.符合EN/IEC60942ClassLS 和 Class1 与ANSIS1.40- 1984的规定。为了提高测量结果的可靠性，可以在每次测量进行校准，快速消除本地测量环境的误差。双声压可以保障在嘈杂的环境中也可进行详细检查，保证传声器线性度。 

   声计和其他声学测量仪器的校准规格：

  执行标准：IEC/EN 60942 (2017) Class 1

校准声压：94和114 dB

校准频率：1000 Hz

校准精度：±0.2 dB

校准规格: 1英寸, 1/2英寸和1/4英寸(传感器)

 Complies with EN/IEC60942ClassLS ａnd Class1 ａnd ANSIS 1.40-1984. To improve the reliability of measurement results, calibration can be performed before each measurement, quickly eliminating errors in the local measurement environment. The dual sound pressure stage guarantees detailed inspections in noisy environments ａnd ensures microphone linearity.