Manual: NGA 2000 FID2 Hydrocarbon Analyzer Module SW 3.6-Rev A | Rosemount
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Loading...Rosemount Manual: NGA 2000 FID2 Hydrocarbon Analyzer Module SW 3.6-Rev A | Rosemount Manuals & Guides
Instruction Manual
760002-A
July 2002
Model NGA2000 FID2
Flame Ionization Detector Module
http://www.processanalytic.com
ESSENTIAL INSTRUCTIONS
READ THIS PAGE BEFORE PROCEEDING!
Rosemount Analytical designs, manufactures and tests its products to meet many national and
international standards. Because these instruments are sophisticated technical products, you
MUST properly install, use, and maintain them to ensure they continue to operate within their
normal specifications. The following instructions MUST be adhered to and integrated into your
safety program when installing, using, and maintaining Rosemount Analytical products. Failure to
follow the proper instructions may cause any one of the following situations to occur: Loss of life;
personal injury; property damage; damage to this instrument; and warranty invalidation.
• Read all instructions prior to installing, operating, and servicing the product.
• If you do not understand any of the instructions, contact your Rosemount Analytical representative
for clarification.
• Follow all warnings, cautions, and instructions marked on and supplied with the product.
• Inform and educate your personnel in the proper installation, operation, and maintenance of
the product.
• Install your equipment as specified in the Installation Instructions of the appropriate Instruc-
tion Manual and per applicable local and national codes. Connect all products to the proper elec-
trical and pressure sources.
• To ensure proper performance, use qualified personnel to install, operate, update, program, and
maintain the product.
• When replacement parts are required, ensure that qualified people use replacement parts specified by
Rosemount. Unauthorized parts and procedures can affect the product’s performance, place the safe
operation of your process at risk, and VOID YOUR WARRANTY. Look-alike substitutions may result
in fire, electrical hazards, or improper operation.
• Ensure that all equipment doors are closed and protective covers are in place, except when
maintenance is being performed by qualified persons, to prevent electrical shock and personal
injury.
The information contained in this document is subject to change without notice.
Teflon® is a registered trademark of E.I. duPont de Nemours and Co., Inc.
Kynar® is a registered trademark of Pennwalt, Inc.
Emerson Process Management
Rosemount Analytical Inc.
Process Analytic Division
1201 N. Main St.
Orrville, OH 44667-0901
T (330) 682-9010
F (330) 684-4434
e-mail: gas.csc@EmersonProcess.com
http://www.processanalytic.com
Model NGA2000 FID2
TABLE OF CONTENTS
PREFACE...........................................................................................................................................P-1
Definitions ...........................................................................................................................................P-1
Safety Summary .................................................................................................................................P-2
General Precautions For Handling And Storing High Pressure Gas Cylinders .................................P-5
Documentation....................................................................................................................................P-6
Compliances .......................................................................................................................................P-6
Glossary of Terms ............................................................................................................................P-7
1-0 DESCRIPTION AND SPECIFICATIONS..............................................................................1-1
1-1 Overview................................................................................................................................1-1
1-2 Typical Applications...............................................................................................................1-1
1-3 Theory of Technology............................................................................................................1-2
1-4 Gas Safety Features..............................................................................................................1-5
1-5 Fuel Gas Option ....................................................................................................................1-5
1-6 Specifications ........................................................................................................................1-7
a. General ...........................................................................................................................1-7
b. Physical...........................................................................................................................1-7
c. Gas Requirements ..........................................................................................................1-8
d. Gas Connections.............................................................................................................1-8
Instruction Manual
760002-A
July 2002
2-0 INSTALLATION ....................................................................................................................2-1
2-1 Unpacking..............................................................................................................................2-1
2-2 Assembly ...............................................................................................................................2-1
2-3 Location .................................................................................................................................2-1
2-4 Gases ....................................................................................................................................2-1
a. Overview .........................................................................................................................2-1
b. Connections ....................................................................................................................2-2
c. Gas Specifications ..........................................................................................................2-2
2-5 Electrical Connections ...........................................................................................................2-5
2-6 Analytical Leak Check ...........................................................................................................2-6
a. Flow Indicator Method.....................................................................................................2-6
b. Manometer Method.........................................................................................................2-6
c. Troubleshooting Leaks....................................................................................................2-6
2-7 Installation Guidelines ...........................................................................................................2-7
3-0 OPERATION .........................................................................................................................3-1
3-1 Overview................................................................................................................................3-1
3-2 Displays & Operating Keys....................................................................................................3-1
a. Menu Lines & Softkey Functionality................................................................................3-1
b. Common Function Keys..................................................................................................3-2
c. Entering & Changing Variables.......................................................................................3-3
d. Starting a Function..........................................................................................................3-3
e. Measure Mode Display ...................................................................................................3-4
f. Main Menu ......................................................................................................................3-4
Rosemount Analytical Inc. A Division of Emerson Process Management Contents i
Instruction Manual
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July 2002
3-3 Startup & Initialization............................................................................................................3-7
a. Flame Ignition..................................................................................................................3-9
b. Internal Pressure Settings...............................................................................................3-10
c. Binding ............................................................................................................................3-12
d. Optimization ....................................................................................................................3-12
e. Shut Down Procedure .....................................................................................................3-12
f. Safety System .................................................................................................................3-13
3-4 Routine Operation .................................................................................................................3-14
3-5 Basic Controls, Setup and Status..........................................................................................3-15
a. Analyzer Channel Status ................................................................................................3-15
b. Single Component Display..............................................................................................3-15
c. Multi Component Display ................................................................................................3-16
3-6 Basic Controls .......................................................................................................................3-17
3-7 Display Controls ....................................................................................................................3-18
3-8 Analyzer And I/O, Expert Controls And Setup.......................................................................3-19
a. Range Settings................................................................................................................3-21
b. Physical Measurements..................................................................................................3-21
c. Concentration Alarms .....................................................................................................3-22
