sauter HK-D User manual

Sauter GmbH
Ziegelei 1
D-72336 Balingen
e-mail: [e-mail]
Phone : +49-[0]7433- 9933-0
Fax: +49-[0]7433-9933-149
Internet: www.sauter.eu
Instruction manual mobile Leeb
hardness tester
SAUTER HK-D/HK-DB
Version 2.0
04/2020
GB
HK-D_HK-DB-BA-e-2020
PROFESSIONAL MEASURING

2 HK-D_HK-DB-BA-e-2020
GB
SAUTER HK-D/HK-DB
V. 2.0 04/2020
Instruction manual mobile Leeb hardness tester
Thank you for purchasing the digital Leeb hardness tester from SAUTER. We hope
you will be very satisfied with the high quality of the hardness tester and its extensive
functionality. For any questions, wishes and suggestions please do not hesitate to
contact us.
Table of contents:
1Before commissioning.................................................................................. 4
2General description....................................................................................... 4
2.1 Special features:....................................................................................................................... 4
2.2 General application and test area........................................................................................... 5
2.3 Scope of delivery and optionally available accessories ...................................................... 7
2.4 Working conditions.................................................................................................................. 9
3Structural characteristics and test principle............................................... 9
3.1 Tree features (device view) ..................................................................................................... 9
3.2 The LEEB test principle ......................................................................................................... 11
4Technical data.............................................................................................. 11
5Testing.......................................................................................................... 12
5.1 Preparing and checking the supplied accessories............................................................. 12
5.2 Test procedure........................................................................................................................ 13
6Special Operating Instructions................................................................... 16
7Detailed test procedure description........................................................... 16
7.1 Commissioning....................................................................................................................... 16
7.2 Switching on and off.............................................................................................................. 16
7.3 Testing..................................................................................................................................... 17
7.4 Menu- Structure Diagram ...................................................................................................... 19
7.5 Setting the measuring conditions ........................................................................................ 19
7.6 Setting Print ............................................................................................................................ 23
7.7 Storage Management ............................................................................................................. 25
7.8 Browse stored data groups................................................................................................... 27
7.9 System settings...................................................................................................................... 28
7.10 About the software................................................................................................................. 29
7.11 Calibration / Adjustment........................................................................................................ 30
7.12 Backlit display ........................................................................................................................ 31
7.13 Automatic switch-off.............................................................................................................. 31
7.14 Battery replacement............................................................................................................... 31
7.15 Connection with the data transmission cable..................................................................... 31
8Error analysis & troubleshooting............................................................... 31
9Service and maintenance............................................................................ 32

HK-D_HK-DB-BA-e-2020 3
10 Notes on transport and storage conditions .............................................. 32
11 Parts subject to wear and tear, which are not covered by the scope of
warranty................................................................................................................... 32
12 https://www.kern-sohn.com/shop/de/DOWNLOADS/ ............................... 33

4 HK-D_HK-DB-BA-e-2020
1 Before commissioning
Before putting the device into operation, check the delivery for any transport damage
to the packaging, the plastic case and the device itself. Should this be the case,
SAUTER must be contacted immediately.
Precautions
1. the complete device must not be immersed in water or exposed to rain, which could
cause unforeseeable damage, the battery or the display could be destroyed
2. if the device is not used for a longer period of time, it should be stored in a dry and
cool place, preferably in its original packaging. The ambient temperature should be in
the range of -30°C to +80°C and relative humidity (RH) 5% to 95%.
2 General description
2.1 Special features:
- Large screen (128 x 64 LCD), which displays all functions and parameters.
- Direct indication and conversion into the hardness scales HRA, HRB, HRC, HV, HB,
HS.
- The menu appears in English, the hardness tester is easy and convenient to use.
- USB interface included, multiple communication options are possible to meet the
customer specific requirements of different users.
- Seven rebound sensors are available for special applications. These do not need to
be recalibrated after replacement, the system has an automatic type recognition of the
rebound sensors.
- Large memory capacity; can store more than 600 measurement groups (number of
rebounds: 32~1) in the internal non-volatile measurement memory.
- The upper and lower limits can be preset. Automatic alarm is triggered when the
measurement result exceeds the preset limit.
- The backlit display makes working even in less illuminated environments pleasant.
- It has a test result software calibration function
- The material "cast steel" has been added; the HB values can be read directly when
the D/DC rebound sensor is used to measure a material sample of "cast steel".
- The printer is separate from the main unit and allows copies of the test results to be
printed if required.
- The power supply is provided by 2 x AA batteries.
The continuous working time is up to 200 hours with the display lighting switched off.
- The software for the PC can be installed according to the user's requirements. This
function will become more and more important in view of the ever-increasing demands
on quality control and management.

