Emerson NGA 2000 TO2 Section Installation, Unpacking, Electrolyte Addition, Location

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Model NGA 2000 TO2

Instruction Manual

760008-A September 2001

SECTION 2

INSTALLATION

WARNING.

Before starting to install this equip- ment, read the Safety Summary in the Preface section of this manual. Failure to follow the safety instruc- tions could result in serious injury or death.

2-1 UNPACKING

If the Trace Oxygen (TO2) Analyzer Module is received as a separate unit, carefully examine the shipping carton and contents for signs of damage. Immediately notify the shipping car- rier if the carton or contents is damaged. Re- tain the carton and packing material until all components associated with the TO2 Ana- lyzer Module are operational.

2-2 ELECTROLYTE

Figure 4-1). Be careful not to lose these screws as they have metric threads. Carefully lift out the Sensor assembly and remove from the analyzer module. Place on a flat surface and remove the black Sensor cover by unscrewing counter- clockwise.

Add distilled or deionized water to the Sensor to the maximum level indication on the Sensor reservoir. Let Sensor stand for approximately 15 minutes and check for leaks around the base of the reservoir, and at the seams and corners. If a leak is found, contact the factory be- fore proceeding. Drain the Sensor.

Fill the Sensor with one bottle of electro- lyte supplied with the analyzer module. Use the entire contents of the bottle.

NOTE

Before installation of the TO2 Analyzer Mod- ule, electrolyte must be added to the Sensor. Follow the procedure described in Section 2- 2a.

After addition of electrolyte, locate the ana- lyzer module on an appropriate mounting surface and connect the network cable to ei- ther the NETWORK 1 or NETWORK 2 con- nection on the Analyzer Module, and the NETWORK connection on the Platform net- work I/O port. (See Figure 2-1 and Figure 2-4.)

a.Electrolyte Addition

Before adding electrolyte to the Sensor, it is recommended to check the Sensor for possible leakage caused by damage in shipment. To check the Sensor for leak- age, remove the top cover of the Analyzer Module and locate and remove the 5 mounting screws which hold the Sensor Assembly (Sensor, flow meter, plumbing, inlet/outlet fittings) to the module (see

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

Reinstall the black Sensor cover and carefully reinstall the Sensor Assembly inside the Analyzer Module. Do not tilt the Sensor Assembly excessively as electrolyte may leak out.

2-3 LOCATION

(See Figure 2-2) The TO2 Analyzer Module comes standard with mounting ears for easy installation on flat, horizontal surfaces. Install the TO2 Analyzer Module in a clean, weather- proofed, vibration-free location free from ex- treme temperature variations and moisture. For best results, install the instrument near the sample stream to minimize sample trans- port time.

Operating ambient temperature is 0 °C to 45 °C (32 °F to 81 °F). Temperature change should not exceed 10 °C (18 °F) per hour.

Rosemount Analytical Inc. A Division of Emerson Process Management

Installation 2-1

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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 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 OverpressureSensor 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… Display Status… Main… Channel Basic CONTROLS, Setup and StatusPower supply voltages… Measure Back… Analyzer Channel StatusDisplay Status… Single Component DisplayMain… Channel BasicCal 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…Measurement display configuration… Measurement Display ConfigurationLinearization 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 measurement… Flow MeasurementFlow lower limit 400 ml/min Temperature measurement… Measure Status… Back… Temperature MeasurementTemperature measurement units 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 Outputs value on analyzer failure Operation modeOutput number 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 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 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 Matrix Section Replacement PartsTO2 NGA 2000 TO2 Trace Oxygen Analyzer Module 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
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