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Emerson NGA 2000 TO2 Flow Measurement, Flow measurement…, Flow lower limit 400 ml/min

Models: NGA 2000 TO2

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Instruction Manual

760008-A September 2001

Model NGA 2000 TO2

g.Flow Measurement

Sample flow should be maintained within a range suitable for the desired accuracy. See Effect of Flow in Section 1-5a.

Main Menu

↓

Analyzer and I/O, expert controls and setup…

TO2

37.50 ppm

-- Analyzer Module Setup and Controls --

Calibration…

Alarms…

Ranges…

Linearization…

Measurement display configuration…

Concentration measurement…

Flow measurement…

Temperature measurement…

Measure

Status…

Back…

TO2	37.50 ppm
	-- Flow Measurement --

Flow lower limit:	400 ml/min
Flow upper limit:	1500 ml/min

Set the upper and lower alarm limits for sample flow as desired.

The actual flow rate displays below the line.

Sample flow:

956 ml/min

Measure

Back…

Figure 3-22. Flow Measurement

3-22 Operation

Rosemount Analytical Inc. A Division of Emerson Process Management

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Emerson NGA 2000 TO2 instruction manual Flow Measurement, Flow measurement…, Flow lower limit 400 ml/min

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 SystemOverview Section Description and SpecificationsFeatures Typical ApplicationsTrace Oxygen Detector Coulometric Principle Trace Oxygen Analyzer Module Top View Sample SPECIFICATIONS1General PhysicalGas Connections Model NGA 2000 TO2 Electrolyte Section InstallationUnpacking Electrolyte AdditionGAS Overpressure GasesGAS Connections 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… Analyzer Channel Status Basic CONTROLS, Setup and StatusPower supply voltages… Measure Back… Display Status… Main… ChannelDisplay Status… Single Component DisplayMain… Channel BasicCal Select Status… Tags Off LCDReset Multi Component DisplayOperation Status Basic Controls and SetupRange number Range numberDisplay controls… Display ControlsBrightness and Contrast Brightness 70 %Analyzer module controls… Expert Controls and SetupAnalyzer and I/O, expert controls & setup… Measure Channel Back…Calibration Procedure Gas Scale FactorGas scale factor… Air background gas concentrationSpan Calibration Span gas 90.0 ppm Measure Status… Back…Concentration alarm setup… Measure Back… ClrAlm AlarmsAlarms… Alarm generation isReBegin / end of ranges… RangesRanges… Range Begin PpmMeasurement display configuration… Measurement Display ConfigurationLinearization Concentration measurement… Concentration MeasurementGas measurement units Gas concentration unitsClamp low PVA to Temperature compensation at span gasSensor model Ppm to mg/Nm3 conversion factorFlow measurement… Flow MeasurementFlow lower limit 400 ml/min Temperature measurement… Measure Status… Back… Temperature MeasurementTemperature measurement units 37.50 ppm System & Network I/O Module CON Trols SetupSystem & network I/O module controls… System SIO module…Analog output setup… System SIOSelect analog output number Analog Output SetupChoose signal Choose the analyzer moduleHold output during calibration Signal value for 0% outputHold output during calibration Outputs value on analyzer failure Operation modeOutput number Output #1 Yes Analog Output Updates Per SecondType of installed serial inter- face Baud rate 19200Communication protocol Relay Outputs SetupInvert signal Choose source moduleFunction control Choose signal…System DIO 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 Do not tilt Sensor excessively as elec- trolyte may leak Analyzer and I/O expert controls & setup…Linearization Time & Date0000 ppm Linearization temperature values…Linearization… Linearization raw values sensor current…Fuses Flow Sensor ReplacementElectronic Components Printed Circuit BoardsFailure to purge down to ppm levels Section TroubleshootingTroubleshooting Erratic and very insensitive readingsModel NGA 2000 TO2 Matrix Section Replacement PartsTO2 NGA 2000 TO2 Trace Oxygen Analyzer Module Replacement Parts Return of Material Customer ServiceSection Return of Material TrainingModel NGA 2000 TO2 Section Index Model NGA 2000 TO2 Product ELECTROLYTE1 Other precautions Emergency & first aid proceduresPrecautions to be taken in handling Threshold limit value Routes of entryRosemount Warranty Asia Pacific EUROPE, Middle EAST, Africa Latin America

Model NGA 2000 TO2

g.Flow Measurement

TO2

Flow measurement…

Measure

TO2

Flow lower limit:

400 ml/min

Measure

Figure 3-22. Flow Measurement