This part of IEC 61003 is applicable to pneumatic and electric industrial-process instruments or control device using measured values that are continuous signals either a mechanical (position, force, etc.) or a standard electric signal. These instruments or process control systems modules may be used as controllers or as switches for alarm and other similar purposes. Electronic product safety issues may impact only a few products covered by this document. Consequently this document does not address such safety issues. This standard is intended to specify uniform terminologies and testing methods for performance evaluation of industrial-process instruments or process control systems modules with analogue measured values and two- or multi-position outputs. Considerations other than the performances are listed in Clause 10.