Emerson Rosemount Analytical NGA2000 CLD Instruction Manual

Instruction Manual

760000-C
November 2002

Model NGA2000 CLD

Chemiluminescence 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 representative

for clarification.

• Follow all warnings, cautions, and instructions

marked on and supplied with the product.

• Inform and educate your personnel in the proper installation, operation, and maintenance of

the product.

• Install your equipment as specified in the Installation Instructions of the appropriate Instruc-

tion Manual and per applicable local and national codes. Connect all products to the proper elec-

trical and pressure sources.

• To ensure proper performance, use qualified personnel

to install, operate, update, program, and

maintain the product.

• When replacement parts are required, ensure that qualified people use replacement parts specified by

Rosemount. Unauthorized parts and procedures can affect the product’s performance, place the safe
operation of your process at risk, and VOID YOUR WARRANTY

. Look-alike substitutions may result

in fire, electrical hazards, or improper operation.

• Ensure that all equipment doors are closed and protective covers are in place, except when

maintenance is being performed by qualified persons, to prevent electrical shock and personal
injury.

The information contained in this document is subject to change without notice.

Teflon is a Registered Trademark of E.I. duPont de Nemours and Co., Inc.
Kynar is a Registered Trademark of 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 [phone]
F [phone]
e-mail: [e-mail]

http://www.processanalytic.com

Model NGA2000 CLD

TABLE OF CONTENTS

PREFACE...........................................................................................................................................P-1

Definitions ...........................................................................................................................................P-1

Safety Summary .................................................................................................................................P-2

General Precautions For Handling And Storing High Pressure Gas Cylinders .................................P-6

Documentation....................................................................................................................................P-7

Compliances .......................................................................................................................................P-7

Glossary Of Terms ...........................................................................................................................P-8

1-0 DESCRIPTION AND SPECIFICATIONS..............................................................................1-1

1-1 Overview................................................................................................................................1-1

1-2 Typical Applications...............................................................................................................1-1

1-3 Theory of Technology............................................................................................................1-1

1-4 Features.................................................................................................................................1-1

1-5 Specifications.........................................................................................................................1-4

a. General ...........................................................................................................................1-4

b. Physical...........................................................................................................................1-4

c. Sample ............................................................................................................................1-4

d. Gas Connections.............................................................................................................1-5

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2-0 INSTALLATION ....................................................................................................................2-1

2-1 Unpacking..............................................................................................................................2-1

2-2 Assembly ...............................................................................................................................2-1

2-3 Location .................................................................................................................................2-2

2-4 Gases ....................................................................................................................................2-2

a. Overview .........................................................................................................................2-2

b. Connections ....................................................................................................................2-2

c. Specifications ..................................................................................................................2-3

2-5 Electrical Connections ...........................................................................................................2-4

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. Routine Operation ...........................................................................................................3-7

3-4 Basic Controls and Status .....................................................................................................3-8

a. Analyzer Channel Status ................................................................................................3-8

b. Single Component Display..............................................................................................3-8

c. Multi Component Display................................................................................................3-9

3-5 Basic Controls........................................................................................................................3-10

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3-6 Display Controls ....................................................................................................................3-11

3-7 Analyzer And I/O, Expert Controls And Setup.......................................................................3-12

a. Range Settings................................................................................................................3-12

b. Physical Measurements ..................................................................................................3-13

c. Concentration Alarms .....................................................................................................3-13

d. Linearization Parameters ................................................................................................3-14

e. Linearization Functions ...................................................................................................3-15

f. Response Time ...............................................................................................................3-17

g. Automatic Range Change...............................................................................................3-17

h. Display Units ...................................................................................................................3-18

i. Physical Measurements & Pressure Limits ....................................................................3-18

j. Single Component Display Parameters..........................................................................3-19

3-8 Calibration Procedure............................................................................................................3-21

a. Calibration Setup.............................................................................................................3-21

b. Basic Controls Calibration...............................................................................................3-22

c. Expert Controls Calibration.............................................................................................3-23

d. Unable to Calibrate .........................................................................................................3-25

3-9 System & Network I/O Module Controls (Setup) – System SIO...........................................3-26

a. Analog Output Setup.......................................................................................................3-26

b. Serial Interface Setup .....................................................................................................3-29

c. Relay Outputs Setup.......................................................................................................3-29

3-10 System & Network I/O Module Controls (Setup) – System DIO ..........................................3-31

3-11 System Configuration and Diagnostics .................................................................................3-32

a. Diagnostic Menus............................................................................................................3-32

b. Load/Save Module Configuration....................................................................................3-34

c. Date and Time.................................................................................................................3-35

d. Security Codes................................................................................................................3-35

e. System Reset..................................................................................................................3-36

3-12 Converter Temperature Adjustment ......................................................................................3-37

3-13 Measurement of Converter Efficiency ...................................................................................3-38

a. Test Setup for Measurement of Conversion Efficiency...................................................3-38

b. Test Procedure................................................................................................................3-38

c. Subnormal Conversion Efficiency...................................................................................3-39

d. Replacement of Converter ..............................................................................................3-40

e. Capillaries .......................................................................................................................3-40

f. TEA Scrubber..................................................................................................................3-40

Model NGA2000 CLD

4-0 MAINTENANCE AND SERVICE ..........................................................................................4-1

4-1 Overview................................................................................................................................4-1

4-2 Fuses .....................................................................................................................................4-1

4-3 Fans.......................................................................................................................................4-1

4-4 Converter ...............................................................................................................................4-1

4-5 Ozonator ................................................................................................................................4-1

4-6 Printed Circuit Boards............................................................................................................4-1

4-7 Detector Disassembly............................................................................................................4-3

a. Reaction Chamber Removal...........................................................................................4-3

b. Reaction Chamber Installation........................................................................................4-3

c. Photodiode Removal.......................................................................................................4-4

d. Photodiode Installation....................................................................................................4-4

5-0 TROUBLESHOOTING ..........................................................................................................5-1

5-1 Leaks .....................................................................................................................................5-1

ii Contents Rosemount Analytical Inc. A Division of Emerson Process Management

Model NGA2000 CLD

6-0 REPLACEMENT PARTS ......................................................................................................6-1

6-1 Matrix .....................................................................................................................................6-1

6-2 Replacement Parts ................................................................................................................6-1

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

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Figure 1-1. Flow Diagram - CLD Analyzer Module With Bypass Flow Sensor .................................1-2

Figure 1-2. Flow Diagram - CLD Analyzer Module Without Bypass Flow Sensor ...........................1-2

Figure 1-3. CLD Analyzer Module - Top View..................................................................................1-3

Figure 2-1. Analyzer Module Installation into Instrument Platform....................................................2-1

Figure 2-2. CLD Rear Panel Connections.........................................................................................2-3

Figure 2-3. Front Panel Controls and Electrical Connections ...........................................................2-4

Figure 2-4. CLD Wiring Diagram .......................................................................................................2-5

Figure 2-5. Outline and Mounting Dimensions..................................................................................2-6

Figure 3-1. Measure Mode Display ...................................................................................................3-1

Figure 3-2. The Display Screen.........................................................................................................3-3

Figure 3-3. Changing Variables.........................................................................................................3-3

Figure 3-4. Function Confirmation Display ........................................................................................3-3

Figure 3-5. Main Menu Display..........................................................................................................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 .......................................................................................................3-10

Figure 3-10. Display Controls Menu ..................................................................................................3-11

Figure 3-11. Analyzer and I/O Expert Controls and Setup Menu......................................................3-12

Figure 3-12. Expert Controls Menu ...................................................................................................3-12

Figure 3-13. Range Settings Menu....................................................................................................3-12

Figure 3-14. Physical Measurements Menu......................................................................................3-13

Figure 3-15. Concentration Alarm Setup Menu.................................................................................3-13

Figure 3-16. Gas Measurement Parameters Menu...........................................................................3-14

Figure 3-17. Linearization Parameters Menu ....................................................................................3-14

Figure 3-18. Linearity Coefficients Menu...........................................................................................3-14

Figure 3-19. Linearization Functions Menu .......................................................................................3-15

Figure 3-20. Polynomial Setup Menu ................................................................................................3-15

Figure 3-21. Gas Concentrations Menu ............................................................................................3-15

Figure 3-22. Midpoint Correction Setup Menu ..................................................................................3-16

Figure 3-23. Response time/delay Parameters................................................................................3-17

Figure 3-24. Automatic Range Control Menu....................................................................................3-17

Figure 3-25. Actual Switch Levels Menu ...........................................................................................3-18

Figure 3-26. Display Units Menu .......................................................................................................3-18

Figure 3-27. Pressure Limits Menu ...................................................................................................3-19

Figure 3-28. Temperature Limits Menu .............................................................................................3-19

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 ....................................................................................3-22

Figure 3-33. Zero/Span Calibration Menu .........................................................................................3-23

Figure 3-34. Analyzer Zero Display...................................................................................................3-23

Figure 3-35. Zero/Span Diagnostic Data Menu.................................................................................3-24

Figure 3-36. Calibration Factors Menu..............................................................................................3-24

Figure 3-37. Range Factors Menu.....................................................................................................3-24

Figure 3-38. Range Factors -Manufacturer’s/Stored Settings Display..............................................3-25

Figure 3-39. System & Network I/O Module Controls Menu .............................................................3-26

Figure 3-40. System SIO Module Menu ............................................................................................3-26

Figure 3-41. Analyzer Modules Menu ...............................................................................................3-26

Model NGA2000 CLD

LIST OF ILLUSTRATIONS

iv Contents Rosemount Analytical Inc. A Division of Emerson Process Management

Model NGA2000 CLD

Figure 3-42. Analog Output Setup Menu...........................................................................................3-27

Figure 3-43. Signals Menu ...............................................................................................................3-27

Figure 3-44. Output Signal If Assigned Module Fails Menu..............................................................3-28

Figure 3-45. Special Scaling for Concentration Signal Menu............................................................3-28

Figure 3-46. Analog Output Updates per Second Menu ...................................................................3-29

Figure 3-47. Serial Interface Setup Menu .........................................................................................3-29

Figure 3-48. AK Protocol Definitions Menu .......................................................................................3-29

Figure 3-49. Relay Outputs Setup Menu...........................................................................................3-30

Figure 3-50. Choose Source Module Menu ......................................................................................3-30

Figure 3-51. Choose Signal Menu.....................................................................................................3-30

Figure 3-52. System DIO Module Menu............................................................................................3-31

Figure 3-53. System Configuration and Diagnostics Menu...............................................................3-32

Figure 3-54. Diagnostic Menu ...........................................................................................................3-32

Figure 3-55. Analyzer Diagnostics Menu ..........................................................................................3-32

Figure 3-56. Power Supply Voltages Menu.......................................................................................3-33

Figure 3-57. Primary Variable Parameters Menu..............................................................................3-33

Figure 3-58. Temperature Control Menu (Screen 1) .........................................................................3-33

Figure 3-59. Temperature Control Menu (Screen 2) .........................................................................3-33

Figure 3-60. NO/NOx Flow Balance Menu........................................................................................3-34

Figure 3-61. Calculate Factor Using Pressure Ratio Menu...............................................................3-34

Figure 3-62. Load/Save Configuration (CM/MCA) Menu ..................................................................3-34

Figure 3-63. Date and Time Menu.....................................................................................................3-35

Figure 3-64. Security Codes Menu....................................................................................................3-35

Figure 3-65. Define Basic Level Security PIN Menu .........................................................................3-35

Figure 3-66. System Reset Menu......................................................................................................3-36

Figure 3-67. Measuring Efficiency of NO

Figure 3-68. Conversion Efficiency as a Function of Converter Temperature ..................................3-42

Figure 4-1. CLD Module Assembly....................................................................................................4-2

Figure 4-2. Converter Assembly........................................................................................................4-3

Figure 4-3. Detector Assembly ..........................................................................................................4-5

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to NO Converter.............................................................3-41

2

LIST OF TABLES

Table 2-1. Gas Specifications...................................................................................................... 2-2

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Instruction Manual

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Model NGA2000 CLD

vi Contents Rosemount Analytical Inc. A Division of Emerson Process Management

Instruction Manual

Model NGA2000 CLD

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.

760000-C

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

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Model NGA2000 CLD

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.

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Instruction Manual

Model NGA2000 CLD

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.

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760000-C

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

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WARNING.

HAND INJURY HAZARD

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.

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.

Model NGA2000 CLD

WARNING.

POSSIBLE EXPLOSION HAZARD

This equipment is not designed and should not be used in the analysis of flammable samples. Use
of this equipment in this way could result in explosion or death.

CAUTION

PRESSURIZED GAS

This module requires periodic use of pressurized gas. See General Precautions for Handling and
Storing High Pressure Gas Cylinders, page P-6

CAUTION

EXTERNALLY RESTRICT SAMPLE FLOW TO LESS THAN 2200 CC/MIN.

No restrictor is provided in the sample inlet of this module. For those users who cannot externally
limit sample flow, accessory restrictor PN 657300 is available from Rosemount Analytical.

To obtain this accessory, call 800-433-6076.

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.

P-4 Preface Rosemount Analytical Inc. A Division of Emerson Process Management

Instruction Manual

Model NGA2000 CLD

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 657150 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.

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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

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Instruction Manual

9

6

Model NGA2000 CLD

November 2002

DOCUMENTATION

The following NGA 2000 CLD instruction materials are available. Contact Customer Service Center or the
local representative to order.

760000 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.

760000-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).

This product satisfies all obligations of all relevant standards of the EMC framework in Australia and New
Zealand.

FM

APPROVED

NAMUR

NRTL /C

®

97-C219

N

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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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Instruction Manual

Model NGA2000 CLD

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).

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P-10 Preface Rosemount Analytical Inc. A Division of Emerson Process Management

Model NGA2000 CLD

DESCRIPTION AND SPECIFICATIONS

1-1 OVERVIEW

This manual describes the Chemiluminescence
(CLD) Analyzer Module of Rosemount Analyti­cal's NGA 2000 Series of gas analysis compo­nents (See Figure 1-1, Figure 1-2 page 1-2 and
Figure 1-3, page 1-3).

SECTION 1

NO
tronically excited state (NO
the excitation)). These revert immediately to the
ground state, with emission of photons (essen­tially, red light). The reactions involved are:

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molecules thus produced are in an elec-

2

* - the "*" refers to

2

NO + O

→ NO2* + O2

3

The CLD Analyzer Module is designed to con­tinuously determine the concentration of nitric
oxide and oxides of nitrogen (NO plus nitrogen
dioxide [NO

]) in a flowing gaseous mixture. The

2

concentration is expressed in parts-per-million.

The CLD Analyzer Module is designed as a
slide-in module (if configured in stand-alone in­strument fashion), removable from the front of
the Platform, 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 CLD Analyzer Module has specific applica­tions in the following areas:

• Oxides of nitrogen emissions from the

combustion of fossil fuels in:

Vehicle engine exhaust
Incinerators
Boilers
Gas appliances
Turbine exhaust

• Nitric acid plant emissions

NO

* → NO2 + red light

2

As NO and O

mix in the reaction chamber, the

3

intensity of the emitted red light is measured by
a photodiode and is proportional to the concen­tration of NO in the original gas sample.

To measure NOx (NO + NO

), any NO2 in the

2

sample is reduced to NO (at <95% efficiency)
by being continuously passed through a heated
bed of vitreous carbon (this occurs before the
sample gas is presented to the ozone). Any NO
initially present in the sample passes through
this converter stage unchanged before being
routed to the reaction chamber.

The photodiode generates a DC current, which
is then amplified, conditioned and expressed on
the network as the Primary Variable.

1-4 FEATURES

Among the features included in the CLD Ana­lyzer Module are: 1) ozonator air loss shutoff
and 2) NO/NOx mode capability.

• De-NO

control system

X

• Nitric oxide emissions from decaying or-

ganic material (e.g., landfills).

1-3 THEORY OF TECHNOLOGY

The CLD Analyzer Module uses the chemilumi­nescence method of detection. This technology
is based on the reaction of NO with ozone (O
to produce NO

Rosemount Analytical Inc. A Division of Emerson Process Management Description and Specifications 1-1

and oxygen (O

2

). Some of the

2

)

3

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Model NGA2000 CLD

BULKHEAD REDUCER

1/4T - 1/8T BRS

OZONE AIR

SAMPLE

BULKHEAD REDUCER
1/4T - 1/8T SS

EXHAUST

BULKHEAD

1/4T SS

BULKHEAD REDUCER

CONNECTOR
1/4T SS

1/4T - 1/8T BRS

OZONE AIR

SAMPLE

BULKHEAD REDUCER
1/4T - 1/8T SS

OZONE GENERATOR

659494

CONNECTOR,GLASS
BLUE

VENT CAPILLARY

70cc/min 4 PSIG

634398

PUMP CAPILLARY

1/8 OD TEFLON

657473

SAMPLE PRESSURE
SENSOR 15 PSIG 655253

KYNAR

ELBOW 1/8T
SS

1/8 OD SS

TEE
1/8T

ELBOW 1/8T
SS

1/8 OD SS

2 70 cc/min. 5 psig CAPILLARY: PN 659657
200 cc/min. 2 psig CAPILLARY: PN 659658

CROSS

1/8T BRS

MALE CONNECTOR

1/8T-3/8NPT B RS

FLOW
BALANCE
VALVE
903207

TEE ASSEMBLY

1/8T-1/4MPT

1/4T - 1/8FP T SS

TEE

CONNECTOR

1/8T-1/8NPT BRS

MALE CONNECTOR
1/8T-3/8NPT BR S

PRESSURE SENSOR
30 PSIG AIR
655254

ELBOW
1/8T-1/8MPT KYNAR

1

BACK

PRESSURE

REGULATOR

REDUCER
1/4T - 1/8T SS

ELBOW
1/8T - 1/8MPT
SS

.116 ID VITON BLK

PRESSURE SWITCH
662298

BYPASS

FLOW

SENSOR

902931

ELBOW
1/8T-1/4MPT
SS

AIR RESTRICTOR
430cc/min @ 12 PSIG
658157

CONNECTOR,

GLASS BLUE

SOLENOID

VALVE

NO/NOx

655263

ELBOW
1/8T-1/8MPT
KYNAR

TEE 1/8T
KYNAR

NOx TO NO

CONVERTER

655250

TOP

NC NO

C

TEE 1/8T
KYNAR

CROSS
1/8T SS

CONNECTOR, MALE
1/8T-3/8MPT SS

1 BRASS/NEOPRENE 655269
STAINLESS STEEL/VITON 659063

Figure 1-1. Flow Diagram - CLD Analyzer Module With Bypass Flow Sensor

OZONE GENERATOR

659494

CONNECTOR,GLASS
BLUE

VENT CAPILLARY

70cc/min 4 PSIG

634398

PUMP CAPILLARY

2 PSIG

SAMPLE PRESSURE
SENSOR 15 PSIG 655253

TEE
1/8T
KYNAR

TEE 1/8T

KYNAR

UNION 1/8T S S

UNION 1/4T- 1/8T SS

REDUCING UNION
1/8T - 1/16T S S

CROSS

1/8T BRS

MALE CONNECTOR

1/8T-3/8NPT B RS

FLOW
BALANCE
VALVE
903207

TEE ASSEMBLY

1/8T-1/4MPT

CONNECTOR

1/8T-1/8NPT BRS

MALE CONNE CTOR
1/8T-3/8NPT BRS

PRESSURE SWITCH
662298

PRESSURE SENSOR
30 PSIG AIR
655254

BACK

PRESSURE

REGULATOR

EXHAUST

BULKHEAD

1/4T SS

.116 ID VITON BLK

ELBOW
1/8T-1/4MP T
SS

AIR RESTRICTOR
430cc/mi n @ 12 PSIG
658157

CONNECTOR,

GLASS BLUE

NO/NOx

SOLENOID

VALVE

655263

TEE 1/8T
SS

NOx TO NO

CONVERTER

TOP

NC NO

C

655250

TEE 1/8T
KYNAR

CROSS
1/8T SS

CONNECTOR, MALE
1/8T-3/8MPT SS

Figure 1-2. Flow Diagram - CLD Analyzer Module Without Bypass Flow Sensor

REACTION
CHAMBER

2

REDUCING UNION
1/8T - 1/16T SS

1/8 OD SS

1/8 OD SS

SAMPLE CAPILLARY

OZONE

EXHAUST

SAMPLE

DETECTOR

REACTION
CHAMBER

OZONE

EXHAUST

SAMPLE

1-2 Description and Specifications Rosemount Analytical Inc. A Division of Emerson Process Management

Model NGA2000 CLD

Instruction Manual

760000-C

November 2002

COMPUTER
BOARD

DRIVER BOARD

OZONE
GENERATOR

SIGNAL
BOARD

INLET/OUTLET

FITTINGS

FANS

NO2 TO NO
CONVERTER

3-WAY
SOLENOID VALVE

DETECTOR

SAMPLE
CAPILLARY

FLOW SENSOR

POWER SUPPLY
BOARD

FUSE

FLOW BALANCE
NEEDLE VALVE

NETWORK/POWER
CONNECTOR

SAMPLE BACKPRESSURE REGULATOR

Figure 1-3. CLD Analyzer Module - Top View

Rosemount Analytical Inc. A Division of Emerson Process Management Description and Specifications 1-3

Instruction Manual

760000-C
November 2002

1-5 SPECIFICATIONS

a. General

Measurement Species:.................. NO, NOx

Ranges: ......................................... 0 to 10 ppm through 0 to 10,000 ppm NO, NOx

Repeatability:................................. ±0.5% of fullscale (at constant temperature)

Min. Detectable Level:................... 0.1 ppm

Noise: ............................................ <1% of fullscale, peak to peak

Linearity: ........................................ ±1% of fullscale

Response Time: ............................ <1 sec. for 90% of fullscale for ranges of 25 ppm or greater

....................................................... <3 sec. for 90% of fullscale for ranges of less than 25 ppm

t90 Response ................................ 1-2 sec.

