Emerson ROSEMOUNT NGA2000 HFID Instruction manual

Instruction Manual
760004-A
February 2002
Model NGA 2000 HFID
Heated 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 Instruction Manual and per applicable local and national codes. Connect all products to the
proper electrical 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 Atochem North America, Inc.
SNOOP is a registered trademark of NUPRO Co.
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
Instruction Manual
Model NGA 2000 HFID
760004-A
February 2002
TABLE OF CONTENTS
PREFACE...........................................................................................................................................1
Definitions ...........................................................................................................................................1
Safety Summary .................................................................................................................................2
General Precautions For Handling And Storing High Pressure Gas Cylinders .................................5
Documentation....................................................................................................................................6
Compliances .......................................................................................................................................6
Glossary of Terms ............................................................................................................................7
1.0
1-1
1-2
1-3
1-4
1-5
DESCRIPTION AND SPECIFICATIONS..............................................................................1-1
Overview................................................................................................................................1-1
Typical Applications...............................................................................................................1-1
Safety Gas Features..............................................................................................................1-1
Theory of Technology............................................................................................................1-1
Specifications ........................................................................................................................1-4
a. General ...........................................................................................................................1-4
b. Physical...........................................................................................................................1-4
c. Gas Requirements ..........................................................................................................1-5
d. Gas Connections.............................................................................................................1-6
2.0
2-1
2-2
2-3
2-4
2-5
2-6
2-7
INSTALLATION ....................................................................................................................2-1
Unpacking..............................................................................................................................2-1
Assembly ...............................................................................................................................2-1
Location .................................................................................................................................2-1
Gases ....................................................................................................................................2-1
a. Overview .........................................................................................................................2-1
b. Pneumatic Connections ..................................................................................................2-3
c. Specifications ..................................................................................................................2-3
Leak Test ...............................................................................................................................2-4
Electrical Connections ...........................................................................................................2-6
Installation Considerations Checklist.....................................................................................2-9
3.0
3-1
3-2
3-3
3-4
3-5
3-6
OPERATION .........................................................................................................................3-1
Overview................................................................................................................................3-1
Startup Procedure .................................................................................................................3-1
Binding...................................................................................................................................3-3
Calibration..............................................................................................................................3-4
Routine Operation .................................................................................................................3-5
Safety System........................................................................................................................3-5
4.0
4-1
4-2
MAINTENANCE AND SERVICE ..........................................................................................4-1
Overview................................................................................................................................4-1
Oven ......................................................................................................................................4-3
a. Removal ..........................................................................................................................4-3
b. Disassembly....................................................................................................................4-4
Burner ....................................................................................................................................4-6
a. Temperature Sensor .......................................................................................................4-6
b. RTD Detector ..................................................................................................................4-6
c. Igniter ..............................................................................................................................4-6
d. Flameout Sensor.............................................................................................................4-6
4-3
Rosemount Analytical Inc.
A Division of Emerson Process Management
Contents
i
Instruction Manual
760004-A
February 2002
4-4
4-5
4-6
4-7
4-8
4-9
4-10
4-11
ii
Model NGA 2000 HFID
Burner Internal Components .................................................................................................4-8
a. Disassembly of Burner/Thermal Block............................................................................4-8
b. Replacing Burner Jets.....................................................................................................4-9
c. Burner Jet Installation .....................................................................................................4-11
Thermal Block........................................................................................................................4-12
a. Sample RTD....................................................................................................................4-12
b. Cartridge Heater..............................................................................................................4-13
c. Thermostat ......................................................................................................................4-13
d. Sample Capillary .............................................................................................................4-13
Electronics Assembly ............................................................................................................4-14
a. Printed Circuit Boards .....................................................................................................4-15
b. Case Temperature Sensor..............................................................................................4-16
c. Case Pressure Purge Switch ..........................................................................................4-17
d. Preamp Assembly ...........................................................................................................4-18
Fan Assembly........................................................................................................................4-19
Flow Controller ......................................................................................................................4-20
DC Power Supply Module .....................................................................................................4-22
Front Panel Components.......................................................................................................4-23
a. LON/Power Module.........................................................................................................4-25
b. LED Indicator Assembly..................................................................................................4-25
c. Manual Ignite Toggle Switch...........................................................................................4-25
d. Burner Air Sensor............................................................................................................4-25
e. Fuel Sensor.....................................................................................................................4-25
f. Burner Air and Fuel Regulators ......................................................................................4-25
g. Purge Air Regulator ........................................................................................................4-26
h. Purge Air Flow Switch and Diffuser ................................................................................4-26
i. Burner Air Solenoid Valve...............................................................................................4-26
j. Air Ignite Restrictor..........................................................................................................4-26
Rear Panel Components .......................................................................................................4-27
a. Fuel In 2-Way Solenoid Valve.........................................................................................4-28
b. Burner Air In Filter ...........................................................................................................4-28
c. Heated Bypass Sample Out and Heated Sample In Restrictors ....................................4-28
d. Regulated Air In Check Valve .........................................................................................4-28
5.0
5-1
TROUBLESHOOTING ..........................................................................................................5-1
Troubleshooting Checklist .....................................................................................................5-1
a. Safety System .................................................................................................................5-1
b. Ignition.............................................................................................................................5-1
c. Drift..................................................................................................................................5-2
d. Noise ...............................................................................................................................5-2
6.0
6-1
6-2
6-3
6-4
REPLACEMENT PARTS ......................................................................................................6-1
Matrix .....................................................................................................................................6-1
General ..................................................................................................................................6-2
Pneumatics ............................................................................................................................6-2
Oven Components.................................................................................................................6-3
7.0
7-1
7-2
7-3
RETURN OF MATERIAL ......................................................................................................7-1
Return Of Material .................................................................................................................7-1
Customer Service ..................................................................................................................7-1
Training..................................................................................................................................7-1
8.0
APPENDIX A - MENU DISPLAYS........................................................................................8-1
Contents
Rosemount Analytical Inc.
A Division of Emerson Process Management
Instruction Manual
Model NGA 2000 HFID
760004-A
February 2002
LIST OF ILLUSTRATIONS
Figure 1-1. Flame Ionization Detection Technology ...........................................................................1-2
Figure 1-2. Heated Flame Ionization Detector Analyzer Module - Top View....................................1-3
Figure 2-1. Back Panel Connections ..................................................................................................2-2
Figure 2-2. Flow Diagram....................................................................................................................2-5
Figure 2-3. Front Panel Electrical Connections ..................................................................................2-6
Figure 2-4. Front Panel Connections, Controls and Indicators...........................................................2-6
Figure 2-5. HFID Outline and Mounting Dimensions ..........................................................................2-7
Figure 2-6. HFID Wiring Diagram........................................................................................................2-8
Figure 3-1. Typical Curves of Module Response vs. Pressure Setting on Fuel Pressure Regulator ..3-7
Figure 3-2. Typical Curves of Module Response vs. Pressure Setting on Air Pressure Regulator.....3-7
Figure 3-3. Front Panel Torque Sequence ..........................................................................................3-8
Figure 4-1. Removal of Cover and Insulation Shield ...........................................................................4-1
Figure 4-2. Locations of Major Assemblies of the HFID ......................................................................4-2
Figure 4-3. Removal of Oven from Chassis.........................................................................................4-3
Figure 4-4. Oven Assembly..................................................................................................................4-5
Figure 4-5. Burner - Sensor, Flameout Detector, RTD Detector and Ignitor .......................................4-7
Figure 4-6. Burner/Thermal Block Disassembly ..................................................................................4-8
Figure 4-7. Burner Disassembly...........................................................................................................4-9
Figure 4-8. Burner Jets ........................................................................................................................4-10
Figure 4-9. Thermal Block – Sample RTD, Cartridge Heater and Thermostat....................................4-12
Figure 4-10. Thermal Block Assembly .................................................................................................4-13
Figure 4-11. Removing Electronics Assembly from Chassis ...............................................................4-14
Figure 4-12. Electronics Assembly – Exploded View...........................................................................4-15
Figure 4-13. Case Sensor Installation..................................................................................................4-16
Figure 4-14. Case Pressure Purge Switch Installation ........................................................................4-17
Figure 4-15. Preamp Assembly Installation .........................................................................................4-18
Figure 4-16. Fan Assembly Installation................................................................................................4-19
Figure 4-17. Flow Controller Replacement ..........................................................................................4-20
Figure 4-18. Flow Controller Assembly................................................................................................4-21
Figure 4-19. DC Power Supply Module Replacement .........................................................................4-22
Figure 4-20. Front Panel – Exploded View ..........................................................................................4-23
Figure 4-21. Accessing Front Panel Components ...............................................................................4-24
Figure 4-22. Rear Panel Components .................................................................................................4-27
LIST OF TABLES
Table 3-1. HFID Analyzer Module Alarms ..................................................................................... 3-8
Rosemount Analytical Inc.
A Division of Emerson Process Management
Contents
iii
Instruction Manual
760004-A
February 2002
iv
Contents
Model NGA 2000 HFID
Rosemount Analytical Inc.
A Division of Emerson Process Management
Instruction Manual
760004-A
February 2002
Model NGA 2000 HFID
PREFACE
The purpose of this manual is to provide information concerning the components, functions,
installation and maintenance of the NGA 2000 HFID 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.
DEFINITIONS
The following definitions apply to DANGERS, WARNINGS, CAUTIONS and NOTES found
throughout this publication.
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
760004-A
February 2002
Model NGA 2000 HFID
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
Operate this equipment only when covers are secured. Servicing requires access to live parts
which can cause death or serious injury. Refer servicing to qualified personnel. For safety
and proper performance, this module must be connected to a properly grounded three-wire
source of electrical 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 continuous dilution purge system
is factory-installed (in accordance with Standard ANSI/NFPA 496-1993, Chapter 6, and it must
be functional at all times during operation. Do not disable this purge system.
WARNING.
FLAMMABLE SAMPLES
The internal compartment of the oven is vented to the main enclosure by the top and bottom
vents. DO NOT RESTRICT THOSE VENTS.
Consult the factory if flammable samples will be measured.
P-2
Preface
Rosemount Analytical Inc.
A Division of Emerson Process Management
Instruction Manual
760004-A
February 2002
Model NGA 2000 HFID
WARNING.
HIGH TEMPERATURE
This equipment is used in the analysis of sample gases at temperatures of up to 250C. All components and material in contact with the sample, the oven and the burner can reach this temperature
level.
Operate this equipment only when covers are secured. Servicing requires access to "hot" parts
which can cause serious injury. Refer servicing to qualified personnel.
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 2-5.
WARNING.
PARTS INTEGRITY
Tampering with or unauthorized substitution of components may adversely affect safety of this
product. Use only factory-approved components for repair.
CAUTION.
PURGE AIR REQUIREMENT
This Analyzer Module must be used in conjunction with a device (Control Module or PC Interface)
that can actively monitor network variables related to pressure or flow of the continuous dilution
purge, or the front panel LEDs of the Analyzer Module, as installed, must be visible. The purpose of
this requirement is to maintain adherence to ANSI/NFPA 496 standard which assures the continued
viability of the purge system. Under no circumstances should any pressure or flow indicator be
connected to the PURGE AIR OUT outlet of the Analyzer Module because this may affect the sealing
performance of the module.
CAUTION.
PRESSURIZED GAS
This module requires calibration with a known standard gas. See General Precautions for Handling
and Storing High Pressure Gas Cylinders, page P-5.
Rosemount Analytical Inc.
A Division of Emerson Process Management
Preface
P-3
Instruction Manual
760004-A
February 2002
Model NGA 2000 HFID
WARNING.
POSSIBLE EXPLOSION HAZARD
Ensure that all gas connections are made as labeled and are leak free. Improper gas connections
could result in explosion or death.
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.
CAUTION .
PRESSURIZED ENCLOSURE
This enclosure shall not be opened unless the area is known to be free of flammable materials or
unless all devices within have been de-energized.
Area classification for the protected enclosure:
Nonclassified.
Pressurization: Type Z
Temperature Identification Number: T4A
Power shall not be restored after enclosure has been opened (or loss of purge) until enclosure has
been purged for a minimum of 6 (six) minutes at the minimum pressure of 689 hPa (10 psig).
P-4
Preface
Rosemount Analytical Inc.
A Division of Emerson Process Management
Instruction Manual
Model NGA 2000 HFID
760004-A
February 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°F (52°C). A flame should
never be 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.
Rosemount Analytical Inc.
A Division of Emerson Process Management
Preface
P-5
Instruction Manual
760004-A
February 2002
Model NGA 2000 HFID
DOCUMENTATION
The following NGA 2000 HFID instruction materials are available.
the local representative to order.
Contact Customer Service Center or
748414 Instruction Manual (this document)
COMPLIANCES
This product may carry approvals from several certifying agencies, including Factory Mutual and the Canadian Standards Association (which is also an OSHA accredited, Nationally Recognized Testing Laboratory), for use in non-hazardous, indoor locations.
FM
APPROVED
®
97-C219
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).
NAMUR
This product satisfies all obligations of all relevant standards of the EMC framework in Australia and New
Zealand.
N96
P-6
Preface
Rosemount Analytical Inc.
A Division of Emerson Process Management
Instruction Manual
Model NGA 2000 HFID
760004-A
February 2002
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
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.
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A Division of Emerson Process Management
Preface
P-7
Instruction Manual
760004-A
February 2002
Model NGA 2000 HFID
Softkeys
The five function softkeys 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).
P-8
Preface
Rosemount Analytical Inc.
A Division of Emerson Process Management
Instruction Manual
760004-A
February 2002
Model NGA 2000 HFID
SECTION 1
DESCRIPTION AND SPECIFICATIONS
1-1 OVERVIEW
This manual describes the Heated Flame Ionization Detector (HFID) Analyzer Module of
Rosemount Analytical's NGA 2000 Series of
gas analysis components. See Figure 1-1 and
Figure 1-2.
The HFID Analyzer Module is designed to continuously determine the concentration of hydrocarbons in a flowing gaseous mixture at a
user-selectable temperature setpoint between
93°C and 204°C (200°F and 400°F). The concentration is expressed in ppm or percent of
volume.
The entire HFID Analyzer Module is designed
as a stand-alone module, with gas connections
made from the rear. All electronics relative to
sample detection and conditioning are included
in this module.
