MITECH MH600 User Manual

www.ponpe.com

MITECH CO., LTD.

www.mitech-ndt.com

1

[e-mail]

CONTENTS

[e-mail]

1 Introduction............................................................................................................................................................3

1.1 Features of the instrument.........................................................................................................................3

1.2 Technical specifications..............................................................................................................................4

1.3 Standards and regulations applied...........................................................................................................4

1.4 Operating conditions...................................................................................................................................4

1.5 Application examples..................................................................................................................................4

1.6 Scope of delivery...................................................................................................................................... 5

2 Product Feature.................................................................................................................................................... 5

2.1 Structure feature..........................................................................................................................................5

2.2 Impact device D...........................................................................................................................................6

2.3 Other impact devices..................................................................................................................................6

2.4 Leeb rebound principle for hardness testing.......................................................................................... 6

2.5 Screen display............................................................................................................................................. 7

2.6 Keypad.......................................................................................................................................................... 7

2.7 Measuring conditions..................................................................................................................................8

3 Startup..................................................................................................................................................................... 8

3.1 Power supply................................................................................................................................................8

3.2 Connecting the instruments.......................................................................................................................8

3.3 Starting the instrument............................................................................................................................... 8

3.4 Configuration of the standby settings...................................................................................................... 9

4 Settings................................................................................................................................................................. 10

4.1 Test settings............................................................................................................................................... 10

4.1.1 Impact device setting............................................................................................................................ 10

4.1.2 Impact direction setting......................................................................................................................... 11

4.1.3 Material setting....................................................................................................................................... 11

4.1.4 Hardness scale setting......................................................................................................................... 12

4.1.5 Hardness/Strength setting....................................................................................................................12

4.1.6 Average times setting............................................................................................................................12

4.1.7 Tolerance limit setting........................................................................................................................... 12

4.2 Memory manager......................................................................................................................................13

4.3 Base calibration (Impact device calibration).........................................................................................13

4.4 Multi-point calibration............................................................................................................................... 14

4.5 System configuration................................................................................................................................15

4.6 HLX conversion function..........................................................................................................................17

4.7 Product information...................................................................................................................................17

4.8 Replace the batteries............................................................................................................................... 18

4.9 Communication..........................................................................................................................................18

5 Operation..............................................................................................................................................................18

5.1 Preparation of the sample....................................................................................................................... 18

5.1.1 Weight and thickness of the test piece.............................................................................................. 18

5.1.2 Coupling.................................................................................................................................................. 19

5.1.3 Surface curvature of the test piece.....................................................................................................20

5.2 Triggering the impact................................................................................................................................20

5.3 Conversion Deviations............................................................................................................................. 21

6 Fault and Troubleshooting.............................................................................................................................. 22

7 Maintenance, storage and care...................................................................................................................... 22

7.1 Performance check (before each use)..................................................................................................22

7.1.1 The main unit..........................................................................................................................................22

7.1.2 Mechanical and electronic checks......................................................................................................23

7.2 Maintenance.............................................................................................................................................. 23

7.3 Transport and storage conditions...........................................................................................................23

7.4 Cleaning (after each use)........................................................................................................................ 24

7.5 Warranty..................................................................................................................................................... 24

7.6 Tips on safety.............................................................................................................................................24

Appendix..................................................................................................................................................................25

Table 1............................................................................................................................................................... 25

2

[e-mail]

Table 2............................................................................................................................................................... 26

[e-mail]

ponpe.com

Table 3............................................................................................................................................................... 27

Table 4............................................................................................................................................................... 28

User Notes............................................................................................................................................................... 29

3

[e-mail]

1 Introduction

[e-mail]

This hardness tester is designed for testing metallic materials, the hardness of which ranges from very
low to very high values. Hardness testing can be performed directly on-site and in any position. Typical
applications are large, heavy workpieces which could only be transported to a hardness testing machine
in a laboratory with great difficulty. It is especially suitable for applications in which standard indentation
hardness testing is either not feasible or not economical.
This hardness tester comprises an indicating device and an impact device. It is based on the rebound
hardness testing method according to Leeb. It is for testing the hardness of all material surfaces over a
large range of hardness quickly and independently.

1.1 Features of the instrument

The instrument represents a user-friendly microprocessor-controlled measuring system characterized by
the following benefits:

Wide measuring range

Based on the principle of Leeb rebound testing method, it can measure the hardness value of all metallic
materials. It can also measure the tensile strength of many metallic materials.

Impact device

Support seven types of impact device. Type of impact device automatically identified.

Impact direction correction

Impact direction automatically detected and corrected (after base calibration, except type G) , high
measuring accuracy in every impact direction, convenient measurement in any position.

Scale

Integrated conversion of the measured values to other popular hardness scales, e.g. HRC (Rockwell),
HRA, HRB, HV (Vickers), HB (Brinell), HS (Shore), HL (Leeb), Rm (Tensile strength for steel).

Calibration

Base calibration function and multi-point calibration function.

HLX conversion function

HLX conversion function to convert HLD values to HLC, HLG, HLDL and HLD+15, and vice versa.

Tolerance limit

Upper and lower limit can be set. It will alarm automatically when the test value exceeding the limit.

Display

Color TFT display (320×240 TFT LCD) with adjustable backlight, allow the user to work at worksites with
low visibility.

Memory

Integrated memory – Non-volatile, 500 series of measured values including each individual measured
value, mean value, testing date, impact direction, impact times, material and hardness scale etc..

Power saving

Two AA size alkaline batteries as the power source. Continuous operating period of no less than 100
hours (default brightness setting). Display Standby and Auto Power Off functions to save power.

Real time clock

The instrument clock keeps running tracking the time.

Communication

USB communication port. Online transfer of the measured data to PC or laptop via USB.

Robust design

Robust design allow the user to work at dusty worksites .

4

[e-mail]

1.2 Technical specifications

No.

Impact
Device

Hardness value of the
test block

Measuring accuracy

Measuring
Repeatability

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

 Measuring range：170 to 960 HLD

 Impact direction：360°. Auto detecting direction capability.

 Built in conversion table from(to) HLD to(from) HLC、HLG、HLDL、HLD+15

 Hardness Scale：HL、HB、HRB、HRC、HRA、HV、HS



Display：color TFT LCD，320×240 dots, adjustable backlight

 Display of mean value, minimum value and maximum value.