d. Linearization Parameters ................................................................................................3-23
e. Linearization Functions ...................................................................................................3-24
f. Response Time ...............................................................................................................3-26
g. Automatic Range Change...............................................................................................3-27
h. Display Units ...................................................................................................................3-28
i. Physical Measurements & Pressure Limits ....................................................................3-29
j. Single Component Display Parameters ..........................................................................3-30
k. Configuration Storage .....................................................................................................3-31
3-9 Calibration Methods...............................................................................................................3-32
a. Overview .........................................................................................................................3-32
b. Basic Controls Calibration...............................................................................................3-32
c. Expert Controls Calibration .............................................................................................3-32
d. System Calibration And Setup ........................................................................................3-32
3-10 Calibration Setup ...................................................................................................................3-33
a. Gas List ...........................................................................................................................3-33
b. Response Factor.............................................................................................................3-33
c. Calibration Parameters ...................................................................................................3-34
3-11 Basic Controls Calibration .....................................................................................................3-35
3-12 Expert Controls Calibration....................................................................................................3-36
a. Calibration Results..........................................................................................................3-37
b. Calibration Factors..........................................................................................................3-38
c. Calibration Details ...........................................................................................................3-39
3-13 System & Network I/O Module Controls (Setup) – System SIO............................................3-40
a. System SIO .....................................................................................................................3-40
b. Analog Output Setup.......................................................................................................3-41
c. Serial Interface Setup .....................................................................................................3-44
d. Relay Outputs Setup.......................................................................................................3-45
3-14 System & Network I/O Module Controls (Setup) – System DIO ...........................................3-47
3-15 System Configuration and Diagnostics .................................................................................3-48
a. Diagnostic Menus............................................................................................................3-49
b. Analyzer Module Diagnostics..........................................................................................3-50
c. Load/Save Module Configuration....................................................................................3-55
d. Date and Time.................................................................................................................3-56
e. Security Codes................................................................................................................3-57
f. System Reset..................................................................................................................3-58
g. System Tag .....................................................................................................................3-58
Model NGA2000 FID2
ii Contents Rosemount Analytical Inc. A Division of Emerson Process Management
Model NGA2000 FID2
4-0 MAINTENANCE AND SERVICE ..........................................................................................4-1
4-1 Overview................................................................................................................................4-1
4-2 Disassembly ..........................................................................................................................4-2
4-3 Fuses .....................................................................................................................................4-2
4-4 Burner Block Removal And Installation .................................................................................4-4
4-5 Burner Startup And Troubleshooting.....................................................................................4-4
4-6 Maintenance Schedule ..........................................................................................................4-8
5-0 REPLACEMENT PARTS ......................................................................................................5-1
5-1 Matrix .....................................................................................................................................5-1
5-2 Replacement Parts ................................................................................................................5-2
6-0 RETURN OF MATERIAL ......................................................................................................6-1
6-1 Return Of Material .................................................................................................................6-1
6-2 Customer Service ..................................................................................................................6-1
6-3 Training..................................................................................................................................6-1
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July 2002
Rosemount Analytical Inc. A Division of Emerson Process Management Contents iii
Instruction Manual
760002-A
July 2002
Figure 1-1. Flame Ionization Detection Technology.................................................................. 1-1
Figure 1-2. FID2 Analyzer Flow Diagram .................................................................................. 1-3
Figure 1-3. FID2 Wiring Diagram............................................................................................... 1-4
Figure 2-1. FID2 Outline and Mounting Dimensions ................................................................. 2-3
Figure 2-2. FID2 Rear Panel ..................................................................................................... 2-4
Figure 2-3. FID2 Front Panel.................................................................................................... 2-5
Figure 2-4. Leak Test - Flow Indicator Method.......................................................................... 2-6
Figure 2-5. Leak Test - Manometer Method.............................................................................. 2-6
Figure 3-1. Measure Mode Display ........................................................................................... 3-1
Figure 3-2. The Display Screen................................................................................................. 3-3
Figure 3-3. Changing Variables................................................................................................. 3-3
Figure 3-4. Function Confirmation Display ................................................................................ 3-3
Figure 3-5. Main Menu .............................................................................................................. 3-4
Figure 3-6. Main Menu Sub Menus ........................................................................................... 3-5
Figure 3-7. Module Manufacturing Data Displays ..................................................................... 3-6
Figure 3-8. Startup Display........................................................................................................ 3-7
Figure 3-9. Analyzer Diagnostics Menu .................................................................................... 3-8
Figure 3-10. Self Test Results Menu........................................................................................... 3-8
Figure 3-11. Light Flame Menu ................................................................................................... 3-9
Figure 3-12. Typical Module Response vs. Sample Pressure Setting ....................................... 3-10
Figure 3-13. Typical Module Response vs. Fuel Pressure Setting ............................................ 3-10
Figure 3-14. Typical Module Response vs. Burner Air Pressure Setting ................................... 3-11
Figure 3-15. Current Measurement Parameters Menu ............................................................. 3-15
Figure 3-16. Single Component Display.................................................................................... 3-15
Figure 3-17. Multi Component Display ...................................................................................... 3-16
Figure 3-18. Basic Controls Menu ............................................................................................. 3-17
Figure 3-19. Display Controls Menu .......................................................................................... 3-18
Figure 3-20. Analyzer and I/O Expert Controls and Setup Menu.............................................. 3-19
Figure 3-21. Analyzer and I/O Expert Controls and Setup Menu - Sub Menus ........................ 3-19
Figure 3-22. Expert Controls Menu ........................................................................................... 3-20
Figure 3-23. Range Settings Menu ........................................................................................... 3-21
Figure 3-24. Physical Measurements........................................................................................ 3-21
Figure 3-25. Concentration Alarm Setup Menu......................................................................... 3-22
