Emerson instruction manual Model NGA 2000 TO2

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Model NGA 2000 TO2

Instruction Manual

760008-A September 2001

GENERAL PRECAUTIONS FOR HANDLING AND STORING HIGH

PRESSURE GAS CYLINDERS

Edited from selected paragraphs of the Compressed Gas Association's "Handbook of Compressed Gases" published in 1981

Compressed Gas Association

1235 Jefferson Davis Highway Arlington, Virginia 22202 Used by Permission

1.Never drop cylinders or permit them to strike each other violently.

2.Cylinders may be stored in the open, but in such cases, should be protected against extremes of weather and, to prevent rusting, from the dampness of the ground. Cylinders should be stored in the shade when located in areas where extreme temperatures are prevalent.

3.The valve protection cap should be left on each cylinder until it has been secured against a wall or bench, or placed in a cylinder stand, and is ready to be used.

4.Avoid dragging, rolling, or sliding cylinders, even for a short distance; they should be moved by using a suitable hand-truck.

5.Never tamper with safety devices in valves or cylinders.

6.Do not store full and empty cylinders together. Serious suckback can occur when an empty cylinder is attached to a pressurized system.

7.No part of cylinder should be subjected to a temperature higher than 125°F (52°C). A flame should never be permitted to come in contact with any part of a compressed gas cylinder.

8.Do not place cylinders where they may become part of an electric circuit. When electric arc welding, precautions must be taken to prevent striking an arc against the cylinder.

Rosemount Analytical Inc. A Division of Emerson Process Management

Preface P-3

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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 FlowLeak Test Sensor DamageElectrical Connections Electrical Shock Hazard Analyzer Module Interconnection with Instrument Platform Outline and Mounting Dimensions Back Panel Connections Displays & Operating Keys OperationAnalyzer basic controls calibration & setup… Menu Lines & Softkey FunctionalityMeasure Status… Channel Lock… MFG Data Signal on mini-bargraph Entering & Changing VariablesMeasure Back… Measure Mode Display Ppm O2Display Status… Main… Channel BasicCal Module Manufacturing Data Displays Startup & Initialization LCDReset AbortQuick Start Initiate quick startMeasure Status… Back… Power supply voltages… Measure Back… Basic CONTROLS, Setup and StatusAnalyzer Channel Status Display Status… Main… ChannelSingle Component Display Display Status…Main… 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 configuration…Linearization 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 measurement…Flow lower limit 400 ml/min Temperature Measurement Temperature measurement… Measure Status… Back…Temperature 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 moduleSignal value for 0% output Hold output during calibrationHold output during calibration Operation mode Outputs value on analyzer failureOutput 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 Diagnostic Menus Load/Save Module Configura- tionAnalyzer Module Diagnostics Security Codes Date and TimeSystem Reset System reset Measure Back…Entering a level locked by security code Model NGA 2000 TO2 Section Maintenance and Service Overview Electrical Shock HazardSensor Caustic Liquid Refilling Sensor Sensor AssemblyElectrolyte Replacement Sensor 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 Section Replacement Parts MatrixTO2 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