 Integrated data memory： 500 measurement series.

 Battery: two AA size, 1.5 Volt alkaline batteries

 Continuous operating period：about 100 hours（with default brightness）

 Communication：USB1.1; PC software is provided to transfer data between the instrument and PC.

 Multiple display languages (English, Chinese, etc.).

 Weight: Approximately 220g.

 Dimensions：150mm×76mm×38mm.

˗ Hardness tests on already assembled machines or steel and cast constructions; e.g. on heavy and

˗ Rapid testing at many measuring points to examine the hardness over large areas.

˗ Control measurement for rapid determination of a specific thermal treatment result; e.g. annealed or

˗ Testing of workpieces for which the test indentation should be as small as possible on sharp edges;

[e-mail]

ponpe.com

The error and repeatability of the test value see the following table.

Table 1-1

1.3 Standards and regulations applied

ASTM A956 (2006)、CNAL T0299 (2008)、JIS B7731 (2000)、DIN 50156 (2007)、DGZfP Guideline MC
1 (2008)、VDI / VDE Guideline 2616 Paper 1 (2002)、ISO 18625 (2003)、GB/T 17394 (1998)、JB/T 9378
(2001)、JJG 747 (1999).

1.4 Operating conditions

Operating temperature： -10℃～＋50℃;
Storage temperature：-30℃～＋60℃;
Humidity: ≤90％;
The surrounding environment should avoid of vibration, strong magnetic field, corrosive medium and

heavy dust.

1.5 Application examples

large work pieces or on permanently installed system parts.

quenched and tempered conditions.

5

[e-mail]

e.g. on rolls or grinded surfaces of machine parts.

˗ Automatic hardness tests of mass-produced parts during manufacturing operation; e.g. automotive

No.

Item

Qty

Remarks

Base
package

1

The main unit

1

2

Impact device D

1

With cable

3

Test block

1

4

Cleaning brush(I)

1

5

Small supporting ring

1

6

Battery

2

AA Size, Alkaline

7

Documents

1

Operating manual, Certificate
8

Carry case

1

9

Datapro Software

1

10

USB Cable

1

miniUSB-B to USB-A

Optional
parts

11

Cleaning brush(II)

For use with G type impact
device

12

Other type of impact devices
and support rings

Refer to Table 3 and Table 4 in
the appendix.

[e-mail]

industry.

1.6 Scope of delivery

Table 1-2

Note:
Test block – It is necessary to regularly conduct 3 to 10 test impacts on a reference hardness object to

verify the correct operation of the instrument. Various test blocks are available depending on the users’
hardness requirements. For added convenience, the test blocks also indicate the reference hardness
value in different hardness scales.
Support rings – Leeb Rebound testers only work correctly when the impact body is held at a proper
distance from the test surface during impact. The wide range of support rings permits testing on a great
variety of part geometries, i.e. flat surfaces, concave or convex cylindrical surfaces, spherical test
surfaces.

2 Product Feature

2.1 Structure feature

1,The main unit 2,Keypad 3,LCD display 4,USB port
5,Socket of impact device 6,Impact device 7,Label
8, Serial Number 9,Battery compartment

6

[e-mail]

2.2 Impact device D

DC DL C D+15 E G

The energy quotient is quoted in the hardness unit HL and is calculated
from comparing the impact and rebound velocities of the impact body. It
rebounds faster from harder samples than from softer ones, resulting in
a greater energy quotient which is defined as 1000×Vr/ Vi.

HL=1000×Vr/ Vi

Where,

HL— Leeb hardness value
Vr — Rebound velocity of the impact body
Vi — Impact velocity of the impact body

[e-mail]

ponpe.com

1,Release button 2,Loading tube 3,Guide tube 4,Coil unit
5,Connection cable 6,Support ring 7,Impact body

During measurement with this hardness tester, an impact body with a hard tip is impacted by spring
energy against the sample to be measured and then rebounds. During the impact, a permanent magnet
integrated in the impact body passed through a coil in which voltage is induced by the forwards and
backwards movement. This voltage is proportional to the velocities. The impact and rebound velocity is
measured when the impact body tip is approx. 1mm away from the sample to be measured. The
measuring signal is converted to the hardness value by the unit electronics, shown in the display and
stored in the unit memory (if set to strore).

2.3 Other impact devices

The main unit can be combined with any impact device to accommodate specific needs. Special impact
devices are available for use in confined spaces, with special component geometry or surface finish.

2.4 Leeb rebound principle for hardness testing

This hardness tester operates according to the Leeb principle, in which the hardness value is calculated
from comparing the energy of a test body before and after impacting on a sample.

7

[e-mail]

2.5 Screen display

 Material – Selected material.



Impact device – Type of impact device connected to the main unit

 Impact direction – Impact direction setting (“AUTO” when automatically detecting the direction and

 File name – Next file name to store the measurement series.

 USB status – Appears when the USB connection succeeds.



Time – Real time clock of the instrument system in HH:MM format.



Battery capacity – Shows the rest capacity of the batteries.

 Measurements count – Number of measurements in a series.



Average times – Set number of measurements per series.

 Test value – Shows last individual measured value before the test series closes; Or shows the

 Scale – Hardness/Strength scale to display the test value.

 Statistics – Shows minimum, maximum and average value of the test series.



Functions – Functions that can be executed. Functions are programmed and assigned to the

Function keys F1, F2 and F3.
Up arrow key - Navigate up; Increase values

Down arrow key - Navigate down; Decrease values

Selects and Confirms

Turn the main unit on or off; Cancel or close.

Selection of the test material.

Selection of the hardness scale. Displayed hardness scale
will affect all measurements in the current measurement series.
Changing the displayed hardness scale does not change the raw
data as measured in HL.

[e-mail]

Below is the main screen of the main unit：

auto correction); Or detected impact direction after impact in auto direction mode.

average measured value when the test series closes.

function keys F1 to F3. Note that the assignment of the function keys changes depending on the

current dialog/menu.
Testing operation could be carried out under this main screen. After each impact, it will display a singled
measured value; impact count plus one; the buzzer would alert a long howl if the measured value is not
within the tolerance limit. When reaching the average times, the buzzer will alert a long howl. After 1 to 2
seconds, the buzzer will alert a short howl, and display the average measured value.

