Emerson NGA 2000 TO2 Linearization, Do not tilt Sensor excessively as elec- trolyte may leak

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Instruction Manual

760008-A September 2001

Model NGA 2000 TO2

possible leakage caused by damage in shipment.

1.If not already removed from the analyzer, remove the top cover of the analyzer module and locate and remove the five mounting screws which hold the Sensor Assembly (Sensor, flowmeter, plumbing) to the module. Care should be taken not to lose the screws as they have metric threads.

2.Carefully lift out the Sensor Assem- bly. Place on a flat surface and re- move the black Sensor cover by unscrewing clockwise.

3.Refill the the Sensor per Section 4- 2a, steps 2 through 5.

4.Allow the Sensor to stand for ap- proximately 15 minutes, then check for leaks around the base of the reservoir, at seams and corners.

5.If a leak is found, drain the Sensor. Contact the factory before proceed- ing.

6.If no leaks are detected drain the Sensor, refill with one bottle of elec- trolyte. Use the entire contents of the bottle.

NOTE

Do not add water. The volumn and concentration of the bottled electrolyte is pre-measured.

4-3 LINEARIZATION

After installation of a new Sensor, it will be necessary to load the new calibration data supplied with the Sensor.

NOTE

It is not necessary to load lineariza- tion data on a new analyzer which has been filled with electrolyte. The data is pre-loaded at the factory.

The data supplied with the new Sensor and must be entered exactly as shown the the Se- nosr data sheet.

From the Main Menu

TO2	37.50 ppm
	-- Main Menu --

Analyzer basic controls (calibration) & setup…

Analyzer and I/O expert controls & setup…

System configuration and diagnostics…

Display controls…

Time & Date:					14:01:45 03 November 2000
System tag:							Fisher-Rosemount
Measure			Status…		Channel		Lock…		MFG Data

Slect Analyzer and I/O expert controls & setup…

TO2

37.50 ppm

-- Analyzer and I/O Expert Controls and Setup --

Analyzer module controls…

System & network I/O module controls…

Analyzer module setup…

System & network I/O module setup…

(Note: Controls & setup are identical for MLT/FID)

7.Reinstall the black Sensor cover and carefully install the Sensor into the Analyzer Module.

NOTE

Do not tilt Sensor excessively as elec- trolyte may leak.

Measure

Channel

Back…

Select Analyzer module controls… or Ana- lyzer module setup…

4-4 Maintenance and Service

Rosemount Analytical Inc. A Division of Emerson Process Management

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Contents Model NGA 2000 TO2 Essential Instructions Table of Contents Model NGA 2000 TO2System & Network I/O Module Controls Setup Material Safety Data SheetList of Illustrations Analyzer Module Interconnection with Instrument PlatformModel NGA 2000 TO2 Preface Intended USE Statement DefinitionsSafety Summary Model NGA 2000 TO2 Documentation CompliancesGlossary of Terms Softkeys SystemSection Description and Specifications FeaturesOverview Typical ApplicationsTrace Oxygen Detector Coulometric Principle Trace Oxygen Analyzer Module Top View SPECIFICATIONS1 GeneralSample PhysicalGas Connections Model NGA 2000 TO2 Section Installation UnpackingElectrolyte Electrolyte AdditionGases GAS ConnectionsGAS Overpressure Sample FlowSensor Damage Leak TestElectrical Connections Electrical Shock Hazard Analyzer Module Interconnection with Instrument Platform Outline and Mounting Dimensions Back Panel Connections Operation Displays & Operating KeysMenu 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 LCDReset Abort Startup & InitializationInitiate quick start Quick StartMeasure Status… Back… Basic CONTROLS, Setup and Status Power supply voltages… Measure Back…Analyzer Channel Status Display Status… Main… ChannelDisplay Status… Single Component DisplayMain… Channel BasicCal Select Status… Tags Off LCDReset Multi Component DisplayBasic Controls and Setup Range numberOperation Status Range numberDisplay Controls Brightness and ContrastDisplay controls… Brightness 70 %Expert Controls and Setup Analyzer and I/O, expert controls & setup…Analyzer module controls… Measure Channel Back…Calibration Procedure Gas Scale FactorGas scale factor… Air background gas concentrationSpan Calibration Span gas 90.0 ppm Measure Status… Back…Alarms Alarms…Concentration alarm setup… Measure Back… ClrAlm Alarm generation isReRanges Ranges…Begin / end of ranges… Range Begin PpmMeasurement display configuration… Measurement Display ConfigurationLinearization Concentration Measurement Gas measurement unitsConcentration measurement… Gas concentration unitsTemperature compensation at span gas Sensor modelClamp 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 CON Trols Setup System & network I/O module controls…37.50 ppm System SIO module…Analog output setup… System SIOAnalog Output Setup Choose signalSelect 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 Analog Output Updates Per Second Type of installed serial inter- faceOutput #1 Yes Baud rate 19200Relay Outputs Setup Invert signalCommunication protocol Choose source moduleChoose signal… System DIOFunction control Input numberSystem Configuration and DIAG- Nostics Load/Save Module Configura- tion Diagnostic MenusAnalyzer Module Diagnostics Date and Time Security CodesSystem 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 Sensor Assembly Refilling SensorSensor Replacement Electrolyte ReplacementSensor Lleak Check Analyzer and I/O expert controls & setup… LinearizationDo not tilt Sensor excessively as elec- trolyte may leak Time & DateLinearization temperature values… Linearization…0000 ppm Linearization raw values sensor current…Flow Sensor Replacement Electronic ComponentsFuses Printed Circuit BoardsSection Troubleshooting 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 Customer Service Section Return of MaterialReturn of Material TrainingModel NGA 2000 TO2 Section Index Model NGA 2000 TO2 Product ELECTROLYTE1 Emergency & first aid procedures Precautions to be taken in handlingOther precautions Threshold limit value Routes of entryRosemount Warranty Asia Pacific EUROPE, Middle EAST, Africa Latin America