成全电影大全在线观看国语版免费,亚洲国产成人无码av在线,久久久中日ab精品综合

Provide high-tech measuring products and technical developments for instrument service providers

NDT and Photoelectric Measurements

產品詳情

Share to：

Sound Level Calibrator ND9A

Spec：	For quick and easy calibration of sound level meters and sound measuring systems.
Model：	ND9A

產品詳情

　Features

* Handy sound source for quick and easy calibration of sound level meters and sound measuring systems.
* The Calibrator employs solid state integrated circuitry that provides accurate and stable performance.
* Sensitivity calibration of microphones.
* Suitable for field and laboratory use.

Model	ND9A	ND9B
Standards	GB/T15173,ANSI S1.40,IEC942
Sound Pressure Level	94 dB	94 dB
Sound Pressure Level	114 dB	114 dB
Accuracy	0.5 dB	0.3 dB
Frequency	1000Hz
Cailbration Of Microphones	1’’,1/2’’
Power Supply	1x9V 6F22 Battery
Dimensions	142x47x47 mm
Weight	275g(Including Battery)

Standard Accessories	Main Unit
	Windscreen
	Carrying Case (B04)
	Operation Manual

　Downloads

　SoundLevelCalibrator_ND9A_Catalog

　ND9A_EN_EN_Manual

　RS232Software

NOTE: The name of RS232 Software is 'RS232_EN_4.0.rar' after downloading. Just decompress 'RS232_EN_4.0.rar' with Decompress Software, Enter password:www.landtek.cn. a folder named 'RS232_EN_4.0' is abtained. There are RS232 Software and install instruction inside the folder.