Casella CEL-490 Sound & Noise Level Meter
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.
Features:
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
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
Large 2Mb memory capable of storing over 800000 data points
Comprehensive software package with graphical reporting graphing & analysis functions
Fast storage of noise time history down to 10ms
Applications:
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
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
Large 2Mb memory capable of storing over 800000 data points
Comprehensive software package with graphical reporting graphing & analysis functions
Fast storage of noise time history down to 10ms
| 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 ( 800000 data points ) 25000 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) | 67200 Hz sampling with true rms weighting 23.4 'Z' weighted |
| Resolution (dB) | 0.1 dB across whole range |
Dimension
| 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 |