Fulfils Standards

IEC ****2 class 1

Microphone

1/2" Prepolarized Condenser Mic.

Model AWA****3 (sensitivity : *0 mV/Pa)

Preamplifier

AWA****1

Frequency Range

*0 Hz ~ *0kHz

Range Gain

*0 dB, 0 dB, *0 dB, *0 dB, *0 dB, *0 dB.Range Error: &#x***4;0.1 dB

Self-generated Noise

<*8 dB(A), *3 dB(C), *8 dB(Z)

Meas. upper Range

**0 dB

Peak C Sound Level

Measuring Range

*0 ~ **3 dB

Frequency Weighting.

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

Time Weighting

Parallel F, S, I, C, Peak C

A/D Bits

*4 bits

Level Linearity Range

>*0 dB

Sampling Frequency

*8 kHz

Display

**0×**0 graphic LCD, with EL back lit

Display Refresh

1 Hz for value; *0 Hz for graph

Main Parameters of Integrating

Measurement

Lxyp, Lxyi, Lxeq,1s, Lxeq,T, LAE, E, Cpeak, Cpea,LAFmax, LAFmin, LAFeqT, LASeqT, LAIeqT. Note: X is A, C, Z and Y is F, S, I.

Main Parameters of

Airport Noise Meas

LEPN,Td,Lmax

Display Resolution

0.1.dB

Real-time Analysis

Speed

Approx. *7 times / s (It can simultaneously complete all center frequencies and A, C, Z weighting.)

Statistical analysis

Function

Statistical analysis software (S***1 ****1)

Statistical analysis Menu: LAFp, LAFmax,

LAF5, LAF*0, LAF*0, LAF*0, LAF*5, LAFmin, SD,

LAeq1 s, LAeq, T, LAE, LAFeqT.

*4 hours monitors menu :And Ld, Ln, Ldn

Real-time spectrum

analysis

Fulfils standards:, IEC ****0 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

Real-time 1/1 OCT

spectrum analysis

1/1 OCT spectrum analysis software for noise

(S***1 ****2) Filters Center. Frequency: *6 Hz~*6 kHz.

Real-time 1/1 OCT

spectrum analysis

1/3 OCT spectrum analysis software(S***1 ****3)

Filters Center Frequency *0 Hz~*0 kHz

FFT analysis function

FFT analysis software for noise (S***1 -****4)

1. Line Number: **0 lines on the display.

2. Sampling Frequency: *8 kHz, *4 kHz, *2

kHz,6 kHz, 3 kHz, 1.5 kHz.

3. Upper Limit of Analysis Frequency: *8.*5

kHz, ***5 Hz, ***7 Hz, ***4 Hz, ***2 Hz, **6

Hz.

4. Bandwidth of each line: *3.*5 Hz, *6.**5

Hz, *3.**8 Hz, *1.*4 Hz, 5.***4 Hz, 2.***7Hz.

5. Average Method: index and linearity.

6. Measuring Parameters: Lxyp, Lxyi, Lxeq,1s,

Lxeq,T, LAE, E, Cpeak,Tm in every line

Reverberation time

measurement function

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

2. Fulfils Standard:ISO ***2

3. Measuring Parameters:T*0,T*0,EDT

4. Measuring Range:0.*0 s to *0.*0 s

5. Wave record time:*0 s or *0 s

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

7. Center Frequency Ranges: *3 Hz ~ *6 kHz for Oct., *0 Hz ~ *6 kHz for 1/3 Oct.

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

Data Storage

*4M bits Flash, instantaneous data, 1 second integral results and integral measuring result (maximum ****8 groups). Also can be stored in Flash disk or transferred to the Flash disk through USB interface

Integral Time

Manual, *0 s, 1 min, 5 min, *0 min, *5 min, *0 min, *0 min, 1h, 4h, 8h, *4h or 1 min~*9 min

Print

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

Data Recall

Recalled any data

Intelligent Delete

Burst event may be deleted scientifically

Internal Clock

Error less than 1 min/month

Output Interface

Stereo Connector AC Signal Output

RS **2 interface to the mini-printer, or connected to PC

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

Power Supply

6 × LR6 alkaline battery or rechargeable batteries, which can work for over *2 hours continuously. 9 V external power supply is also acceptable

Dimensions

**0(H) × *0(W) × *8(D),mm

Weight

0. 5 kg. (include batteries)

EMC

Type X

Working Temperature

*0 ~ *0 °C

Relative Humidity

*5 ~ *0 %

Atmospheric Pressure

*5 kPa ~ **8 kPa