User Manual for Benetech GT1355B Decibel Meter

Introducció

This user manual provides comprehensive instructions for the operation, maintenance, and troubleshooting of your Benetech GT1355B Decibel Meter. This device is designed for accurate measurement of sound and noise levels, suitable for various environments including home, classroom, and industrial settings. Please read this manual thoroughly before using the device to ensure proper and safe operation.

Producte acabatview i Característiques clau

The Benetech GT1355B Decibel Meter, a compact and ergonomic device for sound level measurement.

The GT1355B is designed to be lightweight and portable, making it easy to carry and use in various locations.

• A/C Weighted Measurement: The decibel meter utilizes a condenser microphone to accurately measure sound levels from 30 to 130 dB (A) and 35 to 130 dB (C), with an accuracy of ±1.5 dB. It covers a frequency range from 31.5 Hz to 8,500 Hz.
  

  Illustration of A-weighting for human ear perception and C-weighting for equipment noise measurement.

• Pantalla LCD fàcil de llegir: The backlit LCD screen provides clear visual representation of noise data, including Max value. Users can switch between fast/slow time weighting and freeze current readings. An indicator light and screen color change provide visual alerts when sound levels exceed set alarm values.
  

  Detallada view of the LCD screen showing various indicators like date, time, battery, measurement range, and data graph.
• Real-Time Monitoring & Data Recording: The SPL meter can store up to 43,000 sets of data. Data can be imported to a PC via the USB port for real-time sampling, analysis, downloading, printing charts, and deletion. The device also allows setting date, automatic shutdown time, and features a low battery indicator.
  

  The device supports saving up to 43,000 sets of data, which can be managed via PC connection.

• Long-Lasting Battery & Portability: Equipped with a non-slip rubber grip, the meter is easy to handle. It features 1/4-inch mounting threads for tripod attachment, allowing for extended monitoring. A 1.5-hour charge provides up to 8 hours of standby time.
  

  The decibel meter charges via a USB-C port, offering quick charging and extended duration.

  

  The device can be mounted on a stand for continuous monitoring, as shown with a small tripod.

Contingut del paquet

The Benetech GT1355B Decibel Meter package includes the following items:

• 1x Benetech GT1355B Decibel Meter
• 1x USB Cable (for charging and data transfer)
• 1 x manual d'usuari

Components del producte

Familiarize yourself with the different parts of your decibel meter:

Diagram illustrating the key components of the Benetech GT1355B Decibel Meter, including the condenser microphone, windproof sponge, alarm indicator light, LCD screen, control buttons, tripod mounting screw holes, calibration knob, and Type-C port.

• Micròfon de condensador: High-precision sensor for sound capture.
• Windproof Sponge: Reduces wind noise interference during measurements.
• Llum indicador d'alarma: Provides visual alerts for sound level thresholds.
• LCD Backlight Screen: Displays measurement data, graphs, and settings.
• Botons de control:
  • Power On/Off / Confirm Key (Red button)
  • Move up/Increment/Hold
  • Left/Back/Zoom Out Line Chart
  • Right/Enter/Enlarge Line Chart
  • Shift Down/Decrement
• Tripod Mounting Screw Holes: For attaching the device to a stand.
• Calibration Knob: Used for fine-tuning calibration.
• Port de tipus C: For charging and connecting to a PC.

Configuració

1. Càrrega del dispositiu

Before first use, fully charge the decibel meter. Connect the provided USB cable to the Type-C port on the device and the other end to a standard USB power adapter (not included) or a computer's USB port. The battery indicator on the LCD screen will show charging status. A full charge takes approximately 1.5 hours and provides up to 8 hours of standby time.

2. Engegada inicial

Press and hold the red power button (usually located at the bottom center of the control panel) for a few seconds until the LCD screen illuminates.