1-2 TYPICAL APPLICATIONS
The monitoring of atmospheric air for low-level
hydrocarbon contaminants and determining the
hydrocarbon content of exhaust emissions from
internal combustion engines are examples of
typical applications for the HFID Analyzer Module.
1-3 SAFETY GAS FEATURES
The HFID Analyzer Module is designed with a
factory-installed continuous dilution purge system in accordance with standard ANSI/NFPA
496 - 1993, Chapter 6. Front-panel LEDs indicate that the burner flame is lit and that the
purge system is enabled. In addition, fuel gas is
automatically shut off when a flame-out condition occurs or the safety system is disabled.
The purge system is enabled only if there is
proper purge gas flow in, purge gas pressure,
and internal case pressure, and after five times
the case volume has been exchanged.
Rosemount Analytical Inc.
A Division of Emerson Process Management
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 through the combination of an
inlet fuel flow restrictor and purge gas flow.
This module is designed to use 40%
H2/60% He fuel at a maximum inlet pressure of 3446 hPa-gauge (50 psig).
A standard HFID Analyzer Module is only
equipped to analyze a non-flammable sample, below 100% of the LEL.
WARNING
POSSIBLE EXPLOSION HAZARD
Protection against explosion depends
upon a special fuel flow restrictor in the
fuel inlet fitting. Do not remove fuel inlet
restrictor. Do not use 100% hydrogen
fuel. Replace only with a factory supplied fitting.
1-4 THEORY OF TECHNOLOGY
This Analyzer Module uses the flame ionization method of detection. The sensor is a
burner in which a regulated flow of sample
gas 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
Description and Specifications
1-1
Instruction Manual
760004-A
February 2002
Model NGA 2000 HFID
concentration of hydrocarbons in the sample.
This measure of concentration is placed on the
network, where it can be shown on a data
acquisition device.
Negative Ion
Collection Plate
+90V
Signal Conditioning
Positive
Carbon
Ions
Air
Sample
Fuel
C
Figure 1-1. Flame Ionization Detection Technology
1-2
Description and Specifications
Rosemount Analytical Inc.
A Division of Emerson Process Management
Instruction Manual
760004-A
February 2002
Model NGA 2000 HFID
Gas Lines
(See Figure 2-2)
Purge Air Outlet
Fuel Shutoff
Solenoid Valve
Detector
(Burner)
Oven
Preamp Board
(In Shield)
Case Pressure Switch
Air Circulation Fan
Computer Board
Case Heater
Sensor Board
Sample Flow
Controller
Safety Board
Purge Air
Flow Switch
DC-DC Module
Burner Air
Solenoid Valve
Power Supply Board
Purge Air
Regulator
Burner Air & Fuel Regulators
(Stacked Vertically)
Network & Power Module
Figure 1-2. Heated Flame Ionization Detector Analyzer Module - Top View
Rosemount Analytical Inc.
A Division of Emerson Process Management
Description and Specifications
1-3
Instruction Manual
760004-A
February 2002
Model NGA 2000 HFID
1-5 SPECIFICATIONS
a.
General
Measurement Species ....................Total hydrocarbons
Ranges (H2/He Fuel)
Low range .............................. 0 to 10 ppm, CH4, through 0 to 1%, CH4 at an oven setpoint between 113°C and 191°C
High range ............................. 0 to 50 ppm, CH4, through 0 to <5%, CH4 at an oven setpoint between 113°C and 191°C
Analysis Temperature .....................Adjustable from 200oF to 400oF (93oC to 204oC), maintained within
±11oF (±6oC) from the setpoint.
Repeatability ....................................≤1% of fullscale for successive identical samples, at a constant
temperature, sample flow and fuel, burner air, regulated air and
sample pressures
Min. Detectable Level......................0.10 ppm, CH4
Noise ................................................≤1% of fullscale, peak to peak
Linearity............................................≤±1% of fullscale, ≤±2% of data point (must be above the minimum
detectable level)
Response Time ...............................≤1.5 sec., 0% to 90% of fullscale
Drift
Zero ....................................... ≤ ±1% of fullscale/24 hours at constant temperature, sample flow,
hydrocarbon concentration of supply gases, and
fuel, burner air, regulated air and sample pressures.
Span ...................................... ≤ ±1% of fullscale/24 hours at constant temperature, sample flow,
hydrocarbon concentration of supply gases, and
fuel, burner air, regulated air and sample pressures.
Effect of Temperature.................... ≤±2% of fullscale for any ambient temperature change of 10oC and
rate of change less than 10oC/hr.
Operating Temperature ................. 59°F to 95°F (15°C to 35°C)
Power Requirements.......................+24 VDC ±5%, 120 W max. direct to Analyzer Module
Ripple and Noise: <100 mV pp
Line and Load Regulations: <1%
b.
1-4
Physical
Case Classification........................ General purpose for installation in weather-protected area
Maximum Separation .................... 1600m (1 mile) from Analyzer Module to Platform
Materials in Contact With Sample . Stainless steel and glass-filled Teflon
Dimensions.................................... See Outline and Mounting Dimensions, Figure 2-5
Weight ........................................... 15.9 kg (35 lbs.)
Mounting........................................ Horizontally, custom-installed in a panel
Description and Specifications
Rosemount Analytical Inc.
A Division of Emerson Process Management
Instruction Manual
760004-A
February 2002
Model NGA 2000 HFID
c.
Gas Requirements
Sample .......................................... Non-flammable, below 100% of LEL
Flow rate ................................ 1.0 to 2.5 L/min.
Supply pressure..................... 345 to 620 hPa-gauge (5 to 9 psig)
Temperature .......................... 110oC to 230oC (230oF to 446oF), <20oC variance/24 hours, <10oC
variance/hr.
Particulates ............................ filtered to <2 microns
Dewpoint................................ <15oC below the setpoint
Regulated Air................................. Instrument air or nitrogen
Flow rate ................................ 2 to 4 L/min.
THC ....................................... ≤2 ppm, CH4
Supply pressure..................... 689 to 1723 hPa-gauge (10 to 25 psig)
Particulates ............................ filtered to <2 microns
Purge Air:....................................... Instrument air, nitrogen or other nonflammable gas (refer to
ANSI/NFPA 496 for the requirements for the Protective Gas System)
Flow rate: .............................. 16 to 18 L/min.
Supply pressure:.................... 689 to 1378 hPa-gauge (10 to 20 psig)
Fuel Gas ........................................ Premixed 40% hydrogen and 60% helium
Flow rate ................................ 80 to 100 ml/min
THC ....................................... ≤0.5 ppm, CH4
Supply pressure..................... 3101 to 3446 hPa-gauge (45 to 50 psig)
WARNING
EXPLOSION HAZARD
Do not use pure hydrogen fuel. An explosion resulting in severe personal injury or death could occur.
Burner Air ...................................... Zero-grade air
Flow rate ................................ 350 to 400 mL/min.
THC ....................................... ≤1 ppm, CH4
Supply pressure..................... 1723 to 3446 hPa-gauge (25 to 50 psig)
Rosemount Analytical Inc.
A Division of Emerson Process Management
Description and Specifications
1-5
Instruction Manual
760004-A
February 2002
d.
Model NGA 2000 HFID
Gas Connections
Sample In ...................................... 1/4" O.D. tube fitting, stainless steel
Regulated Air In ...............................1/4" O.D. tube fitting, brass
Burner Air In .....................................1/4" O.D. tube fitting, brass
Fuel In...............................................1/4" O.D. tube fitting, stainless steel
Purge Air In ......................................3/8" O.D. tube fitting, brass
Purge Air Out....................................3/8" O.D. tube fitting, brass
Bypass Out.......................................1/4" O.D. tube fitting, stainless steel
Burner Exhaust Out:...................... 3/8" O.D. tube connection, stainless steel (must slope downward
6o min. from horizontal)
Burner Exhaust, Bypass Out and Purge Air Out to be vented to atmospheric pressure and to
non-classified location in accordance with ANSI/NFPA-496 guidelines.
Pressure Relief Valve ......................See Caution Below
CAUTION
PRESSURE RELIEF VALVE
No connection shall be made to this fitting. If this caution is ignored, damage to the case seals
could occur, and the instrument will not operate properly.
WARNING
HIGH TEMPERATURE
The Sample In, Bypass Out, and Burner Exhaust Out connections can reach temperatures of up to
250°C (480°F). Severe burns could result from touching these connections.
See the Preface section of the Platform Components manual for specifications regarding Platform-related
components and the Preface of the I/O Module manual for specifications regarding I/O (e.g., relay outputs).
1-6
Description and Specifications
Rosemount Analytical Inc.
A Division of Emerson Process Management
Instruction Manual
760004-A
February 2002
Model NGA 2000 HFID
SECTION 2
INSTALLATION
2-1 UNPACKING
If the HFID Analyzer Module is received as a
separate unit, 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
If the Analyzer Module requires assembly with
other components, do so at this time.
Connect the network cable to either the NETWORK 1 or NETWORK 2 connection on the
Analyzer Module. Connect the power cable to
the Analyzer Module front panel and an electrical +24VDC power supply.
2-3 LOCATION
Install the Analyzer Module in a clean,
weather-proofed, non-hazardous, vibration-free
location free from extreme temperature variations. For best results, install the Analyzer Module near the sample stream to minimize sample
transport time.
WARNING
INSTALLATION RESTRICTIONS
For safety, the Analyzer Module should be
installed in a non-confined, ventilated space.
Do not block any of the rear panel outlets as
they are part of the safety system.
Operating ambient temperature is 15°C to
35°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 45°C wet bulb temperature.
Rosemount Analytical Inc.
A Division of Emerson Process Management
The cylinders of fuel, air, and calibration
gas(es) and the source of purge and regulated air should be located in an area of
relatively constant ambient temperature.
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 calibration and instrument air for
purge requirements. In addition, instrument
air for regulated air in is required to control
the sample pressure at the sample capillary.
Criteria for selection of these gases follow in
Section 2-4c.
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 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 absorbed hydrocarbons, such as temperature or pressure.
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. 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
PURGE IN/OUT and SAMPLE BYPASS) is
strongly recommended, preferably precleaned, stainless steel, gas chromato-
Description and Specifications
2-1
Instruction Manual
760004-A
February 2002
Model NGA 2000 HFID
graph-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.)
the line and flood the burner. Depending on
the percent of water vapor in the sample,
the sample bypass out connection may
have condensation. Proper drainage may
be required.
Gas line connections are compression fittings.
Do not use pipe thread tape.
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.
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
!
WARNING
Purge air and burner air should be supplied
from separate sources.
Possible electric shock, explosion or toxic gas hazard. See front of module
FUEL
IN
BURNER
EXHAUST
OUT
PURGE
AIR OUT
BURNER
AIR IN
VENT TO SAFE AREA
SLOPE DOWNWARD 6°
MINIMUM
WARNING
HOT !
REGULATE
D
PURGE
AIR IN
ATTENTION
MAXIMUM
INPUT
PRESSURE
FUEL: 50 psig(3445 hPa)
BURNER AIR: 50 psig (3445 hPa)
SAMPLE: 8 psig (551 hPa)
PURGE AIR: 20 psig (1378 hPa)
REG AIR: 25 psig (1722 hPa)
PRESSURE
RELIEF
VALVE
CHAUD !
HEATED
SAMPLE IN
HEATED
SAMPLE
BYPASS OUT
!
d'electrocution, d'explosion ou d'emanation de gaz
ATTENTION Danger
toxique. Se refere aux details inscrits surla face du module.
Figure 2-1. Back Panel Connections
2-2
Description and Specifications
Rosemount Analytical Inc.
A Division of Emerson Process Management
Instruction Manual
760004-A
February 2002
Model NGA 2000 HFID
b.
Pneumatic Connections
c.
Specifications
Fuel Gas
WARNING
HIGH TEMPERATURES
The Sample In, Sample Bypass Out, and
Burner Exhaust Out gases and fittings can
reach temperatures of up to 250°C. Make
connections to these fittings when the oven
heater is disabled or the module is powered
down.
(See Figure 2-1) Connect inlet and outlet
lines for sample, burner fuel and air, exhaust, bypass, regulated air, and purge to
appropriately labeled fittings on the rear
panel. All connections are 1/4-inch ferrule-type compression fittings except the
PURGE AIR IN and OUT connections,
which are 3/8-inch compression fittings. The
Burner Exhaust is a 3/8-inch connection.
It is recommended that no connection be
made to the PURGE AIR OUT port. If, however, the analyzer's location requires interconnection with a venting system, the 3/8"
O.D. line should be kept as short as possible, and no longer than four feet.
CAUTION
POSSIBLE INSTRUMENT DAMAGE
No connection should be made to the
PRESSURE RELIEF VALVE fitting. Doing so
may cause damage to the instrument.
Standard analysis usually requires
mixed fuel, i.e., 40% ±2%) hydrogen
and 60% helium. H2/He mixed fuel is
recommended over H2/N2 fuel 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.
NOTE
The fuel restrictor is marked with a
red dot, and the sample capillary is
marked with a red or green dot for
mixed fuel applications.
Burner Air
In order to ensure a low background
signal, burner air should contain less
than 1 ppm maximum total hydrocarbon
content. An alternate 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.
Purge Air
Instrument quality air or nitrogen is required for the safety purge system.
Regulated Air
CAUTION
PURGE AIR REQUIREMENTS
The front panel LEDs of the Analyzer Module, as installed, are not visible, the user
should provide an indicator for the safety
system as per ANSI/NFPA 496 standards.
Rosemount Analytical Inc.
A Division of Emerson Process Management
Instrument quality air or nitrogen is required. The air should contain less than
2 ppm maximum total hydrocarbon
content.
Calibration Gases
Calibration method and gases depend
on the operating range, and the desired
measurement accuracy. In all methods,
zero and span gases are used, and are
Description and Specifications
2-3
Instruction Manual
760004-A
February 2002
Model NGA 2000 HFID
introduced through the sample inlet at the
rear of the module.
Burner Air Pressure should be : 1725
to 3450 hPa-gauge (25 to 50 psig) for
cylinder regulator, 1035 hPa-gauge (15
psig) nominal for internal pressure.
Zero Gas - Analysis is affected by the
background gas of the sample. Therefore, it
is recommended to use zero gas with as
close to the background composition of the
sample as possible. Normally less than 0.5
THC as CH4 is sufficient.
Regulated Air Pressure should be 689
to 1725 hPa-gauge (10 to 25 psig) for
cylinder regulator.
