AWA5661-1 Precision Pulse Sound Level Meter (SP00007046)

NegotiableUpdate on 04/28

Model

Nature of the Manufacturer: Producers

Product Category

Place of Origin

Online Consult

Overview

1. Overview: The AWA5661 sound level meter is a modular and multifunctional sound level meter that meets the requirements of GB/T3785-2010 and IEC61672:2002 standards for Level 1 sound level meters. Its sensitivity to radio frequency fields belongs to Class X. Due to the use of advanced digital detection technology, the stability and reliability of this instrument have been greatly improved. Moreover, it has a large dynamic range, simple operation, and wide applicability. The shell is made of ABS engineering plastic, which has a beautiful appearance, light weight, and is easy to carry; Battery powered, low power consumption; RS-232 digital output interface, can be connected to a computer for remote control

Product Details

2Main technical performance

(1) Microphone: Φ 12.7mm (1/2 ') test condenser microphone, free field response, reference point is the center of the microphone diaphragm, and their nominal free field response in the reference direction is shown in Appendix A.

Users can also choose other models of microphones, which can be used to measure particularly low or high noise levels.

Performance table of compatible microphones

Microphone model	Outer diameter (mm)	Nominal sensitivity (mV/Pa)	Frequency range (Hz)
AWA14425	Φ12.7	30	10~16000
AWA14423	Φ12.7	40	10~20000
AWA14411	Φ23.77	80	10~16000
AWA14431	Φ6.35	4	10~20000

(2) Dynamic range

Model of microphone provided	A-weighted local machine noise	C-weighted local machine noise	Z-weighted local machine noise	Measurement upper limit
AWA14425	<20dB(A)	<25dB(C)	<30dB	140dB
AWA14423	<18dB(A)	<23dB(C)	<28dB	138dB
AWA14411	<10dB(A)	<15dB(C)	<20dB	132dB
AWA14431	<40dB(A)	<45dB(C)	<50dB	160dB

(3) Frequency range: 10Hz~16kHz. When equipped with AWA14423 or AWA14431 microphones, the frequency range can reach 10Hz~20kHz

(4) Frequency weighting: A weighting, C weighting, Z weighting. Response in free field is shown in Appendix B

(5) Time weighting: F (fast), S (slow), I (pulse), Peak (peak)

(6) Detector characteristics: true effective value, digital detection, peak factor ≥ 10

(7) Instrument accuracy: Complies with IEC61672 Level 1 or GB/T3785 Level 1

(8) Range control: manual, with high and low settings, each with a 20dB attenuation, and a reference level linear range of>95dB.

(9) Total range: (for 1kHz frequency)

Microphone model	range	Measurement range (dB)	Peak factor of 10 (dB)	Peak measurement range (dB)
AWA14425	high	45~140	45~123	70~143
AWA14425	low	27~120	27~103	50~123
AWA14423	high	43~138	43~121	70~141
AWA14423	low	25~80	25~101	50~121
AWA14411	high	35~132	35~115	60~135
AWA14411	low	15~112	15~95	40~115
AWA14431	high	65~160	65~143	90~163
AWA14431	low	45~140	45~123	70~143

The above range is the value at the factory. When the user adjusts the calibration value or replaces the microphone, the range may change. The specific range is determined by the overload indication and lower limit indication when the range is high; When the measurement range is low, the upper limit is determined by the overload indication, and the lower limit is determined by adding 8dB to the background noise.

(10) Display: 128 × 64 dot matrix OLED.

(11) Output interface: AC output, DC output, RS-232C。

(12) Calibration: Use a Level 1 sound level calibrator or piston sounder.

(13) Power supply: Internally equipped with 4 × LR6 (5 #) alkaline batteries, capable of continuous operation for 16 hours. External power supply 4.5V~9V, 0.2A.

(14) Dimensions: 220 mm × 72 mm × 32 mm

(15) Quality: 400g.

(16) Usage conditions: Temperature: -15 ℃~50 ℃

Relative humidity: 10%~90%

Air pressure: 65kPa~108kPa