Tenmars ST-109R User Manual
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Tenmars ST-109R User Manual

Integrating sound level meter
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ST-109R
Integrating Sound Level Meter
User's Manual
HB2ST109R003

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Summary of Contents for Tenmars ST-109R

  • Page 1 ST-109R Integrating Sound Level Meter User’s Manual HB2ST109R003...

  • Page 3: Table Of Contents

    Contents Introduction ..............1 Accessories ..............1 Safety Precaution............. 1 Instrument Description............ 2 Operation ................3 Backlight Button ............4 Start/Pause Measuring ..........4 Data Hold: ..............4 Single Record/ Datalogger Reading......4 Product Setup ............... 5 Integrating Time Setup ..........5 Auto Power Off..............

  • Page 5: Introduction

    ST-109R 1Introduction This Integrating Sound Level Meter (ISLM) is IEC61672-1:2002 Class 1 compliant. 2Accessories Meter User’s Manual AC to DC adaptor Windscreen ball Installation disk USB cable (Mini B type) AC adapter (9~12V/500mA) 1.5V AA-LR6-AM3 alkaline battery 3Safety Precaution Caution! Please refer to this manual.

  • Page 6: Instrument Description

    ST-109R 4Instrument Description 1. Microphone 11. Clock switch/left arrow button 2. Power Button 12. OK button 3. Backlight Button 13. Clock switch/right arrow button 4. Start or Pause Test Button 14. Shift switch/end 5. Frequency Weighting Select Button measurement/down arrow button 6.

  • Page 7: Operation

    ST-109R 5Operation 1. Press button to power on or off your product. 2. Press button to selection measurement mode.  Sound pressure level (SPL)  Equivalent Energy Sound Level (Leq)  Sound exposure level (SEL)  Peak sound pressure (PeakMAX) 3.

  • Page 8: Backlight Button

    ST-109R 5.1 Backlight Button In standby mode，Press button to turn on backlight, press button again to turn it off immediately. ＊Backlight will turn off in 15 seconds automatically. 5.2 Start/Pause Measuring Press button to start integrating Leq/SEL/PeakMAX and MAX/MIN lock-up function with the maximum and minimum values displayed at the lower row of LCD and measurement interval upper row of LCD.

  • Page 9: Product Setup

    ST-109R 5.5 Product Setup Press button to enter set-up mode of this product for the following: Press the button to cycle through the following options: Clock → Auto record → Auto power off → Communication interface → Delete one record → Delete all record → Copy SD card → 94dB calibrate →...

  • Page 10: Analog/Communication Output Interface

    ST-109R 5.8 Analog/Communication Output Interface This product features to computer communication inter-face: USB and RS-232. The RS-232 (TTL) and analog output inter-face shares. You may select USB or RS232 inter-face in the set-up mode. The default value is USB. AC signal output: MAX: 5VP-P/130dB, output impedance around 600Ω...

  • Page 11: 94Db Calibrate

    ST-109R 5.10 94dB Calibrate Input 94dB@1KHZ signal. Last calibration records are displayed at the lower right corner of LCD. Current measurement value is displayed at the lower left corner of LCD. Time weight value is Fast by default. Calibration range: 91dB~97dB.

  • Page 12: Equivalent Free-Field

    ST-109R 5.13 Equivalent Free-Field Frequency Deviation pressure 20-400 1000 1250 1600 2000 2500 3150 4000 5000 6300 8000 10000 12500 16000 20000 10.3 * Microphone specification: ST-109...

  • Page 13: Software Installation

    ST-109R 6Software Installation Operating system support: Windows XP/Windows7 /Windows 8.1/Windows Insert the DVD ROM included with this product in the DVD drive of the  computer connected to this product, click to execute the Installer program. Remove the DVD once the desktop program is installed successfully.

  • Page 14: General Specifications

    ST-109R 7General Specifications Readings display: two rows with maximum value at 1999.  Lower power detection, backlight function, data lock function (HOLD)  Auto power On/Off function  Overload display: "OVER" or "UNDER"  Storage interval: 1 second~ 24 hours; up to 35,000 records.

  • Page 15: Electrical Specification

    ST-109R 8Electrical specification Display Refresh One time per second Rate Major Applicable IEC 61672-1：2002 Class1 Standards IEC60651:1979 TYPE 1 IEC60804:2000 TYPE 1 Microphone High sensitivity, 1/2” pre-polarized capacitor microphone 50 mV/Pa Measurement Items Lxyp,Lxmax,Lxmin,Lxeq,LAE,Lcpeak Measurement 30dB ~ 130dB (A) Range...

  • Page 16: Maintenance Or Repair

    ST-109R 9Maintenance or Repair 1. When the When symbol is displayed on the LCD, it means that there is insufficient power; please change the battery immediately in order to ensure its accuracy. 2. Do not place the meter in locations that have high temperature, humidity or that are exposed to direct sunlight.
  • Page 20 TENMARS ELECTRONICS CO., LTD. 6F, NO.586 Ruiguang Rd, Neihu Dist. Taipei City, Taiwan E-mail: service@tenmars.com http://www.tenmars.com...

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