Emerson Process Management NGA2000 User manual

Brand: Emerson Process Management

Model: NGA2000

Category: Carbon monoxide (CO) detectors

Type: User manual

This manual is also suitable for

Instruction Manual

748332-F

April 2003

http://www.processanalytic.com

Model NGA2000 NDIR

Non-Dispersive Infrared Analyzer

Emerson Process Management

Rosemount Analytical Inc.

Process Analytic Division

1201 N. Main St.

Orrville, OH 44667-0901

T (330) 682-9010

F (330) 684-4434

e-mail: [email protected]

http://www.processanalytic.com

ESSENTIAL INSTRUCTIONS

READ THIS PAGE BEFORE PROCEEDING!

Rosemount Analytical designs, manufactures and tests its products to meet many national and

international standards. Because these instruments are sophisticated technical products, you MUST

properly install, use, and maintain them to ensure they continue to operate within their normal

specifications. The following instructions MUST be adhered to and integrated into your safety program

when installing, using, and maintaining Rosemount Analytical products. Failure to follow the proper

instructions may cause any one of the following situations to occur: Loss of life; personal injury; property

damage; damage to this instrument; and warranty invalidation.

• Read all instructions

prior to installing, operating, and servicing the product.

• If you do not understand any of the instructions, contact your Rosemount Analytical

representative for clarification.

• Follow all warnings, cautions, and instructions

marked on and supplied with the product.

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

the product.

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

Instruction Manual and per applicable local and national codes. Connect all products to the

proper electrical and pressure sources.

• To ensure proper performance, use qualified personnel

to install, operate, update, program, and

maintain the product.

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

by Rosemount. Unauthorized parts and procedures can affect the product’s performance, place the

safe operation of your process at risk, and VOID YOUR WARRANTY

. Look-alike substitutions may

result in fire, electrical hazards, or improper operation.

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

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

personal injury.

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

Pyrex

is a registered trademark of Corning Glass Works

Irtran

is a registered trademark of Eastman Kodak Co.

Teflon

and Viton

is a registered trademark of E.I. duPont de Nemours and Co., Inc.

Ty-Rap

is a registered trademark of Thomas & Betts Corp.

Instruction Manual

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April 2003

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

Model NGA2000 NDIR

TABLE OF CONTENTS

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

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

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

General Precautions For Handling And Storing High Pressure Gas Cylinders .................................P-4

Documentation....................................................................................................................................P-5

Compliances.......................................................................................................................................P-5

Glossary Of Terms ...........................................................................................................................P-6

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 Sample Requirements...........................................................................................................1-3

1-5 Purge Kits..............................................................................................................................1-3

1-6 Features.................................................................................................................................1-3

1-7 Specifications.........................................................................................................................1-5

a. General ...........................................................................................................................1-5

b. Physical...........................................................................................................................1-5

c. Sample............................................................................................................................1-5

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

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

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

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

2-4 Gas Specifications.................................................................................................................2-2

a. Calibration Gases............................................................................................................2-2

b. Flow Rate........................................................................................................................2-2

c. Sample Pressure/Filtration..............................................................................................2-2

d. Leak Test ........................................................................................................................2-2

2-5 Gas Connections...................................................................................................................2-2

2-6 Electrical Connections...........................................................................................................2-4

3-0 STARTUP AND OPERATION..................................................................................................................3-1

3-1 Overview................................................................................................................................3-1

3-2 Display Screens.....................................................................................................................3-1

a. Run Mode Display...........................................................................................................3-1

b. Menu Displays.................................................................................................................3-1

c. Help Displays..................................................................................................................3-1

3-3 Startup Procedure .................................................................................................................3-1

3-4 Binding...................................................................................................................................3-2

3-5 Calibration..............................................................................................................................3-4

3-6 Linearization ..........................................................................................................................3-6

3-7 Routine Operation .................................................................................................................3-8

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April 2003

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

Model NGA2000 NDIR

4-0 MAINTENANCE AND TROUBLESHOOTING.........................................................................................4-1

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

4-2 PCB Replacement.................................................................................................................4-1

4-3 Power Fuse Replacement.....................................................................................................4-2

4-4 Module Fan Replacement .....................................................................................................4-3

4-5 Chopper Motor Replacement ................................................................................................4-4

4-6 Source Replacement.............................................................................................................4-4

4-7 Detector Removal..................................................................................................................4-5

