sauter HK-D User manual

Sauter GmbH
Ziegelei 1
D-72336 Balingen
E-Mail: [e-mail]
Tel: +49-[0]7433- 9933-199
Fax: +49-[0]7433-9933-149
Internet: www.kern-sohn.com
Instruction Manual
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MOBILE LEEB HARDNESS TESTER
1 General description
1.1 Features
LCD display of 128×64 matrix is used.
Converts to all common hardness scales (HV, HB,
HRC, HRB, HRA, HS).
English displaying and menu operating, the
operation is easy and convenient.
With RS232 interface, multiple communication
modes are adopted to meet customized
requirements of various users.
Equipped with 7 types of impact devices which need
not to be recalibrated when changing them, the
system can identify the type of impact device
automatically.
Max 600 groups（impact times: 32～1）of data can
be stored at internal non volatile data storage.
Upper and lower limit of hardness can be preset; If
the tested value exceeds the limits, alarm will be
sent out automatically to make convenient for the
requirements of batch measurements.
Back light display has been used to make
convenient for the use in poor light.
Test values software calibration function.
Material of “cast steel” is added; HB values can be
read out directly when D/DC impact device is used to
measure “cast steel” work piece.
Printer be separated from main unit and copies of
testing results can be printed as required.
Power is two of AA battery. Continuous working
period: approx. 200 h (no back light on).
Software of PC can be installed according to the
requirements of user, the function will be more
powerful to satisfy the more strict demands of quality
control and management.
1.2 Main Application and Testing Range
1.2.1 Main Application
The assembled machinery and permanently installed
parts
Die cavity of molds
Heavy work piece
Failure analysis of pressure vessel, steam turbo-
generator set and other equipment
Narrow testing space where work piece installed
Bearings and other parts
Cases which require the test result with normalized
original recording
Material identification of the metal material
warehouse
Quick tests of large range and multipoint measuring
positions for heavy work piece
1.2.2 Testing Range
Testing range see table 1 and table 2.

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Table 1
Material Hardness
method D/DC D+15 C G DL
Steel and
cast steel
HRC 17.9～68
.5
19.3～67
.9
20.0～69
.5 20.6～68 .2
HRB 59.6～99
.6 47.7～99 .9
37.0～99
.9
HRA 59.1~85.
8
HB 127～65
1 80～638 80～683 90～646 81～646
HV 83～976 80～937 80～996 80～950
HS 32.2～99
.5
33.3～99
.3
31.8～10
2.1 30.6～96 .8
Hammered
steel HB 143~650
Cold work
tool steel
HRC 20.4～67
.1
19.8～68
.2
20.7～68
.2
HV 80～898 80～935 100～94
1
Stainless
steel
HRB 46.5～10
1.7
HB 85～655
HV 85～802
Table 1
Material Hardness
method D/DC D+15 C G DL
Gray cast
iron
HRC
HB 93～334 92～326
HV
Nodular cast
iron
HRC
HB
131
～
387
127
～
364
HV
Cast
aluminum
alloys
HB
19
～
164
23
～
210
32
～
168
HRB 23.8～84.6 22.7～85.0 23.8～85.5
Brass(coppe
r-zinc
alloys)
HB 40～173
HRB 13.5～95.3
Bronze
(copper-
aluminum/c
opper-tin
alloys)
HB 60～290
Wrought
copper
alloys HB 45～315

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Table 2
No.
Material
HLD
Strength σ
b
(MPa)
1 Mild steel 350～522 374～780
2
High-carbon steel
500～710 737～1670
3
Cr steel
500～730 707～1829
4
Cr-V steel
500～750 704～1980
5
Cr-Ni steel
500～750 763～2007
6
Cr-Mo steel
500～738 721～1875
7
Cr-Ni-Mo steel
540～738 844～1933
8
Cr-Mn-Si steel
500～750 755～1993
9
Super strength steel
630～800 1180～2652
10
Stainless steel
500～710 703～1676
1.3 Types and specification
No.
Remarks
Standard Delivery
1
Main unit
1
2 D type impact device 1
3
Small supporting ring
1
Additional
Optional Delivery
1
Communication cable
with
DataView Software ATC 01
2 Printer
3+4 Nylon brush1 and 2
2. in case of choosing G type
impact device
5
Various non-conventional types of impact
devices
See table 3
6
Various non-conventional types of impact
supporting rings
See table 4
Table 3
Non conventional
impact devices
DC(D)/DL D+15 C G
Impacting energy
Mass of impact
body
11Mj
5.5g/7.2g
11mJ
7.8g
2.7mJ
3.0g
90mJ
20.0g
Test tip Hardness
Diameter of test tip
Material of test tip
1600HV
3mm
Tungsten
carbide
1600HV
3mm
Tungsten
carbide
1600HV
3mm
Tungsten
carbide
1600HV
5mm
Tungsten
carbide
I
mpact device
Diameter
Impact device
Length
Impact device
Weight
20mm
86(147)/
75mm
50g
20mm
162mm
80g
20mm
141mm
75g
30mm
254mm
250g
Max. hardness of
workpiece
940HV 940HV 1000HV 650HB
Mean roughness of
workpiece surface of
the Ra
1.6μm 1.6μm 0.4μm 6.3μm

