Instruction manual

77
Measurement
Additional processing value measurement
When the sub channel is ON, one of the following processing functions is
available in addition to L
eq
, L
E
, L
max
, L
min
, and L
N
.
Equivalent continuous C-weighted sound level L
Ceq
C-weighted peak sound level L
Cpeak
Z-weighted peak sound level L
Zpeak
Impulse equivalent continuous sound level L
AIeq
Tact-max A-weighted sound level L
Atm5
Note
When the optional Extended Function Program
NX-42EX is not installed, L
AIeq
and L
Atm5
cannot
be measured.
Settable measurement value of additional processing
The measurement value that can be set by the additional processing is dif-
ferent according to the sub channel settings.
The relation between settable measurement value of additional processing
and the sub channel setting is as follows.
Measurement values of
additional processing
Sub channel settings
Measurement value
for each setting
Frequency weighting Time weighting
L
eq
CF (Fast)
L
Ceq
CS (Slow)
AIL
AIeq
L
peak
CF (Fast)
L
Cpeak
CS (Slow)
ZF (Fast)
L
Zpeak
ZS (Slow)
L
tm5
AF (Fast)L
Atm5
Note
If the additional processing value is not set to “ON”
on the display menu, measurement value are not
displayed.