ONO SOKKI SC-2120A máy hiệu chuẩn cường độ âm Class 2 93.5-94.5dB

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 indicated 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.

ONO SOKKI SC-2120A It conforms to JIS C 1515:2004 Class 2 and has a nominal sound pressure level of 94 dB. It can also be used for simple operation checks. It is a dynamic speaker type, cost-effective model.

Pic.: Ono Sokki Technology SC-2120A Sound Calibrator (Class 2) at Semiki's warehouse

Specifications

Maintenance and calibration :  ► We also have calibration certificate attached ( optional ) ► Please re-calibrate after use for a certain period through our purchase store. Local Vietnam : SEMIKI Ins   DISTRIBUTED BY: Semiki instrumentation Co., Ltd Email:  sales@semiki.com Office tel: +84 28 2253 3522 ~DOING OUR BEST FOR YOU~