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Min. weight of sample
Measure directly
Need support firmly
Need coupling tightly
>5kg
2～5kg
0.05～2kg
>5kg
2～5kg
0.05～2kg
>1.5kg
0.5～1.5
kg
0.02～0.
5kg
>15kg
5～15kg
0.5～5kg
Min. thickness of
sample coupling
tightly
Min.layer thickness
for surface harden
5mm
≥0.8mm
5mm
≥0.8mm
1mm
≥0.2mm
10mm
≥1.2mm
Hardn
ess
300HV
Indentation
diameter 0.54mm 0.54mm 0.38mm 1.03mm
Indentation
depth 24μm 24μm 12μm 53μm
Hardn
ess
600HV
Indentation
diameter 0.54mm 0.54mm 0.32mm 0.90mm
Indentation
depth 17μm 17μm 8μm 41μm
Hardn
ess
800HV
Indentation
diameter 0.35mm 0.35mm 0.35mm --
Indentation
depth 10μm 10μm 7μm --
Available type of
impact device
D:
General
test
DC:
Hole or
hollow-
cylindrical
test
DL:
Slender
narrow
groove or
hole test
D+15:
groove or
reentrant
surface
C:
small,
light, thin
parts or
surface
of
hardened
layer
G:
large,
thick,
heavy or
rough
surface
steel

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Table 4
No.
Sketch of
non conventional
supporting ring
Remarks
1
For testing cylindrical outside
surface
R10～R15
2
For testing cylindrical outside
surface
R14.5～R30
3
For testing cylindrical outside
surface
R25～R50
4 For testing cylindrical inside
surface
R11～R13
5
For testing cylindrical inside
surface
R12.5
～
R17
6
For testing cylindrical inside
surface
R16.5～R30
7 For testing spherical outside
surface
SR10
～
SR15
8
For testing spherical outside
surface
SR14.5
～
SR30
9
For testing spherical inside
surface
SR11～SR13
10
For testing spherical inside
surface
SR12.5～SR17
11
For testing spherical inside
surface
SR16.5
～
SR30
12
For testing cylindrical
outside surface,
radius adjustable
R10～∞
1.4 Operating conditions:
Ambient temperature: -10℃～40℃
Relative humidity: ≤90％
No vibration, no strong magnetic field and no corrosive
medium and heavy dust in ambient environment.
2 Structure features and Testing principle
2.1 Structure features
2.1.1 Hardness Tester
1: Main unit
2: Impact device
1
2

