LUTRON SL-4011 Sound Level Meter

LUTRON SL-4011 Sound Level Meter

The Lutron SL-4011 is a versatile and easy-to-use digital sound level meter designed for precise measurement of sound levels across a wide range of applications. Its lightweight, ergonomic design allows for one-hand operation, making it ideal for environmental noise assessments, quality control, and sound pressure level testing in various industries.

Key Features:

• Large LCD display: 18 mm (0.7″) easy-to-read screen with 3 ½ digits, ensuring clear readouts even in bright conditions.
• Max Hold function: Stores the maximum sound level recorded, allowing users to easily review the highest measurements.
• A & C weighting networks: Conforms to IEC 61672 Type 2 standards. A-weighting is designed to reflect the human ear’s response to sound, while C-weighting offers a flatter response, ideal for machinery noise measurement and sound pressure testing.
• Time weighting modes: FAST (200 ms) and SLOW (500 ms) dynamic characteristics provide flexibility in measuring both fluctuating and steady noise levels.
• Overload indicator: Alerts users when input signals exceed the meter’s range.
• AC/DC output: Allows integration with external systems, such as recorders and analyzers, for further data processing.
• Built-in VR adjustment: Enables easy calibration with an external screwdriver.
• Condenser microphone: Ensures high accuracy and long-term stability in sound level measurement.
• Durable design: Housed in a lightweight yet sturdy ABS plastic case, making it highly portable and suitable for field use.
• Low battery indicator: Informs the user when the battery is running low to ensure uninterrupted operation.

LUTRON SL-4011 Sound Level Meter Specifications:

• Display: 18 mm (0.7″) LCD, 3 ½ digits.
• Measurement range: 3 selectable ranges, 30-80 dB, 50-100 dB, 80-130 dB (with over and under range indication).
• Resolution: 0.1 dB.
• Accuracy: ±1.4 dB at 1 kHz (A-weighting), with specific accuracy for other frequencies between 31.5 Hz and 8 kHz.
• Frequency weighting networks:
  • A-weighting: Simulates the human ear’s response, ideal for environmental sound measurements.
  • C-weighting: Offers a nearly flat frequency response, suitable for testing machinery noise.
• Time weighting:
  • FAST: 200 ms, simulates the human ear’s response time to noise changes.
  • SLOW: 500 ms, ideal for averaging fluctuating noise levels.
• Microphone: ½-inch standard electric condenser microphone.
• Calibration: External calibration VR for easy adjustment.
• Output signal:
  • AC output: 0.5 Vrms corresponding to the selected range.
  • DC output: 0.3 to 1.3 VDC, 10 mV per dB.
• Output terminal: 3.5 mm phone jack for connection to analyzers, recorders, or other systems.
• Operating conditions: 0°C to 50°C (32°F to 122°F), less than 80% relative humidity.
• Power supply: 9V battery (006P heavy-duty type).
• Power consumption: Approximately 6 mA.
• Dimensions: 255 x 70 x 28 mm (10.0 x 2.8 x 1.1 inches).
• Weight: 280 g (0.62 lb, including battery).

Included Accessories:

• Instruction manual: 1 PC.

Optional Accessories:

• 94 dB Sound Calibrator (Model: SC-941).
• 94 dB/114 dB Sound Calibrator (Model: SC-942).
• Hard carrying case (Model: CA-06).

The Lutron SL-4011 is a reliable and user-friendly sound level meter, perfect for professionals who require precise and consistent sound level measurements in various environments.