2.6 Keypad

The instrument is designed to give the user quick access to all of the instrument’s functions. Its
easy-to-use menu system allows any function to be accessed with several key presses.

8

[e-mail]

2.7 Measuring conditions

˗ Make sure that no heat or surface deformations occur at the testing point during the testing process.

˗ Ensure the surface of the workpiece is clean, smooth and dry.

˗ Ensure that the specimen is immobile and not subject to vibrations during the test (due to the

˗ Use samples with large dimensions and enough mass if possible. Special measures must be taken

˗ Recommendation: Carry out at least 3 to 5 impacts at spaces of at least 3 to 5 mm at each

˗ Do not carry out an impact in an area that has already been deformed by another impact.

˗ When preparing the surface, please observe that the condition of the material may be affected (e.g.

 Loosen the two screws of the battery cover.



Lift the cover off upward.

 Insert the batteries into the battery compartment.



Close the battery compartment and fasten the screws.



Turn on the instrument to make sure the battery is installed correctly and firmly.

The start display of the instrument appears as
right figure.

Press F1 key to change to a different language.
Press F3 key to skip the booting check process
and enter the measure mode immediately.

[e-mail]

ponpe.com

In order to avoid erroneous measurements:

dynamic functioning of the hardness testing method). Thin parts must be specially fastened.

for specimens that weigh less than 5 kg.

measuring point and use the average of the individual values.

due to heating or cold working). As a consequence, the hardness is also influenced. If the surface is

inadequately prepared, the measuring results can be affected. Excessive surface roughness results

in lower HL values (the true hardness is greater than indicated) and broad variations of individual

measurements. Cold-worked surfaces produce excessively large HL values (the actual hardness is

less than measured).

3 Startup

3.1 Power supply

Two AA size alkaline batteries are needed as the power supply.
The battery compartment is situated at the instrument back. The cover is fastened with two screws. To
insert the batteries:

3.2 Connecting the instruments

To prepare the instrument for operation, you have to connect an impact device to it. The instrument is
available with the Lemo socket connectors.
When connecting an impact device to the instrument, it’s not only important that the physical connection
be properly made. It’s also important that the instrument is properly configured to work with the installed
impact device.

3.3 Starting the instrument

To start the instrument, press down key until display activates. While the device is booting a splash
screen, the serial number of the unit, the installed software version, the date and time of the system
appear on the display.

9

[e-mail]

The instrument carries out a self-check and
then switches over to the measure mode
automatically if there is no key operation.

The instrument is now ready for the first
measurement.

The instrument will automatically reload last settings. It has a special memory that retains all of its

 Run state – The main unit is running at full frequency



Standby state – After 5 seconds (default setting) the brightness of the LCD display is tuned to a low

 Power off state – After 2 minutes (default setting) the instrument changes from standby state to

[e-mail]

settings even when the power is off.
The type of connected impact device will be detected automatically if the impact device setting is “AUTO”.
User should check if the type of the impact device is correct. If the type of the impact device is incorrect,
change the setting or check the connection.
Probe specific parameters must be measured again if the impact body has been changed, or hardness
test shows deviations greater than ±6 HLD from the nominal value. Recalibration of the probe is
recommended if: the impact device has been cleaned; the impact device has not been used for a longer
time; or particular high accuracy is required. Refer to 4.3 for details.

To shut off the instrument, keep pressing down key until shutting down message appears.

Note:The instrument will shut off automatically if the battery capacity level is too low.

3.4 Configuration of the standby settings

To save battery power, the device supports the following power states:

level and the CPU is running at reduced frequency. This has no effects on the data or the memories.

Pressing any key or performing a measurement sets the unit back to run state and the brightness is

tuned back.

power off state. The main unit and the display is switched off and consumes almost no energy.

Pressing any key will stop the unit entering power off state while it prompts out “Idle Timeout!” and

return back to run state.
The change from run state to standby state is controlled by display standby delay setting. The time delay
can be configured by the user in the Display Standby Delay dialog box. The main unit can be reset to run
state by any user activity while in standby state.

10

[e-mail]

4 Settings

Press arrow keys or F2 key to navigate up and
down to highlight the desired item.

Press or F3 key to change the setting or open
the setting dialog.

Press or F1 key to return to the main menu.

˗ Impact device – Automatically identified.

˗ Impact direction – Automatically detected and corrected.

˗ Material – Steel and cast steel

˗ Hardness scale – HLD (if available for connected impact device type)

˗ Average times – three

[e-mail]

ponpe.com

On the main screen, press F3 key to open the main menu. Navigate with arrow keys through the menu
items.
Structure of the menus:

Note: If a specific menu item is disabled (appears in a different color), the high light cursor will
skip that item while navigating.

4.1 Test settings

Preselected parameters of test setting:

4.1.1 Impact device setting

The impact device setting can be fixed to a specific type of impact device depending on the one
connected to the main unit. As an alternative, AUTO item can also be selected to identify the type of the
impact device automatically.

11

[e-mail]

Press arrow keys or F2 key to navigate up and
down to highlight the desired item.

Press or F3 key to confirm the selection.
Press key to cancel the change and close

current dialog box.

Make sure the selected or the automatically identified impacted device agrees with the connected one.

Press arrow keys or F2 key to navigate to the
desired item.

Press or F3 key to confirm the selection.
Press key to cancel the change and close

current dialog box.



AUTO item is disabled for G type of the impact device.

 The main unit detects the impact direction correctly only after base calibration.

 If only vertical down measurements are performed, disabling AUTO mode is preferable.

Press arrow keys or F2 key to navigate to the
desired material.

Press or F3 key to confirm the selection.
Press key to cancel the change and close

current dialog box.

Note:



Material selection will affect all measurements

in the current measurement series.

 Hardness scale recovers to HL automatically

when material selection is changed. So please
select material before setting hardness scale.

[e-mail]

Incorrect type of the impact device will lead to erroneous result.

4.1.2 Impact direction setting

The instrument offers two methods for correction for non-vertical impact direction: automatic and manual.
With manual correction the user has to specify the actual impact direction. In automatic mode the
instrument will find out the impact direction itself and apply the appropriate correction.

If AUTO item is selected, the impact direction will be detected according to the rebound signal of the
impact body and the measurement value will be corrected automatically by the main unit.

