Digital Sound Level Meter - SL-4010 - Bismillah Scientific Co.

The SL-4010 Digital Sound Level Meter provides accurate and reliable measurements of sound level, making it an essential tool for various industrial, environmental, and HVAC applications.

Exceptional Features of the SL-4010:

1. Economical and High Accuracy: Offers high accuracy in measuring sound levels at an economical cost, meeting IEC 61672 class 2 standards.
2. Large LCD Display: Features a large LCD display for easy readout and low power consumption, even in bright ambient light conditions.
3. A Frequency Weighting: Uses the “A” frequency weighting network designed to simulate human ear listening response, complying with IEC 61672 class 2 standards.
4. Fast Time Weighting: Incorporates a “Fast” time weighting characteristic mode, simulating the human ear response to sound.
5. Durable and Portable: Constructed with a strong, lightweight ABS plastic housing, allowing for one-handed operation and durability in various environments.

Specifications
Circuit	: /
Display	: 18 mm (0.7″) LCD (Liquid Crystal Display), 3 1/2 digits.
Measurement Range	: 35 to 130 dB, 3 ranges: range 1 – 35 to 80 dB, range 2 – 50 to 100 dB, range 3 – 80 to 130 dB, Each range with warning indicator for over & under load.
Resolution	: 0.1 dB.
Function	: /
Accuracy	: Characteristics of “A” frequency weighting network meet IEC 61672 class 2.
	: Under 94 dB input signal, the accuracy are:
	: 31.5 Hz – ± 3.5 dB, 63 Hz – ± 2.5 dB, 125 Hz – ± 2.0 dB
	: 250 Hz – ± 1.9 dB, 500 Hz – ± 1.9 dB, 1 kHz – ± 1.4 dB
	: 2 kHz – ± 2.6 dB, 4 kHz – ± 3.6 dB, 8 kHz – ± 5.6 dB
Frequency Weighting Network	: Characteristics of “A” frequency weighting network.
	: Weighting Network The “A weighting” characteristic is simulated as “Human Ear Listing” response
Data hold	: Hold function to freeze the display value.
Peak hold	: /
Time weighting	: Default to “Fast” time weighting characteristics. “Fast time weighting” is simulated the human ear response character
Range selector	: /
Frequency	: /
Microphone type	: Electric condenser microphone.
Microphone size	: 1/2 inch standard size.
Calibration VR	: Build in external calibration VR, easy to calibrate on 94 dB level by screw driver.
Calibrator	: B & K (Bruel & kjaer), multi-faction acoustic calibrator,	Model: 4226
Datalogger Sampling Time Setting range	: /
Memory Card	: /
Advanced setting	: /
Over Indication	: /
Data Hold	: Hold function to freeze the display value.
Memory Recall	: /
Sampling Time of Display	: /
Data Output	: /
AC output	: /
Power off	: /
Operating Temperature	: 0℃ to 50℃ (32℉ to 122℉).
Operating Humidity	: Less than 80% RH
Power Supply	: 006P DC 9V battery (heavy duty type).
Power Current	: /
Weight	: 250 g/0.55 LB (including battery).
Dimension	: 225 x 70 x 28 mm (8.9 x 2.8 x 1.1 inch).
Accessories Included	: /
Optional Accessories	: 94 dB Sound Calibrator,	Model: SC-941.
	: 94 dB/114 dB Sound Calibrator,	Model: SC-942.
	: Sound wind shield ball,	Model: SB-01.
	: Hard carrying case,	Model: CA-06.

Technical Specifications
Display	: LCD, 3 1/2 digits.
Display	Type	: 18 mm (0.7″) LCD, 3 1/2 digits
Measurement Functions
Sound Level Range	: 35 to 130 dB, 3 ranges
	: Sound Level Range 1	: 35 to 80 dB
	: Sound Level Range 2	: 50 to 100 dB
	: Sound Level Range 3	: 80 to 130 dB
Resolution	: 0.1 dB
Frequency Range	: 31.5 Hz to 8,000 Hz
Frequency Weighting	: A weighting network
Time Weighting	: Fast time weighting
Accuracy	: 31.5 Hz	: ±3.5 dB
	: 63 Hz	: ±2.5 dB
	: 125 Hz	: ±2.0 dB
	: 250 Hz	: ±1.9 dB
	: 500 Hz	: ±1.9 dB
	: 1 kHz	: ±1.4 dB
	: 2 kHz	: ±2.6 dB
	: 4 kHz	: ±3.6 dB
	: 8 kHz	: ±5.6 dB
Microphone	: Electric condenser microphone, 1/2 inch standard size
Calibration	: External calibration VR, easy to calibrate on 94 dB level by screw driver

General Specifications:

Operating Temperature: 0 to 50℃ (32 to 122℉)
Operating Humidity: Less than 80% RH
Power Supply: 006P DC 9V battery (heavy duty type)
Power Consumption: Approx. DC 6 mA
Dimensions: 225 x 70 x 28 mm (8.9 x 2.8 x 1.1 inch)
Weight: 250 g (0.55 lb, including battery)

Accessories Included:
Instruction Manual: 1 PC

Optional Accessories:
94 dB Sound Calibrator (Model: SC-941)
94 dB/114 dB Sound Calibrator (Model: SC-942)
Sound Wind Shield Ball (Model: SB-01)
Hard Carrying Case (Model: CA-06)

Advanced Features:

Data Hold Function: Freezes the display value for convenient recording.
Over and Under Range Indicator: Alerts for over and under range conditions.
Low Battery Indicator: Alerts when the battery is low, ensuring continuous operation.
Calibration Adjustment: Built-in adjustment VR for easy calibration.
Compact and Lightweight: Allows for one-handed operation and easy portability.

Applications:

Environmental Monitoring: Measure sound levels in various environmental studies.
HVAC Systems: Check sound levels in heating and cooling systems.
Industrial Maintenance: Monitor sound conditions in various industrial applications.

Invest in the SL-4010 Digital Sound Level Meter for precise and reliable sound level measurements, ensuring high performance and versatility in various industrial, environmental, and HVAC applications.