HK-D_HK-DB-BA-e-2020 5
2.2 General application and test area
General application
•for assembled machine parts and permanently installed parts
•Measuring at recesses of moulded parts
•Heavy work objects
•Fault analysis of pressure boilers, steam generators and other equipment
•In a narrow, difficult to access test area where the work item is installed
•Guide bearings and other parts
•Material identification of the metal type
Fast tests on a large scale and various measuring positions for heavy work objects
Test area
Table 1
Material
Hardnes
s
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
127～651
80～638
80～683
90～646
81～646
AGM
83～976
80～937
80～996
80～950
HS
32.2～99.5
33.3～99.3
31.8～102.1
30.6～96.8
Hammered
steel
HB
143~650
Cold
Working-
Tools-
steel
HRC
20.4～67.1
19.8～68.2
20.7～68.2
AGM
80～898
80～935
100～941
Stainless
steel
HRB
46.5～101.7
HB
85～655
AGM
85～802

6 HK-D_HK-DB-BA-e-2020
Grey cast
iron
HRC
HB
93～334
92～326
AGM
Ductile Cast
Iron
HRC
HB
131～387
127～364
AGM
Aluminium
casting
alloys
HB
19～164
23～210
32～168
HRB
23.8～84.6
22.7～85.0
23.8～85.5
Brass
(copper-
Zinc alloys
HB
40～173
HRB
13.5～95.3
Bronze (Ku-
Alu/ Ku-Zinc
alloy)
HB
60～290
Wrought
copper alloy
HB
45～315
Table 2
No.
Material
HLD
Strength σb(MPa)
1
Structural 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
High strength steel
630～800
1180～2652
10
Stainless steel
500～710
703～1676

HK-D_HK-DB-BA-e-2020 7
2.3 Scope of delivery and optionally available accessories
No.
Notes
Standard
scope of
delivery
1
Display unit
1
2
D-type rebound body
1
3
Small stabilizing ring
1
4
Cleaning brush
1
5
Screwdriver
1
6
Hardness test block
1
Only for HK-DB
7
Interface cable
1
Optional
8
Software
9
Various other rebound
sensors
See
Table 3
10
Different types of support
rings
See table 4
Table 3
Type of rebound sensor
DC(D)/DL
D+15
C
G
Rebound energy
Mass of the rebounding
body
11mJ
5.5g/7.2g
11mJ
7.8g
2.7mJ
3.0g
90mJ
20.0g
Tough test tip:
Diameter hardness test tip:
Material of the hardness
test tip:
1600HV
3mm
Tungsten-
carbide
1600HV
3mm
Tungsten-
carbide
1600HV
3mm
Tungsten-
carbide
1600HV
5mm
Tungsten-
carbide
Diameter rebound sensor:
Length rebound sensor:
Weight rebound sensor:
20mm
86(147)/75mm
50g
20mm
162mm
80g
20mm
141mm
75g
30mm
254mm
250g
Max. Hardness of the
pattern
940HV
940HV
1000HV
650HB
Ra:General roughness
value of the
Sample surface
1.6μm
1.6μm
0.4μm
6.3μm
Minimum weight of the
sample:
For direct measurement
With fixed support
With fixed coupling
>5kg
2～5kg
0.05～2kg
> 5kg
2～5kg
0.05～2kg
> 1.5kg
0.5～1.5kg
0.02～0.5kg
> 15kg
5～15kg
0.5～5kg

