The Namur NE43 is a recommendation that gives a guideline on how a sensor fault can be indicated to a control system by means of the 4-20mA signal. It, therefore, defines two signal levels outside of the normal operation range:

2024年12月24日 · 为了有效应对这些问题，Namur NE43标准提供了关于如何通过4-20mA信号向控制系统指示传感器故障的指南。 Namur NE43标准主要定义了正常工作范围之外的两个信号区域：信号饱和和硬件故障。

2013年2月3日 · 建议使用 Namur NE43，该规范提供了有关如何通过 4-20 mA 信号向控制系统指示传感器故障的指南 。 因此，它定义了正常工作范围之外的两个信号区域： 信号饱和（ 超出测量范围 ）

2019年11月20日 · NAMUR NE 43 can be defined as: Through extending the range of the 4-20mA signal, a sensor failure is indicated. This is interpreted as a sensor error if the current is below 3,6 mA or above 21 mA.

NAMUR NE 43 standard identifies fault 4-20mA signal which is connected from PLC or DCS control system to field transmitters or sensors.

NAMUR NE43 is a standard used to define the operating AO-LL and AO-UL values. Similar to the Standard Analog Output Signal, NAMUR NE43 compliant transmitters are designed to output signals greater than the 4 to 20 mA “ase” signal, allowing for a small amount of Signal Saturation. To be compliant to NAMUR NE43, the transmitters

2024年11月13日 · namur ne43标准是针对4-20ma信号的故障检测和报警的一种标准规范。 根据该标准，当传感器或线路出现故障时，可以通过改变电流信号来通知控制系统。 具体来说，NAMUR NE43定义了两个超出正常工作范围的电流水平： 信号饱和（超出测量范围）

NAMUR NE 43 is a standard that defines the operating AO-LL and AO-UL values. The transmitter outputs a 4-20 mA current. However, as per NAMUR NE 43, the transmitter has it upper and lower current values.

2021年7月26日 · The NAMUR Recommendation NE 43 has been revised and may now be obtained from the NAMUR Office. The change compared to the previous edition of NE 43 (2003-02-03) mainly concern the introduction of a safety margin for signal detection in control systems and the device behavior during initialization.

NE43是Namur在过程自动化领域中发布的一个标准。 NE43的全称是"Signal Check for Active signals"，即"用于主动信号的信号检查"。 该标准规定了主动信号（如电流信号）的检查方法，以确保信号的稳定性和可靠性。