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ONO SOKKI SC-2120A sound level calibrator Class 2 93.5-94.5dB

Producer: ONO SOKKI

Category: Decibel Tag: Sound Calibrator

Ono Sokki Technology Japan
Sound Calibrator SC-2120A (Class 2) 94 ± 0.5 dB
The SC-2120A is a simple sound calibrator used to check the operation of sound measurement systems.
ONO SOKKI SC-2120A Complies with JIS C 1515:2004 Class 2 and has a nominal sound pressure level of 94 dB. It can also be used for simple operational testing. This is a dynamic speaker, cost-effective model. Fits 1/2″ microphones.
Long battery life (up to 20 hours of continuous operation).
What is an audio calibrator?
This instrument is used to calibrate the measuring microphone unit and confirm the indicated value for the sound level meter. Since sound pressure is affected by temperature and air pressure, it is important to use a sound calibrator before and after measurement to make accurate measurements. Some standards require that microphones be calibrated using a sound calibrator.

Ono Sokki Technology Japan

SC-2120A Sound Calibrator (Class 2)

The SC-2120A is a simplified sound calibrator for use in operational checking of acoustic measurement systems.
Accommodates 1/2″ microphones.
Long battery life (up to 20 hours of continuous operation).

What is a sound calibrator?
It is used for unit calibration of measurement microphones and confirmation of indication value for sound level meter. Since sound pressure is affected by temperature and air pressure, it is important to use a sound calibrator before and after measurement in order to perform correct measurements. Some standards stipulate that microphones must be calibrated with sound calibrators. In addition, in JIS C 1509 and IEC 61672-1, when using a class 1 sound level meter, using a class 1 sound calibrator is required.

Important points for using calibrator
The calibration sound pressure level may be different depending on the type of the microphone. Be sure to check the calibration sound pressure level in the instruction manual before performing calibration.
A Class 1 Sound Calibrator is recommended for a Class 1 (or type 1) Sound Level Meter and microphone.
Periodical calibration of a sound calibrator is necessary to secure its performance. Calibration of once a year is recommended. Please contact us for more details.