.0
0.5
0.5
0.5
0.5
0
5/8”
16mm ¾”19mm
2.5
2.5
2.0
1.5
1.5
1.0
1.0
1.0
0.5
0.5
0.5
0.5
0.5
0
0
2.0
2.0
1.5
1.5
1.0
1.0
1.0
0.5
0.5
0.5
0.5
0.5
0.5
0
0
7/8”
22mm 1”25mm
1.5
1.5
1.5
1.0
1.0
1.0
0.5
0.5
0.5
0.5
0.5
0.5
0
0
0
1.5
1.0
1.0
1.0
1.0
0.5
0.5
0.5
0.5
0.5
0.5
0
0
0
0
1-1/4”
32mm
1.0
1.0
1.0
0.5
0.5
0.5
0.5
0.5
0
0
0
0
0
0
0
1-1/2”
38mm
1.0
1.0
0.5
0.5
0.5
0.5
0.5
0
0
0
0
0
0
0
0
Corrections to be added to Rockwell B, F and G values
Diameter of Convex Cylindrical Surfaces
Hardness
Reading
0
10
20
30
40
50
60
70
80
90
100
¼”
6.4mm
12.5
12.0
11.0
10.0
9.0
8.0
7.0
6.0
5.0
4.0
3.5
3/8”
10mm ½”13mm
8.5
8.0
7.5
6.5
6.0
5.5
5.0
4.0
3.5
3.0
2.5
6.5
6.0
5.5
5.0
4.5
4.0
3.5
3.0
2.5
2.0
1.5
5/8”
16mm ¾”19mm
5.5
5.0
4.5
4.5
4.0
3.5
3.0
2.5
2.0
1.5
1.5
4.5
4.0
4.0
3.5
3.0
3.0
2.5
2.0
1.5
1.5
1.0
7/8”
22mm 1”25mm
3.5
3.5
3.5
3.0
2.5
2.5
2.0
2.0
1.5
1.5
1.0
3.0
3.0
3.0
2.5
2.5
2.0
2.0
1.5
1.5
1.0
0.5
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Operating Instructions & Parts Manual
Minimum Thickness Requirements
Minimum allowable thickness for a corresponding hardness in the respective scales
Minimum
Thickness
Inch
0.006
0.008
0.010
0.012
0.014
0.016
0.018
0.020
0.022
0.024
0.026
0.028
0.030
0.032
0.034
0.036
0.038
0.040
Minimum
Thickness
mm
0.15
0.20
0.25
0.30
0.36
0.41
0.46
0.51
0.56
0.61
0.66
0.71
0.76
0.81
0.86
0.91
0.96
1.02
Rockwell C Rockwell A RockwellB Superficial
15N
…
…
…
…
…
…
…
…
69
67
65
62
57
52
45
37
28
20
…
…
…
…
…
86
84
82
79
76
71
67
60
…
…
…
…
…
…
…
…
…
…
…
…
…
…
94
87
80
71
62
52
40
28
…
…
92
90
88
83
76
68
…
…
…
…
…
…
…
…
…
…
…
Superficial
30N
…
…
…
82
78.5
74
66
57
47
…
…
…
…
…
…
…
…
…
Superficial
45N
…
…
…
77
74
72
68
63
58
51
37
20
…
…
…
…
…
…
Superficial
15T
…
…
91
86
81
75
68
…
…
…
…
…
…
…
…
…
…
…
Superficial
30T
…
…
…
…
80
72
64
55
45
34
…
…
…
…
…
…
…
…
Superficial
45T
…
…
…
…
…
71
62
53
43
31
18
4
…
…
…
…
…
…
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Operating Instructions & Parts Manual
Digital Indicator
Series 9500 Digital Indicators
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Operating Instructions & Parts Manual
IMPORTANT!
Follow the instructions for setting up the indicator BEFORE
performing any tests. Once the indicator is set up you can begin
taking tests as shown in the manual on Page 10.
Features:
The 9500 series digital indicators are an accurate yet affordable option to replace the dial
on your analog hardness tester. The 9500 series indicator gives you the complete
functionality of a true digital machine with popular features such as statistics, memory,
conversions to Brinell or Vickers, limit setting and more.
Each indicator will come complete with Data Cable, Charger and cable.
External Structure:
Charger
Port
Power
LCD Display:
“ZERO”
UP
Lock/
Exit
Menu/
Enter
Down
Charger Plug
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Operating Instructions & Parts Manual
K
R
Specifications:
Model No.
Scales-Rockwell
Resolution
Display
Memory
Conversions
Power
Auto-Power Off
Dimensions
Weight
Installation:
1) Be sure that indicator has sufficient charge. If the battery symbol is empty you should
charge the indicator for approx. 1.5 hours prior to use.
2) Press the Power button to turn on. The indicator will perform a self check and stop at
the main testing screen. Power OFF.
