HD 530.1 S1:1989

Controllers with analogue signals for use in industrial-process control systems - Part 1: Methods of evaluating the performance HD 530.1 S1:1989

Scope

This standard applies to pneumatic and electric industrial-process controllers using analogue continuous input and output signals which are in accordance with current international standards - It should be noted that while the tests specified herein cover controllers having such signals they can be applied in principle to controllers having different but continuous signals - These methods of evaluation may also be employed on devices which internally use digital concepts and elements provided the input and output signals are conventional analogue signals