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Lutron SL-4022 Sound Level Meter is a handheld sound level meter which has the microphone for high accuracy and has long term stability. This comes with the fast and slow dynamic characteristic modes with the resolution of 0.1dB.
Features of Digital sound level meter:
- This Lutron SL-4022 Sound Level Meter has a large LCD display ,easy to read.
- Characteristics of ” A ” frequency weighting clear read-out even in the bright ambient light network are designed to meet IEC 61672 class 1.
- AC output for system expansion
- Max Hold function for stored the maximum value on display.
- Build-in adj. VR is available for easy calibration
- This sound meter has a hold function to freeze the display value.
- Low battery indicator
- Warning indicator for over and under load
|Range||35 to 130 dB, 3 ranges : 1) range 1 - 35 to 80 dB 2) range 2 - 50 to 100 dB 3) range 3 - 80 to 130 dB, Each range with warning indicator for over & under load.|
|Accuracy_1||(23 ± 5 ℃): Characteristics of " A " frequency weighting network meet IEC 61672 class 2. Under 94 dB input signal, the accuracy are : 1) 31.5 Hz - ± 3.5 dB, 63 Hz - ± 2.5 dB, 125 Hz - ± 2.0 d|
|Operating Temperature||0 to 50 °C|
|Operating Humidity||Less than 80% R.H.|
|Measurement frequency||31.5 Hz to 8,000 Hz.|
|Frequency weighting Network||Characteristics of " A " frequency weighting network.The " A weighting " characteristic is simulated as "Human Ear Listing" response.|
|Calibrator||B & K (Bruel & kjaer), Multifunction Acoustic Calibrator 4226.|
|Microphone type||Electric condenser microphone|
|Size of microphone||1/2 inch standard size.|
|Data Hold||Hold function to freeze the display value.|
|Power Supply||DC 9V battery x 2 PCs, 006P, MN1604 ( PP3 ) or equivalent, heavy duty or alkaline type|
|Power Consumption||Approx. DC 6 mA.|
|Display||18 mm ( 0.7" ) LCD ( Liquid Crystal Display ), 3 1/2 digits.|
|Dimensions||260 x 87 x 36 mm|