3) Make sure your hardness tester is in the UNLOADED position.
4) Remove the indicator from your hardness tester.
5) Place the digital indicator in place as shown in the picture below. Gently lift the
indicator stem to allow the measuring arm to go into the lifting hole of the stem. Gently lift
the measuring arm to be sure the up and down movement is smooth. Tighten screws once
in correct position.
900331-9500/900330-9500 900345-9500
A, B, C, D, E, F, G, H,
0.1HR 0.1H
128x64 Matrix LCD
w/Backlight
1000 Readings 1000 Readings
Brinell, Vickers Brinell, Vickers
Ni-Mh Battery w/Charger Ni-Mh Battery
114 x 37mm Dia.
Mounting: 108x16mm Dia.
14.8oz. 14.8oz.
15N, 30N, 45N, 15T, 30T, 45T
128x64 Matrix LCD w/Backlight
w/Charger
114 x 37mm Dia.
Mounting: 108x16mm Dia.
Measuring Arm Indicator Stem
Lockdown Screw
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Page 18
Operating Instructions & Parts Manual
Operation:
1) Power the indicator on.
2) There will be a value shown on the display. This value must be set to ZERO by turning
the fine adjustment on your hardness tester as shown in the picture below.
Example of display at Zero point.
Fine Adjustment Set Screw
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Operating Instructions & Parts Manual
Setting Parameters:
1) Hardness Scale: Press the Menu/Enter button. Make sure Measurement is highlighted.
Press the Menu/Enter button again and SCALE should be highlighted. Press the
Menu/Enter button to open up the list of hardness scales. Use the Arrow buttons to scroll
through the choices and highlight the scale that you want the indicator to read in.
If you are not sure about your selection, please reference the chart below:
Auto Locking:
This feature will automatically hold the hardness value the moment the reading is stable.
On softer metals the penetrator may continue to indent the material which may affect the
reading. The lock feature will prevent the value from changing once stabilized even though
the penetrator may still be moving.
Auto Locking con’t:
If you don’t want this feature then turn it off by changing in the menu. Follow instructions
below:
1) Press the Menu/Enter button. Make sure Measurement is highlighted. Press the
Menu/Enter button again and scroll down to Auto Locking. Auto-Locking should be
highlighted. Press the Menu/Enter button to open up the choices. Use the Arrow buttons to
scroll through the choices and highlight OFF if you don’t want to use this feature.
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Operating Instructions & Parts Manual
Auto Zero:
The 9500 series indicators allow you to select either Auto Zero or you can manually set
zero. Auto zero will bring the value back to zero automatically after the load is removed
from the previous test. When the indicator is set to Manual Zero you may need to pres the
Zero button on the indicator to be sure its set to Zero before the next test is performed.
Follow instructions below:
1) Press the Menu/Enter button. Make sure Measurement is highlighted. Press the
Menu/Enter button again and scroll down to Auto Zero . Highlight Auto Zero. Press the
Menu/Enter button to open up the choices. Use the Arrow buttons to scroll through the
choices and highlight OFF if you don’t want to use this feature.
Statistics:
This feature allows you to set the number of tests to be averaged. The results will
automatically be shown on the display after each test. Once the set number of tests have
been obtained, the average and repeatability value will be shown on the display.
Statistics, con’t:
1) Press the Menu/Enter button. Make sure Measurement is highlighted. Press the
Menu/Enter button again and scroll down to Statis Points. Statis Points should be
highlighted. Press the Menu/Enter button to open up the choices. Use the Arrow buttons to
scroll through the values of 2 Thru 9. According to ASTM, you should take a minimum of 5
tests and obtain your average for the true hardness value of your part. If you don’t want to
use this feature then scroll down past “2” and the display will show “OFF”.
Conversions:
The 9500 series indicators will display conversions to either Brinell or Vickers scale once
this feature is turned on.
1) Press the Menu/Enter button. Make sure Measurement is highlighted. Press the
Menu/Enter button again and scroll down to Conversions. Conversions should be
highlighted. Press the Menu/Enter button to open up the choices. Use the Arrow buttons to
scroll through the choices and highlight OFF if you don’t want this feature.
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Operating Instructions & Parts Manual
Upper/Lower Limit Setting:
The 9500 series indicators have an Upper/Lower limit setting with alarm. Once set, the
indicator will alert you to a hardness value that is outside of your preset limits.
See instructions for limit setting below:
1) Press the Menu/Enter button. Make sure Measurement is highlighted. Press the
Menu/Enter button again and scroll down to Limit Alarm. Limit Alarm should be
highlighted. Press the Menu/Enter button to open up the choices. Use the Arrow buttons to
scroll through the choices and highlight OFF if you don’t want this feature.
Highlight Enter and press the Menu/Enter button to set your limits.
Use the Up and Down arrows to change the values to match your desired limit settings.
Once obtained, press the Menu/Enter button to save. Scroll up to ON and highlight that.
