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Table of Contents
Summary of Contents for MET MET-U1
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Page 1: Table Of Contents
CONTENTS Introduction ............................. 1. Purpose ..........................2. General recommendations ....................3. Technical data ........................4. Complete set of equipment ....................5. Design and operation principles ................... 6. Operation procedure ......................6.1 Preparation for operation ..................... 6.2 Operation with electronic module ................ -
Page 2: Introduction
? Dynamic (MET-D1 / MET-D1A) ? Combined (MET-UD / M E T - U D A ) MET-U1 Ultrasonic portable hardness tester is manufactured in compliance with TU 4271 – 001 – 18606393-01). Certificate of Approval of this type measuring equipment #7951 is registered in SI State Register under the number of 19623-00 and the equipment is recommended for application in the Russian Federation. - Page 3 KZ.02.03.01466-2006/22736-02, and the equipment is recommended to be used and imported into the republic of Kazakhstan. MET-UD Combined portable hardness tester is manufactured in compliance with TU 4271 – 004 – 18606393-04). Certificate of Approval of measuring equipment, type #11911 is registered in SI State Register under the number of 22737-02 and the equipment recommended for application in the Russian Federation.
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Page 4: Purpose
1. PURPOSE 1.1 Portable hardness tester (hereinafter referred to as the “hardness tester”) is designed to measure hardness of metals and alloys. There are 8 independent hardness scales in the hardness tester. Prior to the delivery, the manufacturer carries out the preliminary calibration of hardness tester on 4 scales, Rockwell (HRC), Brinell (HB), Vickers (HV) and Shore (HSD). -
Page 5: General Recommendations
1.1 of mechanical engineering, metallurgy, power generation, ship building and railroad transport, in aviation and space industry, in oil and gas sector, in maintenance and service companies etc. Pressure vessels of various purpose (reactors, steam generators, collectors, boiler drums, gas holders etc.), turbine and generator rotors, pipelines, rolls, crankshafts, gears, parts of various vehicles, industrial prefabricates articles (castings, forgings, sheets and plates) etc. - Page 6 Non-volatile memory – data saving in archive when hardness Available tester is switched off Character LCD display: simultaneously displays a hardness Available scale, operating mode, archive number and discharge level indication LCD display lighting Available The function of conversion from one hardness scale into another Available Protective code excluding the possibility of an accidental Available hardness tester calibration reset...
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Page 7: Complete Set Of Equipment
Case for hardness tester fixing on the forearm, belt, neck Connecting cable for power supply and data transfer to the computer via USB port U1 ultrasonic probe (for MET-U1/U1A; MET-UD / U D A hardness testers) Connective cable for ultrasonic probe (for MET-U1/U1A;MET-UD/UDA hardness testers) D1 dynamic probe (for MET-D1/D1A;... - Page 8 ADDITIONAL ITEMS (shall be additionally paid) Reference hardness blocks(GOST 9031-75; 8.426-81) verified at FGUP “VNIIFTRI” for hardness tester readings verification and calibration by user MTR type (Rockwell): HRC, HRA, HRB MTSR type (Super-Rockwell): HRN, HRT MTB type (Brinell): HB MTV type (Vickers): HV MTSh type (Shore): HSD Lapping fluid Dynamic probe: for setting test blocks and small-mass articles which were preliminary fixed on to the testing plate.
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Page 9: Design And Operation Principles
The choice between ultrasonic and dynamic probe is made depending on mass, configuration, structure, degree of mechanical and thermal treatment of a tested article. MET-UD combined portable hardness tester (fig.2): 1 – electronic module 2 — U1 ultrasonic probe 3 –... - Page 10 RECOMMENDATION. To test articles with wall thickness less than 2 mm and R of surface curvature less than 18 mm, it is recommended to use accessories to ultrasonic probe (holder, replaceable attachments etc. – see paragraph 4) 5.3 Dynamic probe (rebound method) is a device connected with electronic module by cable. D1 dynamic probe and D1/2 short dynamic probe differ in size and spring retracting principle.
- Page 11 *on the upper end there is: 1) four-pin plug for connecting to a computer or a charger; 2) five-pin plug for probe connection 5.5 On the electronic probe back side, there is hardness tester operation diagram (fig.6) HRC HB HV HSD Rm H1 H2 H3 TEST CALIBRATION PROCESSING...
