Extech 407780 Specifications

www.extech.com

6/11/08 - 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 wind shield, 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 NIST certificate

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

PR20....................Portable Thermal Printer

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)

Optional Thermal Printer (PR20) prints text or graphical data