BK Precision 732A User Manual
BK Precision 732A User Manual

BK Precision 732A User Manual

Digital sound level meter
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Model: 732A, 735
Digital Sound Level Meter
USER MANUAL

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Summary of Contents for BK Precision 732A

  • Page 1 Model: 732A, 735 Digital Sound Level Meter USER MANUAL...
  • Page 2: Table Of Contents

    CONTENTS Title Page SAFETY INFORMATION………..……….………….. 1 Environment conditions……………………………..1 Maintenance & Clearing……………………………….1 Safety symbols………………………………………… 1 II. GENERAL DESCRIPTION……………………..…….. 2 III. SPECIFICATIONS..…………………..……………….. 2 IV. NAME AND FUNCTIONS..………….……………….. 5 V. CLOCK & INTV SETUP……….……………….……… 6 DataLogger…………………………………………….. 6 Clock Setup……………………………………………...6 Recording Interval Setup………………………………7 Auto Power Off………………………………………… VI.
  • Page 3: Safety Information

    I. SAFETY INFORMATION Read the following safety information carefully before attempting to operate or service the meter. Use the meter only as specified in this manual; otherwise, the protection provided by the meter may be impaired. Environment conditions  Altitude up to 2000 meters ...
  • Page 4: Specifications

    Auto: 30 – 130 dB Accuracy: ±1.5dB (under reference conditions @ 94dB, 1KHz) Dynamic range: 100 dB (50 dB model 732A) Alarm function: “OVER” is when input is more than the upper limit of range. “ UNDER ” is when input is less than the lower limit of range.
  • Page 5: Name And Functions

    Weight: 285g (including battery) Accessories: 9V battery, carrying case, Screwdriver, Instruction manual. Windscreen, 3.5 ψ plug, software & RS-232 cable (optional model 732A). Specifications and information subject to change without notice. Please visit www.bkprecision.com for the most current product information.
  • Page 6 ○ Windscreen If you operate at wind speed over 10m/sec, please put protective accessories in front of the microphone. ○ Display SYMBOL FUNCTION 4 digits Maximum indication Minimum indication Over range Under range FAST Fast response SLOW Slow response A-Weighting C-Weighting Range Indicate Low-Battery...
  • Page 7 is available to use (model 735). ○ MAX / MIN hold button Press button to enter the maximum and minimum recording mode. Select the proper Level range before using MAX/MIN to ensure that reading value will not exceed the measurement range. Press once to select MAX value. Press again to select MIN value, and press again to select current value with “...
  • Page 8: Clock & Intv Setup

    ○ Signal output terminal AC: 1 Vrms Corresponding to each range step. Output impedance ≒ 100Ω Output signal by standard 3.5mm coaxial socket signal. Note: At “Auto” level range, output signal is Auto select on “Lo” or “Med” or “Hi” level range. DC Signal Ground AC Signal...
  • Page 9: Recording Interval Setup

     Recording Interval Setup: 1: Press and hold the “A/C” button and then power on the meter: 2: Press “FAST/SLOW"(INTV) button: 3: Press "REC" ▲ or "LEVEL" ▼ to increase or decrease number, press “FAST/SLOW " (INTV) to adjust next item, then press “FAST/SLOW”...
  • Page 10: Measurement Preparation

    Time weighting: FAST Measurement mode: MAX MIN Mode function disable. Level range: 50 to 100dB (2) Insert the microphone housing carefully into the insertion hole of the calibrator. (3) Turn on the switch of calibrator and adjust the CAL potentiometer of the unit. The level display will indicate the desired level .
  • Page 11: Setup Testlink Ak-73X (Sound Level Meter)- Rs232 Interface Software

    response to FAST. To measure average sound level, use the SLOW setting. Select A-weighting for general noise sound level and C-weighting for measuring sound level of acoustic material. (3) Select desired Level. (4) Hold the instrument comfortably in hand or fix on tripod and point the microphone at the suspected noise source, the sound pressure level will be displayed.
  • Page 12  Install TestLink: 1.We recommend closing all other applications before installing the TestLink. 2.Insert setup CD disk to CD disk drive. 3.Choose the Start button on the Taskbar and select Run. 4.Type E:\SETUP and choose OK, then it will copy AK73X.exe (executable file) and help file to your hard disk (default is c:\program files\TestLink\AK73X).
  • Page 13 Interface. For better result, the user may close the panel window. Graph Tool Bar - Display or hide Statistic1. - Display or hide Statistic2. - Normal cursor. - When selected, the mouse cursor will become a cross sign when moving to the graph, click on the graph to mark a cross sign on the graph.
  • Page 14 time and value display on top and right side of each cursor. You can move the mouse cursor over cursor A or B and click to drag the cursor to move left or right. Right below the cursor A and B is a slider. You can also click and drag slider to move cursor A or B.
  • Page 15 When you have the Sound Level DATA LOGGER meter connected to PC and select "DataLogger" from main menu or click from tool bar to load recorded data from the meter and there will be a progress indicator to show the loading progress.
  • Page 16 3.If the connection is successful the panel will display the same value as the Sound Level Meter. If it failed to connect the meter with the PC, it will display "No Connection" on the panel window in TestLink AK –73X. 4.When the connection is successful, click to start recording real time data and there will be a waveform on the Real Time Graph Window.
  • Page 17 (3.) How to load the recorded data from the memory of Sound Level Meter and save it to a file ? (Only for the model with Data Logger) 1. Power on the Sound Level Meter. 2. Press the REC button of the meter to start recording data. 3.
  • Page 18  Frequently Asked Question 1. I had connected the Sound Level Meter to PC serial port and turned the meter on, but it still shows "NO CONNECTION". Answer: It could be that all serial port are occupied by other application, close all other application.
  • Page 19 Limited One-Year Warranty B&K Precision Corp. warrants to the original purchaser that its products and the component parts thereof, will be free from defects in workmanship and materials for a period of one year from date of purchase. B&K Precision Corp. will, without charge, repair or replace, at its option, defective product or component parts.
  • Page 20 Service Information Warranty Service: Please return the product in the original packaging with proof of purchase to the address below. Clearly state in writing the performance problem and return any leads, probes, connectors and accessories that you are using with the device. Non-Warranty Service: Return the product in the original packaging to the address below.

This manual is also suitable for:

735

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