Rosemount Manual: NGA 2000 WCLD Wet NOx Analyzer Module SW 3.6-Rev B | Rosemount Manuals & Guides
Instruction Manual
760009-B
November 2002
Model NGA2000 WNX and WCLD
Wet NOx Sample Conversion Module and
Wet CLD Analyzer 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
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.
to ensure they continue to operate within their
• Read all instructions
prior to installing, operating, and servicing the product.
• If you do not understand any of the instructions, contact your Rosemount Analytical rep-
resentative for clarification.
• Follow all warnings, cautions, and instructions marked on and supplied with the product.
• Inform and educate your personnel in the proper installation, operation, and maintenance of
the product.
• Install your equipment as specified in the Installation Instructions of the appropriate Instruc-
tion Manual and per applicable local and national codes. Connect all products to the proper
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.
Emerson Process Management
Rosemount Analytical Inc.
Process Analytic Division
1201 N. Main St.
Orrville, OH 44667-0901
T (330) 682-9010
F (330) 684-4434
e-mail: gas.csc@EmersonProcess.com
http://www.processanalytic.com
Model NGA2000 WNX and WCLD
TABLE OF CONTENTS
PREFACE...........................................................................................................................................P-1
Definitions ...........................................................................................................................................P-1
Safety Summary .................................................................................................................................P-2
General Precautions For Handling And Storing High Pressure Gas Cylinders .................................P-5
Documentation....................................................................................................................................P-6
Compliances .......................................................................................................................................P-6
Glossary..............................................................................................................................................P-7
1.0 DESCRIPTION AND SPECIFICATIONS..............................................................................1-1
1-1 Overview...................................................................................................................................1-1
1-2 Typical Applications..................................................................................................................1-1
1-3 Specifications – Wet NOx Conversion Module ........................................................................1-6
a. Performance ...............................................................................................................1-6
b. Physical.......................................................................................................................1-6
c. Sample ........................................................................................................................1-6
d. Gas Connections ........................................................................................................1-6
1-4 Specifications - Wet CLD Analyzer Module .............................................................................1-7
a. Performance ...............................................................................................................1-7
b. Physical.......................................................................................................................1-7
c. Sample ........................................................................................................................1-7
d. Gas Connections ........................................................................................................1-8
Instruction Manual
760009-B
November 2002
2.0 INSTALLATION ....................................................................................................................2-1
2-1 Unpacking.................................................................................................................................2-1
2-2 Modification of a Conventional CLD for use in a WNX System ...............................................2-1
2-3 Assembly ..................................................................................................................................2-1
2-4 Location ....................................................................................................................................2-1
2-5 Gases .......................................................................................................................................2-2
a. Overview .....................................................................................................................2-2
b. Pneumatic Connections ..............................................................................................2-2
c. Specifications ..............................................................................................................2-2
2-6 Electrical Connections..............................................................................................................2-5
3.0 OPERATION .........................................................................................................................3-1
3-1 Overview...................................................................................................................................3-1
3-2 Displays & Operating Keys.......................................................................................................3-1
a. Menu Lines & Softkey Functionality............................................................................3-1
b. Common Function Keys..............................................................................................3-2
c. Entering & Changing Variables...................................................................................3-3
d. Starting a Function......................................................................................................3-3
e. Measure Mode Display ...............................................................................................3-4
f. Main Menu ...................................................................................................................3-4
3-3 Startup & Initialization...............................................................................................................3-7
a. Startup Procedure.......................................................................................................3-7
b. Warm-up of the WNX Module.....................................................................................3-8
c. Warm-up of the WCLD Module...................................................................................3-8
Rosemount Analytical Inc. A Division of Emerson Process Management Contents i
Instruction Manual
760009-B
November 2002
d. Binding ........................................................................................................................3-8
3-4 Routine Operation ....................................................................................................................3-8
3-5 Basic Controls and Status ........................................................................................................3-8
a. Analyzer Channel Status ............................................................................................3-9
b. Single Component Display..........................................................................................3-9
c. Multi Component Display ............................................................................................3-9
d. Basic Controls.............................................................................................................3-9
3-6 Display Controls .......................................................................................................................3-10
3-7 Analyzer And I/O, Expert Controls And Setup .........................................................................3-11
a. Range Settings ...........................................................................................................3-12
b. Physical Measurements..............................................................................................3-12
c. Concentration Alarms..................................................................................................3-13
d. Linearization Parameters............................................................................................3-13
e. Linearization Functions ...............................................................................................3-14
f. Response Time............................................................................................................3-16
g. Automatic Range Change...........................................................................................3-17
h. Display Units ...............................................................................................................3-17
i. Physical Measurements & Pressure Limits..................................................................3-18
j. Single Component Display Parameters .......................................................................3-19
3-8 Calibration Procedure...............................................................................................................3-20
a. Calibration Setup ........................................................................................................3-20
b. Basic Controls Calibration...........................................................................................3-22
c. Expert Controls Calibration .........................................................................................3-22
d. Unable to Calibrate .....................................................................................................3-24
3-9 System & Network I/O Module Controls (Setup) – System SIO .............................................3-25
a. Analog Output Setup...................................................................................................3-26
b. Serial interface setup ..................................................................................................3-28
c. Relay Outputs Setup ...................................................................................................3-29
3-10 System & Network I/O Module Controls (Setup) – System DIO ...........................................3-30
3-11 System Configuration and Diagnostics ..................................................................................3-30
a. Diagnostic Menus .......................................................................................................3-31
b. Load/Save Module Configuration ...............................................................................3-33
c. Date and Time.............................................................................................................3-33
d. Security Codes............................................................................................................3-34
e. System Reset..............................................................................................................3-35
3-12 Converter Temperature Adjustment.......................................................................................3-35
3-13 Measurement of Converter Efficiency ....................................................................................3-36
