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SC-2600/SC-2500A/SC-2120A ONO SOKKI sound calibration device

Producer: ONO SOKKI

Category: Decibel Tags: Audio calibration, Sourd Calibrator

ONO SOKKI SC-2600/SC-2500A/SC-2120A is a device used to calibrate measurement microphones and confirm indication values for sound level meters. Since the loudness of sound is affected by temperature and air pressure, using a sound calibrator before and after measurement is important to make accurate measurements. Some standards specify that microphones should be calibrated using a sound calibrator. In addition, in JIS C 1509 and IEC 61672-1 standards, when using a class 1 sound level meter, using a Class 1 sound calibrator is a mandatory requirement.

About Sound Calibration

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.

Features

SC-2600

- It conforms to JIS C 1515:2020 Class 1 and has a nominal sound pressure level of 94 dB. In addition to feedback control, it has built-in compensation functions for static pressure and temperature, allowing it to generate a stable sound pressure.
- Recommend using this product to perform high-precision measurements using the Low-noise Microphone MI-1282M10^*.

^* A sound calibrator with a nominal sound pressure level of 94 dB is required for calibration of low-noise microphones.

SC-2500A

It conforms to JIS C 1515:2020 Class 1 and has a nominal sound pressure level of 114 dB. Using feedback control, it can generate a stable sound pressure.
Since it generates a high sound pressure level of 114 dB, calibration can be performed even if the measurement environment is loud such as in factories or outdoors, without being affected by the noise.

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.

Specification

Model name	SC-2600	SC-2500A	SC-2120A
Applicable standards	JIS C 1515:2020 Class 1 IEC 60942:2017 Class 1 ANSI S1.40-2006 (R2011) Class 1		JIS C 1515:2004 Class 2 IEC 60942:2003 Class 2
Method	Speaker
Compatible products	1/2-inch microphone : MI-1235/MI-1271/MI-1433/MI-1271M12/MI-1282M10 1/4-inch microphone : MI-1531^2 High performance Sound Level Meter: LA-7200/LA-7500/LA-7700 Integrating-average Sound level meter : LA-1411/LA-1441A/LA-4441A Ultraminiature Microphone : MB-2200M10^3	1/2-inch microphone : MI-1235/MI-1271/MI-1281^1/MI-1433 1/4-inch microphone : MI-1531^2 High performance Sound Level Meter : LA-7200/LA-7500/LA-7700 Integrating-average Sound level meter : LA-1411/LA-1441A/LA-4441A	1/2-inch microphone : MI-1235/MI-1271/MI-1433 High performance Sound Level Meter: LA-7200 Integrating-average Sound level meter: LA-1411/LA-1441A Ultra-miniature Microphone: MB-2200M10^*3
Sound pressure level	Nominal sound pressure level : 94 dB Deviation of sound pressure level:± 0.20 dB or less^*4	Nominal sound pressure level : 114 dB Deviation of sound pressure level:± 0.20 dB or less^*4	Nominal sound pressure level : 94 dB Deviation of sound pressure level:± 0.5 dB or less^*4
Total distortion	0.5 % or less^*4		0.5 % or less
Frequency	Nominal frequency :1000 Hz Frequency deviation : ± 0.1 % or less^*4		Nominal frequency :1000 Hz Frequency deviation : ± 1 % or less^*4
Operating environment	Air temperature : -10 to 50 °C (with no condensation) Static pressure: 65 to 108 kPa Relative humidity: 25 to 90 % (Excluding a combination of air temperature and humidity that exceeds dew-point temperature of 39 °C or higher.)
Power requirements	Type AA battery (LR6 or HR6) × 2		9V flat battery (6F22 or 6LR61) × 1
Battery life	10 hours or more continuous operation (when using LR6)		20 hours or more continuous operation (when using 6F22)
Outer dimensions (not including protruded section)	84 (W) × 53 (H) × 76 (D) mm		52 (W) × 45 (H) × 130 (D) mm
Weight	Approx. 220 g (including 2 battery cells)		Approx. 300 g (not including battery cells)
Accessories	Instruction manual (J, E, C) × 1 Type AA battery (LR6) × 2 Protection cover for coupler × 1		Instruction manual × 1 9V flat battery (6F22) × 1

*1: This product is discontinued.
*2: SC-0313 adapter attached to MI-3140 1/4-inch preamplifier is required.
*3: MB-0210 Ultraminiature Microphone Calibration Adapter (Option) is required.
*4: The value under the standard environment (reference environmental condition:air temperature: 23 °C, static pressure: 101.325 kPa, relative humidity: 50 %

Maintenance :

► Please re-calibrate after use for a certain period through our purchase store. Local Vietnam : SEMIKI CORP