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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Name/Description
Manual Information Model GFC7000TA Carbon Dioxide Analyzer
Rev
07272 05233 06879
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Table of Contents
Calibration Procedures
Setup Mode
Maintenance Schedule & Procedures
Troubleshooting & Repair Procedures
Theory of Operation
Primer on ELECTRO-STATIC Discharge
Appendix D Electronic Schematics
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Specifications
Features
Using This Manual
Table of Contents
Troubleshooting
FAQ
Calibration Procedures
Instrument Maintenance
Introduction Model GFC7000TA Carbon Dioxide Analyzer
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GFC 7000TA Parameter GFC 7000TA Specification
Specifications
Specifications Model GFC7000TA Carbon Dioxide Analyzer
Model GFC 7000TA Basic Unit Specifications
Specifications Model GFC7000TA Carbon Dioxide Analyzer
Emissions Compliance
GFC 7000TM Parameter GFC 7000TM Specification
Safety Compliance
CE Mark 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
RS-232
Component Cooling fan AC power connector Model/specs label
DCE DTE Status Analog OUT Control Alarm Ethernet USB
Purge Sample Exhaust Vent Span Pressure Span IZS RX TX COM
Internal Chassis Layout
Internal Layout
Optical Bench Layout
GFC 7000TA Internal Gas Flow
Electrical Connections
Connecting Analog Inputs Option
Power Connection
Analog input #
Connecting Analog Outputs
Analog Input Pin Assignments
PIN Description DAS Parameter
PIN Analog Output VDC Signal
Madc Signal
GFC 7000TA Analog Output Pin Outs
Connecting the Status Outputs
3 4 5 6 7 8 D
Status Output Pin-outs
Connecting the Control Inputs
Control Input Pin-outs
Input # Status On Condition Definition
Connecting to a Multidrop Network
Connecting the Communications Interfaces
Connecting to a LAN or the Internet
Connecting to a Personal Computer PC
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
Warm Up
Front Panel Display During System Warm-Up
Name Color Behavior Significance
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
Pneumatic connections for calibrating are as follows
Initial O2 Sensor Calibration Procedure
1.1. O2 Calibration Setup
1.2. O2 Calibration Method
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
Nitrogen dioxide
Diagnostics, the diagnostic settings of the analyzer
Nitric acid
Hydrogen sulfide Nitric oxide
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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Rack Mount Kits Options 20A, 20B, 21
Current Loop Analog Outputs Option
Option Number Description
Current Loop Option Installed on the Motherboard
Expendable Kits Options 42C, 42D
Option Number Description OPT 42C
OPT 42D
Calibration Valves Options
Ambient Zero/Pressurized Span Valve
Ambient Zero/Pressurized Span Valve Operating States
Ambient Zero/Ambient Span Valve Operating States
Ambient Zero/Ambient Span Valve
Internal Pneumatic Flow Ambient Zero/Ambient Span
RS-232 Multidrop Option
FAQModel GFC7000TA Carbon Dioxide Analyzer
Communication Options
Communications Cables
Oxygen Sensor OPT
Theory of Operation
Paramagnetic measurement of O2
Pneumatic Operation of the O2 Sensor
Operation within the GFC 7000TA Analyzer
GFC 7000TA Internal Pneumatics with O2 Sensor Option
Dilution Ratio Option
Special Features
Maintenance Mode Switch
Second Language Switch
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Front Panel Display
Overview of Operating modes
Sample Mode
Analyzer Operating modes
Meaning
Test Functions
Test Functions Defined
Parameter Display Units Meaning
These test
Refer to
For
Definitions
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
OFF
Setup DAS Using the Data Acquisition System DAS
Front Panel Sample LED Status Indicators for DAS
LED State
DAS Structure
DAS Channels
DAS 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, 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
Range Units
To change the concentration units
Exit returns To the main menu
Dilution Ratio
Primary Setup Menu
Setup Pass Password Feature
Password Levels
Password Level Menu Access Allowed
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
COM Port Communication Modes
10 Com Port Communication Modes
MODE1 Description
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Remote Access via the Ethernet
Configuring the Ethernet Interface using Dhcp
11 Ethernet Status Indicators
Gateway IP
Property Default State Description Dhcp
Instrument
IP Address
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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Setup More Diag Using the Diagnostics Functions
15 GFC 7000TA Diagnostic Diag Functions
Diagnostic Function and Meaning
Accessing the Diagnostic Features
Signal I/O
To access the Diag functions press the following buttons
Analog Output Step Test
To enter the signal I/O test mode, press
Sub Menu Function
Analog I/O Configuration
To begin the Analog Output Step Test press
16 Diag Analog I/O Functions
Range Minimum Output Maximum Output
17 Analog Output Voltage Ranges
PIN Analog Voltage Current Output Signal
18 Analog Output Current Loop Range
19 Analog Output Pin Assignments
10V Curr Entr Exit
Analog Output Calibration Mode
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Manual Analog Output Calibration and Voltage Adjustment
20 Voltage Tolerances for Analog Output Calibration
VDC
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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 Output
22 Test Parameters Available for Analog Output A4
Test Channel Zero Full Scale
Setup MORE Alrm Using the Gas Concentration Alarms
23 CO2 Concentration Alarm Default Settings
Alarm Status Limit SET Point ALM1
Status Outputs
Setting the Concentration Alarm Limits
Remote Operation Using the External Digital I/O
Remote Operation of the Analyzer
