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Portable Hardness Tester PHT-2005
Brief Introduction
The Leeb hardness number is the quotient of the impact body's
rebound velocity divided by its impact velocity. An impact body with
a spherical test tip made of tungsten carbide or diamond is
propelled against the test surface by a spring and then rebounds.
When the permanent magnet inside the impact body passes through a
coil, it induces an electric voltage, which is proportional to its
velocity.
- HL, HRC, HRB, HS, HV, HB values can be measured
- Integrated probe
- RS232 interface link to PC
- Data Memory. Automatically storing 510 groups of data with
mean value & testing time
- Measuring in All directions, easy operation
- Large dotted LCD display with backlight
- Date & Time display
- Automatic power turn off after 5 minutes without use
- Other impact device ( G, DC, D+15, C, E and DL) can be
connected
Materials &
measuring range
Materials |
HLD |
HB |
HRC |
HRB |
HV |
HS |
STEEL/CAST IRON |
300-900 |
80-650 |
20-68 |
40-100 |
80-977 |
32-100 |
ALLOY TOOL STEEL |
300-840 |
|
20-67 |
|
80-898 |
|
STAINLESS STEEL |
300-800 |
85-655 |
20-62 |
46-100 |
85-802 |
|
GREY CAST IRON |
360-660 |
93-334 |
|
|
|
|
SPHEROIDAL IRON |
400-660 |
131-387 |
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|
|
|
CAST ALUMINUM |
180-560 |
30-159 |
|
|
|
|
BRASS |
200-540 |
40-173 |
|
13-95 |
|
|
BRONZE |
300-700 |
60-290 |
|
|
|
|
WROUGHT COPPER ALLOYS |
200-700 |
45-315 |
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|
|
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Specifications
of Impact Devices
Impact Devices |
D/DC/DL |
D+15 |
C |
G |
E |
Application Range of compact device |
D Type for general pieces |
For measuring in grooves or recessed surfaces |
For measuring light and small piece and surface
hardened layer |
For measuring heavy and rough cast & forged pieces |
For measuring large hardness piece & roll |
DC type for hole or cylinder |
DL type for long and narrow channel or hole |
Impact Energy |
11mJ |
11mJ |
2.7mJ |
90mJ |
11mJ |
Mass of Impact body |
5.5g/5.5g/7.3g |
7.8g |
3.0g |
20g |
5.5g |
Hardness of spherical test tip |
1600HV |
1600HV |
1600HV |
1600HV |
5000HV |
Material of spherical test tip |
Tungsten carbide |
Tungsten carbide |
Tungsten carbide |
Tungsten carbide |
Diamond |
Diameter of spherical test tip |
3mm |
3mm |
3mm |
5mm |
3mm |
Length of impact device |
147/86/202mm |
162mm |
138mm |
255mm |
155mm |
Diameter of impact device |
20.5mm |
20.5mm |
20.5mm |
30.5mm |
20mm |
Weight of impact device |
75/50g |
80g |
75g |
250g |
80g |
Max. hardness of work piece |
940/950/950HV |
940HV |
1000HV |
650HB |
1200HV |
Average surface roughness of the test piece |
Ra: 2μm |
Ra: 2μm |
Ra: 0.4μm |
Ra: 7μm |
Ra: 2μm |
Min. Weight of test piece |
Direct Measuring |
>5kg |
>5kg |
>1.5kg |
>15kg |
>5kg |
On Stable Support |
2-5kg |
2-5kg |
0.5-1.5kg |
5-15kg |
2-5kg |
With compact coupling |
0.05-2kg |
0.05-2kg |
0.05-2kg |
0.5-5kg |
0.05-2kg |
Min. thickness of test piece |
coupled |
3mm |
3mm |
1mm |
10mm |
3mm |
Min. thickness of layers |
0.8mm |
0.8mm |
0.2mm |
1.2mm |
0.8mm |
Size of Indentation of spherical test tip: |
Hardness 300HV |
Indentation Diameter |
0.54mm |
0.54mm |
0.38mm |
1.03mm |
0.54mm |
Indentation Depth |
24μm |
24μm |
12μm |
53μm |
24μm |
Hardness 600HV |
Indentation Diameter |
0.54mm |
0.54mm |
0.32mm |
0.90mm |
0.54mm |
Indentation Depth |
17μm |
17μm |
8μm |
41μm |
17μm |
Hardness 800HV |
Indentation Diameter |
0.35mm |
0.35mm |
0.35mm |
|
0.35mm |
Indentation Depth |
10μm |
10μm |
7μm |
|
10μm |
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