Note:

4.1.3 Material setting

When Hardness/Strength is set to hardness, the following materials are available: Steel and Cast Steel、
Cold Work Tool Steel、Stainless Steel、Gray Cast Iron、 Nodular Cast Iron、Cast Aluminum Alloys、
Copper-Zinc Alloys、Copper-Aluminum Alloys、Wrought Copper and Wrought Steel.
When Hardness/Strength is set to strength, the following materials are available: Mild Steel 、
High-Carbon Steel、Cr Steel、Cr-V Steel、Cr-Ni Steel、Cr-Mo Steel、Cr-Ni-Mo Steel、Cr-Mn-Si Steel、
Super Strength Steel and Stainless Steel.

12

[e-mail]

4.1.4 Hardness scale setting

The hardness scale can be selected with the
arrow keys, or by pressing F2 key.

Press or F3 key to confirm the selection.
Press key to cancel the change and close

current dialog box.

Press or F3 key to select between hardness
and strength while the Hardness/Strength item is
high-lightened.
The Hardness/Strength setting would be set to
hardness automatically after replacing the impact
device whether the setting is hardness or not
before.

Press arrow keys to increase or decrease the
value.

Press or F3 key to confirm the setting.
Press key to cancel the change and close

current dialog box.

[e-mail]

[e-mail]

ponpe.com

Metal hardness can be displayed in different hardness scales: HL(Leeb), HRC (Rockwell C), HB (Brinell),
HV(Vickers), HS, HRA and HRB. The instrument enables measurements to be rapidly taken and
displayed in any chosen hardness scale.

Dynamic HL values are converted to equivalent static hardness values, e.g. HV, HB and HRC, with a
certain conversion scattering.
Hardness scale conversions are material specific, caused by the fact, that there is no clear physical
relationship between the various methods.
Note: For some specific materials, the hardness value can’t be displayed in all hardness scales. If a
hardness scale is not supported for the selected material, that hardness scale item will be disabled
automatically and can’t be selected. The hardness scale is reset to HL automatically after changing the
material. So select material before changing the hardness scale.

4.1.5 Hardness/Strength setting

The instrument has an feature that allows the user to convert hardness readings into tensile strength.
Note: Only impact device D and DC have the function of strength test option. You can not change the
Hardness/Strength setting (fixed to hardness) when using other types of impact device.

If the Hardness/Strength setting is hardness, the Hardness Scale item will be disabled and can not be
changed.

4.1.6 Average times setting

Average times can be adjusted from 1 to 32. The measurement series will be closed and the average
test value will be displayed when the measurement series reaches Average times setting.

4.1.7 Tolerance limit setting

Setting the limits for a measurement series. Values outside the limits are displayed with a “↑” or “↓”.

13

[e-mail]

Press F1 or F3 key to move the highlight cursor;
Press arrow keys to increase/decrease the
values.

Press or F3 key to confirm the setting.
Press key to cancel the change and close

current dialog box.

Note:

 The setting limit cannot exceeds the measure range.



If the lower limit is larger than the upper limit the instrument will prompt an error message.

Press arrow keys to navigate to the desired line
Press F1 key to delete all test series.
Press F2 key to delete the high-lightened test
series.

Press F3 or key to view the content of the
high-lightened test series.

Press key to close the dialog box.

On the view data dialog box (see right), it shows
the series file name, the test time, material, impact
device, impact direction, average test value and
all individual test value.
Press arrow keys to navigate up and down.

Press F3, or key to close the dialog box.

std

H



Open the base calibration dialog box.

 Check if the type of the impact device is correct.



Perform five vertical down measurements on a

reference block.



Use F2 and arrow keys to increase/decrease

the nominal value.

 To save the new calibration results, press the

F3 key. Or press F1 key to cancel the
calibration and exit.

[e-mail]

4.2 Memory manager

Memory Manager is used to manage (view, delete) the internal data storage. On the memory manager
dialog box, it shows each stored file name, mean value of the each test series, and test time of each
series.

4.3 Base calibration (Impact device calibration)

Base calibration is based on a standard conversion function

conversion of the specified HL value L1 coincides with the known converted value H1.
Base calibration is typically used if only one workpiece with known hardness in the required scale is
available or all available reference pieces have hardness values that are grouped closely together. The
workpieces to be measured are made from the same materials and their hardness differs only slightly
from the reference hardness.
Procedure of the base calibration：

The new calibration results are saved to the main unit and will be used automatically in the following test.

Note:
Base calibration for a impact device must be carried out before enabling auto detecting the

(L) and shifts this vertically so that the

14

[e-mail]

impact direction of that impact device.

std

H



Step 1, open multi-point calibration dialog box.



Step 2, Press or F3 key to start the

calibration process.

The display will be switched back to the main screen
automatically when the multi-point calibration
process starts.

On the main screen, please note that “CAL”
characters appear on top of the screen indicating
calibration in process.

 Step 3, Configure the impact device, material

selection and hardness scale settings.

 Step 4, Test the hardness value of the first

reference block.
When the test series closes, “CAL” command will
appear on bottom-left of the main screen. Then
continue:

 Step 5, Press F1 key to add a new calibration

point to the calibration points series. The Add

Calibration Point dialog box will be opened

automatically.

On the Add Calibration Point dialog box, the average
test value is displayed.

 Step 6, Input the nominal value of this reference

block by pressing F1, F2 and arrow keys.

 Step 7, Press or F3 key to complete the

addition of the new calibration point. Or press

key to discard this new calibration point and

close the dialog box.

[e-mail]

ponpe.com

The calibration results are stored in the EEPROM of the main unit and the stored calibration
results will not be lost until next calibration or system reset.

4.4 Multi-point calibration

This instrument provides conversion curves into standard hardness scales for a series of materials. For
special solutions it is possible for the user to correct conversion functions if conversions display
systematic deviations.
Multi-point calibration uses a standard conversion function

determined by at least two reference test points using least squares approximation method, so that the
resulting conversion function H(L) coincides all the reference points.
Multi-point calibration is typically used if at least two workpieces with known and significantly distinct
hardness values in the required scale are available. The workpieces to be measured are made from the
same material and are neither significantly harder than the hardest reference piece nor significantly
softer than the reference piece.
Before starting the multi-point calibration process, prepare 2 to 5 reference blocks with known hardness
value calibrated using other test method. The reference blocks should conform to the measuring
conditions of this instrument. Procedure of the multi-point calibration：

(L) and adds a straight line, which is

15

[e-mail]



Repeat step 4 to step 7 to test the other

reference blocks prepared.



