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Teledyne gfc 7000ta operation manual Teledyne Analytical Instruments 231

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Troubleshooting

Model GFC7000TA Carbon Dioxide Analyzer

External CO2 Scrubber

SAMPLE GAS
INLET
		Sample / Cal
		Valve
PRESSURE
SPAN INLET
VENT SPAN			CHAMBER	GFC Wheel Housing	GFC Motor Heat Sync
OUTLET
		Zero / Span
		Valve
IZS INLET

EXHAUST	PUMP		SAMPLE
GAS OUTLET
				Purge Gas Flow Control
	Sample Gas	Flow / Pressure	SAMPLE
	Flow Control	Sensor PCA	PRESSURE
	Flow Control	Sensor PCA	SENSOR

		NO2 FLOW
		SENSOR
PURGE GAS
INLET
		Purge Gas
		Pressure Control

Figure 10-8: Internal Pneumatic Flow – Ambient Zero/Ambient Span

Teledyne Analytical Instruments

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Teledyne gfc 7000ta operation manual Teledyne Analytical Instruments 231

Contents

Model GFC 7000TA Carbon Dioxide Analyzer Copyright 2013 Teledyne Analytical Instruments Model GFC7000TA Carbon Dioxide AnalyzerThis page intentionally left blank Page Safety Messages Model GFC7000TA Carbon Dioxide Analyzer Safety MessagesMise EN Garde Consignes DE SécuritéTeledyne Analytical Instruments Vii Page Rev Manual Information Model GFC7000TA Carbon Dioxide Analyzer07272 05233 06879 Name/DescriptionThis page intentionally left blank Table of Contents Calibration Procedures Setup ModeMaintenance Schedule & Procedures Troubleshooting & Repair ProceduresTheory of Operation Primer on ELECTRO-STATIC Discharge Appendix D Electronic Schematics104 103114 115195 194198 199120 118123 124Teledyne Analytical Instruments Xviii Using This Manual FeaturesTable of Contents SpecificationsCalibration Procedures FAQInstrument Maintenance TroubleshootingIntroduction Model GFC7000TA Carbon Dioxide Analyzer Page Specifications Model GFC7000TA Carbon Dioxide Analyzer SpecificationsModel GFC 7000TA Basic Unit Specifications GFC 7000TA Parameter GFC 7000TA SpecificationSpecifications Model GFC7000TA Carbon Dioxide Analyzer Safety Compliance GFC 7000TM Parameter GFC 7000TM SpecificationCE Mark Compliance Emissions CompliancePage Getting Started Model GFC7000TA Carbon Dioxide Analyzer Unpacking and Initial Set UpArea Minimum Required Clearance Sides of the instrumentFront Panel Layout Front PanelGetting Started Model GFC7000TA Carbon Dioxide Analyzer Description/Function Field Display and Touchscreen Control DescriptionDisplay/Touch Control Screen Mapped to Menu Charts Provides a description of each component on the rear panel Rear PanelDCE DTE Status Analog OUT Control Alarm Ethernet USB Component Cooling fan AC power connector Model/specs labelPurge Sample Exhaust Vent Span Pressure Span IZS RX TX COM RS-232Internal Chassis Layout Internal LayoutOptical Bench Layout GFC 7000TA Internal Gas Flow Electrical ConnectionsConnecting Analog Inputs Option Power ConnectionAnalog Input Pin Assignments Connecting Analog OutputsPIN Description DAS Parameter Analog input #PIN Analog Output VDC Signal Madc SignalGFC 7000TA Analog Output Pin Outs Connecting the Status Outputs 3 4 5 6 7 8 DStatus Output Pin-outs Connecting the Control Inputs Control Input Pin-outsInput # Status On Condition Definition Connecting to a LAN or the Internet Connecting the Communications InterfacesConnecting to a Personal Computer PC Connecting to a Multidrop NetworkRear Panel Pneumatic Connections Basic Pneumatic ConnectionsGetting Started Model GFC7000TA Carbon Dioxide Analyzer Getting Started Model GFC7000TA Carbon Dioxide Analyzer Getting Started Model GFC7000TA