Integrating sound level meter SC-250

The SC-250 is a class 1 sound level meter that can be upgraded to a band spectrum analyser. It is the first integrating sound level meter with measurement protocols and therefore simplifies the process of obtaining results as much as possible.

It guides the user step by step through the measurements. The SC-250 has a large display, where all the useful information for the measurement is presented. The data shown on the screen varies according to the chosen application, so that only the parameters required for each application are displayed.

Standard equipment

  • Sound level meter SC-250
  • Protective cover
  • PC software

Technical data

Measuring range

  • C-130 + PA-13
  • LF, LS, LT and Lt
  • Measuring margin

    A C

  • Upper limit

    137                     137

  • Lower limit

    24,8                    25,8

  • C-250 + PA-14
  • LF, LS, LT and Lt
  • Measuring margin

    A C

  • Upper limit

    137                     137

  • Lower limit

    23,7                    26,9

  • Lpeak
  • Linear measuring range

    55 -140 dB

Noise

  • C-130 + PA-13
  • Electrical noise

    A C

  • Maximum

    15,7                     17,1

  • Typical

    15,0                     16,3

  • Total noise (electrical + thermal microphone)
  • Maximum

    21,2                     22,0

  • Typical

    20,6                     21,8

  • C-250 + PA-14
  • Electrical noise

    A C

  • Maximum

    15,7                     16,7

  • Typical

    15,1                     16,4

  • Total noise (electrical + thermal microphone)
  • Maximum

    18,9                     20,8

  • Typical

    18,4                     20,2

Further information

  • Lpeak peak detector

    Rise time < 75 μs

  • Frequency weighting

    Conforms to IEC 61672 class 1 / Weightings A and C

  • Time weighting

    LF, LS, according to tolerances class 1

  • Parameters

    Resolution: 0.1 dB

  • Influence of magnetic fields

    The integrating sound level meter complies with the basic specifications of standard 61672-1 for the required immunity to AC mains frequency and radio frequency fields.

  • Influence of temperature

    Operating range: -10 / +40 ºC

    Maximum error (0 to +40ºC): 0.5 dB

    Storage without batteries: -20 to +60 °C

  • Influence of vibrations

    For frequencies from 20 to 1,000 Hz and m/s2: < 75 db (A)

  • Power supply

    2 x 1.5 V batteries

  • Dimensions

    336 x 82 x 20 mm

  • Weight

    With batteries: 487 g

    Without batteries: 438 g

Software

Ryme Worldwide has SMRW (Software Maquinaria Ryme Worldwide) for its equipment, which is responsible for collecting information from our equipment and peripherals, analysing it and displaying it on the information output device. All of this is accompanied by the necessary electronics to optimise performance to the maximum.

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