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Castle GA6226 Class 2 Sound Level Meter

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  • Class 2 measurement of sound from 28dB to 130dB with 100dB linear range
  • Suitable for environmental monitoring and performing noise at work assessments
  • Datalogging functionality saves up to 10,000 readings to internal memory
(Ex. VAT) £1,125.00 (Inc. VAT) £1,350.00

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  • Description

    Castle GA6226 Class 2 Sound Level Meter

    The Castle GA6226 Class 2 Sound Level Meter is an industrial and environmental datalogging noise meter that can measure sound levels between 28dB and 130dB via its Class 2 microphone. It can pick sound at any frequency between 20Hz and 8kHz and has an enormous 100dB linearity range which allows it to capture a full spectrum of sound without having to switch ranges.

    These measurement capabilities make the Castle GA6226 ideally suited to both environmental monitoring and performing ‘noise at work’ risk assessments. It can monitor average sound level (Leq) in addition to peak noise and maximum and minimum readings which is extremely useful for safety at work checks. The low noise floor, percentile and interval measurement, meanwhile, are ideally suited to environmental monitoring. The user has the choice between A, C, and Z frequency weighting plus a choice of several ‘fast’, ‘slow’, or ‘impulse’ response times.

    The datalogging function of the Castle GA6226 is particularly useful for environmental monitoring. It can save up to 10,000 readings in its internal memory and these can then be downloaded to a PC using the RS232 data output. Results are displayed on the backlit LCD display which also features an analogue bar graph-style display function.

    The Castle GA6226 is surprisingly easy to use despite its advanced functionality. Intuitive menus are easily navigated using the simple push keys and allow the user to take full advantage of everything the meter has to offer.

    Castle part number: GA6226

    Key Features

    • Minimum measurement: 28dB (A), 31dB (C), 41dB (F)
    • Maximum measurement: 130dB (A, C, F)
    • A, C, flat weighting
    • Fast, slow response time
    • Linearity range: 100dB
    • Resolution: 0.1dB
    • Class 1 accuracy
    • Frequency range: 20Hz to 20kHz
    • Lmax, Lmin, Le, Leq, Lx measurement
    • Percentile measurement
    • Clear backlit LCD display
    • 10,000 data points internal memory
    • RS232 port for data download
  • Specification

    • Description: Integrating Sound Level Meter
    • Standards: Conforms with IEC 61672-1:2002, Class 2, IEC 60651:1979 and IEC 60804:2000 Type 2
    • Measuring ranges: 28 – 130dB(A), 33 – 130dB(C), 38 – 130dB(F)
    • Frequency range: 20Hz – 8kHz
    • Microphone: 7052N 1/2” electret condenser microphone
    • Time weighting: FAST, SLOW
    • Peak range: 50 – 133dB(A), 60 – 133dB(C), 70 – 133dB(F)
    • Level range: Six ranges: 20 – 80dB, 20 – 90dB, 20 – 100dB, 20 – 110dB, 30 – 120dB, 40 – 130dB
    • Linearity range: 100dB
    • Frequency weighting: A, C, FLAT
    • Measurement items: Lp, LMH, Leq, LAe, Lmax, Lmin, Lx (L5, L10, L50, L90, L95), LPeak.
    • Measurement time: 1s, 3s, 5s, 10s, 1min, 5min, 10min, 15min, 30min, 1h, 8h, 24h manual (max: 199h 59m 59s)
    • Sampling interval: 20.8µs (Leq), 10ms (Lmax, Lmin)
    • Lx Sampling interval: 100ms
    • Display: LCD with backlight (128×64 dots)
    • Digital display: Four line, resolution 0.1dB (display update 0.1s)
    • Bar display: Display update: 0.1s
    • Warning: Over range: +3dB from upper limited scale; Under range: -0.6dB from lower limited scale
    • Battery display: Four level display of battery condition
    • Built-in memory: Approximately 10, 000 samples: 1, 000 sets of results
    • Built-in calendar: Year/month/day/ hour : minute : second
    • Pause: Pause /data clear
    • Calibration signal: Internal generator (1 kHz sine wave)
    • AC output: 1Vrms (FS), output impedance: 600Ω, load impedance > 10kΩ
    • DC output: 2.5V (FS), 0.25V/10dB, output impedance: 50Ω, load impedance > 10kΩ
    • RS232 interface: RS-232C (asynchronous); data bits : 8 bits; stop bit : 1 bit; parity : none; baud rate : 4800, 9600, 19200 bps
    • Power supply: Four 1.5V size-AA batteries or AC adapter
    • Battery life: Alkaline batteries: 20 hours continuous operation. Use of LCD backlight will shorten battery life (approximately 1/3).
    • Operating temperature: -10 to +50°C
    • Humidity: 30% to 90% (without condensation)
    • Size: 85(W) × 287(H) × 46(D) mm
    • Weight: 370g (including batteries)
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