BRUEL & KJAER 3207 User Manual
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BRUEL & KJAER 3207 User Manual

BRUEL & KJAER 3207 User Manual

Tapping machine
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Tapping Machine Type 3207
User Manual
English BE 1557 – 13

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Summary of Contents for BRUEL & KJAER 3207

  • Page 1 Technical Documentation Tapping Machine Type 3207 User Manual English BE 1557 – 13...
  • Page 3 Tapping Machine Type 3207 From serial number 2 148 096 User Manual BE 1557 − 13 July 2007...
  • Page 4 Safety Considerations This apparatus has been designed and tested in accordance with IEC 61010 – 1 and EN 61010 – 1 Safety Require- ments for Electrical Equipment for Measurement, Control and Laboratory Use. This manual contains infor- mation and warnings which must be followed to ensure safe operation and to retain the apparatus in safe condition. Special note should be made of the following: Safety Symbols The apparatus will be marked with this symbol when it is important that you refer to the associated warning...

  • Page 5: Table Of Contents

    Measuring Impact Sound Insulation ......................2 Weighting..............................2 How Much is Too Much? ........................... 3 Construction of Tapping Machine Type 3207.................... 4 CHAPTER 2 A Complete Measurement System ..................... 5 A Complete Measurement System for Architectural and Building Acoustics ..........5 Use of 2260-D/BZ-7204..........................
  • Page 6 Charging Regulator on the Battery Option ....................29 Hints and Tips about Maintenance and Adjustment ................29 Safety Tips............................... 30 CHAPTER 6 Service and Guarantee ........................31 APPENDIX A Type 3207 Specifications ........................33 Compliance with Regulations and Environmental Standards..............33 Specifications ............................34...

  • Page 7: Chapter 1 Introduction

    This chapter describes procedures for measuring building acoustic properties such as airborne and impact noise insulation. Chapter 2 covers Brüel & Kjær solutions for building acoustic measurements. The rest of the manual covers the operation and maintenance of Tapping Machine Type 3207 and its specifications.

  • Page 8: Measuring Impact Sound Insulation

    Tapping Machine Type 3207 – User Manual 1.2.2 Measuring Impact Sound Insulation For impact sound insulation, a different sound source has to be used, but otherwise the procedure is similar to that for airborne sound. A standardised impact sound generator (tapping machine) is used. This consists of hammers of stand- ardised weight that drop from a standardised height at a standardised repetition rate.

  • Page 9: How Much Is Too Much

    CHAPTER 1 Introduction Fig. 1.3 Single-number result (LnTw) is calculated by Area < 32 dB shifting the reference curve LnTw upwards in 1 dB steps until the measured spectrum exceeds the reference curve by less than (but as close as possible 500 Hz to) a sum of 32 dB.

  • Page 10: Construction Of Tapping Machine Type 3207

    Tapping Machine Type 3207 – User Manual Construction of Tapping Machine Type 3207 Tapping Machine Type 3207 is a standard tapping noise generator. It can be used for tapping noise measurements to national and international standards. The unit is available with an optional mobile power source (battery pack) and a wireless remote control.

  • Page 11: A Complete Measurement System

    PC in the field. In addition, the calculation of sound insulation curves and indexes can be done on the spot. Fig. 2.1 2260-D Investigator with Tapping Machine Type 3207 The following additional components complete the system: • OmniPower Sound Source Type 4296 •...

  • Page 12: Use Of 2260-D/Bz-7204

    Tapping Machine Type 3207 – User Manual Fig. 2.2 The basic measuring system with Tapping Machine Type 3207 KE-0358 Flight Case 2716 Power Amplifier 4292 OmniPower 7830 Qualifier 2260-D AQ-0667 (with BZ-7204) Bridging Cable AQ-0673 Cable (10m) Brüel & Kjær...

  • Page 13: Positions And Average

    CHAPTER 2 A Complete Measurement System Each partition has a set of (L1), L2, B2 and T2 that consist of one or more positions of each. For each partition the sound insulation can be calculated on the basis of the average of all positions of (L1), L2, B2 and T2.

  • Page 14: Reuse Of Information

    Tapping Machine Type 3207 – User Manual To check the quality of decays, it is possible, for each position, to look at the decay in each frequency band (see Fig. 2.5). Fig. 2.5 Decay at 500 Hz for a typical measurement 2.2.4...

  • Page 15: Printing

    CHAPTER 2 A Complete Measurement System Generally the sound insulation is calculated (for each partition) from the average of all the positions of L1, L2, B2 and T2. It is possible to exclude positions from the average to see what effect certain positions have on the result.