Re-open the multi-point calibration dialog box

after testing all the reference blocks. Note that

all the calibration points are listed on the screen

with their test values and nominal values.

Press or F3 key to end the multi-point calibration process and save the calibration result to its

Press arrow keys or F2 key to navigate up and
down.

Press or F3 key to change current setting or
open the setting dialog box.

Press or F1 key to return to the main menu.

˗ Auto save – Disabled

˗ Key sound – Enabled

˗ Warn sound – Enabled

˗ LCD brightness – 20% of the full brightness

˗ Display standby – After 5 seconds of idleness (no operating)

˗ Auto power off – After 2 minutes of idleness (no operating)

[e-mail]

non-volatile memory. The new calibration results will replace the old ones and will be used automatically
in the following test.

Or press or F1 key to discard the calibration result and return to the main screen.

Note: The stored calibration results will not be lost until next calibration or system reset.

4.5 System configuration

Preselected parameters of system configuration:

4.5.1 Auto save

When Auto Save is set to “On”, the measurement series will be automatically stored when the set
number of values (average times) for a measurement series has been reached.
When Auto Save is set to “Off”, the measurement series will not be stored automatically.

4.5.2 Key sound

Key sound can be configured to on or off. When the key sound is set to on, the buzzer inside the main
unit would make a short audible alarm while press the key each time.

4.5.3 Warning sound

Warning sound can be configured to on or off. If the warning sound is set to on, the buzzer inside the
main unit would make a long audible alarm if the measured value exceeds the tolerance limit, reaching
the average times, or the main unit gives out some operation warnings.

4.5.4 LCD brightness

LCD background illumination can be adjusted.

16

[e-mail]

The setting can be changed by scrolling with F1
(increase) and F2 (decrease) keys, or by pressing
arrow keys.

Press or F3 key to confirm the setting.
Press key to cancel the change and close the

dialog box.

The instrument consumes less current in lower brightness and consequently increases the operating

See right figure of Display Standby Delay dialog
box for the items of the settings.
Press arrow keys or F2 key to select the desired
item.

Selecting “Disable” item will forbid the main unit
switching into standby state.

The time delay can be configured by the user in the
auto poweroff delay dialog box.

Press arrow keys or F2 key to select the desired
item.

Selecting the “Disable” item will forbid the main unit
switching automatically into power off state.

Use F1 and F2 keys to move the cursor.
Use arrow keys to increase/decrease the values;

Press or F3 key to confirm the setting. Press
key to cancel the setting change and close the dialog
box.

[e-mail]

ponpe.com

time.

Note: For saving power, lower down the LCD brightness in good light environment.

4.5.5 Configuration of the display standby settings

Standby state lower down the LCD brightness and puts the CPU in a power conserving mode. The
change from run state to standby state is controlled by the setting of the display standby delay.

The main unit goes into standby state after a period of time as selected. Trigger the impact or press any
key to reactivate the main unit from standby state.

4.5.6 Configuration of the auto power off settings

The change from standby state to power off state is controlled by the setting of auto poweroff delay.

Note: If the voltage of the battery is too low, the LCD screen will show “Battery Exhausted!”, then
power off automatically.

4.5.7 Date and time set

For a correct documentation you should always make sure that you are using the correct date and time
setting. Open the system date&time dialog box to set date and time of the instrument system.
The format for date: Year-Month-Date
The format for time: Hour–Minute- Second

17

[e-mail]

Once set, the internal clock of the instrument will maintain the current date and time.

Use the arrow keys and F2 key to select the operating
language.

Press or F3 key to confirm the selection.
Press key to cancel the language change and

close the dialog box.

Note: User can also change the operating language on
the booting screen during startup.

 Activate the System Reset function. Then you will

see right dialog.



Press F3 key to confirm the reset operation. Or

press F1 key to cancel the reset operation.

NOTE:

 The effects of resetting the instrument may not be

reversed.



No key action should be performed during

resetting process.
 Open the HLX Conversion dialog box. See right

dialog.

 Press key to select the conversion function,

e.g. HLD->HLC (HLD values to HLC values

conversion).

 Modify the input value using F1, F2 and arrow

keys.

 Press F3 to see the converted result value.

Press key to close the HLX conversion dialog box
at any time.

Information concerning the instrument model, the
software version and the serial number of the main
unit is displayed.

Press , , F1 or F3 key to close the dialog box.

[e-mail]

4.5.8 Language selection

Language of the application software can be selected.

4.5.9 System reset

In case the instrument can no longer be operated, or you need to make a basic initialization (factory
setting), you can reset the instrument to original.
The instrument can be reset by the System Reset function. All the stored data inside the main unit and
user calibration will be cleared during system reset. And the instrument settings will be reset to default.
To reset the instrument:

4.6 HLX conversion function

HLX conversion function helps to convert HLD values to HLC, HLG, HLDL and HLD+15, and vice versa.

Note: The input value is limited by the conversion range. So it is not possible to input a value
exceeding the conversion range.

4.7 Product information

18

[e-mail]

4.8 Replace the batteries

 Turn off the instrument.



Take off the battery compartment cover and take out the batteries.



Insert the new batteries.

 Fasten the battery cover.



Turn on the instrument to check.

 Please pay much attention to the polarity of the battery during battery replacement.



Do not cast the battery into fire, disassemble or heat the battery. Otherwise battery leakage,

 Lift the rubber flaps to uncover the connection port.

 Insert the mini-USB end of the USB cable into the USB socket on the upside of main body.



Insert the other end into the USB port of the computer.

 Clean if necessary.

 Carry out performance check.

 Check or change settings (impact device, impact direction, materials, scales, etc. ).

Impact device

types

Classification of samples

Max. Imp

act force

heavy

Medium-weight

Light-weight

D/DC, DL, E

More than 5.0 kg

2.0 – 5.0 kg

0.05 – 2.0 kg

900N≈90kgf

G

More than 15.0 kg

5.0 – 15.0 kg

0.50 – 5.0 kg

2500N≈250kgf

C

More than 1.5 kg

0.5 - 1.5 kg

0.02 – 0.5 kg

500N≈50kgf

[e-mail]

ponpe.com

When the battery capacity runs out, the batteries should be replaced. The user should replace the
batteries following the program below:

Warning:

fire or even explosion may occur.

