integral sound meter
Specifications
- Brand
- MIDWEST
- Origin
- China
integral sound meter is a Noise Reduction Devices product. Key specs — Brand: MIDWEST; Origin: China.
Product Description
2ã€main technical indexes   1ã€microphone:1/2 inch polarization test capacitance microphone   frequency :20Hz—20kHz   sensitivity:50mV/Pa   2ã€measure range of sound(consult 2×10-5Pa)   25dB~135dB(A)   35dB~135dB(C)   45dB~135dB(Lin)
  3ã€frequency calculation and frequency range: A grade,C grade,LIN;linearity,flat frequency response.Frequency: 20Hz—20kHz   4ã€cymoscope trait:real virtual value and peak value are more than 10   5ã€time calculation:F(Fast)ã€S(Slow)ã€keep of maximum.   6ã€Shift setting of distance:maximum dynamic range 70dB,automatic indication over-distance and ill-distance   distance 1: 5dB~75dB   distance 2: 35dB~105dB(referenced distance)   distance 3: 55dB~125dB   distance 4: 75dB~145dB   7ã€automatic measure function:Leqã€LAEã€SDã€Lminã€L95ã€L90ã€L50ã€L10ã€L5ã€Lmaxã€1/3 and 1/1 spectrum Data groups of analysis(outer filter),reverberation time T60 and Lepn effective feel noise grade(communication software),automatically collect ,store and type.   8ã€choice of measure time and clock:Man(manual timing), 10Sã€1minã€5 minã€10 minã€20 minã€30 minã€1hã€8hã€24h and clock:year〠month〠day ã€timeã€minuteã€second   9ã€AC port :   600Ω maximum virtual value is about 7V,output resistance is 600Ω ã€€ã€€DC port :0.25V~1.35V,0.1V/10dB   serial interface:RS232C   10ã€display :40mm×70mm large screen LCD digital display four digits LCD, resolving power is 0.1dB.   11ã€adjustment: I type sound regulator n. or piston voice.   12ã€precision:accord with I type of IEC60804 or GB/T1781 standard   13ã€power: 5—8V,five LR6 type high-powered alkalescence batteries,and equipped with outer power input jack.   14ã€Size:310mm×85mm×70mm   15ã€weight:680g   16ã€working surroundings:manipulation temperature:—10℃~50℃   relative humidity:20%~90%RH   atmospheric pressure:86kPa~106kPa