Applies to transducers which convert an electrical quantity such as voltage, power, frequency impedance, into a related electrical output. It classifies transducers in terms of their permissible errors and gives reference standards and definitions, classification, and factors which may affect accuracy. Marking, mechanical and electrical requirements and tests are also included. Appendices cover notes on test categories and test acceptance, and symbols for marking transducers.
Content history
IEC 688-1
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