Figure 3-26. Gas Measurement Parameters Menu................................................................... 3-23
Figure 3-27. Linearization Parameters Menu ............................................................................ 3-23
Figure 3-28. Linearity Coefficients Menu................................................................................... 3-23
Figure 3-29. Linearization Functions Menu ............................................................................... 3-24
Figure 3-30. Polynomial Setup Menu ........................................................................................ 3-24
Figure 3-31. Gas Concentrations Menu .................................................................................... 3-24
Figure 3-32. Midpoint Correction Setup Menu .......................................................................... 3-25
Figure 3-33. Response time/delay Parameters......................................................................... 3-26
Figure 3-34. Automatic Range Control Menu............................................................................ 3-27
Figure 3-35. Actual Switch Levels Menu ...................................................................................... 3-27
Figure 3-36. Display Units Menu ............................................................................................... 3-28
Figure 3-37. Physical Measurements Menu.............................................................................. 3-29
Figure 3-38. Pressure Limits Menu ........................................................................................... 3-29
Figure 3-39. Temperature Limits Menu ..................................................................................... 3-29
Figure 3-40. Physical Measurement Parameters (Temperature Limits) Menu ......................... 3-29
Figure 3-41. Displayed Parameters Menu................................................................................. 3-30
Figure 3-42. Store/Restore User Settings Menu ....................................................................... 3-31
Model NGA2000 FID2
LIST OF ILLUSTRATIONS
iv Contents Rosemount Analytical Inc. A Division of Emerson Process Management
Model NGA2000 FID2
Figure 3-43. Analyzer Manufacturing Data Menu...................................................................... 3-31
Figure 3-44. Store Historical Data Menu ................................................................................... 3-31
Figure 3-45. Calibration Gas List Menu..................................................................................... 3-33
Figure 3-46. Calibration Parameters Menu ............................................................................... 3-34
Figure 3-47. Analyzer Zero Menu.............................................................................................. 3-35
Figure 3-48. Expert Controls Menu ........................................................................................... 3-36
Figure 3-49. Zero/Span Calibration Menu ................................................................................. 3-36
Figure 3-50. Analyzer Zero Menu.............................................................................................. 3-36
Figure 3-51. Zero/Span Calibration Menu ................................................................................. 3-37
Figure 3-52. Zero/Span Diagnostic Data Menu......................................................................... 3-37
Figure 3-53. Calibration Factors Menu...................................................................................... 3-38
Figure 3-54. Range Factors Menu ............................................................................................ 3-38
Figure 3-55. Range Factors Manufacturer Settings Display ..................................................... 3-38
Figure 3-56. System & Network I/O Module Controls Menu ..................................................... 3-40
Figure 3-57. System SIO Module Menu .................................................................................... 3-40
Figure 3-58. Analog Output Setup Menu................................................................................... 3-41
Figure 3-59. Analyzer Modules Menu ....................................................................................... 3-41
Figure 3-60. Signals Menus....................................................................................................... 3-41
Figure 3-61. Output Signal If Assigned Module Fails Menu...................................................... 3-42
Figure 3-62. Special Scaling for Concentration Signal Menu.................................................... 3-43
Figure 3-63. Analog Output Updates Per Second Menu........................................................... 3-43
Figure 3-64. Serial Interface Setup Menu ................................................................................. 3-44
Figure 3-65. AK Protocol Definitions Menu ............................................................................... 3-44
Figure 3-66. Relay Output Setup Menu..................................................................................... 3-45
Figure 3-67. Relay Output Setup - Choose Source Module Menu............................................ 3-45
Figure 3-68. Relay Output Setup - Choose Signal Menu (Screen 1 of 3)................................. 3-46
Figure 3-69. Relay Output Setup - Choose Signal Menu (Screen 2 of 3)................................. 3-46
Figure 3-70. Relay Output Setup - Choose Signal Menu (Screen 3 of 3)................................. 3-46
Figure 3-71. System DIO Module Menu.................................................................................... 3-47
Figure 3-72. System Configuration and Diagnostics Menu - Sub Menus ................................. 3-48
Figure 3-73. Diagnostics Menus................................................................................................ 3-49
Figure 3-74. Diagnostics Menus – Analyzer Diagnostics Menu................................................ 3-50
Figure 3-75. Analyzer Diagnostics – Power Supply Voltages Menu ......................................... 3-50
Figure 3-76. Analyzer Diagnostics – Primary Variable Parameters Menu................................ 3-50
Figure 3-77. Analyzer Diagnostics – Physical Measurement Parameters Menu (Scrn 1 of 2). 3-51
Figure 3-78. Analyzer Diagnostics – Physical Measurement Parameters Menu (Scrn 2 of 2). 3-51
Figure 3-79. Analyzer Diagnostics – Pressure Limits Menu ..................................................... 3-51
Figure 3-80. Analyzer Diagnostics – Temperature Limits Menu ............................................... 3-51
Figure 3-81. Analyzer Diagnostics – Temperature Control Parameters Menu ......................... 3-52
Figure 3-82. Analyzer Diagnostics – Miscellaneous Control Parameters Menu ....................... 3-52
Figure 3-83. Miscellaneous Control Parameters – Pressure Settings Menu ............................ 3-52
Figure 3-84. Analyzer Diagnostics – Trend Display Control Menu ........................................... 3-53
Figure 3-85. Analyzer Diagnostics – Auto Ignition Parameters Menu ...................................... 3-53
Figure 3-86. Analyzer Diagnostics – Self Test Results Menu ................................................... 3-53
Figure 3-87. Analyzer Diagnostics – Software Diagnostics Menu ............................................ 3-54
Figure 3-88. Analyzer Diagnostics – Analyzer Starting Up Menu ............................................. 3-54
Figure 3-89. System Configuration and Diagnostics - Load/Save Configuration Menu............ 3-55
Figure 3-90. System Configuration and Diagnostics - Date and Time Menu............................ 3-56
Figure 3-91. System Configuration and Diagnostics - Security Codes Menu ........................... 3-57
Figure 3-92. System Configuration and Diagnostics - System Reset Menu ............................. 3-58
Figure 4-1. Location of Major Components ............................................................................... 4-1
Figure 4-2. Removal of FID2 Cover .......................................................................................... 4-2
Figure 4-3. Main Power Fuse Location ..................................................................................... 4-3
Figure 4-4. Fuse Locations on Module Board ........................................................................... 4-3
Instruction Manual
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July 2002
Rosemount Analytical Inc. A Division of Emerson Process Management Contents v
Instruction Manual
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July 2002
Figure 4-5. FID2 – Exploded View ............................................................................................ 4-5
Figure 4-6. Removal of Oven Cover.......................................................................................... 4-6
Figure 4-7. Burner Block -Exploded View ................................................................................. 4-7
Figure 4-8. Burner ..................................................................................................................... 4-8
Table 1-1. Gas Flow Rates ..................................................................................................... 1-5
Table 1-2. Analyzer Characteristics Relative to Fuel Gas ...................................................... 1-6
Table 2-1. Gas Supply Pressures ........................................................................................... 2-4
Table 3-1. Factory Defaults for Internal Pressures ............................................................... 3-11
Table 3-2. Calibration Gas HC Response Factors ............................................................... 3-33
Model NGA2000 FID2
LIST OF TABLES
vi Contents Rosemount Analytical Inc. A Division of Emerson Process Management
Model NGA2000 FID2
The purpose of this manual is to provide information concerning the components,
functions, installation and maintenance of the NGA2000 FID2 and the System Accessories
of the NGA 2000 System.
Some sections may describe equipment not used in your configuration. The user should
become thoroughly familiar with the operation of this module before operating it. Read
this instruction manual completely.
The following definitions apply to DANGERS, WARNINGS, CAUTIONS and NOTES found throughout
this publication.
Instruction Manual
760002-A
July 2002
PREFACE
DEFINITIONS
DANGER .
Highlights the presence of a hazard which will cause severe personal injury, death, or substantial
property damage if the warning is ignored.
WARNING .
Highlights an operation or maintenance procedure, practice, condition, statement, etc. If not
strictly observed, could result in injury, death, or long-term health hazards of personnel.
CAUTION.
