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
HB2ST109R001

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Summary of Contents for Tenmars ST-109R

  • Page 1 ST-109R Integrating Sound Level Meter User’s Manual HB2ST109R001...

  • Page 2: 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 .......

  • Page 4: Introduction

    ST-109R 1 Introduction This Integrating Sound Level Meter (ISLM) is IEC61672-2002 Class 1 compliant. 2 Accessories 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 3 Safety Precaution Caution! Please refer to this manual.

  • Page 5: Instrument Description

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

  • Page 6: Operation

    ST-109R 5 Operation 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 7: Backlight Button

    ST-109R 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. 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 8: Product Setup

    ST-109R 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 →...

  • Page 9: Analog/Communication Output Interface

    ST-109R 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 10: 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 11: Microphone Extension Test

    ST-109R 5.12 Microphone Extension Test To avoid measurement deviation due to the reflection effect and invalid operations you may measure integrating sound levels by extending the microphone with an extension cord.  Press button to power off this product.  Turn the pre-amplifier and microphone...

  • Page 12: Sensitivity Correction

    ST-109R 5.13 Sensitivity Correction 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 Software Installation Operating system support: Windows XP/Windows7 /Windows 8.1/Windows 10  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 7 General 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 ...

  • Page 15: Electrical Specification

    ST-109R 8 Electrical specification Display One time per second Refresh Rate Major IEC 61672：2002 Class1 Applicable IEC60651:1979 TYPE 1 Standards IEC60804:2000 TYPE 1 High sensitivity, 1/2” pre-polarized Microphone capacitor microphone 50 mV/Pa Measurement Lxyp,Lxmax,Lxmin,Lxeq,LAE,Lcpeak Items Measurement 30dB ~ 130dB (A)
  • Page 16 ST-109R The max support capacity of micro SD Micro SD card is 32GB； 37,000 data about story space 300KB Card Peak value 70~133 dBC measurement range Time Fast, Slow, Impulse, Peak Weighting Frequency A/C/Z Weighting Frequency 20Hz~16KHz Range DC Output...

  • Page 17: Maintenance Or Repair

    ST-109R 9 Maintenance 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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