Rosemount Analytical NGA 2000 Manuale utente
NGA 2000
NON-DISPERSIVE INFRARED
ANALYZER MODULE
Rosemount Analytical
NOTICE
THE INFORMATION CONTAINED IN THIS DOCUMENT IS SUBJECT TO CHANGE WITHOUT NOTICE.
Manual Part Number 748332-D
June 1997
Printed in U.S.A.
Rosemount Analytical Inc.
4125 East La Palma Avenue
Anaheim, California 92807-1802
Pyrex® is a registered trademark of Corning Glass Works
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CONTENTS
748332-D Rosemount Analytical June 1997 i
NGA Non-Dispersive Infrared Analyzer
PREFACE
PURPOSE/SAFETY SUMMARY........................................................................P-1
GLOSSARY ......................................................................................................P-4
SPECIFICATIONS..............................................................................................P-6
CUSTOMER SERVICE, TECHNICAL ASSISTANCE AND FIELD SERVICE....P-8
RETURNING PARTS TO THE FACTORY .........................................................P-8
TRAINING ......................................................................................................P-8
DOCUMENTATION............................................................................................P-8
COMPLIANCES..................................................................................................P-9
SECTION 1. INTRODUCTION
1.1 OVERVIEW ...............................................................................................1-1
1.2 TYPICAL APPLICATIONS.........................................................................1-1
1.3 THEORY OF TECHNOLOGY....................................................................1-2
1.4 SAMPLE REQUIREMENTS ......................................................................1-4
1-5 PURGE KITS.............................................................................................1-5
1.6 FEATURES................................................................................................1-5
SECTION 2. INSTALLATION
2.1 UNPACKING..............................................................................................2-1
2.2 ASSEMBLY................................................................................................2-1
2.3 LOCATION ................................................................................................2-2
2.4 GASES ......................................................................................................2-2
2.4.1 Specifications...............................................................................2-2
2.4.2 Connections.................................................................................2-3
2.5 ELECTRICAL CONNECTIONS .................................................................2-5
CONTENTS
ii June 1997 Rosemount Analytical 748332-DNGA Non-Dispersive Infrared Analyzer
SECTION 3. STARTUP AND OPERATION
3.1 OVERVIEW...............................................................................................3-1
3.2 DISPLAY SCREENS.................................................................................3-1
3.2.1 RUN MODE DISPLAY............................................................................3-1
3.2.2 Menu Displays.............................................................................3-1
3.2.3 Help Displays...............................................................................3-2
3.3 STARTUP PROCEDURE..........................................................................3-2
3.4 BINDING ...................................................................................................3-5
3.5 CALIBRATION ..........................................................................................3-5
3.6 LINEARIZATION.......................................................................................3-8
3.7 ROUTINE OPERATION............................................................................3-9
SECTION 4. MAINTENANCE AND TROUBLESHOOTING
4.1 OVERVIEW...............................................................................................4-1
4.2 PCB REPLACEMENT...............................................................................4-2
4.3 POWER FUSE REPLACEMENT..............................................................4-2
4.4 MODULE FAN REPLACEMENT...............................................................4-2
4.5 CHOPPER MOTOR REPLACEMENT ......................................................4-3
4.6 SOURCE REPLACEMENT.......................................................................4-3
4.7 DETECTOR REMOVAL............................................................................4-3
4.8 FLOW SENSOR REPLACEMENT............................................................4-3
4.9 CASE TEMPERATURE SENSOR REPLACEMENT ................................4-4
4.10 THERMAL FUSE REPLACEMENT...........................................................4-4
4.11 OSCILLATOR TUNE/SOURCE BALANCE SHUTTER ADJUSTMENT....4-4
4-12 CLEANING CELLS ...................................................................................4-8
4-13 CELL DESICCANT ...................................................................................4-10
4.14 MODULATION CHECK.............................................................................4-10
SECTION 5. REPLACEMENT PARTS
5.1 REPLACEMENT PARTS ..........................................................................5-1
APPENDIX A. IDENTIFICATION MATRIX
CONTENTS
748332-D Rosemount Analytical June 1997 iii
NGA Non-Dispersive Infrared Analyzer
INFRARED ANALYZER DATA SHEET
GENERAL PRECAUTIONS FOR HANDLING & STORING HIGH PRESSURE CYLINDERS
WARRANTY
FIELD SERVICE AND REPAIR FACILITIES
FIGURES
1-1 NGA 2000 NDIR Analyzer Module (Typical - Actual configuration May
Vary)..............................................................................................1-3