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2.1.2 Main unit
1: Shell 2: Communication socket 3: Impact device
socket 4: Keypad 5: LCD screen 6: Name plate
2.1.3 D type impact device
1 2 3 4 5 6 7
1: Release button 2: Loading sheath 3: Guide tube 4:
Coil part
5: Connection cable 6: Impact body 7: Support ring
2.1.4 Non conventional types of impact devices
DC DL C D+15 E G
2.2 Testing principle
Let an impact body whose weight is definite rush into the
surface of sample, the hardness value comes from the rate
of rebound velocity and rush velocity at 1mm distance from
testing surface. The calculation formula is following:
Fehler! Textmarke nicht definiert.HL=1000×VB/ VA
In which: HL——Leeb hardness value
VB——Rebounding velocity of the impact body
VA——Impacting velocity of the impact body
Output signal diagram of the impact device is as following.
3 Technical capabilities
3.1 Specifications
Measuring range: HLD（170～960）HLD
Measuring direction: 360°
Hardness scale: HL, HB, HRB, HRC, HRA, HV, HS
Display: LCD, 128×64 matrix LCD
Data memory: 48～600 groups （impact times: 32～1）
Range of upper and lower limit: the same as measuring
range
Working voltage: 2*1.5V
Continuous working period: approx. 200 h (no back light
on)
Communication interface: RS232
Accuracy and repeatability of displayed value, see table 5.
3.2 Dimensions, size and weight
3.2.1 Dimensions: 132×82×33mm (main unit)
3.2.2 Weight: approx. 0.6kg (main unit);
Table 5
No.
Type
of
impact
device
hardness value
of standard
Leeb
hardness block
Error of
displayed
value
Repeatability
of displayed
value
1 D
760±30HLD
530±40HLD
±6 HLD
±10 HLD
6 HLD
10 HLD
2 DC 760±30HLDC
530±40HLDC
±6 HLDC
±10
HLDC
6 HLD
10 HLD
3 DL
878±30HLDL
736±40HLDL
±12 HLDL 12 HLDL
4 D+15
766±30HLD+15
544±40HLD+15
±12
HLD+15
12 HLD+15
5 G
590±40HLG
500±40HLG
±12 HLG 12 HLG
6 E
725±30HLE
508±40HLE
±12 HLE 12 HLE
7 C
822±30HLC
590±40HLC
±12 HLC 12 HLC
4 Testing
4.1 Preparation and Inspection prior to testing
4.1.1 The preparation of work piece surface
The preparation for work piece surface should comply with
the relevant requirements specified in table 3
During the preparation for sample, the affect to surface
hardness of sample caused by overheating, cold
processing and etc. should be avoided as far as possible.
If the surface to be tested is too rough, measuring error will
appear. So the surface of the sample must have metallic
luster and the surface must be flat, smooth and have no oil
dirt.
Curved surface: it is better that the testing surface of work
piece is plane. When the curvature radius R of the curved
surface to be tested is less than 30mm (for D, DC, D + 15,
C, E and DL type impact device) and less than 50mm (for
G type impact device), a small support ring or non
conventional support ring should be used.
4
2
1
6
3
5

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work piece supporting
—— Support is not necessary for heavy test work piece
—— The work piece with medium weight must be placed
on flat and solid plane, and it must be placed stably without
any shaking.
Enough thickness of work piece is necessary, and the min.
thickness should comply with the specification in table 3.
As for test piece with hardened surface layer, the depth of
hardened layer should comply with table 3.
Coupling
——The work piece with lightweight must be firmly coupled
with the support; both coupled surface must be flat,
smooth and the coupling agent should not be too much.
The measuring direction must be vertical to the coupled
surface.
——When the work piece is a large area plate, long rod or
bending piece, it can be deformed and become unstable
even the weight and the thickness is heavy and the test
value may not be accurate. So it should be reinforced or
supported at the back of the work piece.
Self magnetism of work piece should be less than 30
Gauß.
4.1.2 System setting of tester
Specific procedures for setting, refers to 6.9.
4.1.3 Measuring condition setting of tester
Specific procedures for setting, refers to 6.5.
4.2 Testing
A standard hardness block should be used to check the
tester prior to the testing; and the reading value error and
repeatability should not be more than the specification in
table 5.
Note: the hardness value of standard hardness test
block can be measured via a Leeb hardness tester
which had been calibrated; five measurements
should be carried out in direction of vertical down
and the arithmetic mean of these five values should
be used as the hardness value of standard hardness
test block. If the value exceeds the standard range, it
can be calibrated via user calibration function.
4.2.1 Start-up
Insert the impact device plug into the socket of impact
device located on the right of the tester.
Press key to turn on the power, then the tester enters
into the measuring state.
4.2.2 Loading
Push down the loading sheath to lock the impact body; for
DC type impact device, the loading bar can be attracted on
testing surface and insert DC type impact device into
loading bar until the stop position, then loading has been
finished.
Press tightly the support ring of impact device on the
surface of test sample, the direction of impact should be
vertical with testing surface.
4.2.3 Testing
Press down the release button on the top of the impact
device to make a test. At this point, the test sample, impact
device and the operator are all required to be stable; and
the force direction should comply with the axis of the
impact device.
Five measurements should be carried out per measuring
position of test sample. The divergence of data should be
not exceeds ±15HL of mean value.
Distance between any two indentations, or the distance
between any indentation centre and the edge of test
sample should be in accordance with the specification of
table 6.
For any special material, a comparative test must be
performed to obtain relevant conversion relation if Leeb
hardness value accurately conversing to other type of
hardness value is required. Procedures are as following:
tests are made on the same test sample via Leeb
hardness tester which recalibrated well and relevant
hardness meter respectively; for each hardness value, five
points which uniformly distributed around hardness
indentation should be chosen to make tests, and tests for
three (at least) indentations should be made; the mean
value of Leeb hardness and the mean value of relevant
hardness will be act as relevant values respectively to
make a comparative hardness curve. Three groups
corresponding data should be included at least in
comparative curve.
Table 6
Type of
impact
device
The distance of
two
indentations
center
The distance
between
indentation center
and edge of test
piece
No less than
No less than
D
、DC
3
5
DL
3
5
D+15
3
5
G
4
8
C 2 4
4.2.4 Read measured value
4.2.5 Print out the measuring result
For specific setting method, see 6.3.3 and 6.6.
4.2.6 Press key to turn off
4.2. 7 The processing of testing results
The mean value of five valid testing points can be served
as a testing data of Leeb hardness.
4.2.8 Expression of testing results
Hardness value will be displayed ahead of HL (the symbol
of Leeb Hardness), and type of impact device will be
displayed back of HL. For example, 700HLD expresses
that the Leeb hardness is 700 by means of the
measurement made by D type impact device.
For other type hardness which changed from Leeb
Hardness value, corresponding hardness symbol should
be added ahead of Leeb hardness symbol. For example,
400HVHLD expresses that the Vickers hardness value is

