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DKE German Commission for Electrical, Electronic & Information Technologies of DIN and VDE

DIN EN 60688 [Withdrawn] references following documents:

Document number Edition Title
DIN IEC 60381-1 1985-11 Analogue signals for process control systems; direct current signals; identical with IEC 60381-1, edition 1982 More 
IEC 60381-1 1982 Analogue signals for process control systems. Part 1 : Direct current signals More