Purge Air Pressure should be 689 to
1380 hPa-gauge (10 to 20 psig).
Span Gas - Span gas consists of a specified concentration of methane or other hydrocarbon in a background gas such as
nitrogen. Analysis is affected by the background gas of the sample. Therefore, span
gas containing the same background gas as
the sample is recommended. Then, the
background effect is canceled out.
Nominal Internal Case Pressure is
about 0.5 to 1.0 inch of water, and the
pressure relief valve is set at 1/3 psig
(nominal).
CAUTION
Sample Gas
OVER PRESSURE DAMAGE
Sample gas should be nonflammable (below 100% of the sample's LEL). For high
sensitivity applications requiring background
gas compensation, contact the factory.
Noncompliance with these specifications, particularly those concerning
purge air, could cause over-pressure
damage to the module.
Flow Rate
NOTE
Required sample flow rate is 1.0 L/min. to
2.5 L/min. for a supply pressure between 5
and 9 psig. Flow rate for purge gas should
be 16 to 18 L/min. Flow rate for regulated
air should be 2 to 4 L/min.
2-5 LEAK TEST
Pressure/Filtration
Sample Pressure at the SAMPLE inlet
should be within the range of 345 to 620
hPa-gauge (5 to 9 psig, 7.0 psig nominal),
and internally, should be between 206.7
and 275.6 hPa-gauge (3.0 and 4.0 psig).
Burner Fuel Pressure should be: 3101 to
3450 hPa-gauge (45 to 50 psig) for cylinder
regulator, 1723 hPa-gauge (25 psig) nominal for internal pressure.
2-4
Description and Specifications
The sample gas and regulated air
should be filtered for particulates
down to 2 microns to prevent the
plugging of pneumatic components.
The analyzer module is completely leak
tested at the factory. 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).
Rosemount Analytical Inc.
A Division of Emerson Process Management
Instruction Manual
760004-A
February 2002
Model NGA 2000 HFID
BULKHEAD
3/8T BRASS
PURGE
AIR IN
REGULATED
AIR IN
HEATED SAMPLE
SAMPLE BYPASS
IN
OUT
BULKHEAD
1/4T - 1/8T
SS
MANIFOLD,
SAMPLE
CHECK
VALVE
1/3 PSIG
PLUG
1/8NPT
PLUG
1/4NPT
DIFFUSER
BURNER
AIR IN
PURGE
AIR OUT
FILTER
BULKHEAD
FUEL
3/8T - 1/4MPT
IN
BRASS
BULKHEAD
CONNECTOR
1/4T - 1/8NPT
SS
FUEL
RESTRICTOR
SOLENOID
VALVE
RUN TEE
1/4T - 1/4FPT
BRASS
MALE
CONNECTOR
1/8T - 1/8NPT
SS
PORT CONNECTOR
1/4
TUBING 1/4 OD
VITON
RESTRICTOR,
BYPASS
SENSOR,
SAMPLE
TEMPERATURE
ELBOW
1/4T - 1/4NPT
BRASS
TUBING 1/8 OD
COPPER
TUBING 1/8 OD
SS
PRESSURE
SWITCH
SAMPLE
CAPILLARY
ADAPTER
1/4T - 1/8NPT
BRASS
CONNECTOR
1/16T - 1/8NPT
SS
ELBOW
PURGE AIR
RESTRICTOR
BRASS
BURNER
DETECTOR
A
PURGE
PRESSURE B
SENSOR
SENSOR,
FUEL
PRESSURE
0 - 30 PSIG
ELBOW
1/8T - 1/8T
BRASS
UNION
1/4T BRASS
TUBING 1/4 OD
VITON
TUBING 1/8 OD
COPPER
RUN TEE
1/8T - 1/8MPT
TUBING 1/8 OD
BRASS
SS
AIR
RESTRICTOR
TUBING 1/4 OD
COPPER
FUEL RESTRICTOR
1/8T - 1/8T
PRESSURE SENSOR,
REGULATED AIR
0 - 15 PSIG
IN
TUBING 1/8 OD
COPPER
FIXED FLOW
CONTROLLER,
REGULATED AIR
OUT
AIR IGNITE
RESTRICTOR
RUN TEE
1/4T - 1/4MPT
BRASS
GA
OUT
IN
SENSOR,
BURNER AIR
PRESSURE
0 - 30 PSIG
TUBING 1/8 OD
COPPER
OUT
TUBING 1/4 OD
COPPER
ELBOW
1/4T - 1/4MPT
BRASS
OUT
BULKHEAD
REDUCER
1/4T - 1/8T
BRASS
ELBOW
1/4T - 1/4FPT
BRASS
SWITCH,
PURGE
FLOW
PRESSURE
RELIEF
VALVE
BURNER
EXHAUST
BULKHEAD
1/4T - 1/4T
BRASS
REDUCER
3/8T - 1/4T
BRASS
REGULATOR,
PURGE AIR
BULKHEAD
RESTRICTOR
1/4T - 1/4T
SS
GA
IN
REGULATOR,
FUEL
PRESSURE
0 - 30 PSIG
ELBOW
1/8T - 1/8MPT
BRASS
PRESSURE
REGULATOR,
BURNER AIR
0 - 60 PSIG
Figure 2-2. Flow Diagram
Rosemount Analytical Inc.
A Division of Emerson Process Management
Description and Specifications
2-5
Instruction Manual
760004-A
February 2002
Model NGA 2000 HFID
2-6 ELECTRICAL CONNECTIONS
Two electrical connections are required on the
Analyzer Module: POWER and NETWORK
(See Figure 2-3 and Figure 2-4). On the Analyzer Module, two NETWORK connectors are
available, either of which is appropriate for: 1)
interconnection with the control module or 2)
"daisy-chaining" with other NGA 2000 components. Connect Analyzer Module POWER to an
external +24 VDC power source with a voltage
tolerance of ±5% and a minimum power rating
of 120 watts.
NETWORK1
NETWORK2
POWER
FUSE
Figure 2-3. Front Panel Electrical Connections
HFID
! WARNING
POSSIBLE
EXPLOSION HAZARD
Hydrogen fuel gas is used in this instrument.
Do not remove fuel restrictor or operate at
greater than 50 psig. An explosion resulting
in severe personal injury or death could occur.
BURNER
AIR
FUEL
! ATTENTION
DANGER D′EXPLOSION
Cet instrument contient du gaz hydrogene. Ne
retirez pas le limitateur d′de
combustible, et n′operez pas au plus de 50
psig
Ces conditions peuvent provoquer une explosion
POWER
LON
1
OVEN
HEAT
FLAME
ON
LON
2
PURGE
AIR
1+
24V 2 3 GND
FUEL
OVERRIDE
T 6A
IGNITE
250 V
! WARNING
POSSIBLE
EXPLOSION HAZARD
Do not operate flammable
sample without following
instructions in the Manual.
An explosion resulting in
severe personal injury or
death could occur.
! ATTENTION
DANGER
Ne pas utiliser l′echantillon
inflammable avant d′avoir pris
connaissance des instructions
contenues dans le manuel. Le
non respect de ces instructions
peut entrainer une explosion
provoquant des blessure graves
ou mortelles.
Figure 2-4. Front Panel Connections, Controls and Indicators
2-6
Description and Specifications
Rosemount Analytical Inc.
A Division of Emerson Process Management
Instruction Manual
760004-A
February 2002
Model NGA 2000 HFID
FRONT VIEW
8.2
[208]
6.8
[174]
3.6
.7 [91]
[18]
1.9
[48]
.6
[15]
1.1
[28]
4.3
[110]
2.8
[71]
2.0
[51]
6.0
[152]
SIDE VIEW
1.1
[28]
22.5
[571]
.3
[7]
1.4
[34]
.25
[6] DIA
.7
[17]
.2
[6]
7.2
[183]
REAR VIEW
5.4
[137]
4.2
[107]
4.0
[103]
2.0
[52]
1.1
[27]
1.4
[35]
3.3
[83]
.9
[23]
1.0
[25]
2.4
[60]
3.2
[81]
3.1
3.0 [78]
[75]
Dimensions:
INCHES
[MM]
Rosemount Analytical Inc.
Figure 2-5. HFID Outline and Mounting Dimensions
A Division of Emerson Process Management
Description and Specifications
2-7
2-8
Description and Specifications
COMPUTER
ANALYSIS
BOARD
J1
J2
J3
P1
P2
P3
EI
P1
E2
J1
E3
PREAMP
BOARD
Rosemount Analytical Inc.
J1
POL
VOL
P3 J3
J14
P16
J16
P13
J13
P11
J11
CABLE
ASSEMBLY,
IGNITOR
P1
J8 P8
J7 P7
J9 P9
J10 P10
J12 P12
SENSOR,
SAMPLE
PRESSURE
SENSOR ASSEMBLY,
REF TEMP
CABLE ASSEMBLY,
OVEN HEATER
SENSOR ASSEMBLY,
FLAME OUT
P15
J15
J10
P10
J11 P11
J10 P10
J12 P12
THERMOSTAT
P3
J3
FAN ASSEMBLY
HEATER
J11
P11
ASSEMBLY
MODULE
POWER
J5 +10V REF
J8
P8
JP1
RTN
J2
OVEN
HEATER
CHASSIS
GND
P5 J5
P4 J4
CABLE ASSEMBLY,
SENSOR BD TO HARNESS
SENSOR,
FUEL
PRESSURE
ANODE
OVEN
RTD
SAMPLE RTD
J18
P18
POWER
RESISTOR
J17
FLOW
SW
SENSOR,
AIR
PRESSURE
CATHODE
GND
STRAP
P17
J14
P14
HARNESS,
CHASSIS
THERMAL OVEN SAMPLE
SWITCH
RTD
RTD
J7
FLOW
SW
HARNESS, GLOW PLUG
RED
BLK
RED
BLK
P10
CABLE ASSEMBLY, THERMAL FUSE
MTG
STUD
CASE
PRESS
SWITCH
HARNESS
P4
SENSOR,
CASE TEMP
J7
P7
J10
3-WAY SOLENOID
AIR
J2
P2
LED INDICATOR
ASSEMBLY
P2 J2
P1 J1
E3
E1 RTN
E2 24VOLT
PURGE AIR
FLAMEON
OVEN
HEAT
POWER
CABLE ASSEMBLY,
FLAT 10 COND
J6
GRN
BLK
RED
760004-A
February 2002
CABLE ASSEMBLY, ANODE
P7
J16
J3
2-WAY SOLENOID
FUEL IN
P3
J9
CABLE ASSY,
PRESSURE
SWITCH
AIR
P9
J6
P5
CABLE ASSEMBLY, CATHODE
P3
J15
OVEN HEATER
FUEL SOL.
J5
SHIELD
FLOW
SWITCH
J4
P1
SAFETY
BOARD
P2
P5
1 2 3 4 5 6 7 8
P15
+
+
+
-
P6
PUR
J3
J1
P16
J5
P4
YEL
GRN
BLU
BRN
RED
ORN
P1
J1
CABLE ASSEMBLY, FLAT 24 COND
J4
J2
CABLE ASSEMBLY,
FLAT 16 COND
POWER
SUPPLY
BOARD
GRY
J6
P6
CABLE ASSEMBLY,
FLAT 3 COND
SHIELD
J5
P5
CABLE ASSEMBLY, FLAT 20 COND
LON/POWER
MODULE
R37
R38
P4
J4
CABLE ASSEMBLY,
FLAT 30 COND
CABLE ASSEMBLY, FLAT 3 COND
Instruction Manual
Model NGA 2000 HFID
PWR
MOD
J1
J1
SWITCH
ASSEMBLY,
MANUAL
IGNITE
J6
J4
NC
SENSOR
BOARD
NC
DETECTOR
BLOCK
ASSEMBLY
Figure 2-6. HFID Wiring Diagram
A Division of Emerson Process Management
Instruction Manual
Model NGA 2000 HFID
2-7 INSTALLATION CONSIDERATIONS CHECKLIST
Verify the following:
• The Analyzer’s location should
be:
Clean
A well ventilated area
weatherproofed
Non-hazardous
760004-A
February 2002
• The bypass line connection must
be slanted down a minimum of 6
degrees from horizontal for
drainage of water condensation.
• If required, thermal insulation
around the bypass fitting to prevent condensation in the bypass
restrictor.
• If required, thermal insulation for
the sample inlet connection to
minimize the cold spot.
• The heated line is at the correct
temperature.
Vibration-free
Have stable ambient temperature
• The gas cylinders should be
equipped with a clean, hydrocarbon free two stage regulator and
shut off valve.
• All external tubing, regulators,
valves, pumps, fittings, etc. are
clean.
• The sample, zero, and span
gases are at the correct temperature.
• The heated line to have over
temperature protection.
• The sample, bypass, and burner
exhaust tubing material must
handle high temperature and
have thermal insulation to protect
from burns.
• The correct fuel type is being
used.
• The purge air out tubing to be
3/8 inch and less than 4 feet in
length.
• The THC content of the supply
gases are compatible with the
analysis range.
• All external gas connections
have been leak checked.
• The calibration background
gases are similar to the sample.
• The dead volume for external
sample and fuel lines have been
minimized.
• The purge air out, burner exhaust, and bypass are vented to
atmospheric pressure. The pressure should be constant.
• The stainless steel tubing used
for the fuel and sample lines is
clean.
• The burner exhaust tube must be
slanted down a minimum of 6
degrees from horizontal.
Rosemount Analytical Inc.
A Division of Emerson Process Management
Description and Specifications
2-9
Instruction Manual
760004-A
February 2002
2-10
Description and Specifications
Model NGA 2000 HFID
Rosemount Analytical Inc.
A Division of Emerson Process Management
Instruction Manual
760004-A
February 2002
Model NGA 2000 HFID
SECTION 3
OPERATION
3. Connect the LON cable(s) and the
+24VDC power cable.
3-1 OVERVIEW
Prior to initial startup, the user should leak test
the module as outlined in Section 2.
4. Turn power ON.
For the remainder of this section, Analyzer
Module interconnection with a control module
or some interfacing component will be assumed operational.
5. Check the 4 LEDs. The power green LED
should be illuminated. The Oven amber
LED should be blinking or on. The other
LEDs should be OFF.
3-2 STARTUP PROCEDURE
WARNING
PRESSURIZED ENCLOSURE
This enclosure shall not be opened unless
the area is known to be free of flammable
materials or unless all devices within have
been de-energized.
Area classification for the protected enclosure:
Non-Classified.