Highlights an operation or maintenance procedure, practice, condition, statement, etc. If not
strictly observed, could result in damage to or destruction of equipment, or loss of effectiveness.
NOTE
Highlights an essential operating procedure,
condition or statement.
Rosemount Analytical Inc. A Division of Emerson Process Management Preface P-1
Instruction Manual
760002-A
July 2002
Model NGA2000 FID2
SAFETY SUMMARY
If this equipment is used in a manner not specified in these instructions, protective systems may be
impaired.
AUTHORIZED PERSONNEL
To avoid explosion, loss of life, personal injury and damage to this equipment and on-site property,
all personnel authorized to install, operate and service the this equipment should be thoroughly
familiar with and strictly follow the instructions in this manual. SAVE THESE INSTRUCTIONS.
DANGER.
ELECTRICAL SHOCK HAZARD
Do not operate without doors and covers secure. Servicing requires access to live parts which can
cause death or serious injury. Refer servicing to qualified personnel. For safety and proper performance this instrument must be connected to a properly grounded three-wire source of power.
WARNING .
POSSIBLE EXPLOSION HAZARD
This equipment is used in the analysis of sample gases which may be flammable, and the burner
fuel used in the ionization process IS flammable. A system of intrinsically safe electronics and an
explosion proof tower are used to prevent any ignition of a flammable gas leak. For this to be effective, the module MUST be placed in a well-ventilated area, with unobstructed air flow around it.
DO NOT place it within another enclosure without assuring this ventilation.
DO NOT obstruct the vent holes on the top and sides of the module.
DO NOT place the FID module within another enclosure unless the latter has a guaranteed air circulation such as to dilute a worst case fuel or sample leak below 25% of the LEL. Doing so will negate the safety features and may result in an explosion, serious injury, property damage and death.
WARNING .
FLAMMABLE SAMPLES
Consult the factory if flammable samples will be measured.
P-2 Preface Rosemount Analytical Inc. A Division of Emerson Process Management
Model NGA2000 FID2
Tampering or unauthorized substitution of components may adversely affect safety of this product.
Use only factory documented components for repair.
Do not place hands or fingers in the Platform front handles when front panel is open. Dropping the
front panel of the Platform while hand or fingers are inside either handle can cause serious injury.
Ensure that all gas connections are made as labeled and are leak free. Improper gas connections
could result in explosion or death.
Instruction Manual
760002-A
July 2002
WARNING.
PARTS INTEGRITY
WARNING.
HAND INJURY HAZARD
WARNING.
POSSIBLE EXPLOSION HAZARD
WARNING.
POSSIBLE EXPLOSION HAZARD
Protection against explosion depends upon a special fuel flow restrictor in the fuel inlet fitting. DO
NOT REMOVE THE FUEL INLET RESTRICTOR. Use the correct fuel flow restrictor for the fuel being
used. Do not use 100% hydrogen fuel in a 40% H2/60% He configured FID module. Replace with
factory supplied fitting only.
CAUTION .
PRESSURIZED GAS
This module requires periodic use of pressurized gas. See General Precautions for Handling and
Storing High Pressure Gas Cylinders, page P-5.
CAUTION .
OVERBALANCE HAZARD
This analyzer module may tip instrument over if it is pulled out too far and the Platform is not properly supported.
Rosemount Analytical Inc. A Division of Emerson Process Management Preface P-3
Instruction Manual
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July 2002
CAUTION.
CONTROLLED ENVIRONMENT
This equipment is for use in a controlled environment. Refer to Section 1-6 Specifications (page 1-
7) in this manual for environmental conditions.
CAUTION.
HOT OVEN COMPONENTS
The oven and sample manifold are controlled to 80°C. Allow the analyzer to cool down before
touching any of these components.
CAUTION.
OVER-VOLTAGE SPIKING
If this analyzer module is used with a non-Rosemount Analytical power supply, adding Rosemount
Analytical PN 903341 Current Protector in series with the 24V positive power line will prevent overvoltage spiking and resultant fuse blowing when powering up the instrument.
Model NGA2000 FID2
CAUTION .
STATIC ELECTRICITY
Circuit boards in this instrument are static-sensitive. Take all static precautions when handling the
circuit boards
NOTE
This Analyzer Module is completely leak-tested at the factory for gas leakage. The user is responsible for testing for leakage at the inlet and outlet fittings on the rear panel (with a test procedure
chosen by the user). The user is also responsible for leak-testing periodically and if any internal
pneumatic components are adjusted or replaced. See leak test instructions in Section 2-6 on page
2-6.
P-4 Preface Rosemount Analytical Inc. A Division of Emerson Process Management
Instruction Manual
760002-A
Model NGA2000 FID2
July 2002
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
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.
°
F (52°C). A flame should never be
Rosemount Analytical Inc. A Division of Emerson Process Management Preface P-5
Instruction Manual
9
6
760002-A
July 2002
Model NGA2000 FID2
DOCUMENTATION
The following NGA2000 FID2 instruction materials are available. Contact Customer Service Center or the
local representative to order.
760002 Instruction Manual (this document)
COMPLIANCES
This product may carry approvals from several certifying agencies, like The Canadian Standards
Association (CSA), which is also an OSHA accredited Nationally Recognized Testing Laboratory (NRTL),
and LCIE - a French Notified Body.
The certification marks appear on the product name-rating plate.
®
NRTL /C
Rosemount Analytical Inc. has satisfied all obligations from the European Legislation to harmonize the
product requirements in Europe.
This product complies with the standard level of NAMUR EMC. Recommendation (May 1993).
LCIE 98 ATEX 6004 X
EEx d ib IIB (+H
0°C Ta +40°C
Date of Manufacture:
0081
) T6
2
II 2 G
NAMUR
This product satisfies all obligations of all relevant standards of the EMC framework in Australia and New
Zealand.
N
P-6 Preface Rosemount Analytical Inc. A Division of Emerson Process Management
Model NGA2000 FID2
GLOSSARY OF TERMS
Analyzer Module
The module that contains all sensor/detector components for development of a Primary Variable signal;
includes all signal conditioning and temperature control circuitry.
Backplane
The interconnect circuit board which the Controller Board, Power Supply, Analyzer Module power and
network cables, I/O Modules and Expansion Modules plug into.
Control Module
The Operator Interface plus the Controller Board.
Controller Board
The computer board that serves as the Network Manager and operates the Display and Keypad.
Distribution Assembly
Instruction Manual
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July 2002
The Backplane and the card cages that hold I/O and Expansion Modules.
Expansion Module
A circuit board that plugs into the Backplane from the front of the Platform and performs special features
not related to I/O functions.
