Extech 407790A

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Extech Instruments

Real Time Octave Band Analyzer

Type 2 integrating sound level meter with Octave and 1/3 Octave Band real time display

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Extech’s Type 2 Integrating Sound Level Meter with Octave and 1/3 Octave Band Real Time is displayed on a large 3.5" 320x240 TFT color backlit LCD.

Wide measurement in 5 ranges: 20 to 90dB, 20 to 100dB, 20 to 110dB, and 30 to 120dB, 40 to 130dB
3.5" (320x240) TFT color LCD with backlight feature displays Leq, LE, Lmax, Lmin, Lp, L05, L10, L50, L90, L95
Stores readings on microSD card
Precise linearity over wide range (100dB)
Transferred data to a PC to be analyzed using software and cable provided
A, C and Z weighting with Fast or Slow response
25Hz to 10kHz frequency response
Meets ANSI and IEC Type 2 standards
Internal self test when powered ON
Detachable 0.52" (13.2mm) diameter condenser microphone and Tripod mount provided on rear
Analog AC/DC recorder output
Real time clock with Year, Month, Day, Hour, Minute and Second display
Optional microphone extension cable for measurements in enclosures and other remote locations (407764-EXT)
Complete with Windows® compatible software, USB cable, 4 x C batteries, microphone wind screen, mini screwdriver, 120V AC adaptor, and case

Specifications	Range
Applicable standards	ANSI S1.4 Type 2, EN IEC 60651, EN IEC 60804, and EN IEC 1260-1995
Accuracy	±1.5dB (ref 94dB @ 1kHz)
Measurement functions	Lp, Leq, LE, Lmax, Lmin, L05, L10, L50, L90, L95,
Frequency range	25Hz ~ 10kHz
Frequency Weighting	A, C, and Z
Time Weighting	Fast, Slow, 10ms (τ), I
Display	3.5" (89mm) 320x240 TFT color backlit LCD; Displays 1/1, 1/3, and 1/1 & 1/3
1/1- 1/3 Analyzer level range	5 ranges in 10db steps: 20 to 90dB, 20 to 100dB, 20 to 110dB, 30 to 120dB, 40 to 130dB
1/1 Octave and 1/3 Octave	1/1 Octave band center frequencies: (9 bands);
1/1 Octave and 1/3 Octave	1/3 Octave band center frequencies: (27 bands)
Signal output	AC output: 1 Vrms (at full scale); DC output: 3.0V, 25mV/dB
Memory	microSD card (included)
Measurement Time	1s to 23h 59m 59s
Power	Four type C size 1.5V batteries, External DC power: 6V, 1A
Dimensions/Weight	13.6 x 3.9 x 2.4" (345 x 100 x 60mm)/ 33.5oz (950g)