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Optimus Yellow Sound Level Meter

Optimus Yellow Sound Level Meter
Optimus Yellow Sound Level Meter
Optimus Yellow Sound Level Meter Clear Colour Display

More Options

CR152A
€922.00
Sound Level Meter - Class 2
In stock

CK152A
€1337.00
Kit with Class 2 Sound Level Meter, Calibrator and Case
In stock
CR151A
€1713.00
Sound Level Meter - Class 1
In stock

CK151A
€2257.00
Kit with Class 1 Sound Level Meter, Calibrator and Case
In stock
CR514
€314.00
Class 2 Sound Level Calibrator
In stock

CR515
€442.00
Class 1 Sound Level Calibrator
In stock
ZL174
€57.00
DC Output Cable - 18 pin to phono, 1 m
Lead time 1 week

ZL175
€107.00
RS232 Cable - 18 pin to 9 pin D female
Lead time 1 week

ZL202
€99.00
Microphone extension cable 2 m
Lead time 1 week

ZL205
€116.00
Microphone extension cable 5 m
Lead time 1 week

ZL210
€145.00
Microphone extension cable 10 m
Lead time 1 week

ZL220
€179.00
Microphone extension cable 20 m
Lead time 1 week
CR152A
€922.00
Sound Level Meter - Class 2
In stock

CK152A
€1337.00
Kit with Class 2 Sound Level Meter, Calibrator and Case
In stock

Features

  • Simple to use
  • Simultaneous measurement of all parameters
  • 120 dB measurement range
  • A, C and Z weightings
  • Fast, Slow and Impulse response
  • Bluetooth connection to mobile app

Applications

  • Basic noise surveys
  • Noise ordinance enforcement
  • Fire alarm testing
  • Office noise checks
  • Machinery maintenance and trouble-shooting

Optimus Yellow

The Optimus Yellow is a calibrated, professional grade sound level meter for noise measurements that must meet the relevant international standards. Despite being a powerful meter, it is extremely easy to use, ensuring you get the correct measurements from the start.

The Optimus range of sound level meters uses the latest display technology and digital signal processing (DSP) techniques to provide you with a very powerful yet easy to use meter. The ease of use comes from the fact that all parameters are automatically measured at the same time, so no need to think about what you need in the split second before starting the measurement.

Making Noise Measurements

Making measurements usually consists of checking the calibration (adjustments are automatic) and then taking the readings.

Future Upgrade

Not sure if you need data logging? Maybe you don't know at this stage whether you might need an Integrating sound level meter. It could even be that eventually you may need octave band filters.

These features can be added at a later date. Some can even be fitted without returning the meter to the factory by remote update.

We can even change the meter from Class 2 to Class 1, although of course it must be returned for this upgrade.

Visit the Options tab for more details.

Applications

The Optimus Yellow is ideal for applications that need a wide measurement range (20 to 140 dB) but do not need an integrated average (Leq or Lavg). This base model does not offer data logging, which helps keep the price down if all you need are single number readings, in which case it can be easier to produce reports manually rather than connecting to a computer and downloading. If you need data logging then please see the Optimus Yellow with Data Logging.

  • Alarm installation and testing
  • Machinery servicing and maintenance
  • Office noise checks
  • Noise ordinance enforcement
  • System integration

General Noise Survey

As this meter meets the strict IEC 61672 standard to Class 2 or Class 1, depending on the model you choose, it can be used to make accurate and repeatable measurements.

If the regulations you are measuring to do not require an integrating meter then this one should be ideal.

Fire Alarm Testing

The standards for fire alarm testing usually demand the measurement of the "A" weighted "Fast" sound level. The CR152A sound level meter provides this measurement.

System Integration

Even this non-logging version of the Optimus Yellow has both AC and DC outputs, making it ideal for connection to a data logging system via a suitable A/D converter. Please note that some outputs require an extra cable. Please contact us for more information.

Noise Measurement

One of this meter's most useful features is its ability to measure all the noise parameters at the same time. When the time comes to make a measurement, you have no doubts about whether you have the correct settings.