Pressurization: Type Z
Temperature Identification Number: T4A
Power shall not be restored after enclosure has been opened (or loss of purge)
until enclosure has been purged for a
minimum of 6 minutes at the minimum
pressure of 689 hPa (10 psig). For safety,
the Analyzer Module should be installed in
a non-confined, ventilated space. Do not
block any of the rear panel outlets as they
are part of the safety system.
1. Connect supply gases and outlets to/from
module.
2. Turn ON the purge gas only. Perform a
leak check. Wait a minimum of 6 minutes.
Rosemount Analytical Inc.
A Division of Emerson Process Management
6. Allow the network to initialize.
7. If the user's system contains only one
Analyzer Module, all system components,
the Controller Board and the network
"self-install" (bind together) during initial
startup. If the system contains more than
one Analyzer Module, the startup sequence will interrogate the network to locate and identify all components on the
network. The user will have to bind appropriate combinations of components
after the startup sequence. (See Section
3-3.)
8. Check the general health of the analyzer
by reviewing the status of the Self Tests.
All “Pass” conditions should be obtained.
These test results can be found by selecting the following from the Main Menu:
Technical Level Configuration, Diagnostic
Menus, Analyzer Module Diagnostics,
Self Test. All tested parameters should
indicate "Pass."
Descriptions of the tests performed follow:
•
EEPROM test - Checks the EEPROM
on the Analysis Computer PCB.
•
EPROM test - Checks the EPROM
on the Analysis Computer PCB.
•
RAM test - Checks the RAM on the
Analysis Computer PCB.
Operation
3-1
Instruction Manual
760004-A
February 2002
Model NGA 2000 HFID
•
Power supply test - Verifies that all
internal DC voltages are within the
required tolerances.
•
Network test - Checks the internal
network interface.
•
•
•
10. Wait for the Purge Air green LED to illuminate.
20 bit ADC test - Checks the 20-bit
ADC on the Analysis Computer PCB
by sending a DC signal through the
Preamp PCB and reading the signal
back with the 20-bit ADC.
12 bit ADC test - Checks the 12-bit
ADC on the Analysis Computer PCB
by sending a DC signal and reading
the signal back with the 12-bit ADC.
Power Supply PCB test - Checks
the presence of the Power Supply
PCB by activating the 3-way air solenoid.
•
Safety PCB test - Checks the presence of the Safety PCB by sending a
command and reading it back.
•
Case temperature test - Compares
the temperature read between the
Preamp temperature sensor and the
case temperature sensor. They must
be within 10°C of each other. This test
sometimes fails if the case is opened.
The sensor in the Preamp will take
longer to cool off since it is in an enclosure. Re-running the self-test after
thermal equilibrium will produce a
positive result if the sensors are
working properly.
•
9. Set the desired oven setpoint in the range
of 93°C to 204°C (200°F to 400°F).
11. Introduce the remaining supply gases.
Perform leak check. (See Section 1-5
Specifications)
12. Set and verify the internal gas pressures.
Internal
Pressure
Regulator
Burner Air
Fuel
Sample
(non-adjustable)
Oven/Sample Temperature test Compares the temperature read between the sample temperature sensor
and the oven temperature sensor.
They must be within 50°C of each
other.
The self-test can be repeated at any time
by activating the TEST softkey in the Self
Test Results menu.
3-2
Operation
Rosemount Analytical Inc.
Typical Operating
Pressures
965 to 1103 hPa-gauge
(14 to 16 psig)
1516 to 1723 hPa-gauge
(22 to 25 psig)
206 to 290 hPa-gauge
(3.0 to 4.0 psig)
Purge air of the following specifications
must be present:
Flow: 16 to 18 L/min.
Supply Pressure: 689 to 1378 hPa-gauge
(10 to 20 psig)
Noncompliance could cause damage to
the module. At the very least, the module's safety system, which requires a
certain volume of purge air flowing
through the case before allowing burner
ignition, will not allow the instrument to
operate. The lowest purge air
flow/pressure setting possible during
burner operation is preferable. Thus, the
user should set the external purge air
pressure initially at 689 hPa-gauge (10
psig). Check the Miscellaneous Control
Parameters screen under Technical Diagnostics, and note whether the Purge
Gas (switch) variable is "ON." If it is
"OFF," increase purge air supply by
69 hPa-gauge (1 psig), and recheck the
Purge Gas variable until it reads "ON."
DO NOT EXCEED 1378 hPa-GAUGE (20
PSIG). If the maximum setting is reached,
A Division of Emerson Process Management
Instruction Manual
760004-A
February 2002
Model NGA 2000 HFID
and the Purge Gas variable does not read
"ON," contact factory. If the safety system
is initiated successfully (Purge Gas variable is "ON"), continue with the remainder
of the startup procedure.
NOTE
Do not restrict the PURGE OUT port
and the pressure relief valve. They
must be vented to atmospheric pressure.
13. Manual or Auto-ignite the flame. The
Flame-On green LED should be illuminated.
Two methods of burner ignition are possible: auto-ignition and manual ignition.
(Note: The burner is easier to ignite when
the oven has reached the desired setpoint
temperature.)
Auto-ignition provides fuel override and
three attempted ignitions (default setting),
if necessary.
Before ignition and operation, Fuel Flow
must be set to ON in "Light Flame" display
screen under Basic Controls and oven
temperature must be at least 85°C.
The manual ignition switch on the Analyzer Module front panel must be manipulated in the following ways:
•
Press up and hold for one minute.
This opens burner fuel and air solenoids.
•
Press down to ignite burner glow plug
for up to 10 seconds.
•
Repeat as necessary (if fuel and air
sources are farther away than 10 feet,
several more attempts may be necessary).
•
If the flame has been lit, but the flame
temperature increases slowly, perform the following steps:
Rosemount Analytical Inc.
A Division of Emerson Process Management
ƒ
After igniting flame, release
switch for 2 seconds
ƒ
Press switch
2 seconds
ƒ
Repeat release switch and
press down steps as
necessary.
down
for
14. Allow the case and oven to warm up, approximately 1 to 2 hours.
15. Verify that all 4 LEDs are illuminated.
16. Note the four LEDs on the front panel of
the Analyzer Module. They provide necessary information for either ignition procedure. The LEDs, when illuminated,
denote the following information:
•
Green - unit powered on
•
Amber - continuous illumination implies oven has reached operating
temp. Within ±6°C of setpoint
•
Green - Flame on
•
Green - purge air system intact (it has
filled five volumes of the module interior)
17. Check and re-adjust the internal pressures if required.
The unit is ready for operation.
3-3 BINDING
To achieve full coordination between Analyzer
Modules and associated I/O Modules, the
user must bind those components together in
the System Set Up portion of the Technical
Configuration Menu in software.
Operation
3-3
Instruction Manual
760004-A
February 2002
Model NGA 2000 HFID
Technical Level Configuration, Service
Menus, Manufacturing Data, Analyzer
Module Data).
3-4 CALIBRATION
Calibration gas setup is as follows:
4. Supply heated zero gas to sample inlet.
Adjust external flow controller or throttle
valve so that the sample inlet pressure is
between 5 and 9 psig., 7 nominal.
5. In the Calibration Gas List menu (from the
Main Menu, select Expert Controls and
Setup, Analyzer Module Setup, then Calibration Gas List), enter necessary data,
including the Operational Sample Pressure and the Calibration Gas HC Response Factor. Common HC factors are:
methane (CH4), 1.0, ethane (C2H6), 1.90,
propane (C3H8), 3.00. These factors are
not used to compensate the reading, but
are used to select the proper preamp
sense resistor.
5. Supply heated span gas to sample input.
Repeat adjustment described in step 3.
The reading of the sample pressure,
oven, and sample temperatures should be
the same as that used during the adjustment of the zero gas.
6. Press HOME to re-enter the Main Menu,
enter the Basic Controls menu, select desired range, introduce zero gas and allow
its response to stabilize, press the ZERO
softkey to enter the Analyzer Zero menu,
press ZERO again and wait.
See Section 2-4c for a description of the
method for choosing calibration zero and span
gases.
7. Press the SPAN softkey to enter the
Analyzer Span menu, introduce span gas
and allow its response to stabilize, press
SPAN again and wait.
To calibrate the Analyzer Module, introduce
zero gas into the SAMPLE INLET, and do the
following:
8. Repeat steps 6 and 7.
1. If more than one Analyzer Module is functional and the split Run Mode display is
shown, press the DISPLAY softkey until
the desired Analyzer's Run Mode display
is acquired.
10. Press DISPLAY softkey for the Run Mode
display.
1. Set oven temperature setpoint.
2. Apply regulated air at a pressure between
10 and 25 psig.
3. Allow case, oven, and sample temperatures to stabilize.
2. Press the MENUS softkey to enter the
Main Menu.
3. Verify the fuel type in the Miscellaneous
Control Parameters menu (under the
Technical Configuration menu structure,
select the following from the Main Menu:
Diagnostic menus, Analyzer Module Diagnostics and then Miscellaneous Control
Parameters).
4. Verify the capillary type in the Analyzer
Manufacturing Data menu (under the
Technical Configuration menu structure,
select the following from the Main Menu:
3-4
Operation
9. Press the HOME softkey to re-enter the
Main Menu.
If the user is unable to calibrate the Analyzer
Module (i.e., when ZERO or SPAN is initiated,
nothing happens), several possible solutions
present themselves. One solution relates to
the use of an incorrect gas for zeroing or
spanning (e.g., using a high concentration gas
to zero or a zero gas to span the Analyzer
Module). Simply recalibrating with the appropriate gas(es) will not correct the problem because the ZERO OFFSET or SPAN FACTOR
has been set to an extreme value in the process.
To remedy the problem, do the following:
Rosemount Analytical Inc.
A Division of Emerson Process Management
Instruction Manual
760004-A
February 2002
Model NGA 2000 HFID
1. Verify that correct zero and span calibration gases are being used properly. If so,
attempt to recalibrate according to instructions at the beginning of Section 3-4,
ensuring that the oven, sample and case
temperatures and displayed measurement reading are stable before initiating
the calibration routine. If incorrect gases
were used in the initial, failed calibration,
skip to Step 2.
2. Make the following selections from the
Main Menu: Expert Controls and Setup,
Analyzer Module Setup, then Calibration
Parameters. Disable Calibration Adjustment Limits.
3. Recalibrate the analyzer module according to instructions at the beginning of section 3.4, ensuring that oven, sample, and
case temperatures and displayed measurement reading are stable before initiating the calibration routine.
4. Enable Calibration Adjustment Limits in
the Calibration Parameters menu.
NOTE
If the range selections straddle 725 ppm,
CH4, the zero and span calibration for each
range must be done separately.
3-5 ROUTINE OPERATION
After case, oven, and sample temperature
stabilization, calibration, and binding, proceed
as follows:
Supply heated sample gas to SAMPLE INLET. Adjust external flow controller or throttle
valve so that the sample inlet pressure is between 5 and 9 psig, 7 psig nominal. The
reading on the SAMPLE pressure gauge and
sample and oven temperatures should be the
same as that used during adjustment of the
zero and span calibration gas control.
Adjust the Range Number setting. The Analyzer Module will now automatically and continuously output the measured hydrocarbon
content of the sample. Output is in terms of
the particular hydrocarbon present in the span
gas. Note that readings obtained during op-
Rosemount Analytical Inc.
A Division of Emerson Process Management
eration depend on the concentration of total
hydrocarbons in the sample.
If maximum sensitivity is required from the
HFID Analyzer Module, use an optimum combination of settings on the FUEL, and AIR
pressure regulators. Settings must be determined experimentally, but the curves in Figures 3-1 and 3-2 may be used as guides.
The Analyzer Module will not allow the user to
increase the upper limit of a range beyond the
"maximum range" software setting. To change
the "maximum range" value, select the following from the Main Menu: Technical Configuration Menu, Service Menus,
Manufacturing Data, and Analyzer Module
Data. Select Maximum Range, and use the
arrow keys to scroll the indicated value. The
same applies for Minimum Range settings.
During shutdown, always turn off fuel gas first,
then the air and sample gases. The flame can
also be turned off by setting Ignition System
Enable to "Off" in the Light Flame menu (under Basic Controls). Subsequently, remember
to set Ignition System Enable to "On" before
attempting to ignite the flame.
After initial startup, or startup following a prolonged shutdown, the Analyzer Module requires about one day's continuous operation
to stabilize. For several days afterwards, calibrate daily. The frequency of subsequent calibrations can be reduced as experience
dictates, consistent with the accuracy requirements of the particular application.
3-6 SAFETY SYSTEM
The HFID Analyzer Module safety system will
not allow ignition or continuous burner function unless the following conditions are present:
•
The internal purge gas pressure is at least
380 hPa - gauge (5.5 psig). (Monitor display message, Purge Gas Pressure in
Physical Measurements menu, for proper
setting.)
•
Flow rate for purge air in is at least
16 L/min. and case pressure is greater
Operation
3-5
Instruction Manual
760004-A
February 2002
Model NGA 2000 HFID
than 0.5 inches of water. (Monitor display
message, Purge Gas (ON) in Miscellaneous Control Parameters menu for correct
state. Proper sealing hardware must be
used in order to obtain the required purge
air in flow rate and case pressure).
•
3-6
Five case volumes of purge air have been
achieved and the three above conditions
are present. The time duration to achieve
a safe system is a minimum of 6 min. The
elapsed time can be monitored in the
Technical Startup Analyzer menu. (Monitor the Purge Air Green LED (ON), Purge
Operation
Control Status (ON), or Purge Air Alarm
for indication of the state of the safety
system.)
As stated above, proper sealing hardware is
crucial to the successful operation of the
safety system. Therefore, a specific torque
sequence (shown in Figure 3-3) must be followed when the front panel of the module is
being reinstalled after removal. All front and
rear panel screws must be installed.
NOTE
Do not over-torque rear panel screws.
Rosemount Analytical Inc.