4-8 Flow Sensor Replacement ....................................................................................................4-6

4-9 Case Temperature Sensor Replacement..............................................................................4-6

4-10 Thermal Fuse Replacement..................................................................................................4-6

4-11 Oscillator Tune/Source Balance Shutter Adjustment............................................................4-6

4-12 Cleaning Cells........................................................................................................................4-8

4-13 Cell Desiccant........................................................................................................................4-10

4-14 Modulation Check..................................................................................................................4-11

5-0 REPLACEMENT PARTS..........................................................................................................................5-1

5-1 Matrix.....................................................................................................................................5-1

5-2 Replacement Parts................................................................................................................5-2

6-0 RETURN OF MATERIAL..........................................................................................................................6-1

6-1 Return Of Material.................................................................................................................6-1

6-2 Customer Service..................................................................................................................6-1

6-3 Training..................................................................................................................................6-1

7-0 APPENDIX A. MENU DISPLAYS ...........................................................................................................7-1

8-0 INDEX 8-1

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

Model NGA2000 NDIR

LIST OF ILLUSTRATIONS

Figure 1-1. NDIR Technology .................................................................................................. 1-2

Figure 1-2. NGA2000 NDIR Analyzer Module (Typical - Actual Configuration May Vary)...... 1-4

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

Figure 2-2. NDIR Back Panel................................................................................................... 2-3

Figure 2-3. NDIR Front Panel Electrical Connections.............................................................. 2-4

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

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

Figure 3-1. Run Mode Display ................................................................................................. 3-2

Figure 3-2. Main Menu Display ................................................................................................ 3-2

Figure 3-3. Basic Controls Menu.............................................................................................. 3-3

Figure 3-4. Expert Controls and Setup Menu........................................................................... 3-3

Figure 3-5. Technical Level Configuration Menu..................................................................... 3-3

Figure 3-6. Typical Help Screen............................................................................................... 3-4

Figure 3-7. Typical Linearization Curve, Linearizer OFF......................................................... 3-7

Figure 3-8. Operator-Determined Linearization Curve (Normalized)....................................... 3-7

Figure 3-9. Display Screens (1 of 5) ........................................................................................ 3-9

Figure 3-10. Display Screens (2 of 5) ...................................................................................... 3-10

Figure 3-11. Display Screens (3 of 5) ...................................................................................... 3-11

Figure 3-12. Display Screens (4 of 5) ...................................................................................... 3-12

Figure 3-13. Display Screens (5 of 5) ...................................................................................... 3-13

Figure 4-1. Printed Circuit Board Fold-Out Panel Views.......................................................... 4-2

Figure 4-2. Power Fuse Location............................................................................................. 4-2

Figure 4-3. Fan Assembly........................................................................................................ 4-3

Figure 4-4. Motor/Source Assembly......................................................................................... 4-4

Figure 4-5. Cell, PCB Assembly – Exploded View................................................................... 4-5

Figure 4-6. Oscillator Tune, Source Balance Shutter Adjustments ......................................... 4-7

Figure 4-7. Detector Block (Exploded View)............................................................................ 4-7

Figure 4-8. Cell Assembly........................................................................................................ 4-9

LIST OF TABLES

Table 2-1. Cell Purging Times at Atmospheric Sample Pressure .......................................... 2-3

Table 3-1. NDIR Analyzer Module Alarms.............................................................................. 3-5

Table 4-1. Cell Desiccant...................................................................................................... 4-10

Instruction Manual

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April 2003

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

Model NGA2000 NDIR

Instruction Manual

748332-F

April 2003

Rosemount Analytical Inc. A Division of Emerson Process Management Preface P-1

Model NGA2000 NDIR

PREFACE

The purpose of this manual is to provide information concerning the components, functions,

installation and maintenance of the NGA2000 NDIR and the System Accessories of the NGA2000

System.

Some sections may describe equipment not used in your configuration. The user should become

thoroughly familiar with the operation of this module before operating it. Read this instruction

manual completely.

DEFINITIONS

The following definitions apply to DANGERS, WARNINGS, CAUTIONS and NOTES found throughout

this publication.

DANGER .

Highlights the presence of a hazard which will cause severe personal injury, death, or substantial

property damage if the warning is ignored.

WARNING .

