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PHP Web Board
정밀소음계[NL-21/NL-31] |
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- 적분소음계
- 환경부 형식승인 번호 :NESM-49
- 본 채널과 보조채널 로 주파수 보정 및 동특성 선택 다양한
측정가능
- 9가지 특정 기능:LP, Leq, LE, Lmax, Lmin, LX, Lpeak, Ltm3와 Ltm5,
- 7200set data 저장용량(Leq, LE, Lmax, Lmin, LX)
- 실시간 그래픽 표시화면(샘플간격 10ms, 100ms, IS선택
- 소음분석을 위한 오타브 필터 내장가능(선택)
(NL21,nl21,NL31,nl31)
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<> Measurement functions
main precossing functions
Simultaneous measurement of all items according to selected time weighting and frequency weighting
Sound level LP
Equivalent continuous sound level Leq
Sound exporsure level LE
Maximum sound level Lmax
Minimum sound leve Lmin
Percentile sound level LN(5 selectable settings)
- Measurement time : 10 seconds, 1, 5, 10 15, 30, minutes, 1, 8, 24, hours, and manual (maximum 200hours)
- Measurement range ;
.... A : weighting : 28 to 130 dB
.... C : weighting : 33 to 130 dB
.... Flat : 38 to 138 dB
- Peak sount level : 141 dB
- Linearity range : 100 dB
- Reference sound pressure level : 94 dB
- Referens level range: 30 to 120 dB
- Level range selection : 6 range in 10- dB steps ( 7 ranges when optional 1/1,1/3 Octave Filter Program Card NX-215 or
Optional Universal Filter Program Card NX-21V is ON)
- Frequency weighting : A, C, FLAT
- Display : Backlit LCD (126 X 64 Dots + 121 icons)
- Outputs ;
.... AC/DC output Key-selectable AC or DC output I/O sonnector
.... Sound level meter control from and data output to a computer
- Data output to printer : DPU -414/CP-10
Comparator output
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