1-2 NDIR Technology ......................................................................................1-4
2-1 Analyzer Module Installation Into Instrument Platform...............................2-1
2-2 Outline and Mounting Dimensions.............................................................2-4
2-3 NDIR Back Panel.......................................................................................2-5
2-4 NDIR Front Panel Electrical Connections..................................................2-5
2-5 NDIR Wiring Diagram................................................................................2-6
3-1 Run Mode Display .....................................................................................3-3
3-2 Main Menu Display....................................................................................3-3
3-3 Basic Controls Menu..................................................................................3-3
3-4 Expert Controls and Setup Menu...............................................................3-4
3-5 Technical Level Configuration Menu .........................................................3-4
3-6 Typical Help Screen...................................................................................3-4
3-7 Typical Linearization Curve, Linearizer OFF..............................................3-7
3-8 Operator-Determined Linearization Curve (Normalized)............................3-7
3-9 Display Screens (1 of 5) ............................................................................3-10
3-10 Display Screens (2 of 5) ............................................................................3-11
3-11 Display Screens (3 of 5) ............................................................................3-12
3-12 Display Screens (4 of 5) ............................................................................3-13
3-13 Display Screens (5 of 5) ............................................................................3-14
4-1 Printed Circuit Board Fold-Out Panel Views..............................................4-2
4-2 Module Fan Assembly...............................................................................4-3
4-3 Motor/Source Assembly.............................................................................4-4
4-4 Cell, PCB Assembly (Exploded View)........................................................4-6
4-5 Oscillator Tune, Source Balance Shutter Adjustments..............................4-7
4-6 Detector Block (Exploded View) ................................................................4-7
4-7 Cell Disassembly.......................................................................................4-9
TABLES
2-1. Cell Purging Times at Atmospheric Sample Pressure...............................2-2
3-1 NDIR Analyzer Module Alarms..................................................................3-6
4-1 Cell Desiccant............................................................................................4-10
CONTENTS
iv June 1997 Rosemount Analytical 748332-DNGA Non-Dispersive Infrared Analyzer
NOTES
PREFACE
748332-D Rosemount Analytical June 1997 P-1
NGA Non-Dispersive Infrared Analyzer
PURPOSE/SAFETY SUMMARY
The purpose of this manual is to provide information concerning the components,
functions, installation and maintenance of this particular NGA 2000 module.
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.
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 this
equipment should be thoroughly familiar with and strictly follow the instructions
in this manual. SAVE THESE INSTRUCTIONS.
If this equipment is used in a manner not specified in these instructions,
protective systems may be impaired.
DANGER is used to indicate the presence of a hazard which will cause severe
personal injury, death, or substantial property damage if the warning is ignored.
WARNING is used to indicate the presence of a hazard which can cause severe
personal injury, death, or substantial property damage if the warning is ignored.
CAUTION is used to indicate the presence of a hazard which will or can cause minor
personal injury or property damage if the warning is ignored.
NOTE is used to indicate installation, operation or maintenance information which is
important but not hazard-related.
Operate this equipment only when covers are secured. Servicing requires
access to live parts which can cause death or serious injury. Refer servicing to
qualified personnel.
For safety and proper performance, this module must be connected to a
properly grounded three-wire source of electrical power.
WARNING: ELECTRICAL SHOCK HAZARD
PREFACE
P-2 June 1997 Rosemount Analytical 748332-DNGA Non-Dispersive Infrared Analyzer
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.
This module requires periodic calibration with a known standard gas. See
General Precautions for Handling and Storing High Pressure Gas Cylinders at
the rear of this manual.
Dropping the front panel of the Platform while hand or fingers are inside either
case handle can cause serious injury.
CAUTION: HAND INJURY HAZARD
CAUTION: PRESSURIZED GAS
WARNING: POSSIBLE EXPLOSION HAZARD
WARNING: POSSIBLE EXPLOSION HAZARD
PREFACE
748332-D Rosemount Analytical June 1997 P-3
NGA Non-Dispersive Infrared Analyzer
Tampering with or unauthorized substitution of components may adversely
affect safety of this product. Use only factory approved components for repair.
This Analyzer Module may tip instrument over if it is pulled out too far and the
Platform is not properly supported.
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.
Note
Apply leak test liquid to cell or detectors only as a last resort.
CAUTION: PARTS INTEGRITY
CAUTION: OVERBALANCE HAZARD
WARNING: OVER-VOLTAGE SPIKING
PREFACE
P-4 June 1997 Rosemount Analytical 748332-DNGA Non-Dispersive Infrared Analyzer
GLOSSARY
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.
Indice
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