Carbon Dioxide Analyzer Connections with Internal Valve Options Installed Vent 15 Example of Pneumatic Set up for Multipoint Calibration Setting the Internal Purge Air PressureStartup Initial OperationWarm Up Front Panel Display During System Warm-UpName Color Behavior Significance Possible Warning Messages at Start-Up IR source may be faultyFunctional Check SetupSet the Analog Output Range Initial Calibration ProcedureConc Set the expected CO2 span gas concentrationSTABIL=XXX.X PPM Perform the Zero/Span Calibration Procedure1.1. O2 Calibration Setup Initial O2 Sensor Calibration Procedure1.2. O2 Calibration Method Pneumatic connections for calibrating are as followsPrevious display Activate O2 Sensor Stability FunctionTo Sample Model GFC 7000TA Analyzer is now ready for operation O2 Zero/Span Calibration perform by pressingThank YOU FAQ’s Frequently Asked QuestionsTerm Description/Definition GlossaryNitric acid Diagnostics, the diagnostic settings of the analyzerHydrogen sulfide Nitric oxide Nitrogen dioxidePoly Vinyl Chloride, a polymer used for downstream tubing Gas Filter CorrelationProtocol for Ethernet devices Variables, the variable settings of the instrumentTthis page intentionally left blank Rack Mount Kits Options 20A, 20B, 21 Current Loop Analog Outputs OptionOption Number Description Current Loop Option Installed on the Motherboard Expendable Kits Options 42C, 42D Option Number Description OPT 42COPT 42D Calibration Valves Options Ambient Zero/Pressurized Span ValveAmbient Zero/Pressurized Span Valve Operating States Ambient Zero/Ambient Span Valve Operating States Ambient Zero/Ambient Span ValveInternal Pneumatic Flow Ambient Zero/Ambient Span Communication Options FAQModel GFC7000TA Carbon Dioxide AnalyzerCommunications Cables RS-232 Multidrop OptionOxygen Sensor OPT Theory of OperationParamagnetic measurement of O2 Pneumatic Operation of the O2 Sensor Operation within the GFC 7000TA AnalyzerGFC 7000TA Internal Pneumatics with O2 Sensor Option Maintenance Mode Switch Special FeaturesSecond Language Switch Dilution Ratio OptionThis page intentionally left blank Front Panel Display Overview of Operating modesSample Mode Analyzer Operating modesMeaning Test Functions Test Functions DefinedParameter Display Units Meaning For Refer toDefinitions These testList of Warning Messages IR source may be faultyTo view and clear warning messages Calibration ModeSecondary Setup Mode Features and Functions Primary Setup Mode Features and FunctionsSetup  Acal Automatic Calibration Setup  CFG Viewing the Analyzer’s Configuration InformationFront Panel Sample LED Status Indicators for DAS Setup  DAS Using the Data Acquisition System DASLED State OFFDAS Structure DAS ChannelsDAS Data Channel Properties DAS Data Parameter Functions Default DAS Channels Default DAS Channels Setup DAS Configuration Limits Touchscreen Button Functions Translates to the following configuration Channel No Conc ATIMER, 4A-Z, space ’ ~ ! # $ % & * = + \ , . / ? Trigger EventsFrom the Data Acquisition menu From the Edit Data Parameter Menu see previous section To configure a specific data parameter, pressReport Periods in Progress When Instrument is Powered OFF From the Data Acquisition menu Press SET key until… Starting Date Compact ReportFrom the Data Acquisition menu Press SET key until… Apicom User Interface for DAS Configuration Remote DAS ConfigurationAnalog Output Connector Pin Out Setup  Rnge Analog Output Reporting Range ConfigurationReporting Range Modes Physical Range versus Analog Output Reporting