EN 61028:1993/A2:1997

Overview

EN 61028:1993/A2:1997 (also published as IEC 61028 Amendment 2) is an amendment to the international standard for electrical measuring instruments - X‑Y recorders. It sits under ICS 17.220.20 (measurement of electrical and magnetic quantities) and was prepared by IEC Technical Committee 85. The amendment records editorial and technical adjustments to the original IEC 61028 text and related tables, and it clarifies requirements for documentation, marking and safety-related entries.

Key topics and requirements

This amendment focuses on adjustments to the published standard rather than introducing a new measurement method. Notable changes recorded in the amendment include:

• Documentation: Revision to clause 8.2 (“Information in documentation”) - the amendment instructs deletion of the text that appeared in brackets, simplifying the documented requirements.
• Marking and symbols: Changes to Table IV (symbols for marking recorders and accessories), specifically deletion of six rows in Table IV C (Safety) and the associated note.
• Editorial updates: Minor pagination and reference corrections (for example, page-number changes noted in the amendment).
• Standards governance: The amendment was developed via IEC TC 85 ballot documents (FDIS 85/163/FDIS and report 85/174/RVD), indicating consensus-based technical review.

Because this document is an amendment, users should refer to the base IEC/EN 61028 standard together with A2 to obtain the full set of technical specifications (performance, accuracy, mechanical/electrical interfaces, environmental and safety requirements).

Applications

X‑Y recorders are instruments that plot one electrical quantity versus another (two-channel plotting). Typical practical applications include:

• Phase relationship and Lissajous‑type analysis in laboratories and R&D
• Visual correlation of voltage vs. current or other paired signals for diagnostic and testing tasks
• Industrial monitoring and test benches where analogue plot output is required
• Calibration and conformity testing of recording equipment

This amendment helps ensure consistent documentation, marking and safety presentation of X‑Y recorders used in these applications.

Who should use this standard

• Manufacturers and designers of X‑Y recorders and chart recorders
• Test and calibration laboratories validating recorder performance
• Product compliance and safety engineers
• Procurement and quality managers specifying recorder requirements
• Standards committees and certification bodies

Related standards

• IEC/EN 61028 (base standard for X‑Y recorders)
• Other IEC standards produced by TC 85 concerning measurement of electrical and magnetic quantities

For full technical requirements, consult the consolidated text: IEC/EN 61028 together with Amendment A2 (1997).