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BAQ dynaROCK III User Manual

Rebound (leeb) hardness tester
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dynaROCK III
User Manual
Version 1.0

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Summary of Contents for BAQ dynaROCK III

  • Page 1 III User Manual Version 1.0...
  • Page 2 Manufacturer’s Address Manufacturer’s Address BAQ GmbH Hermann-Schlichting-Str. 14 D-38110 Braunschweig Tel.: +49 5307 / 95102 - 0 Fax: +49 5307 / 95102 - 20 Mail: info@baq.de Made in Germany...
  • Page 3 Contents of this manual, including texts, graphics and diagrams, are protected by copyright. They are left to the customer exclusively for purposes of operation and maintenance. For any duplication, distribution or modification of these contents, partially or as a whole, a written permission of the owner BAQ GmbH must be obtained.
  • Page 4 Table of Contents Table of Contents Safety and Liability ........................ 6 Introduction ..........................6 Safety Notes..........................6 Liability ............................ 7 Appropriate Use ........................7 Scope of Delivery ........................8 Specification ......................... 9 Introduction to the Hardness Testing Method acc. to Leeb ........... 11 Measuring Principle .......................
  • Page 5 Table of Contents 5.7.2 Serial Series ........................34 Description of the Test Procedure ..................35 Result Logs and Data Transfer ....................37 5.9.1 Copy of the Series to USB Stick ..................37 5.9.2 Format of .csv files ......................37 System Settings ........................40 Language ..........................
  • Page 6 ▪ Assign qualified supervision for new personnel. ▪ The dynaROCK III is a sensitive device and should not be subjected to mechanical risks like shocks or strong vibrations. ▪ Before starting to clean the equipment, switch it OFF and disconnect the USB cable.
  • Page 7 Arbitrary modification of the instrument or connected accessories. In case of doubt, always consult factory service beforehand! ▪ Exchange of components by items not released by the manufacturer. Original BAQ spare parts are prescribed. ▪ Use of accessories not recommended by the manufacturer.
  • Page 8 2 Scope of Delivery Scope of Delivery: Basic unit dynaROCK III Impact device type D Probe cable dynaROCK III ↔ Impact device Power supply (100-240 VAC; 50/60 Hz; 1.5 A) USB cable (USB-A ↔ USB-C) USB-Stick with manuals (PDF) Transport case Adjustable strap Adapter USB-A ↔...
  • Page 9 Specification 3 Specification Table 1: Specification dynaROCK III Dimensions 154 x 84 x 23 mm (H x W x D) Weight 430 g 3.5“-TFT-LCD color display Display 640 x 480 Pixel Battery pack Integrated Lithium-Ion-Battery, 6800 mAh Operating time approx. 12 h Charge time approx.
  • Page 10 1 HL Testing direction Adjustable HL, HV, HB, HRC, HRB, HRA, N/mm² Hardness scales (depending on impact device) Table 3: Accuracy and repeatability dynaROCK III Hardness of Impact device type Error of reading Repeatability Leeb test block 760 ± 30 HLD ±...
  • Page 11 Note that the influence of gravity must be taken into consideration, so the dynaROCK III enables the impact direction to be adjusted, to compensate for possible errors. HL hardness results are dimensionless. It is important to know that they do not only depend on the hardness, but also on other properties of the material under test.
  • Page 12 Introduction to the Hardness Testing Method acc. to Leeb 4.2 Main Applications The dynaROCK III is a mobile hardness testing instrument making use of the Leeb method. It is intended for metals. Main applications include: ▪ Incoming inspection ▪ Quality control during running production ▪...
  • Page 13 Introduction to the Hardness Testing Method acc. to Leeb In this context, besides the surface structure, the sample thickness and weight as well as its homogeneity have to be mentioned. Strong scattering of results or major deviations may be caused by excessive roughness or insufficient sample thickness or weight.