  • Page 16: Flexible Reverberation Averaging

    Tapping Machine Type 3207 – User Manual Fig. 2.8 3D Multispectra, showing reverberation decay curves displayed in Qualifier Using Qualifier’s spreadsheet-like datasheets, it is also possible to manually adjust data used in calcula- tions, for example, to change levels or reverberation times. The result can be observed immediately.
  • Page 17 CHAPTER 2 A Complete Measurement System Table 2.2 Calculated Parameters Standard ÖNORM ASTM None Country Sweden Germany Austria Switz. Italy France Spain Holland ASTM Basic ISO 140 ISO 140 ISO 140 ISO 140 ISO 140 ISO 140 ISO 140 ISO 140 ISO 140 E336, ISO 140...
  • Page 18 Tapping Machine Type 3207 – User Manual...

  • Page 19: User Guide For The Tapping Machine

    Chapter 3 User Guide for the Tapping Machine Before Use Fig. 3.1 The tapping machine with housing on and support legs folded away in carrying position Remove the housing (1) by removing the two screws (2) with the added hexagon wrench (Fig. 5.1). The hammers (4) are fixed with cable ties (3) to the upper guide plate (5) to enable safe transportation.
  • Page 20 Tapping Machine Type 3207 – User Manual Fig. 3.2 Safety ties for transportation If the battery option is installed, the battery (6) must have its negative terminal reconnected. Do this by plugging the blue cable labelled −B to the negative terminal (7).

  • Page 21: Initial Start-Up

    CHAPTER 3 User Guide for the Tapping Machine Initial Start-up Clean the hammers’ impact surfaces (9) with a dry cloth or tissue paper to remove any oil so as to avoid staining or dirtying the floor. In extreme cases, use paraffin to clean the impact surfaces. Fig.

  • Page 22: Measuring

    Tapping Machine Type 3207 – User Manual Fig. 3.6 The Control Panel Measuring The tapping machine is now ready to be used and can be switched on directly (21) (Fig. 3.6) (switch position II “On”) or via the optional remote control (23) (Fig. 3.7). The remote control needs to be connected to the remote control socket (22) (Fig.

  • Page 23: Hints And Tips

    CHAPTER 3 User Guide for the Tapping Machine Fig. 3.7 The tapping machine and its accessories: Mains adaptor (17), Battery kit (19) and Remote control (23) For tapping machines with battery option, you should guard against accidentally switching the machine on during transportation.
  • Page 24 Tapping Machine Type 3207 – User Manual...

  • Page 25: Options And Accessories

    Pocket Transmitter Analyzer 2260D (incl. generator) Brüel & Kjær Type 2260 Tapping Machine 3207 050127 Fig. 4.2 You can connect the remote control unit with a cable and Remote Control Kit appropriate connector to the tapping machine and a sound UA-1476 consists of level meter.

  • Page 26: Using Remote Control Kit Ua-1476

    Tapping Machine Type 3207 – User Manual 4.1.3 Using Remote Control Kit UA-1476 Hints and Tips • Avoid using the sender or transmitter in the proximity of metallic objects as these have a shielding effect that may influence the radio signal •...

  • Page 27: Remote Operation Via Cable Aq-0633

    CHAPTER 4 Options and Accessories Using the Receiver Unit Fig. 4.4 The receiver unit 3) The receiver unit has no onboard power supply – it is operational as long as it is connected to the remote socket on the tapping machine and the On/Off switch of the tapping machine is set to position I “Remote”.

  • Page 28: Remote Control Using Third Party Remote Control Systems

    Tapping Machine Type 3207 – User Manual Fig. 4.5 Using Cable AQ-0633 for remote control of the tapping machine by 2260-D Investigator 4.1.5 Remote Control using Third Party Remote Control Systems You can operate the tapping machine remotely with a third party remote control system. The details of the connections are shown in Fig.

  • Page 29: Battery Option

    CHAPTER 4 Options and Accessories If the remote unit is to be both battery and mains powered, for reliable operation, the unit must be capable of accepting voltages of 10.5 – 24 V DC. Battery Option 4.2.1 General Fig. 4.7 Battery Kit UA-1477 If your tapping machine is not equipped for battery option, you can install Battery Kit UA-1477.
  • Page 30 Tapping Machine Type 3207 – User Manual Installing the Kit 1) Mount the charging regulator circuit board (24) below the motor on the upper guide plate (5) − (Fig. 4.8), between the hammer guide rods, so that the end with the two cables +B (red) and (blue) (49) is towards the vertical chassis plate (11) on which the motor is mounted.