Highlights an operation or maintenance procedure, practice, condition, statement, etc. If not

strictly observed, could result in injury, death, or long-term health hazards of personnel.

CAUTION

Highlights an operation or maintenance procedure, practice, condition, statement, etc. If not

strictly observed, could result in damage to or destruction of equipment, or loss of effectiveness.

NOTE

Highlights an essential operating procedure,

condition or statement.

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April 2003

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

Model NGA2000 NDIR

SAFETY SUMMARY

If this equipment is used in a manner not specified in these instructions, protective systems may be

impaired.

AUTHORIZED PERSONNEL

To avoid explosion, loss of life, personal injury and damage to this equipment and on-site property,

all personnel authorized to install, operate and service the this equipment should be thoroughly

familiar with and strictly follow the instructions in this manual. SAVE THESE INSTRUCTIONS.

DANGER.

ELECTRICAL SHOCK HAZARD

Do not operate without doors and covers secure. Servicing requires access to live parts which can

cause death or serious injury. Refer servicing to qualified personnel. For safety and proper

performance this instrument must be connected to a properly grounded three-wire source of power.

WARNING .

POSSIBLE EXPLOSION HAZARD

This equipment is not designed for and should not be used in the analysis of flammable samples.

Use of this equipment in this way could result in explosion and death.

Ensure that all gas connectors are made as labeled and are leak free. Improper gas connections

could result in explosion or death.

WARNING.

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 over-

voltage spiking and resultant fuse blowing when powering up the instrument.

CAUTION

PRESSURIZED GAS

This module requires periodic calibration with a known standard gas. See General Precautions for

Handling and Storing High Pressure Gas Cylinders on page P-4.

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April 2003

Rosemount Analytical Inc. A Division of Emerson Process Management Preface P-3

Model NGA2000 NDIR

CAUTION

HAND INJURY HAZARD

Dropping the front panel of the Platform while hand or fingers are inside either case handle can

cause serious injury.

CAUTION

PARTS INTEGRITY

Tampering with or unauthorized substitution of components may adversely affect safety of this

product. Use only factory approved components for repair.

CAUTION

OVERBALANCE HAZARD

This Analyzer Module may tip instrument over if it is pulled out too far and the Platform is not

properly supported.

CAUTION

POSSIBLE CELL DAMAGE

Apply leak test liquid to cell or detectors only as a last resort.

NOTICE

Software compatibility is necessary for all NGA2000 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 NGA2000 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.

Instruction Manual

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April 2003

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

Model NGA2000 NDIR

GENERAL PRECAUTIONS FOR HANDLING AND STORING HIGH

PRESSURE GAS CYLINDERS

Edited from selected paragraphs of the Compressed Gas Association's "Handbook of Compressed

Gases" published in 1981

Compressed Gas Association

1235 Jefferson Davis Highway

Arlington, Virginia 22202

Used by Permission

1. Never drop cylinders or permit them to strike each other violently.

2. Cylinders may be stored in the open, but in such cases, should be protected against extremes of

weather and, to prevent rusting, from the dampness of the ground. Cylinders should be stored in

the shade when located in areas where extreme temperatures are prevalent.

3. The valve protection cap should be left on each cylinder until it has been secured against a wall or

bench, or placed in a cylinder stand, and is ready to be used.

4. Avoid dragging, rolling, or sliding cylinders, even for a short distance; they should be moved by

using a suitable hand-truck.

5. Never tamper with safety devices in valves or cylinders.

6. Do not store full and empty cylinders together. Serious suckback can occur when an empty cylinder

is attached to a pressurized system.

7. No part of cylinder should be subjected to a temperature higher than 125

F (52

C). A flame should

never be permitted to come in contact with any part of a compressed gas cylinder.

8. Do not place cylinders where they may become part of an electric circuit. When electric arc

welding, precautions must be taken to prevent striking an arc against the cylinder.

Instruction Manual

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April 2003

Rosemount Analytical Inc. A Division of Emerson Process Management Preface P-5

Model NGA2000 NDIR

NAMUR

DOCUMENTATION

The following NGA2000 NDIR instruction materials are available. Contact Customer Service Center or

the local representative to order.

748332 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.

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.

APPROVED

NRTL /C

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April 2003

P-6 Preface Rosemount Analytical Inc. A Division of Emerson Process Management

Model NGA2000 NDIR

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 NGA2000 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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April 2003

Rosemount Analytical Inc. A Division of Emerson Process Management Preface P-7

Model NGA2000 NDIR

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).

