Process Instrumentation
Cross-references re-pointed to the standard that now owns each subject, after neighboring standards were remade
Showing changes from Rev 4
to Rev 5
in Process Instrumentation.
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title: Process Instrumentation
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When to use: Field-mounted measurement instruments and transmitters for the core process variables pressure, level, and temperature, and for general-purpose process measurement, on industrial, process, and water/wastewater (WTP/WWTP) projects. Covers gauge, absolute, and differential pressure transmitters; hydrostatic, radar (non-contact and guided-wave), ultrasonic, and float level instruments; RTD and thermocouple temperature elements with thermowells and transmitters; signal and output types (4-20 mA with HART, and digital fieldbus options); accuracy and turndown; wetted materials and process connections; ambient and hazardous-area (Class/Division and Zone, intrinsic safety) ratings; local indication; and instrument tagging and loop identification per ANSI/ISA-5.1. Reference loop integration to [[sync/control-systems-integration]] and signal wiring to [[sync/conductors-and-cables]].
− Not intended for: Flow rate and totalized flow measurement (magnetic, Coriolis, vortex, differential-pressure flow, ultrasonic flow) — see [[sync/flow-measurement]]. Water-quality and analytical measurement (pH, ORP, conductivity, dissolved oxygen, turbidity, chlorine, gas detection) — see [[sync/analytical-instrumentation]]. Final control elements and the devices that move the process (control valves, actuators, positioners) — see [[sync/control-valves-and-actuators]]. The controller and logic solver that receives these signals ([[sync/programmable-logic-controllers]]); the operator interface and supervisory layer ([[sync/scada-and-hmi-systems]]); the control panels that house I/O and power supplies ([[sync/industrial-control-panels]]); and the field network infrastructure ([[sync/process-control-networks]]).
+ Not intended for: Flow rate and totalized flow measurement (magnetic, Coriolis, vortex, differential-pressure flow, ultrasonic flow) — see [[sync/flow-measurement]]. Water-quality and analytical measurement (pH, ORP, conductivity, dissolved oxygen, turbidity, chlorine) — see [[sync/analytical-instrumentation]]. Ambient gas detection — see [[sync/gas-detection-systems]]. Final control elements and the devices that move the process (control valves, actuators, positioners) — see [[sync/control-valves-and-actuators]]. The controller and logic solver that receives these signals ([[sync/programmable-logic-controllers]]); the operator interface and supervisory layer ([[sync/scada-and-hmi-systems]]); the control panels that house I/O and power supplies ([[sync/industrial-control-panels]]); and the field network infrastructure ([[sync/process-control-networks]]).
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### The spare-parts list with manufacturer part numbers shall be included in the closeout documentation.