  • Page 14 Introduction to the Hardness Testing Method acc. to Leeb If the maximum roughness depths specified in Table 4 are exceeded, the sample surface may be prepared e.g. by means of abrasive paper. Partial whetting of the test point is sufficient. Support for samples ▪...
  • Page 15 Furthermore, it is imperative that the size of the impression considerably exceeds the grain size. 4.3.3 Regular Functional Control Combined with the impact devices, the dynaROCK III offers - if correctly used - a stable system with a long lifetime. Nevertheless, regular inspections are strongly recommended. This includes: ▪...
  • Page 16 With increasing number of tests on hardened components, the carbide ball in the impact body becomes flattened and must be exchanged – otherwise no more accurate results can be expected. As soon as the results do not meet the requirements described above anymore, return the equipment to BAQ for calibration.
  • Page 17 Introduction to the Hardness Testing Method acc. to Leeb 4.4 Selection of Impact Devices In addition to impact device type D already included in the standard delivery, various models for hardness tests acc. to Leeb are available, meeting the needs in different applications. They are illustrated in Fig.
  • Page 18 Introduction to the Hardness Testing Method acc. to Leeb The different impact devices are equipped partially with different impact bodies, which consequently entail different impact energy and indentation size. The following table shows a selection of indentation diameters and depths for three sample hardness results, depending of the impact device in use.
  • Page 19 Fig. 4: Structure, operating elements and connections Table 6: Connections and operating elements Designation Description Lights up with reduced brightness if the dynaROCK III Status-LED is being charged when switched OFF. After switching ON, this element is lit permanently. Interface for charging and data transfer to PC or USB USB-C stick.
  • Page 20 If the instrument is switched ON however, charging process becomes visible by a flash in the battery symbol within the status line. If the dynaROCK III is being charged when it is switched OFF, the status LED lights up with reduced brightness.
  • Page 21 Operation Text Input Saving measuring data or parameters requires text input. In these situations, a text input window is opened, e.g. when entering a name for a series measurement (see Fig. 5). Fig. 5: Text input dialog The current text (here: Crankshaft SN 1297) is shown in the corresponding field, selectable characters appear below.
  • Page 22 Operation Number Input For input of numbers, corresponding fields are provided. Digits in these fields can be changed individually, by moving the cursor to the desired position by ◄ and ►. The active position is marked, and the corresponding value can be increased or lowered by ▲ and ▼. A further position can be added in leading position by ◄...
  • Page 23 Selection Dialogs There are selection dialogs at various points in the dynaROCK III, e.g. if a series or serial series is to be continued, deleted, displayed or transferred to a USB stick. Fig. 7 shows the selection of a series of a serial series as an example.
  • Page 24 Operation Preparation Before initiating the actual measurement, use a suitable Leeb hardness test block to check functionality. Daily verification is recommended. Furthermore, it is essential that the sample is appropriate for Leeb-testing. If required, the sample has to be prepared according to instructions in chapter 4.3.2.
  • Page 25 Operation Material This field shows the current material group. Within the Measurement window, it can be changed by MAT key. Hardness Scale The results are displayed by means of the specified scale, with the Leeb hardness serving as reference scale. After selection of another scale, the results are transformed, if possible (refer to Appendix 1: Conversion ranges).
  • Page 26 If a mobile printer is connected, the feature of logging measuring results line-by-line, can be switched ON and OFF by means of this selector switch. If no printer is connected to the dynaROCK III, the function is not available. If instant printout is activated, deleting measuring results is no more possible.
  • Page 27 Operation 5.5 Measurement Window 5.5.1 Overview and Settings Fig. 9: Measurement window Table 7: Measurement window Designation Description Hardness Value and Scale Last result with assigned hardness scale. Limits Individually specified tolerance limits. Impact direction Selected impact direction (0°, 45°, 90°, 135°, 180°) Result History The last five results are displayed.