Instruction Manual

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April 2003

P-8 Preface Rosemount Analytical Inc. A Division of Emerson Process Management

Model NGA2000 NDIR

Instruction Manual

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April 2003

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

Model NGA2000 NDIR

SECTION 1

DESCRIPTION AND SPECIFICATIONS

1-1 OVERVIEW

This manual describes the Non-Dispersive

Infrared (NDIR) Analyzer Module of Rosemount

Analytical's NGA2000 Series of gas analysis

components.

The NDIR Analyzer Module is designed to

continuously determine the concentration of

oxygen in a flowing gaseous mixture. The

concentration is expressed in one of three

fashions:

• parts-per-million

• percent of composition

• percent of fullscale

The user can obtain an output that is linear with

concentration by initiating a linearizer, which is

based on a fourth-order polynomial. The

linearizer is incorporated in the Analyzer

Module's electronic circuitry and is adjustable

through interconnection with the network.

The entire 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 NDIR Analyzer Module is designed to cover

a wide range of process, stack and automotive

applications. Typical measurements include:

Chemical and Petroleum

• Carbon dioxide: Manufacture of ethylene

oxide, phthalic anhydride and ammonia;

nitrogen generation; and producer gas

monitoring

• Carbon Monoxide: Stack monitoring

• Methane: Ammonia manufacture

• Acetylene: Manufacture of acetylene,

acrylonitrile, and vinyl chloride

• Sulfur Dioxide: Sulfuric acid stack gas

Food and Agriculture

• Carbon Dioxide and Water Vapor:

Blanketing of perishables, fermentation

processes, photosynthesis studies,

personnel protection

Aerospace and Oceanography

• Carbon Dioxide, Carbon Monoxide, and

Water Vapor: Diving and space chambers

Metals and Ceramics

• Carbon Dioxide: Monitoring of producer

gas, steel converting, manufacture of

cement, soaking pit, heat treating

• Carbon Monoxide: Inert gas generation,

producer gas monitoring, rotary kiln

roasting, tin plate annealing, steel

converting, aluminum power processing,

porcelain kilns, tunnels

• Water Vapor: Heat treating, hydrogen

brazing, nickel and chrome plating

• Sulfur Dioxide: Flash smelting

• Ammonia: Ammonia dissociation

1-3 THEORY OF TECHNOLOGY

Inside of the Analyzer Module, two equal-energy

infrared beams are directed through two parallel

optical cells, a flow-through sample cell and a

reference cell. The reference cell may be

sealed or may contain a continuously flowing

reference gas. (See Figure 1-1 below.)

The infrared radiation is interrupted by a

chopper at a frequency of 5 Hz.

Instruction Manual

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April 2003

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

Model NGA2000 NDIR

During analysis, a portion of the infrared

radiation is absorbed by the component of

interest in the sample. The quantity of infrared

radiation that is absorbed is proportional to the

component concentration.

The detector is a "gas microphone" based on

the Luft principle. The detector is generally

filled with the same gas being analyzed. The

infrared energy is therefore absorbed at the

same wavelengths in the detector as that in the

sample cell, making the detector specific for the

analyzed component. The detector converts the

difference in energy between sample and

reference cells to a capacitance change. This

change, which is proportional to component

concentration, is processed and expressed as

the primary variable on the network.

Other modules comprising the NGA2000 unit

then use this variable for a variety of purposes

(e.g., expressing the gas concentration on the

Front Panel Display or sending it to external

data acquisition devices).

For a general understanding of the electrical

interconnections in the NDIR Analyzer Module,

see Figure 2-4 on page 2-5.

Figure 1-1. NDIR Technology

SAMPLE IN

SAMPLE OUT

COMPONENT OF INTEREST

NON-INTERFERING COMPOUNDS

INFRARED

SOURCE

DETECTOR

REFERENCE

CELL

STATIONARY

PLATE

CHOPPER

SAMPLE

CELL

DIAPHRAGM,

DISTENDED

DIAPHRAGM,

DARK STATE

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April 2003

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

Model NGA2000 NDIR

1-4 SAMPLE REQUIREMENTS

Maximum allowable sample pressure is 690

hPa-gauge (10 psig) for a standard

configuration NDIR that has a flow restrictor

which sets the flow at between 0.5 L/min. to 1

L/min. Special high pressure cells (up to 10,350

hPa-gauge, 150 psig) are available. Sample

temperature range is 0°C to 55°C, and

maximum dewpoint is 40°C. The sample must

be filtered to exclude particulates larger than 2

microns in size. Consult factory for special

configurations with specifications outside of

those listed above.

