Rosemount NGA 2000 NDIR Analyzer Module SW 3.3-Rev C Owner's manual

Category
Carbon monoxide (CO) detectors
Type
Owner's manual
Instruction Manual
748417-C
April 2003
http://www.processanalytic.com
Model NGA2000 NDIR
Non-Dispersive Infrared Analyzer Module
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
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
748417-C
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
Instruction Manual
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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
Instruction Manual
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April 2003
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 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
748417-C
April 2003
iv Contents Rosemount Analytical Inc. A Division of Emerson Process Management
Model NGA2000 NDIR
Instruction Manual
748417-C
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.
Instruction Manual
748417-C
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.
Instruction Manual
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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
748417-C
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.
748417 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.
FM
APPROVED
®
NRTL
/C
9
7-
C
21
9
N
96
Instruction Manual
748417-C
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.
Instruction Manual
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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
748417-C
April 2003
P-8 Preface Rosemount Analytical Inc. A Division of Emerson Process Management
Model NGA2000 NDIR
Instruction Manual
748417-C
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
Instruction Manual
748417-C
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
2
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
Instruction Manual
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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
Instruction Manual
748417-C
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
3
), carbon dioxide
(CO
2
), carbon monoxide (CO), carbon monoxide + carbon dioxide
ethylene (C
2
H
4
), hexane (C
6
H
14
), methane (CH
4
), nitric oxide (NO)
and sulfur dioxide (SO
2
)
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
2
(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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Rosemount NGA 2000 NDIR Analyzer Module SW 3.3-Rev C Owner's manual

Category
Carbon monoxide (CO) detectors
Type
Owner's manual

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