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Instruction Manual
760004-A
February 2002
Model NGA 2000 HFID
1.0
0.8
RESPONSE
(100 ppm CH4 fullscale)
0.6
AIR: 30 psig (2064 hPa)
AIR: 20 psig (1376 hPa)
AIR: 10 psig (688 hPa)
0.4
SAMPLE: 100 ppm CH4 in N2
at 3.5 psig (241 hPa)
0.2
0
0
5
344
10
688
15
1032
20
1376
25
1726
30
2064
psig
FUEL PRESSURE hPa
Figure 3-1. Typical Curves of Module Response vs. Pressure Setting on Fuel Pressure Regulator
1.0
FUEL: 30 psig (2064 hPa) H2
0.8
FUEL: 25 psig (1726 hPa) H2
RESPONSE
(100 ppm CH4 fullscale)
FUEL: 20 psig (1376 hPa) H2
0.6
0.4
SAMPLE: 100 ppm CH4 in N2
at 3.5 psig (241 hPa)
0.2
0
0
5
344
10
688
15
1032
20
1376
25
1726
30
2064
psig
AIR PRESSURE hPa
Figure 3-2. Typical Curves of Module Response vs. Pressure Setting on Air Pressure Regulator
Rosemount Analytical Inc.
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Operation
3-7
Instruction Manual
760004-A
February 2002
Model NGA 2000 HFID
DISPLAY MESSAGE
DESCRIPTION
AIR FET
AIR PRESS
BAIR FLOW
BAROMETER
BFUEL FLOW
BLOCK FET
CASE TEMP
CRUDE NOISE
CURRENTRNGHI
CURRENTRNGLO
CURRENTSFAC
FLAME TEMP
FUEL PRES
LIN ERROR
N15 VOLTS
P10 VOLTS
P15 VOLTS
POL VOLTS
SAMP PRES
CALRESULT
PURGE AIR
SW ERROR
TYPE
FID Air FET current
WARNING
FID Air Pressure
WARNING
Burner Air Flow
WARNING
System Barometer
WARNING
Burner Fuel Flow
WARNING
Heater current
WARNING
Case Temperature
WARNING
Calculated Noise
WARNING
Current, High Range
WARNING
Current, Low Range
WARNING
Current Range
WARNING
Flame Temperature
WARNING
Fuel Pressure
WARNING
Linearizer Error
WARNING
Power Supply -15V
WARNING
Power Supply +10V REF
WARNING
Power Supply +15V
WARNING
Polarizing Volts
WARNING
Sample Pressure
WARNING
Calibration Error
FAILURE
FID Purge Air
FAILURE
Software Error
FAILURE
Table 3-1. HFID Analyzer Module Alarms
Torque Sequence:
Screw #1, 4 to 5 turns
Screw #2, 4 to 5 turns
Screw #3, 4 to 5 turns
Screw #4, 4 to 5 turns
Screw #5, 4 to 5 turns
Screw #6, 4 to 5 turns
6
1
4
Repeat torque sequence until
all screws are tight.
3
5
The gasket must fill in between
the front panel plate and the enclosure.
2
Figure 3-3. Front Panel Torque Sequence
3-8
Operation
Rosemount Analytical Inc.
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Instruction Manual
760004-A
February 2002
Model NGA 2000 HFID
SECTION 4
MAINTENANCE AND SERVICE
1. Remove power to the unit; shut off gases
and disconnect lines. Allow module to
cool.
WARNING
QUALIFIED PERSONNEL
2. Refer to Figure 4-1. Remove the six
screws securing the front panel, then the
six screws securing the cover to the rear
panel. Slide cover towards rear panel to
remove. Loosen four screws securing inner insulation shield to base, lift up to remove.
This equipment should not be adjusted or
repaired by anyone except properly qualified service personnel.
4-1 OVERVIEW
This section contains instructions and procedures for troubleshooting and maintaining the
HFID analyzer module. To access the internal components of the analyzer module, perform the following:
Figure 4-2 illustrates the locations of major
components of the HFID.
Cover
Insulation Shield
WARNING
FUEL
IN
PURGE
AIR OUT
BURNER
AIR IN
REGULATED
AIR IN
PURGE
AIR IN
BURNER
EXHAUST
OUT
WARNING
ATTENTION
HEATED
SAMPLE IN
PRESSURE
RELIEF
VALVE
HEATED
SAMPLE
BYPASS
ATTE
NTION
Cover/Rear Panel Securing Screws (6)
Securing
Screw (4)
Front Panel Securing
Screws (6)
Figure 4-1. Removal of Cover and Insulation Shield
Rosemount Analytical Inc.
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Maintenance and Service
4-1
Instruction Manual
760004-A
February 2002
Model NGA 2000 HFID
Rear Panel Assembly
656954
Electronics Assembly
656943
DC Power Supply Module Assembly
657413
Oven Assembly
659551
Fan Assembly
657414
Fixed Flow Controller Assembly
657434
Front Panel Assembly
656949
Figure 4-2. Locations of Major Assemblies of the HFID
4-2
Maintenance and Service
Rosemount Analytical Inc.
A Division of Emerson Process Management
Instruction Manual
760004-A
February 2002
Model NGA 2000 HFID
4-2 OVEN
NOTE
DO NOT remove the fittings from the
gas lines on the detector.
Though the oven can be replaced as a complete unit, all internal components are field replaceable.
a.
Remove the two hex nuts securing the
oven to the chassis and the two
screws securing oven to the rear
panel. Lift oven assembly from analyzer.
Removal
Refer to Figure 4-3, disconnect the oven's
three gas lines and seven electrical cables, noting location of mating connectors
for re-installation.
Oven Assembly
659551
Figure 4-3. Removal of Oven from Chassis
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Maintenance and Service
4-3
Instruction Manual
760004-A
February 2002
Model NGA 2000 HFID
b.
4. Refer to Figure 4-4B. Remove the
two nuts and washers from the electrical preamp connectors on the inner
oven front panel. Do not unsolder
these connections.
Disassembly
1. Refer to Figure 4-4A. Remove the
four retaining screws on the oven
cover, remove cover.
2. Remove the two screws and one nut
securing the outer oven front panel
to the outer oven, remove front
panel.
3. Remove the nuts and ferrules from
sample in and sample bypass out.
CAUTION
PREAMP CONNECTORS
The electrical preamp connectors are fragile, handle with care to avoid breaking solder connection.
4-4
Maintenance and Service
5. Unscrew the three screws from inner
front panel and remove it.
6. Refer to Figure 4-4C. Remove the
two hex nuts securing the burner to
the bottom of the inner oven.
7. Disconnect the sample input and
output bypass fittings.
8. Lift the burner/thermal block up and
out, while disconnecting exhaust.
Reverse procedure for installation.
Rosemount Analytical Inc.
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Instruction Manual
760004-A
February 2002
Model NGA 2000 HFID
A
B
Oven Cover 657105 (with
insulation 657346)
Exhaust
Nuts and Ferrules (2 ea.)
Inner Oven Retaining Screw (2) and
Washer (2)
Inner Oven
Inner Oven Front
Panel 657352
Preamp connector
nut, washer (typ 2)
Outer Oven
Outer Oven Front Panel
657356
C
Burner
657359
Spring, Heated
Bridge 904294
Heated Bridge
659555
Heater/Cable
Assembly 659643
Jam Nuts
659550
Insulating Washers
073737
For clarity, outer oven not shown in Figures B and C.
Figure 4-4. Oven Assembly
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Maintenance and Service
4-5
Instruction Manual
760004-A
February 2002
Model NGA 2000 HFID
4-3 BURNER
5. Insert replacement RTD detector into
hole, snug down set screw.
This section covers burner components which
can be replaced without removal of oven from
the chassis.
6. Re-attach wiring connector.
7. Install oven cover.
a.
Temperature Sensor
c.
1. Refer to Figure 4-4A. Remove the
four screws on the oven cover, remove cover.
1. Refer to Figure 4-4A. Remove the
four screws on the oven cover, remove cover.
2. Refer to Figure 4-5. Remove the
burner cap retainer.
2. Refer to Figure 4-5. Disconnect the
igniter wiring connector, note location.
3. Disconnect the temperature sensor
wiring connector, note location.
3. Using an open-end wrench, unscrew
the igniter assembly from the burner.
Verify that o-ring is also removed.
4. Remove the temperature sensor.
4. Install replacement igniter and new oring. Using open-end wrench, snug
down. Do not over-tighten!
5. Insert replacement sensor.
NOTE
The leads of the temperature sensor
must be leading away and down from
the sensor to enable proper fit of
burner cap retainer.
6. Install the burner cap retainer. U-slot
must be located above temperature
sensor.
7. Re-attach wiring connector.
8. Install oven cover.
b.
RTD Detector
1. Refer to Figure 4-4A. Remove the
four screws on the oven cover, remove cover.
2. Refer to Figure 4-5. Loosen the set
screw securing RTD detector.
3. Disconnect RTD detector wiring connector, note location.
4. Gently grasp RTD detector wires and
pull out of hole.
Igniter
5. Re-attach wiring connector.
6. Install oven cover
d.
Flameout Sensor
1. Refer to Figure 4-4A. Remove the
four screws on the oven cover, remove cover.
2. Refer to Figure 4-5. Disconnect the
flameout detector wiring connector,
note location.
3. Lift up the burner cap until flameout
sensor is accessible. Using an openend wrench, unscrew the flameout
detector from the burner. Verify that
o-ring is also removed.
4. Install replacement flameout detector
and new o-ring. Using open-end
wrench, snug down. Do not overtighten!
5. Re-attach wiring connector.
6. Install oven cover.
4-6
Maintenance and Service
Rosemount Analytical Inc.
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Instruction Manual
760004-A
February 2002
Model NGA 2000 HFID
Retainer, Burner Cap
Burner Cap
O-Ring
903736
Igniter Assembly
657205
Temperature Sensor
657468
O-Ring
903737
Flameout Sensor
657199
RTD Detector
657063
Set Screw
M3X0.5 x 10mm
903125
The components shown can be replaced without removing burner/thermal block from oven.
Oven not shown for clarity.
Thermal block shown in phantom for clarity.
Figure 4-5. Burner - Sensor, Flameout Detector, RTD Detector and Igniter
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Maintenance and Service
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Instruction Manual
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February 2002
Model NGA 2000 HFID
4-4 BURNER INTERNAL COMPONENTS
2. Remove burner/thermal block from
oven per Section 4-2b.
WARNING
3. Refer to Figure 4-6. Disconnect sample capillary nut at base of burner.
BURNER CONTAMINATION
Do not handle internal parts of the burner
with bare hands. All tools used for maintenance must be free of contaminates.
a.
4. Remove screw securing thermal block
to burner.
5. Carefully pull burner away from thermal block.
Disassembly of Burner/Thermal Block
1. Remove oven from analyzer module
per Section 4-2a.
Burner
Sample capillary
input
Thermal Block
Sample capillary
Figure 4-6. Burner/Thermal Block Disassembly
4-8
Maintenance and Service
Rosemount Analytical Inc.
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Instruction Manual
760004-A
February 2002
Model NGA 2000 HFID
b.
1. Remove oven from analyzer module
per Section 4-2a.
Replacing Burner Jets
Disassemble the burner only if contaminants are evident. Combustion products
or other contaminates which accumulate
inside the burner may form electrical
leakage paths between the collector and
the burner contact, resulting in noisy
readings.
2. Remove burner/thermal block from
oven per Section 4-2b.
3. Remove thermal block from burner
per Section 4-4a.
4. Refer to Figure 4-7A. Remove
screws (2) holding burner cap retainer, remove retainer.
If the analyzer module is to be operated at
the highest sensitivity, traces of such
contaminates can cause erroneous readings. For best performance, replace the
burner jet follows:
5. Holding burner base, lift burner cap
off of assembly, set aside, remove
gasket.
WARNING
6. Refer to Figure 4-7B. Holding burner
base, lift combustion chamber off, set
aside.
BURNER CONTAMINATION
Do not handle internal parts of the burner
with bare hands. All tools used for maintenance must be free of contaminates.
A
Burner Cap
Retainer
B
Combustion
Chamber
Burner Cap
O-Ring
904373
Gasket
656931
Burner Base
Burner Base
Figure 4-7. Burner Disassembly
Rosemount Analytical Inc.
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Maintenance and Service
4-9
Instruction Manual
760004-A
February 2002
Model NGA 2000 HFID
7. Refer to Figure 4-8. Lift air baffle out
of burner base.
9. Remove the jet nut. Grasp jet assembly and lift out (along with upper
gasket) of burner base. Remove
bottom gasket.
8. Remove the sample jet and gasket
from the bottom of the burner base.
Air Baffle (Ref)
102260
See Below
Nut, Jet
657016
Gasket
102273
Jet Assembly
657012
Gasket
102256
Air Baffle
End bent to raise it above the tab a
distance equal to the height of the tab.
Sample Jet
657005
≈ .06
Position with tab over
the air hole
(approximately 1/16” to
the right).
Figure 4-8. Burner Jets
4-10
Maintenance and Service
Rosemount Analytical Inc.
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Instruction Manual
760004-A
February 2002
Model NGA 2000 HFID
c.
Burner Jet Installation
WARNING
BURNER CONTAMINATION
4. Install air baffle per Figure 4-8.
NOTE
Incorrect installation of air baffle will
cause ignition failure.
Do not handle internal parts of the burner
with bare hands. All tools used for maintenance must be free of contaminates.
5. See Figure 4-7B. Insert new o-ring
into burner base.
1. Install new lower gasket, jet assembly
and upper gasket into burner base,
finger-tight jet nut.
2. Install new sample jet (with gasket)
and tighten.
3. Tighten jet nut.
Rosemount Analytical Inc.
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6. Set combustion chamber into burner
base being careful not to move air
baffle.
7. See Figure 4-7A. Insert new gasket
on combustion chamber, install
burner cap and burner cap retainer,
torque screws to 6 inch lbs.
Maintenance and Service
4-11
Instruction Manual
760004-A
February 2002
Model NGA 2000 HFID
4-5 THERMAL BLOCK
2. Disconnect the sample RTD wiring
connector, note location.
The sample RTD can be replaced with the
thermal block attached to burner and mounted
in oven. The cartridge heater and thermostat
are also replaceable with thermal block secured to burner, but must be removed from
the oven.
a.
3. Refer to Figure 4-9. Remove the two
screws securing the sample RTD, pull
sample RTD out.
4. Install replacement sample RTD, secure with screws.
Sample RTD
5. Attach sample RTD wiring connector.
1. Refer to Figure 4-4A. Remove the
four screws securing the oven cover,
remove cover.
6. Re-attach oven cover.
Sample RTD
657061
Cartridge Heater
659643
Thermostat
657065
Figure 4-9. Thermal Block – Sample RTD, Cartridge Heater and Thermostat
4-12
Maintenance and Service
Rosemount Analytical Inc.
