Key Features: Lutron SL4012 Sound level meter

• The large LCD display,
• easy to read. Frequency weighting meet,
• IEC 61672 class 2,
• Auto range & manual range,
• A & C frequency weighting,
• Fast & Slow time weighting,
• AC output for system expansion,
• RS232 computer interface,
• External calibration VR,
• Hold & Memory record,
• The high accuracy condenser microphone,
• Peak Hold,
• Over and under load indicator,
• LCD display,
• Durable, strong lightweight ABS-plastic housing case

SPECIFICATIONS: Lutron SL4012 Sound level meter

Display: 52 mm x 32 mm LCD (Liquid crystal display), 5 digits with
annunciator
Function:
dB (A & C frequency weighting), Time weighting (Fast, Slow),
Hold, Memory (Max. & Min.), Max. hold, AC output, RS232
output
Measurement range: 30 - 130 dB
Resolution: 0,1 dB
Range selector:
Auto range: 30 to 130 dB
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: Outsize, 12.7 mm DIA. (0.5 inch)
Weighting Network: Characteristics of A & C
Time weighting
(Fast & Slow):
Fast: t=200 ms, Slow: t=500 ms
"Fast" range is simulated the human ear response time
"Slow" range is easy to get the avg. values of vibration sound
level
The "Fast" & "Slow" response range are designed to meet IEC
651 type 2 requirement
Calibrator: B&K (Bruel & Kjaer) multifunction acoustic calibrator 4226
Output Signal:
AC output: AC 0.5 Vrms corresponding to each range step
Output impedance - 600 ohm
RS232 output
Terminal 1: RS232 computer interface terminal, photo couple 
Display: 52 mm x 32 mm LCD (Liquid crystal display), 5 digits with
annunciator
Function:
dB (A & C frequency weighting), Time weighting (Fast, Slow),
Hold, Memory (Max. & Min.), Max. hold, AC output, RS232
output
Measurement range: 30 - 130 dB
Resolution: 0,1 dB
Range selector:
Auto range: 30 to 130 dB
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)
Weighting Network: Characteristics of A & C
Time weighting
(Fast & Slow):
Fast: t=200 ms, Slow: t=500 ms
"Fast" range is simulated the human ear response time
"Slow" range is easy to get the avg. values of vibration sound
level
The "Fast" & "Slow" response range are designed to meet IEC
651 type 2 requirement
Calibrator: B&K (Bruel & Kjaer) multifunction acoustic calibrator 4226
Output Signal:
AC output: AC 0.5 Vrms corresponding to each range step
Output impedance - 600 ohm
RS232 output
Terminal 1: RS232 computer interface terminal, photo couple

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