8 HK-D_HK-DB-BA-e-2020
Min. strength d. Pattern with
fixed coupling
Min. coating thickness at
Surface hardening
5mm
≥0.8mm
5mm
≥0.8mm
1mm
≥0.2mm
10mm
≥1.2mm
Hardness
300HV
Penetration
diameter
Penetration
depth
0.54mm
24μm
0.54mm
24μm
0.38mm
12μm
Hardness
600HV
Penetration
diameter
Penetration
depth
0.54mm
17μm
0.54mm
17μm
0.32mm
8μm
Hardness
800HV
Intruder
Diameter
Penetration
depth
0.35mm
10μm
0.35mm
10μm
0.35mm
7μm
Available types of
Rebound sensors
D: General
tests
DC:tests holes
or cylindrical
cavities
DL:tests
slender or
narrow hollows
or holes
D+15: tests
grooves or
furrows
(sinks)
C: tests
small, light,
thin parts and
surfaces of
hardened
coatings
G:
Tests large,
thick, heavy
or rough
steel
surfaces
Table 4, as an option: various support rings
No.
Rupture of non-
conventional
stabilising rings
Notes
1
For testing cylindrical outer surfaces
R10～R15
2
For testing cylindrical outer surfaces
R14.5～R30
3
For testing cylindrical outer surfaces
R25～R50
4
For testing cylindrical inner surfaces
R11～R13
5
For testing cylindrical inner surfaces
R12.5～R17

HK-D_HK-DB-BA-e-2020 9
6
For testing cylindrical inner surfaces
R16.5～R30
7
For testing spherical outer surfaces
SR10～SR15
8
For testing spherical outer surfaces
SR14.5～SR30
9
For testing spherical inner surfaces
SR11～SR13
10
For testing spherical inner surfaces
SR12.5～SR17
11
For testing spherical inner surfaces
SR16.5～SR30
12
For testing cylindrical outer surfaces Radius is
adjustable R10～∞
2.4 Working conditions
Temperatures: -10°C to +40°C
Relative air humidity: ≤ 90%
The device should not be exposed to vibrations, strong magnetic fields, corrosive
agents and strong dust in the environment.
3 Structural characteristics and test principle
3.1 Structural characteristics and test principle (device view)
The endurance tester
Display unit
Back-
bouncy-
sensor
1
2

10 HK-D_HK-DB-BA-e-2020
The display unit
1. Housing
2. Connection for connecting cable
3. Connection for rebound sensor
4. Control buttons
5. LCD screen
6. Key description on the back of the housing
The D-type rebound sensor
1 2 3 4 5 6 7
Different types of rebound sensors
DC DL C D+15 E G
4
2
1
6
3
5
1. Release button
2. Charging Tube
3. Guide Tube
4. Coil
5. Connection cable
6. Rebounders
7. Stabilisation ring

HK-D_HK-DB-BA-e-2020 11
3.2 The LEEB test principle
The basic principle is to use a rebound body of a specified weight, which is impacted
on the test surface using a specified test force and then the impact velocity and
rebound velocity of the rebound body are measured with the spherical test tip 1mm
above the surface to be tested.
The calculation formula is as follows:
HL= 1000 x VB/VA
HL →Leeb Hardness value
VB →Impact velocity of the impactor
VA→Rebound velocity of the rebounding body
4 Technical data
- Display range: 170 to 960 HLD
- Measuring direction: all directions possible, 360
- LCD display: (128 x 64 matrix) backlit LCD
- Data memory: 48 up to 600 measuring groups (number of rebounds: 1 to 32 each)
- Measurement results can be automatically converted into: HL, HB, HRB, HRC,
HRA, HV, HS
- Weight of the rebound body: 5,5 g
- diameter of the test tip: 3mm
- Material of the test tip: tungsten carbide
- Range for upper and lower limit value: the same as the measuring range
(170 to 960 HLD)
- operating voltage: 2*1,5V
- Continuous working time: approx. 200 hours (without display backlighting)
- Interface connection: USB
- Accuracy and repetition frequency of the displayed value, see Table 5
- Dimensions: 132 x 82 x 33 mm (display unit)
- Weight: approx. 0.6 kg (display unit)
- Ambient temperature -30°C to +80°C