I/O Module
A circuit board that plugs into the Backplane from the rear of the Platform. Has a connector terminal for
communication with external data acquisition devices and provides an input/output function.
Operator Interface
The Display and Keyboard.
Platform
Any workable collection of the following: Controller Board, Power Supply, Distribution Assembly, Enclosure
and Operator Interface.
Power Supply
Any of a variety of components that provides conditioned power to other NGA 2000 components, from the
Power Supply Board that plugs into the front of the Backplane in a stand-alone instrument to several larger
ones that can power larger collections of modules and components.
Primary Variable
The measured species concentration value from an Analyzer Module.
Secondary Variable
Data placed on the network by a module regarding current status, e.g., sample flow, source voltage and
other diagnostic information.
Rosemount Analytical Inc. A Division of Emerson Process Management Preface P-7
Instruction Manual
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July 2002
Softkeys
The five function keys located below the front panel display; they assume the function displayed directly
above each on the display, a function dictated by software.
System
Any collection of Analyzer Module(s), Platform(s), I/O Module(s) and Expansion Module(s).
Model NGA2000 FID2
P-8 Preface Rosemount Analytical Inc. A Division of Emerson Process Management
Model NGA2000 FID2
+
+++
+
DESCRIPTION AND SPECIFICATIONS
1-1 OVERVIEW
Instruction Manual
760002-A
July 2002
SECTION 1
This manual describes the Flame Ionization
Detector (FID2) Analyzer Module of
Rosemount Analytical's NGA 2000 Series of
gas analysis components.
The FID2 Analyzer Module is designed to use
a flame ionization technique to measure the
total concentration of hydrocarbon (including
certain oxygenated hydrocarbons)
components within the sample stream.
The entire FID2 Analyzer Module is designed
as a module with electrical connections at its
front, and gas connections made from the
rear. All electronics relative to sample control
and signal conditioning are included in this
module.
Igniter
Positive
Electrode
1-2 TYPICAL APPLICATIONS
Typical applications for the FID2 Analyzer
Module include:
• The monitoring of atmospheric air for low-
level total hydrocarbon contaminants
• Determining the total hydrocarbon content of
exhaust emissions from internal combustion
engines
• Carbon bed monitoring
Determining the total hydrocarbons content of
process and product gases from air
separation plants.
Exhaust
-
-
Ions
-
-
-
Negative
Electrode
Flame
Air
Fuel + Sample
Figure 1-1. Flame Ionization Detection Technology
Rosemount Analytical Inc. A Division of Emerson Process Management Description and Specifications 1-1
Instruction Manual
760002-A
July 2002
Model NGA2000 FID2
1-3 THEORY OF TECHNOLOGY
This Analyzer Module uses the flame
ionization method of detection. The sensor is
a burner in which a regulated flow of gas
sample passes through a flame sustained by
regulated flows of a fuel gas (a
hydrogen/diluent mixture) and air.
Within the flame, the hydrocarbon
components of the sample stream undergo a
complex ionization that produces electrons
and positive ions. Polarized electrodes collect
these ions, causing current to flow through an
electronic measuring circuit.
The ionization current is proportional to the
rate at which carbon atoms enter the burner,
and is therefore a measure of the
concentration of hydrocarbons in the sample.
The gas pressures are continuously
monitored and controlled through electronic
pressure transducers.
The measurement of concentration is placed
on the network, where it can be shown on the
Platform Display or on other data acquisition
devices.
1-2 Description and Specifications Rosemount Analytical Inc. A Division of Emerson Process Management
Model NGA2000 FID2
FID EXHAUST
FLOW CONTROL
MANIFO LD ASSEMBLY
659043
FTG, BULKHEAD
W/RESTRICTOR
1/4T-1/8MP T
FTG, MALE CONN
1/4T-1/8MP T
008435
W/FILTER 017154
REAR PANEL5
SAMPLE IN
FTG, BULKHEAD
SAMPLE OUT
FTG, MALE CONN
1/4T-1/8MP T
008435
FUEL IN
AIR IN
FUEL FLOW
CONTROL
FLUISTER
VALVE
659541
2
AIR FLOW
CONTROL
FLUISTER
VALVE
659541
3
Instruction Manual
760002-A
July 2002
4
4
MANIFO LD
SENSOR, AIR
PRESSURE
0-30 PSIG
659498
SENSOR, FUEL
PRESSURE
0-30 PSIG
659498
BACK PRESSURE
REGULATOR
659063
FTG, ELBOW
1/16T-1/8M PT
904582
(3)
659072
SENSOR, SAMPLE
PRESSURE
0-15 PSIG
659497
659037
FTG, UNION
1/16T
818270
FTG ASSEMBLY
659173
FTG, FLBOW
1/4T-1/4MP T
902147
659038
FTG, UNION
1/16T
818270
FTG, UNION
1/16T
818270
FTG, UNION
1/16T
818270
FUEL
CAPILLAR Y
AIR
CAPILLAR Y
SAMPLE
CAPILLAR Y11
FLAME
IONIZATI ON
DETECTOR
(FID)
5 REAR PANEL IS INCLUDED IN FLOW CONTROL MANIFOLD ASSEMBLY 659043.
4 MANIFO LD ASSEMBLY 659043 MUST BE RETURNED TO FACTORY WHEN REP LACMENT OF AIR AN D/OR FUEL FLOW FLU ISTER VALVES IS R EQUIRED.
3 15 PSI 2 L/MIN.: 659178
2 PSI 1 L/MIN.: 65907 3
NO RES TRICTOR: 008435
2 STD MIXED FUEL: 659514
1 STD MIXED FUEL: 658146 FUE L CAPILLARY, 65 9031 SAMPLE CA PILLARY
Figure 1-2. FID2 Analyzer Flow Diagram
Rosemount Analytical Inc. A Division of Emerson Process Management Description and Specifications 1-3
Instruction Manual
760002-A
July 2002
Model NGA2000 FID2
REAR SECTION OF ANAL YZER FRONT SECTION OF ANALYZER
FUEL
FLOW CONTROL
FLUISTOR
AIR
659070
FLAME
THERMISTOR
BURNER
BLOCK HEATER
2
J1
FUEL
PRESSURE
SENSOR
0-30 PSIG
J12 J13J3 J11 J4
SAMPLE
RESSURE
SENSOR
0-15 PSIG
J6
POLARIZED
COLLECTOR
1
CABLE
CONTINUITY
FLOW CONTROL
NCNC
J7J2
J9
J16
J8 J5
IGNITER
BURNER BLOCK
2
AIR
FLUISTOR
PRESSURE
SENSOR
0-30 PSIG
INTRINSICALL Y SAFE BOARD
POLARIZED
COLLECTOR
1
RTD
BURNER BLOCK ASSEMBLY
1
CONNECTORS J5 AND J6 ON INTRINSICALLY SAFE BOARD ARE INTERCHANGEABLE.
