LUTRON SL-4010 Sound Level Meter
[주요 사항]
- 화면표시: 18mm(0.7")LCD(Liquid Crystal Display),31/2 digits.
- 측정범위:30 to 130 dB，range 1: 30 to 80 dB，range2: 50 to 100 dB，range3: 80 to 130 dB Each range with warning indicator for over & under load.
- 분해능: 0.1dB.
- 측정주파수: 31.5 Hz to 8,000 Hz.
- 소음설정: Characteristics of "A" frequency weighting network. The "A weighting" characteristic is simulated as "Human Ear Listing" response.
- 측정속도: Default to "Fast" time weighting characteristics. "Fast time weighting "is simulated the human ear response character.
- 정확도(23±5℃): Characteristics of"A" frequency weighting network meet IEC 651 type 2.
- Under 94 dB input signal, the accuracy are: 31.5Hz~±3dB、63Hz~±2dB、125Hz~±1.5dB、250Hz~±1.5dB、500Hz~±1.5dB、 1kHz~±1.5dB、2kHz~±2dB、4kHz~±3dB、8kHz~±5dB
- 측정원리: Electric condenser microphone.
- 교정 작동: Build in external calibration VR, easy to calibrate on 94 dB level by screw driver