Status
Emitter BUS
DC Power
Pin assignments for the Status Outputs are
24 Status Output Pin Assignments
External Span
Input Status Condition When Enabled External Zero
25 Control Input Pin Assignments
CAL
Terminal Operating Modes
Remote Operation Using the External Serial I/O
Help Commands in Terminal Mode
26 Terminal Mode Software Commands
Achieved by pressing the Enter button on a computer
27 Command Types
Command Command Type
Data Types
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
28 Serial Interface Documents
Using the GFC 7000TA with a Hessen Protocol Network
Additional Communications Documentation
General Overview of Hessen Protocol
29 RS-232 Communication Parameters for Hessen Protocol
To select a Hessen Protocol Type press
Selecting a Hessen Protocol Type
BCC
Setting The Hessen Protocol Response Mode
Mode ID Mode Description CMD
30 Teledyne Instruments Hessen Protocol Response Modes
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
Manual Calibration without Zero/Span Valves
Calibration Gas Traceability
Data Recording Devices
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
Autocal Modes
AutoCal Attribute Setup Parameters
Automatic Zero/Span Cal/Check AutoCal
Use of Zero/Span Valves with Remote Contact Closure
Mode and Attribute Value Comment
Next
To program the Sequence
Function Minimum Value Optimum Value Maximum Value Slope
Calibration Quality
AutoCal with Auto or Dual Reporting Ranges Modes Selected
Calibration Data Quality Evaluation
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Maintenance Schedule
Maintenance Schedule & Procedures
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Freq
Maintenance Model GFC7000TA Carbon Dioxide Analyzer
GFC 7000TA Maintenance Schedule
Action
Pres
Stability
CO2 Meas
MR Ratio
Predictive uses for Test Functions
Predicting Failures Using the Test Functions
Replacing the Sample Particulate Filter
Maintenance Procedures
Pressure Leak Check
Rebuilding the Sample Pump
Performing Leak Checks
Vacuum Leak Check and Pump Check
Cleaning the Optical Bench
Cleaning Exterior Surfaces of the GFC 7000TA
Performing a Sample Flow Check
Theory of Operation Model GFC7000TA Carbon Dioxide Analyzer
Measurement Method
Beer’s Law
Measurement Fundamentals
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
Sample Gas Flow
Flow Rate Control
Critical Flow Orifice
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Sample Pressure Sensor
Purge Gas Pressure Control
Particulate Filter
Pneumatic Sensors
Overview
Electronic Operation
Demod
CPU Card
Sensor
Sync
CPU
Disk-On-Module DOM
Flash Chip
Temperature Control
Optical Bench & GFC Wheel
IR Source
Segment Sensor
11 GFC Light Mask Sensor
Synchronous Demodulator Sync/Demod Assembly
IR Photo-Detector
Overview
13 GFC 7000TA Sync / Demod Block Diagram
Signal Synchronization and Demodulation
Sync/Demod Status LED Activity
LED Function Status OK Fault Status
Sync/Demod Status LED’s
Four sample and hold circuits are
Heater Control
Dark Calibration Switch
Electric Test Switch
Relay Board
LED Color Function Status When LIT Status When Unlit
Status LEDs
Relay Board Status LED’s
Mother Board
5.6. I2C Watch Dog Circuitry
To D Conversion
Thermistor Interface
Sensor Inputs
Internal Digital I/O
Analog Outputs
Control Inputs
Power up Circuit
7. I2C Data Bus
Status Outputs
16 Power Distribution Block Diagram
Power Supply/ Circuit Breaker
Front Panel Touchscreen/Display Interface
Lvds Transmitter Board
Front Panel Touchscreen/Display Interface PCA
API Firmware
Software Operation
Adaptive Filter
Windows CE
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
Source
Fault Diagnosis with Test Functions
Fault Condition Possible Causes Message Sample Temp
System Reset
Indicated Failures
Test Functions Indicated Failures
Test Functions Slope Offset
Using the Diagnostic Signal I/O Function
Internal Electronic Status LEDs
CPU Status Indicator
LED Function Fault Status Indicated Failures
Sync Demodulator Status LED’s
Sync/Demod Board Status Failure Indications
DC Voltage Test
LED Function Fault Status Indicated Failures
Relay Board Status LEDs
I2C Status LED Failure Indications
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
Low Flow
High Flow
Displayed Flow =
Poor or Stopped Flow of Purge Gas
Actual Flow Does Not Match Displayed Flow
Sample Pump
Miscalibrated
Calibration Problems
Inability to Span Touchscreen Span Button Not Visible
Non-Repeatable Zero and Span
Inability to Zero Touchscreen Zero Button Not Visible
Bench Temperature
Other Performance Problems
Temperature Problems
Box or Sample Temperature
IR Photo-Detector TEC Temperature
GFC Wheel Temperature
Excessive Noise
Name Test POINT# TP and Wire Color
AC Mains Configuration
DC Power Supply
DC Power Test Point and Wiring Color Codes
LCD Display Module
DC Power Supply Acceptable Levels
10.5.3. I2C Bus
Touchscreen Interface
Function Control Socket Device
Sensor Assembly
Sync/Demodulator Assembly
Relay Board Control Devices
Nominal Measured Frequency
Opto Pickup Assembly
GFC Wheel Drive
Opto Pickup Board Nominal Output Frequencies
Pressure/Flow Sensor Assembly
Motherboard
10.5.8.1. A/D Functions
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Output Range Nominal Output Values Step Current
Analog Outputs Current Loop
Full Scale Output Voltage
Step Nominal Output Voltage
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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How Static Charges are Created
Static Generation Voltages for Typical Activities
Means of Generation
Device Range
How Electro-Static Charges Cause Damage
Sensitivity of Electronic Devices to Damage by ESD
Damage Susceptibility Voltage
Common Myths About ESD Damage
Basic Principles of Static Control
General Rules
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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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