Zero Drift: (at constant temperature) <±1% of fullscale/24 hours, <±2% of fullscale/week
Span Drift: (at constant temperature) <±1% of fullscale/24 hours, <±3% of fullscale/week

Effect of Temperature:................... <2% of fullscale (over any 10°C ambient temperature variation

Ambient Temperature:................... 0°C to 45°C (32°F to 113°F)

Power Requirements:.................... 24V DC 120W

Model NGA2000 CLD

interval for a rate of change no greater than 10°C/hour)

b. Physical

Case Classification:....................... General purpose for installation in weather-protected area

Dimensions:................................... See Figure 2-5. Outline and Mounting Dimensions p2-6

Weight: .......................................... 8.1 kg (18 lbs.)

Mounting:....................................... Inside a Platform or custom-installed in a panel

Max. Length of LON Cable:........... 1600m (1 mile) between Analyzer Module and Platform

c. Sample

Temperature: ................................ 0°C to 45°C (32°F to 131°F)

Total Flow Rate: .......................... (Externally measured) 900 to 2200 cc/min. with backpressure

regulator pressure adjusted to 344 hPa (5 psig)

Particles: ...................................... Filtered to <2 microns

Dewpoint: ..................................... 5.5°C below ambient temperature, no entrained liquid

Materials in contact with Sample:.. Stainless steel, Teflon, glass, brass and neoprene

Optional: ..................... Stainless steel, Teflon, glass and Kynar

Ozonator Gas: ............................... Clean, dry air or oxygen; flow rate: 1 L/min. maximum; pressure:

689 hPa to 1034 hPa-gauge (10 to 15 psig); maintain a constant
pressure ±34 hPa (±0.5 psig)

d. Gas Connections

Ozone Air:...................................... 1/4” O.D. tube fitting, brass

Exhaust:......................................... 1/4” O.D. tube fitting, stainless steel

Sample In: ..................................... 1/4” O.D. tube fitting, stainless steel

See the Preface section of the Platform manual for specifications regarding Platform-related components
(e.g., case dimensions) and the I/O Module manual for specifications regarding I/O (e.g., relay outputs).

1-4 Description and Specifications Rosemount Analytical Inc. A Division of Emerson Process Management

Model NGA2000 CLD

A

Instruction Manual

760000-C

November 2002

SECTION 2

INSTALLATION

WARNING.

Before starting to install this equipment,
read the “Essential Instructions” on the in­side cover and the Safety Summary begin­ning on page P-2. Failure to follow the safety
instructions could result in serious injury or
death.

2-1 UNPACKING

If the Chemiluminescence (CLD) 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 CLD
Analyzer Module are operational.

2-2 ASSEMBLY

If the CLD Analyzer Module requires assembly
with other components (e.g., the Platform and
associated I/O Modules), do so at this time. Fol­lowing the guides on the bottom left and bottom
center of the Platform, carefully slide the Ana­lyzer Module halfway into place.

CAUTION.

HAND INJURY HAZARD

Do not place hands or fingers in Platform
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
Analyzer 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 (see Figure 2-1,
below). If the module and Platform are difficult
to assemble, remove the module, ensure the
top cover of the module is firmly seated on the
hold-down screws, and repeat the assembly
procedure.

Refer to Section 2-5, page 2-4 for electrical
connections.

Install I/O Module(s) according to guidelines in
the I/O manual. After startup and calibration
have been performed, secure the front panel
with the six screws provided.

NALYZER MODULE GUIDES

PIN SEATS

DISENGAGED FRO NT PANEL

Figure 2-1. Analyzer Module Installation into Instrument Platform

Rosemount Analytical Inc. A Division of Emerson Process Management Installation 2-1

Instruction Manual

760000-C
November 2002

Model NGA2000 CLD

2-3 LOCATION

Install the CLD Analyzer Module in a clean,
weather-protected, vibration-free location free
from extreme temperature variations and mois­ture. For best results, install the instrument near
the sample stream to minimize sample transport
time.

The analyzer should be installed within ±15° of
horizontal.

NOTE

Unrestricted air flow to the rear of the Ana­lyzer Module is critical to its performance
and reliability.

Operating ambient temperature is 0

o

(32

F to 113oF). Temperature change should

not exceed 10

o

C (18oF) per hour. The same
temperature range restrictions apply to the loca­tion of the air and span gas cylinders.

o

C to 45oC

2-4 GASES

a. Overview

See Table 2-1, page 2-2. The CLD Analyzer
Module requires two cylinder gases: 1)
breathing grade air or oxygen and 2) a
standard of accurately known composition
for use as a span gas.

Each gas should be supplied from a cylin­der equipped with a clean, non-corrosive,
two-stage regulator. A shutoff valve is rec­ommended.

b. Connections

(See Figure 2-2, page 2-3) Connect inlet
and outlet lines for sample, air, and exhaust
to appropriately labeled fittings on the rear
panel, each of which is a 1/4-inch fer­rule-type compression fitting.

Stainless steel or Teflon tubing is recom­mended for the sample line. Exhaust tubing
should be 1/4 inch (6.3 mm) or larger, and
made of stainless steel or Teflon.

MAXIMUM NOx

LEVEL IN PARTS

PER MILLION

GAS SUPPLIED

TO REAR PANEL

AIR INLET

800 Air

2,500 Air

10,000 Oxygen

SETTING ON OZONE

PRESSURE GAUGE

(pressure values:

gauge)

690 hPa (10 psig); pro­vides flow of approxi­mately 500 cc/min. to
ozone generator
690 hPa (10 psig); pro­vides flow of approxi­mately 1000 cc/min. to
ozone generator.
1035 hPa (15 psig); pro­vides flow of approxi­mately 1000 cc/min to
ozone generator.

SETTING ON SAMPLE

PRESSURE GAUGE

(pressure values:

gauge)

344 hPa (5 psig); pro­vides flow of approxi­mately 200 cc/min. to
reaction chamber
344 hPa (5 psig); pro­vides flow of approxi­mately 70 cc/min to
reaction chamber.
103 hPa (1.5 psig); pro­vides flow of approxi­mately 20 cc/min. to
reaction chamber.

CAUTION.

Externally Limit Sample Flow Rate To Less Than 2200 Cc/Min.

Table 2-1. Gas Specifications

2-2 Installation Rosemount Analytical Inc. A Division of Emerson Process Management

Model NGA2000 CLD

Instruction Manual

760000-C

November 2002

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
gen 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.

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.

EXHAUST

EXHAUST FAN SAMPLE IN INTAKE FAN

OZONATOR AIR

Figure 2-2. CLD Rear Panel Connections

At no time should sample flow exceed
2200 cc/min. Damage to internal compo-

in a background of nitro-

2

nents may occur if this flow level is ex­ceeded.

EXTERNALLY RESTRICT SAMPLE FLOW

TO LESS THAN 2200 CC/MIN.

No restrictor is provided in the sample
inlet of this module. For those users
who cannot externally limit sample flow,
accessory restrictor PN 657300 is avail­able from Rosemount Analytical. To ob­tain this accessory, call 800-433-6076.

WARNING

CAUTION .

Sample

The sample must be clean and dry before
entering the Analyzer Module. Sample
should be filtered for particulates down to
two microns, and should have a dew point

o

5

C (13oF) below coldest ambient tempera-

ture.

Pressure

Between 690 and 1035 hPa-gauge (10 and
15 psig) of ozonator air (or oxygen, if ap­propriate) should be present at the rear
panel of the module. Bypass sample gas
flow rate should be between 700 and 2000
cc/min. with backpressure regulator pres­sure (see Capillary Pressure in “Current
Measurement Parameters” menu, which
can be viewed by selecting the PARMS
softkey in “Main Menu”) adjusted to 344
hPa (5 psig).

Rosemount Analytical Inc. A Division of Emerson Process Management Installation 2-3

Instruction Manual

760000-C
November 2002

Model NGA2000 CLD

Zero/span gases should be introduced at
the SAMPLE IN fitting at normal sample in­let flow rate.

WARNING

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.

Leak Test

The CLD Analyzer Module is completely
tested at the factory for gas leakage. The
user is responsible for testing for leakage
only at the inlet and outlet fittings on the
rear panel. Periodically, the user should do
an internal leak test (with a test procedure
chosen by the user).

Contaminants

White crystal deposits on the windows of
the reaction chamber, and the clogging of
capillaries and vent are usually due to sam­ple contaminates such as ammonia reacting
with the high ozone levels and NO compo­nents.

To eliminate the contaminates, the sampling
system should be reworked or a preventive

maintenance program developed (if dropout
is not excessive). Another source of crystal­line formation is contaminated air.

2-5 ELECTRICAL CONNECTIONS

NOTE

Electrical installation must be in compliance
with National Electrical Code (ANSI/NFPA

70) and/or any applicable national or local
codes.

Refer to Figure 2-3, page 2-4. Two electrical
connections are required on the Analyzer Mod­ule: POWER and NETWORK. On the Analyzer
Module, two NETWORK connectors are avail­able, either of which is appropriate for:

1. Interconnection with the Backplane of the
Platform. (See instruction manual for the
NGA 2000 Platform).

2. "Daisy-chaining" with other NGA 2000 com­ponents.

Connect Analyzer Module POWER to 24 VDC,
120 Watt power source, either the Platform or
external power source.

Metering Valve

Regulator Adjus t
Slot

Flow

Sample

Balance

Regulator

24V

250 V

CLD

LON

1

LON

2

1 +
2 ­3 GND

T 6A

Network1 Connect ion

Network2 Connect ion

Power Connection

Fuse

Figure 2-3. Front Panel Controls and Electrical Connections

2-4 Installation Rosemount Analytical Inc. A Division of Emerson Process Management

Model NGA2000 CLD

5

3

5

4

4

4

Instruction Manual

760000-C

November 2002

POWER SUPPLY BOARD-LON/POWER

MODULE ASSEMBLY 657510

J2

J1

LON/PWR MODULE
656761

J5

3 2 1

RED

CABLE, CONTR OLLER PWR 903034

NC

J6

1 2

1

2

POWER SUPPLY

BOARD 657520

J13

8 7

1

2

J1

10

9

3

12

7

HEATERS

J11

1

10

J3

6

1

12

RED

DETECTOR
658160

CONVERTER HEATER JACKET 655228

J3

E3

E2

E1

GRN

ORN

BLK

GRN

BLK

1

GRN

J2

2

ORN

3

WHT

WHT

THERMISTOR 655216

THERMOSTAT
657298

THERMOSTAT

CONVERTER TEMPERATURE
SENSOR 65528 2

CONVERTER

655250

NC

1

J1

J4

1

J2

COMPUTER ANALYSIS BOARD 655520

1

J3

J5 J6

CABLE, INTERNAL NETWOR K 903035

HARNESS, SIGNAL POWER 655252

CABLE, FLOW SENSOR 655384

PRESSURE
SWITC H (NO)

RED

WHT

BLK

FLOW

SENSOR

902931

4-15 PSIG
662298

BRN (NO)

1

HARNESS, DRIVER POWER 655243

HEATER/THERMOSTAT ASSEMBLY 655235
PHOTODIODE SOCKET ASSEMBLY 655218

NO/NOx
SOLENOID
655263

WHT

WHT

SHLD

GRN

JUMPER
657162

OZONATOR

POWER
SUPPLY

657716

SHIELD

HARNESS, EXPANSION I/O 655249

111

1

J7

2

SAMPLE
PRESSURE
SENSOR
655253

YEL (COM)

OZONATOR

659494

TRANSISTOR

E

2SD1308

C

655264

B

B = YEL
C = RED
E = BLU

RED

SAMPLE
PRESSURE
SENSOR
655254

RED

WHT

BLU

RED

YEL

BLK

ORN

ORN

BRN

WHT

BLK

RED

BLK

RED

WHT

WHT

BRN
BRN

YEL

J6

4
3

J8

2
1

J9

J1

J13

BRN

1 4 5 6

GRN

WHT

RED

3

J2

2
1

3

J1

2
1

J4 2

1

2

1

3

J9

2
1

1
2
3
4

J8

5
6
7
8

4
3

J5

2
1

4
3

J12

2
1

12

10

J5

J3

SIGNAL BOARD 655580

1 2 3 4 5 6 7 8 9

SHLD*

ORN

GRN

WIRE*

YEL

WHT

BLU

BLK

*COAX CABLE

RED

J11

1 2 3 6

J2

GRN

WHT

BLK

RED

BLK

WHT

RED

RED

4 3 1

J10

J3

DRIVER BOARD

655620

3

J11

1

J2 J6

10

2
1
2

CABLE, ANALO G I/O 903033

BLK

WHT

BLK

7 6

1

8

CABLE, DIGIT AL I/O 655246

CABLE, DIAGNOSTICS 903032

24

1 Optional in Bypass Flow
Sensor Configuration.

FAN 655245

FAN 655245

Figure 2-4. CLD Wiring Diagram

Rosemount Analytical Inc. A Division of Emerson Process Management Installation 2-5

Instruction Manual

[

]

[23].9[23].9[33]

760000-C
November 2002

.5

[13]

Dimensions:

INCHES

[MM]

8.4

[213]

8.2

[208]

6.1

[155]

6.0

[152]

17.5

[445]

4.3

[109]

1.3

2.5
[64]

1.5
[38]

1.1
[28]

4.1

[104]

4.1

4.1

104

Figure 2-5. Outline and Mounting Dimensions

Model NGA2000 CLD

.4

[10]

.7

[18]

[20]

2.8
[71]

.8

1.3
[33]

2-6 Installation Rosemount Analytical Inc. A Division of Emerson Process Management

Model NGA2000 CLD

y

Instruction Manual

760000-C

November 2002

SECTION 3

OPERATION

3-1 OVERVIEW

Once the CLD has been correctly assembled
and installed, the analyzer is ready for opera­tion.

Before operating the system, verify that the
Leak Checks have been performed in accor­dance with Section 2-4, page 2-2.

For the remainder of this section, Analyzer
Module interconnection with a Platform or
some interfacing component is assumed. Dis­play and Keypad information refers to that
which the user can expect to see and do with
regard to the Front Panel of the Platform.

CLD

Sample flow: 1300 ml/min 200 1500

Sample press: 4.0 hPa 50.0 490.0

Ozonator: OFF – PRESS. SW.

Converter temp: 30.9 C 150.0 500.0

Displa

3-2 DISPLAYS & OPERATING KEYS

The LCD screen shows all measurement val­ues of the analyzer, status values and all user
menu instructions. Operation is performed
with five function softkeys, four arrow (cursor)
softkeys and the enter softkey. The function of
each softkey varies depending on the installed
analyzer module, any auxiliary modules in­stalled, and the individual menu displayed.

In case of power failure, all user defined spe­cific module parameters are saved by a bat­tery powered memory.

7.50

0.00 Range: 1 10.00

Status… Main… Channel BasicCal

ppm NO

Figure 3-1. Measure Mode Display

The Function Keys, also called softkeys, are
assigned values depending on the menu or

a menu or to select numeric digits for adjust-

ment.
screen being displayed. The legend is dis­played above the softkeys.

The

Enter Key is used to confirm a previously

entered variable value, to start a selected
function or to go to a submenu selected at a
menu line as opposed to the Function Keys.
As an alternate to using the Enter Key to start

a. Menu Lines & Softkey Functionality

Menu lines can be selected with the ↑
softkey or the ↓ softkey. The selected line
is displayed as white lettering on a black
background (highlighted). Menus can con­tain four different types of lines:

a function, the → softkey can be used.

Menu Line – A line ending with three dots

The

Cursor Keys (↑ or ↓) are used to move

up or down the lines within a menu or to in­crement and decrement number variables.

(…) indicates that it leads to a submenu.
The submenu can be activated by press­ing the ↵ softkey or the → softkey when
the line is highlighted.

Cursor Keys (← or →) are used to move

The
backwards or forwards between the pages of

Rosemount Analytical Inc. A Division of Emerson Process Management Operation 3-1

Instruction Manual

760000-C
November 2002

Model NGA2000 CLD

Function Line – A line ending with an

exclamation point (!) indicates that it will
start a function. The function can be acti­vated by pressing the ↵ softkey or the →
softkey when the line is highlighted.

Variable Line – A line ending with a colon

(:) indicates that it displays a module vari­able parameter. Some parameters can be
changed and some parameters display
only a status and cannot be changed. Pa­rameters that cannot be changed will be
displayed below a line within the menu.

Text Line – A line without punctuation

marks only displays information.

Tag Line – At the top of each menu page

is the tag line of the current channel. To
the right of the Tag is the value of the in­dicated channel.

The Function Keys (Softkeys) can some­times be assigned as Functions (exclama­tion point) or Submenus (three dots) as
shown below.

b. Common Function Keys

Display

ponent display to the multi-component
display. F1 in the single component dis­play.

Measure – Change from menus and

submenus to the single component dis­play of the selected channel. F1.

