Free Delivery Over £249*

Next Day Delivery*

60 Day Returns Guarantee

Castle GA116B Class 1 SONUS Digital Sound Pressure Level Meter

Castle Group
SKU: CASTGA116B
  • Pocket-sized sound level meter with measurement from 35dB to 140dB
  • Capable of measuring any two of Lp, Lmax and Cpeak simultaneously
  • Choice between A and C weighting and between fast and slow response times
More Info
Typically ships in 5-7 working days

Castle GA116B Class 1 SONUS Digital Sound Pressure Level Meter

The Castle GA116B Class 1 SONUS Digital Sound Pressure Level Meter is a pocket-sized sound level meter that can measure sound pressure from 35dB to 140dB using three different measurement ranges. It has Class I accuracy - thus making it compliant with IEC 61672-1:2002 - and gives readings to a precision of 0.1dB.

Simultaneous readings for sound pressure (Lp), maximum sound pressure (Lmax) and peak (Cpeak) allow the user to perform various duties including fire alarm testing and spot checking in accordance with the Noise at Work Regulations 1989. The user can toggle between A and C weighting and between fast and slow responses in addition to choosing between one of so the Castle GA116B is very versatile as an instrument.

The Castle GA116B has a backlit digital display that shows all readings plus elapsed time, overload and battery level. The hard ABS casing can withstand the rigours of the majority of industrial environments and the battery lasts for roughly 12 hours. Intuitive push button operation makes the meter very easy to use.

Castle part number: GA116B

Key Features

  • Measurement ranges: 35dB to 100dB; 55dB to 120dB; 75dB to 140dB
  • Linear operating range: 65dB
  • Class I accuracy
  • A or C weighting
  • Fast/slow response choice
  • 0.1dB measurement resolution
  • Lp (sound level measurement), Lmax, and Cpeak
  • Time elapsed shown
  • Tough plastic casing
  • 12-hour battery life
  • Digital screen
Specification

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 <32 dB(A) rms.
  • ‘C’ Weighting <38 dB(C) rms.

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).

SIZE AND WEIGHT

  • Dimensions: 60mm (width) x 35mm (depth excluding pocket clip) x 135mm (height without microphone) or 210mm (height with microphone)
  • Weight: 220g (including battery)