Measures all parameters at the same time:

  • Fast, Slow, and Impulse time weightings
  • A, C and Z frequency weightings
  • Maximum (Lmax) and Minimum (Lmin) for all of the above
sound level parameters

Most noise measurement regulations will clearly state the parameters that should be measured. For most, this will include the "A" weighted Sound Level, with a time response of either Fast or Slow. To keep things clear, the meter shows only the most commonly used parameters on the screen.

In this example, the display shows the current Fast Sound Level (LAF) as a large number. Below that are the maximum (LAFmax) and the minimum (LAFmin) and the measurement time.

The bar on the left shows the current sound level. It can be set to change color when preset levels have been exceeded.

Using the Optimus Yellow

The Optimus range of sound level meters have a single measurement span and measure all the noise parameters at the same time. This means that you do not have to think about a range setting (there isn't one) or which measurements you need first. Just switch on and make the measurement.

Power Up

The meter takes just four AA batteries (included), which should last at least 12 hours - that's a lot of noise measurements.

switch on

Start the Measurement

start the noise measurement

Press the Start button to begin the noise measurement

Once running, the meter will show the current sound level along with the maximum and minimum levels. Other parameters can be viewed (such as "C" weighted and "Z" weighted levels) by using the up and down arrow keys.

Stop the Measurement

stopped

The end the measurement process, press the Stop button. The display will show the most common measurement parameters: Maximum Sound Level and Minimum Sound Level with the usual "A" weighting applied. Using the up and down keys, you can also view the "C" and "Z" weighted values.

In The Box

You can buy the Optimus Yellow as a sound level meter on its own or as part of a noise measurement kit. For this grade of meter, most customers have the measurement kit, as this includes a sound level calibrator, which is a requirement for many noise regulations.

Sound Level Meter

Order codes CR151A and CR152A include the following items:

  • Optimus Yellow Sound Level Meter
  • User Manual
  • Calibration Certificate
  • Windshield

Noise Measurement Kit

Order codes CK151A and CK152A include the following:

  • Optimus Yellow Sound Level Meter
  • Sound Level Calibrator
  • Windshield
  • Carrying Case
  • User Manuals
  • Calibration Certificates (for meter and calibrator)
StandardsIEC 61672-1:2013 Class 1 or Class 2
IEC 61672-1:2002 Class 1 or Class 2 Group X
IEC 60651:2001 Type 1 I or Type 2 I
ANSI S1.4 -1983 (R2006), ANSI S1.43 - 1997 (R2007)
ANSI S1.25:1991
MicrophoneClass 1 MK:224 pre-polarized, Class 2 MK:216 pre-polarized
Measurement Range20dB to 140dB RMS Single Range
Noise Floor<18dB(A) Class 1, <21dB(A) Class 2
Frequency WeightingsRMS & Peak : A, C, & Z Measured Simultaneously
Time WeightingsFast, Slow & Impulse Measured Simultaneously
DisplayHigh resolution display. Ambient light sensor & illuminated keypad
DimensionsSize: 283mm x 65mm x 30mm
Weight300gms/10oz
Power4 x AA Alkaline
Typically 12 hours with Alkaline AA
Typically 20 hours with Lithium AA Non-Rechargeable
External Power: 5v-15v via MultiIO socket via ZL:171 cable (2.1mm socket)
ConnectionsUSB Type B to PC
AC & DC Output via ZL:174 (2 x Phono, 1m)
Multi-pin IO for external power via ZL:171 cable (2.1mm socket)
External Power: 5v-15v via MultiIO socket via ZL:171 cable (2.1mm socket)
Tripod Mount1/4" Whitworth socket
CaseMaterial: High Impact ABS-PC with soft touch back & keypad
EnvironmentalTemperature: Operating -10°C to +50°C, Storage -20°C to +60°C
Humidity: Up to 95% RH Non Condensing
Electromagnetic performanceIEC 61672-1:2002 & IEC 61672-2:2003
Except where modified by EN 61000-6-1:2007 & EN 61000-6-1:2007
Language optionsEnglish, French, German, Spanish. Other language options may be available
 
Displayed FunctionsLXY, LXYMax, LXYMin, Run Time
 
where x=A ,C ,Z; y= F, S, I