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MASHPROJECT TKM-459CE Operation Manual

Portable ultrasonic hardness tester
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NPP Mashproject LLC
Saint-Petersburg, Russia
PORTABLE ULTRASONIC
HARDNESS TESTER TKM-459CE
Operation manual
TKM-459CE OM
1

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Summary of Contents for MASHPROJECT TKM-459CE

  • Page 1 NPP Mashproject LLC Saint-Petersburg, Russia PORTABLE ULTRASONIC HARDNESS TESTER TKM-459CE Operation manual TKM-459CE OM...

  • Page 2: Table Of Contents

    TKM-459CE OM TABLE OF CONTENTS: 1 DESCRIPTION OF THE HARDNESS TESTER ........4 1.1 INTENDED USE AND FUNCTIONS ......... 4 1.2 OPERATING PRINCIPLE ............5 1.3 TECHNICAL CHARACTERISTICS .......... 6 1.3.1 Basic technical characteristics ........6 1.3.2 Hardness tester probes ..........10 1.3.3 Additional devices and accessories ......
  • Page 3 TKM-459CE OM 2.10 SETTING DIAGRAM THRESHOLDS ......... 35 2.11 SCALE CORRECTION ............35 2.11.1 General information ............ 35 2.11.2 Scale correction ............36 2.11.3 Additional correction setup ........38 2.11.4 Correction deletion ............. 39 2.11.5 Additional correction name setup ......39 2.12 POWER SAVING MODE SETTINGS ........

  • Page 4: Description Of The Hardness Tester

    TKM-459CE hardness testers (hereinafter referred to as “hardness tester”) as well as respective operation, transportation, and storage rules. Based on ASTM and DIN norms.

  • Page 5: Operating Principle

    TKM-459CE OM This additional correction can be programmed either by the user with test blocks made from the respective material or by the manufacturer upon the user’s request. The hardness tester is designed for use in laboratories, workshops, and field environments.

  • Page 6: Technical Characteristics

    TKM-459CE OM The basic components of the hardness tester are the probe and the electronic unit for data conversion and measurement processing. The metal shaft, forming a part of the hardness tester, has a diamond pyramid fixed on its end.The shaft oscillates at its own resonance frequency.
  • Page 7 TKM-459CE OM Limits of hardness measurement absolute error, main scales: Brinell Within (90...150) НВ ±10 НВ Within (150...300) НВ ±15 НВ Within (300...450) НВ ±20 НВ Vickers Within (240...500)HV ±15 HV Within (500...800)HV ±20 HV Within (800...940)HV ±25 HV Hardness tester electronic unit overall 121 х...
  • Page 8 TKM-459CE OM Hardness tester rated operation conditions Air temperature From -15 to +35 °С Relative humidity 30 – 80 % Atmospheric pressure 84 – 106,7 kPa Calibration period 1 year Hardness tester service life 5 years Number of potential additional...
  • Page 9 TKM-459CE OM Number of samples required to set up 1 or 2 additional corrections for hardness tester scales Number of samples required for 2 to 10 (to be defined additional scales setup by the user) Piecewise linear or Intermediate interpolation of...

  • Page 10: Hardness Tester Probes

    TKM-459CE OM • Number of results falling outside Statistical the range set up by the user (outside processing bigger/ less limit), maximum deviation from upper/ lower limit • In reference to average value • In reference to value set up by the user Plotting of charts •...
  • Page 11 TKM-459CE OM Probes are designed to generate a frequency signal that transmitting information regarding the hardness of the article under inspection. The probe consists of a casing and a protective cap. Inside the casing, there is a spring-loaded steel shaft with a diamond pyramid and a limit switch, which, when closed, initiates a resonance frequency measurement command.
  • Page 12 TKM-459CE OM 100 N (10 kg) 50 N (5 kg) 50 N (5 kg) Average nominal diameters of dents (mm) left on the surfaces of arti- cles during hardness measurement are listed in Table 3. Table 3 Reference 103 HB...

