RION Sound Calibrator NC-74 | Nihon Denkei India Private Limited

Compact and lightweight unit requires no atmospheric pressure compensation

Sound Calibrator

Model:

NC-74

Maker:

RION CO.,LTD.

Features

Compliant with IEC 60942:2003 class 1 and JIS C1515:2004 class 1
Allows calibration of 1-inch and 1/2-inch microphones
No need for atmospheric pressure compensation
Frequency 1 kHz, SPL 94dB

Use

Carefully insert the microphone all the way into the coupler of the NC-74. Then simply turn the power on to apply a constant sound pressure level to the diaphragm of the microphone.
The performance of the NC-74 is suitable for calibration of high-precision sound level meters.
The unit is compact, lightweight, and easy to use. Two IEC LR6 (size AA) alkaline batteries will power the unit for more than 30 hours of continuous use at room temperature.

Specifications

Applicable standards	IEC 60942:2003 class 1 JIS C1515:2004 class 1
Suitable microphones	1-inch microphones	IEC 61094-1 Type LS1P
		UC-27
		UC-25
		UC-34
	1/2-inch microphones	IEC 61094-1 Type LS2aP
		UC-59
		UC-57
		UC-52
		UC-26
		UC-30
		UC-31
		UC-33P
Nominal sound pressure level	94 dB
Sound pressure level tolerance	±0.3 dB
Nominal frequency	1 kHz
Frequency tolerance	±1.0 % or less
Power requirements	IEC LR6 (size AA) alkaline battery × 2
Dimensions, mass	Approx. 49 (H) × 80 (W) × 74 (D) mm Approx. 200 g (including batteries)
Supplied accessories	Case × 1 IEC LR6 (size AA) alkaline battery × 2 1/2-inch microphone adapter NC74S10 × 1

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