Status – Change to the menu “Current

measurement parameters” which displays
the most important parameters and infor­mation about the status of the current
channel or module. F2 if available. (See
Section 3-4a, page 3-8)

– Change from the single com-

Channel – Scrolls through the channels

in the same menu. In the main menu and
the single component display menu it
moves between the channels of the con­nected analyzers and analyzer modules.
In the submenus it moves only between
the channels of the current analyzer or
analyzer module. F3 if available, F4 in the
single component display.

Lock – Changes to the main menu and

locks all three operation levels, if a secu­rity code is enabled in the system configu­ration (See Section 3-11d, page 3-35).
F4 in the main menu.

BasicCal – Change from the single com-

ponent display to the menu “Basic Con­trols and Setup.” F5 in the single
component display. (See Section 3-5,
page 3-10)

MFG Data – Change from the main menu

to the menu “Manufacturing Data” which
displays further submenus with informa­tion about the control module and ana­lyzer module, such as address of the
manufacturer, serial number of the mod­ules and software and hardware versions.
F5 in the main menu. (See Section 3-2f,
page 3-4 and Figure 3-6, page 3-5)

More – Changes to an additional menu

page of the current menu. F3 or F5 if
available.

ESCAPE/Back – Returns to the previous

menu. Usually F2 or F4. When changing
a variable, the previous value is displayed
above the Back softkey. Pressing the
Back softkey restores the previous value.

INFO – Context sensitive help screens for

the current menu.

Main – Change from single component

display to the main menu. F3 in the single
component display. (See Section 3-2e,
page 3-4)

HOME – Change for various menus to the

main menu. F1.

3-2 Operation Rosemount Analytical Inc. A Division of Emerson Process Management

Model NGA2000 CLD

g

Y

y

y

play

y

g

c. Entering & Changing Variables

1. Select the variable line desired to be

changed using the ↑ softkey or the
↓ softkey. The selected line will be
highlighted white on black.

2. Press the ↵ softkey and the pa-

rameter will be selected for modifi­cation.

3. The F2 softkey changes to “Back…”
and the previous value of the vari­able shows above it for easy refer­ence. When the variable being
changed is numeric, the F4 softkey
changes to “+/-“ to allow changing of
the sign from positive to negative if
applicable.

4. Use the ↑ softkey or the ↓ softkey
change the entire value, scroll
among the available variables or
change the value of a selected digit
or character.

5. Use the ← softkey or the → softkey
to select digits within a number. For
some variables the quantity of digits
or characters can be changed.

6. Press the ↵ softkey again to confirm
the new value.

Tag Line

Menu Line

Function Lines

Variable Lines

CLD 7.50 ppm

Analyzer basic controls (calibration) & setup…

Anal

zer and I/O, expert controls & setup…

stem configuration and diagnostics…

S

Dis

Time & Date:

stem tag:

S

Measure

-- Main Menu --

controls…

Status… Channel Lock… MFG Data

Figure 3-2. The Display Screen

d. Starting a Function

Instruction Manual

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Selected Line
(Reverse Text)

Lines below this separator
are information and cannot
be chan

Function softkeys F1 – F5 Legend

CLD 7.50 ppm

Displayed concentration digits: 4
Digits after decimal point: 2

Module identification tag: CLD

Si
Signal on mini-bargraph – 2: Sample press
Signal on mini-bargraph – 3: Ozonator OFF – PRESS SW

Signal on mini-bargraph – 4: Converter temp

Measure

-- Measurement Display Configuration --

nal on mini-bargraph – 1: Sample flow

Back…

Figure 3-3. Changing Variables

Pressing the ↵ softkey or the → softkey
while a function line is highlighted will
bring up a confirmation menu as shown
below.

Pressing the Yes (F2) softkey will start the
function immediately.

Pressing the Back… (F4) softkey will re­turn to the previous menu page.

CLD 7.50 ppm

-- Confirmation Required –

Do you really want to do this ??

Press “Yes” or “Back…”

es

Figure 3-4. Function Confirmation

ed.

Back…

Display

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e. Measure Mode Display

The Measure Mode is the normal mode of
operation. In this mode, the Display will
show the current gas measurement, the
component of interest, the current opera­tions of the softkeys, and several graph­ics. A bar representing the displayed
concentration is shown as a percent of
full-scale and up to four lines showing
user selectable secondary parameters
from either the Analyzer Module or any IO
module bound to it. See the Platform
manual for information as to how to select
these. The Measure Mode display is
shown in Figure 3-1, page 3-1.

If more than one Analyzer Module is con­nected to the system, an additional Run
Mode display will show as many as four
(five for version 2.3 and later) gas meas­urements on the display screen.

f. Main Menu

Pressing the Main… (F3) softkey or the →
softkey while in any single component
display will bring up the Main Menu. From
the Main menu it is possible to change all
operating values of the analyzer to set up
and control the parameters of measure­ment, calibration and data transfer. The
sub menus of the Main Menu are shown
in Figure 3-7, on page 3-6

From the Main menu, the MFG Data (F5)
softkey will access several submenus
showing the manufacturing and version
data of the analyzer as shown in Figure
3-6, page 3-4.

Selection from the Main menu:

Measure (F1) – Changes to the single

component display of the current channel.
See Section 3-4b, page 3-8.

Status… (F2) – Changes to the “Current

measurement parameters” menu of the
current channel. See Section 3-4a, page
3-8.

Channel (F3) – Scrolls through all chan-

nels of the connected Analyzers and Ana­lyzer modules.

Lock… (F4) – Locks any operating level

by security code. See Section 3-11d,
page 3-35.

MFG Data (F5) – Changes to “Module

Manufacturing Data” menu. See Figure
3-6, page 3-5.

CLD 7.50 ppm

-- Main Menu --

nalyzer basic controls (calibration) & setup…

nalyzer and I/O, expert controls & setup…

System configuration and diagnostics…

Display control s…

Time & Dat e: 10:30:05 August 10 2001
System tag: Fisher-Ro semount

Measure Status… Channel Lock… MFG Data

Figure 3-5. Main Menu Display

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CLD 7. 50 ppm

Analyzer basic controls (calibration) & setup…

zer and I/O, expert controls & setup…

Anal

S

stem configuration and di agnostics…

Dis

controls…

Time & Date: 10:30:05 August 10 2001
S

stem tag: Fisher-Rosemount

Measure

-- Main Menu --

Status… Channel Lock… MFG Data

CLD 7. 50 ppm

Control module manufacturing data…

Anal

-- Module Manufacturin

zer module manufacturing data…

Data --

CLD 7. 50 ppm

-- Control Module Manufacturin

(C) 2001 Fisher-Rosemount MFG GmbH & Co OHG

Manufactured by:

Fisher-Rosemount GmbH & Co OHG

Industriestrasse 1

D-63594 Hasselroth / Germany

Tel: [phone]

FAX: [phone]

Data --

Measure

Status… Back…<<< >>>

Measure

Or… More…

Back…

CLD 7. 50 ppm

More…

Bench confi

-- Anal

zer Module Manufacturing Data --

uration code: CLA – low range

Minimum ran ge: 10 .0 ppm
Maximum range: 10000 ppm
Diode s/n, block s/n: 0000, 0000
Capillary: 200.0 ml/min

Flow sensor: Present

HOME

ESCAPE RESET STORE INFO

CLD 7.5 0 ppm

Revision date: May 8 2001
Revision time: 15:30:02

Phrase dictionary version: P012/01/00
Language: English

Measure

-- Control Module Version Information --

Serial number: CM1
Manufacturi ng date: 20 04 01

Hardware revision: ACU02 R 3.3.1.D April 01 2001
Software revi sion: 3.6 0 / P010

Back…

CLD 7.5 0 ppm

Measure

-- Control Module Manufacturin

(C) 2001 Fisher-Rosemount

Manufactured by:

Rosemount Analytical Inc.

4125 East La Palma Avenue

Anaheim, CA 92807-1802 / USA

Tel: [phone]

FAX: [phone]

Or… More…

Data --

Back…

CLD 7. 50 ppm

Measure

-- Control Module Manufacturin

(C) 2001 Fisher-Rosemount

Manufactured by:

Rosemount Analytical Inc.

4125 East La Palma Avenue

Anaheim, CA 92807-1802 / USA

Tel: [phone]

FAX: [phone]

Or… More…

Data --

Back…

CLD 7.5 0 ppm

-- Anal

zer Module Version Information --

Serial number: CLD1

Manufacturing date: 08 08 01

Hardware revision: 1.0

Software revi sion: 3.6 0 / P012
Revision date: August 8 2001
Revision time: 03:26:15

Measure

Back…

Figure 3-6. Module Manufacturing Data Displays

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Anal

zer basic controls (calibration) & setup…

zer and I/O, expert controls & setup…

Anal

S

stem configuration and diagnostics…

Dis

controls…

Time & Date: 10:30:05 August 10 2001

S

stem tag: Fisher-Rosemount

Measure

-- Main Menu --

Status… Cha nnel Lock… MFG Data

Figure 3-7. Main Menu Sub Menus

Model NGA2000 CLD

CLD 7.50 ppm

Measurement range number: 1
Range upper lim it: 10.0 ppm

Automatic range change control: Disabled

Ranges with valid calibration: None

Calibration status: READY

Span gas concentration: 10.0 ppm

Status: STANDBY

Measurement mode: NO
Ozonator status: OFF – PRES. SW.
Ozonator

CLD 7.50 ppm

Analyzer module controls…
System & network I/O module controls…

Analyzer module setup…
System & network I/O module setup…

(Note: Controls & setup are identical for MLT/TFID)

Measure

CLD 7.50

System calibration…
Diagnostic menus…
Load/Save configuration (CMMCA)…
Date and time…
Security codes…
Network module management…
System reset…
Pump 1: Off
Pump 2: Off

Measure

CLD 7.50 ppm

Measure

ower: Enabled

HOME

-- Anal

-- System Configuration and Diagnostics --

Brightness: 70%

Contrast: 23%

Switch automatically to “Measure” after: 30 s

Switch off backlight after: Never

-- Basic Controls

NO/NOx

zer and I/O, Expert Controls and Setup --

ZERO INFO

Channel

Channel

-- Dis

Back…

Back…

Controls --

Back…

SPAN

m

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3-3 STARTUP & INITIALIZATION

Apply power to the CLD Analyzer Module. If it
is associated with a Platform, do this by plug­ging in the Platform to a power source. The
Platform has no ON/OFF power button. Once
power has been supplied to the Platform, the
CLD Analyzer Module will be energized.

After switching on the CLD, the analyzer will
begin its booting procedure which is apparent
on the LCD screen. The first part of the ini­tialization procedure is a self check of the
software and analyzer components. Various
displays will show the status of the initializa­tion including revision notes, “Initializing net­work interface,” “Searching for nodes,”
“Scanning Module 2: CLD, 12% Complete,”
and “Calculating bindings.”

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 the Platform manual
for instructions on binding combinations of
modules.

Pressing the F1 softkey during initializing will
reset the LCD brightness and contrast to fac­tory settings (See Section 3-6, page 3-11).
Pressing the F3 softkey will abort the network
initializing, aborting any connection to other
analyzers. In that case, only the menus of the
local analyzer will be available.

ozonator air pressure and sample flow rate
are within specifications (see page 1-4). Cali­brate and adjust converter efficiency, and be­gin routine operation as the following sections
indicate.

(C) 2001 FISHER-ROSEMOUNT Analytical

NGA-2000 Control-Module Rev. 3.6.0 /P010

Language: P012/01/00

Initializing Network

Initializing network interface

LCDReset

Abort

Figure 3-8. Startup Display

a. Routine Operation

The CLD Analyzer Module is designed to
continuously analyze the sample stream.
Normally, it is never powered off except
for servicing or for a prolonged shutdown.

Maximum permissible interval between
calibrations depends on the analytical ac­curacy required, and therefore cannot be
specified. Initially, the instrument should
be calibrated at least once every eight
hours. This practice should continue until
experience indicates that some other in­terval is more appropriate.

At the end of the initializing routine the
“measure” screen will display as shown on the
next page. This screen is the access to all
other channels, menus and submenus. The
actual display may differ from that shown de­pending on any custom configuration as de­scribed in Sections 3-7h, page 3-18 and
Section 3-7j, page 3-19.

After the warm-up period (about one hour for
the CLD Analyzer Module), all modules are
completely functional. Establish that correct

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3-4 BASIC CONTROLS AND STATUS

The following sections describe the basic con­trol of the analyzer and the viewing of channel
parameters. Examples of stepping through the
menus are shown so that the user can be­come familiar with the operation, keeping in
mind that displays and menu choices may be
different depending on actual analyzer con­figuration and any customization of the
menus.

a. Analyzer Channel Status

The analyzer status is displayed in the
Current measurement parameters dis­play.

To access the Current measurement pa­rameters display:

Main Menu [Measure (F1)]

↓

Measurement Mode [STATUS(F2)]

↓

Current measurement parameters

CLD 7.50 ppm

Analyzer gas measured: NO

Measurement range number: 1
Range change control: Local

Linearization mode: Disabled

Analyzer operational state: STANDBY
Analyzer alarm state: NORMAL

Alarms reported: FAILURE

Current total variable updates per second: 24

HOME

-- Current measurement

ESCAPE MORE INFO

arameters --

From the Current measurement parame­ters menu an additional sub menu is
available with additional parameters.

Press MORE (F3) to access the next
menu.

CLD 7.50 ppm

Response time: 3.0 s
Bypass flow: 1300 ml/min.
Capillary pressure: 4.0 hPa
Detector pressure: 38.8 c

-- Current measurement

arameters --

HOME

ESCAPE MORE INFO

Press ESCAPE (F2) or MORE (F4) to re­turn to the first menu or HOME (F1) to re­turn to the Main menu display.

b. Single Component Display

The Measure menu that displays after
startup is the Single Component display
of the analyzer. If other analyzer modules
are connected to the Platform, it is possi­ble to display them using the following
steps to change the channel of the single
component display:

From the Measure Mode display, press
Channel (F4) to change to the Single
Component Display of any other installed
Analyzer Modules.

Example: Changing from CLD (channel 1)
to CO

(channel 2). Continue pressing

2

Channel (F4) to display the desired chan­nel depending on the installed analyzer
configuration, ultimately returning to the
first channel.

CLD

7.50

0.00 Range: 1 10.00

Sample flow: 1300 ml/min 200 1500

Sample press: 4.0 hPa 50.0 490.0

Ozonator: OFF – PRESS. SW.

Converter temp: 30.9 C 150.0 500.0

Displa

MLT/CH1/R2

Temperature: 37.0 C 0.0 100.0

Maintenance Requests: No

ny alarms: No

Operation: Ready

Displa

CLD

Sample flow: 1300 ml/min 200 1500

Sample press: 4.0 hPa 50.0 490.0

Ozonator: OFF – PRESS. SW.

Converter temp: 30.9 C 150.0 500.0

Status… Main… Channel BasicCal

2.50

0.00 Range: 2 5.00

Status… Main… Channel BasicCal

7.50

0.00 Range: 1 10.00

ppm NO

% CO2

ppm NO

Displa

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c. Multi Component Display

If other analyzer modules are connected
to the Platform, it is possible to display up
to five using the following steps to change
from the single component display to the
multi component display as follows:

From the single channel display (Meas­ure) press Display (F1) to change to the
Multi Component Display of all other in­stalled Analyzer Modules.

Changing to the multi component display
can be done from each single component
display.

CLD

7.50

0.00 Range: 1 10. 00

Sample flow: 1300 ml/min 200 1500

Sample press: 4.0 hPa 50.0 490.0

Ozonator: OFF – PRESS. SW.

Converter temp: 30.9 C 150.0 500.0

Displa

Status… Main… Channel BasicCal

ppm NO

MLT/CH1

% CO2

MLT/CH2

ppm CO

>

7.50

2.50

95.00

Select

Status… Tags Off LCDReset

CLD

0.00 [1] 10.00

0.000

0.00

ppm NO

5.00

250.00

Each bargraph shows the start and end of
the range for the respective channel. The
number in parentheses indicates the
number of the selected range for that
channel. (F.S. = full scale)

(Display may look different depending on
installed analyzers.)

Use the F3 softkey (Tags Off) to turn the
analyzer tags on or off.

To select a single channel display in the
multi channel display, enable the select
symbol (>) by pressing the F1 softkey or
the ↓ softkey.

Then use the ↓ or ↑ softkey to select the
line for the desired channel. When the
desired channel is marked, select it for
single component display by pressing the
F1 softkey.

MLT/CH1

2.50

% CO2

0.00 Range: 2 5.00

Temperature: 37.0 C 0.0 100.0

Maintenance-Request No

ny-alarms: No

Operation: Read y

Displa

Status… Main… Chann el BasicCal

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3-5 BASIC CONTROLS

To access the Basic Controls menu:

Measurement Mode [BasicCal (F5)]

Or

Main Menu

↓

Analyzer basic controls (calibration) &

setup…

CLD 7.50 ppm

Measurement range number: 1
Range upper limit: 10.0 ppm

Automatic range change control: Disabled

Ranges with valid calibration: None

Calibration status: READY

Span gas concentrati on: 10.0 ppm

Status: STANDBY

Measurement mode: NO
Ozonator status: OFF – PRES. SW.
Ozonator power: Enabled

HOME

-- Basic Controls --

NO/NOx

ZERO INFO

Figure 3-9. Basic Controls Menu

The Basic Controls menu is used to set the
range, initiate and exit a quick start and exit
the sleep mode.

Measurement range number:

SPAN

See Section 3-7a, page 3-12 to change the
begin and end concentration values for each
of the four ranges.

Automatic range change control:

When enabled, the CLD analyzer module will
change ranges automatically when the pre­sent range is exceeded.

Span gas concentration:

Allows setting of the calibration span gas con­centration. The default is the range upper
limit.

Ozonator Power:

Used to turn off (Disable) the ozonator. For
applications where measurements are made
infrequently but the analyzer is to remain on to
avoid the warm-up period, the CLD would be
placed in Standby mode and the Ozonator
could be Disabled to conserve the life of the
lamp and converter.

NO/NOx (F2)

Press the F2 softkey to toggle the measure­ment mode between NO and NOx.

To select one of the four ranges of the CLD
analyzer, Move the cursor to the “Measure­ment range number:” line and press the ↵
softkey. Change the range number using the
↑ and ↓ softkeys and then press the ↵ softkey
again to save the selection.

ZERO (F3) / SPAN (F4)

To ZERO (F3) or SPAN (F4) the analyzer,
flow the appropriate gas, select the correct
range and press the appropriate softkey. Do a
zero before span!

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3-6 DISPLAY CONTROLS

Main Menu

↓

Display control…

CLD 7.50 ppm

Brightness: 70 %
Contrast: 23 %

Switch automatically to “Measure” after: 30 s

Switch off backlight after: Never

Measure

-- Display Controls --

Figure 3-10. Display Controls Menu

The Display Controls menu is used to adjust
the display parameters.

Brightness and Contrast:

These controls can be adjusted to accommo­date the ambient lighting conditions. The
range of values are 20-100% for brightness
and 1-45% for contrast.

These values can be reset to the defaults
from the Multi Channel display screen (Sec­tion 3-4c, page 3-9) by pressing LCDReset
(F1) function softkey and from the Start up
display (Figure 3-8, page 3-7) by pressing
LCDReset (F5).

