: Details tests for the effects of external influence quantities (e.g., ambient temperature, vibration).
The most impactful change is the explicit removal of PMTs from the scope. This means that (Reference conditions and test methods for industrial and process measurement transmitters) now covers what Part 2 previously addressed for these devices.
The new edition applies to both process instrumentation. However, a significant exclusion remains: Process Measurement Transmitters (PMT) are now primarily covered under the IEC 62828 series , meaning engineers must cross-reference these standards depending on the specific hardware. 2. Key Testing Procedures
The standard updates how labs measure directional errors. tracks the output variance when approaching a specific target value from opposite directions (upscale vs. downscale). The Dead Band test isolates the exact range within which an input change fails to trigger a measurable response in the output. Metrology Metrics: Accuracy and Non-Linearity iec 612982 new
The lag or difference in output when an input is approached from opposite directions.
Refined procedures for assessing frequency and step response , including specific measurements for dead-time and rise-time characteristics.
: Previously, the 61298 series was the go-to for evaluating almost all process control performance. Now, PMTs are standardized separately under the IEC 62828 series The Impact : Details tests for the effects of external
Always check the for the latest “Edition” and “Publication date.” The current valid version is still largely based on the 2008 technical content.
Currently available for review at sites like iTeh Standards. Final Approval: Expected by May 22, 2026 . Full Publication: Scheduled for August 12, 2026 .
(IEC 61298-2:2026) is currently in its final drafting stages and scheduled for official release around June 2026. The Evolution of IEC 61298-2 The new edition applies to both process instrumentation
: Calculating the specific finite zone where input adjustments result in zero output variations.
Tests must run across multiple upscale and downscale measurement cycles.
The standard is undergoing a major transition with the development of Edition 3.0 . Managed by Technical Committee TC 65/SC 65B, the updated framework governs the performance evaluation of process measurement and control devices under reference conditions. The new draft standard ( prEN IEC 61298-2:2024 ) revises the older 2008 version. It bridges the gap between classic analog instrumentation and modern digital control architectures.