CESVA - Model SC420 -Sound Level Meter and Spectral Analyser

• INCLUDED Audio recording with pre-recording and voice comments
• Increased storage with MicroSD memory card
• Automated Parameters: timers, DEN thresholds, external input:
  1) Auto start/stop of measurement and logging
  2) Auto audio recording & pre-recording
• Erasing backward (BACK ERASE function)
• Built-in USB & BLUETOOTH® connectivity
• Sensitivity, date & time change history
• Ready for environmental monitoring:
  1) Auto ON and automatic measurement and logging start
  2) Downloads while measures
• Free or diffuse sound-field correction options
• Can be expanded with advanced measurement modes (see optional Modules)

ON&PLAY

The ON&PLAY philosophy has been developed to be intuitive - getting first time users up & running quickly & providing a stress-free return to measurements, even after long periods of inactivity.

ON&PLAY offers a simple and enjoyable experience from the first moment of contact with the device.

With ON&PLAY, measurement has never been so easy.

Removable MicroSD memory card
The information measured by the SC420 (final results and time histories), audio files and voice notes are saved on the MicroSD card inserted into the SC420.

Once the measurements are complete and the SC420 is powered-off, the MicroSD card can be removed and inserted into a computer. The data can then be transferred using the program `Memory Download` - the download can be completed much faster this way.

 4 GB class 4 microSD cards have been tested successfully. 

Modular Platform
The SC420 is an instrument that stands out for its power, versatility & ergonomics. It delivers high performance as a Class 1 integrating sound level meter (in accordance with IEC 61672, ANSI S1.4 and ANSI S1.43).

Thanks to its modular platform, the SC420 can be expanded with advanced measurement options such as 1/3-octave band spectral analysis, FFT analysis and reverberation time measurement.

Automated Parameters
The SC420 has a complete system of automated parameters, such as starting & stopping measurement and audio recording. Automatic timers and triggers are also available when exceeding threshold by DEN time-zones .

Its power and versatility offer infinite combinations which will provide optimal performance for even the most demanding of users. 

Ready for environmental monitoring
The SC420 is designed to work as an automatic continuous noise monitoring unit. An environmental monitoring powering option is available, which allows measurements to be resumed after recovery from a power failure.

Optimal file structuring allows efficient data transfer & manipulation; this includes downloading while measuring and erasing parts that have already been downloaded.   

What does it measure?

Occupational noise mode simultaneously measures all the parameters necessary to evaluate the noise exposure of the worker with and without hearing protectors (SNR, HML and Octaves).

Applications

• Industrial acoustic
• Noise measurements for air conditioning installations (HVAC)
• Sound Insulation measurements
• Frequency analysis of industrial noise, environmental and labour
• Background noise in rooms

What does it measure?

16 Hz to 16 kHz octave band filters analysis plus overall functions and NC and NR curves

Applications

• Sound insulation measurements
• Noise measurement for air conditioning installations ( HVAC)
• Frequency analysis of industrial noise, environmental and labour
• Background noise in rooms

1/3 OCTAVE FILTERS (TF420)

What does it measure?

10 Hz to 20 kHz 1/3-octave band filters analysis plus overall functions

Applications

• Sound Insulation measurements in  third octave band
• Assessment of environmental noise (Corrections for the presence of tonal and impulsive components and low frequency content) 
• Detection and identification of noise sources