Switch automatically to “Measure” after:

This variable line allows setting of the delay
time before any selected menu switches back
to the Measure screen. The selectable values
are:

10 sec
30 sec

1 min

5 min
10 min
30 min

Never

Switch off backlight after:

This variable line allows setting of the delay
time before switching off the backlight of the
display screen. The selectable values are:

10 sec
30 sec

1 min

5 min
10 min
30 min

Never

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3-7 ANALYZER AND I/O, EXPERT CONTROLS

AND SETUP

Main Menu

↓

Analyzer and I/O expert controls & setup…

CLD 7.50 ppm

Analyzer module controls…
System & network I/O module controls…

Analyzer module setup…
System & network I/O module setup…

(Note: Controls & setup are identical for MLT/TFID)

zer and I/O, Expert Controls and Setup --

-- Anal

Measure

Channel

Back…

Figure 3-11. Analyzer and I/O Expert Controls

and Setup Menu

The Expert Controls and Setup menus pro­vide for the configuration of system and net­work I/O (SIO & DIO), and for the
configuration of various functions on the CLD
analyzer module:

softkeys and then press the ↵ softkey again to
save the selection.

CLD 7.50 ppm

Measurement range number: 1
Range upper limit: 10.0 ppm
Range settings…
Range and functional control: Local
Measurement mode: NO
Ozonator status: OFF – PRES. SW.
Ozonator power: Enabled
Zero/Span calibration…
Ranges with valid calibration: None
Physical measurements…

HOME

-- Ex

ert Controls --

CAL

NO/NOx

Figure 3-12. Expert Controls Menu

Range and functional control:

Local = Range control by the menus

Inputs I/O module = Range control by remote
communication

Program I/O module = Range control by the
I/O module

a. Range Settings

INFOESCAPE

NOTE

Whenever the “Channel” tag appears
above the F3 softkey, pressing F3 will
switch to any other installed analyzer
modules, one after the other and eventu­ally back to the CLD module. When activat­ing any other installed module, the menus
will be different depending on that module.
See each module’s manual for a descrip­tion of those menus.

In the “Analyzer and I/O expert controls and
setup” menu, select “Analyzer module con­trol…” . The “Expert Controls” menu will dis­play as shown in Figure 3-12.

NOTE

Zero/Span calibration… is described in
Section 3-8c, page 3-23.

Measurement range number:

To select one of the four ranges of the CLD
analyzer, Move the cursor to the “Range
number:” line and press the ↵ softkey.
Change the range number using the ↑ and ↓

Used to change the upper and lower limit
for each of the four ranges. select Range
settings… from the Expert Controls menu.

Main Menu

↓

Analyzer and I/O expert controls &

setup…

↓

Analyzer module controls…

↓

Range settings…

CLD 7.50 ppm

Minimum range: 10.0 ppm
Maximum range: 10000 ppm
Range 1 lower limit: 0.0 ppm
Range 1 upper limit: 10.0 ppm
Range 2 lower limit: 0.0 ppm
Range 2 upper limit: 25.0 ppm
Range 3 lower limit: 0.0 ppm
Range 3 upper limit: 100.0 ppm
Range 4 lower limit: 0.0 ppm
Range 4 upper limit: 250.0 ppm

HOME

ESCAPE

-- Ran

e Settings --

INFO

Figure 3-13. Range Settings Menu

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To change any of the limits, move the
cursor to the desired line and press the ↵
softkey. Change the limit value using the
↑ and ↓ softkeys and then press the ↵
softkey again to save the selection.

Press the ESCAPE (F2) softkey before
pressing the ↵ softkey to restore the pre­vious value.

The Range Settings menu is also acces­sible from Gas Measurement Parameters
menu (Figure 3-16).

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 “Range x upper limit”, and
use the arrow softkeys to scroll the indi­cated value. The same applies for the
“Range x lower limit” value.

b. Physical Measurements

Use the Physical Measurements menu to
view various conditions of the CLD mod­ule and to adjust the bypass flow limits.

Main Menu

Analyzer and I/O expert controls &

Analyzer module controls…

Physical measurements…

CLD 7.50 ppm

Bypass sample flow: 1300 ml/min
Flow lower limit: 200 ml/min
Flow upper limit: 1500 ml/min
Sample pressure: 3.4 hPa
Ozone supply pressure: 2.7 hPa
Sensor block temperature: 29.6 C

sical Measurements --

-- Ph

HOME

Figure 3-14. Physical Measurements

↓

setup…

↓

↓

NO/NOx

Menu

The bypass flow path is used to increase
the response time of the detector. Upper
and lower limits can be set to trigger a di­agnostic alarm.

To change any of the limits, move the
cursor to the desired line and press the ↵
softkey. Change the limit value using the
↑ and ↓ softkeys and then press the ↵
softkey again to save the selection.

Press the Back (F2) softkey before press­ing the ↵ softkey to restore the previous
value.

The normal value for bypass flow is 700­2000 cc/min.

c. Concentration Alarms

Use the Concentration Alarm Setup menu
to establish or change the alarms for the
sample gas concentration measurement.
(Calibration parameters are described in
Section 3-8a on 3-21)

Main Menu

↓

Analyzer and I/O expert controls &

setup…

↓

Analyzer module setup…

↓

Concentration alarms…

CLD 7.50 ppm

Alarm generation is: On
Level for Low-Low alarm: 0.000

Level for Low alarm: 0 .000
Level for High alarm: 9.000
Level for High-High alarm: 10.000
Alarm delay: 1.0 s
Low-Low alarm: On
Low alarm: On
High alarm: On
High-High alarm: On

HOME

-- Concentration Alarm Setu

ESCAPE

ACKN

--

Figure 3-15. Concentration Alarm

Setup Menu

INFOESCAPE

To change the alarm limits, move the cur­sor to the desired line and press the ↵
softkey. Change the limit value using the
↑ and ↓ softkeys and then press the ↵
softkey again to save the selection.

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Press the Back (F2) softkey before press­ing the ↵ softkey to restore the previous
value.

Alarm delay:

Set the alarm delay for the desired time
delay after the concentration value ex­ceeds the limit before the alarm is acti­vated.

Alarm generation is:

This setting establishes the generation of
alarms as “Off,” “On,” or “On (Hold
Alarm).” The “On (Hold Alarm)” setting
provides that the alarm will remain active
even after the gas concentration returns
below the appropriate level until the
ACKN softkey is pressed or it is reset
from the remote I/O.

ACKN

Press the F3 softkey to acknowledge and
reset any alarm.

d. Linearization Parameters

Linearization parameters allows the es­tablishment of linearizer coefficients and
the assignment of coefficient sets to indi­vidual ranges.

Main Menu

Analyzer and I/O expert controls &

Analyzer module setup…

Gas measurement parameters…

CLD 7.50 ppm

Linearization parameters…

Response time/delay parameters…
Range settings…
Automatic range change parameters…
Units…

-- Gas measurement

Linearization functions…

HOME

ESCAPE

Figure 3-16. Gas Measurement

Parameters Menu

↓

setup…

↓

↓

arameters --

INFO

From the Gas measurement parameters
menu, select Linearization parameters…

CLD 7.50 ppm

Range 1 linearizer: Disabled
If enabled, uses curve no.: 1
Range 2 linearizer: Disabled
If enabled, uses curve no.: 2
Range 3 linearizer: Disabled
If enabled, uses curve no.: 3
Range 4 linearizer: Disabled
If enabled, uses curve no.: 4

Set coefficients…

HOME

-- Linearization Parameters --

ESCAPE

INFO

Figure 3-17. Linearization Parameters

Menu

The linear polynomials act over a range
(not the same as the measurement
range). The system uses the linearizer
polynomial appropriate for the measure­ment range chosen. This is the polyno­mial with the next higher range. It is,
however, possible to specify that the ana­lyzer use a wider range polynomial.

Note that the use of different polynomials
on different ranges will give different read­ings on a new range.

Coefficients may be edited for custom
curves.

CLD 7.50 ppm

A0 coefficient: 0.000000
A1 coefficient: 1.000000
A2 coefficient: 0.000000
A3 coefficient: 0.000000
A4 coefficient: 0.000000
Curve upper limit: 10.0 ppm
Curve over-range: 5.0 %
Curve under-range: 5.0 %

Status: Disabled

HOME

Linearity coefficients

ESCAPE

Curve 1

NEXT LAST

INFO

Figure 3-18. Linearity Coefficients

Menu

Edit the polynomial coefficients as de­sired. Make sure that the curve upper limit
is correct. This is the limit of the range
that this polynomial will support.

The last line (Status) selects whether the
curve is in use. Use the NEXT (F3),
LAST (F4), and BACK (F4) softkeys to
access all four curves.

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e. Linearization Functions

The linearization functions allow the pri­mary variable output to be linearized by
either a polynomial of up to 20 set points,
or by midpoint piecewise correction with
up to three midpoints.

Analyzer and I/O expert controls &

Analyzer module setup…

Gas measurement parameters…

Linearization functions…

CLD 7.50 ppm

Polynomial setup…
Midpoint correction setup…

Use the polynomial setup to generate a linearizing
polynomial from up to 20 gases. With more than 6 gases
it will produce a fourth order polynomial linearizer.
Use the midpoint correction for a piecewise-linear final
correction, to bring up to three points precisely onto
the curve.

HOME

-- Linearization Functions --

ESCAPE

Figure 3-19. Linearization Functions

Polynomial Set Up

Use the polynomial set up to generate a
linearizing polynomial from up to 20
gases. With more than 6 gases, it will
produce a fourth order polynomial lin­earizer.

Analyzer and I/O expert controls &

Analyzer module setup…

Gas measurement parameters…

Linearization functions…

Polynomial set up…

Main Menu

↓

setup…

↓

↓

↓

Menu

Main Menu

↓

setup…

↓

↓

↓

↓

INFO

CLD 7.50 ppm

Range to be li nearized: 1
Current span gas: 10.0 ppm
Calculated polynomial order: 4

Gas value shown is: ppm
Gas concentrations…

Analyzer function: READY

HOME

ESCAPE

-- Pol

nomial Setup --

CALC

INFO

Figure 3-20. Polynomial Setup Menu

Setup:

Select the range to linearize.

Make sure that the span gas value is cor­rect and set into the “Correct span gas”
line.

Choose whether to define the gas con­centrations as absolute values (ppm) or
as a percent of the span gas (Percent of
span gas) in the “Gas values shown as”
line.

Percent would be used if the span gas is
being diluted with a mixing device.

From the “Polynomial set up” menu
(Figure 3-20, page 3-15) select the “Gas
concentrations…” submenu to enter up to
20 points for each range.

CLD 7.50 ppm

Gas value: 1.00
Raw reading: 0.9 ppm
Linearized value: 1.0 ppm

Gas value: 2.00
Raw reading: 1.9 ppm
Linearized value: 2.0 ppm

Point to be measured: Point 1

nalyzer function: READY

HOME

ESCAPE

Gas concentrations

Point 1

Point 2

DAT

NEXT

INFO

Figure 3-21. Gas Concentrations Menu

In the “Gas concentrations” menu, enter
the gas value for the desired point as ppm
or percent of scan range in accordance
with the previous choice made for the
“Gas values shown as.”

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Choose the point to be measured from
the “Point to be measured” line.

At each point in succession, flow the gas
of the correct value and, when the reading
is stable, press the DATA (F3) softkey to
record the gas value and raw reading for
each point.

Move to the next two points with the
NEXT (F4) softkey and move backwards
with the ESCAPE (F2) softkey. After the
desired number of points has been meas­ured and recorded, press ESCAPE from
the Point 1 menu to return to the “Poly­nomial set up” menu.

In the “Polynomial set up” menu, press
the “CALC” softkey.

The analyzer will calculate the best fit
polynomial and store it as the coefficients
in the current range’s linearizer function.

The order or the polynomial is optimized
based on the number of data points pro­vided. At least 7 points are required for a
fourth-order polynomial correction. The
results can be modified with the “Midpoint
correction” also provided. See Section 3­7e, page 3-15.

CAUTION.

The linearization curve must be mono­tonic. If it is not, the calibration routine
will fail and the analyzer will not cali­brate. Test this by copying the values
of the linearization coefficients into a
spreadsheet program and plotting the
results.

The analyzer does not test for monotonic­ity when it spans, but this test may not
catch all possible errors.

Monotonic means that the curve does not
change direction as the gas concentration
increases.

Midpoint Correction Set Up

This function allows the adjustment of the
primary variable output into a precise
value using up to three midpoints. It does
this with a piecewise-linear algorithm that
occurs after and in addition to any poly­nomial linearization. .

The correction can be performed indi­vidually for each range.

Main Menu

↓

Analyzer and I/O expert controls &

setup…

↓

Analyzer module setup…

↓

Gas measurement parameters…

↓

Linearization functions…

↓

Midpoint correction set up…

CLD 7.50 ppm

Correction: DISABLED
Point being mesured: Point 1
Point 1 gas concentration: 2.50 ppm
Point 2 gs concentration: 5.00 ppm
Point 3 gas concentration: 7.50 ppm
Point 1 reading: 2.52 ppm
Point 2 reading: 5.12 ppm
Point 3 reading: 7.56 ppm
Span gas value: 10.00 ppm

nalyzer function: READY

HOME

Midpoint correction setup

Point 1

ESCAPE

SET

RANGE 2

INFO

Figure 3-22. Midpoint Correction

Setup Menu

First, disable the correction.

Set the point being measured to Point 1.

Then enter the first midpoint gas value,
run the gas, and when stable, press
“SET.” “Point 1 reading” will show the ac­tual reading, but the analyzer will adjust it
to the correct value.

Repeat the above steps with the second
and third points as desired.

When complete, se the “Correction:” line
to “ENABLED” to activate the correction.

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CAUTION.

Make sure that the corrections are not
excessive. If the correction is too ex­cessive, the calibration routine will fail
and calibration of the analyzer will not
be possible.

f. Response Time

The response time menus allows the set­ting of the primary analyzer variable t90
times, the LON update rate and the output
delay time.

Main Menu

↓

Analyzer and I/O expert controls &

setup…

↓

Analyzer module setup…

↓

Gas measurement parameters…

↓

Response time/delay parameters…

CLD 7.50 ppm

Range 1 t90 ti me: 3.0 s
Range 2 t90 ti me: 3.0 s
Range 3 t90 ti me: 3.0 s
Range 4 t90 ti me: 3.0 s

LON update time: 10 per sec

Output delay time: 0.0 s

HOME

Response time/delay Parameters

ESCAPE

Figure 3-23. Response time/delay

The

t90 time adjusts the filtering or damp-

ing factor for the concentration outputs for
each range. They are adjustable from 0.1
to 30 seconds with a default of 3.0 sec­onds.

The

LON Update Rate is the rate at

which the analyzer communicates over
the system network. It is adjustable to
“ASAP” (the fastest rate that the network
communicates), “10 per sec,” and “1 per
sec.”

Parameters

Output Delay Time establishes the

The
delay for the DIO and analog outputs to
respond to a change in concentration
value. It is adjustable from 0.0 to 30.0
seconds.

To change a value, move the cursor to
the desired line and press the ↵ softkey.
Change the value using the ↑ and ↓ soft-
keys and then press the ↵ softkey again
to save the selection. Press the Back (F2)
softkey before pressing the ↵ softkey to
restore the previous value.

g. Automatic Range Change

This menu function allows the setting and
enabling of the automatic range change
for each of the four ranges. The automatic
range switching for increasing values is
effective at the upper range limit of each
range, while for decreasing values it is the
next lower range limit times the hysteresis
percent times the upper range limit.

Main Menu

Analyzer and I/O expert controls &

setup…

Analyzer module setup…

Gas measurement parameters…

Automatic range change parameters…

CLD 7.50 ppm

Actual switch levels…

Switch level hysteresis: 20 %

Usage of range –1: Enabled

Usage of range –2: Enabled

Usage of range –3: Enabled

Usage of range –4: Enabled

Automatic range change control: Enabled

Absolute range upper limit: 10000 ppm

bsolute range lower limit: 10.0 ppm

Measure

-- Automatic Ran

Figure 3-24. Automatic Range Control

Set the desired hysteresis level in the
range of 10% to 50% which is applied to
each range transition. (20% is the default
setting.) Enable the desired ranges and
enable the automatic range change con­trol. To view the actual switching levels,

Instruction Manual

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↓

↓

↓

↓

e Control --

Back…

Menu

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select the submenu “Actual switch lev­els…”.

CLD 7.50 ppm

-- Actual Switch Levels --

Range – 1 up: 10.0 ppm
Range – 1 down: -1000000 ppm

Range – 2 up: 25.0 ppm
Range – 2 down: 9.0 ppm

Range – 3 up: 100.0 ppm
Range – 3 down: 22.5 ppm

Range – 4 up: 250.0 ppm
Range – 4 down: 90.0 ppm

Measure

Figure 3-25. Actual Switch Levels

h. Display Units

This menu function is used to set the dis­played units for the various parameters.
This only affects the displayed values. All
outputs are in the basic SI units which, for
example, for pressure is hPa. Gas con­centration values are for all ranges. Indi­vidual ranges cannot be set to different
units.

Main Menu

Analyzer and I/O expert controls &

setup…

Analyzer module setup…

Gas measurement parameters…

]

CLD 7.50 ppm

Gas measurement units: ppm

Pressure measurement units: hPa

Temperature measurement units: C

Ppm to mg/Nm3 conversion factor: 1.000
Lower explosion limit (LEL): 0.00 %
Upper explosion limit (UEL) 0.00 %
Variable are still sent as the basic SI unit.

HOME

-- Units --

Figure 3-26. Display Units Menu

Menu

↓

↓

↓

↓

Units…

Back…

Select the desired parameter and change
the units as follows:

Gas measurement units: ppm, %, ppb, mg/Nm3

Pressure measurement units: hPa, psig

Temperature measurement units: C, F

ppm to mg/Nm3 conversion factor:
The ppm to mg/Nm

3

conversion factor in
the range of 1 to 100000 according to the
formula:

mg/Nm3 =

MW

Molecular weight

NO 30.0
NO

46.0

2

CO 28.0
SO
O

64.1

2

32.0

2

Lower explosion limit (LEL) and upper explosion limit (UEL):

These parameters are used for the PMD,
FID2 and NDIR modules and do not apply
to the CLD. They should both be set at

0.00%.

i. Physical Measurements & Pressure

Limits

This menu is used to display the physical
diagnostic parameters of the CLD ana­lyzer and to set the various pressure lim­its.

INFOESCAPE

In the Physical measurements display,
the normal values for the displayed values
are:

Sample capillary pressure: 7 psig
Ozone supply pressure: 15 psig
Ozonator status: On
Ozonator power: Enabled
Bypass flow: 800 cc/min

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Converter temperature: 300 °C
Ozonator temperature: 58 °C
Sensor temperature: 0.5 °C
Block temperature: 51.5 °C
Capillary flow rate: 200 cc/min

CLD 7.50 ppm

Sample capillary pressure: 7.0 hPa
Ozone supply pressure: 15.0 hPa

Converter temperature: 300.0 C
Sensor temperature: 50.0 C
Block temperature: 51.5 C

Physical Measurements
Manufacturer’s settings

From the “Physical Measurements” menu
(Figure 3-14), select “Pressure limits…”
submenu to view and set the alarm pres­sure limits for the sample capillary and the
ozonator.

CLD 7.50 ppm

-- Pressure Limits --

HOME

ESCAPE

INFO

Figure 3-29. Physical Measurements –

Manufacturer’s settings Display

j. Single Component Display Parameters

Sample capillary upper limit: 490.0 hPa
Sample capillary lower limit: 50.0 hPa
Ozone supply upper limit: 1050 hPa
Ozone supply lower limit: 700.0 hPa

This function and menu is used to estab­lish the parameters to be displayed on the
single component display.

