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AWA 6291 Real Time Signal Analyzer

 

FEATURES

  • A pocket real-time noise signal analyzer

  • FFT analysis on noise or vibration
  • 90dB Level Linearity Range
  • Different software could be selected
  • Auto-start and auto-end

 

USES

  •  Precision acoustics measurements
  •  Real-time frequency analysis in 1/1 and 1/3 octave digital filters
  •  Environmental noise measurement and 24 hour monitoring
  •  Reverberation time measurements           
  •  Airport Noise Monitoring and data collect
 

 SPECIFICATIONS

No

Model

AWA6291

1

Name

Real Time Signal Analyzer

2

Fulfils Standards

IEC 61672 class 1 and IEC 61260 class 1

3

Microphone

1/2" Prepolarized Condenser Mic. Model AWA14423 (sensitivity: 50 mV/Pa)

4

Preamplifier

AWA14601

5

Frequency Range

10 Hz ~ 20 kHz

6

Range Gain

-10 dB, 0 dB, 10 dB, 20 dB, 30 dB, 40 dB.

Range Error: ≤0.1 dB.

7

Self-generated Noise

<18 dB(A), 23 dB(C), 28 dB(Z)

8

Meas. upper Range

140 dB

9

Peak C Sound Level Measuring Range

50~143 dB

10

Frequency Weighting.

Parallel (simultaneous) A, C, Z. Realized by digital filtering

11

Time Weighting

Parallel F, S, I, Peak C+, Peak C-

12

A/D Bits

24 bits

13

Level Linearity Range

>90 dB

14

Sampling Frequency

48 kHz

15

Display

240×160 graphic LCD, with EL back-lit

16

Display Refresh

1 Hz for value; 10 Hz for graph

17

Main Parameters of Integrating Measurement

Lxyp, Lxyi, Lxeq,1s, Lxeq,T, LAE, E, Cpeak+, Cpeak-, LAFmax, LAFmin, LAFeqT, LASeqT, LAIeqT

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

18

Main Parameters of Airport Noise Meas

LEPN,Td,Lmax

19

Display Resolution

0.1 dB

20

Real-time Analysis Speed

Approx. 47 times/s (It can simultaneously complete all center frequencies and A, C, Z weighting.)

21

Statistical analysis Function

Statistical analysis software (S6291-00101)

Statistical analysis Menu: LAFp, LAFmax,

LAF5, LAF10, LAF50, LAF90, LAF95, LAFmin, SD, LAeq1 s, LAeq, T, LAE, LAFeqT.

24 hours monitors menu :And Ld, Ln, Ldn

 

22

Real-time spectrum analysis

Fulfils standards: IEC 61260 Class 1

Filter type: Digital band-pass filter

Measuring Parameters: Lfmi, Lfmeq,1s, Lfmeq,T, Lxyp, Lxyi, Lxeq,1s, Lxeq,T, LAE, E, Cpeak, Tm

Note: fm is center frequency; X is frequency weighting A, C, Z. Y is time weighting F, S, I

23

Real-time 1/1 OCT spectrum analysis

1/1 OCT spectrum analysis software for noise (S6291 -00202)

Filters Center Frequency: 16 Hz~16 kHz

24

Real-time 1/1 OCT spectrum analysis

1/3 OCT spectrum analysis software for noise (S6291 -00303)

Filters Center Frequency: 10 Hz~20 kHz

25

FFT analysis function

FFT analysis software for noise (S6291 -00404)

  1. Line Number: 200 lines on the display
  2. Sampling Frequency: 48 kHz, 24 kHz, 12 kHz,6 kHz, 3 kHz, 1.5 kHz.
  3. Upper Limit of Analysis Frequency: 18.75 kHz, 9375 Hz, 4687 Hz, 2344 Hz, 1172 Hz, 586 Hz
  4. Bandwidth of each line: 93.75 Hz, 46.875 Hz, 23.438 Hz, 11.74 Hz, 5.8594 Hz, 2.9297 Hz
  5. Average Method: index and linearity
  6. Measuring Parameters: Lxyp, Lxyi, Lxeq,1s, Lxeq,T, LAE, E, Cpeak,Tm in every line 

26

Reverberation time measurement function

 

Reverberation time measurement software

(S6291-00508)

 

1.  Function: Reverberation time, EDT measurement by integrated impulse response method.

2.  Fulfils Standard: ISO 3382

3. Measuring Parameters: T20, T30, EDT

4. Measuring Range: 0.20s to 20.00 s

5. Wave record time: 10 s or 20 s

6. Bandwidth of digital filters:1/1 OCT or 1/3 OCT

7. Center Frequency Ranges: 63 Hz ~ 16 kHz for Oct, 40 Hz ~ 16 kHz for 1/3 Oct

8. Date store: Max 12288 groups reverberation time, also translate to U disc

 

27

Data Storage

64M bits Flash, instantaneous data, 1 second integral results and integral measuring result (maximum 12288 groups). Also can be stored in Flash disk or transferred to the Flash disk through USB interface

28

Integral Time

Manual, 10 s, 1 min, 5 min, 10 min, 15 min, 20 min, 30 min, 1h, 4h, 8h, 24h or 1 min~59 min

29

Print

Can print analytical results in the mini-print, can also print the contents showed on LCD

30

Data Recall

Recalled any data

31

Intelligent Delete

Burst event may be deleted scientifically

32

Internal Clock

Error less than 1 min/month

33

Output Interface

Stereo Connector AC Signal Output

RS 232 interface to the mini-printer, or connected to PC

USB Interface, which can transfer the measuring results to PC, or the Flash disk

34

Power Supply

6×LR6 alkaline battery or rechargeable batteries, which can work for over 12 hours continuously. 9 V external power supply is also acceptable

35

Dimensions

310(H) × 90(W) × 38(D),mm

36

Weight

0.5 kg (include batteries)

37

EMC

Type X

38

Working Temperature

-10 ~ 50°c

39

Relative Humidity

25 ~ 90%

40

Atmospheric Pressure

65 kPa ~ 108 kPa

 

 
 
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