• Example 1
  • Example 2
  • Example 3

If only the NC value needs to be measured, the NX-42RT installed in the NL-42/NL-52 can also be used.Built-in rating curve allows on-screen graph display for checking.

Product List

Model Product Name Remarks
NL-52 / NL-42 Sound Level Meter, Class 1 / Sound Level Meter, Class 2
NX-42EX Extended function program
NX-42RT Octave, 1/3 octave real-time analysis program

This option program card enables measurement of room environmental sound level (N value or NC value) with the NA-28.

Product List

Model Product Name Remarks
NA-28 Sound Level Meter, Class 1 (and 1/3 octave band real-time analyzer)
NX-28BA Building Acoustic Card

In low-noise environments such as recording studios, permissible NC values are as low as NC-15. For such applications, using the Low-Noise Microphone UC-35P together with the RIONOTE as frequency analyzer makes it possible to perform measurements.

Product List

Model Product Name Remarks
UC-35P 1 inch sound field type electret microphone (with preamplifier)
SA-02A4 or RIONOTE (SA-A1 FTRTB2/FTRTB4) Multi-Channel Signal Analyzer or Portable Multi-function Measuring System When using the SA-A1 FTRTB2/FTRTB4, the 4 mA modification (SAA1S11/SAA1S12) is required.
NC-74 Sound Calibrator
EC-90 Series BNC-BNC Coaxial Cable