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400, which changed from Leeb hardness value measured
by D type impact device.
Note: HL values which measured by various impact
devices are various. For example: 700HLD≠700HLC.
5 Special prompts
Replacing impact device must be performed under the
condition of turn off, otherwise the impact device type can
not be identified automatically, and even it is possible to
cause the damage of circuit board of the tester.
In normal conditions, the current measured value can be
printed or stored if the 【Impact times】value which had
been set is not satisfying. If the printing and storing are
required at this point, 【Average】key can be pressed to
finish measurement, then printing can be carried out.
The functions of 【Auto Save】, 【Auto Print】, and 【Auto
Trans.】will be inactive in case of pressing【Average】key
to finish measurement in advance.
Only D and DC type impact device have strength
measuring function so that 【Hard/σb】setting can not be
changed if other types of impact devices are used; if the
setting has been changed into 【σb】via D/DC type impact
devices, the 【Hard/σb】setting will be changed into
【Hard】when other impact devices had been installed
instead of D/DC type impact device.
When 【σb】has been set, hardness scale will not been
set (cursor will skip off 【Hardness Scale】).
Not all materials can be changed into every hardness
scale, hardness scale will return to Leed hardness (HL)
automatically after material has been changed. So
【Material】will be set firstly when setting measurement
parameters, and 【Hardness Scale】should be set
subsequently.
6 Detail Testing procedures
6.1 Start-up
Press key to turn on the equipment, following interface
will be displayed.
Tester will check and display the type of impact device. At
this point carefully observe whether the type is right or not,
then enter the main measuring display interface.
6.2 Turn On or turn off
Tester can be turn on or turn off by press key in any
display status.
6.3 Testing
The tester will enter the main display interface after turn
on, as the following figure
The measured values are displayed with big font in this
interface, and multiple shortcut key operation functions
supplied.
6.3.1 Explanation of the main display interface
Battery information: displaying rest capacity when no
charging, and displaying charging degree when charging.
Impact direction: current impact direction.
Average value indicator: average value will be displayed
when impact times setting has been achieved.
Hardness scale: the hardness scale of current measuring
value.
Measured value: current single measured value (without
average value indicator), current average value (with
average value indicator). It expresses the value is more
than conversion or measuring range when is displayed;
and it expresses the value is lower than conversion or
measuring range when is displayed.
Material: material that has been set currently.
Impact times: impact times that has been finished will be
displayed when measuring; Impact times that has been set
will be displayed when impact times is been set by shortcut
key, and the times which corresponding to single
measured value will be displayed when viewing single
measured value.
6.3.2 Testing procedures
Testing can be carried out under this interface status, and
the current measured value will be displayed whenever
one measurement is finished. The counting of impact times
will add 1 per measurement is performed. The buzzer will
send out a long sound provided that the value exceeds
tolerance limit; and the buzzer will send out two short
sounds if the impact times which has been set is achieved.
After 2 seconds waiting, average value will be displayed
with a short sound given out by buzzer.
6.3.3 Key operation
Press 【SAVE】key to save current group data. The key
can only be active after average value has been displayed;
furthermore the save can be done only once.
Press 【DELETE】key, the latest single measured value
can be deleted, but the deletion should be confirmed in the
following interface.

