Extech 407790 Real Time Octave and 1/3 Octave Band Analyzer

DISCONTINUED ITEM-Replacement Model: Extech 407790A Real Time Octave Band Analyzer

The Extech 407790 Real Time Octave and 1/3 Octave Band Analyzer provides a high accuracy wide range, frequency spectrum analysis in Octave (1/1) or 1/3 increments. Performs integrating Leq, Le, Lmax, Lmin, and Lp measurements.

• Wide 100dB range of 30 to 130dB
• 160×160 dot matrix backlit LCD displays Leq, LE, Lmax, Lmin, and Lp
• Built-in memory stores up to 12,280 records in SLM mode and 1024 data points in 1/1 or 1/3 octave mode
• Stored data can be easily transferred to a PC via RS-232 interface and analyzed using software and cable provided
• A, C, and Flat weighting with Fast/Slow response time
• 25Hz to 10kHz frequency response
• Meets ANSI and IEC Type 2 standards
• Internal self test when powered ON
• Real time clock with Year, Month, Day, Hour, Minute, and Second display
• Detachable 0.52″ (13.2mm) diameter condenser microphone and Tripod mount
• Analog AC/DC recorder output
• Maintain noise level statistics for internal and external audits.
• Optional microphone extension cable for measurements in enclosures and other remote locations (407764-EXT)
• Complete with Windows® 95/98/NT/2000/ME/XP compatible software, Serial cable, four C batteries, mini screwdriver, 120V AC adaptor, and case

• Real time analysis of noise from any source such as machinery or vehicles
• Monitor office or plant noise and store data for later reference and analysis
• Maintain noise level statistics for internal and external audits
• Perform machinery noise monitoring or use for noise reduction programs

• 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 range / function: 30dB to 130dB / La, Lc, Lp, Leq, LE, Lmax, Lmin
• Frequency range: 25Hz ~ 10kHz
• Sound level meter display: Integrating SLM: Digital, 4 Digits with Bargraph
• Real Time Analyzer display: Graphical, Bargraph with cursor
• 1/1- 1/3 Analyzer level range: 30 to 130dB
• 1/1 Octave and 1/3 Octave: 1/1 Octave band center frequencies: (9 bands); 1/3 Octave band center frequencies: (27 bands):
• Signal output: AC output: 2 Vrms (at full scale); DC output: 10mVDC/dB
• Power: Four type C size 1.5V batteries, External DC power: 6V, 1A
• Safety/Warranty: CE approved, one year warranty
• Dimensions/Weight: 13.6 x 3.9 x 2.4″ (345 x 100 x 60mm)/ 33.5oz (950g)

• Extech 407790 Data Sheet.pdf
• Extech 407790 User’s Manual.pdf