标准摘要
[中文适用范围]： 适用于具有电气输入和输出的传感器，用于测量标称频率在 5 Hz 至 1 500 Hz 之间的交流电量。输出信号可以是模拟直流电的形式或数字形式。取代 IEC 688-1 和 IEC 688-2。该合并版本由第二版（1992年）及其修正案1（1997年）组成。因此，无需对本出版物进行修订。 [外文原描述]： Applies to transducers with electrical inputs and outputs for making measurements of a.c. electrical quantities with a nominal frequency between 5 Hz and 1 500 Hz. The output signal may be in the form of an analogue direct current or in digital form. Supersedes IEC 688-1 and IEC 688-2. This consolidated version consists of the second edition (1992) and its amendment 1 (1997). Therefore, no need to order amendment in addition to this publication.
英文名称Electrical measuring transducers for converting a.c. electrical quantities to analogue or digital signals