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Press the or key to move the cursor to 【YES .
Then press the 【ENTER】key to confirm the deletion of
the latest single measured value.
Press the or key to move the cursor to【NO】.
Then press the 【ENTER】key to cancel the deletion.
Deletion can be also cancelled by pressing the 【ESC】key
wherever the cursor is located.
Single measured value can be viewed by press 【】or
【】key, and the average value or latest measured
value can be showed again by press 【ESC】key. The
viewing sequence is different by press【】or 【 】
key.
Measurement can be finished by press 【Average】key in
case of impact times setting has not been achieved, and
the average value will be displayed.
LCD back light can be turn on or off by press 【】key.
Press 【MENU】or 【ENTER】key to return to main
interface.
Press 【MENU】key to enter main menu interface.
Shortcut key setting:
Impact direction setting can be changed by press
【DIREC.】key.
Impact times setting can be changed by press 【TIMES】
key, the current impact times can be showed by press
【TIMES】at the first time; the counting will add 1 when
press 【TIMES】once, and it will return to 1 if times of 32
is achieved.
Hardness scale setting can be changed by press
【HARD】key. Whenever press the key once, a circulating
conversion among all hardness scales that available to
current material and impact device will be performed. The
hardness scale will be changed into Leeb hardness if the
current setting is strength measurement.
Material setting can be changed by press 【MAT’L】key.
Whenever press the key once, the circulating conversion
among all material setting will be performed, and hardness
scale will be changed into Leeb hardness, therefore,
material should be set firstly when measuring, then
hardness scale should be set.
Note: what is called “conversion” refers to the
corresponding relationship of Leeb Hardness and
other hardness for a certain material, which
established on basis of abundant tests. According to
the conversion relationship, the Leeb hardness value
which measured will be changed into other hardness
scale value automatically via calculating by hardness
tester.
6.4 Menu structure diagram
The parameter setting and additional function of equipment
can both realized by menu operating. At the main display
interface, pressing 【MENU】key to enter the main menu.
6.5 Measuring condition setting
When you are in main display interface, press【MENU】
key to enter the main menu.
Press 【ENTER】key to enter 【TEST Set】menu. Press
【】【 】key to move cursor to the item which will be
set, then press 【ENTER】key.
Note: 1. If the 【 Hard/σb 】 is set to 【 Hard 】 , hardness
scale could not be selected obviously. Therefore, the
cursor will skip over the item
【 Hardness 】 while
moving.
2. Only D/DC type impact device is provided with the
function of strength measuring, therefore, cursor can
not be moved to item
【 Hard/σb 】 when other type of
impact device is used.
3. The symbol ↓ on the left bottom of menu shows the
menu is not end, which can be paged down by press
【】key; The symbol ↑ on the top of menu shows
the menu is not end, which can be paged up by press
【】.