  • Page 13: Additional Devices And Accessories

    TKM-459CE OM Table 4 Reference 103 HB 209 HB 406 HB 763 HV designation (103 HV) (212 HV) (420 HV) (63,0 HRC) of the probe (42,5 HRC) А, К, AL 0,066 0,045 0,037 0,025 Н 0,033 0,027 0,020 0,014 С...

  • Page 14: Requirements For Articles Under Inspection

    TKM-459CE OM A stand for measuring with UCI probes A, H, C enables precise positioning of the probes and articles being inspected. It ensures the probe is perpendicular to the test surface, prevents movement on surface during measurement. The use of a stand...
  • Page 15 TKM-459CE OM Table 6 Minimum thickness of Probe reference designation the article under inspection, mm А, К, AL Specified thickness values may vary depending on the geometrical dimensions and hardness of the article. If the thickness of the article under inspection is less than specified, during measurements it will be necessary to additionally adhere to the requirements of section 1.3.6 “Measurements on light and thin-walled...

  • Page 16: Working With Non-Carbon Structural Steel Articles

    TKM-459CE OM Table 8 Radius of curvature, mm Probe reference designation Convex Concave А, Н, С, AL К The minimum diameter of the spot of article’s surface under inspection is according to Table 9. Table 9 Probe reference designation Spot radius, minimum, mm А, Н, С, К, AL...
  • Page 17 TKM-459CE OM To determine the presence of additional errors, it is necessary to compare measurement results obtained using the hardness tester with results obtained using a static device. If the divergence in results does not exceed the maximum error of the hardness tester, it implies that these materials can be inspected without additional correction.

  • Page 18: Measurements On Light And Thin-Walled Articles

    TKM-459CE OM During sample fabrication, it is recommended to follow the ASTM E140 standards for hardness samples concerning roughness and geometric dimensions. This includes additional limitations, specifically a minimum sample thickness (height) of 10 mm. In case of deviation from these standards (which is not recommend- ed), the following conditions must be met: •...
  • Page 19 TKM-459CE OM • Roughness should be kept to a minimum. Optimal roughness should not exceed Ra 0.4 µm • Non-flatness should be maximum 0.005 mm • The modulus of elasticity of the plate metal (Young’s modulus) should be close to that of the article under inspection •...

  • Page 20: Measuring Of Hardened Surface Layers, Galvanic Coatings, And Surface Deposits Hardness

    TKM-459CE OM 1.3.7 MEASURING OF HARDENED SURFACE LAYERS, GALVANIC COATINGS, AND SURFACE DEPOSITS HARDNESS Depending on the type of probe used and the hardness of the article, the probe pyramid penetrates the article to different depths (refer to section 1.3.2 “Hardness tester probes”, Table 4). Plastic deformation of the metal occurs at considerably greater depths.

  • Page 21: Completeness Of The Hardness Tester

    TKM-459CE OM • Cold work, occurring in the surface layer after lathe and mill ma- chining and coarse grinding • Cold hardening • Martensite spots with excessive hardness, occurring due to surface overheating. The presence of these layers (detectable with the hardness tester) significantly affects UCI hardness tester readings.

  • Page 22: Design Of The Hardness Tester

    TKM-459CE OM Soft case Strap for securing the device on the arm Carrying and storage bag Additional set A-type probe H-type probe C-type probe K-type probe AL-type probe Special head "U-459" 1.5 DESIGN OF THE HARDNESS TESTER 1.5.1 CONSTRUCTION From a functional viewpoint, the hardness tester comprises an electronic unit and a probe (see section 1.3.2 “Hardness tester...
  • Page 23 TKM-459CE OM The rear panel of the hardness tester displays a tag with the manufacturer’s serial number. The hardness tester control — switching of scales and settings, additional corrections and scales setup, measurement results, memorisation, and analysis etc. - is performed by means of the device keyboard.

