GA6224 Industrial and Environmental Logging Sound Level Meter, Class 1 : 马来西亚的首选 Inter Products Marketing Sdn Bhd

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Castle / GA6224

GA6224 Industrial and Environmental Logging Sound Level Meter, Class 1

These meters are ideally equipped for carrying out Noise at Work Risk Assessments, as well as the majority of environmental survey work. The range of parameters measured, the wide measuring capability of the meters and the ease of use, mean that this equipment is ideal for companies to run their own risk assessments.

Measuring noise really does not have to be complicated, even for the novice, and the GA6224 (Class 1) Integrating Sound Level Meters are designed with this in mind. These meters are ideally equipped for carrying out Noise at Work Risk Assessments, as well as the majority of environmental survey work. The range of parameters measured, the wide measuring capability of the meters and the ease of use, mean that this equipment is suitable for anything from aircraft noise to lawnmower design, and from construction sites to laboratories.

Noise at Work Measurements

These noise meters provide the essential measurements required by the Control of Noise at Work Regulations 2006, including Leq (equivalent continuous level) in ‘A’ and ‘C’ weightings, and Cpeak. The meters can data-log any of these parameters in up to 10,000 data-memories, making it more than powerful enough for the task in hand.

Environmental Monitoring

Also ideally suited to environmental monitoring, these meters can measure 5 selectable percentile values and sound exposure (LE). Most environmental measurements require Leq and L90 plus possibly one or two other measurements. These can all be measured simultaneously and data-logged into its 10,000 data-point memory.

Multi-purpose Measurement

Many sound measuring tasks require the measurement of Leq (equivalent continuous level), Lmax (Maximum rms level), LE (Sound Exposure) or percentiles, and all of these can be completed using these meters with their accessories.

Operation

The Castle GA6224 (Class 1) Integrating Sound Level Meter has easy to follow menu systems and clearly marked keys, all designed to make the meter simple-to-use. The back-lit LCD display is also very clear with large figures and a quasi-analogue display bar to show the changes in sound level as they happen.

Features

Equivalent continuous level (Leq)

5 user selectable percentile values (Ln)

Wide Linearity range of 90dB

RS232 for data output to optional software

Memory storage for 10,000 datapoints

Back-lit LCD display

Technical Specification

Standards GA6224 : Conforms with IEC 61672-1:2002 Class 1, IEC 60651:1979 and IEC 60804:2000 Type 1 Microphone GA6224 : 7146N 1/2'' electret condenser microphone

Measuring Ranges	27 - 130dB(A), 38 - 130dB(C), 41 - 130dB(F)
Frequency Ranges	20Hz - 20kHz
Time Weighting	FAST, SLOW, IMPULSE
Peak Range	50 - 133dB(A), 60 - 133dB(C), 70 - 133dB(F)
Level Range	20 - 80dB, 20 - 90dB, 20 - 100dB, 20 - 110dB, 30 - 120dB, 40 - 130dB
Linearity Range	90dB
Frequency Weighting	A, C, FLAT
Measurement Items	Lp, LMH, Leq, LAe, Lmax, Lmin, Lx (L5, L10, L50, L90, L95), Peak
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 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 and a function that deletes preceding 3 or 5 sec. data
Calibration Signal	Internal generator (1 kHz sine wave)
AC Output	1Vrms (FS), output impedance: 600O, load impedance > 10kO
DC Output	2.5V (FS), 0.25V/10dB, output impedance: 50O, load impedance > 10kO
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)