标准摘要
[中文适用范围]： 本国际标准适用于通过两线连接电缆连接到开关放大器控制输入端进行操作的接近传感器。开关放大器包含一个直流电源，为控制电路供电，并由接近传感器的可变内阻控制。如果这些设备也符合 IEC 60079-11 标准，则可以在爆炸性环境中使用。注：这些设备由德国组织“NormenausschuG Fur MeB- und Regelungstechnik (NAMUR)”（测量和调节技术标准化办公室）定义。 [外文原描述]： Applies to proximity sensors connected for operation by a two-wire connecting cable to the control input of a switching amplifier. The switching amplifier contains a d.c. source to supply the control circuit and is controlled by the variable internal resistance of the proximity sensor. These devices can be used in an explosive atmosphere if they also comply with IEC 60079-11.
英文名称Low-voltage switchgear and controlgear - Part 5-6: Control circuit devices and switching elements - DC interface for proximity sensors and switching amplifiers (NAMUR)