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Optimus Sound Level Meter

Optimus is a range of sound level meters covering applications from basic noise assessments right up to the most detailed occupational or environmental noise survey with data logging and real-time 1/3 octave band filters.

The latest technology has been used to make a powerful meter very easy to use, rather than baffling the user with numerous options.

The excellent quality OLED color screen ensures measurements are displayed clearly, with color coding when the levels are above preset limits.

Dynamic Range

The Optimus measures from 20 to 140 dB in a single span. Unlike most older meters, there is no need to select the range before you start (or even worse, during measurement). Perfect for measuring noise that varies considerably.

Parallel Measurements and Real-Time Octaves

The Optimus meters measure all parameters at the same time, so you do not have to select which noise measurements you need before starting. Just press Start. It has "real-time" or "parallel" octave band filters, so these are measured at the same time too. It makes for a very quick and easy start to any measurement.

  optimus sound level meter
Optimus Sound Level Meter
     

The Optimus Range

The Optimus range is made up of a series of standard and integrating sound level meters. Each model is available as Type 1 or Type 2, with data logging being an option for all the meters.

     
cirrus optimus cr150

Optimus Yellow - General Purpose

A range of standard (non-integrating) Sound Level Meters available as Type 1 or Type 2. Data logging option. Voice Tag feature is included with the data logging versions.

More details and pricing...

 
cirrus optimus cr160

Optimus Red - Occupational Noise

A range of Integrating Sound Level Meters for occupational noise measurement. Available in Type 1 or Type 2. Data logging and Real-Time Octave Band Filters are options. Voice Tag included with data logging versions.

More details and pricing...

 
cirrus optimus cr170

Optimus Green - Environmental and Occupational Noise

A range of Integrating Sound Level Meters for environmental noise measurement. Data logging and Octave Band Filters included. Voice Tag and Audio Recording also included. Option for Real-Time 1/3 Octave Band Filters.

More details and pricing...

 
     
     
  The Optimus Range  
     
 
Model Type Freq Time Leq Data Octave 1/3 Oct    
  1 or 2 A,C,Z F,S,I Peak Log Bands Bands    
     
Optimus Yellow - Sound Level Meter
CR151A 1 yes yes option option      

Applications that demand high accuracy, but do not need an Integrating meter (see below): basic surveys, alarm testing, ordinance enforcement.

CR152A 2 yes yes option option      
CR151B 1 yes yes option yes      
CR152B 2 yes yes option yes      
  opt - option that can be fitted at a later date
Optimus Red - Integrating Sound Level Meter
CR161A 1 yes yes yes option option    

Occupational noise assessments. For basic surveys, the CR162A is ideal. If you want to download to a computer then the CR162B has this fitted. For more advanced assessments and hearing protector calculations, the CR162C it ideal.

CR162A 2 yes yes yes option option    
CR161B 1 yes yes yes yes option    
CR162B 2 yes yes yes yes option    
CR161C 1 yes yes yes yes yes    
CR162C 2 yes yes yes yes yes    
  opt - option that can be fitted at a later date
Optimus Green - Advanced Integrating Sound Level Meter
CR171A 1 yes yes yes yes yes option  

Environmental and community noise. All Greens have data logging, octave filters and audio recording. The "B" versions add real-time 1/3 octave band filters.

CR172A 2 yes yes yes yes yes option  
CR171B 1 yes yes yes yes yes yes  
CR172B 2 yes yes yes yes yes yes  
  opt - option that can be fitted at a later date
 

Other Features of the Optimus

Upgrades
 

The Optimus Sound Level Meter has a very modular design, so you can add features such as data logging and octave band filters at a later date, usually without even having to return the meter. Software and firmware (the software in the meter itself) can all be upgraded remotely.

   
Voice Tag and Audio Recording Options
 

Before starting a measurement the meter asks if you want to record a Voice Tag. At this stage you can speak into the microphone and record up to 30 seconds of notes. With the Audio Recording option, the meter can record the audio at the same time as making measurements. You can listen to the Voice Tag or the Audio Recording after downloading the measurement to a computer.

   
Time History
 

The data logging meter stores parameters such as the Leq and Peak at a rate of between 10ms and 2 Seconds (user programmable). When downloaded, this gives a detailed graph of the noise over time.

   
Octave Band Time History
 

Data logging meters store the octave band spectrum every second or every 1/2 second, giving a very detailed analysis of the noise over time.

   
Automatic Calibration Check and Adjustment
 

Many measurement standards and regulations state that you should check a meter's calibration before starting. To calibrate the Optimus Sound level Meter, just fit the Calibrator, switch it on and press the Calibrate button.

  optimus noise screens

 

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