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6.5.1 Impact direction setting
Press or key to move cursor to the direction
which will be set.
Press 【ENTER】key to finish the change.
Press 【ESC】key to cancel the change.
6.5.2 Mean times setting
The mean times can be modified in the range of 1～32.
Press number key to input the value, and the cursor can
move in circles to right automatically.
Press 【ENTER】key to finish the change. Press
【ESC】key to cancel the change.
6.5.3 Material setting
6.5.3.1 Following available materials will be displayed
in case of 【Hard/σb】is set to【Hard】:
Press 【】or 【 】 key to move cursor to the material
which will be set.
Press 【ENTER】key to finish the change.
Press 【ESC】key to cancel the change.
Note: 1. After the material setting had been changed,
hardness scale setting will return to HL automatically.
2. Material should be chosen prior to the hardness
scale.
3. The symbol ↓ on the left bottom of menu shows the
menu is not end, which can be paged down by press
【】key; The symbol ↑ on the top of menu shows the
menu is not end, which can be paged up by pressing
【】.
6.5.3.2 Following available materials will be displayed
in case of 【Hard/σb】is set to【σb】:
Press 【】【 】key to move cursor to the material
which will be set.
Press 【ENTER】key to finish the change.
Press 【ESC】key to cancel the change.
Note 1: The symbol ↓ on the left bottom of menu
shows the menu is not end, which can be paged down
by press 【】key; The symbol ↑ on the top of menu
shows the menu is not end, which can be paged up by
press 【】.
6.5.4 Hardness scale setting
Press 【】【 】or【】【 】key to move cursor
to the hardness scale which will be set.
Press 【ENTER】key to finish the change.
Press 【ESC】key to cancel the change.
Note:
1. For the current selected impact device and material,
only the hardness scale which can be conversed will
be displayed; hardness which can be conversed will
not be displayed.
2. Material should be chosen prior to the hardness
scale.
3. After the material setting had been changed,
hardness scale setting will return to HL.
6.5.5 Tolerance limit setting
Press number key to input the value, and the cursor can
move in circles to right automatically.
Press 【ENTER】key to finish the change.
Press 【ESC】key to cancel the change.
Note: 1. If the setting exceeds the measuring range,
the tester will ask operator to reset.
2. Exchanging will be done automatically if the Min.
tolerance limit is more than Max. tolerance limit.

Sauter GmbH
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D-72336 Balingen
E-Mail: [e-mail]
Tel: +49-[0]7433- 9933-199
Fax: +49-[0]7433-9933-149
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6.5.6 Hardness/σbsetting
Press 【ENTER】key to perform the selection between
【Hard/σb】, and the cursor will exchange between
hardness and strength.
Note: Only D/DC type impact device is provided with
the function of strength measuring. Therefore, the item
can only be set to
【 Hard 】 if the impact device is not D
or DC type.
6.6 Print function
If it is in main display interface, press 【MENU】key to
enter main menu.
Press【】or【 】 key to move cursor to 【Print
Function】.
Press 【ENTER】key to enter 【Print Function】menu.
Press 【】or【 】 key to move the cursor to the print
function required, then press 【ENTER】to print.
6.6.1 Printing current value
Note: Information about serial number and operator
should be filled by manual.
6.6.2 Print Memory value
As for 【Print Memory】, the group range is necessary to
be selected firstly, and the group range which saved in
memory will be displayed at the same time.
Press number key to input the value, and the cursor can
move in circles to right automatically.
Press 【ENTER】key to confirm print.
Press 【ESC】key to cancel print.
Information to be printed includes: tester name, date, type
of impact device, impact direction, average times, material,
group No., single measured value and average value.
If the information in the group is as the same as that in the
previous group, such as date, type of impact device,
impact direction, average times, material and hardness
scale, only group No., single measured value and average
value can be printed, otherwise date and measuring
conditions can also be printed out.
Note: 1. Actual number of groups will be printed in
case of the number which had been set exceeds the
actual range.
2. No difference for the sequence to print the starting
and ending group, that is to say if 1~5 groups will be
printed, the sequence can be set from 1 to 5 or from 5
to 1.
3. Wider the range of groups, shows the nearer the
group from current; on the contrary, it will be further.
6.6.3 Print all memory
Press 【Print All Mem】key to print the values of all groups
in the memory in the same format.
6.7 Memory manager
When in the main display interface, press 【MENU】key to
enter the main menu.
Press 【】or【 】 key to move the cursor to 【Memory
Manager】.
Press 【ENTER】key to enter menu 【Memory Manager】.
If no data in the memory, “No Memory!” will be showed,
and return subsequently.