Barometric pressure: 1013 hPa

HOME

ESCAPE

Figure 3-27. Pressure Limits Menu

The nominal values are:

INFO

Main Menu

↓

Analyzer and I/O expert controls & setup…

↓

Analyzer module setup…

↓

Physical measurements parameters…

Capillary upper limit: 7.1 psig
Capillary lower limit: 0.7 psig
Ozone upper limit: 15.2 psig
Ozone lower limit:: 10.2 psig

In the “Physical Measurements” menu,
the “MORE” (F3) softkey displays the
submenu selection for Temperature limits
as shown on the next page. The “HIS­TORY” (F4) softkey displays the values
for pressure and temperature as originally
set at the factory.

CLD 7.50 ppm

Converter upper limit: 500.0 C
Converter lower limit: 150.0 C
Ozonator upper limit: 65.0 C
Ozonator lower limit: 40.0 C
Sensor upper limit: 55 C
Sensor lower limit : 45 C
Block upper limit: 55.0 C
Block lower limit: 45.0 C

-- Temperature Limits --

HOME

ESCAPE

INFO

Figure 3-28. Temperature Limits Menu

CLD 7.50 ppm

-- Dis

ed Parameters --

First line’s parameter: Sample flow
Second line’s parameter: Sample press
Third line’s parameter: Ozonator
Fourth line’s parameter Converter temp

Displayed concentration digits: 6
Digits after decimal point: 2

HOME

INFOESCAPE

Figure 3-30. Displayed Parameters

Menu

Here you can change the parameters that
are displayed in the Single Component
Display.

It is also possible to set the concentration
value precision and number of digits. This
does not change the inherent precision of
the analyzer.

Select a line and press the ↵ softkey. To
change the value use the ↑ and ↓ soft­keys. The values will scroll through the al­lowable selections as follows:

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Sample flow

Displays the sample flow rate in ml/min
with a bargraph.

Sample press

Displays the sample pressure with a bar­graph.

Ozonator

Displays the status of the Ozonator: ON,
Disabled, OFF-PRES.SW.

Converter temp

Displays the converter temperature with a
bargraph.

Block temp

Displays the detector block temperature
with a bargraph.

Detector temp

Displays the photodiode detector tem­perature with a bargraph.

NO/NOx

Displays the current mode, NO or NOx

Noise level

Displays the concentration noise level in
ppm in the range 0.0 to 0.1 with a bar­graph.

t90 time

Displays the t90 response time for the
displayed range with a bargraph.

Output delay time

Displays the output delay time setting with
a bargraph.

Calibration status

Displays the calibration status: READY,
Calibration

Linearizer

________________

Measurement mode

________________

Operational state

Standby, Calibration, Ready

Health

________________

Interference

Off, On

Validity

Validity of the concentration measure­ment: Valid, Invalid (Goes to Valid after a
successful calibration)

Raw signal

Displays the raw concentration output of
the detector before any linearization or
other correction.

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3-8 CALIBRATION PROCEDURE

The CLD analyzer module may require peri­odic calibration with known zero and span
gases in order to maintain a desire level of
analytical accuracy. It is recommended, after
initial startup, that the CLD Analyzer Module is
calibrated at least once every eight hours.
This practice should continue until evidence
indicates that some other interval is more ap­propriate depending on the analytical accu­racy required.

Calibration is the process of flowing known
zero or span calibration gas into the analyzer
for a specified period (averaging time), after
which the analyzer will automatically set its
zero or span factors so that the concentration
measurement equals the calibration gas
value. A limit can be set, beyond which any
attempt by the analyzer to reset its concentra­tion measurement will cause a warning alarm.
In this case, user intervention would be re­quired to reset the alarm and attempt another
calibration.

There are three methods for performing a
calibration with the CLD Analyzer Module and
NGA Platform:

Basic Controls calibration:

(See Section 3-

8b, page 3-22)

This method allows the user to input a span
calibration gas value and perform a zero or
span calibration for each of the four ranges.
This method uses calibration parameters es­tablished in the module setup menus. (See
Section 3-8a, page 3-21)

Expert Controls calibration

: (See Section

3-8c, page 3-23)

This method allows the user to perform a zero
or span calibration for each of the four ranges,
enable or disable the calibration adjustment
limits, view the results, and view or change
the Factors that the analyzer uses to adjust
the zero and span concentration reading. This
method uses calibration parameters estab­lished in the module setup menus. (See Sec­tion 3-8a, page 3-21)

System calibration and setup:

This method allows the user to establish com­plex automated calibration sequences for
modules bound to the Platform. This is fully
described in the Platform manual.

NOTE

If zero calibration is done with other than a
true zero gas followed by a span calibra­tion, it may be necessary to repeat the
calibration. This is due to the
slope/intercept effect where the subse­quent span calibration may change the
zero crossing point.

a. Calibration Setup

Calibration Gas List

This menu is used to set the concentra­tion values of the calibration gases for
each range. These values are used for all
calibrations except in Basic where the
span gas can be entered for a quick man­ual calibration.

Main Menu

↓

Analyzer and I/O expert controls &

setup…

↓

Analyzer module setup…

↓

Calibration gas list…

CLD 7.50 ppm

Zero gas – range 1: 0.00 ppm
NO span gas – range 1: 10.00 ppm
NOx span gas – range 1: 10.00 ppm

Zero gas – range 2: 0.00 ppm
NO span gas – range 2: 10.00 ppm
NOx span gas – range 2: 10.00 ppm

Calibration…

HOME

-- Calibration Gas List --

MORE

INFOESCAPE

Figure 3-31. Calibration Gas List Menu

Use the MORE (F3) softkey to display
and change the values for the remaining
ranges.

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The “Calibration…” submenu provides
quick access to the Expert Controls Cali­bration menu, Section 3-8c, page 3-23.

Calibration Parameters

This menu provides various parameter
settings for all calibration performed from
Basic or Expert modes.

Analyzer and I/O expert controls &

Analyzer module setup…

Calibration parameters…

CLD 7.50 ppm

Calibration adjustment limits: Enabled
Calibration averaging time: 5 s
Calibration failure alarm: No
Cal failure error allowed: 50 %

Calibration time out: 60 s
Zero ranges: TOGETHER
Span ranges: SEPARATELY

HOME

Figure 3-32. Calibration Parameters

Calibration adjustment limits:

Set to “Disable” to recover from a calibra­tion failure.

Calibration averaging time:
Sets the time used by the analyzer to av-

erage its reading during calibration. A
longer time will give a better calibration.

Main Menu

↓

setup…

↓

↓

-- Calibration Parameters --

Display

Calibration time out:

Sets how long the analyzer will wait for
the signal to stabilize before issuing a
Warning.

Zero (Span) ranges:

Used to select whether to calibrate ranges
TOGETHER or SEPARATELY. If to­gether, zeroing or spanning will go
through each range one by one. If the
change required is too great, it will fail and
send an alarm if warning alarms are en­abled. In this case, Disable Calibration
Adjustment Limits and try again. First
check that the calibration gases are cor­rect. If non-zero gases are used, or the
changes are great, zero and span may
have to be repeated a few times.

b. Basic Controls Calibration

This method allows the user to input a
span calibration gas value and perform a
zero or span calibration for each of the
four ranges.

INFOESCAPE

In the “Basic Controls” menu, move the
cursor to the “Span gas concentration:”
line and set the correct value for the cali­bration span gas. The zero gas is as­sumed to be 0.00 ppm.

Begin flowing the calibration gas (zero or
span) and allow time for the analyzer to
stabilize on the gas.

Press the appropriate ZERO (F3) or
SPAN (F4) softkey to display the calibra­tion menu as shown below.

Calibration failure alarm:
When turned on (Yes), issues a warning if

The “Calibration status” must be READY
in order to initiate a calibration.

the analyzer has to change its calibration
by more than the Cal Failure Error, if
warning alarms are enabled.

Verify that the desired measurement
range is active. If not, press ESCAPE (F2)
to return to the previous menu and

Cal failure error allowed:
The percentage by which the calibration

can change before an alarm is triggered if
the Calibration Failure Alarm is enabled.

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change the range.

The “Zero (Span) ranges” tag indicates if
the ranges will be calibrated together or
separately. See Section 3-8a, page 3-21
to change this.

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The “Calibration time” begins to count af­ter the calibration is started to show the
elapsed time.

Press the ZERO (F3) [SPAN (F4)] softkey
to begin the calibration. The “Calibration
status” will display ZEROING-WAIT and
the “Calibration time” clock will count the
seconds. After the signal has stabilized
the calibration will finish. If the signal does
not stabilize within the timeout period
(See Section 3-8a, page 3-21), the cali­bration will fail and another attempt will be
started automatically. Make sure that the
proper calibration gas is flowing.

c. Expert Controls Calibration

This method allows the user to perform a
zero or span calibration for each of the
four ranges, enable or disable the calibra­tion adjustment limits, view the results,
and view or change the Factors that the
analyzer uses to adjust the zero and span
concentration reading.

In the “Expert Controls” menu (Figure
3-12), set the desired measurement range
number to be calibrated. Change the
measurement mode using the “NO/NOx
toggle!” control.

Select “Zero/Span calibration…” menu
line.

CLD 7.50 ppm

Measurement range number: 1
Zero gas concentration: 0.0 ppm
Span gas concentration: 10.0 ppm
Sample flow: 1300 ml/min
Raw measurement signal: 5216063.5
Measurement gas: NO
NO/NOx toggle!
Status: READY
Result…
Calibration ad

HOME

-- Zero/s

ustment limits: Enabled

FACTORS INFOSPANZERO

Figure 3-33. Zero/Span Calibration

Menu

an calibration --

The zero and span gas concentrations
(set in the calibration gas values menu)
are displayed. See Section 3-8a, page 3­21 to change the values.

The sample flow rate is displayed along
with the raw measurement signal. The
sample flow rate should be in the range of
200 – 2200 ml/min.

The raw measurement signal can be used
to set the FACTORS described in Section
3-8c, page 3-23.

The “Measurement gas:” tag shows the
current measurement status as NO or
NOx.

Press the ZERO (F3) [SPAN (F4)] softkey
to begin the calibration.

CLD 7.50 ppm

Are you sure?

You must have zero gas flowing through the analyzer.

-- Analyzer Zero --

Calibration time: 0 s
Measurement range number: 1
Zero ranges TOGETHER
Calibration status: READY
Error message for last zero: CAL OK

HOME

ESCAPE INFOZERO

Figure 3-34. Analyzer Zero Display

The “Calibration status” will display ZE­ROING-WAIT and the “Calibration time”
clock will count the seconds. After the
signal has stabilized the calibration will
finish. If the signal does not stabilize
within the timeout period (See Section 3­8a, page 3-21), the calibration will fail and
another attempt will be started automati­cally. Make sure that the proper calibra­tion gas is flowing. See Section 3-8a,
page 3-21 for “Calibration adjustment lim­its.”

Calibration Results
The last calibration results can be viewed

by selecting the “Result…” submenu from
the “Zero/span calibration” menu (Figure
3-33, page 3-23). The “Zero/span diag­nostic data” screen will be displayed.

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CLD 7.50 ppm

Date of last zero: Apr 28, 2001
Error message for last zero: CAL OK
Error percentage for last zero: -5
Raw signal at last zero: 0
Last zero gas would read: 0.000 ppm
Date of last span: Arp 28, 2001
Error message for last span: CAL OK
Error percentage for last span: 25
Calibration status: 789542.0
The last span would read: 10.000 ppm

HOME

-- Zero/span diagnostic data --

ESCAPE INFOFACTORS

Figure 3-35. Zero/Span Diagnostic

Data Menu

The errors are expressed as a percentage
of the range.

The last zero and span readings are how
the analyzer would read on those gases
with the current calibration results or fac­tors.

Calibration Factors

Calibration Factors can be used to manu­ally set a calibration by flowing calibration
gas and setting the Factor for zero or
span until the reading conforms to the
calibration gas value. In this way, the user
can force the analyzer to any desired
reading. Alternately, the Factors can be
viewed and recorded after an automatic
calibration.

NOTE

CLD 7.50 ppm

Only those factors appropriate for the current range
Will affect the reading on the current range.
Make sure you are using the right ones!
Measurement range number: 1

Range 1 factors…
Range 2 factors…
Range 3 factors…
Range 4 factors…

HOME

-- Calibration Factors --

ESCAPE INFO

Figure 3-36. Calibration Factors Menu

Move the cursor to the “Range _ fac­tors…” line corresponding to the selected
range and press ↵. The “Range _ Fac­tors” menu will display.

CLD 7.50 ppm

Zero offset: 524287.0
Span factor: 0.000021250
Full scale range at calibration: 250.0 PPM
Measurement range number: 1

Raw measurement signal: 522819.7

-- Range 1 Factors --

HOME

STORE INFONEXT HISTORY

Figure 3-37. Range Factors Menu

Flow the appropriate gas (zero/span)
while adjusting the corresponding factor
(Zero offset/Span factor) until the concen­tration reading is stabilized on the desired
calibration gas value.

If zero calibration is done with other
than a true zero gas followed by a span
calibration, it may be necessary to re­peat the calibration. This is due to the
slope/intercept effect where the sub­sequent span calibration may change
the zero crossing point.

In the “Zero/span Calibration” menu
(Figure 3-33, page 3-23), verify the
“Measurement range number:” is set to
the desired range. If not, move the cursor
to the “Measurement range number:” line

The factors take effect after pressing the
↵ softkey. With zero gas, the zero factor
should be the same as the raw reading.

When the correct zero and span calibra­tion is achieved, press the STORE (F2)
softkey to save the factors.

Use the “Measurement range number”
line to change the range and the NEXT
(F3) softkey to display the factors for the
next range.

and change the setting. Press the
FACTORS (F2) softkey. The “Calibration
Factors” menu is displayed.

3-24 Operation Rosemount Analytical Inc. A Division of Emerson Process Management

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CLD 7.50 ppm

Zero offset: 0.000000
Span factor: 0.000000

Zero offset: 524287.0
Span factor: 0.00021250

HOME

NEXT INFORSTRMN RSTRST

Figure 3-38. Range Factors -

Manufacturer’s/Stored Settings Display

Press the HISTORY (F4) softkey to view
the current stored factors versus the
manufacturer’s (factory) settings. Use the
RSTR MN (F3) softkey to restore the
manufacturer’s settings and the RSTR ST
(F4) softkey to restore the stored settings.

d. Unable to Calibrate

If the user is unable to calibrate the Ana­lyzer Module (i.e., when ZERO or SPAN
is initiated, nothing happens), a possible
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:

1. Select the following from the Main
Menu: “Analyzer and I/O Expert

Range 1 Factors

Manufacturer’s settings

Stored settings

Controls & Setup,” “Analyzer Mod­ule Set Up,” and “Calibration Pa­rameters...”

2. Using the ↓ arrow, select “Zero

Ranges:”, press ENTER and, using
the up/down arrows, toggle to
SEPARATE. Do the same for the
“Span Ranges:” selection. Do not
press ESCAPE at any time unless
retention of prior settings is desired.

3. Return to the “Main Menu” and
make the following selections: “Ana­lyzer and I/O Expert Controls &
Setup,” “Analyzer Module Controls,”
“Zero/Span Calibration,” FACTORS
(F3) softkey, and Range 1 (2, 3, 4)
Factors (do Steps 4 and 5 for each
range).

4. Select “Zero Offset,” press ENTER,
adjust the value to 32700 with the ↑
and ↓ arrow softkeys, and press
ENTER. Do not press ESCAPE at
any time unless retention of prior
settings is desired.

5. Select “Span Factor,” press ENTER,
adjust the value to 0.00015 with the
↑ and ↓ arrow softkeys, and press
ENTER. Do not press ESCAPE
unless retention of prior settings is
desired.

6. Attempt to recalibrate the Analyzer
Module according to the procedure
outlined in Section 3-8c, page 3-23.
If recalibration fails, return to the
Range Factors menu, readjust Zero
Offset and Span Factor values, and
try calibrating again.

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3-9 SYSTEM & NETWORK I/O MODULE CON-

TROLS (SETUP) – SYSTEM SIO

This menu provides access to several sub­menus for setting parameters of the SIO (Sig­nal Input/Output) and DIO (Digital
Input/Output) of the analyzer.

Main Menu

↓

Analyzer and I/O, expert controls &

setup…

↓

System & network I/O module controls…

CLD 7.50 ppm

System SIO module…
System DIO module…

stem & Network I/O Module Controls --

-- S

Measure

>>>Back…<<<

Figure 3-39. System & Network I/O Module

Controls Menu

Press the ↵ or → softkeys to change to the
desired submenu.

If there is no SIO module installed in the ana­lyzer, a corresponding message will be dis­played instead of the menu.

The “System SIO Module” menu provides
submenus for setting up the output configura­tions of the SIO signals. The SIO board can
contain 2 to 8 analog outputs, a serial inter­face (RS232 or RS485), and three relay out­puts. General configuration of the SIO board
is contained in its own manual. If the SIO
board is installed in the analyzer, the line
“Module installed:” must be set to “Yes.”

To access this menu, in “System & network
I/O module controls…”, select “System SIO
module…”.

CLD 7.50 ppm

Analog output setup…

Serial interface setup…

Relay outputs setup…

Module installed: Yes

stem SIO Module --

-- S

Measure

Back…

Figure 3-40. System SIO Module Menu

Select a line with the ↑ or ↓ softkeys.

Select the variable or change to the submenu
with the ↵ or → softkeys.

Select the variable parameter with the ↑ or ↓
softkeys.

Confirm the new value with the Enter ↵ soft­key or cancel and return to the last value with
the F2 softkey.

a. Analog Output Setup

In the System SIO Module menu (Figure
3-40, page 3-26), select Analog output
setup…

CLD 7.50 ppm

-- Anal

zer Modules --

Measure

Figure 3-41. Analyzer Modules Menu

Output number:
Choose the desired analog output (1-8) to

set the parameters. The number of out­puts depends on the analyzer configura­tion as 2, 4, 6, or 8.

CLD: 1.0
MLT/CH1
MLT/CH2
MLT/CH3

>>>Back…<<<

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Choose signal source module…

Select the “Analyzer Modules” submenu
by selecting the “Choose signal source
module…” line and pressing the ↵ soft-
key.

Select the tag of the desired reference
channel with the ↑ or ↓ softkeys and then
press the ↵ or → softkey. The display will
return to the previous menu automatically
and the selected reference channel will be
displayed in the “Source module:” line.

The available selections may be different
depending on the installed modules.
Choose signal…

CLD 7.50 ppm

Output number: 1
Choose signal source module…
Choose signal…
Signal value for 0 % output: 0.00
Signal value for 100 % output: 100.00
Output current: 0…20 mA
Hold output during calibration: No
Signal name: Sample flow
Current signal value: 8.60
Source module: CLD

Measure

-- Analo

Output Setup --

More…Back…

CLD 7.50 ppm

-- Si

nals --

Sample flow:

Sample press:

Ozonator:

Converter temp:

Block temp:

Detector temp:

NO/NOx:

Noise level:

Measure

CLD 7.50 ppm

-- Si

nals --

>>>Back…<<<

t90 time:

Output delay time:

Measure

Calibration status:

Linearizer:

Measurement mode:

Operational status:

Health:

Interference:

>>>Back…<<<

Figure 3-43. Signals Menu

Signal value for 0% (100%) output:

It is possible to set the signal value for 0%
output and for 100% output so as to out­put only a portion of the entire range.