A Division of Emerson Process Management
Instruction Manual
760004-A
February 2002
Model NGA 2000 HFID
b.
Cartridge Heater
5. Install burner/thermal block into oven.
1. Remove oven from analyzer module
per Section 4-2a.
6. Install oven into analyzer module.
d.
2. Remove burner/thermal block from
oven per Section 4-2b.
3. Refer to Figure 4-9. Loosen retaining
set screw, pull out cartridge heater.
4. Install replacement cartridge heater,
snug down set screw.
Sample Capillary
1. Remove oven from analyzer module
per Section 4-2a
2. Remove burner/thermal block from
oven per Section 4-2b.
3. Remove burner from thermal block
per Section 4-4a
5. Install burner/thermal block into oven.
6. Install oven into analyzer module.
c.
4. Refer to Figure 4-10. Remove the
two screws securing the capillary
cover to thermal block, remove cover.
Thermostat
1. Remove oven from analyzer module
per Section 4-2a
5. Remove capillary nut, remove capillary.
6. Install replacement capillary.
2. Remove burner/thermal block from
oven per Section 4-2b.
3. Refer to Figure 4-9. Remove the two
retaining screws, pull thermostat out.
7. Insert capillary into thermal block.
The capillary may require bending to
fit.
8. Install cover.
4. Install replacement thermostat, attach
with the two retaining screws.
Capillary
Cover
Figure 4-10. Thermal Block Assembly
Rosemount Analytical Inc.
A Division of Emerson Process Management
Maintenance and Service
4-13
Instruction Manual
760004-A
February 2002
Model NGA 2000 HFID
Sensor Board
Case Temperature Sensor
Case Pressure Switch
4-6 ELECTRONICS ASSEMBLY
The electronics assembly must be removed
from the chassis if replacement of any of the
following components is necessary:
Power Supply Board
Safety Board
Computer Analysis Board
Preamp Assembly
1. Remove the hex nut and screw as
shown in Figure 4-11.
2. Lay electronics assembly on bench,
do not disconnect cables or tubing.
Electronics Assembly
656943
Screw
Hex Nut
Figure 4-11. Removing Electronics Assembly from Chassis
4-14
Maintenance and Service
Rosemount Analytical Inc.
A Division of Emerson Process Management
Instruction Manual
760004-A
February 2002
Model NGA 2000 HFID
Preamp Assembly
656945
Case Pressure Purge
Switch 903690
Computer Analysis Board
659149
Sensor Board
657060
Safety Board
657499
Power Supply Board
655764
Case Temperature Sensor
656026
Figure 4-12. Electronics Assembly – Exploded View
a.
Printed Circuit Boards
When replacing a circuit board, the following procedure is recommended:
Per Section 4-6, remove securing hardware from electronics assembly and lay
on bench.
Rosemount Analytical Inc.
A Division of Emerson Process Management
Remove securing hardware from printed
circuit board to be replaced, do not disconnect cable(s).
One at a time, remove the wiring connectors and attach to replacement board.
Mount replacement board to electronics
assembly.
Maintenance and Service
4-15
Instruction Manual
760004-A
February 2002
b.
Model NGA 2000 HFID
Case Temperature Sensor
1. Per Section 4-6, remove securing
hardware from electronics assembly
and lay on bench.
2. Disconnect case temperature sensor
cable.
4. Remove case temperature sensor
from cable clamp holder.
5. Per Figure 4-13 insert replacement
case temperature sensor into cable
clamp holder.
6. Re-assemble to signal board mounting screw.
3. Remove screw securing cable clamp
holder to signal board.
Center sensor in cable
clamp
Figure 4-13. Case Sensor Installation
4-16
Maintenance and Service
Rosemount Analytical Inc.
A Division of Emerson Process Management
Instruction Manual
760004-A
February 2002
Model NGA 2000 HFID
c.
Case Pressure Purge Switch
3. Disconnect tube at pressure switch.
1. Per Section 4-6, remove securing
hardware from electronics assembly
and lay on bench.
4. Remove mounting screws (2) and
washers (2).
2. Disconnect the two electrical terminals, note location.
5. Reverse procedure for installation of
replacement switch.
Case Pressure Purge
Switch 903690
The bracket does not have to be removed from the electronics assembly for this
procedure.
Figure 4-14. Case Pressure Purge Switch Installation
Rosemount Analytical Inc.
A Division of Emerson Process Management
Maintenance and Service
4-17
Instruction Manual
760004-A
February 2002
d.
Model NGA 2000 HFID
4. Remove the lower bracket from the
preamp assembly and install on replacement preamp assembly.
Preamp Assembly
1. Per Section 4-6, remove securing
hardware from electronics assembly
and lay on bench.
5. Slide replacement preamp assembly
into top bracket and secure with
mounting hardware.
2. Disconnect and note location of cables.
6. Re-connect cables.
3. Remove the two screws and washers
from the top bracket and slide the
preamp assembly out.
Top Bracket
Preamp Assembly
656945
Bottom Bracket
Figure 4-15. Preamp Assembly Installation
4-18
Maintenance and Service
Rosemount Analytical Inc.
A Division of Emerson Process Management
Instruction Manual
760004-A
February 2002
Model NGA 2000 HFID
4-7 FAN ASSEMBLY
1. Disconnect and note location of cables.
2. Remove the two hex nuts securing the fan
to the chassis, lift fan assembly out.
Fan Assembly
657414
Figure 4-16. Fan Assembly Installation
Rosemount Analytical Inc.
A Division of Emerson Process Management
Maintenance and Service
4-19
Instruction Manual
760004-A
February 2002
Model NGA 2000 HFID
4-8 FLOW CONTROLLER
1. Disconnect the all tubing and wiring connectors, note locations.
2. Remove the four hex nuts securing the
flow controller assembly to the analyzer
module chassis.
Flow Controller Assembly
657434
Figure 4-17. Flow Controller Replacement
4-20
Maintenance and Service
Rosemount Analytical Inc.
A Division of Emerson Process Management
Instruction Manual
760004-A
February 2002
Model NGA 2000 HFID
Regulated Air In
Regulator 250 psi
023382
Remove red cap
after installation
FLOW
Regulated Air Out
Sample Sensor
656418
Remove and discard bracket supplied with regulator, assembly as shown.
Figure 4-18. Flow Controller Assembly
Rosemount Analytical Inc.
A Division of Emerson Process Management
Maintenance and Service
4-21
Instruction Manual
760004-A
February 2002
Model NGA 2000 HFID
4-9 DC POWER SUPPLY MODULE
Disconnect and note location of all wiring to
DC power supply module.
Remove the two hex nuts securing module to
chassis, remove module.
DC Power Supply Module
Figure 4-19. DC Power Supply Module Replacement
4-22
Maintenance and Service
Rosemount Analytical Inc.
A Division of Emerson Process Management
Instruction Manual
760004-A
February 2002
Model NGA 2000 HFID
4-10 FRONT PANEL COMPONENTS
•
The following components are mounted to the
front panel:
•
•
•
•
•
LON/Power Module
Manual Ignite Toggle Switch
•
•
•
Connector
fitting
•
•
•
LED Indicator Assembly
Purge Air Regulator
Purge Air Flow Switch
Burner Air Solenoid Valve
Burner Air Regulator
Fuel Regulator
Burner Air Sensor
Fuel Sensor
Air Ignite Restrictor
Air Measurement Restrictor
Burner Air Solenoid Valve
656219
Air Measurement Restrictor 656888
Regulator Mounting Nut
Diffuser
657548
Air Ignite Restrictor
655794
Regulator Mounting Bracket
Purge Air Flow
Switch 656533
Purge Air Regulator
871672
Burner Air Sensor
656443
LON/Power Module
656560
Male Adapter
Fitting
Plugs
Fuel Sensor
656444
Manual Ignite
Toggle Switch
657053
O-Ring
010177
Sensor Fittings
657412
LED Indicator Assembly
657029
O-Ring
011167
Burner Air Regulator
902832
Fuel Regulator
902832
O-Rings
008025
Toggle Switch Seal
898980
Figure 4-20. Front Panel – Exploded View
Rosemount Analytical Inc.
A Division of Emerson Process Management
Maintenance and Service
4-23
Instruction Manual
760004-A
February 2002
Model NGA 2000 HFID
The front panel can now be pulled away
from the chassis.
Replacing Front Panel Components
1. To access components, remove the
four front panel mounting screws (two
on front, one on each side).
NOTE
The wiring from front panel components is still connected. Do not disconnect unless replacing that
component.
2. Remove the burner air regulator and
fuel regulator mounting nuts.
3. Remove the purge air regulator
mounting bracket screws.
Front panel mounting screw
(opposite side also)
Front panel
mounting screws
Figure 4-21. Accessing Front Panel Components
4-24
Maintenance and Service
Rosemount Analytical Inc.
A Division of Emerson Process Management
Instruction Manual
760004-A
February 2002
Model NGA 2000 HFID
a.
LON/Power Module
d.
1. Disconnect wiring connectors, note
locations.
1. Disconnect wiring connector, note location.
2. Refer to Figure 4-20. From the outside of the front panel, remove the
two mounting screws.
2. Using an open-end wrench to hold the
sensor fitting while using another
open-end wrench to remove the sensor.
3. Install replacement module in reverse
order.
b.
Burner Air Sensor
3. Replace the Teflon pipe thread tape
on the treads of the sensor fitting.
LED Indicator Assembly
4. Install sensor onto sensor fitting.
1. Disconnect wiring connector, note location.
2. Refer to Figure 4-20. From the inside
of the front panel, remove the two hex
nuts securing LED indicator assembly
to front panel. Remove indicator assembly and o-rings (four).
5. Re-connect wiring connector.
e.
1. Disconnect wiring connector, note location.
2. Using an open-end wrench to hold the
sensor fitting while using another
open-end wrench to remove the sensor.
3. Inspect o-rings for damage, replace if
necessary. Install o-rings on replacement indicator assembly, mount
assembly on mounting studs with hex
nuts.
3. Replace the Teflon pipe thread tape
on the treads of the sensor fitting.
4. Re-connect wiring connector.
c.
4. Install sensor onto sensor fitting.
Manual Ignite Toggle Switch
1. Disconnect wiring connector, note location.
Fuel Sensor
5. Re-connect wiring connector.
f.
Burner Air and Fuel Regulators
2. Refer to Figure 4-20. From the outside of the front panel, remove the
toggle switch seal.
1. Disconnect the two tubes and the
sensor fitting on the rear of the regulator, note locations.
3. Pull the switch and o-ring out from inside the front panel.
2. Replace the Teflon pipe thread tape
on the threads of the sensor fitting.
4. Inspect o-ring for damage, replace if
necessary. Install o-ring on replacement switch, insert through front
panel from the inside.
3. Remove the regulator and o-ring.
5. Install switch seal.
4. The replacement regulator comes
with two panel mounting nuts, remove
both and discard one of them.
6. Re-connect wiring connector.
Rosemount Analytical Inc.
A Division of Emerson Process Management
Maintenance and Service
4-25
Instruction Manual
760004-A
February 2002
5. Inspect o-ring for damage, replace if
necessary. Install o-ring onto regulator threaded shaft.
Model NGA 2000 HFID
i.
Burner Air Solenoid Valve
1. Disconnect the tube at the top elbow
fitting.
6. Insert regulator into front panel, secure with mounting nut.
2. Disconnect the tube at the tee fitting,
remove valve analyzer module.
7. Re-attach the three tubes.
g.
Purge Air Regulator
3. Holding the air ignite restrictor, unscrew the solenoid valve.
1. Remove the regulator mounting nut,
remove mounting bracket.
4. On the solenoid valve, remove the
connector fitting.
2. Loosen nut on tee fitting attached to
purge air flow switch.
5. Replace the Teflon pipe thread tape
on the elbow, connector and restrictor.
3. Disconnect tube at elbow, remove
regulator.
6. Verify replacement solenoid valve
wires (flat side of body) are exiting on
the same side as the COM port as
shown in Figure 4-20. If not, use an
open-end wrench to hold the N.O. hex
port while rotating body.
4. Remove the two plugs, elbow and
male adapter fittings from the regulator.
5. Replace the Teflon pipe thread tape
on the two plugs, the elbow and the
male adapter and install into replacement regulator.
7. Install air ignite restrictor into N.C.
port.
8. Install elbow into COM port and connector fitting into N.O. port.
6. Connect tube to elbow, insert male
adapter into tee fitting.
9. Re-connect tubes.
7. Install mounting bracket onto regulator, hand snug mounting nut.
8. Attach mounting bracket to front
panel, tighten regulator mounting nut.
h.
Purge Air Flow Switch and Diffuser
1. Unscrew flow switch from tee fitting.
2. Replace Teflon pipe thread tape on
tee fitting.
3. Remove diffuser from flow switch and
install into replacement flow switch.
4. Install replacement flow switch.
5. Install purge switch onto tee fitting.
6. Re-connect tubes.
4-26
Maintenance and Service
j.
Air Ignite Restrictor
1. On the burner air solenoid valve:
a. Disconnect the tube at the top elbow fitting.
b. Disconnect tube at tee fitting.
c. Lift solenoid valve from analyzer
module.
d. Disconnect tube going to air ignite
restrictor.
e. Remove restrictor from solenoid
valve.
2. Add Teflon pipe thread tape to replacement restrictor, install into
solenoid.
3. Re-connect tubes to restrictor, elbow
and tee fitting.
Rosemount Analytical Inc.
A Division of Emerson Process Management
Instruction Manual
760004-A
February 2002
Model NGA 2000 HFID
4-11 REAR PANEL COMPONENTS
•
•
The following components are mounted to the
rear panel:
•
•
•
Fuel In 2-Way Solenoid Valve
Regulated Air In Check Valve
Burner Air In Filter
Heated Sample Bypass Out Restrictor
Heated Sample In Restrictor
VIEW FROM INSIDE ANALYZER MODULE
Check Valve, Regulated Air In
903728
Solenoid Valve, Fuel In
656218
VIEW FROM OUTSIDE ANALYZER MODULE
Filter, Burner Air In
017154
Restrictor, Heated Sample
Bypass Out – 10 Micron
619615
Restrictor, Heated
Sample In – 40 Micron
619616
Figure 4-22. Rear Panel Components
Rosemount Analytical Inc.
A Division of Emerson Process Management
Maintenance and Service
4-27
Instruction Manual
760004-A
February 2002
a.