a. Test Setup for Measurement of Conversion Efficiency ..............................................3-36
b. Test Procedure ...........................................................................................................3-36
c. Subnormal Conversion Efficiency ...............................................................................3-38
d. Replacement of Converter ..........................................................................................3-38
e. Capillaries ...................................................................................................................3-38
f. TEA Scrubber ..............................................................................................................3-38
Model NGA2000 WNX and WCLD
4.0 MAINTENANCE AND SERVICE – WET NOX .....................................................................4-1
4-1 Overview...................................................................................................................................4-1
4-2 Power Fuse ..............................................................................................................................4-1
4-3 Peristaltic Pump .......................................................................................................................4-3
a. Peristaltic Pump - Replacement .................................................................................4-3
b. Replacing Peristaltic Pump Tube................................................................................4-4
4-4 Oven Components ...................................................................................................................4-5
a. Converter Thermostat .................................................................................................4-5
b. Manifold Thermistor and Case Thermistor .................................................................4-5
ii Contents Rosemount Analytical Inc. A Division of Emerson Process Management
Model NGA2000 WNX and WCLD
c. Temperature Sensor ...................................................................................................4-5
d. Converter .....................................................................................................................4-6
e. Oven Fan ....................................................................................................................4-8
f. Regulator/Manifold Assembly ......................................................................................4-9
4-5 LON/Power Module ..................................................................................................................4-11
4-6 Power Module ..........................................................................................................................4-11
4-7 Electronics Assembly ...............................................................................................................4-11
a. Computer Board..........................................................................................................4-13
b. Module Function Board...............................................................................................4-13
4-8 Exhaust Fan .............................................................................................................................4-14
a Exhaust Fan Screen ....................................................................................................4-14
4-9 Intake Fan.................................................................................................................................4-15
4-10 Dehumidifier ...........................................................................................................................4-16
5.0 MAINTENANCE AND SERVICE – WET CLD......................................................................5-2
5-1 Power Fuse Replacement........................................................................................................5-2
5-2 Fans..........................................................................................................................................5-4
a. Fan Replacement........................................................................................................5-4
b. Cleaning EMI Filters....................................................................................................5-4
5-3 Transistor Assembly Replacement ..........................................................................................5-4
5-4 Ozone Generator......................................................................................................................5-4
a. Preventive Maintenance .............................................................................................5-4
b. Replacing ....................................................................................................................5-4
5-5 Ozone Generator Power Supply Replacement......................................................................5-4
5-6 Replacing Printed Circuit Boards .............................................................................................5-6
a. Computer Board..........................................................................................................5-6
b. Signal Board ...............................................................................................................5-7
c. Driver Board ................................................................................................................5-7
d. Power Supply Board ...................................................................................................5-9
e. LON/Power Module.....................................................................................................5-10
5-7 Prom .........................................................................................................................................5-11
5-8 Pressure Switch Replacement .................................................................................................5-12
5-9 Detector ....................................................................................................................................5-13
a. Removing Detector from Analyzer Module .................................................................5-14
b. Replacing Detector Components................................................................................5-14
5-10 Vent and Pump Capillaries.....................................................................................................5-20
5-11 Sample and Ozone Pressure Sensors...................................................................................5-20
5-12 Cleanup of WCLD due to Carryover of Water from WNX Module. ........................................5-21
Instruction Manual
760009-B
November 2002
6.0 REPLACEMENT PARTS ......................................................................................................6-1
6-1 Matrix........................................................................................................................................6-1
6-2 WNX .........................................................................................................................................6-2
a. 656715 Converter .......................................................................................................6-2
b. 656769 Dehumidifier...................................................................................................6-2
6-3 WCLD .......................................................................................................................................6-2
a. Detector.......................................................................................................................6-2
7.0 RETURN OF MATERIAL......................................................................................................7-1
7-1 Return of Material.....................................................................................................................7-1
7-2 Customer Service.....................................................................................................................7-1
7-3 Training.....................................................................................................................................7-1
8.0 INDEX....................................................................................................................................8-1
Rosemount Analytical Inc. A Division of Emerson Process Management Contents iii
Instruction Manual
760009-B
November 2002
Figure 1-1. WNX Module Flow System ..........................................................................................1-2
Figure 1-2. WNX Module – Major Components .............................................................................1-3
Figure 1-3. WCLD Module Flow Diagram ......................................................................................1-4
Figure 1-4. WCLD Module – Major Components ...........................................................................1-5
Figure 2-1. Rear Panel Connections of the WNX Module..............................................................2-4
Figure 2-2. Rear Panel Connections of the WCLD Module ...........................................................2-4
Figure 2-3. WNX Intake Fan Location ............................................................................................2-4
Figure 2-4. Electrical Connections..................................................................................................2-5
Figure 2-5. WNX - Outline and Mounting Dimensions ...................................................................2-6
Figure 2-6. WCLD - Outline and Mounting Dimensions .................................................................2-7
Figure 2-7. WNX - Wiring Diagram.................................................................................................2-8
Figure 2-8. WCLD – Wiring Diagram............................................................................................2-9
Figure 3-1. Measure Mode Display ................................................................................................3-1
Figure 3-2. The Display Screen......................................................................................................3-3
Figure 3-3. Changing Variables......................................................................................................3-3
Figure 3-4. Function Confirmation..................................................................................................3-3
Figure 3-5. Main Menu Functions...................................................................................................3-4
Figure 3-6. Module Manufacturing Data Displays ..........................................................................3-5
Figure 3-7. Main Menu Sub Menus ................................................................................................3-6
Figure 3-8. Startup Display.............................................................................................................3-7
Figure 3-9. Basic Controls Menu ....................................................................................................3-9
Figure 3-10. Display Controls Menu...............................................................................................3-10
Figure 3-11. Analyzer and I/O Expert Controls and Setup Menu...................................................3-11
Figure 3-12. Expert Controls Menu ................................................................................................3-11
Figure 3-13. Range Settings Menu ................................................................................................3-12
