CSA C22.2 NO. 142-M1987 (R2014) Process Control Equipment

standard by CSA Group, 12/18/1999

Full Description

Scope

1.1 This Standard applies to fixed equipment or accessories, or both, that utilizes signals to measure or control directly or indirectly an industrial process through a final control device (or devices) and is intended to be connected to supply circuits with voltages of 750 V and less, for use indoors or outdoors in nonhazardous locations in accordance with the Canadian Electrical Code, Part I.Note: Some examples of equipment covered by this Standard are analogue and digital equipment such as indicating, integrating, and recording instruments, with or without a control function, as well as transmitters, transducers, analyzers, telemetry equipment, and programmable controllers.

1.2 This Standard does not apply to research and scientific laboratory equipment or equipment covered by other CSA Standards.