Fulfils Standards

IEC ****0 class 1

Microphone

1/2" Prepolarized Condenser Mic.

Model AWA****5 (sensitivity : *0 mV/Pa)

Preamplifier

AWA****1

Frequency Range

*0 Hz ~ *6 kHz

Self-generated Noise

<*0 dB(A), *5 dB(C), *0 dB(Z)

Meas. upper Range

**5 dB

Peak C Sound Level

Measuring Range

*0 ~ **8 dB

Frequency Weighting.

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

Time Weighting

Parallel F, S, I, Peak

A/D Bits

*4 bits

Level Linearity Range

>**0 dB

Sampling Frequency

*8 kHz

Display

**8×**8 graphic LCD, with LED 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, 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)

The statistical analysis menu: LAFp, LAFmax,

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

LAeq1 s, LAeq, T, LAE, LAFeqT.

*4h measures 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(S***8 -****2)

Filters Center. Frequency :*6 Hz~*6 kHz.

Real-time 1/1 OCT

spectrum analysis

1/3 OCT spectrum analysis software(S***8 -****3)

Filters Center Frequency *2.5 H~*6 kHz

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

Data Storage

maximum **8 groups, The measuring

results can be stored in SD

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

AC Output: ,φ3.5 mm stereo plug

DC Output : DB*9 plug

RS**2 Interface: to the mini-printer, or connected to PC.

USB Interface: Available as USB interface when SD card has be selected

Power Supply

4×LR6 alkaline battery or rechargeable batteries, which can work for over *8 hours continuously. 5 V external power supply is also acceptable

Dimensions

**0 (H) x *0 (W) x *0 (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

Optional functions

1. SD card

2.GPS module

3.Recording( have to choose SD card first)

1)Recording format : sampling frequency

****0, *6bit precision

2)File format: WAV, including calibrating

information

3)Recording time: 1s to 1h

4)Replay: either by instrument or via PC