Please take out the batteries when not working during a long period of time.

4.9 Communication

The instrument is equipped with a USB port on upper left of the instrument.
The PC can be connected with the instrument via the USB cable.

After installing the DataPro software and the USB driver, you can download the stored test data from the
tester.
The DataPro software helps manage and format stored data for high-speed transfer to the PC. Data can
be printed or easily copied and pasted into word processing files and spreadsheets for further reporting
needs. New features include live screen capture mode and database tracking. Detailed information of
the communication software and its usage refer to the software manual.

5 Operation

Caution: Insufficient preparation of the test procedure may damage to the unit and/or the sample to be
measured.
Before each test procedure:

5.1 Preparation of the sample

Preparation for sample surface should conform to the relative requirement in the Appendix Table 3.

5.1.1 Weight and thickness of the test piece

Place specimens under 5kg on a solid base so that they cannot be moved or oscillate as a result of the
impact. Firmly couple specimens that weigh between 0.1-2kg to an immovable base, e.g. a heavy base
plate.
Despite the low mass of the impact body and low impact energy, a relatively large impact force of short
duration is generated when the impact body hits the measuring surface.

For heavy samples of a compact shape, no particular precautions are necessary. Smaller and lighter
samples or workpieces yield or flex under this force, producing HL values which are too small and of
excessively large variation. Even with big or heavy workpieces, it is possible for thin wall regions or
thinner protruding parts to yield upon impact. Depending on the frequency of the resulting yielding action,

19

[e-mail]

the measured HL value may be too small or too large.

 Medium-weight samples and also heavier samples with protruding parts or thin walls should be



Light-weight samples should be coupled with a non-yielding support such as a heavy base plate to

 The contact surface of the sample and the surface of the base plate must be level, flat and ground

 The impact must be carried out perpendicular to the coupled surface.

Impact devices types

Minimum sample thickness for coupling

D, DC, DL, E

3mm

G

10mm

C

1mm

 Apply a thin layer of coupling paste to the

contact surface of the specimen.

Application of coupling paste.

 Press the specimen firmly against the base

plate and spread the paste using circular

motions.

The coupling process has been carried out
properly if there is no longer any metallic contact
between the parts.

Rubbing both parts

 Carry out the impact vertically on the

specimen.

The coupling ensures a rigid connection between
the two parts, the absence of surface stress on the
specimen and thus reliable test values.

Coupled specimen

[e-mail]

In many situations, potential problems can be checked in the following manner:

placed on a solid support in such a manner that they do not move or flex during the test impact.

guarantee that they are rigid. Clamping in a vice is of no value, since the samples become exposed
to stress and because complete rigidity is never attained, resulting in measured HL values which
would be too high and show excessive variations.

Note: Thin areas or parts can oscillate slightly upon impact, even in the case of heavy or
medium-weight workpieces. This can lead to incorrect values and a clanking noise when an
impact is carried out.

5.1.2 Coupling

The following requirements must be met for the coupling:

smooth.

Coupling procedure:

Insufficiently coupled samples produce large variations of individual measurements, HL values which are
too high and the operation is characterized by a rattling noise upon impact of the test tip.

20

[e-mail]

5.1.3 Surface curvature of the test piece

Impact device types

Radius

Impact device type G

min

R

=50 mm

Impact device types D/DC, C
and E

min

R

=30 mm

When concave or convex surfaces
are tested, the impact body either
does not entirely leave the test tube
or comes out too far.
Special support rings are available to
accommodate smaller radii on
convex or concave surface.

 Depress loading tube carefully until contact is felt.



Allow it to slowly return to the starting position.

The device is now ready for carry out the hardness test.

Handling of impact device DC: Place the loading stick
adjacent to the test area. Then plunge the face of impact
device (coil side) over the stick and press down until it
reaches the stop position.

Arming

 Hold the impact device near the support ring and

place it firmly on the test surface.

Positioning

 Trigger the impact by exerting light pressure on the

release button (take care to not compress the spring)
The impact body is released by the catch chunk and
launched onto the test surface with a defined energy. The
result is immediately shown in the selected hardness scale
on the display.
If the indicating device has previously been in standby
mode, it will return to run mode again immediately due to
the measuring process.

Testing

 Repeat the procedure for a further impact. After closing the measurement series, the statistics are

[e-mail]

ponpe.com

Make sure that the radius of curvature of the sample surfaces is not less than 30 mm.
The unit can only work properly when the impact body is in a particular position in the guide tube at the
time of impact on the test surface. In the standard position, the tip of the impact body is precisely at the
end of the tube.

5.2 Triggering the impact

Caution: Incorrect triggering of the impact may lead to incorrect measured values. When the impact is
incorrectly triggered (e.g. the impact device is not correctly positioned), the measured values can be
incorrect.

Arm the unit and trigger the impact in two separate motions. Do not carry out an impact in an area that
has already been deformed by another impact.
Measuring procedure:

automatically calculated and the result is displayed. If a measurement failed, there is a visual signal

21

[e-mail]

(and depending on the warn sound settings an acoustic one).



Test each measuring area by at least 3 to 5 impacts.

 Do not impact the same point more than once.

Impact device types

Distance of center of the two

indentations

Distance of center of the

indentation to sample edge

mm

mm

D、DC

3

5

DL35

D+1535

G48

E35

C24

[e-mail]

Note: The measurement series is automatically completed when the currently set number of
measurements per series (average times) is reached. The following measurement is then the first
value of the new measurement series.

5.3 Conversion Deviations

Measurements with a set conversion produce a scattering. The conversion deviation is the variance
resulting from the comparison of measuring values observed with different hardness testing methods. It
includes 2 components. The major share is caused by the fact that there is no clear physical relationship
between the various methods. The second component results from the circumstance that the
comparison of the hardness values (e.g. HL value and Brinell) also includes the measuring deviation of
the method being compared to. Therefore, a conversion between hardness values contains inaccuracies
from the outset.
This applies not only to conversion of the HL value into static indentation hardness values, but also for
converting from one static hardness measuring method to another. The conversion deviations (±HB, ±HV,
etc.) represent “standard deviations”, i.e. 68% of all materials tested to date fell within the specified
variance range.
Comparing hardness values with each other is thus always subject to inaccuracies. This not only holds
true for the conversion of the HL value to static hardness values but also for the conversion of one static
hardness value to another.
If the measurement series is not yet closed, a conversion scale can be selected at any time: before,
during or after the measuring process.