Model NGA 2000 HFID
into the bulkhead fitting to force out
the filter disc.
Fuel In 2-Way Solenoid Valve
1. Disconnect wiring solenoid valve wiring connector, note location.
3. Install the replacement filter in the
same manner, through the rear of the
bulkhead fitting.
2. Inside the analyzer module, disconnect the tube going to the connector
on the “out” port of the solenoid valve.
3. On the rear of the analyzer module at
the fuel in port:
4. Re-connect tubes.
c.
Heated Bypass Sample Out and Heated
Sample In Restrictors
1. On the outside of the rear panel, disconnect tube and remove nut.
a. Disconnect the fuel in tube.
b. Remove nuts and washers.
c.
4. Remove the fittings from the solenoid
valve and replace the Teflon pipe
thread tape.
b.
3. Install in reverse order.
d.
Regulated Air In Check Valve
5. Verify that body of replacement solenoid valve is oriented as shown in
Figure 4-22. If not, rotate till wires are
in-line with “out” port.
1. Disconnect tube at elbow.
6. Install fittings into replacement solenoid valve, re-install in analyzer module.
3. Remove elbow from check valve.
Burner Air In Filter
1. Leaving the bulkhead fitting secured
to the rear panel, remove the tubes,
nuts and ferrules from the fitting.
2. Insert a clean, rigid piece of tube or
rod (smaller than .25 inch diameter)
4-28
2. Insert a small spade screwdriver into
the bulkhead and remove the restrictor.
Remove solenoid valve from
analyzer module
Maintenance and Service
2. Remove check valve from female
connector.
4. Add Teflon pipe thread tape to check
valve threads.
5. Install elbow onto check valve.
6. Install check valve into female connector, verifying orientation of elbow
fitting as shown in Figure 4-22.
Rosemount Analytical Inc.
A Division of Emerson Process Management
Instruction Manual
760004-A
February 2002
Model NGA 2000 HFID
SECTION 5
TROUBLESHOOTING
5-1 TROUBLESHOOTING CHECKLIST
a.
Safety System
1. Verify purge supply pressure at bulkhead is between 10 and 20 psig.
b.
Ignition
1. Verify that the fuel pressure/flow is
correct.
2. Verify that the burner air pressure/flow is correct.
2. Check case for leaks.
3. Check burner for leaks.
3. Verify that the igniter is generating
enough heat.
4. Verify purge pressure sensor tube
connection.
4. Verify the burner exhaust is vented to
atmosphere.
5. Verify purge out port is vented to atmospheric pressure.
5. Verify safety system has been activated.
6. Verify Safety PCB connector J2 is
attached.
6. Verify the manual switch is operating
correctly.
7. Check for a +24V power glitch.
7. Verify auto-ignite parameters are
properly set.
8. Verify that there is no large vibration
shock.
8. Verify burner is properly sealed.
9. Check for external leak in purge line.
9. Verify quality of air supply is good.
10. Verify case pressure is greater than
0.5” of water.
10. Verify quality of fuel supply is good.
11. Check burner tip for damage.
11. Check case for over-pressurization.
12. Verify the purge flow/pressure switch
harness is routed away from the solenoid valves.
12. Check air and fuel restrictor for correct flow.
13. Check burner tip alignment.
13. Verify the purge timer is counting.
14. Verify burner cone is tight.
14. Verify purge timer jumper is correctly
installed.
15. Check burner air and fuel lines for
leaks.
15. Verify Internal purge pressure is
greater than 5.5 psig.
16. Verify oven temperature is greater
than 85°C.
16. Verify the purge gas switch has been
activated.
17. Verify the reference thermistor is
100K ohm ±15% at 25°C.
Rosemount Analytical Inc.
A Division of Emerson Process Management
Troubleshooting
5-1
Instruction Manual
760004-A
February 2002
18. Verify that there is +10VDC to the
reference thermistor.
c.
Model NGA 2000 HFID
d.
Noise
Drift
1. Check that the burner exhaust is free
from water condensation.
1. Verify that the sample, burner air, and
fuel supply pressures are constant.
2. Verify connection to the collector is
correct.
2. Check that the tubing, regulators,
pumps, fittings, and valves are clean
of hydrocarbons.
3. Verify connection to the polarizing
voltage is correct.
3. Verify that the oxygen level in the
burner air and sample are constant.
4. Verify the THC level is correct for the
burner air and fuel supply.
5. Check that the ambient temperature
is changing <10°C per hour.
4. Check the ambient temperature is
changing <10°C per hour.
5. Verify the +24VDC is clean and
grounded properly.
6. Verify there are no strong magnetic
fields near.
7. Check for excessive vibration.
6. Verify the burner is clean.
7. Verify temperature of the sample gas,
case, burner, and oven has stabilized.
8. Verify burner exhaust is vented to a
constant atmospheric pressure.
8. Verify the Preamp PCB is clean.
9. Verify bypass line is vented to a constant atmospheric pressure.
9. Verify atmospheric pressure at burner
exhaust is constant.
10. Verify purge out port vented to a constant atmospheric pressure.
10. Verify purge gas pressure is constant.
11. Verify the collector wires are routed
away from the heater.
11. Verify burner has been on and stabilized.
12. Verify the collector wires are clean
and not damaged.
12. Check for gas leaks.
5-2
Troubleshooting
Rosemount Analytical Inc.
A Division of Emerson Process Management
Instruction Manual
760004-A
February 2002
Model NGA 2000 HFID
SECTION 6
REPLACEMENT PARTS
WARNING
PARTS INTEGRITY
Tampering with or unauthorized substitution of components may adversely affect safety of this product.
Use only factory-approved components for repair.
6-1 MATRIX
Each analyzer is configured per the customer sales order. Below is the HFID sales matrix which lists the
various configurations available.
To identify the configuration of an analyzer, locate the analyzer name-rating plate. The 12-position sales
matrix identifier number appears on the analyzer name-rating plate.
HFID
Heated Flame Ionization Detection Analyzer Module
Code
01
02
99
Software Version
Standard
2.3 Version Software
Special
Code
A1
A2
H1
99
Configuration Identifier
Mixed Fuel, 4 Selectable Ranges: 0-10 to 0-10,000 ppm CH4
Mixed Fuel, 4 Selectable Ranges: 0-100 to 0-10,000 ppm CH4
Mixed Fuel, 4 Selectable Ranges: 0-100 ppm to 0-5% CH4
Special Calibrated Ranges
Code
00
A1
B1
Cable Selection
None
Standard (3 ft LON and Pwr AM to Platform)
System (10 ft LON and Pwr AM to 30A PS)
Code
00
G1
99
HFID
01
Rosemount Analytical Inc.
A1
A1
00
Special Requirements
None
Customer Option
Special
Example
A Division of Emerson Process Management
Replacement Parts
6-1
Instruction Manual
760004-A
February 2002
Model NGA 2000 HFID
6-2 GENERAL
813344
903107
657029
656560
657413
657053
657414
656943
Fuse, 6A
Fuse, Thermal Cutoff 72° (2 Required - Safety and Power Supply PCB’s)
LED Indicator Assembly
LON/Power Module
DC Power Supply Module
Manual Ignite Switch Assembly
Fan Assembly
Electronics Assembly
659149
Computer Board
656945
Preamp Assembly
657499
Safety Board
655764
Power Supply Board
657060
Sensor Board
656026
Case Temperature Sensor
6-3 PNEUMATICS
017154
902832
657434
871672
655794
656888
656443
656444
656418
656219
656218
903690
656533
903728
903647
6-2
Filter, .25 DIA x .06 -.09 THK 50-100 Microns (Burner Air)
Regulator 0 - 60 PSI (Fuel and Burner Air)
Fixed Flow Controller Assembly
023382
Regulator 250 psi
656418
Sample Sensor
Purge Air Regulator
Air Ignite Restrictor
Air Measurement Restrictor
Burner Air Sensor
Fuel Sensor
Flow Control Sample Pressure Sensor
Burner Air 3-Way Solenoid Valve
Fuel In Solenoid Valve
Case Pressure Purge Switch
Purge Air Flow Switch
Regulated Air In Check Valve
Case Pressure Relief Valve
Replacement Parts
Rosemount Analytical Inc.
A Division of Emerson Process Management
Instruction Manual
Model NGA 2000 HFID
760004-A
February 2002
6-4 OVEN COMPONENTS
659551
Rosemount Analytical Inc.
Oven Assembly
657359
Burner Assembly
657205
Igniter Assembly
903736
O-Ring (Igniter Assembly)
657063
RTD Detector
903125
Set Screw M3X0.5 x 10mm (RTD Detector)
657468
Temperature Sensor
657199
Flameout Sensor
903737
O-Ring (Flameout Sensor)
656931
Gasket
904373
O-Ring
102260
Air Baffle
657016
Jet Nut
102273
Gasket
657012
Jet Assembly
102256
Gasket
657005
Sample Jet
659614
Thermal Block Assembly
657486
Capillary, Mixed Fuel (Lo) 9.7 cc/min @ 3.5 psig
657550
Capillary, Mixed Fuel (Hi) 2.5 cc/min @ 3.5 psig
657061
Sample RTD
659618
Heated Bypass Sample Out Restrictor Assembly – 10 Microns
659615 Restrictor, Heated Bypass Sample Out – 10 Microns
659619
Heated Sample In Restrictor Assembly – 40 Microns
659616 Restrictor, Heated Sample In – 40 Microns
657065
Thermostat 450°F
659643
Cartridge Heater
A Division of Emerson Process Management
Replacement Parts
6-3
Instruction Manual
760004-A
February 2002
6-4
Replacement Parts
Model NGA 2000 HFID
Rosemount Analytical Inc.
A Division of Emerson Process Management
Instruction Manual
760004-A
February 2002
Model NGA 2000 HFID
SECTION 7
RETURN OF MATERIAL
7-1 RETURN OF MATERIAL
If factory repair of defective equipment is required, proceed as follows:
1. Secure a return authorization from a
Rosemount Analytical Inc. Sales Office or
Representative before returning the
equipment. Equipment must be returned
with complete identification in accordance
with Rosemount instructions or it will not
be accepted.
Rosemount CSC will provide the shipping
address for your instrument.
In no event will Rosemount be responsible for equipment returned without proper
authorization and identification.
2. Carefully pack the defective unit in a
sturdy box with sufficient shock absorbing
material to ensure no additional damage
occurs during shipping.
3. In a cover letter, describe completely:
•
The symptoms that determined the
equipment is faulty.
• The environment in which the equipment was operating (housing,
weather, vibration, dust, etc.).
• Site from where the equipment was
removed.
• Whether warranty or non-warranty
service is expected.
• Complete shipping instructions for the
return of the equipment.
4. Enclose a cover letter and purchase order
and ship the defective equipment according to instructions provided in the
Rosemount Return Authorization, prepaid,
to the address provided by Rosemount
CSC.
Rosemount Analytical Inc.
Process Analytical Division
Customer Service Center
1-800-433-6076
tions listed in the standard Rosemount warranty, the defective unit will be repaired or
replaced at Rosemount’s option, and an operating unit will be returned to the customer in
accordance with the shipping instructions furnished in the cover letter.
For equipment no longer under warranty, the
equipment will be repaired at the factory and
returned as directed by the purchase order
and shipping instructions.
7-2 CUSTOMER SERVICE
For order administration, replacement Parts,
application assistance, on-site or factory repair, service or maintenance contract information, contact:
Rosemount Analytical Inc.
Process Analytical Division
Customer Service Center
1-800-433-6076
7-3 TRAINING
A comprehensive Factory Training Program of
operator and service classes is available. For
a copy of the Current Operator and Service
Training Schedule contact the Technical
Services Department at:
Rosemount Analytical Inc.
Phone: 1-714-986-7600
FAX: 1-714-577-8006
If warranty service is expected, the defective
unit will be carefully inspected and tested at
the factory. If the failure was due to the condi-
Rosemount Analytical Inc.
A Division of Emerson Process Management
Return of Material
7-1
Instruction Manual
760004-A
February 2002
7-2
Return of Material
Model NGA 2000 HFID
Rosemount Analytical Inc.
A Division of Emerson Process Management
Instruction Manual
760004-A
February 2002
Model NGA 2000 HFID
SECTION 8
APPENDIX A - MENU DISPLAYS
Menu: 0 ANALOP
Menu: 1 ANALSET
MENU: 2 FLOCHEK
Rosemount Analytical Inc.
A Division of Emerson Process Management
Appendix A – Menu Displays
8-1
Instruction Manual
760004-A
February 2002
Model NGA 2000 HFID
MENU: 3 FLOCHEKI1
MENU: 4 ACALSET
MENU: 5 APARLST
8-2
Appendix A - Menu Displays
Rosemount Analytical Inc.
A Division of Emerson Process Management
Instruction Manual
Model NGA 2000 HFID
760004-A
February 2002
MENU: 6 ANALSETI1
MENU: 7 CALLIST
MENU: 8 CALLISTI1
Rosemount Analytical Inc.
A Division of Emerson Process Management
Appendix A – Menu Displays
8-3
Instruction Manual
760004-A
February 2002
Model NGA 2000 HFID
MENU: 9 ACALSETI1
MENU: 10 APARLSTI1
MENU: 11 AMMAN
8-4
Appendix A - Menu Displays
Rosemount Analytical Inc.
A Division of Emerson Process Management
Instruction Manual
Model NGA 2000 HFID
760004-A
February 2002
MENU: 12 AMMANI1
MENU: 13 AMSVC
MENU: 14 AMSVCI1
Rosemount Analytical Inc.
A Division of Emerson Process Management
Appendix A – Menu Displays
8-5
Instruction Manual
760004-A
February 2002
Model NGA 2000 HFID
MENU: 15 ADIAG
MENU: 16 AMPWR
MENU: 17 AM1V
8-6
Appendix A - Menu Displays
Rosemount Analytical Inc.
A Division of Emerson Process Management
Instruction Manual
Model NGA 2000 HFID
760004-A
February 2002
MENU: 18 AMTEMP
MENU: 19 AMMISC
MENU: 20 AMTREND
Rosemount Analytical Inc.
A Division of Emerson Process Management
Appendix A – Menu Displays
8-7
Instruction Manual
760004-A
February 2002
Model NGA 2000 HFID
MENU: 21 ADIAGI1
MENU: 22 RANGESETAM
MENU: 23 RANGESSETI1
8-8
Appendix A - Menu Displays
Rosemount Analytical Inc.