Sauter GmbH
Ziegelei 1
D-72336 Balingen
E-Mail: [e-mail]
Tel: +49-[0]7433- 9933-199
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Press 【】or【 】 key to move the cursor to the
function required, then press 【ENTER】key.
6.7.1 Viewing from the No.1 group/ Viewing from the
end group
Press 【View from No.1】key to display data in memory
from the No.1 group.
Press 【View from End】key to display data in memory
from the end group.
6.7.2 Viewing from selected group
Press 【View from No.】key, selecting interface will be
displayed
Press number key to input the value.
Press 【ENTER】key to display data in memory from the
starting group selected.
Press 【ESC】key to cancel operation.
6.7.3 Transferring data
Press 【Transfer】key to output the data in memory via
RS232 interface in text format.
6.7.4 Deleting selected group
Press 【Delete by No.】key, an interface including group
range to be deleted will be shown.
Press number key to input digital value.
Press 【Enter】key to cancel selected group.
Press 【Esc】key to cancel the operation.
Note: 1. If the input group number exceeds the actual
range, then deletes the actual group among them.
2. No difference for the sequence to the starting and
ending group, that is to say if 1~5 groups will be
deleted, the sequence can be set from 1 to 5 or from 5
to 1.
3. Data group No. saved in memory will be reordered
after deletion.
4. When deleting data, especially small group data,
because the following data needs to be moved, max 30
seconds (approx.) may be required. Never to turn off
power at this time, or data confusion can be caused.
6.7.5 Delete all
Press 【Delete All】to cancel all data in memory.
6.7.6 Confirm deletion
Confirming interface will be displayed when deleting data
in memory.
Press 【】【 】key to move cursor to 【YES】,
then press 【ENTER】key to delete the data.
Press 【】【 】key to move cursor to 【NO】, then
press 【ENTER】key to cancel the operation.
6.8 Viewing interface
The No., dates and average values of 8 data groups can
be displayed at most in the same interface.
Press【】or 【 】 key to turn over pages.
Press 【ESC】key to exit view.
By pressing 【ENTER】key, cursor will be shown and
furthermore details can be viewed.
Press 【】or 【 】 key to select the group in this
interface.
Press 【ESC】key to return to the previous viewing
interface.
Press 【ENTER】key to view detail information in this
group.
Press 【】or 【 】 key to turn over pages to view
average value, measuring condition or single measured
value.
Press 【ESC】key to return to the previous viewing
interface.
6.9 System Set
When in the main display interface, press 【ESC】key to
enter the main menu.

Sauter GmbH
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E-Mail: [e-mail]
Tel: +49-[0]7433- 9933-199
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Press 【】or 【 】 key to move cursor to【System
Set】.
Press 【ENTER】key to enter 【System Set】menu. Press
【】or 【 】 key to move cursor to the item to be set.
Press 【ENTER】key to directly change, or enter
corresponding changing interface.
Press 【ESC】key to return.
As for the items of 【Auto Save】, 【Auto Print】, 【Auto
Delete】, 【Auto Trans.】, 【Key Sound】and 【Warn.
Sound】, 【ENTER】key can be pressed to selected
【On】or 【Off】.
If 【Auto Save】is set to 【On】, the current group data can
be saved automatically after measurement is finished and
the average value is displayed.
If 【Auto Print】is set to 【On】, the current data can be
printed out after measurement is finished and the average
value is displayed.
If 【Auto Delete】is set to 【On】, gross error can be
deleted automatically when average times had been
achieved or measurement had been finished in advance
by pressing 【AVE.】key according to 3бrule. If some data
had been cancelled, additional measurements should be
carried out to satisfy the times set.
If 【Auto Trans.】is set to 【On】, the current group data
can be output in text format via RS232 after measuring
finished and average value displayed.
If 【Key Sound】is set to 【On】, buzzer will send out a
short sound with each pressing.
If 【Warn. Sound】is set to【On】, buzzer will send out a
long sound in case of measured value exceeds the
tolerance limit, data deletion or other things.
If 【Auto Down】is set to 【On】, Power will turn off if
neither measurement nor any key operation is performed
within 5 minutes.
6.9.1 LCD brightness Set
Press 【】key to increase brightness.
Press 【】key to reduce brightness.
Press 【ENTER】key to finish change.
Press 【ESC】key to cancel change.
The brighter of brightness, the deeper the colour; The
darker of brightness, the lighter the colour;
6.9.2 Time and Date Set
When in this interface, current time and date will be
displayed on the screen, the format is “mm/dd/yy”.
Press 【】or 【 】 key to input the value, Press
【】or【】key to move cursor.
Press 【ENTER】key to finish the change, which current
time and date will be replaced by time and date set. Press
【ESC】key to cancel the change.
6.10 About software
When in the main display interface, press 【MENU】key to
enter the main menu.
Press 【】or 【 】 key to move cursor to 【About
Software】.
Press 【ENTER】key to enter 【About Software】.
Information about the tester and embedded software will
be displayed on this interface.
The software version and embedded software identification
are subjected to change due to the upgrading of software
without notifying in advance.
6.11 Calibration of the Tester
The tester and impact device must be calibrated with a
standard Leeb hardness test block (not included in
delivery) prior to the first use, or reusing after a long term
idle.
One time calibration is enough for each type of impact
device which equipped with a main unit; recalibration is not
necessary after the replacement of impact device later.
Press 【ENTER】key as well as key at the same time to
enter the interface of software calibration
Impact direction should be set to 【】.
Five points should be measured vertically down on the
Leeb hardness test block.