FACTORY REPLACEMENT.
2
MIDDLE
SECTION OF
ANALYZER
THIS SECTION OF INTRINSICALLY
SAFE BOARD CONTAINS CURRENT-
LIMITING RESISTORS
J15
J8J11
NCNC
THIS SECTION OF
INTRINSICALLY SAFE BOARD
CONTAINS ±15 SUPPLIES,
+90V SUPPLY AND LOW-
LEVEL ANALOG CIRCUITS
J15
J15 J14 J25
MODULE BO ARD 65 9060
J6 J5
COMPUTER BOARD
658350
J7
J14 J17
J1J4
J2
J3
J22
J24
J22
LON1
LON2
24V POWER
Figure 1-3. FID2 Wiring Diagram
1-4 Description and Specifications Rosemount Analytical Inc. A Division of Emerson Process Management
Model NGA2000 FID2
Instruction Manual
760002-A
July 2002
1-4 GAS SAFETY FEATURES
The FID2 module is divided into two parts - a
pneumatic section and an electronic section.
The two sections are separated by a pair of
solid partitions to prevent any leak of gas in
the pneumatic section from reaching the
electronics. The electrical connections into
the pneumatic section are made intrinsically
safe by a series of over-voltage protection
devices and current limiting resistors. The
burner itself is an explosion-proof assembly.
The combination of these two techniques
allows the analyzer to meet international
safety standards without the use of an
expensive continuous-dilution purge - but
ONLY when it is installed in a general purpose
area with good air circulation.
WARNING
POSSIBLE EXPLOSION HAZARD
Hydrocarbon concentration(s) in the sample gas must be below the Lower Explosion Limit (LEL).
The FID2 is designed to use 40% H
fuel at a maximum inlet pressure of 3446 hPagauge (50 psig).
1
WARNING
POSSIBLE EXPLOSION HAZARD
Protection against explosion depends
upon a special fuel flow restrictor at the
fuel inlet. DO NOT REMOVE THE FUEL INLET RESTRICTOR.
1-5 FUEL GAS OPTION
The standard FID2 Analyzer Module requires
40% hydrogen/60% helium burner fuel gas.
For monitoring internal combustion exhaust
emissions or other sample gas with varying
oxygen content, mixed fuel is preferable. In
fact, a hydrogen/helium mixture is more
desirable than a hydrogen/nitrogen mixture.
With this type of sample, the use of mixed fuel
gas minimizes the error introduced by oxygen
synergism.
/60% He
2
All tubing ahead of the burner is rigid metallic
tubing assembled with ferrule/nut type
compression fittings. However, should an
internal fuel leak occur, a worst-case leak
would be dissipated below 25% of the LEL of
hydrogen by natural dilution outside of the
pneumatic section before it could be ignited
by any external ignition source, and there is
nothing within the pneumatic section to ignite
it.
Changes in the burner air flow rate have little
effect on signal strength. For a given flow, the
signal can be optimized by adjusting the fuel
flow rate.
Refer to Table 1-1. Gas Flow Rates below.
GAS FLOW MIXED FUEL
UEL
F
AMPLE
S
IR
A
100 cc/min
10 cc/min
400 cc/min
Table 1-1. Gas Flow Rates
1
The fuel restrictor is part of the Flow Control Manifold
Assembly, which is specific to an application.
Rosemount Analytical Inc. A Division of Emerson Process Management Description and Specifications 1-5
Instruction Manual
760002-A
July 2002
Model NGA2000 FID2
ANALYZER CHARACTERISTICS
Full Scale Sensitivity
Fuel Consumption
Operating Setting For Sample Pressure Regulator
Table 1-2. Analyzer Characteristics Relative to Fuel Gas
40% H
4 ppm, CH
/60% He
2
to <1%, CH
4
100 to 110 cc/min
345 hPa-gauge (5 psig)
4
1-6 Description and Specifications Rosemount Analytical Inc. A Division of Emerson Process Management
Model NGA2000 FID2
1-6 SPECIFICATIONS
a. General
Measurement Species .................. Total hydrocarbons
Range H
Repeatability.................................. ≤1% of fullscale at a constant temperature, sample flow and fuel,
Min. Detectable Level ................... 0.04 ppm H
Noise ............................................ <1% of fullscale, peak to peak
Linearity ........................................ ≤ ±1% of fullscale
Response Time ............................ ≤1 sec. for bypass flow rate of 500 cc/min (for a sample change at
Zero Drift ....................................... ≤ ±1% of fullscale/24 hours at constant temperature, hydrocarbon
Span Drift ...................................... ≤ ±1% of fullscale/24 hours at constant temperature, hydrocarbon
Effect of Temperature ................... ≤ ±2% of fullscale for any temperature change of 10°C and rate of
Operating Temperature ................ 41°F to 104°F (5°C to 40°C)
Operating Humidity........................ <95% relative humidity, non-condensing
Power Requirements .................... +24 VDC ±5%, 120 W max.. direct to analyzer module;
/He fuel
2
Low range.............................. 0 to 4 ppm CH
High range ............................. 0 to 50 ppm CH4, through 0 to <5% CH
Ripple and Noise ................... <100 mV peak to peak
Line and Load Regulations.... <±1%
Instruction Manual
760002-A
July 2002
, through 0 to 1% CH
4
burner air and sample pressure
/He fuel – methane equivalent
2
the rear panel connector of the instrument)
concentration of supply gases, sample flow and fuel, burner air and
sample pressure
concentration of supply gases, sample flow and fuel, burner air and
sample pressure
change less than 10°C/hour
4
4
b. Physical
Case Classification........................ General purpose for installation in weather-protected area
Dimensions ................................... See Outline and Mounting Dimensions, Figure 2-1, on page 2-3
Weight .......................................... 10.43 kg (23 lbs.)
Mounting ....................................... Inside a Platform or custom-installed in a panel
Max. Length of LON Cable ........... 1600m (1 mile) between Analyzer Module and Platform
Rosemount Analytical Inc. A Division of Emerson Process Management Description and Specifications 1-7
Instruction Manual
760002-A
July 2002
c. Gas Requirements
Sample .......................................... Non-flammable, below 100% LEL
Temperature ......................... 32°F to 248°F (0°C to 120°C), <20°C variance/24 hours, <10°C
Flow Rate............................... 0.5 to 2.0 ml/min.