1-5 PURGE KITS

A purge kit for the motor source or motor

source/flowing reference cell accompanies

some NDIR modules. The purpose of these kits

is to improve performance and accuracy

through the reduction of ambient CO

interference. They do not provide protection

from explosion hazard. The purge gas vents

into the case, which has no outlet fitting for

these types of purge gases.

1-6 FEATURES

Among the features available in the NDIR

Analyzer Module are:

• Pressure compensation for barometric

fluctuations (optional)

• Flow sensing

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April 2003

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

Model NGA2000 NDIR

Figure 1-2. NGA2000 NDIR Analyzer Module (Typical - Actual Configuration May Vary)

CASE

TEMPERATURE

SENSOR

REFERENCE OUT

REFERENCE IN

PURGE GAS IN

CHOPPER MOTOR

SOURCE

CELLS

DETECTOR

THERMAL FUSE

DETECTOR COVER

SHUTTER ADJUST

ACCESS HOLES

OSCILLATOR

TUNE ADJUST

NETWORK INPUT

MODULE

OSCILLATOR

BOARD

SIGNAL BOARD

DETECTOR

TEMPERATURE

CONTROL RTD

MICRO BOARD

FLOW SENSOR

PRESSURE

COMPENSATION

BOARD

(

OPTION

)

SAMPLE IN

SAMPLE OUT

(BOTTOM)

FAN

POWER SUPPLY

BOARD

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April 2003

Rosemount Analytical Inc. A Division of Emerson Process Management Description and Specifications 1-5

Model NGA2000 NDIR

1-7 SPECIFICATIONS

a. General

Measurement Species:.................. Heteroatomic gases such as ammonia (NH

), carbon dioxide

(CO

), carbon monoxide (CO), carbon monoxide + carbon dioxide

ethylene (C

), hexane (C

), methane (CH

), nitric oxide (NO)

and sulfur dioxide (SO

)

Ranges:......................................... 10 ppm fullscale to 100% fullscale (application-dependent); 4

fullscale selections, including suppressed zero ranges

Repeatability:................................. ±1% of fullscale (at constant temperature)

Minimum Detectable Level:........... 0.1% CO

(at 1 atm. sample pressure; application dependent)

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

Linearity:........................................ ±1% of fullscale with 4th order polynomial

Response Time: ............................ .05 to 30 seconds (selectable) for 0 to 90% of fullscale

Drift (Zero and Span):.................... <±1% of fullscale/24 hours at constant temperature (application

dependent);

<±2% of fullscale/week at constant temperature (application

dependent)

Effect of Temperature:................... <±1% of fullscale over any 10°C interval for rate of change no

greater than 10°C per hour (application dependent)

Environment: ................................. Location - Class B controlled, indoor, non-hazardous

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

Effect of Flow:................................ <1% of range when sample flow rate is changed by ≤250 ml/min.

(No effect if flow rate is between 0 and 500 ml/min.)

Power Requirements:.................... 24 VDC ±5%, 100 W max.; ripple and noise: <100 mV peak-to-

peak; line and load regulations: <±1%

b. Physical

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

Dimensions:................................... See Outline and Mounting Dimensions, Figure 2-5 on page 2-6

Weight: .......................................... Standard: 11 kg (24.2 lbs.); extended: 12.5 kg (27.5 lbs.)

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

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

c. Sample

Temperature:................................. Non-flammable 0°C to 55°C (32°F to 138°F)

Flow Rate: ..................................... 500 to 1400 ml/min.

Pressure:....................................... Maximum 690 hPa-gauge (10 psig), higher pressure in pressurized

cell applications

Particulates:................................... filtered to <2 microns

Dewpoint:....................................... <40°C (104°F), no entrained liquid

Materials in Contact with Sample:. Gold plated Pyrex, sapphire, quartz, Irtran, FEP Teflon, Viton-A,

316 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).

Instruction Manual

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April 2003

1-6 Description and Specifications Rosemount Analytical Inc. A Division of Emerson Process Management

Model NGA2000 NDIR

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