12 HK-D_HK-DB-BA-e-2020
- Relative humidity (RH) 5% to 95%.
- Hardness test block of hardness 790+/- 40HL included in delivery for model HK-DB
Table 5
No
.
Type
Rebound sensor
Hardness value v.
Leeb Standard Hardness
Block
ERROR
Display value
Again-
availability
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
12HLD+15
5
G
590±40HLG
500±40HLG
±12 HLG
12 HLG
6
C
822±30HLC
590±40HLC
±12 HLC
12 HLC
5 Testing
5.1 Preparing and checking the supplied accessories
5.2 The preparation of the surface of the test piece
The preparation of the surface of the test piece should conform to the relative
requirements of Annex Table 3.
- During preparation, heating as well as cooling of the surface of the test piece should
be avoided, as this can significantly affect the hardness test measurement.
- Too much roughness of the surface to be measured can lead to incorrect
measurements (ERROR). Therefore, the surface of the test piece should be
metallically shiny, smooth and clean and free of oil residues.
- Curved surface: The best test surface is a smooth, flat surface. If the radius of
curvature R on the surface to be tested is less than 30mm (D, DC, D+15, C and DL
type rebound sensors are suitable) and less than 50mm (G type is suitable), the small
stabilising ring is used in the first case and the shaped stabilising ring in the second.

HK-D_HK-DB-BA-e-2020 13
- Weighing down the test piece: this is not necessary for heavy test pieces. Medium-
heavy objects are placed on a smooth and stable surface. The test piece should be
placed absolutely flat and without wobbling.
- A sufficient material thickness of the test piece is required, as well as the minimum
material thickness.
- As for the hardened surface coating of the test piece: the thickness of this should also
meet the requirements of Table 3.
- Coupling: Very light test pieces should be firmly coupled to a heavy base plate. Both
of these surfaces to be coupled must be flat and smooth and coupling agent may be
left behind. The rebound direction is vertical to the coupled surface. If the sample is a
large plate, long rod or bent, it may be deformed and become unstable, even though
the weight and strength are sufficient, and consequently the test values will not be
accurate. Therefore, the test piece should be reinforced or supported on its back.
- Magnetism of the test piece itself should be less than 30 Gauss.
System settings of the hardness tester
Specific procedure for the setting: see Chap.6.9
Setting the measurement conditions of the tester
Specific procedure for the setting: see Chap.6.5
5.3 Test procedure
The hardness tester should be checked with a standard hardness test block. The
ERROR value and the repeatability of the value to be read are given in Table 5 in the
Appendix.
Note: The hardness value of the standard hardness test block can be measured with
a Leeb hardness tester which has been calibrated; 5 measurements should be taken
vertically downwards. This should be used to calculate the arithmetic mean and this
can then be taken as the hardness value of the standard test block. If the value
exceeds the standard range, the instrument can be calibrated for the user using the
calibration function.
Connection sensor to display unit
- The rebound sensor plug is inserted into the socket of the rebound sensor in the
measuring instrument.
- The power button is pressed and the unit is ready for testing.
Shop
- The loading tube is pushed down to lock the rebound body in place; with the DC
Rebound Sensor, the load bar can be placed on the surface to be tested, then the DC
Rebound Sensor is inserted into the load bar until the stop position. This completes
the loading process.

14 HK-D_HK-DB-BA-e-2020
Localization
The support ring of the rebound sensor is now pressed firmly onto the surface of the
test piece, whereby the rebound direction should always be vertical to the surface to
be tested.
Testing
- For testing, the release button on the upper side of the rebound sensor is pressed. It
is assumed that the test piece as well as the device are in a fixed position at this time.
The direction of action should pass through the axis of the rebound sensor.
- Each measuring range of the test piece normallyrequires 5 individual test procedures.
The result of the measurement data scatter should be the general value of
do not exceed ± 15HL.
-The distance between two rebound points and the distance from the centre of any one
rebound point to the corner of the test piece should be as prescribed in Table 6.
- A comparative test must be carried out for each specific material to obtain the
corresponding conversion ratio if this Leeb hardness value is to be converted into the
other hardness values.
The procedure is as follows:
Tests are performed using the Leeb hardness tester (or other equivalent hardness
tester), which has been correctly recalibrated, on the same test piece.
For each hardness value 5 points should be selected for tests, which are uniformly
distributed and at least 3 indentation tests should be made for each of them; this
requires the conversion of the hardness value. The arithmetic mean value of the Leeb
hardness and the mean value of the corresponding hardness serve as relevant values
to create an individual hardness comparison curve. This curve should contain at least
three groups of correlating data in the comparison curve.

