Instruction manual

Preparations

Measurement setting screen Sub channel settings screen

Additional processing

When the [Sub Channel Settings] is set to ON, one of the following items

can be measured with main processing as simultaneous measurement

function (see page 77).

Equivalent continuous C-weighted sound level

Ceq

C-weighted peak sound level L

Cpeak

Z-weighted peak sound level L

Zpeak

Impulse equivalent continuous sound level

AIeq

Tact-max A-weighted sound level L

Atm5

(When the optional Extended Function Program NX-42EX is not installed,

AIeq

and L

Atm5

cannot be measured.)

The frequency response of additional processing is associated with that

of sub channel. Therefore, either L

Ceq

or L

Cpeak

Zpeak

) can be selected

when the sub channel has C-weighting (Z-weighting).

Note

If the additional processing value is not set to “ON”

on the display menu, measurement data of additional

processing is not stored.