Figure 3-14. Physical Measurements Menu...................................................................................3-12
Figure 3-15. Concentration Alarm Setup Menu..............................................................................3-13
Figure 3-16. Linearization Parameters Menu .................................................................................3-13
Figure 3-17. Linearity Coefficients Menu........................................................................................3-14
Figure 3-19. Polynomial Setup Menu .............................................................................................3-14
Figure 3-20. Gas Concentrations Menu .........................................................................................3-15
Figure 3-21. Midpoint Correction Setup Menu ...............................................................................3-15
Figure 3-22. Response time/delay Parameters..............................................................................3-16
Figure 3-23. Automatic Range Control Menu.................................................................................3-17
Figure 3-24. Actual Switch Levels Menu ........................................................................................3-17
Figure 3-25. Display Units Menu ....................................................................................................3-17
Figure 3-26. Physical Measurements Menu...................................................................................3-18
Figure 3-27. Pressure Limits Menu ................................................................................................3-18
Figure 3-28. Temperature Limits Menu ..........................................................................................3-18
Figure 3-29. Physical Measurements – Manufacturer’s settings Display ......................................3-19
Figure 3-30. Displayed Parameters Menu......................................................................................3-19
Figure 3-31. Calibration Gas List Menu..........................................................................................3-21
Figure 3-32. Calibration Parameters Display .................................................................................3-21
Figure 3-33. Analyzer Zero Display ................................................................................................3-22
Figure 3-34. Expert Controls Menu ................................................................................................3-22
Figure 3-35. Zero/Span Calibration Menu ......................................................................................3-23
Figure 3-36. Analyzer Zero Menu...................................................................................................3-23
Figure 3-37. Zero/Span Diagnostic Data Menu..............................................................................3-23
Figure 3-38. Calibration Factors Menu...........................................................................................3-24
Model NGA2000 WNX and WCLD
LIST OF ILLUSTRATIONS
iv Contents Rosemount Analytical Inc. A Division of Emerson Process Management
Model NGA2000 WNX and WCLD
Figure 3-39. Range Factors Menu..................................................................................................3-24
Figure 3-40. Range Factors Display...............................................................................................3-24
Figure 3-41. System & Network I/O Module Controls Menu ..........................................................3-25
Figure 3-42. System SIO Module Menu .........................................................................................3-25
Figure 3-43. Analog Output Setup Menu........................................................................................3-26
Figure 3-44. Analog Output Setup Menu........................................................................................3-26
Figure 3-45. Signals Menu ............................................................................................................3-26
Figure 3-46. Output Signal If Assigned Module Fails Menu...........................................................3-27
Figure 3-47. Special Scaling for Concentration Signal Menu.........................................................3-28
Figure 3-48. Analog Output Updates per Second Menu ................................................................3-28
Figure 3-49. Serial Interface Setup Menu ......................................................................................3-28
Figure 3-50. AK Protocol Definitions Menu ....................................................................................3-29
Figure 3-51. Relay Outputs Setup Menu........................................................................................3-29
Figure 3-52. Choose Source Module Menu ...................................................................................3-29
Figure 3-53. Choose Signal Menu..................................................................................................3-29
Figure 3-55. System Configuration and Diagnostics Menu............................................................3-30
Figure 3-56. Diagnostic Menu ........................................................................................................3-31
Figure 3-57. Analyzer Diagnostics Menu .......................................................................................3-31
Figure 3-58. Power Supply Voltages Menu....................................................................................3-31
Figure 3-59. Primary Variable Parameters Menu...........................................................................3-31
Figure 3-60. Physical Measurements Menu...................................................................................3-32
Figure 3-61. Temperature Control Menu (Screen 1)......................................................................3-32
Figure 3-62. Temperature Control Menu (Screen 2)......................................................................3-32
Figure 3-63. NO/NOx Flow Balance Menu.....................................................................................3-32
Figure 3-64. Calculate Factor Using Pressure Ratio Menu............................................................3-33
Figure 3-65. Load/Save Configuration (CM/MCA) Menu ...............................................................3-33
Figure 3-66. Date and Time Menu..................................................................................................3-33
Figure 3-67. Security Codes Menu.................................................................................................3-34
Figure 3-68. Define Basic Level Security PIN Menu ......................................................................3-34
Figure 3-69. System Reset Menu...................................................................................................3-35
Figure 3-70. Measuring Efficiency of NO
Figure 3-71. Conversion Efficiency as a Function of Converter Temperature ...............................3-40
Figure 4-1. WNX - Power Fuse Location........................................................................................4-1
Figure 4-2. WNX - Removing Module Cover..................................................................................4-3
Figure 4-3. WNX - Replacing Peristaltic Pump ..............................................................................4-3
Figure 4-4. WNX - Replacing Peristaltic Pump Tube .....................................................................4-4
Figure 4-5. WNX - Removing Converter Thermostat, Manifold Thermistor Temperature Sensor
and Converter..............................................................................................4-6
Figure 4-6. WNX Converter Assembly ...........................................................................................4-7
Figure 4-7. WNX - Removal of Oven Fan ......................................................................................4-8
Figure 4-8. WNX - Removing Rear Panel ......................................................................................4-9
Figure 4-9. WNX - Removing Regulator/Manifold Assembly .........................................................4-10
Figure 4-10. WNX - Regulator/Manifold Assembly.........................................................................4-11
Figure 4-11. WNX - Removing LON/Power Module, Power Module and Electronics Assembly...4-12
Figure 4-12. WNX - Electronics Assembly (Exploded View)..........................................................4-13
Figure 4-13. WNX - Removal of Exhaust Fan and Screen ............................................................4-14
Figure 4-14. WNX - Removal of Intake Fan ...................................................................................4-15
Figure 4-15. WNX - Removal of Dehumidifier ................................................................................4-16
Figure 5-1. WCLD Power Fuse Location........................................................................................5-4
Figure 5-2. WCLD - Removing Cover ............................................................................................5-3
Figure 5-3. WCLD - Removal of Intake and Exhaust Fans ............................................................5-3
Figure 5-4. WCLD - Removal of Ozone Generator, Ozone Generator Power Supply, and
Transistor Assembly ....................................................................................5-6
to NO Converter...........................................................3-39
2
Instruction Manual
760009-B
November 2002
Rosemount Analytical Inc. A Division of Emerson Process Management Contents v
Instruction Manual
760009-B
November 2002
Figure 5-5. WCLD - Removing Computer Board and Bracket From Analyzer Module..................5-6
Figure 5-6. WCLD – Removing Computer Board From Bracket ....................................................5-7
Figure 5-7. WCLD – Removing Signal Board, Driver Board ..........................................................5-8
Figure 5-8. WCLD - Removing Power Supply/LON Assembly from Analyzer Module ..................5-9
Figure 5-9. WCLD - Power Supply Board/LON Power Module Assembly .....................................5-10
Figure 5-10. WCLD - PROM Location on Computer Board ...........................................................5-11
Figure 5-11. WCLD - Removing Pressure Switch and Detector from Analyzer Module................5-12
Figure 5-12. WCLD Detector – Cutaway View ...............................................................................5-13
Figure 5-13. WCLD - Removing Heater Thermostat Assembly from Detector ..............................5-14
Figure 5-14. WCLD - Removing Reaction Chamber and Sapphire Window from Detector...........5-15
Figure 5-15. WCLD - Removing the Photodiode from the Detector...............................................5-16
Figure 5-16. WCLD - Photodiode/Socket (Exploded View)............................................................5-17
Figure 5-17. WCLD - Capillary Assembly.......................................................................................5-18
Figure 5-18. WCLD - Removing the Sample Capillary from the Detector......................................5-19
Figure 5-19. WCLD - Replacing Pressure Sensors........................................................................5-20
Model NGA2000 WNX and WCLD
vi Contents Rosemount Analytical Inc. A Division of Emerson Process Management
Instruction Manual
Model NGA2000 WNX and WCLD
November 2002
PREFACE
The purpose of this manual is to provide information concerning the components,
functions, installation and maintenance of the NGA 2000 CLD 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.
