User manual

Sauter GmbH
Tieringerstr. 11-15
D-72336 Balingen
E-Mail: [e-mail]
Tel: +49-[0]7433- 9976-174
Fax: +49-[0]7433-9976-285
Internet: www. sauter.eu
Instruction Manual
HMM
HMM-BA-e-1111 2
1.2. The Hardness value “L”
This term was introduced 1978 into measuring technology
by Dr. Dietmar Leeb. It contains the quotient for the impact
body’s rebound and impact velocity, multiplied by 1000.
Harder materials produce higher rebound velocity than
less harder ones. With reference to a particular material
group (i.e. steel, aluminium etc.), the L value represents a
direct hardness measurement and is used as such.
Comparison curves with other standard statistic hardness
values have been established (Brinell, Vickers, Rockwell
C, B) for the most prevalent materials, enabling the
L values to be converted into the relevant values by these
procedures. With this hardness tester, such hardness
values can directly be displayed in the hardness scales
HRC, HRB, HB, HV, HSD and tensile strength (MPa).
1.3 Main features
- Highly accurate, ± 6 HL
- Automatic correction for impact direction
- Large, easy to read display with backlight
- User profiles for fast change of all settings
- Conversion to all common hardness scales
HRC, HRB, HB, HV, HSD and tensile strength
(MPa).
- Supplied by dry-cell, Ultra-low-power
- Easy calibration
- Conforms to the Standard ASTM A956-02
1.4 Application range
- Appropriate for all metals
- Ideal for production level testing
- Best suited for on- site testing of heavy, big or
already installed parts
- Handy for difficult to access or confined test
locations
- Automatic compensation for impact direction
- Excellent for material selection and acceptance
tests
- Easy to handle and accurate on curved test
surfaces (R> 10mm)
- Metal production & processing
- Automotive & transportation
- Aerospace & shipyard
- Testing services & laboratories
1.5 Technical information
1.5.1 Display unit
* HL Display range: 0 to 999 HLD
* Accuracy: ± 6 HL
* LCD: large LCD with backlight
* Resolution: 1 HL; 1 HV; 1 HB; 0,1 HRC;
0,1HRB; 1 HSD; 1 MPa
* Power: dry cell (3 x 1.5V AAA)
* Operating temperature: 0°C up to + 50°C
(32°F up to 122°F)
* Storage Temperature: -10°C up to + 60°C
(14°F up to 140°F)
* Humidity: 90 % max.
* Dimensions: 150mm x 80mm x 24mm
(5.9 x 3.1 x 0.9 inches)
* Weight: Approx. 200g (main body)
1.5.2 Impact unit D
Impact energy: 11 Nmm
Mass of the impact body: 5.5 g
Test tip diameter: 3 mm
Test tip material: tungsten carbide
Test tip hardness: ≥ 1600 HV
Impact length: 147 mm
Impact maximum diameter: 20 mm
Impact weight: 75 g
1.6 Overview Display Unit
Picture 1-1
1.7 Impact Device Assembling
1. Impact body
2. Support ring
3. Coil
4. Cable
5. Catch chuck
6. Loading tube
7. Release button
2. Checking supplied accessories
It should be checked that the following accessories are
supplied with your instrument
Picture 2-1