LUTRON SL-4022 Sound Level Meter
LUTRON SL-4022 Sound Level Meter
Features
● Frequency weighting and time weighting are meet IEC 61672 Class 1.
● A & C weighting networks comply with standards.
● FAST & SLOW dynamic characteristic modes.
● Large LCD display, easy to read.
● Build in adj. VR, available for easy calibration.
Specifications :
Circuit : Custom one-chip of microprocessor LSI circuit.
Display : 18 mm (0.7") LCD (Liquid Crystal Display), 3 ½ digits.
Function : dB (A & C frequency weighting), Time weighting (Fast, Slow), max. hold, max. hold reset, AC output.
Measurement Range : 3 ranges (30 - 70 dB, 60 - 100 dB, 90 - 130 dB)
Resolution : 0.1 dB.
Frequency : 31.5 Hz to 16 KHz. * Accuracy is tested within 31.5 Hz to 8 KHz.
Calibrator : B & K (Bruel & kjaer), multi-function acoustic calibrator, model : 4226.
Microphone Type : Electric condenser microphone.
Size of Microphone : ½ inch standard size.
Range Selector : 30 to 70 dB, 60 to 100 dB, 90 to 130 dB, 40 dB on each step, with over & under range indicating.
Output Signal : AC output - AC 750 mVrms corresponding to each range step.
Calibration : Build in external calibration VR, easy to calibrate on 94 dB level by screw driver. Internal oscillation system, 1 KHz sine wave generator.
Output Terminal : 3.5 mm dia. phone output terminal is provided for connection with analyzer, level recorder, tape recorder.
Power Supply : DC 9V battery x 2 pcs, 006P, MN1604 (PP3) or equivalent, heavy duty or alkaline type.
Dimension : 260 x 87 x 36 mm.
Weight : 450 g.
Accessories Included : Instruction manual, Calibration screw driver, Carrying case.