760009-B
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 Description and Specifications P-1
Instruction Manual
760009-B
November 2002
Model NGA2000 WNX and WCLD
SAFETY SUMMARY
If this equipment is used in a manner not specified in these instructions, protective systems may be impaired.
AUTHORIZED PERSONNEL
To avoid explosion, loss of life, personal injury and damage to this equipment and on-site property,
all personnel authorized to install, operate and service the this equipment should be thoroughly
familiar with and strictly follow the instructions in this manual. SAVE THESE INSTRUCTIONS.
DANGER.
ELECTRICAL SHOCK HAZARD
Do not operate without doors and covers secure. Servicing requires access to live parts which can
cause death or serious injury. Refer servicing to qualified personnel. For safety and proper performance this instrument must be connected to a properly grounded three-wire source of power.
WARNING .
TOXIC AND OXIDIZING GAS
This module generates ozone which is toxic by inhalation and is a strong irritant to throat and
lungs. Ozone is also a strong oxidizing agent. Its presence is detected by a characteristic pungent
odor.
The module's exhaust contains both ozone and nitrogen dioxide, both toxic by inhalation, and may
contain other constituents of the sample gas which may be toxic. Such gases include various oxides of nitrogen, unburned hydrocarbons, carbon monoxide and other products of combustion reactions. Carbon monoxide is highly toxic and can cause headache, nausea, loss of consciousness,
and death.
Avoid inhalation of the ozone produced within the module, and avoid inhalation of the sample and
exhaust products transported within the module. Avoid inhalation of the combined exhaust products at the exhaust fitting.
Keep all tube fittings tight to avoid leaks The user is responsible for testing for leakage only at the
inlet and outlet fittings on the rear panel. Periodically, the user should do an internal leak test (with
a test procedure chosen by the user).
Connect rear exhaust outlet to outside vent with stainless steel or Teflon line. Check vent line and
connections for leakage.
P-2 Rosemount Analytical Inc. A Division of Emerson Process Management
Instruction Manual
Model NGA2000 WNX and WCLD
WARNING.
PARTS INTEGRITY
Tampering or unauthorized substitution of components may adversely affect safety of this product.
Use only factory documented components for repair.
WARNING.
OVERBALANCE HAZARD
This analyzer module may tip instrument over if it is pulled out too far and the Platform is not properly supported.
WARNING.
INTERNAL ULTRAVIOLET LIGHT
Ultraviolet light from the ozone generator can cause permanent eye damage. Do not look directly at
the ultraviolet source. Use of ultraviolet filtering glasses is recommended.
November 2002
760009-B
WARNING.
TOXIC CHEMICAL HAZARD
The ozone generator lamp contains mercury. Lamp breakage could result in mercury exposure.
Mercury is highly toxic if absorbed through the skin or ingested, or if vapors are inhaled.
Handle lamp assembly with extreme care. If the lamp is broken, avoid skin contact and inhalation
in the area of the lamp or the mercury spill.
Immediately clean up and dispose of the mercury spill and lamp residue as follows:
• Wearing rubber gloves and goggles, collect all droplets of mercury by means of a suction pump
and aspirator bottle with a long capillary tube. (Alternately, a commercially available mercury
spill clean-up kit, such as J.T. Baker product No. 4439-01, is recommended.)
• Carefully sweep any remaining mercury and lamp debris into a dust pan. Carefully transfer all
mercury, lamp residue and debris into a plastic bottle which cab be tightly capped.
• Label and return to hazardous material reclamation center. Do not place in the trash, incinerate
or flush down the sewer.
• Cover any fine droplets of mercury in non-accessible crevices with calcium polysulfide and sul-
fur dust
Rosemount Analytical Inc. A Division of Emerson Process Management Description and Specifications P-3
Instruction Manual
760009-B
November 2002
Do not place hands or fingers in the Platform front handles when front panel is open. Dropping the
front panel of the Platform while hand or fingers are inside either handle can cause serious injury.
This module requires periodic use of pressurized gas. See General Precautions for Handling and
Storing High Pressure Gas Cylinders, page P-5
STATIC SENSITIVE COMPONENTS
Circuit boards in this instrument are static-sensitive. Take all static precautions when handling
them.
Model NGA2000 WNX and WCLD
WARNING.
HAND INJURY HAZARD
CAUTION .
PRESSURIZED GAS
CAUTION.
NOTICE
Software compatibility is necessary for all NGA 2000 components in your system to work together.
The version of your Platform's software must be equal to or greater that the version of any other
module(s) for successful compatibility. If it is not, contact Rosemount Analytical at 800-433-6076 to
order software upgrade kit PN NL657150 for the Platform.
You can locate the version of each NGA 2000 component as follows:
Platform Controller Board
Turn power ON.
The display will show "Control Module V2. ...". This is the software version.
Analyzer Module
Located on the right side of the Analyzer Module case.
I/O Module
Located on the backplane connector of the module. If no label is present, the module is Version
2.0.
