NA-28,NA28,声音频谱分析仪,声级计-[Rion]日本理音
Company	RION	RION
Country	Japan	Japan
Product	NA-28	NA-27
Major applicable specifications	JUS C 1509-1 Class1 IEC 61672-1 Class1 ANSI S1.4, S1.43	JIS C 1509-1 Class1 IEC 61672-1 Class1
Filter specifications	IEC 61260, ANSI S1,11Class1	IEC 61260 Class1
Wind screen correction	Possible	-
Measurement items	Lp Leq/LE/Lmax/Lmin/ LN/Lpeak/Ltm5	Lp Leq/LE/Lmax/Lmin/ LN/Lpeak/ Ltm3/Ltm5/dual measurement
Measurement range (A-characteristics)	25dB~130dB	28dB~130dB
Maximum peak sound level measurement	143dB	143dB
Linear operating range
All-pass(A-characteristics)	110dB	72dB
Spectrum	95dB	77dB
Time weighting	F/S/10ms/I	F/S/35ms/10ms/I
Analysis freguency range	1/3oct:12.5Hz~20kHz 1/1oct:16Hz~16kHz	1/3oct:12.5Hz~12.5kHz 1/1oct:16Hz~8kHz
1/1 and 1/3 octaves real-time analysis	Possible(~12.5kHz)	-
Back erase function	5s	3~5s
Strage	Infernal memory/Cfcard	Infernal memory
Recall processing	-(*1)	Possible
Analog output	AC/DC	AC/DC
Comparator output	Possible	-
External Trigger input	Possible	Possible
Display	Color semir transpurent TFT-LCD	monochrome
Other I/O terminals	USB/CF/Infrared remote control	RS-232C/Infrared remote control
Power requirement	16hours ( LR14:4 Alkaline batteries)	8hours (LR14:4 Alkaline batteries)
Dimensions	331mm*89mm*51mm	358mm*100mm*50mm
Weight	730g ( including Batteries)	800g