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Casella CEL-490 Sound & Noise Level Meter Casella CEL Get Quote
 
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The Casella CEL-490 sound level meter is the perfect rental solution for environmental noise applications. The CEL-490 noise analyzer allows Broadband, octave and 1/3 octave monitoring in addition to a dynamic 140 dB measurement range. The 2Mb onboard memory stores time history as well as the measured parameters. Typical applications include boundary noise monitoring, impact assessments, sound pressure monitoring, transport noise studies and sound power determination making this the ideal sound level meter for your rental and hire solution.

This product is has an optional Environmental Kit Case. Casella CEL’s 490 environmental system is designed to give protection from the elements for medium or long term unattended monitoring. Whether simple or in-depth measurements are required, an appropriate meter from the CEL-450/490 range can be selected for the application. The system is completely stand-alone, with the internal battery lasting up to 10 days. The microphone is covered by an acoustically transparent rain shield that also prevents noise measurements being effected by wind noise - attached as related item on right.

Key Features

  • Compliant with latest IEC 61672 standard
  • Time history profiles for built-in graphic level recording
  • Available in both Class 1 and Class 2 accuracy grades
  • Environmental kit casing avaiilable
  • Real-time frequency analysis in octave and one-third octave
  • Easy to use menu with user definable configurations
  • Choice of broadband only, octave or one-third octave instruments
  • Firmware and software upgradeable
  • Clear, backlit screen
  • Comprehensive software package with graphical reporting, graphing & analysis functions
  • Fast storage of noise time history down to 10ms
  • Large 2Mb memory capable of storing over 800000 data points
  • Single 140dB measurement range, no need for range selection

Applications

  • Fast storage of noise time history down to 10ms
  • Comprehensive software package with graphical reporting, graphing & analysis functions
  • Large 2Mb memory capable of storing over 800000 data points
  • Clear, backlit screen
  • Firmware and software upgradeable
  • Easy to use menu with user definable configurations
  • Choice of broadband only, octave or one-third octave instruments
  • Single 140dB measurement range, no need for range selection
  • Compliant with latest IEC 61672 standard
  • Time history profiles for built-in graphic level recording
  • Available in both Class 1 and Class 2 accuracy grades
  • Environmental kit casing avaiilable
  • Real-time frequency analysis in octave and one-third octave

Technical Specifications

Internal Power Supply 4 off AA alkaline cells ( 15 hours typical max battery life for broadband, 12 hours typical for narrow band measurements )
External power Supply 12 V dc 150 mA nominal via 2.1 mm power connector
LCD screen display 128 x 64 pixel monochrome backlit display with icon indicators
Screen Languages English, French, German, Italian, Spanish menu selectable.
Baud rate for digital transfer 8 settings from 9600 to 115200 baud
Memory storage capability 2 Mbytres ( 800,000 data points ) 25,000 full octave spectra
Digital Output Download or remote control of operations of meter via dB23 software
Microphone details CEL-250 precision electret capsule for type 1 models, CEL-485 combined electret microphone and preamplifier for type 2 models
Broadband frequency weightings A', 'C' and 'Z' (linear, un-weighted, all-pass level)
Frequency response (Hz) 6.3 Hz for -3 dB down points
Acoustic accurarcy ANSI S1.4 (R1997) type 1 and type 2, IEC 61672:2002, IEC 60651 : 1994, IEC 60804 : 2000, IEC 61260 : Class 0
Octave Band Center frequencies 11 simultaneous bands with center frequencies with center frequencies 16 Hz to 16 kHz
Third octave band frequencies 33 simultaneous bands with center frequencies 12.5 Hz to 20 kHz
Dynamic range for calculations 140 dB
Maxium noise level (dB) 140 Db rms, 143 dB peak ( with standard 50 mV/Pa CEL-250 mic)
DSP sampling rate (Hz) 67,200 Hz sampling with true rms, weighting, 23.4 'Z' weighted
Resolution (dB) 0.1 dB across whole range

Dimensions

  US Metric
Dimensions 13.4 x 4 x 1.5 in 340 x 100 x 40 mm

Weight

  US Metric
Weight 19.3 oz 550 gm

Consumables

Personal Protective Equipment (hard hats, glasses, reflective vest, etc)
Personal Protective Equipment (hard hats, glasses, reflective vest, etc)

 

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