Emerson NGA2000 TO2 Alarm Indication, Description Type, Trace Oxygen Analyzer Module Alarms

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Model NGA2000 TO2

Instruction Manual

748374-F March 2003

3-8 ALARM INDICATION

NGA analyzer modules continuously monitor a number of internal parameters. It is possible to make the analyzer generate certain kinds of alarm indications if these parameters' values exceed or reduce below specified levels. The general alarm variable will have its value changed if an alarm occurs. See the NGA Ref- erence manual for further details.

DESCRIPTION	TYPE
Low Electrolyte	WARNING
Low Sample Flow	WARNING
Sleep Mode	WARNING
Low Sensor Temperature	WARNING
High Sensor Temperature	WARNING
Software Error	FAILURE

Table 3-1. Trace Oxygen Analyzer Module Alarms

Rosemount Analytical Inc. A Division of Emerson Process Management

Startup and Operation

3-5

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Contents Model NGA2000 TO2 Essential Instructions Model NGA2000 TO2 Table of ContentsMaintenance and Troubleshooting Material Safety Data SheetList of Tables List of IllustrationsModel NGA2000 TO2 Definitions Preface Intended USE StatementAuthorized Personnel Safety SummaryModel NGA2000 TO2 Model NGA2000 TO2 Compliances DocumentationGlossary of Terms Typical Applications Section Description and SpecificationsFeatures OverviewTrace Oxygen Detector Technology Trace Oxygen Analyzer Module Top View Physical SpecificationsGeneral SampleLocation Section InstallationAssembly UnpackingPressure Calibration GasesConnections Trace Oxygen Analyzer Outline and Mounting Dimensions Sample Flow GAS OverpressureElectrical Connections Trace Oxygen Analyzer Front PanelModel NGA2000 TO2 Run Mode Display Section Startup and OperationDisplays Basic Controls Menu Calibration Startup ProcedureQuick Start Feature GAS Scale Factor GSFRoutine Operation Alarm Indication Trace Oxygen Analyzer Module AlarmsDescription Type Model NGA2000 TO2 Section Maintenance and Troubleshooting Overview Qualified PersonnelRefilling Sensor Fuses Electrolyte ReplacementSensor Replacement Water Addition To add waterSensor Damage Flow Sensor ReplacementTroubleshooting Printed Circuit BoardsTO2 analyzer gives erratic and very in- sensitive readings Matrix Section Replacement PartsConfiguration Identifier Replacement PartsModel NGA2000 TO2 Return of Material Customer ServiceRosemount Analytical Inc Customer Service Center Section Return of MaterialModel NGA2000 TO2 Section Appendix A. Menu Structure NGA TO2 Menu Structure IntroductionNGA TO2 Analyzer Module Menus Model NGA2000 TO2 Model NGA2000 TO2 Model NGA2000 TO2 Model NGA2000 TO2 Model NGA2000 TO2 Section Appendix B. User Interface Help Menu ItemsPath Model NGA2000 TO2 Section Index Model NGA2000 TO2 Warranty Emerson Process Management Rosemount Analytical Inc