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Sound Calibrator
  SC-3100 
  SC-2120

Photo (SC-3100 & SC-2120 Sound Calibrator)




The SC-2120 / 3100 sound calibrator is used for calibration of sound level metes, generating signal with sound pressure level of 94.0 dB at 1 kHz (SC-2100) or 124.0 dB at 250 Hz (SC-3100).

Both of sound calibrator is battery-operated and easy to carry in the measurement field.
The SC-3100 sound calibrator can be applicable to either 1/2 or 1 inch type microphone, using an adaptor.

Features

  • Generating 124 dB SPL at 250 Hz (SC-3100)

  • Generating 94.0 dB SPL at 1 kHz (SC-2120)

  • Battery operated, by three of AA dry cell (SC-3100), by 1 of 6F22 dry cell

  • Applicable to either 1/2 or 1 inch microphone using an adaptor (SC-3100)

Specifications

Model SC-2120 SC-3100
Conforming standard IEC 942 Class 2 (L) IEC 942 Class 1 (L)
Applicable microphone 1/2 inch microphone 1/2 or 1 inch microphone
Absolute sound pressure level 94.0 dB SPL ±0.5 dB at 1 kHz  124 dB SPL ±0.2 dB at 250 Hz
Distortion rate 0.5 % or less 1 % or less
Power supply Dry cell 6F22 or 6LR61 x 1 AA dry cell x 3
Battery life approx. 20 hrs
(with 6F22 manganese battery)		 approx. 2.5 hrs or long
(with manganese battery)
Operating temperature -10 to +55°C -10 to +55±°C
Outer dimensions 52 (W) x 45 (D) x 130 (H) mm 60 (W) x 38 (D) x 200 (H) mm
Weight Approx. 300 g Approx. 600 g

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