KERN & SOHN HN-D User Manual
Sauter GmbH
Ziegelei 1
D-72336 Balingen
E-Mail: info@sauter.eu
Instruction Manual
MOBILE LEEB HARDNESS TESTER
Table of contents
Cautions
1. Summary
1.1 Measuring Principle Scope
1.2 Hardness Value „L“
1.3 Features
1.4 Applications
1.5 Primary Industries
2. Technical Specifications
3. Instrument’s views
4. Checking Supplied Accessories
5. Operation Instruction
5.1 Keys and their Functions
5.2 LCD Screeen
5.3 Settings
5.3.1 Material Type
5.3.2 Hardness Scale
5.3.3 Data in One Group
5.3.4 How to browse Data
5.3.5 Setting Date and Time
5.3.6 Calibration
5.4 The Format of Memory Data
5.5 Backlight
5.6 Automatic Shut-Off
5.7 Charging
6. Data Printing
7. Hardness Testing
7.1 Checking of Settings
7.2 Sample Preparation
8. Troubles and solutions
9. Maintenance and Service
9.1 Impact Device Maintenance
9.2 How to Store the Reports
9.3 Normal Maintenance Procedures
Appendix 1 Daily Checking
Appendix 2 Factors affecting the Accuracy
Appendix 3 Measuring Range
Applicable Standards
10. Declaration of Conformity
Cautions
Please carefully read this first
1. Any components of the instrument may not be
submerged into water or exposed to rain, which could
HN-D
Tel: +49-[0]7433- 9933-199
Fax: +49-[0]7433-9933-149
Internet: www.kern-sohn.com
cause a battery explosion ort he display might be
damaged.
2. If the instrument isn’t used for a longer period, it should
be stored in dry environment and in its original transport
case. The environmental temperature should be within the
range of -30°C up to +80°C and relative humidity from
(RH) 5% bis 95%.
1. Summary
1.1 Measuring Principle Scope
When the test is carried out, an impact body with a
tungsten carbide test tip is being impelled by spring force
against the surface to be tested, from which it rebounds.
Impact and rebound velocities are measured by the
following method: a permanent magnet integrated in the
impact body passes through a coil and induces an electric
voltage during its travel back and forth. These voltages are
proportional to the velocities and are processed and
displayed as the hardness value “L” at the instrument.
Modern electronics with power saving features provide a
long operating life.
Illustration
The big-sized LCD display always shows how the HN-D is
configured to test.
Variable function keys allow quick changes of common test
parameters. No subjective measuring errors are possible,
giving highly repeatable results. Internal self diagnostics
with error messages assure reliable test results.
Readings can be stored automatically in the internal
memory or being directly sent to a printer. PC evaluation
software enables a data analysis. These conversions to
other scales (HRC, HRB, HB, HV, HSD etc.) are
programmed into the electronics and can be shown directly
on the display as test result.
1.2 Hardness Value „L“
This term, 1978 introduced by Dr. Dietmar Leeb into
measuring technology, is the quotient fort he impact body’s
rebound and impact velocity, multiplied by 1000. Harder
materials produce higher rebound velocities than less
harder ones. With reference to a particular material group
HN-D-BA-e-1213 1
Sauter GmbH
Ziegelei 1
D-72336 Balingen
E-Mail: info@sauter.eu
Instruction Manual
( e.g. steel, aluminium etc.) the L-value represents a direct
hardness measurement and it is used as such.
Comparison curves with standard static hardness values
have been established (Brinell, Vickers, Rockwell C, B,
Shore D) for the most prevalent materials, enabling the Lvalue to be converted into the relevant values for these
procedures. With HN-D, such hardness values can be
directly displayed in the hardness scales HLD, HRC, HRB,
HB, HV, HSD.
1.3 Features
- HN-D ist he most advanced integrated tester (which
means that the impact device D is integrated): no cables
- Integrated impact direction sensor
- High accuracy (± 4 HL) in any impact direction (360°) –
automatically
- Integrated display of results for all common hardness
scales
- Large high-contrast LCD for an optimum viewing in all
conditions
-Easy calibration
- Full USB communication with PC, internal storage of data
with day and time
- Rechargeable Li-ion battery, charges through USB port
- Intelligent sleep mode
- Wireless (Bluetooth) to mini printer possible
1.4 Applications
- Convenient for all materials
- Best suited for on-site testing of heavy, big or already
installed parts
- Handy for difficult to accessor confined test locations
- Automatic sensing and compensation for impact direction
- Excellent for material selection and acceptance tests.
