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ÀûºÐ¼ÒÀ½ °èÃø±â (ȯ°æºÎÇü½Ä½ÂÀÎ) ´ÜÁ¾ ´ëü NL-42
ÆǸŰ¡°Ý  : 2,508,000¿ø [VATÆ÷ÇÔ]
ºê·£µå  : Rion
Á¦Á¶»ç  : Japan
Á¦Ç°Äڵ堠: NL-21
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 Á¦Ç°°ü·Ã ÀÚ·á PDF
NEW IEC61672-1 ±Ô°ÝÀûÇÕ
³ÐÀº(Dynamic) ÃøÁ¤¹üÀ§(100dB)·Î »ç¿ë Áß º¯°æ ºÒÇÊ¿ä
µ¿½Ã¿¡ Leq, LN, Lmax µ¿½ÃÃøÁ¤°¡´É
½Ã°£º¯È­¿¡ µû¸¥ dB º¯È­ È®ÀÎ ±â´É Ãß°¡
NX-21SA(option):Octave filter 1/1,1/3 ÁÖÆļö ºÐ¼®°¡´É
ÀÌÁßÃøÁ¤°¡´É(Laieq,Lcpeak,Lpeak,Latm5)
´ë¿ë·® Memory Card·Î Àå½Ã°£ Data ÀúÀå°¡´É(Option)
ºñ±³Ãâ·Â±â´ÉÀ¸·Î ÇպΠÆÇÁ¤°¡´É
AC/DC Ãâ·Â, RS-232C Interface
Data Memory: ³»ºÎ Memory/Card(100ro Data)
ÀÚµ¿1 ¹× ÀÚµ¿2 (Card)
Measurement functions Auxiliary processing functions
Main processing functions
Simultaneous measurement of all items according to selected time weighing and frequency weighing:
Lp, Leq,LE,Lmin,LN(5 selectable settings)
One selectable for simultaneous processing with main measurement processing functions
Lpeak, Lcpeak, Lceq, LAtm5, LA1, LAieq
Measurement time RMS detection Digtal processor
10seconds, 1,5,10,15,30 minutes, 1,8,24 hours and manual
(Maximum 200hours)
Time seighing : Fast, Slow, Impulse
(Impulse is selectable only for auxiliary processing functions)
Measurement range Sampling interval
A weighing: 28 to 138dB
C weighing: 33 to 138dB
FLAT:       38 to 138dB
Peak sound level: 141dB
NL-21: 30.3§Á (Leq,Lmax, Lmin,LE)
       100ms(LN)
NL-31: 20.8§Á (Leq,Lmax, Lmin,LE)
       100ms(LN)
Inherent noise Data store functions
A wighting:    22dB or less(NL-21)   18dB or less(NL-23)
C wighting:    27dB or less(NL-21)   26dB or less(NL-23)
FLAT: 32dB or less
Linearity range 100dB
Reference sound pressure level 94dB
Reference level range 30 to     120dB
Manual store: Up to 100 data sets
Auto store 1: Sound level or LAeq, 1sec can be stored automatically on memory card every 100ms, 200ms or 1s.
Auto store 2: Main and auxiliary processing results and processing start time are stored on CF card for each measurement a, performed at preset intervals.
Frequency range Frequency weighting
Overall characteristics including microphone:
NL-21: 20 to 8000Hz, NL-31: 20 to 20000Hz
A, C, FLAT
Microphone and preamplifiler Level range selection
1/2-inch prepolarized condenser type
Model: UC-52 (NL-21), UC-53A (NL-31)
Sensitivity: -33dB (NL-21), -29dB (NL-31)
Preamplifier: NH-21
6 ranges in 1-0dB steps
7 ranges when optional 1/1, 1/3 Octave Filter Program Card NX-21S
Universal Filter Program Card NX-21V is ON

 

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