Supply Pressure .................... 483 to 1035 hPa-gauge (7 to 15 psig)
Particles ................................. Filtered to <2 microns
Dewpoint ............................... <45°C
Materials in contact
with Sample ................ Stainless steel, Teflon, glass-filled Teflon, Viton
Fuel Gas ....................................... Premixed 40% hydrogen and 60% helium
Flow Rate............................... 75 to 110 ml/min.
THC ....................................... ≤0.5 ppm, CH
Supply Pressure .................... 3101 to 3450 hPa-gauge (45 to 50 psig)
Model NGA2000 FID2
variance/hour
4
WARNING.
POSSIBLE EXPLOSION HAZARD
DO NOT USE PURE HYDROGEN FUEL. An explosion resulting in severe personal injury or
death could occur. Also, each Analyzer Module is factory-configured for mixed, and cannot use the fuel for which it was not configured unless field reconfiguration is done.
Burner Air ...................................... Hydrocarbon-free grade air
Flow Rate............................... 350 to 400 ml/min.
THC ....................................... ≤ 0.1 ppm, CH
Supply Pressure .................... 1725 to 3450 hPa-gauge (25 to 50 psig)
d. Gas Connections
Sample In ...................................... 1/4” O.D. tube fitting
Burner Air In .................................. 1/4” O.D. tube fitting
Fuel In............................................ 1/4” O.D. tube fitting
Bypass Out.................................... 1/4” O.D. tube fitting
Burner Exhaust Out....................... 3/8” O.D. tube slip-fit connection, tygon or equivalent (this
connection shall slope downward 6° minimum from horizontal)
4
NOTE
The burner exhaust and bypass out shall be vented to atmospheric pressure and to a nonclassified location. .
See the Preface section of the Platform manual for specifications regarding Platform-related components
(e.g., case dimensions) and the I/O Module manual for specifications regarding I/O (e.g., relay outputs).
1-8 Description and Specifications Rosemount Analytical Inc. A Division of Emerson Process Management
Model NGA2000 FID2
Instruction Manual
760002-A
July 2002
SECTION 2
INSTALLATION
2-1 UNPACKING
When the FID2 Analyzer Module is received,
carefully examine the shipping carton and
contents for signs of damage. Immediately
notify the shipping carrier if the carton or
contents is damaged. Retain the carton and
packing material until all components
associated with the Analyzer Module are
operational.
2-2 ASSEMBLY
The FID2 analyzer module MUST NOT be
placed within a conventional NGA platform,
single module enclosure or dual module
enclosure since the latter would not allow free
flow of air around the module, thus violating
its safety certification. The enclosure is
designed so that this would be very hard to do
anyway.
There is a special platform specifically
designed to accept this module; consult the
factory for details.
2-3 LOCATION
WARNING.
POSSIBLE EXPLOSION HAZARD
Do not place the FID2 module within another enclosure unless the latter has a
guaranteed air circulation such as to dilute
a worst case fuel or sample leak below
25% of the LEL. Failure to will negate the
safety features and may result in explosion, serious injury, material damage and
death. Also, do not cover the vent holes
on the top and sides of the module.
Install the Analyzer Module in a clean,
weather-proofed, non-hazardous, vibrationfree location free from extreme temperature
variations. For best results, install the
Analyzer Module near the sample stream to
minimize sample transport time.
Operating ambient temperature is 5 °C to
40 °C, limited to temperature changes of less
than 10 °C/hr. Acceptable dew point range is
less than 95% relative humidity, but not in
excess of 40°C wet bulb temperature.
The cylinders of fuel, air, and calibration
gases should be located in an area of
relatively constant ambient temperature.
CAUTION .
PRESSURIZED GAS
See General Precautions for Handling and
Storing High Pressure Gas Cylinders, page
P5.
2-4 GASES
a. Overview
During normal operation, the Analyzer
Module requires fuel and air to maintain
the burner flame as well as suitable
standard gases for. Refer to the criteria
for selection of these gases in Section 24c on page 2-2.
After initial startup or after startup
following a prolonged shutdown, the
analyzer may display baseline drift for a
considerable period of time, particularly
on the most sensitive range.
Commonly, the drift is caused by small
amounts of organics (such as
hydrocarbons) in the inner walls of the
tubing in both the internal flow system and
the external gas supply system. Drift
results from any factor influencing the
equilibrium of these adsorbed
hydrocarbons, such as temperature or
pressure. Hydrocarbons adsorbed within
the analyzer in the gas passageways (or
Rosemount Analytical Inc. A Division of Emerson Process Management Installation 2-1
Instruction Manual
760002-A
July 2002
Model NGA2000 FID2
in the fuel or air lines) will elevate the
overall baseline.
Note that this type of drift occurs only
when the flame is burning. If drift occurs
when the flame is extinguished, the
electronic circuitry is at fault or the burner
or cabling is contaminated with a
conductive film. To minimize drift, use
clean fuel and air, keep the analyzer
clean, and locate the gas cylinders in an
area of relatively constant ambient
temperature.
The cylinders supplying all gases each
should be equipped with a clean,
hydrocarbon-free, two-stage regulator and
a shutoff valve.
All new external gas tubing (except for
SAMPLE BYPASS) is strongly
recommended, preferably pre-cleaned,
stainless steel, gas chromatograph-grade
tubing. Thoroughly clean before use (if a
hydrocarbon-based cleaning solvent such
as acetone is used, purge tubing with dry
nitrogen or helium for several minutes
before using.)
Gas line connections are compression
fittings. Do not use pipe thread tape on
such fittings.
Since the oxidation of hydrogen is
accompanied by the formation of water
vapor, the exhaust tubing always should
be slanted downward at least 6 degrees
from horizontal. Otherwise, water may
accumulate in the line, causing back
pressure and noisy readings, or may back
up in the line and flood the burner.
If the sample is toxic or noxious, or is to
be reclaimed, connect the Bypass outlet
to a suitable disposal system. Do not use
any device that may cause back pressure
in the line.
to appropriately labeled fittings on the rear
panel. All connections are 1/4-inch
ferrule-type compression fittings. Burner
exhaust and bypass must be vented at
atmospheric pressure to a non-classified
location in accordance with ANSI/NFPA-
496.
c. Gas Specifications
Fuel Gas — Standard analysis usually
requires mixed fuel, i.e., 40% (±2 %)
hydrogen and 60% helium. H
fuel is recommended over H
because of better linearity in
concentration output. Such blends are
supplied by many gas vendors specifically
for this use, with a guaranteed maximum
total hydrocarbon content of 0.5 ppm,
measured as methane. This specification
should be used when obtaining these
mixtures.