A Division of Emerson Process Management
Instruction Manual
Model NGA 2000 HFID
760004-A
February 2002
MENU: 24 LINRANGE1
MENU: 25 LINRANGE2
MENU: 26 LINRANGE3
Rosemount Analytical Inc.
A Division of Emerson Process Management
Appendix A – Menu Displays
8-9
Instruction Manual
760004-A
February 2002
Model NGA 2000 HFID
MENU: 27 LINRANGE4
MENU: 28 LINRANGE0
MENU: 29 AMPWRI1
8-10
Appendix A - Menu Displays
Rosemount Analytical Inc.
A Division of Emerson Process Management
Instruction Manual
Model NGA 2000 HFID
760004-A
February 2002
MENU: 30 FLOCHEK1I1
MENU: 31 FILTER
MENU: 32 AM1VI1
Rosemount Analytical Inc.
A Division of Emerson Process Management
Appendix A – Menu Displays
8-11
Instruction Manual
760004-A
February 2002
Model NGA 2000 HFID
MENU: 33 AMTEMPI1
MENU: 34 AM2VA
MENU: 35 PLIMITSA
8-12
Appendix A - Menu Displays
Rosemount Analytical Inc.
A Division of Emerson Process Management
Instruction Manual
Model NGA 2000 HFID
760004-A
February 2002
MENU: 36 TLIMITSA
MENU: 37 AMMISCI1
MENU: 38 ANALSIMPLE
Rosemount Analytical Inc.
A Division of Emerson Process Management
Appendix A – Menu Displays
8-13
Instruction Manual
760004-A
February 2002
Model NGA 2000 HFID
MENU: 39 FILTERI1
MENU: 40 LINRANGE0I1
MENU: 41 PLIMITSAI1
8-14
Appendix A - Menu Displays
Rosemount Analytical Inc.
A Division of Emerson Process Management
Instruction Manual
Model NGA 2000 HFID
760004-A
February 2002
MENU: 42 CALFACTORS
MENU: 43 R1FACTORS
MENU: 44 RN2FACTORS
Rosemount Analytical Inc.
A Division of Emerson Process Management
Appendix A – Menu Displays
8-15
Instruction Manual
760004-A
February 2002
Model NGA 2000 HFID
MENU: 45 RN3FACTORS
MENU: 46 RN4FACTORS
MENU: 47 AMHELPINDEX
8-16
Appendix A - Menu Displays
Rosemount Analytical Inc.
A Division of Emerson Process Management
Instruction Manual
Model NGA 2000 HFID
760004-A
February 2002
MENU: 48 LINRANGE1I1
MENU: 49 CALFACTORSI1
MENU: 50 APARLST2
Rosemount Analytical Inc.
A Division of Emerson Process Management
Appendix A – Menu Displays
8-17
Instruction Manual
760004-A
February 2002
Model NGA 2000 HFID
MENU: 51 APARLST4
MENU: 52 APARLST5
MENU: 53 APARLST6
8-18
Appendix A - Menu Displays
Rosemount Analytical Inc.
A Division of Emerson Process Management
Instruction Manual
Model NGA 2000 HFID
760004-A
February 2002
MENU: 54 IGNITION
MENU: 55 LISTNOTES
MENU: 56 LIGHTFLAMEI1
Rosemount Analytical Inc.
A Division of Emerson Process Management
Appendix A – Menu Displays
8-19
Instruction Manual
760004-A
February 2002
Model NGA 2000 HFID
MENU: 57 AUTOFLAMEI1
MENU: 58 DISPLAY
MENU: 59 MPARMS
8-20
Appendix A - Menu Displays
Rosemount Analytical Inc.
A Division of Emerson Process Management
Instruction Manual
Model NGA 2000 HFID
760004-A
February 2002
MENU: 60 AMTOPINFO
MENU: 61 ANALSET2
MENU: 62 MPARMSI1
Rosemount Analytical Inc.
A Division of Emerson Process Management
Appendix A – Menu Displays
8-21
Instruction Manual
760004-A
February 2002
Model NGA 2000 HFID
MENU: 63 TLIMITSAI1
MENU: 64 IGNITIONI1
MENU: 65 SELFTEST
8-22
Appendix A - Menu Displays
Rosemount Analytical Inc.
A Division of Emerson Process Management
Instruction Manual
Model NGA 2000 HFID
760004-A
February 2002
MENU: 66 AMHELPINDEX2
MENU: 67 SOFT_DIAG
MENU: 68 CALI1
Rosemount Analytical Inc.
A Division of Emerson Process Management
Appendix A – Menu Displays
8-23
Instruction Manual
760004-A
February 2002
Model NGA 2000 HFID
MENU: 69 AM2VC
MENU: 70 AM2VD
MENU: 71 OVENTEMP
8-24
Appendix A - Menu Displays
Rosemount Analytical Inc.
A Division of Emerson Process Management
Instruction Manual
Model NGA 2000 HFID
760004-A
February 2002
MENU: 72 LINFUNCT
MENU: 73 POLYSETUP
MENU: 74 MIDPOINT1
Rosemount Analytical Inc.
A Division of Emerson Process Management
Appendix A – Menu Displays
8-25
Instruction Manual
760004-A
February 2002
Model NGA 2000 HFID
MENU: 75 POLYGAS1
MENU: 76 POLYSETI1
MENU: 77 POLYGAS2
8-26
Appendix A - Menu Displays
Rosemount Analytical Inc.
A Division of Emerson Process Management
Instruction Manual
Model NGA 2000 HFID
760004-A
February 2002
MENU: 78 POLYGAS3
MENU: 79 POLYGAS4
MENU: 80 POLYGAS5
Rosemount Analytical Inc.
A Division of Emerson Process Management
Appendix A – Menu Displays
8-27
Instruction Manual
760004-A
February 2002
Model NGA 2000 HFID
MENU: 81 POLYGAS6
MENU: 82 POLYGAS7
MENU: 83 POLYGAS8
8-28
Appendix A - Menu Displays
Rosemount Analytical Inc.
A Division of Emerson Process Management
Instruction Manual
Model NGA 2000 HFID
760004-A
February 2002
MENU: 84 POLYGAS9
MENU: 85 POLYGAS0
MENU: 86 MIDPOINT2
Rosemount Analytical Inc.
A Division of Emerson Process Management
Appendix A – Menu Displays
8-29
Instruction Manual
760004-A
February 2002
Model NGA 2000 HFID
MENU: 87 MIDPOINT3
MENU: 88 MIDPOINT4
MENU: 89 LIGHTFLAME
8-30
Appendix A - Menu Displays
Rosemount Analytical Inc.
A Division of Emerson Process Management
Instruction Manual
Model NGA 2000 HFID
760004-A
February 2002
MENU: 90 EXP_CAL
MENU: 91 ZEROI2
MENU: 92 EXP_CAL_DAT
Rosemount Analytical Inc.
A Division of Emerson Process Management
Appendix A – Menu Displays
8-31
Instruction Manual
760004-A
February 2002
Model NGA 2000 HFID
MENU: 93 EXP_CAL_DATI
MENU: 94 UNITS
MENU: 95 UNITSI1
8-32
Appendix A - Menu Displays
Rosemount Analytical Inc.
A Division of Emerson Process Management
Instruction Manual
Model NGA 2000 HFID
760004-A
February 2002
MENU: 96 POLYSETI2
MENU: 97 POLYSETI3
MENU: 98 RESET
Rosemount Analytical Inc.
A Division of Emerson Process Management
Appendix A – Menu Displays
8-33
Instruction Manual
760004-A
February 2002
Model NGA 2000 HFID
MENU: 99 STORE
MENU: 100 ANALOPI1A
MENU: 101 RFHIST1A
8-34
Appendix A - Menu Displays
Rosemount Analytical Inc.
A Division of Emerson Process Management
Instruction Manual
Model NGA 2000 HFID
760004-A
February 2002
MENU: 102 RFACTORSIA
MENU: 103 RFHIST2A
MENU: 104 RFHIST3A
Rosemount Analytical Inc.
A Division of Emerson Process Management
Appendix A – Menu Displays
8-35
Instruction Manual
760004-A
February 2002
Model NGA 2000 HFID
MENU: 105 RFHIST4A
MENU: 106 SW_DIAGI1
MENU: 107 TWEAKI1
8-36
Appendix A - Menu Displays
Rosemount Analytical Inc.
A Division of Emerson Process Management
Instruction Manual
Model NGA 2000 HFID
760004-A
February 2002
MENU: 108 ANALSETI3
MENU: 109 STOREDPVA
MENU: 110 ZEROI2A
Rosemount Analytical Inc.
A Division of Emerson Process Management
Appendix A – Menu Displays
8-37
Instruction Manual
760004-A
February 2002
Model NGA 2000 HFID
MENU: 111 ZEROI1A
MENU: 112 ZERO_NOW2
MENU: 113 SPAN_NOW2
8-38
Appendix A - Menu Displays
Rosemount Analytical Inc.
A Division of Emerson Process Management
Instruction Manual
Model NGA 2000 HFID
760004-A
February 2002
MENU: 114 AMMISC2
MENU: 115 MPARMS2
MENU: 116 AUTOFLAME
Rosemount Analytical Inc.
A Division of Emerson Process Management
Appendix A – Menu Displays
8-39
Instruction Manual
760004-A
February 2002
Model NGA 2000 HFID
MENU: 117 REBOOT
MENU: 118 ABOUT
MENU: 119 ABOUT1
8-40
Appendix A - Menu Displays
Rosemount Analytical Inc.
A Division of Emerson Process Management
Instruction Manual
Model NGA 2000 HFID
760004-A
February 2002
MENU: 120 ALARM1
MENU: 121 MANDATA
Rosemount Analytical Inc.
A Division of Emerson Process Management
Appendix A – Menu Displays
8-41
Instruction Manual
760004-A
February 2002
8-42
Appendix A - Menu Displays
Model NGA 2000 HFID
Rosemount Analytical Inc.
A Division of Emerson Process Management
WARRANTY
Goods and part(s) (excluding consumables) manufactured by Seller are warranted to be free from
defects in workmanship and material under normal use and service for a period of twelve (12)
months from the date of shipment by Seller. Consumables, glass electrodes, membranes, liquid
junctions, electrolyte, o-rings, etc., are warranted to be free from defects in workmanship and
material under normal use and service for a period of ninety (90) days from date of shipment by
Seller. Goods, part(s) and consumables proven by Seller to be defective in workmanship and/or
material shall be replaced or repaired, free of charge, F.O.B. Seller's factory provided that the
goods, part(s) or consumables are returned to Seller's designated factory, transportation charges
prepaid, within the twelve (12) month period of warranty in the case of goods and part(s), and in
the case of consumables, within the ninety (90) day period of warranty. This warranty shall be in
effect for replacement or repaired goods, part(s) and the remaining portion of the ninety (90) day
warranty in the case of consumables. A defect in goods, part(s) and consumables of the commercial unit shall not operate to condemn such commercial unit when such goods, part(s) and
consumables are capable of being renewed, repaired or replaced.
The Seller shall not be liable to the Buyer, or to any other person, for the loss or damage directly
or indirectly, arising from the use of the equipment or goods, from breach of any warranty, or from
any other cause. All other warranties, expressed or implied are hereby excluded.
IN CONSIDERATION OF THE HEREIN STATED PURCHASE PRICE OF THE GOODS,
SELLER GRANTS ONLY THE ABOVE STATED EXPRESS WARRANTY. NO OTHER WARRANTIES ARE GRANTED INCLUDING, BUT NOT LIMITED TO, EXPRESS AND IMPLIED
WARRANTIES OR MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE.
Limitations of Remedy. SELLER SHALL NOT BE LIABLE FOR DAMAGES CAUSED BY DELAY IN PERFORMANCE. THE SOLE AND EXCLUSIVE REMEDY FOR BREACH OF WARRANTY SHALL BE LIMITED TO REPAIR OR REPLACEMENT UNDER THE STANDARD
WARRANTY CLAUSE. IN NO CASE, REGARDLESS OF THE FORM OF THE CAUSE OF ACTION, SHALL SELLER'S LIABILITY EXCEED THE PRICE TO BUYER OF THE SPECIFIC
GOODS MANUFACTURED BY SELLER GIVING RISE TO THE CAUSE OF ACTION. BUYER
AGREES THAT IN NO EVENT SHALL SELLER'S LIABILITY EXTEND TO INCLUDE INCIDENTAL OR CONSEQUENTIAL DAMAGES. CONSEQUENTIAL DAMAGES SHALL INCLUDE, BUT
ARE NOT LIMITED TO, LOSS OF ANTICIPATED PROFITS, LOSS OF USE, LOSS OF REVENUE, COST OF CAPITAL AND DAMAGE OR LOSS OF OTHER PROPERTY OR EQUIPMENT.
IN NO EVENT SHALL SELLER BE OBLIGATED TO INDEMNIFY BUYER IN ANY MANNER
NOR SHALL SELLER BE LIABLE FOR PROPERTY DAMAGE AND/OR THIRD PARTY CLAIMS
COVERED BY UMBRELLA INSURANCE AND/OR INDEMNITY COVERAGE PROVIDED TO
BUYER, ITS ASSIGNS, AND EACH SUCCESSOR INTEREST TO THE GOODS PROVIDED
HEREUNDER.
Force Majeure. Seller shall not be liable for failure to perform due to labor strikes or acts beyond
Seller's direct control.
Instruction Manual
760004-A
February 2002
Model NGA 2000 HFID
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 gas.csc@emersonprocess.com
Fisher-Rosemount GmbH & Co.
Industriestrasse 1
63594 Hasselroth
Germany
T 49-6055-884 0
F 49-6055-884209
ASIA - PACIFIC
Fisher-Rosemount
Singapore Private Ltd.
1 Pandan Crescent
Singapore 128461
Republic of Singapore
T 65-777-8211
F 65-777-0947
EUROPE, MIDDLE EAST, AFRICA
Fisher-Rosemount Ltd.
Heath Place
Bognor Regis
West Sussex PO22 9SH
England
T 44-1243-863121
F 44-1243-845354
http://www.processanalytic.com
© Rosemount Analytical Inc. 2001
LATIN AMERICA
Fisher - Rosemount
Av. das Americas
3333 sala 1004
Rio de Janeiro, RJ
Brazil 22631-003
T 55-21-2431-1882