  • Page 28 Operation Immediate visual supervision is simplified by partially colored presentation of the results, both within the Measurement window (hardness result and history) and in the Statistics window for display of individual results (refer to chapter 5.5.2). The color coding is as follows: Table 8: Color Coding of Measuring Results Color Meaning...
  • Page 29 Operation MAT-key: This function is used to change the material. It is possible to decide within the systems settings whether a change takes place by automatic selection of the following material or via dialog window (refer to chapter 6.3). If the currently selected hardness scale is not defined for the material chosen, the hardness scale automatically returns to HL.
  • Page 30 Operation 5.5.2 Statistics Window The statistic window is called up when: ▪ The number (n) of measurements specified in the measurement parameters has been reached, ▪ the STAT-key is pressed, ▪ a series of a serial series is complete, ▪ or a series is opened from the menu Data management / Display series.
  • Page 31 Operation Pressing the STAT-key from Statistic windows changes over to the display of individual results. All results of the series are listed and numbered, color coded as described in Table 8. Fig. 11 shows the display of individual results matching Fig. 10. Fig.
  • Page 32 Operation 5.6 Management of Measurement Parameter Sets Generally, the measurement parameters specified under chapter 5.4, are provided. The system enables combinations of these parameters to be implemented and stored with a user defined name, so the desired parameter set may quickly be retrieved. However, this function requires that an impact device that corresponds to the type defined in this parameter set has been connected beforehand.
  • Page 33 5.7 Management of Series and Serial Series Up to 1.000.000 results may be stored within the internal memory of the dynaROCK III, all of them organized in series of measurements. A measurement series is defined as a set of results, recorded in form of single series or serial series.
  • Page 34 Operation 5.7.2 Serial Series A serial series measurement is composed of single series, all of them with identical measurement parameters and the same quantity of measurements. Within the serial series, the series are numbered consecutively, all of them with the same designation. A serial series therefore represents a comfortable tool to summarize series with identical parameters, e.g.
  • Page 35 Operation 5.8 Description of the Test Procedure In order to perform a test by means of the dynaROCK III, an impact device must be connected and the Measurement window opened. Before initiating actual measurements, perform a functional control acc. to chapter 4.3.3.
  • Page 36 Use the release button at the upper end of the impact device to initiate the measurement. It is essential that sample and impact device remain stably fixed in position the course of the test. After completion, the detected hardness value is immediately displayed on the dynaROCK III, accompanied by an acoustic signal.
  • Page 37 USB stick. A USB stick together with manuals is included in the delivery, to be connected via adapter (USB A ↔ USB C), part of the delivery as well, to the dynaROCK III. Generally, the USB stick in use has to be formatted as FAT32 with MBR.
  • Page 38 Operation 776;0;2024;9;23;10;51; <reading 1> …. <more readings> 774;0;2024;9;23;10;51; <reading5> Summary serial series Version; <(1, 0, 0)> Impact device;<Probetype> Name;<file name> Lower tolerance limit;<e.g. 0> Upper tolerance limit;<e.g. 0> Material name;<e.g. Steel and cast steel> Hardness scale ;<e.g. HLD> Number of series;<e.g. 25> Number of readings per series;<e.g.
  • Page 39 Operation …… <more readings> 329;0;2024;9;24;11;52; <reading 5> …….. <more subordinate single series> Series name;< name of subordinate single series: 25> Number of readings;<e.g. 5> Mean value;<e.g. 320.8> Minimum;<e.g. 315> Maximum;<e.g. 328> Standard deviation;<e.g. 4.5> rel. Standard deviation;<e.g. 1.41> Value /<Hardness scale>;Impact direction*;Year;Month;Day;Hour;Minute;Deleted 315;0;2024;9;24;12;18;...
  • Page 40 System Settings 6 System Settings The following sections describe possibilities for changing the default system settings. 6.1 Language Specify the desired language in the selection dialog under System / Language, confirm it by OK and press ENTER key. 6.2 Time and Date Time and date can be manually altered under menu point System / Set Date and Time, whereas the date format is chosen under Configuration (refer to chapter 6.3).