HK-D_HK-DB-BA-e-2020 15
Table 6
Type of
rebound
sensor
Distance from the centre of
the two indentations
Distance from the centre of the
indentation to the corner of the test
piece
Not less than(mm)
Not less than(mm)
D, DC
3
5
DL
3
5
D+15
3
5
G
4
8
C
2
4
Reading the measured value
Print measurement result
The special procedure is described in chapter 6.3.3 and 6.6
To switch off, press the off button
Evaluation of the test results
The mean value of 5 valid test points can be recorded as a test result of the Leeb
hardness.
What the measurement result expresses
- The hardness value appears on the display above HL (the Leeb hardness symbol).
The type of rebound sensor can be read to the right after the letters HL. For example,
700HLD means that the hardness is 700, measured with the rebound sensor D.
- For other hardness types into which Leeb hardness has been converted, the
corresponding hardness symbol should be added before the Leeb hardness symbol.
Go to
Example 400HVHLD, which states that the Vickers hardness value is 400, which was
converted from the Leeb hardness value measured with the rebound sensor D.
Important note:
HL values measured with different types of rebound sensors are different.
For example: 700 HLD does not equal 700 HLC!

16 HK-D_HK-DB-BA-e-2020
6 Special Operating Instructions
- The replacement of a rebound sensor must always be carried out with the system
switched off, otherwise the special type of rebound sensor cannot be detected
automatically afterwards. It is even possible (with the instrument switched on) to
damage the base board of the hardness tester.
- Under normal conditions, the current measured value can be printed out and stored
if the value der【Anzahl of Rückpralle】noch is not sufficient. If printing or saving is
required at this point, Taste【Average】can be pressed to terminate the
measurement. Afterwards the printout can be made.
- The functions 【Auto Save】, 【Auto Print】, and 【Auto Trans.】sind inactive if the
key 【Average】betätigt has been set to terminate the measurement in advance.
- Only the type D and DC rebound sensors have the function of measuring tensile
strength, so the default setting σb】/σb】cannot be changed if other types of rebound
sensors are used. If the presetting has been made using the D/DC rebound sensor in
【σb】gewechselt, the setting 【Hardσb】in 【Hard】will be changed if another
rebound sensor is installed (instead of the D or DC type).
- If 【σb】(tensile strength) has been preset, the hardness scale cannot be set (the
cursor skips it).
- Not all materials can be converted to every hardness scale, the hardness scale
automatically returns to Leeb hardness (HL) as soon as the material has been
changed. It must be entered 【Material】vorab when the measuring parameters are
preset and only then the hardness scale 【Hardness Scale】.
7 Detailed test procedure description
7.1 Commissioning
Press the key to switch on the hardness tester. The following is shown:
The tester checks the rebound sensor in use and shows it on the display. At this point
it should be carefully checked that it is correctly displayed, after which the main display
is shown.
7.2 Switching on and off

HK-D_HK-DB-BA-e-2020 17
The measuring instrument can be switched on or off in any display status by
pressing the button.
7.3 Testing
The hardness tester enters the main display after switching on. The following can be
seen:
The measurement result is shown in large letters on this display, as are several other
operating functions. 6.666.3.1
Instructions for the display Main display
Battery Info: The remaining capacity of the battery when not charging is displayed.
When the battery is charging, the charge level is displayed.
Rebound sensor direction: The current direction of the rebound sensor is displayed
Average value display: The average value of the test pieces is displayed as soon as
the preset rebound number is reached.
Rebound direction: the current rebound orientation is displayed
Hardness scale: Hardness scale of the current measured value
Measured value: The current measured value in single measurement mode is
displayed (without average measured value display), or the current average value is
displayed. ↑means the value is above the conversion value or measuring range.
↓bedeutet, it is below.
Material: Displays the current preset material.
Number of rebounds: Shows the number of rebounds performed individually. The
number of pre-set rebounds appears on the display as soon as it has been entered
using the shortcut key. The number of rebounds associated with the individually
measured value is shown on the display.
Procedure for testing
Measurements can now be carried out under this connection status and the current
measured value is displayed as soon as a measurement has been completed. The
digit of the rebound counter increases by one with each rebound individually
performed.
Average-
value Display
Hardness
scale
Measured
value
Battery
Info
Direction
Rebound-
sensor
Material
Number of
Rebound

