Class 1 Risk Assessment / Environmental System : 马来西亚的首选 Inter Products Marketing Sdn Bhd

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Castle / NK002C

Class 1 Risk Assessment / Environmental System

GA6224 (Class 1) Industrial / Environmental Logging Sound Level Meter c/w Calibrator (Dual level, Class 1) (Includes GA690 Barometer) and Data management software and interface cable for use with GA6224

The in-depth combination risk assessment package for larger applications.

Enhanced data analysis and manipulation
Portable and simple to use

The meter is 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 meter 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. Castle GA6224 provides 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 meter 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.

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)