Lutron SL-4035SD Integrating Sound Level Meter with SD Card Data Logger (IEC Class 2)
LUTRON
₹21,250.00
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LUTRON
Lutron SL-4035SD Integrating Sound Level Meter with SD Card Data Logger (IEC Class 2)
Product Overview:
The Lutron SL-4035SD Integrating Sound Level Meter is an advanced instrument designed for precision sound measurement and data logging, marking a significant step forward in the field of acoustic measurement. Its design and functions are engineered to meet IEC 61672 Class 2 standards for frequency and time weighting. This durable and compact device is equipped with a microcomputer circuit to ensure high accuracy and long-term stability.
Advanced Data Logging and Connectivity:
The SL-4035SD features an innovative real-time SD memory card Datalogger, offering immense flexibility and ease of use.
• SD Card Functionality: The meter saves measured data directly to an SD memory card (supporting 1 GB up to 16 GB capacity) along with comprehensive time information (year/month/date/hour/minute/second).
• Software-Free Analysis: A key feature is the ability to easily transfer the SD card directly to a computer to download all measured values into Excel. This eliminates the need for extra software setup, allowing users to perform further data or graphic analysis instantly.
• Logging Modes: The device supports both automatic datalogger operation (with a sampling time range set from 1 second to 3600 seconds) and manual datalogger capabilities, which allows selection of position/location numbers (1 to 99) to identify measurement locations.
• PC Interface: The unit includes an RS232/USB PC computer interface for enhanced data output and management.
Measurement Functions and Standards Compliance:
The meter provides versatile functionality suitable for various specialized measurement needs, including environmental and occupational noise assessment.
• Multiple Measurements: Capable of displaying Sound Pressure Level (SPL), Equivalent Continuous Noise Level (Leq), Sound Exposure Level (SEL), Maximum Level (MAX-L), and Minimum Level (MIN-L) measurements.
• Frequency Weighting: Features A & C weighting networks that comply with standards.
◦ A Weighting: Simulates the "Human Ear Listening" response, typically selected for environmental sound level measurement.
◦ C Weighting: Provides a near-"FLAT" response, suitable for checking machinery noise (Q.C. check) and determining the overall sound pressure level of equipment.
• Time Weighting: Offers dynamic characteristic modes of Fast (125 ms) and Slow (1 s), allowing users to easily obtain average values of vibration sound level or simulate the human ear response time weighting.
• Hold Functions: Includes Data Hold to freeze the display reading and Peak Hold to keep the maximum measurement value recorded.
User Interface and Design:
The SL-4035SD is designed for heavy-duty use while maintaining user-friendly operation.
• Display: Features a large LCD (52 mm x 32 mm) with a green light backlight for easy reading, even in low-light conditions.
• Range Selection: Supports both auto range (30 to 130 dB) and manual range selection (two ranges: 30 to 80 dB and 80 to 130 dB).
• Microphone: Utilizes an electric condenser microphone with a 0.5" standard microphone head (12.7 mm DIA.) for high accuracy.
• Calibration: A built-in External Calibration VR allows for easy calibration, typically to 94 dB, via a screw driver.
• Power Management: Can be powered by six UM3/AA (1.5 V) batteries or an optional DC 9V adapter, and features Auto Power OFF management (which can be disabled).
• Construction: Housed in a heavy-duty and compact case for excellent portability and durability in various field applications.
Applications:
The Lutron SL-4035SD is an essential tool for monitoring noise in diverse settings, including:
• Industrials
• Schools
• Noise at Work / Occupational Noise
• Environmental and Community Noise
• Vehicle Noise Testing
• Basic sound measurements
Technical Specifications:
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Feature
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Detail
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Model Number
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SL-4035SD
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Manufacturer
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Lutron
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Circuit
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Custom one-chip of microprocessor LSI circuit
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Measurement Type
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Integrating Sound Level Meter (Leq, SEL, SPL, MAX-L, MIN-L)
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Measurement Range
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30 to 130 dB
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Resolution
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0.1 dB
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Accuracy
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Meets IEC 61672 Class 2 standards (Accuracy tolerance varies by frequency)
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Frequency Range
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31.5 Hz to 8,000 Hz
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Frequency Weighting
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A and C networks
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Time Weighting
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Fast (125 ms) and Slow (1 s)
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Range Selection
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Auto range (30 to 130 dB) & Manual range (2 steps: 30-80 dB, 80-130 dB)
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Microphone Type/Size
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Electric condenser microphone, 1/2 inch (12.7 mm DIA.)
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Display
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LCD size: 52 mm x 32 mm with green light backlight (ON/OFF)
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Data Logging
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Real-time SD Card Datalogger
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Memory Card Capacity
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SD memory card (1 GB to 16 GB)
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Datalogger Sampling Time
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Auto: 1 second to 3600 seconds; Manual: 0 second (position 1 to 99)
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Data Output
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RS232/USB PC computer interface
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AC Output
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AC 0.5 Vrms corresponding to each range step (Output impedance: 600 ohm)
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Calibration
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Built-in external calibration VR (94 dB level)
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Power Supply
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6 x DC 1.5 V batteries (UM3, AA) or DC 9V adapter input (optional)
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Operating Temperature
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0 to 50 ℃
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Operating Humidity
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Less than 85% R.H.
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Dimensions
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245 x 68 x 45 mm (9.6 x 2.7 x 1.8/1.9 inch)
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Weight
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Approximately 489 g / 1.08 LB
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Included Accessories
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Instruction manual, Hard carrying case (CA-06)
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