Sauter GmbH
Ziegelei 1
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E-Mail: [e-mail]
Tel: +49-[0]7433- 9933-199
Fax: +49-[0]7433-9933-149
Internet: www.kern-sohn.com
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Average value will be showed after measuring.
Press 【】or 【 】 】 key to input nominal value.
Press 【ENTER】key to finish calibration.
Press 【ESC】key to cancel calibration.
Calibration range is ±15HL.
6.12 Back light
The LCD display is equipped with a Led Back Light, which
supplied for easily use in dark light conditions. The Back
Light can be turned on or turned off by pressing 【】at
any time when the tester is in operation.
6.13 Turn off the power automatically
Auto turn off function is supplied to save the energy of
battery.
If neither measurement nor any key operation is performed
within 5 minutes, the tester will turn off automatically, a
flash showing for 20 seconds on the LCD screen prior to
switch off. At this time, any key except can be pressed
to stop the flash of LCD screen, and cancel the turn off
operation.
In case of too low battery voltage, “Battery Empty!” will be
displayed and turn off automatically.
6.14 Battery replacement
Battery symbol will flash if battery capacity runs out.
At this point, User can replace the damaged battery
according to the following procedures.
Turn off the Power of main unit.
Unscrew the screw. Remove the battery cover, take out
used batteries.
Install the new batteries in their place (pay attention to
orientation of batteries, take caution not to connect the
anode and cathode inversely).
Put back the battery cover, then turn on the power to
check if the tester is in normal operation or not.
6.15 The connection of data communication cable
The small 4-pin plug which located on the end of
communication cable should be inserted in the RS232
socket on the left side of main unit, and D type 9-pin
RS232 port 9-pin port should be inserted in PC
communication or the serial port printer case.
7 Trouble shooting
Failure
Cause
Solution
Failure in
starting Battery empty Replace battery
No measuring
value Sensor cable
open circuit
Replace Probe
cable
Value is
inaccurate
Calibration data
lose
over again
Calibration
8 Maintenance
8.1 Impact device
After using the impact device for 1000-2000 times, use the
nylon brush, optional available, to clean the guide tube and
the impact body of the impact device. To clean the guide
tube, unscrew the support ring and then take out the
impact body, spiral the nylon brush in the counter-clock
direction into the guide tube. When the brush reaches the
bottom, draw it out. Repeat this action for 5 times and
mount the impact body and the support ring.
Remember to release the impact body after use.
Any lubricating agent is absolutely banned to use inside
the impact device.
8.2 Standard maintenance procedures
If the error is >2HRC when using standard Rockwell
hardness block to test, maybe the test tip is disabled.
Changing the test tip or impact body should be considered.
If other abnormal phenomena occur, user should not
disassemble or adjust any part which used for fixing. You
can return the hardness tester to the service department of
our company.
9. Notice of Transportation and Storage.
The tester should be stored in room temperature, away
from vibration, strong magnetic field, corrosive medium,
dampness and dust.
10. Non-warranty parts
1 Sheath of Main unit 2 Panel 3 Impact body
4 Support ring 5 Sensor cable 6. Battery.
Leeb Hardness Tester
Packing List
No Appellation Num
1
Main unit
1
2
D type impact device
1
3
Small supporting ring
1
6
Instruction Manual
1
7
Carrying case
1
8
Screwdriver
1
9
10
Communication cable
Optional
11
DataView Software ATC 01
Optional
12 AA battery Optional
13
Printer
Optional
14
Printer cable
Optional

Sauter GmbH
Ziegelei 1
D-72336 Balingen
E-Mail: [e-mail]
Tel: +49-[0]7433- 9933-199
Fax: +49-[0]7433-9933-149
Internet: www.kern-sohn.com
Instruction Manual
HK-D
HK-D-BA-e-1311 15
11. Declaration of Conformity