Lutron SL-4022 Sound Level Meter

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.

Accuracy Frequency weighting meet IEC 61672 Class 1, calibrating input signal on 94 dB the accuracy of frequency
(23 5 ‘”) weighting is specified as following:
31.5 Hz : 2.0 dB, 63 Hz : 1.5 dB, 125 Hz : 1.5 dB,
250 Hz : 1.4 dB, 500 Hz : 1.4 dB, 1 KHz : 1.1 dB,
2 KHz : 1.6 dB, 4 KHz : 1.6 dB, 8 KHz : + 2.1 dB to -3.1 dB,

Frequency Characteristics of A & C.
Weighting Network A weighting – The characteristic is simulated as “Human Ear Listing” response. Typical, if making
the environmental sound level measurement, always select to A weighting.
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.
Frequency 31.5 Hz to 16 KHz. * Accuracy is tested within 31.5 Hz to 8 KHz.

Standard Accessories ( Termasuk dalam paket produk )
Instruction Manual 1 PC.
Calibration screw driver 1 PC.
Carrying case 1 PC.