Model GFC 7000TA Carbon Dioxide Analyzer
Copyright 2013 Teledyne Analytical Instruments
Model GFC7000TA Carbon Dioxide Analyzer
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Safety Messages Model GFC7000TA Carbon Dioxide Analyzer
Safety Messages
Mise EN Garde
Consignes DE Sécurité
Teledyne Analytical Instruments Vii
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Rev
Manual Information Model GFC7000TA Carbon Dioxide Analyzer
07272 05233 06879
Name/Description
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Table of Contents
Calibration Procedures
Setup Mode
Theory of Operation
Maintenance Schedule & Procedures
Troubleshooting & Repair Procedures
Primer on ELECTRO-STATIC Discharge
Appendix D Electronic Schematics
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103
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Using This Manual
Features
Table of Contents
Specifications
Calibration Procedures
FAQ
Instrument Maintenance
Troubleshooting
Introduction Model GFC7000TA Carbon Dioxide Analyzer
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Specifications Model GFC7000TA Carbon Dioxide Analyzer
Specifications
Model GFC 7000TA Basic Unit Specifications
GFC 7000TA Parameter GFC 7000TA Specification
Specifications Model GFC7000TA Carbon Dioxide Analyzer
Safety Compliance
GFC 7000TM Parameter GFC 7000TM Specification
CE Mark Compliance
Emissions Compliance
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Getting Started Model GFC7000TA Carbon Dioxide Analyzer
Unpacking and Initial Set Up
Area Minimum Required Clearance
Sides of the instrument
Front Panel Layout
Front Panel
Getting Started Model GFC7000TA Carbon Dioxide Analyzer
Description/Function Field
Display and Touchscreen Control Description
Display/Touch Control Screen Mapped to Menu Charts
Provides a description of each component on the rear panel
Rear Panel
DCE DTE Status Analog OUT Control Alarm Ethernet USB
Component Cooling fan AC power connector Model/specs label
Purge Sample Exhaust Vent Span Pressure Span IZS RX TX COM
RS-232
Internal Chassis Layout
Internal Layout
Optical Bench Layout
GFC 7000TA Internal Gas Flow
Electrical Connections
Connecting Analog Inputs Option
Power Connection
Analog Input Pin Assignments
Connecting Analog Outputs
PIN Description DAS Parameter
Analog input #
GFC 7000TA Analog Output Pin Outs
PIN Analog Output VDC Signal
Madc Signal
Status Output Pin-outs
Connecting the Status Outputs
3 4 5 6 7 8 D
Input # Status On Condition Definition
Connecting the Control Inputs
Control Input Pin-outs
Connecting to a LAN or the Internet
Connecting the Communications Interfaces
Connecting to a Personal Computer PC
Connecting to a Multidrop Network
Rear Panel Pneumatic Connections
Basic Pneumatic Connections
Getting 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 Pressure
Startup
Initial Operation
Name Color Behavior Significance
Warm Up
Front Panel Display During System Warm-Up
Possible Warning Messages at Start-Up
IR source may be faulty
Functional Check
Setup
Set the Analog Output Range
Initial Calibration Procedure
Conc
Set the expected CO2 span gas concentration
STABIL=XXX.X PPM
Perform the Zero/Span Calibration Procedure
1.1. O2 Calibration Setup
Initial O2 Sensor Calibration Procedure
1.2. O2 Calibration Method
Pneumatic connections for calibrating are as follows
Previous display
Activate O2 Sensor Stability Function
To Sample
Model GFC 7000TA Analyzer is now ready for operation
O2 Zero/Span Calibration perform by pressing
Thank YOU
FAQ’s
Frequently Asked Questions
Term Description/Definition
Glossary
Nitric acid
Diagnostics, the diagnostic settings of the analyzer
Hydrogen sulfide Nitric oxide
Nitrogen dioxide
Poly Vinyl Chloride, a polymer used for downstream tubing
Gas Filter Correlation
Protocol for Ethernet devices
Variables, the variable settings of the instrument
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Option Number Description
Rack Mount Kits Options 20A, 20B, 21
Current Loop Analog Outputs Option
Current Loop Option Installed on the Motherboard
OPT 42D
Expendable Kits Options 42C, 42D
Option Number Description OPT 42C
Ambient Zero/Pressurized Span Valve Operating States
Calibration Valves Options
Ambient Zero/Pressurized Span Valve
Ambient Zero/Ambient Span Valve Operating States
