Emerson NGA 2000 TO2 instruction manual Operation, Displays & Operating Keys

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Model NGA 2000 TO2

Instruction Manual

760008-A September 2001

SECTION 3 OPERATION

3-1 OVERVIEW

Once the TO2 has been correctly assembled and installed in accordance with the instruc- tions in Section 2, the analyzer is ready for operation.

Before operating the system, verify that the Leak Checks have been performed in accor- dance with Section 2-5a.

For the remainder of this section, Analyzer Module interconnection with a Platform or some interfacing component is assumed. Dis- play and Keypad information refers to that which the user can expect to see and do with regard to the Front Panel of the Platform.

3-2 DISPLAYS & OPERATING KEYS

The LCD screen shows all measurement val- ues of the Analyzer, status values and all user menu instructions. Operation is performed with five function keys, four arrow (cursor) keys and the enter key. The function of each key varies depending on the installed Ana- lyzer module, any auxiliary modules installed, and the individual menu displayed.

In case of power failure, all user defined spe- cific module parameters are saved by a bat- tery powered memory.

The Function Keys, also called softkeys, are assigned values depending on the menu or screen being displayed. The legend is dis- played above the keys.

The Enter Key is used to confirm a previously entered variable value, to start a selected function or to go to a submenu selected at a menu line as opposed to the Function Keys. As an alternate to using the Enter Key to start a function, the → key can be used.

The Cursor Up/Down Keys (↑ or ↓) are used to move up or down the lines within a menu or to increment and decrement number vari- ables.

The Cursor Left/Right Keys (← or →) are used to move backwards or forwards between the pages of a menu or to select numeric dig- its for adjustment.

		LCD Display			Cursor Keys
TO2
37.50				ppm O 2
0.00		Range: 3			50.00
Electrolyte level:		OK
Temp current:		263 uA	0.0		100.0
Range:		3
Sensor Current:		0.0500 uA	0.0000		100.0000
Display	Status…	Main…		Channel	BasicCal
F1	F2	F3		F4	F5
ROSEMOUNT ANALYTICAL					NGA 2000
	Function Keys				Enter Key

Figure 3-1. Platform Front Panel

Rosemount Analytical Inc. A Division of Emerson Process Management

Operation 3-1

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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 SoftkeysFeatures Section Description and SpecificationsOverview Typical ApplicationsTrace Oxygen Detector Coulometric Principle Trace Oxygen Analyzer Module Top View General SPECIFICATIONS1Sample PhysicalGas Connections Model NGA 2000 TO2 Unpacking Section InstallationElectrolyte Electrolyte AdditionGAS Connections GasesGAS Overpressure Sample FlowSensor Damage Leak TestElectrical Connections Electrical Shock Hazard Analyzer Module Interconnection with Instrument Platform Outline and Mounting Dimensions Back Panel Connections Displays & Operating Keys OperationMenu Lines & Softkey Functionality Analyzer basic controls calibration & setup…Measure Status… Channel Lock… MFG Data Entering & Changing Variables Signal on mini-bargraphMeasure Back… Ppm O2 Measure Mode DisplayDisplay Status… Main… Channel BasicCal Module Manufacturing Data Displays Startup & Initialization LCDReset AbortInitiate quick start Quick StartMeasure Status… Back… Power supply voltages… Measure Back… Basic CONTROLS, Setup and StatusAnalyzer Channel Status Display Status… Main… ChannelDisplay Status… Single Component DisplayMain… Channel BasicCal Multi Component Display Select Status… Tags Off LCDResetRange number Basic Controls and SetupOperation Status Range numberBrightness and Contrast Display ControlsDisplay controls… Brightness 70 %Analyzer and I/O, expert controls & setup… Expert Controls and SetupAnalyzer module controls… Measure Channel Back…Gas Scale Factor Calibration ProcedureAir background gas concentration Gas scale factor…Span gas 90.0 ppm Measure Status… Back… Span CalibrationAlarms… AlarmsConcentration alarm setup… Measure Back… ClrAlm Alarm generation isReRanges… RangesBegin / end of ranges… Range Begin PpmMeasurement display configuration… Measurement Display ConfigurationLinearization Gas measurement units Concentration MeasurementConcentration measurement… Gas concentration unitsSensor model Temperature compensation at span gasClamp low PVA to Ppm to mg/Nm3 conversion factorFlow measurement… Flow MeasurementFlow lower limit 400 ml/min Temperature measurement… Measure Status… Back… Temperature MeasurementTemperature measurement units System & network I/O module controls… System & Network I/O Module CON Trols Setup37.50 ppm System SIO module…System SIO Analog output setup…Choose signal Analog Output SetupSelect analog output number Choose the analyzer moduleHold output during calibration Signal value for 0% outputHold output during calibration Outputs value on analyzer failure Operation modeOutput number Type of installed serial inter- face Analog Output Updates Per SecondOutput #1 Yes Baud rate 19200Invert signal Relay Outputs SetupCommunication protocol Choose source moduleSystem DIO Choose signal…Function control Input numberSystem Configuration and DIAG- Nostics Load/Save Module Configura- tion Diagnostic MenusAnalyzer Module Diagnostics Security Codes Date and TimeSystem reset Measure Back… System ResetEntering a level locked by security code Model NGA 2000 TO2 Overview Electrical Shock Hazard Section Maintenance and ServiceSensor Caustic Liquid Refilling Sensor Sensor AssemblySensor Replacement Electrolyte ReplacementSensor Lleak Check Linearization Analyzer and I/O expert controls & setup…Do not tilt Sensor excessively as elec- trolyte may leak Time & DateLinearization… Linearization temperature values…0000 ppm Linearization raw values sensor current…Electronic Components Flow Sensor ReplacementFuses Printed Circuit BoardsTroubleshooting Section TroubleshootingFailure to purge down to ppm levels Erratic and very insensitive readingsModel NGA 2000 TO2 Matrix Section Replacement PartsTO2 NGA 2000 TO2 Trace Oxygen Analyzer Module Replacement Parts Section Return of Material Customer ServiceReturn of Material TrainingModel NGA 2000 TO2 Section Index Model NGA 2000 TO2 Product ELECTROLYTE1 Precautions to be taken in handling Emergency & first aid proceduresOther precautions Threshold limit value Routes of entryRosemount Warranty Asia Pacific EUROPE, Middle EAST, Africa Latin America