The PHASE II ultrasonic/dynamic portable hardness testers are capable of measuring the surface hardness of a broad variety of metals on flat, round, thin or large surfaces. Unlike the standard Dynamic hardness testers, these “state-of-the-art” portable hardness testers incorporate “Ultrasonic UCI” technology, which enables the hardness testing of very thin and small workpieces, which otherwise could not be tested accurately using a portable device. Non-destructive in it’s function, these hardness testers allow for the testing of highly sensitive or finished parts that previously could not be tested in an operational setting. The non-destructive (ndt) feature of these hardness testers allow the operator to accurately test parts without causing physical or structural damage that would normally lead to disposal or refinish of operators part.
The Phase II MET series of portable hardness testers offers a model that include a dynamic probe for easy, quick hardness testing of parts with a mass greater than 5kg |
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UCI Hardness Testing Method:
MET-U1 and MET-UD
A hardness testing method based on the measurement of the frequency shift of a resonating rod caused by the essentially elastic nature of the finite area of contact between the indenter and the test piece during the penetration. Described as a hardness testing practice using a calibrated instrument by pressing a resonating rod with a Vickers style Diamond indentor with a fixed force against the surface of the part to be tested. |
LEEB Hardness Testing Method:
MET-UD only
This is a dynamic hardness test method using a calibrated instrument that impacts a spherically shaped carbide ball with a fixed velocity (generated by a spring force) onto a surface of the material under test. The ratio of the rebound velocity to the impact velocity of the impact body is a measure of the hardness of the material under test. |
Functions:
Easy To Read Menu Operation
Large LCD Display w/ Back Light
USB Interface
Automatic Conversions to: Brinell, Rockwell C, Rockwell B, Vickers and Leeb
Automatic Mean Value
Data Archive Capacity
Standard Accessories:
Base Instrument
10N (1kgf) Hand-Held Probe – U1 & UD models
Dynamic “D” Leeb Impact Device – UD model only
Calibrated Test Blocks:
Model MET-U1 2pc HRC Test Blocks
Model MET-UD 2pc HRC Test Blocks 1pc Leeb Test Block
USB Ouput Cable
Custom Carry Case
Battery Charger
Operation Manual
Model No.
Data |
MET-U1
(w/Ultrasonic Device) |
MET-UD
(w/Dynamic Impact Device) |
| Probe Type |
UCI 10N
Utilizes Vickers style Diamond
Indentor |
Dynamic Leeb “D”
Utilizes a 3mm Carbide Ball |
| Tolerance |
+/- 3.0% of average from the reference value of the test block with a minimum of 5 tests |
+/-6 L (L=Leeb) |
| Measuring Range: |
HRC: 20-67
HRB: 59-99
HB: 75-650
HV: 75-1000 |
HRC: 20-67
HRB: 13-99
HB: 75-650
HV: 80-980
LD: 200-900 |
| Applicable Test Materials |
Steel & cast steel, alloy tool steel, stainless steel, grey cast iron, spheroidal iron, cast aluminum, brass, bronze, wrought copper alloy. |
Steel & cast steel, alloy tool steel, stainless steel, grey cast iron, spheroidal iron, cast aluminum. |
| Minimum Thickness |
.004” (Steel) |
Approx. 0.472” (Steel) |
| Battery Type |
NiMH (C) |
NiMH (C) |
| Operating Temperature |
5-104 ° F |
5-104 ° F |
| Dimensions (Gauge only) |
145 x 80 x 40mm |
145 x 80 x 40mm |
| Weight (Gauge only): |
8.5oz |
8.5oz |
Technical Data for UCI Probe and Dynamic Indentor:
| Test Device |
UCI |
Dynamic |
| Length: |
160mm |
140mm |
| Diameter |
25mm |
25mm |
| Indentation Depth |
30μm |
300 μm |
| Pressure Force |
14.7N |
11Nm |
Transducer Test Life
(Approx) |
200,000 |
50,000 |
Min Thickness for Testing
(Steel) |
1mm |
12mm |
| Min. Radius for Test |
5mm |
10mm |
| Max. Surface Roughness |
Ra 2.5 μm |
Ra 3.2 μm |
| Memory |
100 Tests |
100 Tests |
| Time of Test |
4 seconds |
2 Seconds |
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PORTABLE HARDNESS TESTING
Why portable hardness testing? Portable hardness testers have come of age since the late 90’s, with a vast offering of high tech, digital instrumentation. Small, compact and menu driven, these instruments have never been easier to use for unlimited types of applications.
There are two basic methods of portable hardness testing that is accepted in the field today.
