Máy đo độ ồn Hangzhou Aihua AWA5688

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Máy đo độ ồn Hangzhou Aihua AWA5688

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Máy đo độ ồn Hangzhou Aihua AWA5688


SPECIFICITION  

Fulfills Standards

IEC 61672 Class 2

IEC 61260 Class 2

IEC61252:2002

Microphone

1/2” prepolarized condenser microphone for free field (Sensitivity Level: -36dB)

Preamplifier

AWA14602 removable preamplifier

Frequency Range

20 Hz ~ 12.5kHz ± 1 dB (not including microphone)

Total Measurement Range

30dB-133dB

Frequency Weighting.

Parallel (simultaneous) A, C, Z, B, D

Time Weighting

Parallel (simultaneous) F, S, I, Peak

Measurement Parameters

Lxyp, Lxyi, Lxeq,1s, Lxeq,T, LAE, E, Cpeak, LAFmax, LAfmin, LAfeqT, LAseqT, LAieqT.

Note: X is A, C, Z and Y is F, S, I

A/D Bits:

24 bits

Sampling Frequency

32 kHz.

Calibration

Using Sound Calibrator Class 2 model AWA6221B

Correction Function

Diffusion field correction in order to comply with standards ANSI S1.4

Display

240×320 color screen, adjustable brightness, backlight can be closed

Display Resolution

0.1 dB

Low battery indication

indicate low battery

Data Storage

 

3328 groups of integrating measuring results only.

32 Mb FLASH RAM

(32G SD card memory function is optional)

Print

Mini-printer

Internal Clock

Error less than 1 min/month

Output Interface

AC Output (full scale): 1.0V AC RMS; Output Impedance: 1k Ω; Connector: φ3.5 mm stereo plug

DC Output: 20mV/dB; Output Impedance: 1k Ω; Connector: DB-9 plug

RS232 Interface: To computer for output some measurement results instantaneous values , also to mini-printer for printing

Transmission speed: 4800, 9600,115200 bps

USB Interface: available and no need device drive.

Power Supply

4×LR6 alkaline battery or rechargeable batteries

5 V external power supply

Battery Life

Longest time of 30 hours continuously with 4×LR6 alkaline battery

Dimensions

240 (H) x 80 (W) x 30 (D), mm.

Weight

0.35 kg. (include batteries)

EMC

Type X

Environment: 

Working Temperature: -10 ~ 50 °C

Storing Temperature: -20 ~ 70 °C

Relative Humidity: 25 ~ 90 %


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