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Summary of Contents for MITECH MH600
- Page 1 MITECH CO., LTD. www.mitech-ndt.com www.ponpe.com...
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Page 2: Table Of Contents
CONTENTS 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... - Page 3 Table 2................................26 Table 3................................27 Table 4................................28 User Notes................................29...
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Page 4: Introduction
1 Introduction 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. -
Page 5: Technical Specifications
1.2 Technical specifications The error and repeatability of the test value see the following table. Table 1-1 Impact Hardness value of the Measuring Measuring accuracy Device test block Repeatability 760±30HLD ±6 HLD 6 HLD 530±40HLD ±10 HLD 10 HLD 760±30HLDC... -
Page 6: Scope Of Delivery
˗ Automatic hardness tests of mass-produced parts during manufacturing operation; e.g. automotive industry. 1.6 Scope of delivery Table 1-2 Item Remarks Base The main unit package Impact device D... -
Page 7: Impact Device D
2.2 Impact device D 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. -
Page 8: Screen Display
2.5 Screen display Below is the main screen of the main unit： 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 ... -
Page 9: Measuring Conditions
2.7 Measuring conditions In order to avoid erroneous measurements: ˗ 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. -
Page 10: Configuration Of The Standby Settings
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 settings even when the power is off. -
Page 11: Settings
4 Settings 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. -
Page 12: Impact Direction Setting
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. -
Page 13: Hardness Scale Setting
4.1.4 Hardness scale setting 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. -
Page 14: Memory Manager
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. -
Page 15: Multi-Point Calibration
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. -
Page 16: System Configuration
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. - Page 17 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.
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Page 18: Hlx Conversion Function
Once set, the internal clock of the instrument will maintain the current date and time. 4.5.8 Language selection Language of the application software can be selected. Use the arrow keys and F2 key to select the operating language. -
Page 19: Replace The Batteries
4.8 Replace the batteries When the battery capacity runs out, the batteries should be replaced. The user should replace the batteries following the program below: Turn off the instrument. Take off the battery compartment cover and take out the batteries. -
Page 20: Coupling
HL value may be too small or too large. In many situations, potential problems can be checked in the following manner: Medium-weight samples and also heavier samples with protruding parts or thin walls should be ... -
Page 21: Surface Curvature Of The Test Piece
5.1.3 Surface curvature of the test piece 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. -
Page 22: Conversion Deviations
(and depending on the warn sound settings an acoustic one). 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. -
Page 23: Fault And Troubleshooting
6 Fault and Troubleshooting Fault description Possible Causes Troubleshooting Low battery voltage Replace the batteries Reversal of the battery installation Pay attention to the battery The main unit can’t start up polarity The device is too cold... -
Page 24: Mechanical And Electronic Checks
Check the capacity of the battery. 7.1.2 Mechanical and electronic checks The performance check of the unit should be carried out as follows: In the case of continuous operation, at least once a day or at least after every 1000 impacts ... -
Page 25: Cleaning (After Each Use)
7.4 Cleaning (after each use) 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, Unscrew the support ring. -
Page 26: Appendix
Appendix Table 1 Impact device Material Scale D/DC D+15 19.3 20.0 22.4 20.6 ～ ～ ～ ～ 20～68.5 67.9 69.5 70.7 68.2 38.4 47.7 37.0 ～ ～ ～ 99.8 99.9 99.9 59.1 61.7 Steel ～ ～ 85.8 88.0 cast steel 81～654... -
Page 27: Table
Table 2 Material Testing Range (HLD) Strength σ (MPa) Mild steel 350～522 374～780 High-Carbon steel 500～710 737～1670 Cr steel 500～730 707～1829 Cr-V steel 500～750 704～1980 Cr-Ni steel 500～750 763～2007 Cr-Mo steel 500～738 721～1875 Cr-Ni-Mo steel 540～738 844～1933 Cr-Mn-Si steel 500～750... -
Page 28: Table
Table 3 Impact device DC(D)/DL D+15 Impacting energy 11mJ 11mJ 2.7mJ 90mJ 11mJ Mass of impact body 5.5g/7.2g 7.8g 3.0g 20.0g 5.5g Tip hardness: 1600HV 1600HV 1600HV 1600HV 5000HV Dia. tip: Material of tip: Tungsten Tungsten Tungsten Tungsten... -
Page 29: Table
Table 4 Type Sketch Remarks Z10-15 For testing cylindrical outside surface R10～R15 Z14.5-30 For testing cylindrical outside surface R14.5～R30 Z25-50 For testing cylindrical outside surface R25～R50 HZ11-13 For testing cylindrical inside surface R11～R13 HZ12.5-17 For testing cylindrical inside surface R12.5～R17... -
Page 30: User Notes
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.
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