|
|
 |
|
 |
|
PHP Web Board
정밀소음계[NL-20] |
|
소음계[NL-20]
- 환경부 승인제품(NESM-63)
- IEC/CDV 61672-1 Class2 규격적합
- 넓은(Dynamic)측정범위(100dB)로 사용중 변경불필요
- 동시에 Leq,LN, Lmax 동시 측정가능
- 시간변화에 따른 dB 변화확인 기능 추가(T-L기능)
- A, C, FLAT 주파수 특성
- AC/DC 출력가능
- RS-232C Inteface
- Data Memory 가능(100개)
(NN20,nl20)
|
|
|
|
- MODEL : NL-20
- MEASUREMENT FUNCTIONS ;
....... Sound Pressure level(LP)
....... Equivalent continuous sound level(Leq)
....... Sound exposure level(LE)
....... Maximum Sound level(Lmax)
....... Minimum Sound level(Lmin)
....... Percentile Sound level Ln(5 selectable settings)
- Measurement time : 10Seconds, 1, 5, 10, 15, 30 minutes, 1, 8, 24 hours, and manual(maximum 200hours)
- Measurement range ;
....... A : weighting : 28 to 138 dB
....... C : weighting 33 to 138 dB
....... FLAT : 38 to 138 dB
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
)