18 HK-D_HK-DB-BA-e-2020
The buzzer leaves a long beep if the value is not within the tolerance limit. When the
preset number of rebounds has been reached, two short beeps will sound. After 2
seconds a short signal tone sounds and the average value is displayed.
Key function
- Use the key 【SAVE】wird to store the current measuring group in the memory. This
operation can only be carried out after the average value has appeared on the display.
In addition, this memory function can also be executed only once.
- With the key 【DEL 】wird the last single value is deleted. When this key is pressed,
the following appears on the display:
- - - - - - - - - - - - -
Confirm delete?
- - - - - - - - - - - - -
YES NO
- Pressing or key will move the cursor to nach【YES 】bewegt. Use the key
【ENTER】wird to confirm the deletion of the last individual measured value.
- Press the or key to move the cursor to nach【NO】bewegt. Pressing the key
【ENTER】wird cancels the deletion. Deleting can also be cancelled by pressing
【ESC】abgebrochen wherever the cursor is located.
- Use the keys 【 】und 【 】wird to display the individual measured value. The
average value or the last measured value can be displayed again by pressing the
【ESC】aufgezeigt key. The viewing sequence varies depending on the 【 】oder
key.
- Press the key 【AVG 】kann to end the test, even if the preset rebound number has
not yet been reached, and the average value calculated from this is displayed.
- Use the key 【 】wird to switch the LCD backlight on or off.
- Press the key 【MENU 】oder 【ENTER】gelangt to enter the main menu of the
system.
Preset of the shortcut keys:
- Use the 【DIREC】wird key to set the direction of the rebound sensor.
- Use the key 【TIMES 】wird to change the number of rebounds in a measuring
group. The current number of rebounds can be changed by first pressing the key
【TIMES 】angezeigt. Each time the Taste【TIMES】erhöht keyis pressed again, the
number of rebounds increases by plus one. The value jumps back to 1 when the
number of rebounds reaches 32.
- Change the hardness scale with the key 【HARD 】wird. Whenever this button is
pressed, a continuous conversion takes place under all existing hardness scales which
are available for the material currently under test and the corresponding rebound

HK-D_HK-DB-BA-e-2020 19
sensor. The hardness scale is converted to Leeb hardness if the current default setting
is "Tensile strength measurement".
- Use the key 【MAT'L】kann to select another material. Whenever this button is
pressed, a continuous conversion is made under all existing material settings. The
hardness scale is converted to Leeb hardness. Therefore, the material should be
entered first before measuring, and then the hardness scale is set.
Note: What is referred to here as "revaluation" refers to the corresponding
relationship of Leeb hardness and other hardnesses for a particular material,
which has been established on the basis of extensive testing. According to the
conversion relationship, the value measured in Leeb hardness is automatically
converted into other hardness scale values by means of the converter located
in the hardness tester.
7.4 Menu- Structure Diagram
Both the presetting of parameters and the additional functions are controlled via the
menu. On the main display, press the 【MENU】betätigt key to enter the main menu:
7.5 Setting the measuring conditions
On the main display of the screen, the Taste【MENU】betätigt to enter the main menu.
test set

20 HK-D_HK-DB-BA-e-2020
print function
memory manager
↓System Set
Press the key 【ENTER 】wird to enter the submenu 【TEST Set 】zu. Using the
keys 【 】und 【 】wird moves the cursor to the desired position and then
【ENTER 】gedrückt.
Note: 1. if 【Hardбb】is set to 【 Hard 】 , the hardness scale obviously could not be
selected. The cursor automatically jumps over 【 Hardness 】 when it is moved.
2. only the D and DC types of rebound sensors have the tensile strength measurement
function. Therefore, the cursor cannot be used to select the function 【 Hard /бb 】 for
other rebound sensors.
3. the arrow symbol ↓ on the lower left side of the menu and indicates that the menu
does not end yet and further submenus follow downwards These can be changed to
】 aufgezeigt by pressing 【.The symbol ↑ on the upper side of the menu and
indicates that the menu does not end yet and further submenus follow at the top. These
can become 】aufgerufen with the 【key.
Direction adjustment of the rebound sensor
Use the keys 【 】oder【】wird to move the cursor to the desired preset
of the rebound sensor.
Confirm with the key 【ENTER 】wird.
With the Taste【ESC 】kann can be canceled.
Setting the average time