AMTAST AMT212 Instruction Manual
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AMTAST AMT212 Instruction Manual

Leeb hardness tester
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AMT212 Leeb Hardness Tester
Instruction Manaul
AMTAST USA INC

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Summary of Contents for AMTAST AMT212

  • Page 1 AMT212 Leeb Hardness Tester Instruction Manaul AMTAST USA INC...

  • Page 2: Table Of Contents

    Contents 1 General description ............. 3 1.1 Features..................3 1.2 Main Application and Testing Range ......... 3 1.3 Types and specification ............. 6 1.4 Operating conditions:..............9 2 Structure features and Testing principle ......10 2.1 Structure features ..............10 2.2 Testing principle ..............12 3 Technical capabilities ............
  • Page 3 7 Trouble shooting ..............33 8 Maintenance ..............33 8.1 Impact device ................33 8.2 Standard maintenance procedures..........33 9. Notice of Transportation and Storage......33 10. Non-warranty part ............33...

  • Page 4: General Description

    1 General description 1.1 Features ⚫ Color display (320×240 TFT) with adjustable backlight ⚫ Converts to all common hardness scales (HV ,HB,HRC,HRB,HRA,HS), and real time display HL value. ⚫ Probe plug and test. Support hot plug, the probe can be set automatically and automatic recognition function.
  • Page 5 ⚫ Narrow testing space where work piece installed ⚫ Bearings and other parts ⚫ Cases which require the test result with normalized original recording ⚫ Material identification of the metal material warehouse ⚫ Quick tests of large range and multipoint measuring positions for heavy workpiece 1.2.2 Testing Range Testing range see table 1 and table 2.
  • Page 6 Impact device Hardness Material method D/DC D+15 Gray cast 93～334 92～326 iron Nodular 127～ 131～387 cast iron 19～164 23～210 32～168 Cast aluminum 23.8～ 23.8～84.6 22.7～85.0 alloys 85.5 Brass(copp 40～173 er-zinc 13.5～95.3 alloys) Bronze (copper-alu minum/cop 60～290 per-tin alloys) Wrought copper 45～315 alloys Table 2...

  • Page 7: Types And Specification

    1.3 Types and specification Remarks Main unit D type impact device Small supporting ring Nylon brush (A) High value Leeb test Standard block Delivery Battery Charger 9V 1000mA Paper for printing Communication cable DataView Software In case of choosing Nylon brush （II） type impact device...
  • Page 8 Mean roughness of workpiece surface of 1.6μm 1.6μm 0.4μm 6.3μm 1.6μm the Ra Min. weight of sample Measure directly >5kg >5kg >1.5kg >15kg >5kg Need support firmly 2～5kg 2～5kg 0.5～1.5kg 5～15kg 2～5kg Need coupling tightly 0.05～2kg 0.05～2kg 0.02～0.5kg 0.5～5kg 0.05～2kg Min.
  • Page 9 Table 4 Sketch of non conventional Code Type Remarks supporting ring For testing cylindrical outside surface 03-03.7 Z10-15 R10～R15 For testing cylindrical outside surface 03-03.8 Z14.5-30 R14.5～R30 For testing cylindrical outside surface 03-03.9 Z25-50 R25～R50 For testing cylindrical inside 03-03.1 surface HZ11-13 R11～R13...

  • Page 10: Operating Conditions

    For testing spherical inside 03-03.1 surface HK11-13 SR11～SR13 For testing spherical inside 03-03.1 surface HK12.5-17 SR12.5～SR17 For testing spherical inside 03-03.1 surface HK16.5-30 SR16.5～SR30 For testing cylindrical outside surface, 03-03.1 radius adjustable R10～∞ 1.4 Operating conditions: Ambient temperature: -10℃～40℃ Relative humidity: ≤90％ No vibration, no strong magnetic field and no corrosive medium and heavy dust in ambient environment.

  • Page 11: Structure Features And Testing Principle

    2 Structure features and Testing principle 2.1 Structure features 2.1.1 Hardness Tester 1: Main unit 2: Impact device 2.1.2 Main unit Socket of impact device Paper compartment cover TFT display Power jack 4: Keypad Socket of USB Battery switch 8 Product label 9 Serial Number 10.Battery compartment cover...
  • Page 12 2.1.3 D type impact device Release button Loading sheath Guide tube Coil part Connection cable Impact body Support ring 2.1.4 Non conventional types of impact devices D+15...

  • Page 13: Testing Principle

    2.2 Testing principle Let a impact body whose weight is definite rush into the surface of sample, the hardness value comes from the rate of rebound velocity and rush velocity at 1mm distance from testing surface. The calculation formula is following: HL=1000×...

  • Page 14: Dimension Size And Weight

    3.2 Dimension size and weight 209×85×45mm 3.2.1 Dimension (main unit) 3.2.2 Weight approx. 0.6kg (main unit); Table 5 Type of hardness value of Error of Repeatability of impact standard Leeb displayed displayed value device hardness block value ±6 HLD D+15 760±30HLD 6 HLD 4 Testing...
  • Page 15 than 30mm (for D, DC, D + 15, C, E and DL type impact device) and less than 50mm (for G type impact device), a small support ring or non conventional support ring should be used. ⚫ workpiece supporting —— Support is not necessary for heavy test workpiece ——...

  • Page 16: Testing

    4.2 Testing ⚫ A standard hardness block should be used to check the the tester prior to the testing; and the reading value error and repeatability should not be more than the specification in table 5. Note: the hardness value of standard hardness test block can be measured via a Leeb hardness tester which had been calibrated;...
  • Page 17 4.2.3 Testing ⚫ Press down the release button on the top of the impact device to make a test. At this point, the test sample, impact device and the operator are all required to be stable; and the force direction should comply with the axis of the impact device.
  • Page 18 4.2.4 Read measured value 4.2.5 Print out result For specific setting method, see 6.3.3 and 6.6. 4.2.6 Press 【 】 key to turn off 4.2.7 The processing of testing results The mean value of five valid testing points can be served as a testing data of Leeb hardness.