1.5 Primary Industries
- Metal production & processing
- Automotive & transportation
- Machinery & power plants
- Petro-chemical, refinery
- Aerospace & shipyard
- Metal constructions testing services & laboratories
- Metallproduktion und Entwicklung
2. Technical Specifications
- Indication range: 0 to 999 HLD
- Accuracy: ± 4HLD
- Measuring direction: any direction
- LCD display: 128 x 64 dot LCD with backlight
- Data memory: 500 groups
- Measurement results can be automatically converted into
HRC, HRB, HB, HV, HSD
- Impact energy: 11N
- Weight of the impact body: 5,5 g
- Impact tip: Diameter: 3mm
HN-D
Tel: +49-[0]7433- 9933-199
Fax: +49-[0]7433-9933-149
Internet: www.kern-sohn.com
Material: tungsten carbide
Hardness: ≥ 1600 HV
- Power: Li-ion rechargeable battery
- Charger: DC 5V/500mA or USB port
- Maximum continuous working time: approx. 16 hours
- Operating environment: - Temperature: -10°C to +60°C
- Humidity: 5% bis 95%
- Dimensions: 147 x 35 x 22 mm
- Weight: 63 g
3. Instrument’s views
4. Checking Supplied Accessories
You’ll have to check in advance whether you obtained all
accessories in the delivery of the HN-D. Other
accessories, not included in delivery, can be disponible at
any time by SAUTER GmbH. All items should be only used
with the original , authorized instruments. The use of these
accessories with other instruments could cause problems
and any repair costs would not be covered by warranty.
Packing list:
- Robust carrying case
- HN-D Metal hardness tester
- USB Cable
- Charger for HN-D
- Small support ring
- Cleaning brush
- Instruction Manual (CD)
-
Note: The test block is not included in the delivery!
5. Operation Instruction
5.1 Keys and their Functions
1. “Next“, select material, scale etc. can be used
HN-D-BA-e-1213 2
Sauter GmbH
Ziegelei 1
D-72336 Balingen
E-Mail: info@sauter.eu
Instruction Manual
2. Menu & Select“
3.
“Print“
„ON / OFF & Back“
4.
5. + : „Hardness Calibration“: press and hold ,
then press
mode.
+ : „Delete“: Press and hold , then press
6.
to delete the current data.
7.
+ : „Set date and time“: in shut-off state, press
and hold
8. + : „Data browse“: Press and hold , then
press
5.2 LCD Display
5.3 Settings
5.3.1 Material Type
In measurement mode, press
material character will highlight, and then press to
select the material type. It changes according to the
following sequence:
for 2 seconds to display the calibration
, then press to set date and time.
to enter data browse.
three times and the
HN-D
Tel: +49-[0]7433- 9933-199
Fax: +49-[0]7433-9933-149
Internet: www.kern-sohn.com
Illustration: highlighted Hardness Scale character
HLD= Leeb Hardness
HB= Brinell
HRB= Rockwell (B)
HRC= Rockwell (C)
HV= Vickers
HSD= Shore Hardness (D)
Note:
1. The value “---“ means „out of range“.
2. The default hardness scale is HLD.
5.3.3 Data in One Group
In measurement mode, the button
four times, the „Data in One Group“ character will be
highlighted; then
The maximum number is 9.
5.3.4 Browse Data
1. To browse the data in the current group: in
measurement mode, the button
once, the “impact time” character will be highlighted. Then
the button
current group.
2. Browse the historical data: in measurement mode,
has to be pressed and held. Then has to be pressed
to display the historical data browse mode.
has to be pressed to set the number.
has to be pressed to browse the data in the
has to be pressed
has to be pressed
Note: 1. It is necessary to select this classification. If
the material type is not known, it has to be referred to
the handbook.
2. When you change the material group, the impact
times counter will be set to “0” again.
5.3.2 Hardness Scale
In measuring mode, the button
then the hardness scale character will be highlighted. It
has to be pressed
hardness scale changes according to the following
sequence:
has to be pressed twice,
to select the hardness scale; The
By pressing the button , the next group can be selected
and by pressing the button
selected. If the button
can be browsed: By pressing the button
can be selected and by pressing the button
previous group can be selected. You can return to the
previous menu by pressing the button
Illustration: Browsing the data group:
, the previous group can be
is pressed, the selected data
, the next group
, the
.
HN-D-BA-e-1213 3
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