Máy khuếch đại đo mức tiếng tiếng ồn Rion NA-42

Measurement functions           Sound pressure level Lp Sound level maximum Lmax Peak sound pressure level Lpeak

Frequency range     1 Hz - 100 kHz (approx -2 dBat 1 Hz, approx -3 dB at 100 kHz)

Frequency weighting  A, C, Flat

Time weighting       Fast, Slow, Impulse

Built-in filters         High-pass filter (HPF): 3rd-order Butterworth filter, 20 Hz (-3 dB) Low-pass filter (LPF): 3rd-order Butterworth filter, 20 kHz (-3 dB)

Power requirement  IEC R14 (size C) battery X 4, Battery life Apporox.14h (LR14) AC adapter UP01811065A