Product Description

Lutron SL-4013 Sound Level Meter

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sound meter It is an ideal tool for daily use such as sound level measurement in entertainment venues, machinery noise, and industrial combustion system noise. or even different environmental sounds

Features Lutron SL-4013 Sound Level Meter

Large LCD display, easy to read
The frequency weighted network is designed to comply with IEC 61672 class 2
Auto range & mammal range
A&C weighting network according to standard
Fast & Slow dynamic characteristic mode
AC output for system expansion
RS232/USB computer interface
Separate sound probe, easy for remote sound measurement
Build in adj. VR is available for easy calibration
Hold & Record memory (max., min.)
Condenser microphone for high accuracy & stability
Peak Hold function to store the maximum value
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 tough lightweight ABS plastic casing
Compact and lightweight plastic housing

Specifications Lutron SL-4013 Sound Level Meter

Display	52 mm x 32 mm LCD (Liquid Crystal Display), 5 digits
Functions	dB (A & C frequency weighted), Time weighted (Fast, Slow), Hold
Memory	(max. & min.), peak hold, AC & RS232 output
Measurement Range	30 – 130 dB
Resolution	0.1 dB
Accuracy	The frequency weighting complies with IEC 61672 class 2, calibrating the input signal at 94 dB ( 31.5 Hz to 8 KHz), then the accuracy of the frequency weighting is determined as follows: 31.5 Hz – ± 3 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 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	* Auto range: 30 to 130 dB. * Manual range: 3 ranges, 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	The “Fast” & “Slow” time weighting ranges are designed for IEC 61672 class 2 requirements
Output Signal	AC Output – AC 0.5 Vrms corresponding to each step of the range
Output impedance – 600 ohms	RS232 output
Output terminals	Terminal 1 : RS232 computer interface terminal. Terminal 2 : AC output terminal. Terminal socket size: 3.5mm diameter. telephone socket
VR Calibration	Build in external calibration VR, easily calibrated at 94 dB level by screwdriver
Operating Temperature	0℃ to 50℃(32℉ to 122℉)
Operating Humidity	Less than 80% RH
Power Supply	006P DC 9V Battery (Alkaline type or heavy duty)
Power Consumption	Approx. DC 6mA
Dimensions	* Main instrument: 205 x 68 x 29 mm (8.07×2.7×1.1 in) * Sound probe: 170.5 x 24.5 x 19 mm (6.7×1.0×0.7 in)
Weight	405 g/0.89 lb (including probe)