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The Optimus Green sound level meter is available as either Class 1 or Class 2 - the most common for environmental noise measurement and more accurate being Class 1. This meter also has everything needed for occupational noise measurement in line with the Noise at Work regulations, making it ideal for anybody involved in both environmental (outside the factory) and occupational (inside the factory) noise.
There are many features included with this meter that are designed to make the task easier. Functions such as a single measurement range, voice notes and audio recording are included in all Optimus Green meters.
The Green range also includes real-time octave band filters
and data logging with software and download cable. They measure A, C and Z frequency weightings simultaneously
along with Fast, Slow and Impulse time weightings.
If the meter is to be left unattended in poor weather conditions then the Outdoor Kit should be used to offer protection against the elements. The Outdoor Kit also includes a large rechargeable battery pack for at least seven days of monitoring.
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Our Recommendation
Most environmental noise surveys demand the use of a Class 1 Sound
Level Meter that can make repeating measurements,
such as the 5 minute LAeq and L90 (background noise).
We recommend the Class 1 Optimus Green
with Data Logging (order code CR171A ).
If there is any noise with a high tonal content, then
the 1/3 Octave Band option is recommended
(order code CR171B).
All environmental noise regulations demand the
use of a Sound Level Calibrator. We recommend the Class 1 Calibrator, order code CR515. |
| Versatile Display for Use in Bright or Dark Conditions |
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Standards |
IEC 61672 Class 1 or Class 2
IEC 60651, IEC 60804 & ANSI S1.4 Type 1 or Type
2
Octave & 1/3 Octave Filters to IEC 61260 & ANSI
S1.11 |
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Display |
Hi resolution graphic OLED with illuminated keypad |
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Memory* |
4GB expandable. Up to 10000 measurements stored |
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Time History Store* |
10ms, 62.5ms, 125ms, 0.5s, 1s, 2s (user selectable) |
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Voice Tag* |
30 seconds of audio with each measurement |
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Physical & Power |
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Size |
283 x 65 x 30 mm |
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Weight |
300g |
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Battery |
4 x AA Alkaline (typically 12 hours) |
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External Power |
5V via USB socket from PC or Power Supply |
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Tripod Mount |
1/4" |
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Temperature |
-10°C to +50°C (storage -20°C to +60°C) |
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Humidity |
Up to 95% RH non-condensing |
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Acoustic Technical |
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Range |
20 to 140 dB RMS - Single Range |
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Noise floor |
<18dB(A) Class 1, <21dB(A) Class 2 |
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Freq. Weightings |
A, C & Z measured simultaneously |
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Time Weightings |
Fast, Slow & Impulse measured simultaneously |
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Integrators |
Three simultaneous "virtual" noise meters |
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Ln Statistical Values |
14 Ln values. Preset: L1, L5, L10, L50, L90, L95 &
L99
plus seven user defined Ln values |
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Audio Recording |
Manual or threshold triggered
Standard quality: 16-bit, 16 kHz sampling
High quality: 32-bit, 96 kHz sampling |
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Specifications... |
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| Optimus Green Order Codes |
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| CR172A |
Class 2 Int. Sound Level Meter with Logging & Octaves |
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| CR172B |
Class 2 Int. Sound Level Meter with Logging & 1/3
Octaves |
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| CR171A |
Class 1 Int. Sound Level Meter with Logging & Octaves |
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| CR171B |
Class 1 Int. Sound Level Meter with Logging & 1/3
Octaves |
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| CR514 |
Class 2 Acoustic Calibrator |
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| CR515 |
Class 1 Acoustic Calibrator |
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| CK280 |
Optimus Carry Case |
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| CK670 |
Weatherproof Outdoor Kit |
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| CU-USB |
Mains Power Supply |
£22.00 |
| CU-CUSB |
Car Accessory Socket Power Adapter |
£18.00 |
Order
Codes... |
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Optimus
Green
Datasheet (PDF, 942k) |
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