  • Page 31: Battery Operation

    CHAPTER 4 Options and Accessories Fig. 4.9 Pull tight and trim end Fixing the battery in position with cable ties Pull tight and trim end 980448/1 10) Check that the On/Off switch is set to position 0 “Off” – if not, set it to this position to prevent the tapping machine from starting up as you connect the battery.
  • Page 32 Tapping Machine Type 3207 – User Manual...

  • Page 33: Routine Maintenance

    Chapter 5 Routine Maintenance General The tapping machine does not require any special maintenance except for the periodic cleaning and oiling of the hammers. This is not only necessary to prevent corrosion but also to keep the friction of the hammers low to guarantee the right speed of the hammers at impact. The interval between cleaning and oiling of the hammers should not exceed 20 hours of operation.

  • Page 34: Tapping Machine Equipped With Battery

    Tapping Machine Type 3207 – User Manual Tapping Machine Equipped with Battery The battery is basically maintenance free. However, if the tapping machine is not used for extended periods of time, you need to recharge the battery for a day every three months using the mains adaptor.

  • Page 35: Charging Regulator On The Battery Option

    CHAPTER 5 Routine Maintenance Deviation from the Vertical of the Hammer Drop Path by more than ± 0.5° Adjusting the inclination of the tapping machine is described in section 3.2, along with setting the correct drop height via the adjustable feet. Deviation from the given Drop Height (40 mm) by more than ±...

  • Page 36: Safety Tips

    Tapping Machine Type 3207 – User Manual Lubrication The oil used for lubricating the moving parts of the tapping machine must be totally acid- and resin- free. Oil should not be allowed to contaminate any of the electrical components. We recommend that you use only the supplied lubricating oil.

  • Page 37: Service And Guarantee

    Chapter 6 Service and Guarantee From the date of purchase (or production, if the purchase date is not known) the tapping machine (accessories included) is guaranteed for one year by the manufacturer. The guarantee covers the repair or replacement of all damaged parts due to traceable faulty manufacture or materials, free of charge. The manufacturer accepts no other liability or responsibility.
  • Page 38 Tapping Machine Type 3207 – User Manual...

  • Page 39: Type 3207 Specifications

    Appendix A Type 3207 Specifications Compliance with Regulations and Environmental Standards CE-mark indicates compliance with: EMC Directive and Low Voltage Directive. C-Tick mark indicates compliance with the EMC requirements of Australia and New Zealand. Remote Control UA-1476: CE-mark means compliance with R & TTE Directive 1999/5/EC.

  • Page 40: Specifications

    Tapping Machine Type 3207 – User Manual Specifications STANDARDS – Weight: 80 g (2.82 oz.) ISO 140, ISO 717, DIN 52210, BS 5821, ASTME 492 BATTERY KIT UA-1477 (optional) HAMMERS Mounting Position: Internally in unit housing Five in line, 100 mm between each hammer, single hammer weight Battery Life: 1.5 hours typically...
  • Page 41 Index Hints ....................17 Housing ..................13 AC/DC adaptor ................. 4 Accessories ..................19 After measuring ................16 Impact sound Assessment and reporting ............... 9 Generator ..................2 Insulation ..................2 Pressure Level ................2 B2 Background noise in receiving room........... 6 Pressure Level Weighted Standardised ........2 Battery Inclination ..................15 Installation .................
  • Page 42 Tapping Machine Type 3207 – User Manual OmniPower ..................5 Specifications..................33 Receiver unit .................. 21 Start-up ...................15 Remote control ................ 16, 17 Support legs..................15 Cable ..................21 Kit UA-1476 ................20 Operation................... 19 T2 Reverberation time in the receiving room........6 Socket ................16, 22 Tapping Machine Type 3207 ............4...
  • Page 44 HEADQUARTERS: DK-2850 Nærum · Denmark · Telephone: +45 4580 0500 · Fax: +45 4580 1405 · www.bksv.com · info@bksv.com Australia (+61) 2 9889-8888 · Austria (+43) 1 865 74 00 · Brazil (+55)11 5188-8161 · Canada (+1) 514 695-8225 China (+86) 10 680 29906 · Czech Republic (+420) 2 6702 1100 · Finland (+358) 9-521 300 · France (+33) 1 69 90 71 00 Germany (+49) 421 17 87 0 ·...

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