Burner Air — In order to ensure a low
background signal, hydrocarbon free
grade air with less than 1 ppm maximum
total hydrocarbon content is highly
recommended. An alternative source for
burner air and zero gas (see Calibration
Gases below) is a combination diaphragm
pump and heated palladium catalyst. This
process continuously removes moderate
amounts of hydrocarbons and carbon
monoxide from ambient air.
Calibration Gases — Calibration method
and gases depends on the type of fuel
gas used, the operating range, and the
desired measurement accuracy. In all
methods, zero and span gases are used,
and are introduced through the sample
inlet at the rear of the module.
Zero Gas It is recommended that the
gas should have a composition as close
to the background composition of the
sample as possible.
/He mixed
2
2/N2
fuel
b. Connections
Refer to Figure 2-2 on page 2-4.
Connect inlet and outlet lines for sample,
burner fuel and air, exhaust, and bypass
2-2 Installation Rosemount Analytical Inc. A Division of Emerson Process Management
Span Gas Span gas consists of a
specified concentration of methane and
other hydrocarbons in a background gas
such as nitrogen.
Model NGA2000 FID2
Instruction Manual
760002-A
July 2002
Sample Gas — Sample gas must be
nonflammable (below 100% of the
sample's LEL).
Flow Rate — The sample flow rate must
be between 0.5 L/min. and 2 L/min.
Pressure/Filtration — See Table 2-1 on
page 2-4 for input pressure specifications.
Noncompliance with these specifications
could cause over-pressure damage to the
module.
All internal pressure settings are preset at
the factory, but the operator should check
for accuracy. It is essential that the
4.3
[110]
8.2
[208]
sample be filtered for particulates
down to 0.1 microns. A suitable filter is
the Balston type 95S6 with 0.1 micron
filter element. It should normally be
replaced on a two week schedule,
depending on the sample.
Leak Test — The Analyzer Module is
completely tested at the factory for gas
leakage. The user is responsible for
testing for leakage at the inlet and outlet
fittings on the rear panel. The user is also
responsible for internal leak testing
periodically and if any internal pneumatic
components are adjusted or replaced
(with a test procedure chosen by the
user).
1.0
[25]
2.2
[55]
[23]
.6
[17]
.7
[20]
[16]
1.2
[31]
2.8
.8
[71]
2.9
[73]
22.6
[573]
.9
3.1
[78]
.8
[19]
[23]
.9
Figure 2-1. FID2 Outline and Mounting Dimensions
Rosemount Analytical Inc. A Division of Emerson Process Management Installation 2-3
Instruction Manual
760002-A
July 2002
MIXED
FUEL IN
AIR IN
Model NGA2000 FID2
BURNER EXHAUST
SAMPLE IN
SAMPLE BYPASS OUT
Figure 2-2. FID2 Rear Panel
Gas supply External Pressure Internal Pressure
Fuel
Burner air
Sample
50 – 55 psig
1035 - 2070 hPa
50 - 55 psig
1380 - 4140 hPa
5 - 10 psig
345 - 690 hPa
5 psig
345 hPa
15 psig
1035 hPa
5 psig
345 hPa
Table 2-1. Gas Supply Pressures
2-4 Installation Rosemount Analytical Inc. A Division of Emerson Process Management
Model NGA2000 FID2
Instruction Manual
760002-A
July 2002
2-5 ELECTRICAL CONNECTIONS
NOTE
Electrical installation must be in compliance with National Electrical Code
(NEC/NFPA 70) and/or any state or local
codes.
Two electrical connections are required on the
Analyzer Module: POWER and NETWORK.
See Figure 2-3 below. On the Analyzer
Module, two NETWORK connectors are
available, either of which is appropriate for: 1)
interconnection with the Back plane of the
Platform or 2) "daisy-chaining" with other NGA
2000 components, or 3) connection to a PC
via a suitable LONTALK adapter and software
such as the NGA DDE server and client.
Connect Analyzer Module POWER to Back
plane POWER or external 24 VDC power
source.
Connect the network cable to either the
NETWORK 1 or NETWORK 2 connection on
the Analyzer Module front panel, and the
NETWORK connection on the LON I/O
module if used with a Platform, or directly to a
computer using appropriate LONTALK
adapter hardware and software such as the
NGA DDE server. Connect the power cable to
both the Analyzer Module front panel and to a
24V 5A minimum power supply.
FUSE
Figure 2-3. FID2 Front Panel
Rosemount Analytical Inc. A Division of Emerson Process Management Installation 2-5
24V POWER
NETWORK
Instruction Manual
760002-A
July 2002
Model NGA2000 FID2
2-6 ANALYTICAL LEAK CHECK
The FID2 Analyzer Module is completely
tested at the factory for gas leakage. The user
is responsible for testing for leakage only at
the inlet and outlet fittings on the rear panel.
CAUTION
SENSOR PRESSURE
Do not expose the Sensor to pressure in
excess of 1.0 psig as this may cause damage.
a. Flow Indicator Method
Supply air or inert gas such as nitrogen,
at 1 psig (6.8 hPa), to the analyzer
through a flow indicator with a range of 0
to 250 cc/min. Install a shut-off valve at
the sample gas outlet. Set the flow rate to
125 cc/min.
b. Manometer Method
Install a water-filled U-tube manometer at
the sample gas outlet. Install a shut-off
valve at the sample gas inlet. Admit air or
inert gas to the inlet shut-off valve until
the analyzer is pressurized to
approximately 50 hPa. The water column
will be about 500 mm.
FID2 Analyzer Module
Inlet Outlet
Overpressure
approx. 50 hPa
N
2
1 psig
(6.9 kPa)
FID2 Analyzer Module
Inlet Outlet
Flow
Meter
Gas
Outlet
Figure 2-4. Leak Test - Flow Indicator
Method
Close the outlet shut-off valve and notice
that the flow reading drops to zero. If the
flow reading does not drop to zero, the
system is leaking and must be corrected
before the introduction of sample gas or
the application of power.
Water
N
2
Figure 2-5. Leak Test - Manometer Method
Close the inlet shut-off valve and,
following a brief period for pressure
equilibrium, verify that the height of the
water column does not drop over a period
of about 5 minutes. If the water column
height drops, the system is leaking and
must be corrected before the introduction
of any flammable sample gas or
application of power.
c. Troubleshooting Leaks
Liberally cover all fittings, seals, and other
possible sources of leakage with a
suitable leak test liquid such as SNOOP
(part 837801). Bubbling or foaming
indicates leakage. Checking for bubbles
will locate most leaks but could miss
some, as some areas are inaccessible to
the application of SNOOP. For positive
assurance that system is leak free,
perform one of the tests in Section 2-6
above.
2-6 Installation Rosemount Analytical Inc. A Division of Emerson Process Management
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