Press the Menu/Enter button to save and return to the main test screen.
Memory Functions:
The 9500 series indicators can store up to 999 hardness values and can be viewed at your
convenience by accessing the memory. Access the memory setting by following below:
1) Press the Menu/Enter button. Scroll down to Memory and highlight it. Press the
Menu/Enter button again and you will see the three choices available for this indicator.
Browse All: This allows you to view all of the values stored in the memory.
Browse Select: This allows you to select the values in memory by a particular hardness
scale. In other words, if you only want to see the Rockwell C scale values, you would select
HRC in this menu.
Print: This is not an option on the 9500 series indicators.
System Settings:
1) Key Tone: This feature can be turned on or off in the menu.
2) Backlight: This feature can be turned on or off in the menu.
3) Language: This indicator can be set to English or Chinese in the menu.
4) Date/Time Setting: You can set the date and time in the menu.
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Operating Instructions & Parts Manual
TAKING A TEST:
Assuming the indicator has been set up correctly and the Auto Zero is turned on, you can
begin taking a test as you normally would with your hardness tester.
A) Make sure you have the correct penetrator installed and the weight selection set for
your hardness scale.
Reference the Weight Load Indentor Chart
1) Be sure that your anvil is clean of oil, dust, rust, etc.
2) Place a good quality calibration test block on the anvil and begin rotating the test block
up until you just make contact with the penetrator.
3) Continue rotating up and immediately take not of the Analog bar on the left side of the
indicator. This will rise as the block continues into the penetrator. The indicator will soon
“Beep” alerting you that its almost at the top. Once the pre-load is set the indicator will
show either 2.80mm or 3.20mm (depending upon the scale set) and immediately change
over to 100.0HRC. The analog bar will be solid right up to the Circle.
See picture below:
4) Once you see the display as shown above you must now apply the major load on the
hardness tester. You will now see the values on the display change in a descending order.
5) Once the value on the display is stable (should be between 5-8 seconds) you must now
Unload the machine and you can take your reading directly off the indicator display.
IMPORTANT!
Your first test should always be discarded. Begin testing for average on the second test.
ASTM suggests that you take 5 tests and obtain your average. That average is the value to
be used as the true hardness reading.
Pre-load
Indicator
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Operating Instructions & Parts Manual
CALIBRATION:
The 9500 series indicators have a built-in calibration feature which should only be used
for fine adjustments. If the obtained results on your calibration blocks are well outside of
tolerance, you should adjust and repair the base machine before you adjust the indicator.
1) Press the Menu/Enter button. Scroll down to System and highlight it. Press the
Menu/Enter button again and you must scroll down to Correction.
2) Press the menu/Enter button and you will see three choices:
a) Off
b) On
c) Enter
If you don’t want to change calibration then leave it in the off position and return to the
main test screen.
If you highlight ON, this will activate the Auto-Calibration feature which will allow the
indicator to automatically correct the measured value when the “Lock” feature is on.
If you highlight Enter, this will allow you to set the calibration by manually entering in the
value shown on the test block.
Example: If the value shown on your test block is HRC 25.8 then you would enter that
value while in the enter screen.
Now take a test on that same test block as normal.
Once the result has been obtained Press the Menu/Enter button and then choose Save and
then save the calibration. If you choose Exit then the calibration will not be saved.
Maintenance:
The 9500 series indicators are highly sensitive and accurate instruments and should be
treated as such.
These should remain in a temperature controlled environment with the least amount of
shock or vibration as possible.
Cleaning:
Use soft damp cloth only. Do not use harsh chemicals as this will deteriorate the finish of
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Operating Instructions & Parts Manual
Effective: 12/1/2011
Warranty Policy:
All portable and stationary material testing instruments manufactured for/by
Phase II shall be free from defects in material and workmanship for a period
of 1to 5 full years(depending upon model)from date of purchase. Parts found
to be defective shall be replaced or repaired at Phase II’s sole discretion.
Products found by Phase II to be misused, abused or neglected are not covered
under this warranty. Parts not covered by this warranty are normal wear and
consumable items such as (but not limited to) impact balls, impact bodies,
diamond indentors, carbide ball indentors, impact springs, cables and
connectors, batteries, diamond stylus, contact probes, etc.
Consumable(wearable) items such as cables and probes have a 90 day
warranty from date of purchase.
This warranty is exclusive and in lieu of all other warranties whether written,
oral or implied, including any implied warranties or merchantability or
fitness for a particular purpose. In no event shall Phase II be liable for any
incidental, special or consequential damages of any nature.
Return Policy:
All Phase II products must have authorization prior to return.
If product is not acceptable for any reason including application issues and
demonstrations, authorization for return must be obtained within 10 days of
receipt of product. Unit must be in same new condition it was received. Failure
to do so will result in an automatic 15% restocking fee.
Returns after 30 days will not be accepted.
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