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: “OVER” or “UNDER”

Backlight display: √

Analog measurement: fast analog bar-graph indication

Operating conditions: -20°C~+60°C: 10％RH~90％RH

Storage conditions: -20°C ~+60°C: 10％RH~75％RH

Auto power off: the meter will be automatically shut off in activity of 15 minutes