P-4 Rosemount Analytical Inc. A Division of Emerson Process Management
Instruction Manual
760009-B
Model NGA2000 WNX and WCLD
November 2002
GENERAL PRECAUTIONS FOR HANDLING AND STORING HIGH
PRESSURE GAS CYLINDERS
Edited from selected paragraphs of the Compressed Gas Association's "Handbook of Compressed
Gases" published in 1981
Compressed Gas Association
1235 Jefferson Davis Highway
Arlington, Virginia 22202
Used by Permission
1. Never drop cylinders or permit them to strike each other violently.
2. Cylinders may be stored in the open, but in such cases, should be protected against extremes of weather
and, to prevent rusting, from the dampness of the ground. Cylinders should be stored in the shade when located in areas where extreme temperatures are prevalent.
3. The valve protection cap should be left on each cylinder until it has been secured against a wall or bench, or
placed in a cylinder stand, and is ready to be used.
4. Avoid dragging, rolling, or sliding cylinders, even for a short distance; they should be moved by using a suitable hand-truck.
5. Never tamper with safety devices in valves or cylinders.
6. Do not store full and empty cylinders together. Serious suckback can occur when an empty cylinder is attached to a pressurized system.
7. No part of cylinder should be subjected to a temperature higher than 125
permitted to come in contact with any part of a compressed gas cylinder.
8. Do not place cylinders where they may become part of an electric circuit. When electric arc welding, precautions must be taken to prevent striking an arc against the cylinder.
°
F (52°C). A flame should never be
Rosemount Analytical Inc. A Division of Emerson Process Management Description and Specifications P-5
Instruction Manual
9
6
760009-B
November 2002
Model NGA2000 WNX and WCLD
DOCUMENTATION
The following NGA 2000 WNX and WCLD instruction materials are available. Contact Customer Service
Center or the local representative to order.
760009 Instruction Manual (this document)
COMPLIANCES
The Wet NOx Conversion Module and the Wet CLD Analyzer Module carry approvals from
several certifying agencies, including the Canadian Standards Association (which is also an
OSHA accredited, Nationally Recognized Testing Laboratory), and TUV for use in nonhazardous, indoor locations.
Rosemount Analytical Inc. has satisfied all obligations from the European Legislation to
harmonize the product requirements in Europe.
These products comply with the standard level of NAMUR EMC. Recommendation (May
1993).
This product satisfies all obligations of all relevant standards of the EMC framework in
Australia and New Zealand.
®
97-C219
NAMUR
N
P-6 Rosemount Analytical Inc. A Division of Emerson Process Management
Instruction Manual
Model NGA2000 WNX and WCLD
November 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
760009-B
The Backplane and the card cages that hold I/O and Expansion Modules.
Expansion Module
A circuit board that plugs into the Backplane from the front of the Platform and performs special features
not related to I/O functions.
I/O Module
A circuit board that plugs into the Backplane from the rear of the Platform. Has a connector terminal for
communication with external data acquisition devices and provides an input/output function.
Operator Interface
The Display and Keyboard.
Platform
Any workable collection of the following: Controller Board, Power Supply, Distribution Assembly, Enclosure
and Operator Interface.
Power Supply
Any of a variety of components that provides conditioned power to other NGA 2000 components, from the
Power Supply Board that plugs into the front of the Backplane in a stand-alone instrument to several larger
ones that can power larger collections of modules and components.
Primary Variable
The measured species concentration value from an Analyzer Module.
Secondary Variable
Data placed on the network by a module regarding current status, e.g., sample flow, source voltage and
other diagnostic information.
Rosemount Analytical Inc. A Division of Emerson Process Management Description and Specifications P-7
Instruction Manual
760009-B
November 2002
Softkeys
The five function keys located below the front panel display; they assume the function displayed directly
above each on the display, a function dictated by software.
System
Any collection of Analyzer Module(s), Platform(s), I/O Module(s) and Expansion Module(s).
Model NGA2000 WNX and WCLD
P-8 Rosemount Analytical Inc. A Division of Emerson Process Management
Model NGA2000 WNX and WCLD
SECTION 1
DESCRIPTION AND SPECIFICATIONS
Instruction Manual
760009-B
November 2002
1-1 OVERVIEW
This manual describes the Wet NOx (WNX)
Analysis System, a member of Rosemount
Analytical's NGA 2000 Series of gas analysis
components. The system consists of two
modules: (1) a WNX Conversion Module (P/N
195009) and a WET CLD (WCLD) Chemiluminescense Analyzer Module (195110).
The WCLD Module P/N 195110 contains only
the functionality that is required in order to
supplement the functionality of the WNX
Module. An existing CLD Module P/N 195005
can be used in place of the WCLD Module
P/N 195110 after being suitably modified in
the field. This five-step modification disables
unrequired functionality. It is described in Section 2-2.
The WNX Module (Figure 1-1 and Figure 1-2)
accept a hot, wet sample stream, cools it, and
dehumidifies it for use by the WCLD Analyzer
Module (Figure 1-3 and Figure 1-4). The hot
sample is introduced to a converter (a heated
bed of vitreous carbon) which converts all oxides of nitrogen (NO
The converter can be bypassed if the sample
contains just NO. Once the sample contains
only NO, it is directed to the dehumidifier, a
Peltier device located outside of the heated
compartment. The water vapor is cooled and
condensed, and the condensate is removed
periodically with a peristaltic pump. The cool,
x) to nitric oxide (NO).
dry sample gas is sent to the WCLD for
analysis.
The WCLD Module uses chemiluminescense
detection technology, a technique that is
based on the reaction between nitric oxide
(NO) and ozone (O
oxygen (O2). Some of the NO2 molecules thus
produced are in an electronically excited state
(NO
2*). These revert immediately to the
ground state, with emission of photons (essentially, red light). The reactions involved
are:
NO + O
NO
The intensity of the emitted red light is proportional to the concentration of NO in the original gas sample and is measured by a
photodiode.
1-2 TYPICAL APPLICATIONS
The major application of the WNX System is
analysis of internal combustion engine exhaust.
3 → NO2* + O2
2* → NO2 + red light
3) to produce NO2 and
Rosemount Analytical Inc. A Division of Emerson Process Management Description and Specifications 1-1
Instruction Manual
Y
g
760009-B
November 2002
SAMPLE OUT
FLOW BALANCE
EXHAUST GAS
EXHAUST LIQUID
SAMPLE IN
RESTRICTOR
Needle Valve
Restrictor
70 cc/min.
