407764 Datalogging Sound Level Meter

Type 2 Sound Meter with datalogging memory plus PC interface. Up to 128,000 readings.

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Price: $649.00

SKU:

407764

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407764 Product Sheet

407764 User Manual English / Spanish

Features of the 407764 Extech Datalogging Sound Level meter

Autoranging over 6 ranges from 30 to 130dB with high accuracy to ± 1.5dB and 0.1 dB resolution
Large LCD display with function indication and fast 50 segment bar graph display
Time and Date are logged with data
Stored data can be easily transferred to a PC via RS-232 interface and analyzed using software & cable provided
A & C weighting and Fast/Slow response
Tripod mount provided on rear.. Order Tripod Below.
Max Hold function
Meets ANSI S1.4 Type II and IEC 651 standards
Internal self test when powered ON
Detachable 0.52"(13.2mm) diameter condenser microphone
Analog AC/DC recorder output 10mVDC/decibel
Optional microphone extension cable for measurements in enclosures and other remote locations (407764-EXT)
Dimensions: 10.4 x 2.8 x 0.8"(265 x 72 x 21mm); Weight: 10oz.
Complete with microphone wind cover, Windows® 95/98/NT/2000/ME/XP compatible software, Serial cable, 4 AA batteries, and carrying case
Optional Certificate of Calibration, traceable to N.I.S.T. with data at multiple points

Applications of the 407764 Sound Level Meter

• 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
Store data for error free community noise monitoring

Specifications of the 407764 Sound Level Data Logger

Applicable Standards IEC651 Type 2, ANSI S1.4 Type 2
Accuracy ±1.5dB (under reference conditions)
Frequency range 31.5Hz - 8KHz
Measuring level 30 - 130dB
Frequency weighting A and C
Microphone 0.5” Electret condenser microphone
Display 4-digit LCD; Resolution: 0.1dB; Display period: 0.5 sec.
Bargraph 50dB scale (1dB steps). Display period: 50mS; Auto-ranging: 100dB scale, 2dB steps
Sampling rate 50mS
Memory size 128,000 records / 255 sets (non-volatile memory)
Datalogging sample rate 1 to 86,400 seconds per record
Time weighting FAST: 125mS, SLOW: 1 sec.
MAX Maximum reading held
Level ranges 30-80dB, 40-90dB, 50-100dB, 60-110 dB, 70-120dB, 80-130dB (Total of 6 ranges)
Auto range 30 to 130dB
Linearity range 50dB
Alarm function OVER indicator for readings higher than high limit. UNDER indicator for readings lower than low limit.
AC output 0.707 Vrms at Full Scale. Output impedance approx. 600Ω
DC output 10mV / dB. Output impedance approx. 100Ω
Power supply Four 1.5V ‘AA’ batteries
Battery life Approx. 30 hrs continuous operation
AC adapter Voltage: 6VDC
- Voltage Ripple: < 100mVpp
- Supply Current: > 100mADC
- Socket: Pin Ground
- Casing: Positive
- External Diameter: 3.5mm
Operating temperature 32 to 104oF (0 to 40oC)
Operating humidity 10 to 80%RH
Storage temperature 14 to 140oF (-10 to 60oC)
Storage humidity 10 to 80%RH
Memory size 128,000 data records with Date and Time Stamping
RS-232 Interface Baud rate: 9600bps
Dimensions 10.4 x 2.8 x 1.4” (265 × 72 × 35mm
Weight Approx. 11.5 oz. (358g) including battery
Accessories: Batteries, carrying case, screwdriver, windscreen, 3.5mm plug, RS-232 cable , WindowsTM compatible software.

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Option	SKU	Price
407764 Datalogging Sound Level Meter	407764	$649.00
407764-NIST Datalogging Sound Level Meter w/ NIST	407764-NIST	$774.00