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YUSHI LM330 Operating Manual

Leeb hardness tester
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Leeb Hardness Tester
LM330
Operating Manual
YUSHI INSTRUMENTS
CONTENTS
1. Principle of Leeb Hardness Testing Method.............................. 1
2.1 Instrument Diagram......................................................................... 1
2.2 Standard Configuration .................................................................. 2
2.3 Optional Accessories........................................................................2
3.1 Technical Specifications...................................................................2
3.2 Applications......................................................................................3
4.1
4.2
.................................................................................................................6
5.2 Parameters Setting..........................................................................6
5.2.1 Material.............................................................................. 6
5.2.2 Hardness Scale................................................................... 7
5.2.3 Impact Times......................................................................7
5.2.4 Impact Direction................................................................ 7
5.3 Measuring......................................................................................7
5.3.1 Operating............................................................................7
5.4 Interface Description.....................................................................8
5.4.1 Default Interface ............................................................ 9
5.4.2 Calibration Interface.......................................................... 9
5.4.3 Sub-interface of Read The Storage ................................10
5.4.4 Sub-interface of Read The Storage..................................10
5.4.5 Setting and Shutdown Interface....................................... 11
5.4.6 Storage Data Transmission...............................................11
6.Maintenance&Servicing.
................................................................................11
...............................................1
.......................................................................... 2
............................................................................ 4
.............................................................................4
.......................................................................5
.............................................................................6

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Summary of Contents for YUSHI LM330

  • Page 1: Table Of Contents

    2.3 Optional Accessories................2 3. Functions And Applications ................2 3.1 Technical Specifications..............2 3.2 Applications..................3 4.Pre-treatment of Workpiece ................4 Workpiece Requirements ................4 LM330 Selection of Supporting Ring ...............5 5. Operation .........................6 5.1 Turn On the Instrument ................6 Operating Manual 5.2 Parameters Setting................6 5.2.1 Material................

  • Page 2: Principle Of Leeb Hardness Testing Method

    1. Principle of Leeb Hardness Testing Method The impact body, which is equipped with tungsten carbide, impacts 2.2 Standard Configuration into the work piece and rebounds back. The rebound and impact  Main Unit (With D type impact device) velocities are measured at the 1mm point from the work piece in the following way: the integrated permanent magnet will produce directly ...

  • Page 3: Applications

    4 Pre-Treatment of Workpiece Accuracy: ±6HLD (HLD=800), Repeatability 6HLD (HLD=800) Measuring Direction: Vertically downward, inclined downward, Level, 4.1 Workpiece Requirements inclined upward, vertically upward, 360 degrees by manual setting. 1. Surface roughness is an important requirement for the test piece, it Material: Steel &...

  • Page 4: Selection Of Supporting Ring

    4.2 Selection of Supporting Ring 5. Operation When the curvature radius (R) of testing sample surface is smaller 5.1 Turn on the Instrument than 30mm and greater than 11mm, the small supporting ring should be used, or select our special supporting ring(Optional) to obtain the Press power on button (D) to turn on the instrument, the screen best test condition.

  • Page 5: Hardness Scale

    5.2.2 Hardness Scale Setting 5.4 Interface Description Press scale setting button (A) to select the hardness scale and strength; Note: when choosing DL probe in the storage interface, “HLD” displays as “HLDL”. Figure 5.2 5.2.3 Impact Times Setting Press times button (C) to set the impact times from T1~T6, which will calculate the AVE value after the certain impacts.

  • Page 6: Default Interface

    5.4.1 Default Interface 5.4.3 Storage Interface A→Save button, can be operated once after the mean value effective. A→Hardness sacle switch button B→Material switch button B→Read the storage button, will switch to (5.8) read the storage C→Impact times selection button, calculating the mean value sub-interface .
  • Page 7 5.4.5 Setting and Shutdown Interface Conversion Table between HLD Value and HLDL Value A→Language switch button: Simplified Chinese, Traditional Chinese, Japanese, English and Spanish. B→Impact device switch button, only DL probe is optional. HLDL C→Brightness control button, total three levels. D→Power off button HLDL HLDL...

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