Model NGA2000 WNX and WCLD
M
Out
F
MANIFOLD
ASSEMBL
Pressure
Re
ulator
Figure 1-1. WNX Module Flow System
Solenoid
Valve
B
G
H
Top
CONVERTER
DEHUMIDIFIER
L
In
Drain
PERISTALTIC
PUMP
Top
K
1-2 Description and Specifications Rosemount Analytical Inc. A Division of Emerson Process Management
Model NGA2000 WNX and WCLD
Peristaltic Pump
Power Module
LON/Power
Module
Computer Board
Module Function Board
Converter
Manifold Assembly
Module cover and oven cover removed for clarity.
Figure 1-2. WNX Sample Conversion Module – Major Components
Instruction Manual
760009-B
November 2002
Intake Fan
Dehumidifier
Exhaust Fan
Rear Panel –
See Figure 2-1 for connections
Rosemount Analytical Inc. A Division of Emerson Process Management Description and Specifications 1-3
Instruction Manual
PRESSURE
PUMP CAPILLARY
SAMPLE CAPILLARY
PRESSURE SENSOR
760009-B
November 2002
OZONE AIR
REDUCING BULKHEAD
1/4T - 1/8T BRASS
SWITCH
CONNECTOR
1/8T - 1/8FPT BRASS
TEE 1/8T BRASS
EXHAUST
REDUCING BULKHEAD
1/4T - 1/8T SS
PORT CONNECTOR
1/8T CRES
TUBE ADAPTER
BRASS
TEE 1/8T CRES
CONNECTOR
1/8T - 3/8MPT BRASS
UNION 1/8T SS
REDUCING BULKHEAD
1/4T - 1/8T SS
SAMPLE
Note: For the SAMPLE INLET, a 1/4T - 1/8T Reducer Fitting is supplied in the ship kit.
Model NGA2000 WNX and WCLD
OZONE
GENERATOR
RESTRICTOR
1/8T - 1/8MPT
PRESSURE SENSOR
1/8 OD TEFLON
CROSS 1/8T SS
CONNECTOR
1/8T - 3/8MPT SS
UNION 1/8T SS
UNION 1/8T SS
REDUCING UNION
1/8T - 1/16T SS
70 cc/min OR 200 cc/min
OZONE
EXHAUST
REACTION
CHAMBER
SAMPLE
1-4 Description and Specifications Rosemount Analytical Inc. A Division of Emerson Process Management
Figure 1-3. WCLD Module Flow Diagram
Model NGA2000 WNX and WCLD
Instruction Manual
760009-B
November 2002
Driver Board
Ozone Generator
Sample Pressure
Sensor
Ozone Pressure
Sensor
Signal Board
Inlet/Outlet Fittings
Fans
Detector
Sample Capillary
Pressure Switch
Power Supply Board
Flow Balance Needle Valve
Computer
Board
Figure 1-4. WCLD Module – Major Components
Rosemount Analytical Inc. A Division of Emerson Process Management Description and Specifications 1-5
Instruction Manual
760009-B
November 2002
1-3 SPECIFICATIONS – WET NOX CONVERSION MODULE
a. Performance
Measurement Species:.................. NO, NOx
Ranges: ......................................... 0 to 10 ppm through 0 to 10,000 ppm NOx maximum
Delay Time: ................................... 5 seconds, maximum (Does not include response time of compan-
Ambient Temperature:................... 0°C to 45°C (32°F to 113°F)
Power Requirements:.................... 24V DC 192W
For the following parameters, the Wet NOx Sample Conditioning Module and the Wet CLD Analyzer
Module together shall meet the performance specifications of the companion CLD Module.
Repeatability Response Time
Minimum Detectable Level Drift
Noise Effect of Temperature
Linearity
b. Physical
Model NGA2000 WNX and WCLD
ion CLD)
Case Classification:....................... General purpose for installation in weather-protected area
Dimensions:................................... See Figure 2-5
Weight: .......................................... 10.6 kg (23.5 lbs.)
Mounting:....................................... Custom-installed in a panel (not used in a Platform)
Max. Length of LON Cable:........... 1600m (1 mile)
c. Sample
Temperature: ................................ 70°C or less
Flow Rate: ................................... 750 to 2200 ml/min.
Pressure ........................................ 344 to 620 hPa ( 5 to 9 psig)
Particles: ...................................... Filtered to <2 microns
Moisture: .........................................less than 15% water vapor by volume, no entrained liquid
Materials in contact with Sample:.. Stainless steel, Teflon, glass
d. Gas Connections
Sample In ...................................... 1/4” O.D. tube fitting, stainless steel
Exhaust Gas .................................. 1/4” O.D. tube fitting, stainless steel
Sample Out.................................... 1/8” O.D. tube fitting, stainless steel
Exhaust Liquid............................... 1/4” O.D. tube fitting, stainless steel
1-6 Description and Specifications Rosemount Analytical Inc. A Division of Emerson Process Management
Model NGA2000 WNX and WCLD
1-4 SPECIFICATIONS - WET CLD ANALYZER MODULE
a. Performance
See the Preface section of the Platform Components manual for specifications regarding Platformrelated components (e.g., case dimensions) and the Preface of the I/O Module manual for specifications regarding I/O (e.g., relay outputs).
Measurement Species................... NO
Ranges .......................................... 0 to 10 ppm through 0 to 10,000 ppm; 500 ppm NO
Repeatability.................................. ±0.5% of fullscale (at constant temperature)
Minimum Detectable Level ............ 0.1 ppm
Noise ............................................. <1% of fullscale, peak to peak
Linearity ......................................... ±1% of fullscale
Response Time
<3 sec. for 90% of fullscale for ranges of less than 25 ppm
Drift (at constant temperature) ...... Zero - ±1% of fullscale/24 hours, <2% of fullscale/week
Span - <±1% of fullscale/24 hours, <3% of fullscale/week
Effect of Temperature.................... <2% of fullscale (over any 10°C ambient temperature variation in-
Ambient Temperature.................... 10°C to 40°C (50°F to 104°F)
Power ............................................ 24V DC 70W
b. Physical
1
............................ <1 sec. for 90% of fullscale for ranges of 25 ppm or greater
terval for a rate of change no greater than 10°C/hour)
Instruction Manual
760009-B
November 2002
Case Classification ........................ General purpose for installation in weather-protected area
Maximum Length of LON Cable.... 1600m (1 mile)
Dimensions.................................... See Figure 2-6
Weight ........................................... 8.1 kg (18 lbs.)
