Product Description

Lutron SL-4112P Sound Level Meter

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Features Lutron SL-4112P Sound Level Meter

Large LCD display, easy to read
Frequency and Time weighting meet IEC 61672 class 2
A, C frequency weighting networks is selected
Time weighting (Fast & Slow) dynamic characteristic modes
0.5″ standard microphone head
AC output for system expansion
RS232 computer interface
Auto range & Manual range selection
Available for external calibration adjustment
Condenser microphone for high accuracy & long-term stability
Memory function to store the Max. & Min. value
Hold and Peak Hold functions
Build in type K and type J thermometer
Probe ( EM-910P ) is included for Humidity/Temp., Light and Anemometer measurement
Data logger with 1,600 no. memory, sampling time can select to 1, 2, 5, 10, 30, 60, 600, 1800 or 3600 seconds
DC 1.5 V battery ( UM-4, AAA ) X 6 or DC 9V adapter in
Operation key used push button
LCD display for low power consumption & clear read-out even in bright ambient light condition
Using the durable, long-lasting components, including a strong, light weight ABS-plastic housing case

Specifications Lutron SL-4112P Sound Level Meter

General Specification

Display: 51 mm x 37 mm LCD (Liquid crystal display), 5 digits with annunciator
Data logger: Data logger with 1,600 no. memory, sampling time can select to 1, 2, 5, 10, 30, 60, 600, 1800 or 3600 seconds
Operating Temp: 0 to 50 ( 32 to 122 )
Operating Humidity: Less than 80% RH
Power Supply: DC 1.5 V battery ( UM4, AAA ) x 6 PCs, or equivalent
Power Consumption: Approx. DC 15 mA max..
Dimension:
º Main imstrument : 246 x 68 x 41 mm ( 9.6 x 2.7 x 1.6 inch)
º Probe : 116 x 48 x 30 mm ( 4.6 x 1.9 x 1.2 inch)
Weight: 410 g/0.9 LB (including battery)

Electrical Specification For Sound Level Meter

Function: dB ( A & C frequency weighting ), Time weighting ( Fast, Slow), Hold, Memory ( Max. & Min. ), Peak hold, AC output, RS232 output
Meter default function:
º Range set to auto range
º Frequency weighting set to A weighting
º Time weighting set to fast
Measurement Range: 30 – 130 dB
Resolution: 0.1 dB
Range selector:
º Auto range : 30 to 130 dB
º Manual range : 3 range, 30 to 80 dB, 50 to 100 dB, 80 to 130 dB, 50 dB on each step, with over & under range indicating
Frequency: 31.5 to 8,000 Hz
Microphone type: Electric condenser microphone
Microphone size: Out size, 12.7 mm DIA. ( 0.5 inch)
Frequency weighting network: Characteristics of A & C
º A weighting : The characteristic is simulated as “Human Ear Listing” response. Typical, if making the environmental sound level measurement, always select to A weighting
º C weighting : The characteristic is near the “FLAT” response. Typical, it is suitable for checking the noise of machinery (Q.C.check) & knowing the sound pressure level of the tested equipment
Time weighting ( Fast & Slow ): Fast – t= 125 ms, Slow – t = 1 second
º “Fast” range is simulated the human ear response time
º “Slow” range is easy to get the avg. values of vibration sound level
º The “Fast” & “Slow” response range are designed to meet IEC 61672 class 2 requirement
Calibrator: B & K (Bruel & kjaer), MULTIFUCTION ACOUSTIC CALIBRATOR 4226
Output Signal:
º AC output : AC 0.5 Vrms corresponding to each range step.Out put impedance – 600 ohm
º RS232 output
Output terminal:
º Terminal 1 : RS232 computer interface terminal, photo couple isolated
º Terminal 2 : AC output terminal
º Terminal socket size : 3.5 mm dia. phone socket
Calibration VR: Build in external calibration VR, easy to calibrate on 94 dB level by screw driver