Th11
Máy đo độ ồn FLUS ET 933 THÔNG SỐ KỸ THUẬT Máy đo độ ồn FLUS ET 933: Features: ◆Applied standard ：IEC61672-1 CLASS2 ◆Frequency weighting：A and C ◆Time weighting：FAST and SLOW ◆MAX/MIN record ◆Data Hold ◆Overragne indication ◆analog bar-graph indication Specifications: Applied standard: IEC61672-1 CLASS2 Accuracy: ±1.4dB Frequency range: 31.5Hz~8kHz Dynamic range: 50dB Measuring level range: Lo: 30dB~80dB Med: 50dB~100dB Hi: 80dB~130dB Auto: 30dB~130dB Frequency weighting: A and C Time weighting: FAST 125ms; SLOW ( 1s ) Microphone: 1/2 inch electret condenser microphone Resolution: 0.1dB Sampling time: 2 times/second MAX hold: MAX MIN hold: MIN DATA hold: HOLD Overragne indication: […]