  • Page 41 To each impact device, an individual calibration value is assigned which must be stored within the dynaROCK III. For every device type, an own value can be implemented. Values of devices already included in the delivery have been stored by the manufacturer.
  • Page 42 III, the client himself is responsible for charging the calibration value. This value can be found on the USB stick included in the delivery. Connect the USB stick to the dynaROCK III, and implement the calibration by menu point System / Impact device calibration.
  • Page 43 Error message „2-24 No impact device connected“ originates from a perturbed connection, which may be due to the dynaROCK III itself, the connecting cable or the impact device. Inspect the cable and all connectors including the pins inside the sockets respectively plugs.
  • Page 44 Troubleshooting log file is solely for troubleshooting by BAQ. To send the file to BAQ, it can be transferred to a USB stick via the menu point System / Copy error log to USB and then sent by email to service@baq.de.
  • Page 45 Do not use sharp objects, aggressive substances or scouring agents. Storage and Transport The dynaROCK III as well as accessories have to be stored in the case provided, in a dry, clean and dust-free environment. The cutouts within the case inlay reliably protect the content, so always make use of that case whenever transporting or shipping the instrument.
  • Page 46 Maintenance and Support Disposal The dynaROCK III is not admitted for removal by conventional domestic, industrial or commercial waste. In case of need, consult us for information about correct removal of electronic equipment.
  • Page 47 Appendix 1: Conversion ranges 9 Appendix 1: Conversion ranges Table 9: Conversion areas Impact device type Material Hardness scale D / DC D+15 20.0 – 68.4 19.7 – 67.7 20.1 – 63.2 20.7 – 67.8 38.4 – 99.5 47.7 – 99.9 38.4 – 99.5 81 –...
  • Page 48 Appendix 1: Conversion ranges Impact device type Hardness scale Material D / DC D+15 20.4 – 67.1 19.8 – 68.1 20.7 – 67.9 Cold work tool steel 80 – 898 81 – 933 100 – 932 19.6 – 62.4 46.5 – 101.7 Stainless steel 85 –...
  • Page 49 10 Appendix 2: Order information Instrument and instrument accessories Item-No. Description Rebound hardness tester dynaROCK III with impact device D, HLD test 22-100 block, USB charger, robust aluminum housing and BAQ factory certificate. Rebound hardness tester dynaROCK III As item 22-100, but without...
  • Page 50 Appendix 2: Order information Impact devices and impact device accessories Item-No. Description Impact device D for hardness tester dynaROCK Standard impact device 22-120 for most hardness testing tasks Impact device DL for hardness tester dynaROCK Impact device with thin 22-121 extension (Ø4.2 mm), e.g.
  • Page 51 Ø120 x 70 mm, 6.17 kg Possible hardness values: 500±40 HLG, 590±40 HLG Repair and calibration Item-No. Description Calibration of Leeb hardness tester including BAQ quality certificate. R-RP-KAL-01 Test measurements on certified test blocks. DAkkS calibration for Leeb hardness tester with impact device D R-RP-KAL-02 according to DIN EN ISO 16859-2 made by an official DKD accredited laboratory.
  • Page 52 Appendix 2: Order information Table 10: Complete set of support rings (available as an option) Skizze des Aufsetzringes Anmerkungen For convex surfaces Z10-15 R10 - R15 For convex surfaces Z14.5-30 R14.5 - R30 For convex surfaces Z25-50 R25 - R50 For concave surfaces HZ11-13 R11 - R13...
  • Page 53 BAQ GmbH Hermann-Schlichting-Str. 14 38110 Braunschweig Deutschland Tel: +49 5307 / 95102 - 0 Fax: +49 5307 / 95102 - 20 Mail: info@baq.de / service@baq.de Web: www.baq.de...