Number of impacts per measuring area

If the range within the same measuring area exceeds R≧30HL, check whether the surface of the
sample has been adequately ground or whether the sample yields or flexes during the test impact.

Minimum spaces between impact points

22

[e-mail]

6 Fault and Troubleshooting

Fault description

Possible Causes

Troubleshooting

The main unit can’t start up

Low battery voltage

Replace the batteries

Reversal of the battery installation

Pay attention to the battery
polarity

The device is too cold

Go to a room with higher
temperatures

Automatically shut off
shortly after startup

Low battery voltage

Replace the batteries

No impact

Impact body is not inserted or
incorrectly inserted in the impact unit

Insert the impact body correctly

Impact body is not released or
cannot be armed

Use new impact body;
Have the impact device checked
or replace the impact device.

No testing value

Poor cable contact or cable broken

Replace the cable for the impact
device

The impact device can’t be
identified correctly

Broken of the impact device cable

Replace the cable.
Or disable the auto-identifying
option.

The impact direction can’t
be detected correctly

No proper base calibration

Calibrate the instrument using
the base calibration function

Erroneous measured values

No proper base calibration

Calibrate the instrument using
the base calibration and
multi-point calibration functions

The tip ball of the impact device is
badly worn

Replace the tip ball

The test sample is not properly
supported

Support the test sample properly

Measured values on test
block are continuously too
low

Impact device is dirty;
Impact body is damaged

Replace impact body

Measured values on test
block are continuously too
high

Impact body tip flattened

Replace impact body

Test block is worn

Replace test block

Poor repeatability of the test
value

The tip ball of the impact device is
badly worn

Replace the tip ball

The test sample is not properly
supported

Support the test sample properly

The surface condition of the
workpiece is poor

Carefully prepare the testing
point and sample for the impact

The keypad can’t function
properly

Fault of the keypad circuit

Check the connection of the
keypad to the main board. Or
replace the keypad.

The tester can’t
communicate via USB

The PC software or the USB driver
is not installed correctly

Reinstall the PC software and the
USB driver.

The main unit is not on

Turn on the unit before
communicating

 Check the operability of the display.

[e-mail]

ponpe.com

7 Maintenance, storage and care

7.1 Performance check (before each use)

The performance check verifies the mechanical and electronic functions of the impact device and the
main unit. It is accomplished by measuring the hardness value HL of the test block applicable to the
particular type of impact device.

7.1.1 The main unit

23

[e-mail]



Check the capacity of the battery.

7.1.2 Mechanical and electronic checks

 In the case of continuous operation, at least once a day or at least after every 1000 impacts



In the case of infrequent operation, before the beginning and at the end of a test series

 Clean the impact device.



Carry out impacts on a test block at an interval of 3~5 mm (approx. 3~5 impacts).

 Read the mean HL and compare it with the hardness value as marked on the test block.



Change the impact body.

 Check the wear and mounting of the support ring and replace it if necessary.



Clean the impact device



Step1, unscrew the support ring

 Step2, take out the impact body



Step3, spiral the nylon brush in counterclockwise direction into the bottom of guide tube and take it



Step4, install the impact body and support ring when complete.

[e-mail]

The performance check of the unit should be carried out as follows:

The performance check is done by measuring the hardness value HL on the test block.

The impact device is working properly when the mean value is within the tolerances of ±6 HLD and the
range R does not exceed 12 HLD. If it deviates from the mentioned tolerances:
Mean value too high or too low:

If the impact device still shows excessive deviations, do not use the impact device anymore and send it
to the manufacturer to be checked.

7.2 Maintenance

After the impact device has been used for 1000 to 2000 times, please use the nylon brush provided to
clean the guide tube and the impact body. Follow these steps when cleaning the guide tube,

out for 5 times

Release the impact body after use.
Any lubricant is prohibited inside the impact device.

Maintenance of the impact body

To ensure that the impact body is good condition, it should be tested regularly on a test block
(performance check). The impact body is subject to wear and can be easily and economically replaced
by the user (calibration of the impact device is required). The impact body is assembled in a special
manner with critical precision and cannot be repaired.

Standard test blocks

Densely impacted standard test blocks cannot be restored by grinding. Through grinding, the original
hardness is altered in an uneven and uncontrolled manner. Therefore the standard test blocks can
neither be calibrated for a new mean value nor for an acceptable ±tolerance.

7.2 Repair

If the error between the test value and the nominal value is bigger than 2 HRC when testing on the
standard Rockwell hardness block, it may be caused by the abrasion of the impact device tip ball. When
this happens, it is suggested to replace the tip ball or replace the impact body.
When there is some problem with the hardness tester that the operator can’t solve, do not dismantle or
adjust any fixedly assembled parts. Fill in the warranty card and send it together with the tester to us for
repair.

7.3 Transport and storage conditions

Only store the instrument in the original packaging and in a dry room that is as free from dust as possible.
Keep it away from vibration, strong magnetic field, corrosive medium and dumpiness. Store it under
ordinary temperature.
With original package, transport is allowed on the third grade highway.

24

[e-mail]

7.4 Cleaning (after each use)



Unscrew the support ring.



Remove the impact body from the guide tube.

 Clean all dirt and metallic powder from the impact body.



Clean the guide tube with the cleaning brush (accessory).



Clean the display with a clean, dry cloth after each use.



Clean any dirty input socket with a clean, dry brush.

[e-mail]

ponpe.com

The devices do not require any particular care other than periodic cleaning of the impact body and the
guide tube after performing approximately 1000 to 2000 tests.
To clean the guide tube of the impact device,

If necessary, clean the gaps with a pneumatic pump (not compressed air!).
Do not apply oil, grease or other lubricants to any parts for the impact device.
After cleaning, test the calibration of the impact device and recalibrate it if necessary.
To clean the main unit,

Never immerse the unit in water or clean it under running water.
Do not use abrasives, solvents or lubricants to clean the unit.

