IEC 62828-3:2018

Overview

IEC 62828-3:2018 is an international standard published by the International Electrotechnical Commission (IEC) that specifies reference conditions and test procedures for temperature transmitters used in industrial processes and machinery control systems. This standard forms Part 3 of the IEC 62828 series, which defines protocols for the testing and verification of industrial and process measurement transmitters (PMTs).

The focus of IEC 62828-3:2018 is on temperature transmitters, either as standalone devices separated from the temperature sensing element (such as RTDs or thermocouples) or fully integrated units combining sensor and transmitter. It complements the general procedures given in IEC 62828-1 and supersedes previous IEC standards including IEC 60770 and parts of IEC 61298.

Key Topics

• Scope and Applicability:
  Applies to temperature transmitters in industrial measurement and control systems. For transmitters separated from the sensing element, the standard covers only the transmitter. Fully integrated sensor-transmitter devices are covered in their entirety. Sensing elements themselves and radiation thermometers are excluded.

• Reference Test Conditions:
  Defines the specific environmental and operating conditions needed to conduct accurate and repeatable tests.

• Test Procedures:
  Details procedures for determining performance attributes such as accuracy verification, including routine, acceptance, and type tests essential for quality assurance.

• Performance Parameters:
  Covers test methods to evaluate total probable error and other key performance metrics of temperature transmitters.

• Documentation and Reporting:
  Specifies the technical documentation requirements including accurate recording and presentation of test results and measured errors.

• Device Configurations:
  Addresses various device configurations, including those with separated sensing elements (e.g., Resistance Temperature Detectors - RTDs, Thermocouples - TCs) and fully integrated transmitter sensors.

Applications

IEC 62828-3:2018 ensures uniform testing standards for temperature transmitters widely used in:

• Industrial Automation and Process Control:
  Monitoring and controlling temperature in chemical, petrochemical, pharmaceutical, food and beverage, and other process industries.

• Machinery Control Systems:
  Temperature measurement for controlling equipment in power plants, manufacturing lines, and heavy machinery.

• Quality and Safety Assurance:
  Verifying sensor and transmitter accuracy supports compliance with regulatory requirements and optimizes plant operations.

• Product Development and Manufacturing:
  Assists manufacturers in systematically testing transmitters to meet international standards before market release.

By following IEC 62828-3, manufacturers, users, and testing labs can achieve reliable, consistent, and internationally recognized verification of temperature transmitter performance.

Related Standards

IEC 62828-3 is part of a comprehensive series on industrial and process measurement transmitters, including:

• IEC 62828-1: General procedures for all types of industrial and process measurement transmitters.
• IEC 62828-2: Specific procedures for pressure transmitters.
• IEC 62828-4: Specific procedures for level transmitters.
• IEC 62828-5: Specific procedures for flow transmitters.

This new series replaces the older IEC 60770 series and will lead to revision of IEC 61298 by removing process measurement transmitter coverage.

For complete and standardized testing protocols, operators and manufacturers should consult the entire IEC 62828 series relevant to their device type.

By adhering to IEC 62828-3:2018, stakeholders gain access to reliable test methods and standardized conditions that promote product quality, interoperability, and compliance in industrial temperature measurement systems worldwide.