工业和过程测量变送器的测试参考条件与程序： 第1部分：所有类型变送器的一般程序

[中文适用范围]： IEC 62828-1:2026 确立了适用于评估工业过程及机械设备测量与控制系统中所用各类过程测量变送器（PMT）测量性能的参考条件与测试程序的一般框架。就本文件而言，模拟型 PMT 指仅具备模拟电流和/或电压输出的过程测量变送器，不论其采用的技术或电路复杂程度如何；其他仅具备数字输出或同时具备模拟与数字输出的过程测量变送器均视为数字型 PMT。本文件为 IEC 62828 系列其他部分提供共同参照；针对特定类型 PMT（如压力、温度、液位、流量等）的特定测试程序及附加要求则由该系列其他部分规定。按 IEC 60947 系列规定的传感器件不在此文件范围内。 注 1：在工业与过程应用中，为指代过程测量变送器，也常使用“工业变送器”或“过程变送器”等术语。 注 2：为行文更清晰，当“工业与过程测量变送器”这一完整定义使句子过长时，本文件采用简称“变送器”或"PMT"。 本第二版取消并替代了 2017 年出版的第一版，属技术修订。与前一版相比，本版本包含以下重要技术变更：a）删除了信息性附录 E、F、G 和 H；b）新增信息性附录 G“4 mA 至 20 mA 模拟型 PMT 的信号电流示例”（该附录由 IEC 62828-2:2017 移至本文件）；c）将“预热时间”“稳定时间”及“输出信号”的定义从 IEC 62828-4:2020 移至本文件；d）对“误差”与“准确度”的定义进行了修订；e）关于测试报告的条款已重新编写。 [外文原描述]： IEC 62828-1:2026 establishes a general framework for defining reference conditions and test procedures applicable for assessing the measurement performances of all types of industrial and process measurement transmitters (PMTs) used in measuring and control systems for industrial process and machinery. For the purpose of this document, an analogue PMT is a process measurement transmitter with only analogue current and/or voltage output(s), irrespective the technology adopted and the complexity of the circuitry. All the other process measurement transmitters, with digital output(s) only or with hybrid analogue and digital output(s), are considered to be digital PMTs. This document constitutes a common reference for the other parts of the IEC 62828 series. Specific test procedures and additional requirements for given types of PMTs (pressure, temperature, level, flow, etc.) are covered by other parts of this series. Sensing devices according to the IEC 60947 series are excluded from the scope of this document. NOTE 1 In industrial and process applications, to indicate the process measurement transmitters, it is common also to use the terms "industrial transmitters", or "process transmitters". NOTE 2 For better clarity, when the complete definition "industrial and process measurement transmitter" makes the sentence too long in this document, the short term "transmitter", or PMT, is used instead. This second edition cancels and replaces the first edition published in 2017. This edition constitutes a technical revision. This edition includes the following significant technical changes with respect to the previous edition: a) informative Annexes E, F, G and H have been removed; b) a new informative Annex G “Example of signal current for a 4 mA to 20 mA PMT” has been introduced (it has been moved from IEC 62828-2:2017 to this document); c) the definitions of warm-up time, settling time and output signal have been moved from IEC 62828-4:2020 to this document; d) The definitions of “inaccuracy” and “accuracy” have been reworked; e) The clause regarding test report has been reworked.