Mounting........................................ Inside a Platform or custom-installed in a panel
c. Sample
Temperature .................................. 0°C to 55°C (32°F to 131°F)
Flow rate........................................ Approximately 400 ml/min.
Pressure ........................................ 482 hPa (±138 hPa), 7 psig (±2 psig)
Particles ........................................ Filtered to <2 microns
Dewpoint........................................ 5.5°C below ambient temperature, no entrained liquid
Materials in contact with Sample... Stainless steel, glass, Teflon, Kynar
Ozonator Gas ................................ Clean, dry air or oxygen; flow rate: 1 L/min.
Max. pressure: 1702 hPa to 2047 hPa (10 to 15 psig)
1
Does not include delay time introduced by Wet NOx Conversion Module
Rosemount Analytical Inc. A Division of Emerson Process Management Description and Specifications 1-7
Instruction Manual
760009-B
November 2002
d. Gas Connections
Ozone Air....................................... 1/4” O.D. tube fitting, stainless steel
Exhaust.......................................... 1/4” O.D. tube fitting, stainless steel
Sample
1
........................................ 1/8” O.D. tube fitting, stainless steel
Model NGA2000 WNX and WCLD
1
A 1/4T - 1/8T Reducer is supplied in the ship kit
1-8 Description and Specifications Rosemount Analytical Inc. A Division of Emerson Process Management
Model NGA2000 WNX and WCLD
SECTION 2
INSTALLATION
Instruction Manual
760009-B
November 2002
2-1 UNPACKING
If either the WNX Sample Conversion Module
or the WCLD Chemiluminescense Analysis
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
module are operational.
2-2 MODIFICATION OF A CONVENTIONAL CLD
FOR USE IN A WNX SYSTEM
A WCLD Module, P/N 195110, or its’ functional equivalent, is required for use in a WNX
System. Five steps must be taken to modify a
conventional CLD module, P/N 195005, to be
functionally equivalent. These five steps apply
just to the CLD Module. Refer to the instructions below and to the manual for that product.
Step 1 - There must not be a flow restrictor in
the SAMPLE IN fitting of the CLD. If there is,
the bulkhead fitting in which it is contained
must be removed and replaced with a similar
bulkhead fitting that does not contain a flow
restrictor. Then, for the remainder of this
preparation, temporarily place a restriction in
the sample line to the CLD to limit flow to less
than 2200 cc/min. This restriction must be removed before plumbing into a WNX System.
Step 2 - With zero gas flowing, adjust the
back-pressure regulator that controls capillary
head pressure in the CLD to 5 - 6 psig (344 413 hPa). Do not change this adjustment
later.
Step 5 - Now that the CLD is operating properly, disconnect power from it, turn off all
gases, and remove the restriction that was
placed in the sample line. The CLD is then
ready for use in a WNX System.
2-3 ASSEMBLY
If the WCLD module requires assembly with
other components (e.g., a Multi Module Enclosure), do so at this time. Following the
guides on the bottom of the enclosure, carefully slide the module halfway into place. The
WNX module may not be used in a Platform.
CAUTION.
HAND INJURY HAZARD
Do not place hands or fingers in enclosure
front handles when the front panel is open.
Dropping front panel while hand or fingers
are inside either handle can cause serious
injury.
Lift the spring-loaded pins on the front of the
module, and carefully slide it the rest of the
distance. Secure the module in position by releasing the pins, which seat in the available
holes in the bottom of the case. Connect one
of the network cables to either NETWORK 1
or NETWORK 2 connections on the front
panel of the module. Connect one of the
power cables to the power connection on the
front panel also. (See Figure 2-4.)
Secure the front panel with the six screws
provided.
2-4 LOCATION
Step 3 - Select the NO mode. Do not change
this adjustment later.
Step 4 - Verify that the CLD responds properly
to an appropriate span gas.
Rosemount Analytical Inc. A Division of Emerson Process Management Installation 2-1
Install the modules in a clean, level,
weather-proofed, vibration-free location free
from extreme temperature variations and
moisture. For best results, install the Wet NOx
Module near the sample stream and the CLD
Module near the Wet NOx Module to minimize
sample transport time.
Instruction Manual
760009-B
November 2002
Model NGA2000 WNX and WCLD
Operating ambient temperature is 10°C to
40°C (50°F to 104°F). Temperature change
should not exceed 10°C (18°F) per hour. The
same restriction on temperature range applies
to the location of the air and span gas cylinders.
NOTE
Unrestricted air flow at the rear of each
module is critical to its performance and
reliability (See Figure 2-1 and Figure 2-2).
Unrestricted air flow at the left side (air intake) of the WNX is critical to its performance and reliability (Figure 2-3).
2-5 GASES
a. Overview
The WNX Module is used in concert with
a WCLD Analyzer Module, either a standard CLD or one specially configured for
use with a WNX Module. In either case,
certain functions are retained by the CLD
Module while other functions are assumed by the WNX Module, and these
functions determine gas connections to
each module.
b. Pneumatic Connections
All pneumatic connectors on both modules are ferrule-type compression fittings.
The SAMPLE OUT connection of the
WNX Module is 1/8-inch. The SAMPLE IN
connection of the CLD Module is either
1/4-inch (WCLD P/N 191110 and CLD
P/N 194005). The 1/4-inch to 1/8-inch reducing fitting supplied with the WCLD (or
CLD) should be used, as close as practical to the CLD Module. Interconnect the
two modules using 1/8-inch teflon or
stainless steel tubing. The tubing should
be as short as practical.
Connect lines for SAMPLE-IN, GAS EXHAUST, and EXHAUST LIQUID to appropriately labeled fittings on the rear
panel of the WNX Module. A heated line
with materials of construction that are
suitable for the sample must be used for
the sample line to the WNX Module. The
remaining lines may be teflon or stainless
steel.
Connect lines for AIR/OXYGEN and EXHAUST to appropriately labeled fittings on
the rear panel of the CLD Module.
The hot, wet sample and all calibration
standard gases are introduced to the
WNX Module at the SAMPLE IN connection. The dry sample gas emerging from
the SAMPLE OUT connection of the WNX
Module is conveyed to the CLD SAMPLE
IN connection via appropriate tubing.