Figure 3-42. Analog Output Setup Menu

Example:

Choose signal…

Select the “Signals” submenu by selecting
the “Choose signal…” line and pressing
the ↵ softkey. (The list of signals will de-
pend on the module chosen.)

Range from 0 to 1000 ppm

0% value to be 400 ppm, 100%

value to be 700 ppm.

Analog output normally: 0V = 0

ppm, 10v = 1000 ppm

After changing the output scaling:

Press the F5 softkey to go to additional

0V = 400 ppm, 10V = 700 ppm

menus to choose the Primary Variable
signal for the analog output. The Primary
Variable is the actual NO or NOx concen­tration.

Move the cursor to the “Signal value for
0% output:” line and adjust the value to

400. Then change to the “Signal value for

100% output:” line and adjust the value to
The signal chosen here will be applied to
the analog output (1-8) chosen above.

See Section 3-7b, page 3-13 for a list of
the signals and their values.

700.

NOTE

If the measurement range is changed,

the settings done in this menu will re-

vert back to the standard values of the

range. The output values can be

changed permanently in the menu

“Range Settings.” See Section 3-7a,

page 3-12.

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NOTE

The signal range of the analog output
should not be less than the smallest
range of the channel. Otherwise the
analog output may exhibit excessive
noise.

Output current:

Select the desired output range in the
“Output current range:” line. The options
are 0…20 mA or 4…20 mA.

Hold output during calibration:

Enable this option to hold the analog out­put to the last value during calibration.

Pressing the F5 (More…) softkey
changes to the submenus “Output Signal
if Assigned Module Fails” and “Fine Ad­justment.”

CLD 7.50 ppm

-- Out

Output(s) value on analyzer failure: BeginOfRange – 10 %

Output number: 1

Operation mode: Normal
Fine adjustment for 0 % output: 4096
Fine adjustment for 100 % output: 819

ut Signal if Assigned Module Fails --

-- Fine Adjustment –

Operation mode:

Normal: The absolute measurement sig-

nal will be sent to the analog output.

Adjust 0V: Used to set the display equal

to the analog output for 0V and 0 mA. Life

zero signals (4-20 mA and 2-10V) are set

automatically and cannot be adjusted.

Adjust 10V: Used to set the display equal

to the analog output for 10V and 20 mA.

Select the “Fine adjustment for 0% out-

put” and/or “Fine adjustment for 100%

output” lines with the ↵ or → softkey. Ad-

just to the desired value with the ↑ or ↓

softkey and confirm with the ↵ softkey.

The range of values are:

3000 to 6000 for 0% (default 4096)

600 to 1000 for 100% (default 819)

The last three lines of the “Analog Output

Setup” menu are display only for configu-

ration values of the analog output.

Signal name: The name of the signal

chosen in the “Choose signal” menu.

Measure

More…Back…

Figure 3-44. Output Signal If Assigned

Module Fails Menu

Output(s) value on analyzer failure:

Choose the desired signal level to cause
a failure condition. The choices are:

Actual
BeginOfRange
EndOfRange
BeginOfRange-10%
BeginOfRange+10%

Output number:

Choose the output number (1-8) for set­ting the fine adjustment.

Current signal value: The current value

of the variable.

Source module: The name of the module

chosen in the “Choose signal source

module” menu.

Pressing the F5 (More…) softkey

changes to the submenu “Special Scaling

for Concentration Signal.”

CLD 7.50 ppm

-- Special Scaling for Concentration Signal –
(Scaling is the same as range limits)

Output #1: Yes
Output #2: Yes
Output #3: Yes
Output #4: Yes
Output #5: Yes
Output #6: Yes
Output #7: Yes
Output #8: Yes

Measure

More…Back…

Figure 3-45. Special Scaling for

Concentration Signal Menu

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This menu allows for the setting of each
of the 8 outputs to be the same as the
range limits “Yes” or as set on the previ­ous menus.

See Section 3-7a, page 3-12 for setting
the range limits.

Pressing the F5 (More…) softkey
changes to the submenu “Analog Output
Updates per Second.”

CLD 7.50 ppm

Output #1: 10
Output #2: 0
Output #3: 0
Output #4: 0
Output #5: 0
Output #6: 0
Output #7: 0
Output #8: 0

Measure

-- Analo

Figure 3-46. Analog Output Updates per

This menu allows for the setting of the
update rate for each of the 8 outputs.

b. Serial Interface Setup

The submenu “Serial Interface Setup” is
used to set the parameters for data trans­fer between the analyzer and external de­vices. The choices in this menu depend
on the configuration of the analyzer. The
full specification of the serial interface is
described in its own manual.

In the System SIO Module menu (Figure
3-40, page 3-26), select “Serial interface
setup…”

CLD 7.50 ppm

Baud rate: 19200
Data bits: 8
Stop bits: 1
Parity: None
Echo mode: Disabled
Handshake: Xon/Xoff
Transmission delay: 0
Type of installed serial interface: RS232
Communication protocol: AK
Special protocol definitions…

Measure

Figure 3-47. Serial Interface Setup

Output Updates per Second --

Back…

Second Menu

-- Serial Interface Setu

Menu

--

Back…

Options:

Baud rate: 300, 1200, 2400, 4800, 9600,
19200

Data bits: 7, 8
Stop bits: 1, 2
Parity: None, Even, Odd
Echo mode: Enabled, Disabled
Handshake: None, Xon/Xoff
Transmission delay: 0…100.

Type of installed serial interface: RS232,
RS485/2w, RS485/4w, RS485/4w bus,
None

Communication protocol: AK, MODBUS
RTU, None (not applicable to CLD)

The “special protocol definitions…”
line accesses a submenu for setting
the parameters of the AK and MODBUS
TRU communication protocols.

CLD 7.50 ppm

Device address (RS-485 only): 1

Measure

Figure 3-48. AK Protocol Definitions

The value can range from 1 to 50.

c. Relay Outputs Setup

There are three relays on the SIO board.
The contact logic can be set with a jumper
on the SIO board to select NO (normally
open) or NC (normally closed). Full details
of the SIO board are contained in its own
manual.

In the System SIO Module menu (Figure
3-40, page 3-26), select “Relay outputs
setup…”

NOTE

-- AK Protocol Definitions --

Back…

Menu

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CLD 7.50 ppm

Output number: 1
Invert signal: Disabled
Choose source module…
Choose signal…

Signal comes from: Control module
Signal name: Failure
Actual status: Off

Measure

-- Rela

Outputs Setup --

Back…

Figure 3-49. Relay Outputs Setup Menu

Output number:

Corresponds to the relay number 1-3.

The list of modules will depend on the in­stalled modules.

Choose signal

CLD 7.50 ppm

Measure

…

-- Choose Si

nal --

Function control

Maintenance reques

Zero in progress

Span in progress

Back…

Failure

Cal. In progress

Zero failed

Span failed

Figure 3-51. Choose Signal Menu

Choose desired signal for the relay output

Invert signal:

number (1-3) being configured.
“Disabled” signal is normal, “Enabled”
signal is inverted.

The list of signals will depend on the cho-

sen module. If available, press the >>>

Choose source module..

CLD 7.50 ppm

-- Choose Source Module --

Control module: 0.0

CLD: 1.0

(F5) softkey for additional signals.

The three lines displayed at the bottom of

the “Relay Outputs Setup” menu show the

current status of the selected relay output.

Signal comes from: The module chosen

from the “Choose Source Module” menu.

Measure

Back…<<< >>>

Figure 3-50. Choose Source Module

Menu

Signal name: The signal chosen from the

“Choose Signal” menu.

Actual status: The current status of the

signal; Off or On.

Choose desired source module for the re­lay output number (1-3) being configured.

3-30 Operation Rosemount Analytical Inc. A Division of Emerson Process Management

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3-10 SYSTEM & NETWORK I/O MODULE CON-

TROLS (SETUP) – SYSTEM DIO

Selecting “System DIO module…” from the
“System & Network I/O Module Controls”
menu (Figure 3-39, page 3-26) provides sub­menus for setting up the output configurations
of the DIO signals. The DIO board is com­prised of 8 digital inputs and 24 digital out­puts. Functions of supported analyzer
modules can be attached to each input and a
signal to each output. Further detailed infor­mation about the DIO board is contained in its
own manual.

If there is no DIO module installed in the ana­lyzer, a corresponding message will be dis­played instead of the menu.

Main Menu

↓

Analyzer and I/O, expert controls & setup…

↓

System & Network I/O Module Controls…

↓

System DIO module…

CLD 7.50 ppm

Input number: 1
Output number: 1
Choose module…
Choose signal…
Invert signal: No
Module status: ???
Slot ID: ???
Signal name: ???
Signal level: 000.0
Signal comes from: ???

Measure

stem DIO Module --

-- S

Back…

Figure 3-52. System DIO Module Menu

For detailed information on the installation and
setup of the DIO module, see the NGA 2000
Platform manual P/N 760006.

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3-11 SYSTEM CONFIGURATION AND DIAGNOS-

TICS

This menu and its submenus provides for
setup of the system parameters for the plat­form.

Main Menu

↓

System configuration and diagnostics…

CLD 7.50 ppm

stem Configuration and Diagnostics --

-- S

System calibration…
Diagnostic menus…
Load/Save configuration (CM/MCA)
Date and time…
Security codes…
Network module management…
System reset…
Pump 1: Off
Pump 2: Off
System tag:

Measure

Channel

Back…

Figure 3-53. System Configuration and

Diagnostics Menu

The following is a short overview of the con­tents of the menus:

1

System calibration…

Diagnostic menus…

Control module diagnostics…

1

Analyzer module diagnostics…
Software error messages

Loading/saving configuration parame­ters…

Sending or loading of analyzer configuration
data by the serial interface

Date and time…

Date and time setup of the analyzer

a. Diagnostic Menus

From the “System Configuration and Di-

agnostics” menu (Figure 3-53, page 3-

32), select “Diagnostic menus…”.

CLD 7.50 ppm

Control module diagnostics…
Analyzer module diagnostics…

Measure

Figure 3-54. Diagnostic Menu

This menu has two submenus for viewing

and resetting any software errors.

The “Control module diagnostics” menu is

not applicable to this analyzer model.

Analyzer Module Diagnostics

From “Diagnostic Menus” (Figure 3-54,

page 3-32), select “Analyzer module di-

agnostics…”

CLD 7.50 ppm

Power supply voltages…
Primary variable parameters…
Physical measurement…
Temperature control parameters…
NO/NOx flow balance…
Miscellaneous control parameters…
Trend display control…
Software diagnostic s…
Alarm message valid for: FAILURE
Start up analyzer…
NOx converter efficienc

HOME

ESCAPE

-- Diagnostics Menus --

<<<

-- Analyzer Diagnostics --

…

Back…

>>>

INFO

Security codes…

Setup of security codes for the different oper­ating levels

Network module management…

1

System reset…

System reset and re-initializing of the analyzer

Figure 3-55. Analyzer Diagnostics Menu

This menu provides access to several

submenus for viewing and adjusting the

various CLD module parameters.

Choose one of the submenus to view or

adjust the parameters.

The “Alarm messages valid for:” functions

1

Not used in this module. See NGA 2000 Platform man-

ual PN 760006.

3-32 Operation Rosemount Analytical Inc. A Division of Emerson Process Management

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choices:

Model NGA2000 CLD

Instruction Manual

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November 2002

WARNING
FAILURE
SAFETY FAILURE

“Calibration factors…” see Section 3-8c.
ANY

Physical measurement…
Power supply voltages…

CLD 7.50 ppm

+15V analog is: 15.06 V
+15V analog was: 0.0 V

-15V analog is: 15.26 V

-15V analog was: 0.0 V
+5V digital is: 4.980 V
+5V digital was: 0.0 V
+25V power is: 23.73 V
+25V power was: 0.0 V
+12V analog is: 11.98 V
+12V analog was: 0.0 V

HOME

-- Analyzer Diagnostics -­Power supply voltages

ESCAPE

MORE

INFO

Figure 3-56. Power Supply Voltages Menu

The “is” lines show the current value of
the power supplies. The “was” values
show the values when the analyzer was
manufactured. Changes of more than a
few percent should be tracked. The 24V
power supply may differ substantially if
the Rosemount Analytical power supply is
not used. Use the MORE (3) softkey to
see additional values.

Refer to Figure 3-14, page 3-13. These
are measurements made by the analyzer
module to verify proper functioning and
appropriate flows of sample and support
gases, if any. See Section 3-7i, page 3­18 for a complete description.

Temperature control parameters…

CLD 7.50 ppm

Converter set point: 300 C
Converter P gain: 0.015
Converter I gain: 0.000125
Converter bias: 0.6 C
Converter temperature: 28.6 C
Detector set point: 51.5 C
Detector P gain: 0.100
Detector I gain: 0.000170
Detector bias: 0.4 C
Detector temperature: 29.2 C

HOME

Temperature control

ESCAPE

MORE

INFO

Figure 3-58. Temperature Control Menu

(Screen 1)

Displays the parameters used by the
temperature control PID algorithms. Al­lows setting of the warning alarms for the
temperatures.

Primary variable parameters…

CLD 7.50 ppm

Raw measurement signal: 521651.7
Signal gain setting: 64
Current range: 1
Barometric pressure compensation: Enabled
Pk-pk noise: 39.9 ppm
Peltier device voltage: Failure
Reference duty cycle: 0.2785000
Duty cycle coefficient: -0.0681700
(Temperature compensation coefficients…)
Calibration factors…

HOME

Primary variables parameters

ESCAPE

INFO

Figure 3-57. Primary Variable Parameters

Menu

Shows the value of internal parameters
used in the primary variable calculation.

Barometric pressure compensation may
be enabled if another analyzer has a

Press the MORE (F3) softkey for the
Ozonator settings.

CLD 7.50 ppm

Ozonator set point: 58.0 C
Ozonator P gain: 0.100
Ozonator I gain: 0.000170
Ozonator bias: 0.4 C
Ozonator temperature: 29.2 C

Minimum full-on block FET current: 1.000 A

Temperature control

HOME

ESCAPE

INFO

Figure 3-59. Temperature Control Menu

(Screen 2)

Displays the parameters used by the
temperature control PID algorithms.

Allows setting of the warning alarms for
the temperatures.

pressure measurement device and is set
to report its reading.

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NO/NOx flow balance…

b. Load/Save Module Configuration

CLD 7.50 ppm

NO/NOx flow balance

From the “System Configurations and Di­agnostic” menu (Figure 3-53, page 3-32),
select “Load/save configuration

NOx correction factor: 1.0000

Calculate factor using pressure ratio…

Calculate factor using span gas response ration…

HOME

ESCAPE

INFO

Figure 3-60. NO/NOx Flow Balance Menu

Since the sample flows through separate
paths in the NO and NOx mode of meas-

(CM/MCA)…

This menu provides several functions to
send or load configuration data of the
analyzer through the serial interface.
These functions are only available if an
SIO with serial interface is installed.

NOTE

When loading configuration data all of
the current configuration in the mem­ory will be overwritten.

urement, there are differences in the flows
entering the reaction chamber of the two
modes. The CLD analyzer uses a correc­tion factor in the NOx mode to compen­sate for the reduced flow rate. This
correction factor can be entered manually
or it can be calculated by the analyzer us­ing one of two methods. One is based on
adjusting to respond equally to a span
gas and the other is based on adjusting
for equal capillary pressure.

To start the automatic measurement and
flow balance calculation cycle, enter the
appropriate menu and follow the direc­tions.

CLD 7.50 ppm

This procedure will calcul ate the NO/NOx flow balance
correction factor by measuring the capillary head both the
NO pressure used in both the NO and NOx modes and
using the ratio between the two pressures as the correction
factor.

Press the CALC softkey to start the measurement and
calculation.

Status: Factor entered manually

HOME

Calculate factor using pressure ratio

ESCAPE

CALC

INFO

Figure 3-61. Calculate Factor Using

Pressure Ratio Menu

It is recommended to flow the gas at the
same pressure and flow rate as the sam-

CLD 7.50 ppm

Send configuration to s erial interf ace!
Load configuration from serial interface!

-- Load/Save Configuration (CM/MCA)

- BE CAREFUL with this functi on -

Replace current configuration with fac tory settings!

Measure

Back…

Figure 3-62. Load/Save Configuration

(CM/MCA) Menu

If asked, confirm with the F2 (Yes) softkey
or cancel and go back to the menu page
with the F4 (Back…) or ← softkey.

Send configuration to serial interface !

The configuration data in memory will be
sent through the serial interface of the
analyzer to an external computer or other
device.

Load configuration data from serial in­terface !

Configuration data will be loaded into
memory from an external computer or
other device through the serial interface of
the analyzer. The current configuration in
memory will be overwritten.

ple gas.

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Replace current configuration with fac­tory settings !

Deletes the configuration in memory and
re-establishes the factory default setting
from the Flash-EPROM.

c. Date and Time

From the “System Configurations and Di­agnostic” menu (Figure 3-53, page 3-32),
select “Date and time…”

CLD 7.50 ppm

Minutes: 0
Hours: 12

ear: 2000
Day: 1
Month: 2

Network updating: Enabled
Current time: 08:45:35 February 01, 2000

Measure

Figure 3-63. Date and Time Menu

This menu is used to set the date, time
and format for the analyzer.

Select a line with the ↑ or ↓ softkeys.

Press the ↵ or → softkeys to select the
parameter.

Select any digit with the ← or → softkey
and set a new value with the ↑ or ↓ soft-
key.

Network updating:

Not used with this model.

-- Date and Time --

Set!

Back…

This menu is used to set the security
codes for the three levels of security.

CAUTION

If a security code is lost or forgotten,
there is no possibility of entering the
locked security level.

CLD 7.50 ppm

Basic level security: Disabled

Expert level security: Disabled

System level security: Disabled

Define basic level security PIN…
Define expert level security PIN…
Define system level security PIN…

Measure

-- Security Codes --

Back…

Figure 3-64. Security Codes Menu

Use the function softkeys F1 to F5 to en­ter the numerical security code in the de­sired sequence. The numbers will appear
in the “Actual PIN” line as they are en­tered. The characters displayed on the
function softkeys cannot be entered as
code numbers.

Setting the code numbers

Enter the submenu for the desired secu­rity level to set the PIN. The default val­ues are:

Basic level: 12345
Expert level: 54321
System level: 12345

Set up a new date or time:

Set the “Minutes,” “Hours,” “Year,” “Day,”
or “Month” lines and make any desired
adjustments. Press the F3 softkey to set
the new time and date. The “Current time”
line will change to reflect the new time
and date set.

d. Security Codes

From the “System Configurations and Di­agnostic” menu (Figure 3-53, page 3-32),
select “Security codes…”

Rosemount Analytical Inc. A Division of Emerson Process Management Operation 3-35

Example:

CLD 7.50 ppm

The actual PIN is prepresented by the order in which they

Actual PIN: 12345

BCDE1

-- Define Basic Leve l Security PIN --

Press five softkeys in any order to define the PIN

are pressed, and shown numberically below.

Press the left arrow key when you are done.

FGHIJ2

KLMNO3

PQRST4

UVWXYZ5

Figure 3-65. Define Basic Level Security

PIN Menu

Instruction Manual

760000-C
November 2002

Model NGA2000 CLD

Enable Security Code

Select the desired security level line to
enable. Change the parameter to “En­abled.”

