Process device with quiescent current diagnostics

A process device for use in a process control system includes output circuitry configured to couple to a process control loop. The output circuitry controls electrical current through the loop. Loop override circuitry is configured to override operation of the output circuitry and set the electrical...

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Bibliographische Detailangaben
1. Verfasser:	HUISENGA GARRIE D.,LONGSDORF RANDY J
Format:	Patent
Sprache:	eng
Schlagworte:	BASIC ELECTRIC ELEMENTS CLIMATE CHANGE MITIGATION TECHNOLOGIES IN THE PRODUCTION ORPROCESSING OF GOODS CONTROL OR REGULATING SYSTEMS IN GENERAL CONTROLLING CORONA DEVICES ELECTRICITY FUNCTIONAL ELEMENTS OF SUCH SYSTEMS GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS GENERATING IONS TO BE INTRODUCED INTO NON-ENCLOSED GASES MEASURING MEASURING ELECTRIC VARIABLES MEASURING MAGNETIC VARIABLES MONITORING OR TESTING ARRANGEMENTS FOR SUCH SYSTEMS ORELEMENTS OVERVOLTAGE ARRESTERS USING SPARK GAPS PHYSICS REGULATING SIGNALLING SPARK GAPS SPARKING PLUGS TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINSTCLIMATE CHANGE TESTING TRANSMISSION SYSTEMS FOR MEASURED VALUES, CONTROL OR SIMILARSIGNALS
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Beschreibung
Zusammenfassung:	A process device for use in a process control system includes output circuitry configured to couple to a process control loop. The output circuitry controls electrical current through the loop. Loop override circuitry is configured to override operation of the output circuitry and set the electrical current in the loop to a desired level.