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Related Manuals for MITECH MH320
Summary of Contents for MITECH MH320
- Page 1 MITECH CO., LTD. www.mitech-ndt.com www.ponpe.com...
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Page 2: Table Of Contents
CONTENTS 1 Overview................................. 3 1.1 Advantages..............................3 1.2 Main Application &Testing Range......................3 1.2.1 Main Application............................3 1.2.2 Testing Range............................3 1.3 Configuration..............................4 1.4 Working Conditions.............................4 1.5 Safety Instructions............................4 2 Structure Feature &Testing Principle......................5 2.1 Structure Feature............................5 2.1.1 The Hardness Tester Appearance......................5 2.1.2 Parts of the Main body.......................... - Page 3 APPENDIX................................22 Table 1................................22 Table 2................................23 Table 3................................24 Table 4................................25 User Notes................................26...
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Page 4: Overview
Overview 1.1 Advantages Wide measuring range. Based on the principle of Leeb hardness testing theory. It can measure the Leeb hardness of all metallic materials. Large screen(128×64 dot matrix LCD), showing all functions and parameters. Test at any angle, even upside down. -
Page 5: Configuration
The instrument can only work with the specially designed battery pack and power adapter (charger) supplied by Mitech Co. LTD. Working with others may result in damage of the instrument, battery leakage, fire or even explosion. Do not cast the battery pack into fire and do not short circuit, disassemble or heat the battery pack, ... -
Page 6: Structure Feature &Testing Principle
FEED MENU ENTER 2.1.2 Parts of the Main body HL0108070811 M i T e c h HARDNESS TESTER MODEL: MH320 BATTERY: 6V NI-MH CHARGER: 9V DC CAUTION: 1 Do not disassemble 2 Do not dispose of in fire or water... -
Page 7: D Type Impact Device
2.1.3 D Type Impact Device 1 Release button 2 Loading tube 3 Guide tube 4 Coil unit 5 Connection cable 6 Impact body 7 Support ring 2.1.4 Different Types of Impact Device D+15 2.2 Leeb Hardness Testing Principle... - Page 8 Table 3-1 Type of impact Hardness value of Leeb Error of displayed Repeatability device standard hardness block value 760±30HLD ±6 HLD 6 HLD 530±40HLD ±10 HLD 10 HLD 760±30HLDC ±6 HLDC 6 HLD 530±40HLDC ±10 HLDC 10 HLD 878±30HLDL...
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Page 9: Preparation & Testing
4 Preparation & Testing 4.1 Preparation & Inspection before Testing 4.1.1Preparation of Sample Surface Preparation for sample surface should conform to the relative requirement in the Appendix Table 3. In the preparation processing for sample surface, the hardness effect of being heated or cold ... -
Page 10: Loading
Press【 】key，now power is connected. The instrument is in testing condition. 4.2.2 Loading Pushing the loading-tube downwards until contact is felt. Then allow it to slowly return to the starting position using other method locking impact body. -
Page 11: Power Off
6 Operation in Details 6.1 Power On Press【 】 to power on the system. The screen shows as below: MH320 HARDNESS TESTER Probe Type:D Mitech Inc. The system would automatically detect the type of the impact device during power up, and would display this information on the screen. -
Page 12: Instruction Of The Main Display Interface
6.3.1 Instruction of the Main Display Interface Battery information：Display the information of the rest capacity of the battery, and the charging status. Impact direction：The present impact direction. Average value indicator： It appears to show the mean value of the samples when reaching the ... - Page 13 Impact Direction Average Material Hardness Scale Tolerance Limit Hard/бb：Hard Test Set Print Current Print Set Print Memory Memory Manager Print All Memory System Set View From No.1 Software Info View From End View From No. Transfer Delete by No.
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Page 14: Test Set
6.5 Test Set At the main display interface, press key【MENU】 to enter the main menu. Press key 【ENTER】 to enter Test Set Menu. Test Set The symbol ↓ at the left side of underside menu Print Set indicates that the menu has not ended. Press Memory Manager key 【... - Page 15 Press key 【 】 or 【 】 to move the cursor to the Copper-Zinc material you want to preset. Copper-Alumin Press key【ENTER】to confirm it. Press key【ESC】to cancel it. Wrought Copper Note 1. Presetting hardness scale recovers to HL automatically after material presetting Wrought Steel is changed.
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Page 16: Print Function
Press key【ENTER】to switch between Hard and бb . Material Note: Only D and DC type of impact device has the function of бb measure. So hard Hardness Scale is the only selection if the impact device is not D or DC type. - Page 17 Press key【 】or key【 】to move the cursor View From No.1 to the function wanted, then press key【ENTER】 View From End to confirm. View From No. Transfer Delete By No. Delete All 6.7.1 View from No.1 Group/View from Ending Group 【...
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Page 18: Browsing Memory Data Groups
6.7.6 Deletion Confirmation Press key【 】to move the cursor 】or【 --------------- to【YES】 and press key【ENTER】to confirm Confirm delete？ deleting operation. --------------- Press key 【 】 or 【 】 to move the cursor to 【 NO 】 and press key 【 ENTER 】 to cancel deleting operation. -
Page 19: System Set
6.9 System Set At the main display interface, press key【MENU】 enter the main menu. Press key【 】or key【 】to move the cursor Test Set to【System Set】Menu. Press key【ENTER 】to enter【System Set】 Print Set menu. Memory Manager System Set Press key【... -
Page 20: Software Information
Memory Manager Press key 【ENTER】 into 【Software Info】 screen. System Set Software Info This screen displays the information about the Mitech MH320 main body and the firmware. The version, the Code and the SN would change with the Version:1.00 firmware. -
Page 21: El Background Light
It would display the average value after Calibration measuring 5 times. -------------- Press key 【 】 or key 【 】 to input the nominal value. Average=780 Press key【ENTER】to confirm. Nominal=780 Press key【ESC】to cancel this operation. Range of adjustment: ±15HL. -
Page 22: Battery Replacement
Warning: When the battery pack is being charged, printing or paper feeding is unavailable. 6.16 Battery Replacement When the battery pack fails to be charged, the user should replace the batteries following the program below: Power down the instrument. -
Page 23: Appendix
APPENDIX Table 1 Impact device Material Method D/DC D+15 19.3～ 20.0～ 20.6～ 20～68.5 22.4～70.7 67.9 69.5 68.2 38.4～ 47.7～ 37.0～ 99.6 99.9 99.9 59.1～ Steel and cast 61.7～88.0 85.8 steel 127～ 80～638 80～683 90～646 83～663 81～646 83～976 80～937... -
Page 24: Table
Table 2 Material 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 500～750 755～1993 Super strength steel 630～800... -
Page 25: Table
Table 3 Type of 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 Test tip hardness: 1600HV 1600HV 1600HV 1600HV 5000HV Dia. Test tip: Material of test tip:... -
Page 26: Table
Table 4 Type Sketch of Remarks non-conventional Supporting ring For testing cylindrical outside Z10-15 surface R10～R15 For testing cylindrical outside Z14.5-30 surface R14.5～R30 For testing cylindrical outside Z25-50 surface R25～R50 For testing cylindrical inside HZ11-13 surface R11～R13 For testing cylindrical inside HZ12.5-17... -
Page 27: 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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