Once a locked security level has been
entered, it will remain unlocked even
after exiting to a different security
level. To protect the level, press the F4

NOTE

(Lock..) softkey in the Main Menu after

CAUTION

If System level is enabled, it will not be
possible to re-enter the Security Setup

returning from the locked level.

Press the ← softkey to return to the “Se­curity setup” menu.

and change back to Disabled without
the code.

Entering a level locked by security code

For example, return to the Main Menu by
pressing the F4 softkey twice.

Attempt to enter an enabled level by
choosing the menu line. A new menu will
appear requesting entry of the security
code. Enter the correct code using the
correct sequence of function softkeys.
The asterisk (*) symbol will appear for
each entry.

e. System Reset

From the “System Configurations and Di­agnostic” menu (Figure 3-53, page 3-32),
select “System reset…”

CLD 7.50 ppm

-- System Reset --

System reset!

Measure

Are you sure?

Back…

If the code is incorrect, the message
“Ready” will appear in the line and access
to the locked level is prevented. If the
code is correct, the display will change to
the locked level after the last digit of the
correct code is entered.

Figure 3-66. System Reset Menu

Resets the analyzer to the initializing
mode which is the same as switching the
power off and then on.

3-36 Operation Rosemount Analytical Inc. A Division of Emerson Process Management

Model NGA2000 CLD

Instruction Manual

760000-C

November 2002

3-12 CONVERTER TEMPERATURE ADJUST-

MENT

The vitreous carbon converter used in this
analyzer module must be checked periodically
to assure that it is working at peak efficiency.
The efficiency of the converter is typically 95%
to 98%, that is, 95% to 98% of the nitrogen
dioxide introduced to the module is reduced to
nitric oxide. That is well above the 90% mini­mum required by the Environmental Protec­tion Agency. (Refer to 40 CFR 60, App. A,
Method 20)

Two conditions reduce the efficiency of the
converter:

• The converter is operating at too low a tem-

perature and the efficiency drops or

• The converter is operating at too high a

temperature and the nitrogen dioxide is re­duced to nitrogen, which is not detectable by
the chemiluminescence reaction.

Initially, an interval of one week between con­verter efficiency checks is recommended be­cause high temperature operation changes
conditions inside the converter. The active
surface area of the vitreous carbon increases
through use. Initially, when the surface area is
low, the temperature at which converter effi­ciency peaks is relatively high. This peak
temperature moves downscale as surface
area increases, and less external energy is
required to cause adequate conversion.

The nominal range of converter operational
temperatures is 300°C to 400°C (572°F to
752°F). The current converter temperature
can be viewed in the “Physical measurement”
menu. To access the converter temperature
adjustment:

Main Menu

↓

Analyzer and I/O expert controls &

setup…

↓

Analyzer module setup…

↓

Physical measurements parameters…

Follow this procedure to optimize the operat­ing temperature of the converter:

1. Power up the module and allow it to stabi­lize at operating temperature (about one
hour).

2. Check the Converter Temperature in the
Physical Measurements menu (See Sec­tion 3-7b, page 3-13). Note the value for
future reference.

3. Introduce a calibration gas of known
(NO

) concentration into the analyzer and

2

note the concentration value determined
when the full response has been
achieved.

4. Change Converter Setpoint in the “Tem­perature Control” menu to 300°C (See
Section 3-11a, page 3-32). Allow module
15 minutes to stabilize, recheck the con­centration value and note the value for
later use.

5. Increase the Converter Setpoint value by
20°C, wait 15 minutes, and note the con­centration value. Repeat this step until ei­ther a converter efficiency of between
95% and 98% is obtained or the final
20°C increment produces an efficiency in­crease of less than one percent.

6. Decrease the Converter Setpoint value by
5°C, which places the converter at a tem­perature suitable for low ammonia inter­ference and efficient NO

7. Recheck the Converter Temperature
value in the “Physical Measurements”
menu, and compare it to the initially re­corded value.

conversion.

2

NOTE

Converter temperature is not a direct
measure of converter efficiency. Tempera­ture measurement is for reference pur­poses only.

Rosemount Analytical Inc. A Division of Emerson Process Management Operation 3-37

Instruction Manual

760000-C
November 2002

Model NGA2000 CLD

3-13 MEASUREMENT OF CONVERTER EFFI-

CIENCY

It is the responsibility of the user to measure
efficiency of the NO2-to-NO converter during
initial startup and thereafter at intervals ap­propriate to the application (normally once a
month).

The reactant material used in the converter
provides the optimum combination of high
conversion efficiency and low ammonia inter­ference. Unlike most competitive analyzers,
the NGA 2000 CLD Analyzer Module utilizes a
reactant material that gradually becomes
more efficient at a given temperature. Thus,
after a period of use, operation at a lower
temperature setpoint than initially required is
possible.

a. Test Setup for Measurement of Con-

version Efficiency

A typical setup for measurement of con­version efficiency is shown in Figure 3-67,
page 3-41. The test setup includes:

A cylinder of nitric oxide standard gas
consisting of NO in N

The concentration of NO in the standard
gas should be about the full-scale value of
the range under test. The test sample
supplied to the analyzer should contain a
concentration of NO comparable to that in
the samples that are to be analyzed. Al­ternatively, a higher concentration NO
standard may be used if the test setup in­cludes provision for diluting it appropri­ately with zero air. Suitable standard
gases are available from various suppli­ers. Stainless steel cylinders are com­monly used, but specially treated
aluminum is preferred for low
parts-per-million NO samples.

An ozone generator utilizing an ultraviolet
lamp, not a corona discharge

A corona discharge ozone generator is
undesirable because it may produce oxy­gen atoms, which can then combine with
atmospheric nitrogen to form NO. The re-

2

sult can be an erroneously high value for
the measured conversion efficiency.

b. Test Procedure

1. Measure converter temperature in

the sub-menu structure as de­scribed in Section 3-7i, page 3-18.
Note present reading as a reference
for comparison with subsequent
readings.

2. Lower converter temperature to

300°C as described in Section 3­11a, page 3-32, Temperature Con­trol Parameters, and wait 15 min­utes for temperature equilibration.

3. (See Figure 3-67, page 3-41) Con-

nect the Model 958 Converter Effi­ciency Tester to the CLD Module,
and follow Steps 4 through 17 below
(as adapted from 40 CFR 60):

4. Attach the NO/N

air supply to C1, and the CLD Mod­ule inlet fitting to C3.

5. With the variable transformer off,

switch the CLD Module to NO
mode, and close valve MV1.

6. Open valve MV2 until the CLD

Module SAMPLE Pressure Gauge
reaches operating pressure and the
BYPASS flowmeter indicates some
bypass flow. Wait until stable read­ings are obtained by the CLD Mod­ule.

7. Zero and span the Analyzer output

to indicate the value of the NO con­centration being used. This value
should be about 80% of full-scale.
Record this concentration.

8. Open valve MV1 (air supply meter-

ing valve) and adjust to blend
enough air to lower the NO concen­tration (as noted above) about 10%.
Record this concentration.

9. Power up the ozonator, and in-

crease its supply voltage until the

supply to C2, the

2

3-38 Operation Rosemount Analytical Inc. A Division of Emerson Process Management

Model NGA2000 CLD

Instruction Manual

760000-C

November 2002

NO concentration noted in Step 8 is
reduced to about 20 percent of the
concentration noted in Step 7. Wait
for stabilization. NO
formed from the NO + O

is now being

2

reaction.

3

There must always be at least 10
percent un-reacted NO at this point.
Record this concentration.

10. Switch the CLD Module to NOx
mode. Total NOx concentration is
now output to the network for dis­play. Record this concentration.

11. Turn off the ozonator, and allow the
Analyzer reading to stabilize. Total
NOx concentration of the dilute NO
span gas initially used is displayed.
Record this concentration.

12. Close valve MV1. The NO concen­tration should be equal to or greater
than the reading in Step 7. This in­dicates whether the NO contains
any NO

.

2

In the initial measurement, after
lowering the temperature setpoint
in Step 2, the efficiency will nor­mally be less than 92%.

14. Reset converter temperature setpoint

20°C higher, wait 15 minutes for
temperature equilibration, and
measure conversion efficiency by re­peating Steps 3 through 13. Conver­sion efficiency should be improved.

15. Repeat Step 14 until: a) 95% to 98%
efficiency is attained or b) the final
20°C converter temperature adjust­ment yields an increase in efficiency
of less than 1%.

16. Reset converter temperature setpoint
5°C lower. Converter temperature is
now set to the front edge of the pla­teau on the effi­ciency-vs.-temperature curve. (See

NOTE

Figure 3-68, page 3-42.) This setting

13. Calculate the efficiency of the NO
converter by substituting the con­centrations obtained during the test

should provide the optimum combi­nation of high conversion efficiency
and low ammonia interference.

in the equation below:

17. Wait 15 minutes for temperature

%efficiency = 1 + x 100

a - b

-

Where:

a = recorded concentration in Step 10

equilibration, and check converter
temperature. Compare present tem­perature with original value. Nor­mally, converter temperature should
be in the range of 300°C to 400°C
(572°F to 752°F).

b = recorded concentration in Step 11
c = recorded concentration in Step 8
d = recorded concentration in Step 9

In the example in Figure 3-67B, page
3-41, the following calculations would
apply:

c. Subnormal Conversion Efficiency

If a measured conversion efficiency of be­tween 95% and 98% is unobtainable
within the normal temperature range, the
most probable cause is depletion of the
catalytic material within the converter.

%efficiency = 1 + x 100 = 92%

Efficiency checks should be made on
each analyzer range, using an NO
span gas concentration appropriate
to the instrument range.

Rosemount Analytical Inc. A Division of Emerson Process Management Operation 3-39

80 - 85

-

However, before concluding that the con­verter is defective, ensure that the con­version efficiency measurement is
accurate. Though the measured efficiency
is less than the 95% to 98% range, the
actual efficiency may be somewhat
higher.

Instruction Manual

760000-C
November 2002

Model NGA2000 CLD

An apparent subnormal efficiency can be
due to a problem external to the Analyzer
Module, perhaps located either within the
test setup or between it and the Analyzer
Module. Check the following:

1. Leakage.

2. Loss of NO
Analyzer Module. Such loss can oc­cur by reaction with a rubber dia­phragm in a pressure regulator or
flow controller. Stainless steel dia­phragms are preferred. Loss can
also occur during passage through
filter media.

d. Replacement of Converter

If the subnormal conversion efficiency is
real, and not due to measurement error
introduced by the test setup, the converter
must be replaced. See Section 4-4, page
4-1.

between test setup and

2

The usual cause of converter failure is
destruction of a large part of the catalytic
material by excessive heat. This is due ei­ther to an excessively high temperature
setpoint or failure of the converter tem­perature control circuitry.

e. Capillaries

Replacement vent and pump capillaries
should be installed finger-tight. Use of a
wrench can constrict capillaries, thus
changing flow rate. Sample capillary is
metal; use a wrench for tightening.

f. TEA Scrubber

The presence of NO2 in the NO cylinders
can cause inaccurate converter efficiency
values. The TEA Scrubber accessory
(P/N NL635741) can be used to remove
residual NO
of this accessory allows an NO2-free NO
calibration gas.

from the NO cylinders. Use

2

3-40 Operation Rosemount Analytical Inc. A Division of Emerson Process Management

Instruction Manual

760000-C
November 2002

A. TYPICAL TEST SETUP

FLOWMETER
FM2

METERING
VALVE MV2

Model NGA2000 CLD

CONNECTOR C3

TO SAMPLE INLET OF

OFF

115

ON

VAC

VARIABLE
TRANSFORMER

T1

OZONATOR
UTILIZING
ULTRAVIOLET
LAMP

FLOWMETER
FM1

CLD ANALYZER MODULE

FLOW APPROXIMATELY 3
LITERS PER MINUTE

CONNECTOR C2

STANDARD GAS:
NO IN N

BACKGROUND

2

ALL LINES AND FITTINGS STAINLESS STEEL OR TEFLON

B. TYPICAL TEST RESULTS

NO in

2

N

85

90

80

AIR ADDED

OZONATOR OFF

OZONATOR
ON

CONNECTOR C1

ZERO AIR

METERING
VALVE MV1

CAUTION: Externally limit sample
flow rate to less than 2200 cc/min.

a-b

c-d

20

0

c

NO Mode

a

d

TO NOX
MODE

NOX Mode

b

% Efficiency = 100

a - b

1+

( )

c - d

Figure 3-67. Measuring Efficiency of NO2 to NO Converter

3-42 Operation Rosemount Analytical Inc. A Division of Emerson Process Management

Model NGA2000 CLD

A

bout

Instruction Manual

760000-C

November 2002

97%

Final 2 degree
higher

adjustment

Final 1 degree lower

Converter
Efficiency

adjustment

Converter Temperature

Figure 3-68. Conversion Efficiency as a Function of Converter Temperature

Rosemount Analytical Inc. A Division of Emerson Process Management Operation 3-43

Model NGA2000 CLD

MAINTENANCE AND SERVICE

Instruction Manual

760000-C

November 2002

SECTION 4

WARNING.

ELECTRICAL SHOCK HAZARD

Disconnect power to the module(s) prior to replac­ing components.

This equipment should not be adjusted or repaired
by anyone except properly qualified service per­sonnel.

4-1 OVERVIEW

The CLD Analyzer Module requires very little
maintenance during normal operation.

Occasionally, the intake fan screen may require
cleaning, refer to Section 4-3, page 4-1.

Also, the detector's reaction chamber and sap­phire window may require cleaning, refer to Sec­tion 4-7, page 4-3.

White crystal deposits on the windows of the reac­tion chamber and plugging of capillaries and vent
are usually due to sample contaminates such as
ammonia reacting with the high ozone levels and
NO components. To eliminate the contaminates,
the sampling system should be reworked or a pre­ventive maintenance program developed (if drop­out is not excessive). Another source of crystalline
formation is contaminated air.

Several components may require replacement.
These are discussed in the following sections.

4-2 FUSES

The main power fuse may require replacement.

NOTE

Before replacing the fuse, remove power to
the Analyzer Module.

See Figure 1-3, page 1-3 for the location of the
Power Supply Board main power fuse, which
protects 24 VDC input to the module.

4-3 FANS

Refer to Figure 4-1, page 4-2. To replace ei­ther rear panel fan, remove the cover of the
Analyzer Module and then the rear panel.
Disconnect connectors and remove screws.
Assemble in reverse order.

4-4 CONVERTER

Refer to Figure 4-1, page 4-2 and Figure 4-2,
page 4-3. To replace the converter or sensor,
disconnect the two pneumatic tubes and two
electrical connections. Unlace the heater
blanket, and remove the converter. Reassem­ble in reverse order, ensuring that the con­verter is oriented with the glass cloth at the
bottom and the sensor is oriented correctly in­side the heater jacket.

4-5 OZONATOR

Refer to Figure 4-1, page 4-2.To replace the
ozonator, remove the two large straps and all
tie-wraps, and disconnect the one electrical
connection. Reassemble in reverse order.

4-6 PRINTED CIRCUIT BOARDS

All four printed circuit boards can be replaced,
if necessary. Refer to Figure 4-1, page 4-2 for
location of the Driver, Power Supply, Signal
and Computer Boards.

To remove any PCB (except the Computer
Board), disassemble the enclosure side first.
Ribbon and other cables are long enough to
allow the entire side to be folded out from the
remainder of the components. This makes
PCB removal much simpler.

Tag each connector and its location before
disconnecting any wiring. This helps in reas­sembly.

Rosemount Analytical Inc. A Division of Emerson Process Management Maintenance and Service 4-1

Instruction Manual

760000-C
November 2002

Optional Bypass Flow Sensor.

4

Ground wires from ozonator shown.

3

Flow direction of intake fan (shown) is into case. Flow direction of exhaust fan is out of case.

2

1

Fan guard between fan and EMI filter is on the intake fan only (shown).

PCB Insulators

Flow Balance
Metering Valve
903207

Ozonator
659494

Signal
Board
655580

Insulator

Computer Analysis
Board 655520

Transistor
655264

Driver
Board
655620

Sample
Pressure
Sensor
655253

Sample
Regulator
655269

NO/NOx Solenoid
655263

Thermostat
657298

4

Flow Sensor
902931

Glass Tube
Connectors

Pressure Switch 662298

Ozonator Power Supply
657716

Ozone
Pressure
Sensor
655254

Fuse, Power
903347

3

LON/Power
Module

Fan Guard

Figure 4-1. CLD Module Assembly

Model NGA2000 CLD

Converter Assembly 655250
See Figure 4-2

1

Fan Guard

EMI Shield

2

Fan
655245

Detector Assembly 658160
See Figure 4-3

Detector Case
Insulator

Power Supply
Board 657520

4-2 Maintenance and Service Rosemount Analytical Inc. A Division of Emerson Process Management

Model NGA2000 CLD

r

r

r

r

Instruction Manual

760000-C

November 2002

ASSEMBLED SIDE VIEW

Senso

Glass

Cloth

4-7 DETECTOR DISASSEMBLY

Refer to Figure 4-3, page 4-5.

a. Reaction Chamber Removal

Disconnect the stainless steel tubing lines at
the fittings. Remove the (4) nuts holding the
Detector Assembly to the chassis. Discon­nect the plug from connector J1 on the Sig­nal Board and remove the assembly from the
chassis.

NOTE

Care should be taken to avoid getting
heatsink compound on optical surfaces. If
this substance is removed during the dis­assembly process, a zinc-oxide-filled,
silicone grease (e.g., Dow Corning 340 or
EG&G Wakefield Engineering's Series 120
Thermal Joint Compound) be reapplied in
the reassembly of this component.

Heate

Jacket

655228

Converte

Tube 655227

Wrap with
aluminum foil

Figure 4-2. Converter Assembly

Remove the (2) screws holding the tube
assembly in place. Hold the tubing with
one hand while inverting the Detector
Housing with the other, allowing the Re­action Chamber O-ring and window to be
removed from below.

b. Reaction Chamber Installation

To reinstall, hold the housing in the in­verted position while sliding the Reaction
Chamber O-ring and window into position
and the tubing into the slot in the housing.
Hold the Reaction Chamber in place while
rotating the housing upright. Replace the
hold-down screws.

The procedure described above is for
the purpose of maintaining the relative
positions of windows and O-ring to the
Reaction Chamber during installation.

Senso

655282

NOTE

Although the heater and thermostat can be
removed to facilitate handling, contact with
the white heatsink compound can be mini­mized by leaving these items in place. Re-

Replace the top cap and screws. Reverse
the removal procedure to reinstall the De­tector Assembly into the Analyzer Mod-

ule.
move the (2) screws holding the top plate of
the Detector , and move the plate along the
wires and away from the Detector .

Rosemount Analytical Inc. A Division of Emerson Process Management Maintenance and Service 4-3

Instruction Manual

760000-C
November 2002

Model NGA2000 CLD

c. Photodiode Removal

Remove the Detector Assembly as described
above. Invert the housing to access the
mounting bracket. Remove the (3) screws
and shoulder washers from the bracket. Re­move the bracket, insulating disk and bottom
plate as a unit to minimize the spread of the
heatsink compound.

Remove the (2) screws holding the lower
section of the Detector Housing, then slide
the section along the cable and remove.

Remove the (2) screws holding the socket,
thermistor and photodiode in place, being
careful not to lose the washers that are used
as shims.

