Description

Lutron SL-4011 Sound Level Meter

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Sound level meter with A and C weightings and SLOW FAST response CLASS 2 according to IEC 61672. This meter has the additional feature of signal integration over a programmable interval with calculation of SPL (Sound Pressure Level) and Leq (Equivalent continuous noise level). The sound logger is part of the Lutron SD series with logging at intervals from 1 second to 3600 seconds and data saved to SD card in EXCEL format, so further analysis can be readily undertaken

Features Lutron SL-4011 Sound Level Meter

Large LCD display, easy to read
The frequency weighted network is designed to comply with IEC 61672 type 2
A&C weighting network according to standard
Time-weighted dynamic characteristics mode (FAST & SLOW)
AC/DC output for system expansion
Build in adj. VR is available for easy calibration
Condenser microphone for high accuracy & long term stability
max. Hold function to store maximum value on display
Warning indicator for over and under load
LCD display for low power consumption & clear reading even in bright ambient light conditions
Using durable and long-lasting components, including a strong and lightweight ABS plastic casing
Small and lightweight design allows one-handed operation
Low battery indicator

Specifications Lutron SL-4011 Sound Level Meter

Display	18mm (0.7″) LCD (Liquid Crystal Display), 3 1/2 digits
Functions	dB (A & C frequency weighted), time weighted (Fast, Slow), Max. hold down, AC & DC output
Measurement Range	3 ranges, 30 to 130 dB, input signal only
Resolution	0.1 dB
Accuracy	The frequency weighting complies with IEC 61672 type 2, calibrating the input signal at 94 dB(31.5 Hz to 8 kHz), then the accuracy of the A weighting is determined as follows: 31.5 Hz – ± 3 dB, 63 Hz – ± 2 dB, 125 Hz – ± 1.5 dB 250 Hz – ±1.5 dB, 500 Hz – ±1.5 dB, 1 kHz – ±1.5 dB 2 kHz – ± 2 dB, 4 kHz – ± 3 dB, 8 kHz – ± 5 dB
Frequency Weighting Network	* Characteristics A & C. * Weighting – Characteristics are simulated in response to “Human Ear Listing”. Usually, when measuring environmental noise levels, always select the A weighting. * C-weighted – Characteristics approximate a “FLAT” response. Typical, suitable for checking engine noise (Q.C. check) & knowing the sound pressure level of the equipment under test.
Frequency	31.5 Hz to 8,000 Hz
Calibrator	B & K (Bruel & kjaer), multifunction acoustic calibrator, model: 4226
Microphone	Electric condenser microphone
Microphone size	standard 1/2 inch size
Range selector	30 to 80 dB, 50 to 100 dB, 80 to 130 dB, 50 dB at each step, with over & under range indication
Time weighting (Fast & Slow)	Fast – t= 200 ms, Slow – t = 500 ms, * “Fast” range simulated human ear response time weight. * The “slow” range is easy to get an average value of sound vibration level.
Calibration	* Build in external calibration VR, easy to calibrate with external screw driver. * Internal oscillation system, 1 KHz sine wave generator.
Output Signal	* AC Output – AC 0.5 Vrms corresponding to each step of the range. * DC output – 0.3 to 1.3 VDC DC, 10 mV per dB. * Output impedance – 600 ohms.
Output terminals	3.5 telephone output terminals are provided for connection with analyzers, level recorders, tape recorders
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 6mA
Dimensions	255 x 70 x 28 mm (10.0×2.8×1.1 inches)
Weight	280 g/0.62 lb (including battery)

Standard 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

Lutron SL-4011 – Datasheet

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