เครื่องวัดเสียง Integrating Sound Level Meter with USB รุ่น 407780A

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407780A: Integrating Sound Level Meter with USB ยี่ห้อ Extech, USA

Leq and SEL measurements with built-in datalogger and PC interface

The 407780A is an integrating sound level meter with USB. The meter takes Leq and SEL measurements with A and C frequency weighting options. The meter has a built in datalogger that records up to 32,000 records and PC interface to easily access your logged information. Its 4 digit multifunction LCD has an analog bargraph and digital reading. With the 407780A you can program integration times, utilize impulse, fast or slow response settings and benefit from alarm features. Complete with windscreen, adjustment screwdriver, USB cable, Windows compatible software, battery, one year warranty and case.

Features:

  • 4-digit multifunction LCD with analog bargraph
  • Precise linearity over wide range (100dB)
  • Display modes: SPL, SPL MIN/MAX, SEL, and Leq
  • Programmable integrating time
  • A and C Frequency weighting
  • Impulse/Fast/Slow response settings
  • Datalogging function records up to 32,000 records
  • Real time calendar/clock
  • Analog and alarm output features can be used to connect with Frequency analyzers, chart recorders, external dataloggers, and sound level alarms
  • Built-in USB interface with included Windows® datalogging software
  • Tripod mount
  • Meets IEC 61672-1, 60651/60804 Type 2 and ANSI S1.4 Type 2 specifi cations
  • Complete with windscreen, adjustment screwdriver, USB cable, Windows® compatible software, battery, and case

For complete specs please download the product datasheet (not available for some accessories)

Specifications:
 Applicable Standards  IEC 61672-1, 60651 and 60804 Type 2, ANSI S1.4 Type 2
 Accuracy  ±1.5dB (ref 94dB@1KHz)
 Resolution  0.1dB
 Digital Display  4 digital LCD
 Measurement Parameters  SPL, SPL MIN/MAX, SEL, and Leq
 Measurement Range  30dB to 130dB
 Linearity Range  100dB
 Measurement Frequency Range  31.5Hz to 8KHz
 Frequency Weighting  A and C
 Response  Impulse, Fast and Slow
 Microphone  1/2 " Electret condenser microphone
 Sampling time  updated every 0.5s
 Bargraph  4dB steps, 100dB  range, 125ms update
 Display Warning Function
       • Overrange Indicator 
       • Underrange Indicator 
 
 Displayed at the upper limit
 Displayed at the lower limit
 Analog AC/DC Output  2Vrms (at full scale), 10mVDC/dB
 Power Supply  Four 1.5V AA batteries, Optional AC adapter
 Battery Life  Approximately 24 hours
 Dimensions  10.4x2.8x0.8" (265x72x21mm)
 Weight  10.9oz (310g)

EXTECH : 407780A Integrating Sound Level Meter with USB

Leq and SEL measurements with built-in datalogger
and PC interface. Datalogs up to 32,000 readings
using included software and USB cable.

Applications:

   -  Perform Leq and SEL measurements
   -  OSHA compliance Testing
   -  Noise Ordinance
   -  Machine Noise Evaluation
   -  Data Storage for pertinent records
Accessories:
   •  Complete with windscreen, adjustment screwdriver, USB cable, Windows® compatible software, battery, and case
 
CE  NIST  warranty12
 
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