RangesSngl Dual Auto To select the Analog Output Range Type pressSingle Range Mode Sngl Range Control Menu Dual Range Mode DualAuto Range Mode Auto Range Units To change the concentration unitsExit returns To the main menu Dilution Ratio Primary Setup MenuSetup  Pass Password Feature Password LevelsPassword Level Menu Access Allowed Enter Setup Pass Setup  CLK Setting the Internal Time-of-Day Clock Teledyne Analytical Instruments 100 Analyzer ID Setup  MORE Comm Using the Analyzer’s Communication PortsCOM Port Default Settings Teledyne Analytical Instruments 103 Teledyne Analytical Instruments 104 DTE and DCE Communication RS-485 Configuration of COM2COM Port Communication Modes 10 Com Port Communication ModesMODE1 Description Teledyne Analytical Instruments 107 Remote Access via the Ethernet Configuring the Ethernet Interface using Dhcp11 Ethernet Status Indicators Instrument Property Default State Description DhcpIP Address Gateway IPTo view the above properties, press Teledyne Analytical Instruments 111 Teledyne Analytical Instruments 112 Button Function 13 Internet Configuration Touchscreen FunctionsMultidrop/LVDS PCA Seated on CPU Multidrop RS-232 Set UpTeledyne Analytical Instruments 115 To select the baud rate of one of the COM Ports, press COM Port Baud RateCOM Port Testing Setup  More  Vars Internal Variables Vars Teledyne Analytical Instruments 119 Setup  More  Diag Using the Diagnostics Functions 15 GFC 7000TA Diagnostic Diag FunctionsDiagnostic Function and Meaning Accessing the Diagnostic Features Signal I/OTo access the Diag functions press the following buttons Analog Output Step Test To enter the signal I/O test mode, pressTo begin the Analog Output Step Test press Analog I/O Configuration16 Diag Analog I/O Functions Sub Menu FunctionRange Minimum Output Maximum Output 17 Analog Output Voltage RangesPIN Analog Voltage Current Output Signal 18 Analog Output Current Loop Range19 Analog Output Pin Assignments 10V Curr Entr Exit Analog Output Calibration ModeTeledyne Analytical Instruments 127 Teledyne Analytical Instruments 128 Manual Analog Output Calibration and Voltage Adjustment 20 Voltage Tolerances for Analog Output CalibrationVDC Teledyne Analytical Instruments 130 Edit Current Loop Output AdjustmentTeledyne Analytical Instruments 132 SET 21 Current Loop Output Calibration with ResistorConfiguring Analog Inputs Option Channels Teledyne Analytical Instruments 135 Repeat Pressing Next unti Electric TestRepeat Pressing Next until Dark Calibration TestRepeat Pressing Next until Pressure CalibrationFlow Calibration Signal I / O NextTest Channel Output 22 Test Parameters Available for Analog Output A4Test Channel Zero Full Scale Setup MORE  Alrm Using the Gas Concentration Alarms 23 CO2 Concentration Alarm Default SettingsAlarm Status Limit SET Point ALM1 Remote Operation Using the External Digital I/O Setting the Concentration Alarm LimitsRemote Operation of the Analyzer Status OutputsStatus Pin assignments for the Status Outputs are DC Power24 Status Output Pin Assignments Emitter BUS25 Control Input Pin Assignments Input Status Condition When Enabled External ZeroCAL External SpanHelp Commands in Terminal Mode Remote Operation Using the External Serial I/O26 Terminal Mode Software Commands Terminal Operating ModesCommand Command Type 27 Command TypesData Types Achieved by pressing the Enter button on a computerMeasurements, DAS reports, variable values, etc Status ReportingTeledyne Analytical Instruments 149 Teledyne Analytical Instruments 150 To initialize the