  • Page 24: Menu Navigation

    TKM-459CE OM 1.5.2 HARDNESS TESTER MENU NAVIGATION The complete setting list (operational parameters etc.) of the hardness tester, except for the selection of work scales, (see «General structure of the menu», Table 11), is accessed through the graphical menu. The device menu is multilevel, organised to enhance usability by grouping logically connected settings into categories, with sub-menus provided for each respective menu item.
  • Page 25 TKM-459CE OM Table 11 Menu point Function Art. Scale *** Hardness scale selection 2.10 Setting the averaging parame- Average ters (sample size and rejection 2.11 of extreme values) Setting the modes of displaying Output the results (numeric or dia- Data 2.12...

  • Page 26: Marking And Sealing

    TKM-459CE OM Probe Mode of primary probe's signal Edit scale 2.16.5 signal ** reading Energy Setting of automatic shutdown Settings 2.17 saving of the device, backlight mode Functions for working with the Memory 2.18 data archive Hardness tester shutdown 2.20...

  • Page 27: Hardness Measurement Procedure

    TKM-459CE OM • With additional corrections to scales • With additional scales Measurements by the hardness tester are conducted following the hardness measurement procedure outlined below (section 2.2 “Hardness measurement procedure”). The hardness tester operates during measurement in accordance with the scale and settings selected by the user in the menu (see section 1.5 “Design of the hardness tester”).

  • Page 28: Powering On And Preparation For Work

    TKM-459CE OM you may continue pressing the probe until the cap limits the copression of the probe spring (press “as far as it will go” – the acoustic signal will sound beforehand). ATTENTION ! • Avoid impacts and slipping of the probe against the surface under inspection when placing or removing the probe.
  • Page 29 TKM-459CE OM Additional correction Units of or scale name measurement Area of Result of measurement measurement results in the series Number of measurements inthe series Area of additional and average statistics value Battery charge Probe type indicator Name of data...

  • Page 30: Procedure For Hardness Measurement On Inspected Articles

    TKM-459CE OM 2.4.5 Perform minimum 5 measurements on each sample (test blocks) in accordance with section 2.2 “Hardness measurement procedure” and calculate the average value. It is recommended to calculate average value by selecting respective sample size and by using the respective hardness tester functions (see section 2.6 “Measurements mode”).

  • Page 31: Measurements Mode

    TKM-459CE OM 2.5.4 Check hardness tester serviceability as per section 2.4 “Hardness tester serviceability check”. 2.5.5 If necessary, select measurement scale and additional correction as per section 2.6 “Measurements mode”. 2.5.6 If necessary, set up averaging parameters (generally, recommend- ed sample size - minimum 5) as per section 2.11 “Setting averaging parameters”...

  • Page 32: Setting Averaging Parameters

    TKM-459CE OM The scales are selected using the buttons with their names and units of measurement displayed in the appropriate place on the display. Quick selection of the main scales is also performed using the buttons When switching scales, the hardness tester automatically converts the results into the selected scale.

  • Page 33: Displaying Data On The Screen

    TKM-459CE OM To return to the menu, click the button, or select the “Ok” button image and press the button. NOTE: You can use the virtual keyboard to enter digits (e.g. the sample size). To do this, select a numeric parameter and press the button.

  • Page 34: Setting Control Thesholds

    TKM-459CE OM 2.9 SETTING CONTROL THRESHOLDS Select the menu items <DATA PROCESSING> - <LIMITS> to enter the mode. In the appeared window (Fig. 7), choose the alarm type (no alarm, more/ less than the threshold, out of range) and the threshold values themselves using the buttons .

  • Page 35: Setting Diagram Thresholds

    TKM-459CE OM 2.10 SETTING DIAGRAM THRESHOLDS To enter the mode, select the menu items <DATA PROCESSING> - <FIGURE>. In the appeared window (Fig. 8), use the buttons to set the limits of the figure. Use the virtual keyboard to set numeric values. (see the note in section 2.11 “Setting averaging parameters”).

