dBAir Environment Class 1 – IC-GA141E

The Castle GA141E dBAir Environmental Sound Level Meter is specifically designed for environmental monitoring of noise, for example performing BS 4142 assessments, boundary noise monitoring and compliance monitoring. It can measure sound from 20dB to 140dB at frequencies between 10Hz and 20kHz with Class 1 level accuracy and 0.1dB resolution. There are two measurement ranges (20dB to 115dB, 45dB to 149dB) with a linear range of 95dB and the environmental monitoring capabilities are further enhanced by a very low noise threshold of 15dB.

It is possible to select A, C, or Z frequency weighting on the Castle CA141E and the user can also choose fast or slow response times (10ms to 24h). The measurement options on this sound meter are tailored for environmental monitoring as it can perform percentile measurement alongside timed noise assessment of various times of day. Lspl, Leq, Lmax, Lmin, and peak are just some of other options available on the meter. Two different variables can be assessed at once thanks to the dBAir’s simultaneous measurement function.

Features:

– Linear range: 95dB
– Measurement ranges: 20dB to 115dB; 45dB to 140dB
– Class 1 accuracy
– Resolution: 0.1dB
– Percentile and timed interval measurement
– Colour graphical display
– User-friendly menus and push buttons
– A, C, and Z weighting
– Fast and slow response times
– 16GB internal memory
– Upload to online Cloud via Wi-Fi
– USB data download available
– Low noise floor

Specifications

– Applicable Standards: IEC 61672-1:2013; IEC 61260-1:2014 (Where Octave Bands Fitted),IEC 61252:1993 amendment 1:2000 (Where Exposure Fitted)
– Microphone: Class 1 – 0.5 Pre-Polarised – Free Field (IEC) Pressure (ANSI) Sensitivity (50mV/Pa)
– Noise Floor (Typical): “A” Weighting < 16.0dB; "C" Weighting < 15.0dB; "Z" Weighting < 25.0dB
– Measurement Ranges: 25 to 115dB (LOW); 50 to 140dB (HIGH)
– Frequency Weightings: A, C or Z
– Frequency Range: 1 Hz – 20 kHz (electrical characteristics); 10 Hz – 20 kHz (including microphone)
– Time Weighting: Slow, Fast, Impulse
– Octave Band Analysis: Where fitted 1/1 only
– Display: 2.4″ Full Colour TFT 240×320 pixels
– Dual Measurements: Simultaneous dual measurement with independent time and frequency weightings.
– Measurement parameters: LSPL, LE, LEQ, LMAX, LMIN, Peak, Ltm3, Ltm5, Lday, Levening, Lnight, Ldn, Lden, NA, 10 user-definable Ln values (pre-set to: L1, L5, L10, L20, L25, L50, L75,L90, L95, L90) plus LAF* for Noise act assessment.
– Languages: English UK, English US, Chinese, French, German, Italian, Portuguese, Brazilian, Russian, Spanish, Dutch, Greek
– Time History: Short Interval 10ms to 60m; Long Interval 1s to 24h; Smart Timer, Duration Timer or Interval Timer
– Memory: 16GB
– Input / Output Connection: Micro USB Type B
– Batteries: 4 x AA (1.5V)
– Battery Life: Up to 8 Hours continuous operation (screen settings dependent)
– Dimensions Including Pre-Amplifier: 210mm (H) x 70mm (W) x 30mm (D)
– Dimensions Excluding Pre-Amplifier: 145mm (H) x 70mm (W) x 30mm (D)