modem press COM Port Password SecurityWhere N is any numeral between 0 Apicom Remote Control ProgramAdditional Communications Documentation Using the GFC 7000TA with a Hessen Protocol NetworkGeneral Overview of Hessen Protocol 28 Serial Interface Documents29 RS-232 Communication Parameters for Hessen Protocol To select a Hessen Protocol Type press Selecting a Hessen Protocol TypeMode ID Mode Description CMD Setting The Hessen Protocol Response Mode30 Teledyne Instruments Hessen Protocol Response Modes BCCTo Select a Hessen response mode, press Hessen Protocol Gas IDStatus Flag Name Default BIT Assignment 31 Default Hessen Status Bit AssignmentsInstrument ID Code To assign or reset the status flag bit assignments, pressPage Zero Air and Span Gas Before CalibrationManual Calibration without Zero/Span Valves Calibration Gas TraceabilityData Recording Devices Step TWO Set the expected CO2 Span Gas concentration Span Step Three Perform the Zero/Span Calibration ProcedureTST TST CAL Manual Calibration ChecksPneumatic Connections Ambient Zero/Pressurized Span Valves Manual Calibration with Zero/Span ValvesPneumatic Connections Ambient Zero/Ambient Span Valves Sample GASSample GAS Teledyne Analytical Instruments 169 Teledyne Analytical Instruments 170 Manual Calibration Checks with Zero/Span Valves Zero/Span Calibration on Auto Range or Dual Ranges Analyzer Enters Zero CAL ModeAutomatic Zero/Span Cal/Check AutoCal AutoCal Attribute Setup ParametersUse of Zero/Span Valves with Remote Contact Closure Autocal ModesMode and Attribute Value Comment Next To program the SequenceAutoCal with Auto or Dual Reporting Ranges Modes Selected Calibration QualityCalibration Data Quality Evaluation Function Minimum Value Optimum Value Maximum Value SlopeTeledyne Analytical Instruments 177 Page Maintenance Schedule Maintenance Schedule & ProceduresPage GFC 7000TA Maintenance Schedule Maintenance Model GFC7000TA Carbon Dioxide AnalyzerAction FreqCO2 Meas StabilityMR Ratio PresPredictive uses for Test Functions Predicting Failures Using the Test FunctionsReplacing the Sample Particulate Filter Maintenance ProceduresPerforming Leak Checks Rebuilding the Sample PumpVacuum Leak Check and Pump Check Pressure Leak CheckCleaning the Optical Bench Cleaning Exterior Surfaces of the GFC 7000TAPerforming a Sample Flow Check Beer’s Law Measurement MethodMeasurement Fundamentals Theory of Operation Model GFC7000TA Carbon Dioxide AnalyzerGFC Wheel Gas Filter CorrelationMeasurement Fundamentals with GFC Wheel Measure Reference RatioIs reduced Interference and Signal to Noise RejectionEffects of Interfering Gas on CO2 Meas & CO2 REF Is ShiftedTeledyne Analytical Instruments 192 Pneumatic Operation Sample Gas Flow Flow Rate ControlCritical Flow Orifice Teledyne Analytical Instruments 195 Particulate Filter Purge Gas Pressure ControlPneumatic Sensors Sample Pressure SensorOverview Electronic OperationSensor CPU CardSync DemodCPU Disk-On-Module DOMFlash Chip Temperature Control Optical Bench & GFC WheelIR Source Segment Sensor 11 GFC Light Mask SensorSynchronous Demodulator Sync/Demod Assembly IR Photo-DetectorOverview 13 GFC 7000TA Sync / Demod Block Diagram Signal Synchronization and DemodulationSync/Demod Status LED’s LED Function Status OK Fault StatusFour sample and hold circuits are Sync/Demod Status LED ActivityElectric Test Switch Dark Calibration SwitchRelay Board Heater ControlLED Color Function Status When LIT Status When Unlit Status LEDsRelay Board Status LED’s Mother Board 5.6. I2C Watch Dog CircuitryTo D Conversion