Description:
This unit meets the measurement needs of noise engineers, quality control teams, and health professionals. It works effectively in different environments, such as factories, offices, traffic roads, and homes. Moreover, it provides accurate results for all other noise measurement applications.
Features:
1.This unit was designed according to following standards:
a. International electrician committee standard: IEC PUB 651 TYPE2
b. US national standard: ANSI S1.4 TYPE2
2.Accuracy up to +/-1.5dB
3.Measurement range is 30 to 130dB
4.Fast/Slow Time weigting selection
5.Automatic backlight
6.The maximum value holding function
7.Auto power off 10 minutes
8.A/C Frequency weighting selection
9.Both AC and PWM signal output are available
10.Calendar function
11.4700 data record function
12.Connect with the PC through USB, provides data record downloading,
real-time data sampling analysis, and printing graph&data functions.
Specification:
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Calibration sound source 94dB@1KHz Measurement range 30~130dBA、35~130dBC Accuracy ±1.5dB（reference sound pressure
standard，94dB@1KHz）Frequency response 31.5Hz~8.5KHz Resolution 0.1dB Measuring level 30 to 80 , 50 to 100, 60 to 110,
80 to 130, 30 to 130Dynamic range 50dB/100dB Overload indication OVER / UNDER Frequency weighting characteristic A and C Digital display 4 digits Analogy bar graph 1dB/1 bar graph Sampling rate FAST:8times/second;SLOW:2times/second AC signal output 4Vrms/ full bar graph, output impedance
is about 600 ohmPWM signal output Duty cycle =0.01X db value/3.3 x 100% Dyna mic cha racteristic FAST(high speed)/SLOW(low speed) Calendar accuracy ±30seconds/day Data stor age quantity 4700 The m aximum value holding MAX Auto power off 10 minutes without operation Micro phone 1/2inch polarization capacitance microphone Power supply 6V (4PCS 1.5V Alkline battery) Dimension 70x35x256mm Weight 244G (Without battery) Battery life 20h continuous use(Alkaline batteries)
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