Brand |
Castle Group |
Application |
Environmental Noise, Noise at Work |
Weightings |
A, C, Z |
Available Outside the UK? |
Yes |
The Castle SONUS is a new range of pocket meters designed for ease of use with the power the cover the work you need, from Noise at Work measurements to Environmental monitoring. The SONUS sound level meters are split into a range of meters to suit specific needs.
Different models are split into 3 variations – Basic, Integrating and Logging – with an option for a Class 1 or Class 2 meter. Each model is packed with features designed to help you get the measurements you need, from basic sound level meter to a full logging integrating sound meter.
The Basic SONUS model, the GA116B or GA216B, gives simultaneous sound pressure level (Lp), max (Lmax) and peak (Cpeak) measurements for initial spot-check assessments for Noise at Work Regulations and is designed for engineers and industrial safety officers and anyone with a need for simple and accurate sound measurements.
The Integrating SONUS, GA116I or GA216I, adds further functions and measurement parameters including Lep'd and Dose enabling the sound meter to also double as a dosemeter. The meter is ideal for Industrial Safety Officers and Safety Managers and can be used for Health and Safety at Work Act; Noise Regulations 1989. The GA116I gives all the required information for Noise at Work risk assessments.
Completing the SONUS range of sound level meters, the GA116L and GA216L are full data logging instruments, capable of measuring Ln and Le parameters while also adding an Exposure Calculation to the dosemeter measurements. With an additional real-time clock and USB connection to the dBdataPro analysis software the data logging meters can store data and give you the results in a format to suit.
The SONUS range of pocket sound level meters have replaced the former Castle Sound Level Meters GA208, GA214, GA213, GA215, GA113, GA110, GA111 and GA210.
Features
- Class 2 Instrument
- Measurement Range 35 - 140 on 3 ranges
- Time Weighting Fast & Slow
- Overload Function
- A & C Weighting
Technical Specification
Applicable Standards | IEC 61672-1:2002 Class 1 Group X BS EN 61672-1:2003 Class 1 Group X IEC 61252:1993 BS EN 61252-1997 + A1:2001 |
Display | Back-lit LCD panel (8x1 Characters) Alpha-Numeric display for measured results |
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 23 dB(A) rms |
Frequency Weighting | 'A' and 'C' to IEC 61672-1:2002 and IEC 60651:1979+A1+A2 Combinations of A, A&C simultaneous or A&Z simultaneous available for Leq, Lmax and Pmax |
Frequency Range | 20 Hz - 8 kHz (including microphone) 1 Hz - 20 kHz (electrical characteristics) |
Time Weighting | Fast and Slow in Accordance with IEC 61672-1-2002 |
Dose Calculations | Exchange rate: 3dB, 4dB or 5dB Criterion Level: 75dB, 80dB, 85dB or 90dB Threshold Level: -5dB, -10dB or OFF |
Instrument Response | Simultaneous Peak and RMS |
Calibration | Software controlled 91.0 to 120.0 dB (1kHz) in 0.1 dB steps |
Memory | 2100 Data Intervals Maximum |
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 | 220g (including battery) |
Operating Temperature Range | -10 to + 50ºC |
Humidity Effect | < 0.5dB from 25% to 90% RH |
Vibration | No Effect on Instrument |
EMC | Emissions: EC 61000-6-3, EN61326-1:2006, CISPR 22:1997 EN55022:1998, FCC Rules, Part 15 2003 Class B Immunity: IEC 61000-6-2:2005, EN61326-1:2005 Levels ±4kV (Contact), ±8kV (Air) Amp Mod: IEC 61000-6-2:2005, Level 10V/m |
Microphone and Preamplifier:
Custom pre-amplifier design
Typical actuator to free-field correction factor (based on 500Hz=0) is shown below:
- 20Hz: 0 1kHz: 0
- 25Hz: 0 1.25kHz: +0.2
- 31.5Hz: 0 1.6kHz: +0.4
- 40Hz: 0 2kHz: +0.5
- 50Hz: 0 2.5kHz: +1.0
- 63Hz: 0 3.15kHz: +1.2
- 80Hz: 0 4kHz: +1.5
- 500Hz: 0 5kHz: +2.0
- 630Hz: 0 6.3kHz: +2.5
- 800Hz: 0 8kHz: +3.8