▒ 특  징

	◎	환경부 형식승인 번호 :NESM-49
	◎	본 채널과 보조채널 로 주파수 보정 및 동특성 선택 다양한측정가능
	◎	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)

▒ 사  양

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 130dB

C weighting : 33 to 13dB

Flat : 38 to 138dB

Peak sount level :141 dB

Linearity range

100dB

Reference sound pressure level

94dB

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