Senin, 02 Mei 2016

Extech 407780 Type 2/Class 2 Integrating Sound Level Datalogger

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Extech 407780 Type 2/Class 2 Integrating Sound Level Datalogger
  • 4 digit multifunction display
  • Range of over 100 decibels
  • SPL, SEL, MAX-L/MIN-L and LEQ display modes
Extech 407780 Type 2/Class 2 Integrating Sound Level Datalogger Details

Measure and document sound with Extech's 407780, a type 2 sound level meter with built-in datalogging capabilities.
Featuring multiple measurement display modes (SPL, SEL, MAX-L/MIN-L and Leq), this sound measurement device is suitable for use in carrying out a number of different measurements across a decibel range of 30dB to 130dB. The 407780 also features programmable integrating time, A and C frequency weighting and impulse, fast and slow response settings.

This sound meter is ideally suited for carrying out measurements over an extended time period thanks to its built-in datalogging capabilities. The batteries of the unit will last on average for around 20 hours and it can store up to 32000 records on the device over the time it operates, making this product suitable for constantly measuring sound. The data stored on the tester can also be sent to PC and interacted with using the software included as part of this pack.
This product meets IEC 651/804 Type 2 and ANSI S1.4 Type 2 specifications. Extech recommend this product for use in performing Leq and SEL measurements, OSHA compliance testing, noise ordinance and machine noise evaluation.

Extech 407880 Type 2/Class 2 Integrating Sound Level Datalogger Key Features
  • 4 digit multifunction LCD screen with analogue bargraph
  • Precise linearity over wide range (100dB0
  • SPL, SEL, MAX-L/MIN-L and Leq display modes
  • Programmable integrating time
  • A and C frequency weighting
  • Impulse/fast/slow response settings
  • Datalogging function records up to 32000 records
  • Built-in real time calendar and clock
  • RS-232 interface allows the unit to connect to PC and software package
  • Tripod mountable
  • Meets IEC 651/804 type 2 and ANSI S1.4 Type 2 specifications
Full List of Products Included
  • Extech 407780 Type 2/Class 2 Integrating Sound Level Datalogger
  • Windscreen
  • Adjustment Screwdriver
  • RS-232 Cable
  • 9 to 25 Pin Gender Changer
  • Windows Software
  • Battery
  • Case
Extech 407780 Technical Specifications
Applicable Standards
IEC 651 And 804 Type 2, ANSI S1.4 Type 2
Accuracy
±1.5dB (ref 94dB@1KHz)
Resolution
0.1dB
Digital Display
4 digital LCD
Measurement Parameters
SPL, Leq, SEL, MaxL, MinL
Measurement Range
30dB to 130dB
Linearity Range
100dB
Measurement Frequency Range
31.5Hz to 8KHz
Frequency Weighting
A and C
Response
Impulse, Fast or Slow
Microphone
1/2 " Electret condenser microphone
Sampling Time
Updated every 0.5s
Bargraph
4dB steps, 100dB range, 100ms update
Display Warning Function
 Overrange Indicator
 Underrange Indicator


Displayed at the upper limit
Displayed at the lower limit

Analogue AC/DC Output
2Vrms (at full scale), 10mVDC/dB
Power Supply
Four 1.5V AA batteries, Optional AC adapter
Battery Life
Approximately 20 hours
Dimensions
10.4x2.8x0.8" (265x72x21mm)
Weight
10.9oz (310g)

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