Emerson NGA 2000 TO2 instruction manual Entering a level locked by security code, System Reset

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Model NGA 2000 TO2

Instruction Manual

760008-A September 2001

Entering a level locked by security code

For example, return to the Main Menu by pressing the F4 key twice.

Attempt to enter an enabled level by choosing the menu line. A new menu will appear requesting entry of the security code. Enter the correct code using the correct sequence of function keys. The asterisk (*) symbol will appear for each entry.

If the code is incorrect, the message “Ready” will appear in the line and access to the locked level is prevented. If the code is correct, the display will change to the locked level after the last digit of the correct code is entered.

NOTE

System Reset

Resets the analyzer to the initializing mode which is the same as switching the power off and then on.

TO2	37.50 ppm
	-- System Reset --

Are you sure???

System reset!

Measure

Back…

Once a locked security level has been entered, it will remain unlocked even after exiting to a different security level. To protect the level, press the F4 (Lock..) key in the Main Menu after re- turning from the locked level.

Rosemount Analytical Inc. A Division of Emerson Process Management

Operation 3-35

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Contents Model NGA 2000 TO2 Essential Instructions Model NGA 2000 TO2 Table of ContentsMaterial Safety Data Sheet System & Network I/O Module Controls SetupAnalyzer Module Interconnection with Instrument Platform List of IllustrationsModel NGA 2000 TO2 Definitions Preface Intended USE StatementSafety Summary Model NGA 2000 TO2 Compliances DocumentationGlossary of Terms System SoftkeysTypical Applications Section Description and SpecificationsFeatures OverviewTrace Oxygen Detector Coulometric Principle Trace Oxygen Analyzer Module Top View Physical SPECIFICATIONS1General SampleGas Connections Model NGA 2000 TO2 Electrolyte Addition Section InstallationUnpacking ElectrolyteSample Flow GasesGAS Connections GAS OverpressureElectrical Connections Electrical Shock Hazard Leak TestSensor Damage Analyzer Module Interconnection with Instrument Platform Outline and Mounting Dimensions Back Panel Connections Displays & Operating Keys OperationMeasure Status… Channel Lock… MFG Data Analyzer basic controls calibration & setup…Menu Lines & Softkey Functionality Measure Back… Signal on mini-bargraphEntering & Changing Variables Display Status… Main… Channel BasicCal Measure Mode DisplayPpm O2 Module Manufacturing Data Displays Startup & Initialization LCDReset AbortMeasure Status… Back… Quick StartInitiate quick start Display Status… Main… Channel Basic CONTROLS, Setup and StatusPower supply voltages… Measure Back… Analyzer Channel StatusMain… Channel BasicCal Single Component DisplayDisplay Status… Multi Component Display Select Status… Tags Off LCDResetRange number Basic Controls and SetupRange number Operation StatusBrightness 70 % Display ControlsBrightness and Contrast Display controls…Measure Channel Back… Expert Controls and SetupAnalyzer and I/O, expert controls & setup… Analyzer module controls…Gas Scale Factor Calibration ProcedureAir background gas concentration Gas scale factor…Span gas 90.0 ppm Measure Status… Back… Span CalibrationAlarm generation isRe AlarmsAlarms… Concentration alarm setup… Measure Back… ClrAlmRange Begin Ppm RangesRanges… Begin / end of ranges…Linearization Measurement Display ConfigurationMeasurement display configuration… Gas concentration units Concentration MeasurementGas measurement units Concentration measurement…Ppm to mg/Nm3 conversion factor Temperature compensation at span gasSensor model Clamp low PVA toFlow lower limit 400 ml/min Flow MeasurementFlow measurement… Temperature measurement units Temperature MeasurementTemperature measurement… Measure Status… Back… System SIO module… System & Network I/O Module CON Trols SetupSystem & network I/O module controls… 37.50 ppmSystem SIO Analog output setup…Choose the analyzer module Analog Output SetupChoose signal Select analog output numberHold output during calibration Signal value for 0% outputHold output during calibration Output number Operation modeOutputs value on analyzer failure Baud rate 19200 Analog Output Updates Per SecondType of installed serial inter- face Output #1 YesChoose source module Relay Outputs SetupInvert signal Communication protocolInput number Choose signal…System DIO Function controlSystem Configuration and DIAG- Nostics Analyzer Module Diagnostics Diagnostic MenusLoad/Save Module Configura- tion Security Codes Date and TimeEntering a level locked by security code System ResetSystem reset Measure Back… Model NGA 2000 TO2 Sensor Caustic Liquid Section Maintenance and ServiceOverview Electrical Shock Hazard Refilling Sensor Sensor AssemblySensor Lleak Check Electrolyte ReplacementSensor Replacement Time & Date Analyzer and I/O expert controls & setup…Linearization Do not tilt Sensor excessively as elec- trolyte may leakLinearization raw values sensor current… Linearization temperature values…Linearization… 0000 ppmPrinted Circuit Boards Flow Sensor ReplacementElectronic Components FusesErratic and very insensitive readings Section TroubleshootingTroubleshooting Failure to purge down to ppm levelsModel NGA 2000 TO2 TO2 NGA 2000 TO2 Trace Oxygen Analyzer Module Section Replacement PartsMatrix Replacement Parts Training Customer ServiceSection Return of Material Return of MaterialModel NGA 2000 TO2 Section Index Model NGA 2000 TO2 Product ELECTROLYTE1 Threshold limit value Routes of entry Emergency & first aid proceduresPrecautions to be taken in handling Other precautionsRosemount Warranty Asia Pacific EUROPE, Middle EAST, Africa Latin America