Thermistor Interface Sensor InputsInternal Digital I/O Analog Outputs7. I2C Data Bus Power up CircuitStatus Outputs Control Inputs16 Power Distribution Block Diagram Power Supply/ Circuit BreakerFront Panel Touchscreen/Display Interface Lvds Transmitter BoardFront Panel Touchscreen/Display Interface PCA Adaptive Filter Software OperationWindows CE API FirmwareMeasurement Algorithm Calibration Slope and OffsetInternal Data Acquisition System DAS Temperature and Pressure CompensationTeledyne Analytical Instruments 216 Troubleshooting Model GFC7000TA Carbon Dioxide Analyzer General Troubleshooting HintsInterpreting Warning Messages Viewing and Clearing Warning Messages To view or clear the various warning messages pressConc ALRM2 Conc ALRM1Fault Condition Possible Causes Message Sample Temp Fault Diagnosis with Test FunctionsSystem Reset SourceIndicated Failures Test Functions Indicated FailuresTest Functions Slope Offset Using the Diagnostic Signal I/O FunctionInternal Electronic Status LEDs CPU Status IndicatorLED Function Fault Status Indicated Failures Sync Demodulator Status LED’sSync/Demod Board Status Failure Indications Relay Board Status LEDs LED Function Fault Status Indicated FailuresI2C Status LED Failure Indications DC Voltage TestRelay Board Status LED Failure Indications Gas Flow Problems Sample Chamber GFC 7000TA Internal Gas Flow DiagramsTeledyne Analytical Instruments 230 Teledyne Analytical Instruments 231 Flow is Zero Typical Sample Gas Flow ProblemsLow Flow High FlowDisplayed Flow = Poor or Stopped Flow of Purge Gas Actual Flow Does Not Match Displayed FlowSample Pump Miscalibrated Calibration ProblemsInability to Span Touchscreen Span Button Not Visible Non-Repeatable Zero and SpanInability to Zero Touchscreen Zero Button Not Visible Temperature Problems Other Performance ProblemsBox or Sample Temperature Bench TemperatureIR Photo-Detector TEC Temperature GFC Wheel TemperatureExcessive Noise DC Power Supply AC Mains ConfigurationDC Power Test Point and Wiring Color Codes Name Test POINT# TP and Wire Color10.5.3. I2C Bus DC Power Supply Acceptable LevelsTouchscreen Interface LCD Display ModuleSync/Demodulator Assembly Sensor AssemblyRelay Board Control Devices Function Control Socket DeviceGFC Wheel Drive Opto Pickup AssemblyOpto Pickup Board Nominal Output Frequencies Nominal Measured FrequencyPressure/Flow Sensor Assembly Motherboard10.5.8.1. A/D Functions Teledyne Analytical Instruments 246 Full Scale Output Voltage Analog Outputs Current LoopStep Nominal Output Voltage Output Range Nominal Output Values Step Current12 Status Outputs Check Control Inputs Remote Zero, SpanRS-232 Communications General RS-232 TroubleshootingTeledyne Analytical Instruments 250 Repairing Sample Flow Control Assembly Repair ProceduresRemoving/Replacing the GFC Wheel 11 Opening the GFC Wheel Housing12 Removing the GFC Wheel Disk-On-Module Replacement ProcedureTeledyne Analytical Instruments 254 How Static Charges are Created Static Generation Voltages for Typical ActivitiesMeans of Generation Sensitivity of Electronic Devices to Damage by ESD How Electro-Static Charges Cause DamageDamage Susceptibility Voltage Device RangeCommon Myths About ESD Damage Basic Principles of Static ControlGeneral Rules Teledyne Analytical Instruments 258 Working at an Anti-ESD Work Bench Working at the Instrument RackTransferring Components from Rack to Bench and Back Opening Shipments from Teledyne Instruments Customer ServiceTeledyne Analytical Instruments 261 Teledyne Analytical Instruments 262