+44 130 677 0855
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+44 130 677 0855
Email
+44 130 677 0855
Email
The delivery price is calculated during checkout based on your location and the goods ordered. Our basic delivery prices are:
Delivery within Australia: $48.00
Delivery Service: Five working days*
* For products that are in stock and the order received by midday.
Some products go through a final configuration and calibration before being shipped. If the calibration labs are busy this can add up to two days on to the delivery schedule but guarantees a fresh calibration.
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 measurements usually consists of checking the calibration (adjustments are automatic) and then taking the readings.
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.
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.
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.
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.
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.
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:
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.
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.
The meter takes just four AA batteries (included), which should last at least 12 hours - that's a lot of noise measurements.
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.
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.
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.
Order codes CR151A and CR152A include the following items:
Order codes CK151A and CK152A include the following:
| Standards | IEC 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 | |
| Microphone | Class 1 MK:224 pre-polarized, Class 2 MK:216 pre-polarized |
| Measurement Range | 20dB to 140dB RMS Single Range |
| Noise Floor | <18dB(A) Class 1, <21dB(A) Class 2 |
| Frequency Weightings | RMS & Peak : A, C, & Z Measured Simultaneously |
| Time Weightings | Fast, Slow & Impulse Measured Simultaneously |
| Display | High resolution display. Ambient light sensor & illuminated keypad |
| Dimensions | Size: 283mm x 65mm x 30mm |
| Weight | 300gms/10oz |
| Power | 4 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) |
| Connections | USB 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 Mount | 1/4" Whitworth socket |
| Case | Material: High Impact ABS-PC with soft touch back & keypad |
| Environmental | Temperature: Operating -10°C to +50°C, Storage -20°C to +60°C |
| Humidity: Up to 95% RH Non Condensing | |
| Electromagnetic performance | IEC 61672-1:2002 & IEC 61672-2:2003 |
| Except where modified by EN 61000-6-1:2007 & EN 61000-6-1:2007 | |
| Language options | English, French, German, Spanish. Other language options may be available |
| Displayed Functions | LXY, LXYMax, LXYMin, Run Time |
| where x=A ,C ,Z; y= F, S, I |
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