MCGO

Model

CENTER / 320

크기 / 무게

(275 × 64 × 30) mm, 약 280 g

측정정도

Lo: (30 ~ 80) dB / Med: (50 ~ 100) dB / Hi: (80 ~ 130) dB

청감 보정회로

A / C

동특성

Fast / Slow

주파수 범위

31.5 Hz to 8 kHz

마이크로 폰

전자 콘덴서 마이크로 폰

출력

AC / DC

사용환경

(0 ~ 40) ℃, < 80 % R.H.

보관환경

(-10 ~ 60) ℃, 60 % R.H.

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

    10seconds, 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