ennoLogic eS528L User Manual
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ennoLogic eS528L User Manual

Sound level meter
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eS528L Sound Level Meter
User Manual

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Summary of Contents for ennoLogic eS528L

  • Page 1 Sound Level Meter User Manual...
  • Page 2 Sound Level Meter ennoLogic eS528L Made in China User Manual Version 1.1. Revised 5/10/2019. © 2019 ennoLogic . All rights reserved. ® https://ennologic.com...

  • Page 3: Table Of Contents

    Table of Contents 1. Overview ....................1 1.1 Important Safety Notes – Please Read ......... 2 1.2 Meter Description ................3 1.3 LCD Display ................... 4 1.4 Battery Installation and Replacement .......... 5 2. How to Use Your Sound Level Meter ..........6 2.1 Taking a Measurement ..............
  • Page 4 2.9 Calibration ..................13 3. TECHNICAL SPECIFICATIONS ............14...

  • Page 5: Overview

    1. Overview Thank you for purchasing the ennoLogic eS528L sound level meter. This meter is a precision instrument designed to measure and display sound levels in decibel (dB) from 30 to 130 dB. Special features include data logging, frequency weighting (A & C), response time selection (Fast &...

  • Page 6: Important Safety Notes - Please Read

    1.1 Important Safety Notes – Please Read Please read the following safety instructions and user manual carefully before you use this instrument:  Do not remove the mesh cover on the microphone as this will cause damage and affect the accuracy. ...

  • Page 7: Meter Description

    1.2 Meter Description 1. Foam Windshield Ball 2.1/2-inch Microphone 3. LCD Display 4. Power Button 5. MAX/MIN Button 6. A/C frequency Weighting Button 7. Range Selector Button 8. Backlight Button 9. Fast/Low Response Time Button 10. Data Hold Button 11. Record Button 12.

  • Page 8: Lcd Display

    1.3 LCD Display 1. Under-range indicator: reading is below the selected range. Switch to a lower range or set to auto-range. 2. Analog bar-graph and range indication 3. Fast/Slow response time indicator 4. Reading of sound level 5. Low battery indicator 6.

  • Page 9: Battery Installation And Replacement

    7. Data recording icon 8. Memory-full indicator 9. Meter connected to PC via USB indicator 10. Data hold indicator 11. MAX/MIN mode indicator 12. Over-range indicator: reading exceed the selected range. Switch to a higher range or set to auto-range. 13.

  • Page 10: How To Use Your Sound Level Meter

    will appear on the bottom left of the LCD. Replace the 9V battery following the instructions above. Disposal: Check with your local waste disposal and recycling authorities for responsible environmentally sound disposal or recycling of batteries. In the event you need to dispose of your instrument please do not place it in household waste.
  • Page 11 A weighting is commonly used for measuring general noise levels. It emulates the response of the human ear. C weighting is typically used for peak measurements and more accurately characterizes low frequency noise. 3） Press the F/S button to select the desired response time. “FAST”...

  • Page 12: Selecting Decibel Ranges

    2.2 Selecting Decibel Ranges This sound level meter has three manual ranges as well as auto-range mode. It defaults to auto-ranging on power-up with a range of 30-130dB. The manual ranges are: 30–90dB, 50–110dB, and 70–130dB. Use the RANG button to select the preferred range. The selected range will display in the top left and right of the LCD.

  • Page 13: Data Hold

    displayed value will not update until a higher sound level value is detected. However, the analog bar graph will continue to reflect the instantaneous readings. To capture minimum sound levels, press the MAX/MIN button again, the MIN indicator will appear on the LCD.

  • Page 14: Data Recording And Software Installation

    PC. The latest version of this software and detailed instructions on how to install and use it can be found at https://ennoLogic.com/eS528L A CD with the software is included for your convenience, but we recommend downloading the latest version at the ennoLogic website.

  • Page 15: Analog Output

    2.7 Analog Output The meter can output AC and DC voltage signals proportional to the measured values for other recorders or devices. A 3.5mm stereo mini plug is required for the outputs. AC Output An AC signal corresponding to the frequency-weighted signal is available at this connector.

  • Page 16: Dc Output

    Load impedance: ≥1MΩ 2.8 External Power The eS528L sound level meter can be powered by an external 9V DC supply or via its Micro USB port. The power jack for the external 9V supply is located on the right side of the unit, below the Micro USB port.
  • Page 17 2.9 Calibration The sound level meter calibration requires a standard acoustic calibrator (94dB, 1kHz sine wave). Remove the back cover of the meter by unscrewing the four screws at the corners. Keep the battery compartment closed and the battery connected. Locate the calibration potentiometer near the top of the circuit board.
  • Page 18 3. TECHNICAL SPECIFICATIONS Applicable standards IEC61672-1: 2013 Class 2 Measurement range Auto: 30 to 130 dB, Manual: 30–90 dB, 50–110 dB, and 70–130 dB Microphone 1/2 inch polarized condenser microphone Frequency range 31.5Hz ~ 8000 Hz Accuracy ±1.5 dB (at reference condition of 94 dB and 1 kHz) Resolution 0.1 dB...
  • Page 19 Outputs AC and DC signal output from earphone jack: AC=4Vrms±100mVrms at full-scale, DC=10 mV/dB Data output Micro-USB Auto power off After 20 minutes of idle Power One 9V battery (6LR61 or 6F22) Memory 32000 data points Operating condition 32 ~ 122 °F (0 ~ 50 °C)，10 ~ 90% RH (non-condensing) Storage condition -4 ~ 140 °F (-20 ~ 60 °C)，10 ~ 90% RH...
  • Page 20 PO Box 25207 Eugene, OR 97402...

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