The CLD retains all ozonator functions,
including introduction of breathing grade
air or oxygen at its OZONATOR AIR connection.
Calibration gases and ozonator-source
gas should be supplied from a cylinder
equipped with a clean, non-corrosive,
two-stage regulator. A shutoff valve is
recommended.
The exhaust lines should be 1/4 inch (6.3
mm) or larger. These lines must not be
restricted.
c. Specifications
Calibration Gases
Either U.S.P. breathing grade air or nitrogen is recommended for use as zero gas.
A mixture of NO or NO
of nitrogen is recommended as span gas.
For maximum accuracy, the concentration
of NO in the span gas should be about
the same as that in the expected sample
stream.
Sample
The sample to the WNX Module must be
clean and hot before entering the WNX
Module. Sample should be filtered for particulates down to two microns. The sam-
2 in a background
2-2 Installation Rosemount Analytical Inc. A Division of Emerson Process Management
Model NGA2000 WNX and WCLD
Instruction Manual
760009-B
November 2002
ple to the CLD Module should be clean
and dry.
airborne contaminants, the user should
periodically do an internal leak test (with a
test procedure chosen by the user).
Ozonator Source Gas
For analyzers with ranges less than
0 to 2,500 ppm, U.S.P. breathing grade
air should be used for generation of the
ozone required for the chemiluminescence reaction. For ranges greater than
0 to 2,500 ppm, breathing grade oxygen
is required.
Should be introduced at the
AIR/OXYGEN fitting of the CLD Module at
between 690 and 1035 hPa-gauge (10
and 15 psig) of ozonator air (or oxygen, if
appropriate)
Pressure
Zero gas, span gas and sample should be
introduced at the SAMPLE IN fitting of the
WNX Module at between 345 and 620
hPa-gauge (5 and 9 psig). Bypass flow
rate should be approximately 1000
cc/min. with backpressure regulator pres-
Limits and health effects of some of the
airborne contaminates are shown below.
Federal health standards are established
to provide an adequate margin of safety in
protecting public health. As specified by
Federal air quality standards, the maximum permissible outdoor air level is:
Ozone (O
3) (one hour average):
Not to exceed 0.12 ppm (one hour
average) more than one day per
year.
Nitrogen Oxides (NOx) includes Nitric
Oxide (NO) and Nitrogen Dioxide (NO
2).
Nitrogen Oxides make up a major
part of PM
10 - fine particle pollution
(less than 10 micrometers in size).
Nitric Oxide (NO) exposed to Ozone
(O
3) produces Nitrogen Dioxide
(NO
2) and Oxygen (O2).
sure adjusted to 344 hPa (5 psig).
Nitrogen Dioxide (one year average):
NOTE
At no time should flow of zero gas,
span gas, or sample exceed
2200 cc/min. Damage to internal components may occur if this flow level is
exceeded.
NOTE
At no time should ozonator gas pressure exceed 2070 hPa-gauge (30 psig).
Damage to internal components may
occur if this pressure level is exceeded.
Not to exceed 0.053 ppm for one
year average
Evidence suggests that repeated exposure to high ozone levels may cause irreversible damage to the lung. Health
effects of ozone are complicated by the
presence of other pollutants, such as nitric acid, PM
10 and nitrogen dioxide. In
animals, ozone mixed with acids has
been found to be more harmful than
ozone alone. The harm depends on the
situation: The person who is exposed to
pollution (health, age, sex, nutritional and
smoking status, sensitivity), the type and
Leak Test
Each module is completely tested at the
factory for gas leakage. During installation, the user is responsible for leak testing only at the inlet and outlet fittings on
the rear panel. To prevent exposure to
concentration of pollutant, the place, time,
temperature and humidity. Inhaled fine
particles pose a health risk when they
penetrate deeply into respiratory tract.
Most particle penetration into lungs occur
during mouth breathing.
Rosemount Analytical Inc. A Division of Emerson Process Management Installation 2-3
Instruction Manual
760009-B
November 2002
Model NGA2000 WNX and WCLD
SAMPLE OUT
EXHAUST LIQUID
FLOW BALANCE
SAMP LE IN
EXHAUST GAS
CONVERT. VENT
RESTRICTOR
EXHAUST FAN
Figure 2-1. Rear Panel Connections of the WNX Module
OZONATOR AIR
EXHAUST
SAMPLE IN
EXHAUST FAN
INTAKE FAN
Figure 2-2. Rear Panel Connections of the WCLD Module
INTAKE FAN
Figure 2-3. WNX Intake Fan Location
2-4 Installation Rosemount Analytical Inc. A Division of Emerson Process Management
Model NGA2000 WNX and WCLD
2-6 ELECTRICAL CONNECTIONS
Two electrical connections are required on
each module: POWER and NETWORK.
These connections are located on the front
panel of each module, Figure 2-4, Figure 2-5
and Figure 2-6. On each module, two
Instruction Manual
760009-B
November 2002
NETWORK connectors are available, either of
which is appropriate for: 1) interconnection
with the network or 2) "daisy-chaining" with
other NGA 2000 components. Connect enclosure power or external 24 VDC power source
to the POWER connection of each module.
(The WNX Module may use as much as 8 A
power).
NETWORK1
NETWORK2
POWER
FUSE
Figure 2-4. Electrical Connections
Rosemount Analytical Inc. A Division of Emerson Process Management Installation 2-5
Instruction Manual
760009-B
November 2002
FRONT VIEW
Model NGA2000 WNX and WCLD
[213]
[208]
[173]
[15]
[13]
SIDE VIEW
.5
[13]
[109]
[28]
22.4
[572]
[72]
[152]
1.3
[33]
REAR VIEW
Dimensions:
INCH
[MM]
3.5
[88]
1.4
[37]
SAMPLE
EXHAUST LIQUID
FLOW BALANCE
SAMPL E IN
EXHAUST GAS
CONVERT. VENT
RESTRICTOR
7.3
[185]
4.2
[106]
4.1
[104]
.6
[14]
1.7
[43]
2.7
[68]
3.6
[92]
Figure 2-5. WNX - Outline and Mounting Dimensions
2-6 Installation Rosemount Analytical Inc. A Division of Emerson Process Management
Loading...