Measuremen functions

          Sound level LP
           Equivalent continuose sound level Leq
          Sound exposure level LE
          Maximum sound level Lmax
          Minimum sound level Lmin
          Percentile sound level LN(5 selectable settings)

 Measuremen Time

         10sec, 1, 5, 10, 15, 30minutes, 1, 8, 24 hours, and  manual(maximum 200 hours)

 Measurement range

         A weighting : 28 to 138 dB
         C weighting : 33 to 138 dB
         FLAT :           38 to 138 dB

 Inherent noise

        A weighting :   20 dB or less
        C weighting :   20 dB or less
        FLAT  :            32 dB or less
        Linearity range:    100 dB
        Reference sound pressure level :   94dB
        Reference level range  :   30 to 120 dB

 Level range selection

         6 ranges in 10-dB steps 20 to 80 dB
                                        20 to 90 dB 
                                        20 to 100 dB
                                        20 to 110 dB
                                        30 to 120 dB
                                        40 to 130 dB  

 Frequency range

        Overall characteristics including microphone : 20 to 8000 Hz
        Electrical circuit characteristics (AC output) :  10 to 20000 Hz
        Electrical circuit characteristics (RMS) :   10 to 140000 Hz

 Frequency weighting

        A, C, FLAT

        RMS detection Digital processor

        Time weighting : Fast, Slow

 Calibration

        Electrical calibration with 1-kHz sine wave signal from built-in oscilator
        Acoustic calibration using sound calibrator
        Sampling interval 30.3㎲(Leq, LE)
                            100ms(LN)

 Data store functions

        Data can be stored in the internal memory

 Microphone

        1/2-inch electret condenser type
        Model :           UC-52
        Preamplifier :  NH-21

 Display

        Backklit LCD (128×64dots+121icons)
        Display screens
         Numeric and bar graph indicaton of sound level
        Processing results screen
        Level-timi graph (real-time level recording with 20-second horizontal axis)
        Message on menu screens can be changed into English, Germany or Spanish)

 Outputs

        AC/DC out
        I/O connector (Sound level meter control from and data output to a computer)
        Data output to printer DPU-414/CP-11/CP-10

 Dimensions

        Apporx, 260 × 76 × 33mm

 Weight(excluding batteries)

        Apporx, 400g

 Supplied accessories

        Windscreen                                    WS-10         1
        Carrying case                                 NL-21-031   1
        Connector cover(mounted on unit)  NL-21-005   1
        Hand strap                                      VM-63-017   1
        Batteries                                          IEC R6P       4

 Optical equipment

        AC adapter                             NC-34 series
        AC adapter with CE mark        UP0181165A (100 to 250V, 50/60 Hz)
        BNC-to RCA cable                  CC-24
        Microphone extension cable  EC-04 series
        Serial I/O cable                      CC-92
        Printer cable                           CC-93
        Sound calibrator                     NC-74
        Pistonphone                           NC-72
        Level recorder                        LR-06/LR-07