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| Brand | Castle Group |
|---|---|
| Application | Noise at Work |
| Class | Class 1 |
| Weightings | A, C |
| Available Outside the UK? | Yes |
The entry level of the Castle Pocket Range of Sound Level Meters is the SONUS B(GA116B ), a feature packed, pocket instrument that is fully compliant with IEC 61672-1:2002. This meter gives simultaneous sound pressure (Lp) and peak (Cpeak) measurement for a multitude of tasks including initial spot-check assessments to the Control of Noise at Work Regulations 2005. It has a high-specification measurement microphone and is cased in tough, crack resistant ABS plastic. Mobility of instrumentation is essential for effective noise measurement. As the name indicates, this Castle Sonus Pocket Meter packs all the necessary features into it's pocket sized proportions. This device is quick and easy to use with all the latest technology for sound pressure measurement!
| Applicable Standards | IEC 61672-1:2002 (Integrating, Sound Exposure and Sound Level Meters) |
| Microphone and Preamplifier | Type 2 Pre-Polarised ½” (13.2 mm) Electret Free-Field, Electret Condenser Microphone: 20Hz – 8KHz ± 2dB –32 dB ± 3 dB re 1V/Pa Custom pre-amplifier design Typical actuator to free-field correction factor (based on 500Hz=0) is shown below |
| Display | Back-lit LCD panel (8x1 Characters) Alpha-Numeric display for measured results |
| Level Range | Measuring Range: 35-140 Linear operating range (IEC61672-1): 65dB 3 Measurement Ranges (IEC61672-1): 35-100 55-120 - Reference Range 75-140 |
| Noise Floor | Typical ’A’ Weighting ‘C’ Weighting |
| Frequency Weighting | ‘A’ and ’C’ to IEC 61672-1:2002 and IEC 60651:1979+A1+A2 |
| Frequency Range | 20 Hz - 8 kHz (including microphone) 1 Hz - 20 kHz (electrical characteristics) |
| Time Weighting | Slow and Fast |
| Instrument Response | Simultaneous rms. and Peak |
| Measurement Parameters | Lp (Sound Pressure Level), Lmax (maximum Level), Cpeak (Max. Peak Level) Other Displays: Elapsed time, Overload, Battery Life |
| Calibration | Software controlled 91.0 to 120.0 dB (1kHz) in 0.1 dB steps |
| Processing | A to D Converter: 12-bit Controller: 8MHz, micro-controller |
| Power Requirements | Batteries: 1 x 6LR61 (size PP3), Life: >12 hours (alkaline batteries, continuous operation). |
| Dimensions | 60mm (width) x 35mm (depth excluding pocket clip) x 135mm (height without microphone) or 210mm (height with microphone) |
| Weight | 220gms (including battery) |
| Manuals | Multi-language manuals*: French, German, Spanish and Italian. |
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