ISA 82.03

This standard applies to electrical, electronic (analog/digital) and electromechanical process measurement and control equipment which:

1) measures and controls directly or indirectly an industrial process through a final control element (or elements)

2) is intended to be connected to supply circuits which do not exceed 250 volts rms, single phase, or dc

3) is rated for use in either indoor, outdoor or sheltered locations

This equipment includes but is not necessarily restricted to:

• indicating, integrating or recording equipment with or without a control function

• transmitters

• transducers

• analyzers

• supervisory or telemetry equipment

• accessories used with any of the above equipment