Ambient Zero/Ambient Span Valve
Internal Pneumatic Flow Ambient Zero/Ambient Span
Communication Options
FAQModel GFC7000TA Carbon Dioxide Analyzer
Communications Cables
RS-232 Multidrop Option
Paramagnetic measurement of O2
Oxygen Sensor OPT
Theory of Operation
Pneumatic Operation of the O2 Sensor
Operation within the GFC 7000TA Analyzer
GFC 7000TA Internal Pneumatics with O2 Sensor Option
Maintenance Mode Switch
Special Features
Second Language Switch
Dilution Ratio Option
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Front Panel Display
Overview of Operating modes
Meaning
Sample Mode
Analyzer Operating modes
Parameter Display Units Meaning
Test Functions
Test Functions Defined
For
Refer to
Definitions
These test
List of Warning Messages
To view and clear warning messages
Calibration Mode
Secondary Setup Mode Features and Functions
Primary Setup Mode Features and Functions
Setup Acal Automatic Calibration
Setup CFG Viewing the Analyzer’s Configuration Information
Front Panel Sample LED Status Indicators for DAS
Setup DAS Using the Data Acquisition System DAS
LED State
OFF
DAS Data Channel Properties
DAS Structure
DAS Channels
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, 4
A-Z, space ’ ~ ! # $ % & * = + \ , . / ?
Trigger Events
From the Data Acquisition menu
From the Edit Data Parameter Menu see previous section
To configure a specific data parameter, press
Report Periods in Progress When Instrument is Powered OFF
From the Data Acquisition menu
Press SET key until…
Starting Date
Compact Report
From the Data Acquisition menu
Press SET key until…
Apicom User Interface for DAS Configuration
Remote DAS Configuration
Analog Output Connector Pin Out
Setup Rnge Analog Output Reporting Range Configuration
Reporting Range Modes
Physical Range versus Analog Output Reporting Ranges
Sngl Dual Auto
To select the Analog Output Range Type press
Single Range Mode Sngl
Range Control Menu
Dual Range Mode Dual
Auto Range Mode Auto
Exit returns To the main menu
Range Units
To change the concentration units
Dilution Ratio
Primary Setup Menu
Password Level Menu Access Allowed
Setup Pass Password Feature
Password Levels
Enter Setup Pass
Setup CLK Setting the Internal Time-of-Day Clock
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Analyzer ID
Setup MORE Comm Using the Analyzer’s Communication Ports
COM Port Default Settings
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DTE and DCE Communication
RS-485 Configuration of COM2
MODE1 Description
COM Port Communication Modes
10 Com Port Communication Modes
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11 Ethernet Status Indicators
Remote Access via the Ethernet
Configuring the Ethernet Interface using Dhcp
Instrument
Property Default State Description Dhcp
IP Address
Gateway IP
To view the above properties, press
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Button Function
13 Internet Configuration Touchscreen Functions
Multidrop/LVDS PCA Seated on CPU
Multidrop RS-232 Set Up
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To select the baud rate of one of the COM Ports, press
COM Port Baud Rate
COM Port Testing
Setup More Vars Internal Variables Vars
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Diagnostic Function and Meaning
Setup More Diag Using the Diagnostics Functions
15 GFC 7000TA Diagnostic Diag Functions
To access the Diag functions press the following buttons
Accessing the Diagnostic Features
Signal I/O
Analog Output Step Test
To enter the signal I/O test mode, press
To begin the Analog Output Step Test press
Analog I/O Configuration
16 Diag Analog I/O Functions
Sub Menu Function
Range Minimum Output Maximum Output
17 Analog Output Voltage Ranges
19 Analog Output Pin Assignments
PIN Analog Voltage Current Output Signal
18 Analog Output Current Loop Range
10V Curr Entr Exit
Analog Output Calibration Mode
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VDC
Manual Analog Output Calibration and Voltage Adjustment
20 Voltage Tolerances for Analog Output Calibration
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Edit
Current Loop Output Adjustment
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SET
21 Current Loop Output Calibration with Resistor
Configuring Analog Inputs Option Channels
