Specifications subject to change without notice.
Copyright © 2008-2011 Extech Instruments Corporation. All rights reserved including the right of reproduction in whole or in part in any form.
www.extech.com 10/7/11 - R1
Leq and SEL measurements with built-in datalogger and PC interface
With built-in datalogger and PC interface
Integrating Sound Level Meter
Features:
•4 Digit multifunction LCD with analog bargraph
•Precise linearity over wide range (100dB)
•Display modes: SPL, SEL, MAX-L/MIN-L, 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
•Built-in RS-232 interface with included
Windows® datalogging software
•Tripod mount
•Meets IEC 651/804 Type 2 and ANSI S1.4 Type 2 specifications
•Complete with windscreen, adjustment screwdriver, RS-232 cable,
9 to 25 pin gender changer, Windows™ software, battery, and case
Applications:
•Perform Leq and SEL measurements
•OSHA compliance Testing
•Noise Ordinance
•Machine Noise Evaluation
•Data Storage for pertinent records
Windows®datalogging
software included
Ordering Information:
407780 ................Integrating Sound Level Datalogger
407780-NIST ......407780 with Calibration Traceable to NIST.
407766 ................94/114 dB Calibrator for 0.5" or 1" microphones
40705X ................Insulated recorder cable 3' for AC/DC Outputs
144118 ................110V AC Adaptor
144220 ................220V AC Adaptor
144240 ................240V AC Adaptor
407764-EXT ........6' (183cm) Microphone Extension Cable
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 and 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 Displayed at the upper limit
Underrange Indicator 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 20 hours
Dimensions 10.4x2.8x0.8" (265x72x21mm)
Weight 10.9oz (310g)