  • Page 19: Special Prompts

    5 Special prompts ⚫ Replacing impact device must be performed under the condition of turn off, otherwise the impact device type can not be identified automatically, and even it is possible to cause the damage of circuit board of the tester. ⚫...

  • Page 20: Detail Testing Procedures

    6 Detail Testing procedures 6.1 Start-up Press 【 】 key to turn on the tester, The screen will display the relevant information into the measurement state. 6.2 Turn On or turn off Tester can be turn on or trun off by press 【 】...
  • Page 21 times is been set by shortcut key, and the times which corresponding to single measured value will be displayed when viewing single measured value. 6.3.2 Testing procedures Testing can be carried out under this interface status, and the current measured value will be displayed whenever one measurement is finished.
  • Page 22 Shortcut key setting: ⚫ Impact direction setting can be changed by press 【DIRECTION】 function key. ⚫ Hardness scale setting can be changed by press 【SCALE】function key. Whenever press the key once, a circulating conversion among all hardness scales that available to current material and impact device will be performed.

  • Page 23: Menu Structure Diagram

    6.4 Menu structure diagram The parameter setting and additional function of equipment can both realized by menu operating. At the main display interface, pressing 【MENU】 key to enter the main menu. Sensor Setting Impact direction Material Hardness scale Average Tolerance limit Hardness/Strength Print current Print history...

  • Page 24: Measuring Condition Setting

    6.5 Measuring condition setting 6.5.1 Impact sensor setting scale setting 6.5.2 Hardness Note: 1. For the current selected impact device and material, only the hardness scale which can be conversed will be displayed; hardness which can be conversed will not be displayed. Material should be chosen prior to the hardness scale.
  • Page 25 6.5.3 Tolerance limit setting Note: 1. If the setting exceeds the measuring range, the tester will ask operator to reset. 2. Exchanging will be done automatically if the Min. tolerance limit is more than Max. tolerance limit. 6.5.4 Hardness/σ setting Note: Only D/DC type impact device is provided with the function of 【...

  • Page 26: Print Function

    6.6 Print function Portable Hardness Tester --------------------- No.: 6.6.1 Printing current value Operator: Time:13:40:46 Note: Information about Date:08/28/2015 serial number --------------------- operator should be filled Probe Type: D Impact direc.:+90 Deg by manual. Mean Times:05 Material:Matl of Roller --------------------- 51.4 50.9 51.5 51.6 51.7 Average= 51.4HSD ---------------------...
  • Page 27 6.6.2 Print History Press 【↑】 【↓】key move cursor. Press 【←】 【→】key pageup and pagedown. Press 【SET】key mark record. Can multiple choice. Note: ⚫ Printing function is unavailable while charging. ⚫ Do not open the cover of the paper compartment during printing.

  • Page 28: Memory Manager

    6.7 Memory manager 6.7.1 Viewing all Press 【↑】 【↓】key move cursor. Press 【←】 【→】key pageup and pagedown...

  • Page 29: System Set

    6.8 System Set 6.9 About software The interface display instruments and embedded software information. The software version number and embedded software identification may change with the software upgrade, we no longer notice.

  • Page 30: Software Calibration

    6.10 Software calibration The tester and impact device must be calibrated with a standard Leeb hardness test block prior to the first use, or reusing after a long term idle. One time calibration is enough for each type of impact device which equipped with a main unit;...

  • Page 31: Turn Off The Power Automatically

    6.12 Turn off the power automatically ⚫ Auto turn off function is supplied to save the energy of battery. ⚫ If neither measurement nor any key operation is performed within 5 minutes, the tester will turn off automatically. ⚫ In case of too low battery voltage, “ ”...

  • Page 32: Battery Replacement

    Replacement 6.14 Battery When the battery pack fails to be charged, the user should replace the batteries following the program below: ⚫ Power down the instrument. ⚫ Take off the battery compartment cover and take out the battery pack. ⚫ Insert the connection plug of the new battery pack into the socket on the circuit board.

  • Page 33: Paper Loading

    Paper Loading 6.15 ◆ Instrument designed a dedicated mechanism for opening the paper compartment cover. Pull this mechanism with the fingers, you can easily open the paper compartment cover. ◆ According to the illustration, put the paper into the paper compartment with attention to the paper direction.
  • Page 34 7 Trouble shooting Failure Cause Solution Failure in starting Battery empty Replace battery No measuring Probe cable open Replace Probe cable value circuit Value is Calibration data over again Calibration inaccurate lose Replace the battery with a Charge failure Battery failure new pack 8 Maintenance 8.1 Impact device...
  • Page 35 Warranty Card Products Type: Leeb Hardness Tester Main unit No: Impact device No: Service phone code Consumer information Purchasing date: Corporation name Corporation address Consumer name Consumer phone code Malfunction description:...
  • Page 36 Qualified Certificate Products Name:: Leeb Hardness Tester Products Type:_______________________ Main unit No:________________________ Impact device No:____________________ The product accords with the technical criteria and is allowed to sell. Quality Check Engineer:_________________ Inspection date:_____________...
  • Page 37 Leeb Hardness Tester Packing List Appellation Main unit D type impact device Small supporting ring Nylon brush (A) High value Leeb test block Instruction Manual Battery Charger Paper for printing Communication cable Box Of instrument Release date________________...

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