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Repeat Pressing Next unti
Electric Test
Repeat Pressing Next until
Dark Calibration Test
Repeat Pressing Next until
Pressure Calibration
Flow Calibration
Signal I / O Next
Test Channel Zero Full Scale
Test Channel Output
22 Test Parameters Available for Analog Output A4
Alarm Status Limit SET Point ALM1
Setup MORE Alrm Using the Gas Concentration Alarms
23 CO2 Concentration Alarm Default Settings
Remote Operation Using the External Digital I/O
Setting the Concentration Alarm Limits
Remote Operation of the Analyzer
Status Outputs
Status
Pin assignments for the Status Outputs are
DC Power
24 Status Output Pin Assignments
Emitter BUS
25 Control Input Pin Assignments
Input Status Condition When Enabled External Zero
CAL
External Span
Help Commands in Terminal Mode
Remote Operation Using the External Serial I/O
26 Terminal Mode Software Commands
Terminal Operating Modes
Command Command Type
27 Command Types
Data Types
Achieved by pressing the Enter button on a computer
Measurements, DAS reports, variable values, etc
Status Reporting
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To initialize the modem press
COM Port Password Security
Where N is any numeral between 0
Apicom Remote Control Program
Additional Communications Documentation
Using the GFC 7000TA with a Hessen Protocol Network
General Overview of Hessen Protocol
28 Serial Interface Documents
29 RS-232 Communication Parameters for Hessen Protocol
To select a Hessen Protocol Type press
Selecting a Hessen Protocol Type
Mode ID Mode Description CMD
Setting The Hessen Protocol Response Mode
30 Teledyne Instruments Hessen Protocol Response Modes
BCC
To Select a Hessen response mode, press
Hessen Protocol Gas ID
Status Flag Name Default BIT Assignment
31 Default Hessen Status Bit Assignments
Instrument ID Code
To assign or reset the status flag bit assignments, press
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Zero Air and Span Gas
Before Calibration
Data Recording Devices
Manual Calibration without Zero/Span Valves
Calibration Gas Traceability
Step TWO Set the expected CO2 Span Gas concentration
Span
Step Three Perform the Zero/Span Calibration Procedure
TST TST CAL
Manual Calibration Checks
Pneumatic Connections Ambient Zero/Pressurized Span Valves
Manual Calibration with Zero/Span Valves
Pneumatic Connections Ambient Zero/Ambient Span Valves
Sample GAS
Sample GAS
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Manual Calibration Checks with Zero/Span Valves
Zero/Span Calibration on Auto Range or Dual Ranges
Analyzer Enters Zero CAL Mode
Automatic Zero/Span Cal/Check AutoCal
AutoCal Attribute Setup Parameters
Use of Zero/Span Valves with Remote Contact Closure
Autocal Modes
Mode and Attribute Value Comment
Next
To program the Sequence
AutoCal with Auto or Dual Reporting Ranges Modes Selected
Calibration Quality
Calibration Data Quality Evaluation
Function Minimum Value Optimum Value Maximum Value Slope
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Maintenance Schedule
Maintenance Schedule & Procedures
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GFC 7000TA Maintenance Schedule
Maintenance Model GFC7000TA Carbon Dioxide Analyzer
Action
Freq
CO2 Meas
Stability
MR Ratio
Pres
Predictive uses for Test Functions
Predicting Failures Using the Test Functions
Replacing the Sample Particulate Filter
Maintenance Procedures
Performing Leak Checks
Rebuilding the Sample Pump
Vacuum Leak Check and Pump Check
Pressure Leak Check
Performing a Sample Flow Check
Cleaning the Optical Bench
Cleaning Exterior Surfaces of the GFC 7000TA
Beer’s Law
Measurement Method
Measurement Fundamentals
Theory of Operation Model GFC7000TA Carbon Dioxide Analyzer
GFC Wheel
Gas Filter Correlation
Measurement Fundamentals with GFC Wheel
Measure Reference Ratio
Is reduced
Interference and Signal to Noise Rejection
Effects of Interfering Gas on CO2 Meas & CO2 REF
Is Shifted
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Pneumatic Operation
Critical Flow Orifice
Sample Gas Flow
Flow Rate Control
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Particulate Filter
Purge Gas Pressure Control
Pneumatic Sensors
Sample Pressure Sensor
Overview
Electronic Operation
Sensor
CPU Card
Sync
