Digital Noise Sound Level dB Meter Decibel

Digital Noise Sound Level dB Meter Decibel

This digital meter is a multifunction sound level meter designed to accurately measure environmental noise, such as the noise from mechanic, vehicle, ship, loudness of computer fans and other noise with +-2 dB accuracy in decibels (dB).

This unit was designed according to the IEC651 TYPER2 & ANSI S1.4 TYPE2 for sound level meters. Instantaneous sound measure function. With two equivalent weighted sound pressure levels, A and C. Fast & Slow dynamic characteristic modes. AC and DC signed output for frequency analyzer level recorder, FFT analyzer, graphic recorder etc.


Features:

* Conformed to the IEC 651 Type 2 and ANSI S1.4 Type 2 set standard
* Wide Measuring Range: 40 - 130 dB
* With 2 equivalent weighted sound pressure levels A and C
* Fast and Slow dynamic characteristic modes
* Bar graph indication for Sound Level Range
* Maximum hold function
* Large LCD screen with 4 digits reading
* MAX/MIN quasi-analog bar indicator
* Fast & Slow response selectable
* Low battery indicator

* * * Monitor the sound levels from traffic noise, alarm systems and workplace machinery

Specification:

* Accuracy: +-2 dB
* Frequency Range: 31.5 Hz to 8.5k Hz
* Linearity Range: 50dB
* Measuring Level: 40-130dBA, 40-130dBC
* Frequency Weighting: A, C
* Digital Display: 4 digits
* Resolution: 0.1dB
* Display: 0.5 secretary
* Analog Bar Graph: 50dB scale at 1dB step for monitoring current sound pressure level display period of 50mS
* Overload indication: Under indicate less than lower limit of the range
* AC output: 0.707 Vrms at FS output impedance approx 600
* DC output: 10 mV / dB output impedance approx 100
* Dynamic Characteristic (Time weighting): FAST (high speed) / SLOW (low speed)
* Microphone: 1/2 inch electret condenser microphone
* Max: Maximum hold
* Power Supply: 9V 6F22 battery or DC 9V 100mA
* Operating Environment: 0¿¿C to 40¿¿C , 10% to 70% RH
* Storage Environment: -10¿¿C to 50¿¿C , 10% to 80% RH
* Dimensions: 235 x 70 x 30 mm (LxWxH)