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Page 12: Operation Procedure
Charger 1 – red optical diode 2 – USB port for power cable male connector 3 USB mail connector of power cable – 4 – 4-pin plug of connective cable for connecting to electronic module It is allowed to charge the battery and work with the hardness tester simultaneously. It is prohibited to connect the charger to the electronic probe without the battery. - Page 13 6.1.2 TESTED ARTICLE PREPRATION The mandatory requirements to the tested article: ? During the testing period, the tested article shall be under no load from the main operational loads. ? The article mass and thickness shall comply with paragraph 3 requirements. The mandatory requirements to the article surface shall correspond to the parameters given in ? The roughness and radius of curvature of the tested surface shall correspond to the parameters given in paragraph 3.
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Page 14: Operation With Electronic Module
6.1.5 POWER SUPPLY SWITHCING OFF o Power supply switching off takes place automatically without any operation with push buttons or probe (-150 sec)*; o It takes place if ? and ? buttons are pushed simultaneously; o It takes place in case the battery is discharged; * Due to the hardness tester power supply automatic switch off, the time of its operation increases without any additional battery charging. - Page 15 6.2.2.2.1 The meaning of words and symbols on the display “HV” Vickers hardness scale; “838” the measured value on Vickers scale; “Archive #63” - the number of the archive cell in which measurement #838 on Vickers scale (HV) is stored; “battery”...
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Page 16: Calibration" Mode
6.2.2.3.5 Deleting measurement hardness value (375) within the “measurement and recording” operation is made by ? button pushing. It is recommended to delete the last measurement result in case there appear some doubts in the correct measurement procedure. 6.2.2.3.6 Recording in the archive shall be started from selecting the cell number and “archive” operation (paragraph 6.2.2.2.2), after that go to “measurement and archive”... - Page 17 6.2.3.6 “CALIBRATION” OPERATION Select the scale (paragraph 6.2.1.1) and enter into “Calibration” mode. (paragraph 6.2.1.2). 6.2.3.6.1 Enter the code (it is in the sealed envelope inside the Technical Reference and Operation Manual). Push ?button. The display indication in the “Calibration” mode is show on the Figure below (fig.12).
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Page 18: Processing" Mode
? Insert the attached CD into the computer. ? Install USB driver from “InstallDRVMET” file in compliance with the “Instructions for USB driver installation”. ? Install “MET hardness tester” soft-ware going to “InstallMET” file and double clicking on “SETUP_EXE_EXE” file. -
Page 19: Probe Operation
? Operate “MET hardness tester” software going to “All software” in the start menu on your computer. ? In the opened window, of “MET hardness tester” soft-ware, push “?Help” button and set the operation of the computer with the hardness tester in compliance with “Inquiry”... -
Page 20: D1 Dynamic Probe
o Keep the constant effort on the probe body during 3-4 seconds. “Probe” symbol on the display will stop blinking. o After the sound signal and appearance of the hardness value on the electronic probe display, stop making the effort on the probe body. The “probe” symbol on the display will start blinking again, and the probe body will under the spring effort return to the initial position. -
Page 21: Technical Maintenance And Special Conditions Of Operation
o After experimental measurement conducting, push ? button to delete the result and exclude it from the article mean hardness value computation (paragraph 6.2.2.3.5). o After a number of experimental measurements has been conducted for the purpose of acquiring some experience of using the probe, you may use “Clear archive” function to delete the results of the experimental measurements (paragraph 6.2.4.4). -
Page 22: Precautions And Troubleshooting
7.6 TRANSPORTATION 7.6.1 Hardness testers transportation in the carry case shall be only in closed vehicles, where the possibility of mechanical damage or atmospheric precipitation is excluded. 7.6.2The way packed in carry cases hardness testers are located inside the vehicle shall exclude the possibility of their free movement both inside the carry case and inside the vehicle. -
Page 23: Dynamic Probe
Problem Reason Solution Display does not The battery is discharged Charge (p. 5.8.4) or replace (p. 7.4) switch on The battery is not installed Reinstall, observe the indicated correctly polarity (p.5.8.1) Readings on the There is no contact in the Check the connection reliability display do not connector of the probe with the... -
Page 24: Manufacturer's Guarantee And Service Maintenance
The probe is not enough pressed to Conduct the repeated test correctly the tested article (p.6.3.2.3) The hardness reference block Use a new reference hardness surface is covered by the imprints block (p. 6.3.2.6) from the previous measurements U1 ULTRASONIC PROBE The packing on the probe body is Check if it was installed correctly displaced...
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