Demod
Flash Chip
CPU
Disk-On-Module DOM
IR Source
Temperature Control
Optical Bench & GFC Wheel
Segment Sensor
11 GFC Light Mask Sensor
Overview
Synchronous Demodulator Sync/Demod Assembly
IR Photo-Detector
13 GFC 7000TA Sync / Demod Block Diagram
Signal Synchronization and Demodulation
Sync/Demod Status LED’s
LED Function Status OK Fault Status
Four sample and hold circuits are
Sync/Demod Status LED Activity
Electric Test Switch
Dark Calibration Switch
Relay Board
Heater Control
Relay Board Status LED’s
LED Color Function Status When LIT Status When Unlit
Status LEDs
To D Conversion
Mother Board
5.6. I2C Watch Dog Circuitry
Thermistor Interface
Sensor Inputs
Internal Digital I/O
Analog Outputs
7. I2C Data Bus
Power up Circuit
Status Outputs
Control Inputs
16 Power Distribution Block Diagram
Power Supply/ Circuit Breaker
Front Panel Touchscreen/Display Interface PCA
Front Panel Touchscreen/Display Interface
Lvds Transmitter Board
Adaptive Filter
Software Operation
Windows CE
API Firmware
Measurement Algorithm
Calibration Slope and Offset
Internal Data Acquisition System DAS
Temperature and Pressure Compensation
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Troubleshooting Model GFC7000TA Carbon Dioxide Analyzer
General Troubleshooting Hints
Interpreting Warning Messages
Viewing and Clearing Warning Messages
To view or clear the various warning messages press
Conc ALRM2
Conc ALRM1
Fault Condition Possible Causes Message Sample Temp
Fault Diagnosis with Test Functions
System Reset
Source
Indicated Failures
Test Functions Indicated Failures
Test Functions Slope Offset
Using the Diagnostic Signal I/O Function
Internal Electronic Status LEDs
CPU Status Indicator
Sync/Demod Board Status Failure Indications
LED Function Fault Status Indicated Failures
Sync Demodulator Status LED’s
Relay Board Status LEDs
LED Function Fault Status Indicated Failures
I2C Status LED Failure Indications
DC Voltage Test
Relay Board Status LED Failure Indications
Gas Flow Problems
Sample Chamber
GFC 7000TA Internal Gas Flow Diagrams
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Flow is Zero
Typical Sample Gas Flow Problems
Displayed Flow =
Low Flow
High Flow
Sample Pump
Poor or Stopped Flow of Purge Gas
Actual Flow Does Not Match Displayed Flow
Miscalibrated
Calibration Problems
Inability to Span Touchscreen Span Button Not Visible
Non-Repeatable Zero and Span
Inability to Zero Touchscreen Zero Button Not Visible
Temperature Problems
Other Performance Problems
Box or Sample Temperature
Bench Temperature
IR Photo-Detector TEC Temperature
GFC Wheel Temperature
Excessive Noise
DC Power Supply
AC Mains Configuration
DC Power Test Point and Wiring Color Codes
Name Test POINT# TP and Wire Color
10.5.3. I2C Bus
DC Power Supply Acceptable Levels
Touchscreen Interface
LCD Display Module
Sync/Demodulator Assembly
Sensor Assembly
Relay Board Control Devices
Function Control Socket Device
GFC Wheel Drive
Opto Pickup Assembly
Opto Pickup Board Nominal Output Frequencies
Nominal Measured Frequency
10.5.8.1. A/D Functions
Pressure/Flow Sensor Assembly
Motherboard
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Full Scale Output Voltage
Analog Outputs Current Loop
Step Nominal Output Voltage
Output Range Nominal Output Values Step Current
12 Status Outputs Check
Control Inputs Remote Zero, Span
RS-232 Communications
General RS-232 Troubleshooting
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Repairing Sample Flow Control Assembly
Repair Procedures
Removing/Replacing the GFC Wheel
11 Opening the GFC Wheel Housing
12 Removing the GFC Wheel
Disk-On-Module Replacement Procedure
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Means of Generation
How Static Charges are Created
Static Generation Voltages for Typical Activities
Sensitivity of Electronic Devices to Damage by ESD
How Electro-Static Charges Cause Damage
Damage Susceptibility Voltage
Device Range
General Rules
Common Myths About ESD Damage
Basic Principles of Static Control
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Working at an Anti-ESD Work Bench
Working at the Instrument Rack
Transferring Components from Rack to Bench and Back
Opening Shipments from Teledyne Instruments Customer Service
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