3. Configuració de la data i l'hora

Upon first power-on or after a long period of disuse, you may need to set the date and time. Tap the red power button once the device is on to cycle through various settings. Use the navigation buttons (left/right/up/down) to adjust values and the red button to confirm.

The device offers various settings including LCD backlight, low battery indicator, auto power off, and date & time settings.

Instruccions de funcionament

1. Encendre/apagar

• To turn on: Press and hold the red power button until the screen lights up.
• To turn off: Press and hold the red power button until the screen turns off.

2. Measurement Modes (A/C Weighting & Fast/Slow)

The GT1355B supports both A and C frequency weighting, and Fast and Slow time weighting.

• Ponderació A: Simulates the human ear's response to sound, commonly used for environmental noise measurements.
• Ponderació C: Provides a flatter response, suitable for measuring the true sound level of machinery or peak noise.
• Fast Time Weighting: Responds quickly to changes in sound level, ideal for fluctuating or unsteady noise.
• Slow Time Weighting: Provides an averaged reading, suitable for measuring steady-state noise.

Use the "A/C" button to switch between A and C weighting, and the "F/S" button to switch between Fast and Slow time weighting.

Explanation of Fast and Slow time weighting for different noise measurement scenarios.

3. Lectura de la pantalla

The LCD screen displays the current decibel reading, along with a real-time graph of sound level changes. It also shows minimum (min) and maximum (max) values recorded during the current measurement session.

4. Visual Alarm Function

The device features a visual alarm system that changes the screen color and activates an indicator light when sound levels exceed predefined thresholds.

• Setting Alarm Thresholds: Navigate to the alarm settings menu using the control buttons. You can set a low alarm value (e.g., yellow alert) and a high alarm value (e.g., red alert). Ensure the high alarm value is greater than the low alarm value.
• Indicació d'alarma:
  • Blue Screen: Sound level is below both alarm thresholds.
  • Yellow Screen: Sound level is between the low and high alarm thresholds.
  • Red Screen: Sound level exceeds the high alarm threshold.

Visual representation of the three-color alarm system: blue for normal, yellow for low alarm exceeded, and red for high alarm exceeded.

Screenshot showing the interface for customizing yellow and red alarm thresholds.

5. Data Recording and Transfer to PC

The GT1355B can record up to 43,000 data sets. To initiate recording, press the "REC" button. To transfer data to a PC:

1. Connect the decibel meter to your PC using the provided USB cable.
2. The device should be recognized as a storage device or a serial port.
3. Install the dedicated software (typically provided on a mini-CD or available for download from the manufacturer's weblloc).
4. Use the software to perform real-time data sampling, download recorded data, analyze charts, print reports, and delete data from the device.

Note: The software is compatible with Windows operating systems. macOS (iOS) is not supported for data transfer and analysis.

The decibel meter supports real-time measuring, data import to PC, storage of lab format files, data saving, saving as Excel, and printing data via dedicated Windows software.

Manteniment

• Neteja: Feu servir un drap suau i sec per netejar el dispositiu. No utilitzeu productes de neteja abrasius ni dissolvents.
• Emmagatzematge: Store the device in a cool, dry place away from direct sunlight and extreme temperatures. If storing for extended periods, ensure the battery is partially charged (around 50%) to prolong its lifespan.
• Cura del micròfon: Keep the microphone and windproof sponge clean and free from dust or debris to ensure accurate readings.

Resolució de problemes

Especificacions

The device is equipped with a 1/2 condenser microphone, offering high precision with ±1.5 dB accuracy and 0.1 dB resolution across a wide frequency range.

A chart illustrating typical noise levels and their potential impact, ranging from very quiet (0-20dB) to extremely deafening (above 120dB).

Garantia i Suport

Your Benetech GT1355B Decibel Meter comes with a 12-month warranty. For any questions, technical assistance, or warranty claims, please contact Benetech customer service. Our support team is available 24/7 to assist you.

Note: The device is factory calibrated to a standard of 94 dB @ 1kHz before shipment.