2026 INSTRUMENTATION STANDARD UPDATE
IEC updates general performance methods for industrial process measurement transmitters
IEC 62828-1:2026 updates the common methods and terminology for industrial and process measurement transmitters and now includes an example of signal current for a 4–20 mA transmitter.
Why it matters
- The 2026 edition consolidates common transmitter definitions and test-report expectations.
- The added 4–20 mA example reinforces the continued importance of analogue current signaling in process instrumentation.
Engineering implication
- Scaling math should be separated from transmitter accuracy, dynamic response and diagnostic behavior.
- Acceptance testing should use the applicable transmitter standard and project-specific performance requirements.
Professional references
These references establish the standards, technical framework or authoritative engineering context used for this page. Vendor commercial terms are not used as engineering evidence.
- IEC 62828-1:2026 Industrial and process measurement transmitters – General methods and procedures — Current IEC transmitter reference; the 2026 edition includes an example of signal current for a 4 mA to 20 mA transmitter.
- IEC 60381-1:1982 Analogue signals for process control systems – Direct current signals — IEC reference for analogue direct-current signals used in industrial-process measurement and control.
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