IEC 62828-1:2026

Overview

IEC 62828-1:2026 sets forth the general reference conditions and standardized test procedures for evaluating the measurement performance of all types of industrial and process measurement transmitters (PMTs) used in process measurement and control systems for industrial processes and machinery. This International Standard provides a unified framework to ensure consistency, reliability, and comparability of measurement results among transmitters-regardless of technology, output type (analogue or digital), or application sector. It also serves as the foundational reference for the entire IEC 62828 series, with subsequent parts delving into specific procedures for individual PMT types such as pressure, temperature, level, and flow transmitters.

The second edition of IEC 62828-1 includes significant technical updates influencing how PMTs are tested, classified, and reported upon within the industrial automation and process control sectors.

Key Topics

IEC 62828-1:2026 covers several core areas vital for manufacturers, integrators, and end-users of PMTs:

• Reference Conditions: Defines the standard environmental, electrical, and mechanical conditions under which testing should be performed to ensure reproducibility and comparability.
• Test Procedures: Outlines procedures applicable to all PMTs, including preparation, classification (type tests, routine tests, reception tests, and maintenance tests), and standardized methods for evaluating performance under varying conditions.
• Measurement Performance: Addresses key performance criteria such as accuracy, inaccuracy, linearity, drift, stability, and error analysis. Updated and consolidated definitions for terms like 'accuracy,' 'inaccuracy,' 'warm-up time,' and 'settling time' provide clarity for assessment and reporting.
• Output Types: Distinguishes between analogue transmitters (current or voltage outputs) and digital/hybrid transmitters (digital or mixed outputs), ensuring applicability regardless of signal interface.
• Reporting: Details comprehensive requirements for test reports, including documentation of test conditions, measurement data, and findings.
• Exclusions: Specifically excludes sensing devices conforming to the IEC 60947 series.

Technical Updates in 2026 Edition

• Removal of informative annexes E, F, G, and H.
• Inclusion of a new Annex G on the 4 mA to 20 mA signal range for PMTs.
• Consolidation and update of definitions regarding accuracy-related terms and output behavior.
• Revised clause structure concerning test reporting.

Applications

This standard is widely applicable across diverse industry sectors reliant on robust process measurement, such as:

• Process Industries: Oil & gas, chemical manufacturing, water treatment, pharmaceuticals, and food processing, where precise and traceable measurement and control are mission-critical.
• Machinery and Automation: Supporting machine builders and integrators in evaluating and benchmarking PMT performance for improved system design and reliability.
• Quality Assurance: Providing test laboratories and certification bodies with harmonized methods for PMT validation and documentation.
• Product Development: Assisting manufacturers in ensuring compliance and competitive differentiation by adhering to international best practices for PMT performance testing.

By offering unified procedures, IEC 62828-1 enhances efficiency and transparency in procurement, commissioning, and maintenance of industrial transmitters, facilitating global interoperability and standardization.

Related Standards

IEC 62828-1:2026 is the foundational standard in the IEC 62828 series. Related standards addressing specific transmitter types and test procedures include:

• IEC 62828-2: Procedures for pressure transmitters
• IEC 62828-3: Procedures for temperature transmitters
• IEC 62828-4: Procedures for level transmitters
• IEC 62828-5: Procedures for flow transmitters

Other relevant referenced standards:

• IEC 60068 series: Environmental test methods (temperature, humidity, vibration, shock)
• IEC 60654 series: Conditions for industrial measurement and control equipment
• IEC 61010-1: Safety requirements for electrical measurement and laboratory equipment
• IEC 61326: EMC requirements for measurement, control, and laboratory use

For effective process automation and consistent industrial measurement, adherence to IEC 62828-1:2026 is essential for ensuring global compatibility, reliability, and regulatory compliance in PMT performance assessment.