141
Specifications
Applicable standards
Sound Level Meter NL-21
IEC 61672-1:2002 Class 2
JIS C 1509-1:2005 Class 2
IEC 60651 and IEC 60804 was withdrawn and replaced by
IEC 61672-1:2002.
JIS C 1502 was withdrawn and replaced by JIS C 1509-1.
Sound Level Meter NL-31
IEC 61672-1:2002 Class 1
JIS C 1509-1:2005 Class 1
IEC 60651 and IEC 60804 was withdrawn and replaced by
IEC 61672-1:2002.
JIS C 1505 was withdrawn and replaced by JIS C 1509-1.
Measurement functions
Main processing functions
Simultaneous measurement of all items according to selected time
weighting and frequency weighting
Sound level L
p
Equivalent continuous sound level L
eq
Sound exposure level L
E
Maximum sound level L
max
Minimum sound level L
min
Percentile sound level L
N
(5 selectable settings)
Auxiliary processing functions
One selectable for simultaneous processing with main measurement
processing functions
Peak sound level (FLAT) L
peak
C-weighted peak sound level L
Cpeak
C-weighted equivalent continuous sound level L
Ceq
Power average of maximum sound level in a given in-
terval L
Atm5
To Next Page
Loading...