  • Page 36: Scale Correction

    TKM-459CE OM During the hardness tester supply process, all additional corrections are equal with correction of respective hardness tester scale (if not set up in advance upon user’s request). Correction may be carried out either with two or with one test block (sample).
  • Page 37 TKM-459CE OM NOTE Password is: Then, it is expected that the display of the hardness tester will conform to Figure 9. Unit of measure Name of scale or additional correction Result field Average readings Figure 9 Carry out several measurements (at least 5) following section 2.2.

  • Page 38: Additional Correction Setup

    TKM-459CE OM If you are performing correction with one test block, press button The display will confirm the completion of correction with one test block, after which the hardness tester will return to the menu. If correction with two test blocks is being carried out, perform measurements on the second test block as described above.

  • Page 39: Correction Deletion

    TKM-459CE OM Before correcting with a hardness sample, it is necessary to follow the procedures outlined in section 1.3.6 “Measurements performed on light and thin-walled articles”. To enter additional correction mode, select the necessary hardness tester scale and additional correction to be defined (see section 2.6 “Measurements mode”).

  • Page 40: Power Saving Mode Settings

    TKM-459CE OM 2.12 POWER-SAVING MODE SETTINGS To configure energy-saving modes, select the menu items <SETTINGS> - <ENERGY SAVING>. Then, in the appeared window (Fig. 12), use the buttons to set the automatic shutdown time and the duration for display backlight to turn off.

  • Page 41: Creating A New Block

    TKM-459CE OM 2.13.2 CREATING A NEW BLOCK To create a new block, select the <MEMORY> menu item. Next, in the «Memory» window (Fig. 13), use the buttons to select the “+” button image and press Then, in the subsequent window (Fig.

  • Page 42: Deletion Of A Block

    TKM-459CE OM 2.13.4 DELETION OF A BLOCK To delete a data block, navigate to the «Memory» window (see section 2.14.2 “Creating a new block” and Fig. 13), use the buttons select the “X” button image and press 2.13.5 VIEWING BLOCK DATA To view the recorded results within a block, select the <RESULTS>...

  • Page 43: Clearing The Block

    TKM-459CE OM Figure 16 2.13.7 CLEARING THE BLOCK To delete all data from the block, select the menu item <CLEAR> in the block menu. 2.13.8 BLOCK NAME CHANGE To change the name of the block, select the menu item <NAME> in the block menu.

  • Page 44: Hardness Tester Shutdown

    TKM-459CE OM To recharge the battery, connect the hardness tester to a charger or a USB port on a computer using a USB cable. While charging, the battery icon on the display will periodically fill with colour. ATTENTION! Do not leave the device unattended during the charging.

  • Page 45: Safety Measures

    TKM-459CE OM Avoid sharp fluctuations in air temperature and relative humidity to prevent dew formation in the storage area. 4.3. If the storage period exceeds two months, the batteries should be removed from the electronic unit. 5. SAFETY MEASURES 5.1 The hardness tester is a technically sophisticated device that requires careful handling.
  • Page 46 TKM-459CE OM 7.1 The manufacturer hereby guarantees that the hardness tester complies with the requirements, “The Hardness Testers: Portable, Ultra- sonic, Model ТКМ-459CE,” for the entire warranty period. The warranty period for the hardness tester is 24 months from the date of purchase (up to a maximum of 30 months from the date of...

  • Page 47: Acceptance Certificate

    TKM-459CE OM 8. ACCEPTANCE CERTIFICATE The hardness tester ТКМ-459CE, serial number ________, complies with the requirements and is certified as fit for operation. Date of issue: Person in charge for acceptance: _____ _______________202____ ____________________/____________ Stamp Date of sale *: Supplier:...
  • Page 48 TKM-459CE OM NPP Mashproject LLC Phone: +7 (812) 337-55-47 Address: Vatutina street, 17 letter K, Saint-Petersburg, 195009, Russia https://mashproject-ndt.com mail@mashproject.ru...

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