Grasp the socket and photodiode base while
slowly rotating to separate the photodiode
from the housing. Some friction will be felt as
an O-ring is used around the photodiode as a
seal.

d. Photodiode Installation

To replace the photodiode, carefully remove
the diode from the green socket, and replace
with a new one. Before mounting the new di-

ode, the top cap of the enclosure should

be temporarily removed and the (2)

screws holding the Reaction Chamber

loosened about two turns. This allows air

which is trapped between the O-ring seals

to escape when the diode is inserted. It

also maintains the position of the O-ring

and window in the upper compartment.

The new photodiode should be slowly in-

serted into the housing while gradually ro-

tating the body. This allows the O-ring to

properly seat. Continue replacing screws,

washers, thermistors, etc., with the thicker

shim (washer) on the opposite side of the

socket from the thermistor.

Replace the lower section of the housing,

then the bottom cover, insulator and

bracket with the shoulder washers and

screws.

Re-tighten the screws in the Reaction

Chamber (upper section). Replace the top

cap and its screws.

To reinstall in the Analyzer Module, re-

verse the procedure for removal as indi-

cated above.

4-4 Maintenance and Service Rosemount Analytical Inc. A Division of Emerson Process Management

Model NGA2000 CLD

A

Instruction Manual

760000-C

November 2002

Sapphire
Window

Photodiode

Reaction
Chamber

Thermistor

Assembly

Exhaust

Heater

*

M3X0.5 x 16 mm Screw (2)
3mm Spring Washer (2)

Photodiode Socket

ssembly

Detector Mounting
Bracket

Heater

*

Thermostat

Tubing Cover

M3X0.5 x 25 mm Screw (2)
3mm Spring Washer (2)

Detector Header

Retainer Gasket

*

Reaction Chamber

O-Ring 854540

Sapphire Window

Cushioning Gasket

Ozone

Sample

Photodiode
Cable

Lower Cover

Insulator
(between Lower Cover
and Mounting Bracket)

Photodiode Case
Ground

M3X0.5 x 16mm
Screw (3)

Nylon Shoulder
Washers (3)

O-Ring 876478

Photodiode Assembly
(see detail below)

M3X0.5 x 20 mm Screw (2)

(see detail below)

3mm Spring Washer (2)

Detector Cover

M3X0.5 x 16 mm Screw (2)
3mm Spring Washer (2)

Heater/Thermostat Assembly 655235.

*

Photodiode
655258

Thermistor
655216

Thermistor Shim

Thermistor Spacer

No. 6 Flat Washer (2)

Photodiode Socket Assembly

Assembly of Photodiode

Figure 4-3. Detector Assembly

Rosemount Analytical Inc. A Division of Emerson Process Management Maintenance and Service 4-5

Instruction Manual

760000-C
November 2002

Model NGA2000 CLD

4-6 Maintenance and Service Rosemount Analytical Inc. A Division of Emerson Process Management

Model NGA2000 CLD

TROUBLESHOOTING

5-1 LEAKS

Liberally cover all fittings, seals, and other
possible sources of leakage with a suitable
leak test liquid such as SNOOP (part

837801). Bubbling or foaming indicates leak­age. Checking for bubbles will locate most
leaks but could miss some, as some areas
are inaccessible to the application of SNOOP.
For positive assurance that system is leak
free, perform one of the tests above.

Instruction Manual

760000-C

November 2002

SECTION 5

Rosemount Analytical Inc. A Division of Emerson Process Management Troubleshooting 5-1

Instruction Manual

760000-C
November 2002

Model NGA2000 CLD

5-2 Troubleshooting Rosemount Analytical Inc. A Division of Emerson Process Management

Instruction Manual

760000-C

Model NGA2000 CLD

November 2002

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 CLD sales matrix
which lists the various configurations avail-

To identify the configuration of an analyzer,
locate the analyzer name-rating plate. The
sales matrix identifier number appears on the
analyzer name-rating plate.

able.

CLD CHEMILUMINESCENCE NO/NOx ANALYZER - CLD (ANALYZER MODULE)

Code Software Version

01 Current Version Software
02 2.2.1 Version Software
03 3X Version Software - specify version

Code Configuration Identifier(1)

A Calibrated Low Ranges: 0-10, 0-25, 0-100, 0-250 ppm
B Calibrated Low Ranges: 0-10, 0-30, 0-100, 0-300 ppm
C Calibrated Low Ranges: 0-10, 0-50, 0-100, 0-500 ppm
D Calibrated High Ranges: 0-250, 0-1000, 0-2500, 0-10000
E Calibrated High Ranges: 0-300, 0-1000, 0-3000, 0-10000 ppm
F Calibrated High Ranges: 0-500, 0-1000, 0-5000, 0-10000 ppm
G Calibrated Low Range 0-5 ppm
9 Special

Code Materials

1 Brass and Neoprene Back Pressure Regulator 5 psi
2 Brass and Neoprene Back Pressure Regulator 2 psi
3 Stainless Steel and Viton Back Pressure Regulator 5 psi
4 Stainless Steel and Viton Back Pressure Regulator 2 psi
9 Special

Code Flow Sensor

01 Standard (No Flow Sensor)
02 400 - 2000 cc/min
99 Special

Code Special Requirements

00 None
G1 Customer Option
99 Special

CLD 01 A 3 01 00 Example

Rosemount Analytical Inc. A Division of Emerson Process Management Replacement Parts 6-1

Instruction Manual

760000-C
November 2002

Model NGA2000 CLD

6-2 REPLACEMENT PARTS

658157 Air Restrictor 430 cc/min 12 psig
657473 Capillary, Pump 5 psig
660405 Capillary, Pump 2 psig
660404 Capillary, Sample 200 cc/min 2 psig
659658 Capillary, Sample 200 cc/min. 5 psig
659657 Capillary, Sample 70 cc/min. 5 psig
655520 Computer Board
655250 Converter
659754 Detector 200 cc/min.
659753 Detector 70 cc/min.
655620 Driver Board
655245 Fan (Exhaust and Intake)
903347 Fuse, Main Power 6A 250V
659494 Lamp, Ozone Generator
657719 Ozone Generator
657520 Power Supply Board
657716 Power Supply, Ozone Generator
655253 Pressure Sensor, Sample
662298 Pressure Switch
659895 PROM
660400 Regulator, Brass/Neoprene 2 psig
655269 Regulator, Brass/Neoprene 7 psig
660401 Regulator, SS/Viton 2 psig
659063 Regulator, SS/Viton 5 psig
902931 Sensor, Flow
655254 Sensor, Ozone Pressure
655580 Signal Board
655263 Solenoid Valve, NO/NOx
657298
655264 Transistor Assembly
903207 Valve, Flow Balance

Thermostat 80°C

655250 Converter Replacement Parts

655228 Heater Jacket
655227 Tube, Aged
655282 Sensor, Temperature

659753, 659754 Detector Replacement
Parts

655235 Heater/Thermostat Assembly
655216 Thermistor
655258 Photodiode
854540 O-Ring, Viton .739ID .875OD
876478 O-Ring, Viton .737ID .943OD

6-2 Return of Material Rosemount Analytical Inc. A Division of Emerson Process Management

Model NGA 2000 TO2

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 equip-

ment 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

SECTION 7

7-2 CUSTOMER SERVICE

7-3 TRAINING

Instruction Manual

760000-C

November 2002

If warranty service is expected, the defective
unit will be carefully inspected and tested at
the factory. If the failure was due to the condi­tions 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.

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

A comprehensive Factory Training Program of
operator and service classes is available. For
a copy of the Current Operator and Service

Training Schedule

vices Department at:

Rosemount Analytical Inc.

Customer Service Center

contact the Technical Ser-

1-800-433-6076

Rosemount Analytical Inc. A Division of Emerson Process Management Return of Material 7-1

Instruction Manual

760000-C
November 2002

Model NGA2000 CLD

7-2 Return of Material Rosemount Analytical Inc. A Division of Emerson Process Management

Model NGA 2000 TO2

SECTION 8

A

ACKN, 3-14
Actual status, 3-30
Alarm delay, 3-14
Alarm generation, 3-14
Alarm messages valid for, 3-32
analyzer module diagnostics, 3-32
analyzer will calculate the best fit polynomial, 3-16
Applying power, 3-7
automatic measurement and flow balance

calculation, 3-34

Automatic range change control, 3-10

B

Barometric pressure compensation, 3-33
binding, 3-7
Block temp, 3-20
Brightness and Contrast, 3-11
bypass flow, 3-13

Instruction Manual

760000-C

November 2002

INDEX

installation location temperature restrictions, 2-2

power connection, 2-4
communication protocol, 3-29
Computer Board, 4-1
Contaminants, 2-4
converter operational temperatures, 3-37
Converter temp, 3-20
correction factor, 3-34
Current signal value, 3-28
Cursor Keys, 3-1
cylinder gases, 2-2

D

Date and time, 3-32
Detector Assembly, 4-3
Detector Assembly, 4-4
Detector temp, 3-20
Diagnostic menus, 3-32
DIO module, 3-31
Dow Corning 340, 4-3
Driver Board, 4-1

C

Cal failure error allowed, 3-22
calibration, 3-21

basic controls level, 3-21
expert controls level, 3-21

system, 3-21
Calibration adjustment limits, 3-22
Calibration averaging time, 3-22
calibration factors, 3-24
Calibration failure alarm, 3-22
Calibration Gas List, 3-21
Calibration Gases, 2-3
Calibration Parameters, 3-22
Calibration Results, 3-23
Calibration status, 3-20
Calibration time out, 3-22
capillaries, 3-40
cause of converter failure, 3-40
change the alarm limits, 3-13
chemiluminescence method of detection, 1-1
choose signal, 3-27
Choose signal, 3-30
choose source module, 3-30
choose the analyzer module, 3-27
CLD Analyzer Module

Installation into Platform, 2-1

E

efficiency of the NO2-to-NO converter, 3-38
EG&G Wakefield Engineering's Series 120 Thermal

Joint Compound, 4-3
Enable Security Code, 3-36
Enter Key, 3-1
Entering a level locked by security code, 3-36

F

fan screen, 4-1
Flash-EPROM, 3-35
Function Keys, 3-1

Back, 3-2

BasicCal, 3-2

Channel, 3-2

Display, 3-2

ESCAPE, 3-2

FACTORS, 3-24

HISTORY, 3-25

HOME, 3-2

INFO, 3-2

Lock, 3-2

Main, 3-2

Measure, 3-2

MFG Data, 3-2

Rosemount Analytical Inc. A Division of Emerson Process Management Index 8-1

Instruction Manual

760000-C
November 2002

Model NGA2000 CLD

More, 3-2
NEXT, 3-24
RSTR MN, 3-25
RSTR ST, 3-25
Status, 3-2
STORE, 3-24

Function Line, 3-2

G

Gas measurement, 3-18

H

Health, 3-20
heater, 4-1, 4-3
heater jacket, 4-1
hold output during calibration, 3-28
hysteresis level, 3-17

I

I/O Module

installation, 2-1
Inlet/Outlet fittings, 2-2
Interference, 3-20
invert signal, 3-30

L

LCD brightness and contrast, 3-7
Leak Test, 2-4
linear polynomials, 3-14
linearization curve must be monotonic, 3-16
Linearizer, 3-20
Load configuration data from serial interface, 3-34
Loading/saving configuration parameters, 3-32
LON update rate, 3-17

M

main power fuse, 4-1
Maximum permissible interval between calibrations,

3-7
measured conversion efficiency, 3-39
Measurement mode, 3-20
Measurement range number, 3-10, 3-12
Menu Line, 3-1
Midpoint Correction Set Up, 3-16
Monotonic, 3-16

N

NO/NOx, 3-20
NO/NOx flow balance, 3-34
Noise level, 3-20

O

operation mode, 3-28

adjust 0V, 3-28
adjust 10V, 3-28

normal, 3-28
Operational state, 3-20
output current, 3-28
output delay time, 3-17, 3-20
output number, 3-30
Output number, 3-28
output(s) value on analyzer failure, 3-28
Ozonator, 3-20
Ozonator Power, 3-10
Ozonator Source Gas, 2-3

P

photodiode, 1-1, 3-20, 4-4
PIN, 3-35
point to be measured, 3-16
power failure, 3-1
Power Supply Board, 4-1
Power Supply Board main power fuse, 4-1
Power supply voltages, 3-33
ppm to mg/Nm3 conversion factor:, 3-18
Pressure, 2-3
Pressure measurement, 3-18
Primary variable parameters, 3-33

R

Range and functional control, 3-12
Raw signal, 3-20
Reaction Chamber, 4-3, 4-4
Replace current configuration with factory settings,

3-35
response time, 3-17
Return Authorization, 7-2

S

Sample, 2-3

maximum flow, 2-3
sample contaminates, 4-1
Sample flow, 3-20
Sample line tubing type, 2-2
Sample press, 3-20
security codes, 3-32
Security codes

enabled, 3-36

lost or forgotten, 3-35
select analog output number, 3-26
Send configuration to serial interface, 3-34
serial interface options, 3-29
Set up a new date or time, 3-35

8-2 Index Rosemount Analytical Inc. A Division of Emerson Process Management

Model NGA 2000 TO2

Instruction Manual

760000-C

November 2002

Setting the code numbers, 3-35
shipping damage, 2-1
Signal Board, 4-1, 4-3
Signal comes from, 3-30
Signal name, 3-28, 3-30
signal value for 0% (100%) output, 3-27
SIO module, 3-26
SNOOP, 5-1
Source module, 3-28
Span gas concentration, 3-10
special scaling for concentration signal, 3-28
subnormal efficiency, 3-40
Switch automatically to, 3-11
Switch off backlight, 3-11
System calibration, 3-32
System reset, 3-32

T

t90 time, 3-17, 3-20
Tag Line, 3-2

TEA Scrubber, 3-40
temperature control PID algorithms, 3-33
Temperature measurement, 3-18
Text Line, 3-2
thermistor, 4-4

V

Validity, 3-20
Variable Line, 3-2
vitreous carbon converter, 3-37

reduced efficiency, 3-37

W

warm-up period, 3-7
warning alarms for the temperatures, 3-33

Z

Zero (Span) ranges, 3-22

Rosemount Analytical Inc. A Division of Emerson Process Management Index 8-3

Instruction Manual

760000-C
November 2002

Model NGA2000 CLD

8-4 Index Rosemount Analytical Inc. A Division of Emerson Process Management

Model NGA2000 CLD

MATRIX POSITION 12, VALUE “G”

1.0 OVERVIEW

The following special modifications to your
standard CLD Analyzer (PN 194005) are
made as specified by the “G” designator cho­sen for the 12
and supercedes the information supplied in
this manual.

2.0 SPECIFICATIONS

Range: 10, 50, 300 PPM
Noise: 1% Range
T90 Response: 1-2 sec.
Sample Flow: 3 L/min.
Sample Pressure: 2 psig
Conformity: Non-Linear

3.0 PHYSICAL MODIFICATIONS
Flow Sensor Removal

The flow sensor (PN 902931) has been re­moved. This does not affect the operation,
accuracy or safety of the analyzer. It means
that the bypass flow is no longer measured.
Therefore, the platform display has been
modified to show:

th

position of the product matrix

Addendum

748371-E

February 2000

ADDENDUM

Sample pressure
Block temperature
Ozonator
Converter temperature

The CLD physical parameter will now indicate
zero sample flow, and generate a validity and
warning alarm which will not be displayed and
should be disregarded.

Component Changes

The following parts have replaced the stan­dard components:

• Pump Capillary PN 660405

• Detector 200 cc/min 2 psig PN 660404

• Back Pressure Regulator 2 psig PN

660400

4.0 FLOW DIAGRAM

CLD module with value “G” in matrix position
12, Figure 1-1 Flow Diagram is replaced with
Figure 1-1 on this addendum.

http://www.processanalytic.com

Addendum

748371-E
February 2000

Model NGA2000 CLD

TUBING, 1/8 O.D. FLOUROCARBON

OZONE GENERATOR

CONN, GLASS

TUBE (2)

BLACK

1/8 O.D.

1/8T

BRASS

NOx/NO CONVERTER

NC NO

NOx/NO SOLENOID VALVE

PRESSURE SWITCH

4-15 psig (NO)

SENSOR, OZONE

PRESSURE 30 psig

CONN, MALE

1/8T – 3/8NPT

BRASS

RESTRICTOR, AIR

130 cc/min. @ 12 psig

CONN

1/8T – 1/8NPT

BRASS

TUBING, VITON

.116 I.D.

CONN, MALE

1/8T – 3/8NPT

BRASS

CROSS

REDUCER, BULKHEAD

1/4T – 1/8T BRASS

E AIR

Unless otherwise specified all tubing is 1/8 O.D. teflon.

OZONE

CHAMBER

REACTION

DETECTOR

UNION

1/8T CRES

TEE

1/8T

KYNAR

VENT CAPILLARY

70 cc/min. 4 psig

PN 634398

TEE 1/8T KYNAR

C

METERING VALVE

.125 SWL CRES

EXHAUST

UNION

1/4T - 1/8T CRES

PUMP CAPILLARY

1/8 O.D. TEFLON

PN 657473

REDUCER

TUBING, 1/4O.D. TEFLON

ELBOW, MALE

1/4T – 1/4NPT

CRES

BACK

PRESSURE

TEE ASSEMBLY

1/8T – 1/4NPT

SAMPLE

SAMPLE CAPILLARY

70 cc/min. 5 psig PN 659657

TUBING 1 / 4 O.D. TEFLON

REDUCER

1/4T - 1/8T

CRES

1/8T - 1/16T CRES

SENSOR, SAMPLE

PRESSURE 15 PSIG

CROSS 1/8T

CRES

TEE

1/4T

REGULATOR

REDUCER, BULKHEAD

1/4T – 1/8T CRES

MPLE

200 cc/min. 2 psig PN 659658

CONN, MALE

CRES

BULKHEAD

1/4T CRES

1/8T-3/8NPT CRES

UST

TEE 1/8T

KYNAR

TUBING, 1/4O.D. TEFLON TUBING, 1/4O.D. TEFLON

Figure 1-1. CLD Flow Diagram – Matrix Position 12, Value “G”

Teflon® is a registered trademark of E.I. duPont de Nemours and Co., Inc.
Kynar® is a registered trademark of Pennwalt, Inc.

2 of 2 Addendum - Matrix Position 12, Value "G"

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 DE-

LAY 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

760000-C
November 2002

Model NGA2000 CLD

EMERSON PROCESS MANAGEMENT

ROSEMOUNT ANALYTICAL INC.
PROCESS ANALYTIC DIVISION

1201 N. Main St.
Orrville, OH 44667-0901
T [phone]
F [phone]
E [e-mail]

ASIA - PACIFIC
Fisher-Rosemount
Singapore Private Ltd.

1 Pandan Crescent
Singapore 128461
Republic of Singapore
T 65-777-8211
F 65-777-0947

http://www.processanalytic.com

© Rosemount Analytical Inc. 2002

EUROPEAN TECHNOLOGY CENTER
Fisher-Rosemount GmbH & Co.

Industriestrasse 1
63594 Hasselroth
Germany
T 49-6055-884 0
F 49-6055-884209

EUROPE, MIDDLE EAST, AFRICA
Fisher-Rosemount Ltd.

Heath Place
Bognor Regis
West Sussex PO22 9SH
England
T 44-1243-863121
F 44-1243-845354

LATIN AMERICA
Fisher - Rosemount

Av. das Americas
3333 sala 1004
Rio de Janeiro, RJ
Brazil 22631-003
T 55-21-2431-1882