“Dynamic Impact” is based on the Leeb principle of hardness,developed by Dietmar Leeb in the 1970’s. A spring loaded impact body is thrust to the test surface, effecting rebound. The speed of both the initial thrust and the rebound is measured in a non-contact mode. This is calculated as a Leeb hardness value and then automatically converted to Rockwell C, B, Brinell, Vickers and Shore Values. It has effectually brought easy, fast and accurate results to portable hardness testing. |
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“Ultrasonic Contact Impedance” is based on a 136 degree diamond at the end of a vibrating rod being depressed into the test surface at a fixed load. The difference in Ultrasonic vibration frequency is then calculated into a hardness value. The UCI test procedure is slower than the Dynamic Impact style, however the “UCI” method of hardness testing is portable, easy and accurate. It also has its own advantages when utilized for certain testing applications. UCI testers are not restricted to large mass items like dynamic type testers. These units can test metals as thin as 1mm and at a hardness value as low as 20HRC (75HB). They also excel at performing hardness tests on larger, harder metals as well. Another reason for the rise in popularity is due to the fact that the UCI method is categorized as “Non-Destructive”. That translates into less scrap parts/ lower mfg costs due to necessary inspections. |
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Technical Data for Dynamic Impact Devices
Impact Devices → |
D/DC/DL |
D+15 |
C |
G |
Impact energy |
11Nmm |
11Nmm |
3Nmm |
90Nmm |
Mass of the impact body |
5. 5g |
7. 8g |
3. 0g |
20g |
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DL: 7.3g |
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Test tip |
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* Hardness |
1600HV |
1600HV |
1600HV |
1600HV |
* Diameter |
3mm |
3mm |
3mm |
5mm |
* Material |
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Tungsten |
Tungsten |
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carbide |
carbide |
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Impact device |
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* Diameter |
20mm |
20mm |
20mm |
30mm |
* Length |
147/86mm |
162mm |
141mm |
254mm |
* Weight |
75/50g |
80g |
75g |
250g |
Max. hardness of sample |
940HV |
940HV |
1000HV |
650HB |
Preparation of surface |
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* Roughness class ISO |
N7 |
N7 |
N5 |
N9 |
* Max. roughness depth Rt |
10 µ m |
10 µ m |
2.5 µ m |
30 µ m |
* Average roughness Ra |
2 µ m |
2 µ m |
0. 4 µ m |
7 µ m |
Min. weight of sample |
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* Of compact shape |
5kg |
5kg |
1.5kg |
15kg |
* On solid support |
2kg |
2kg |
0.5kg |
5kg |
* Coupled on plate |
0. 1kg |
0. 1kg |
0. 02kg |
0. 5kg |
Min. thickness of sample |
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* Coupled |
3mm |
3mm |
1mm |
10mm |
* Min. thickness of layers |
0. 8mm |
0. 8mm |
0. 2mm |
- |
Indentation of test tip |
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With 300 HV |
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* Diameter |
0. 54mm |
0. 54mm |
0. 38mm |
1.03mm |
* Depth |
24 µ m |
24 µ m |
12 µ m |
53 µ m |
with 600 HV |
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* Diameter |
0. 45mm |
0. 45mm |
0. 32mm |
0. 90mm |
* Depth |
17 µ m |
17 µ m |
8 µ m |
41 µ mC |
with 800 HV |
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* Diameter |
0. 35mm |
0. 35mm |
0. 30mm |
- |
* Depth |
10 µ m |
10 µ m |
7 µ m |
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Technical Data for UCI Hardness Tester
Test Device |
U1
(UCI) |
Length |
160mm |
Diameter |
25mm |
Indentation Depth |
30µm |
Pressure Force |
14.7N |
Transducer Test Life (approx) |
200,000 |
Min. Thickness for test |
1mm |
Min. Radius for Test |
5mm |
Max Roughness of surface |
Ra 2.5µm |
Max Archive |
100 Tests |
Time of Test |
4 sec. |
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Comparison of Hardness Testing Methods-Phase II Models shown below |
Data |
Dynamic |
Ultrasonic |
Rockwell |
Requirements |
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Surface Finish |
Smooth |
Smooth |
Smooth-Semi Rough |
Rigid Support of Sample |
Yes |
Yes |
Yes |
Test sample portability |
Not required |
Not required |
Required |
Procedures |
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Structural Steel |
Functional |
Functional |
Functional |
Heat Treated Steel |
Functional |
Functional |
Functional (HRC) |
Case Hardened Material |
Functional |
Functional |
Functional (HRC) |
Non-Ferrous Metals |
Functional |
Functional |
Functional (HRB) |
Large Samples |
Yes |
Yes |
Restricted |
Small Samples |
Restricted |
Yes |
Yes (w/proper scales) |
Thin Samples |
Restricted |
Yes |
Restricted |
Curved/Round Surfaces |
Yes |
Yes |
Restricted |
Special Features |
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Automatic Test Procedure |
Yes |
Yes |
Yes |
Direct Hardness Value |
Yes |
Yes |
Yes |
Required Time for Avg/5 Tests |
Approx. 10 Sec. |
Approx. 20 Sec. |
Approx. 2 Minutes |
Digital Display |
Yes |
Yes |
Some Models |
Scale Conversions |
Yes |
Yes |
Some Models |
Directional Testing |
Yes |
Yes |
No |
Standardized by: |
ASTM |
ASTM |
NIST (HRC scale only) |
Indentation Depth |
20µm |
30µm |
160µm |
Operator Requirements |
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Skills Required |
Minimal |
Minimal |
Minimal |
Possible Reading Error |
None |
None |
None |
Instrument Features |
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Portability |
Yes |
Yes |
No |
Power Supply |
Battery |
Battery |
Manual/110v |
Output to PC |
Yes |
Yes |
Some Models |
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Type |
Model |
Model |
Dynamic Testers |
PHT-2000D |
PHT-2500D |
Ultrasonic (UCI) |
MET-U1 |
MET-UD |
Rockwell |
900-331 & 900-340 |
900-360 & 900-370 |
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