7.5 Warranty

When used in accordance with the manufacturer’s written instructions and under normal operating
conditions, the instrument is conditionally guaranteed to be free from defects in material and
workmanship for a period of two years from date of shipment.
This warranty shall not apply to equipment subjected to misuse or abuse, improper installation, alteration,
neglect, or accident. Excluded from this warranty are expendable items such as the tip ball of the impact
body inside the impact device, interconnecting cables, and batteries.
This warranty is limited to the original purchaser and is not transferable. No other warranty, expressed or
implied, is made.

7.6 Tips on safety

The design of the instrument meets safety standard. During the operation, it shall meet the specified
external ambient condition, and the operator shall be furnished with concerned technology background,
so as to guarantee safe operation.

Note:

1. This hardness tester and its components are not to be used by children or any under the
influence of alcohol, drugs or medication.

2. The instrument is limited to be used in lab and industrial environment.

25

[e-mail]

Appendix

Material

Scale

Impact device

D/DC

D+15

CGE

DL

Steel and
cast steel

HRC

20～68.5

19.3 ～

67.9

20.0 ～

69.5

22.4 ～

70.7

20.6 ～

68.2

HRB

38.4 ～

99.8

47.7 ～

99.9

37.0 ～

99.9

HRA

59.1 ～

85.8

61.7 ～

88.0

HB

81～654

80～638

80～683

90～646

83～663

81～646

HV

81～955

80～937

80～996

84～1042

80～950

HS

32.2 ～

99.5

33.3 ～

99.3

31.8 ～

102.1

35.8 ～

102.6

30.6 ～

96.8

Cold work
tool steel

HRC

20.4 ～

67.1

19.8 ～

68.2

20.7 ～

68.2

22.6 ～

70.2

HV

80～898

80～935

100～941

82～1009

Stainless
steel

HRB

46.5 ～

101.7

HB

85～655

HV

85～802

Grey 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(cop
per-zinc
alloys)

HB

40～173

HRB

13.5 ～

95.3

BRONZE(co
pper-alumin
um/tin
alloys)

HB

60～290

Wrought
copper
alloys

HB

45～315

[e-mail]

Table 1

26

[e-mail]

Table 2

No.

Material

Testing Range (HLD)

Strength σb(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

[e-mail]

ponpe.com

27

[e-mail]

Table 3

Impact device

DC(D)/DL

D+15

CGE

Impacting energy
Mass of impact body

11mJ

5.5g/7.2g

11mJ

7.8g

2.7mJ

3.0g

90mJ

20.0g

11mJ

5.5g

Tip hardness:
Dia. tip:
Material of tip:

1600HV
3mm
Tungsten
carbide

1600HV
3mm
Tungsten
carbide

1600HV

3mm

Tungsten

carbide

1600HV
5mm
Tungsten
carbide

5000HV
3mm
Synthetic
diamond

Impact device diameter:
Impact device length:
Impact device weight:

20mm
86(147)/
75mm 50g

20mm
162mm
80g

20mm
141mm
75g

30mm
254mm
250g

20mm
155mm
80g

Max. hardness of sample

940HV

940HV

1000HV

650HB

1200HV

Mean roughness value of
sample surface Ra:

1.6μm

1.6μm

0.4μm

6.3μm

1.6μm

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

0.5～1.5kg

0.02～0.5kg

>15kg
5～15kg

0.5～5kg

>5kg
2～5kg

0.05～2kg

Min. thickness of sample
Coupling tightly
Min. layer thickness for
surface hardening

5mm
≥0.8mm

5mm
≥0.8mm

1mm
≥0.2mm

10mm
≥1.2mm

5mm
≥0.8mm

Size of tip indentation

Hardnes
s
300HV

Indentation
diameter
Depth of
indentation

0.54mm
24μm

0.54mm
24μm

0.38mm
12μm

1.03mm
53μm

0.54mm
24μm

Hardnes
s
600HV

Indentation
diameter
Depth of
indentation

0.54mm
17μm

0.54mm
17μm

0.32mm
8μm

0.90mm
41μm

0.54mm
17μm

Hardnes
s
800HV

Indentation
diameter
Depth of
indentation

0.35mm
10μm

0.35mm
10μm

0.30mm
7μm

----0.35mm
10μm

Suitability

DC: Test hole
or hollow
cylindrical;
DL:Testslende
r narrow
groove or hole

Test
groove or
reentrant
surface

Test small,light,
thin parts and
surface of
hardened layer

Test large,
thick,heav
y and
rough
surface
steel

Test super
high
hardness
material

[e-mail]

28

[e-mail]

Table 4

No.

Type

Sketch

Remarks

1

Z10-15

For testing cylindrical outside surface
R10～R15

2

Z14.5-30

For testing cylindrical outside surface
R14.5～R30

3

Z25-50

For testing cylindrical outside surface
R25～R50

4

HZ11-13

For testing cylindrical inside surface
R11～R13

5

HZ12.5-17

For testing cylindrical inside surface
R12.5～R17

6

HZ16.5-30

For testing cylindrical inside surface
R16.5～R30

7

K10-15

For testing spherical outside surface
SR10～SR15

8

K14.5-30

For testing spherical outside surface
SR14.5～SR30

9

HK11-13

For testing spherical inside surface
SR11～SR13

10

HK12.5-17

For testing spherical inside surface
SR12.5～SR17

11

HK16.5-30

For testing spherical inside surface
SR16.5～SR30

12UNFor testing cylindrical outside surface,
radius R10～∞

[e-mail]

ponpe.com

29

[e-mail]

User Notes



Damage caused by man-made or improper keeping;



Self-dismantle or non-special repair shop dismantle;



Do not follow the requirement of service registration or warranty expired;

 Consumable parts.



MITECH users have lifelong maintenance service



Free maintenance, inspection, software upgrade and etc.

Add：Room E506B, YingChuangDongLi Park, 1# of ShangDi East Road,

Haidian District, Beijing, China

Post code：100085

Website：www.mitech-ndt.com

Email：[e-mail]

Tel：[phone]

[e-mail]

Warranty：

The product is guaranteed for one year since purchased. Log www.mitech-ndt.com or follow our

company official public platform to register for maintenance. Please fill the blanks as required, if the

product is not registered for maintenance, it will follow the date of manufacturer.

When applying for maintenance, please visit our official website, www.mitech-ndt.com or official

accounts, submit “online reporting to repair” sheet.

In accordance with the international relevant regulations, the following are not within the scope of free

warranty,

Service promise：