Rosemount Analytical 880A User manual

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Rosemount Analytical
MODEL 880A
NON-DISPERSIVE INFRARED
ANALYZER
INSTRUCTION MANUAL
748250-L
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NOTICE
The information contained in this document is subject to change without notice.
This manual is based on the production version of the Model 880A Non-Dispersive Infrared Analyzer.
Hardware and/or software changes may have occurred since this printing.
Manual Part Number 748250-L
October 1999
Printed in U.S.A.
Rosemount Analytical Inc.
4125 East La Palma Avenue
Anaheim, California 92807-1802
Teflon® and Viton® are registered trademarks of E.I. duPont de Nemours and Co., Inc.
SNOOP® is a registered trademark of NUPRO Co.
Irtran™ is a trademark of Eastman Kodak Co.
Pyrex® is a registered trademark of Corning Glass Works.
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CONTENTS
748250-L Rosemount Analytical October 1999 ii
}
Model 880A Non-Dispersive Infrared Analyzer
PREFACE
SAFETY SUMMARY...........................................................................................P-1
SPECIFICATIONS..............................................................................................P-3
OPTIONS SPECIFICATIONS.............................................................................P-4
CUSTOMER SERVICE, TECHNICAL ASSISTANCE AND FIELD SERVICE....P-5
RETURNING PARTS TO THE FACTORY .........................................................P-5
TRAINING ......................................................................................................P-5
DOCUMENTATION............................................................................................P-5
COMPLIANCES..................................................................................................P-6
SECTION 1. INTRODUCTION
1.1 GENERAL DESCRIPTION.......................................................................1-1
1.2 AVAILABLE OPTIONS .............................................................................1-2
SECTION 2. UNPACKING AND INSTALLATION
2.1 UNPACKING.............................................................................................2-1
2.2 LOCATION ...............................................................................................2-1
2.3 VOLTAGE REQUIREMENTS...................................................................2-1
2.4 ELECTRICAL CONNECTIONS ................................................................2-2
2.4.1 Line Power Connections .............................................................2-2
2.4.2 Recorder Connections ................................................................2-3
2.5 SAMPLE INLET/OUTLET CONNECTIONS .............................................2-4
2.6 CALIBRATION GAS REQUIREMENTS....................................................2-4
2.7 SAMPLE HANDLING SYSTEM................................................................2-4
2.8 LEAK TEST PROCEDURE.......................................................................2-5
2.9 SAMPLE FLOW RATE.............................................................................2-6
2.10 OPTION BOARDS....................................................................................2-7
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CONTENTS
ii October 1999 Rosemount Analytical 748250-LModel 880A Non-Dispersive Infrared Analyzer
SECTION 2. (CONTINUED)
2.10.1 Alarm Connections...................................................................2-8
2.10.2 Current Output Connections.....................................................2-8
2.10.3 Calibration Gas Control Connections .......................................2-8
2.10.4 Auto Zero/Span Connections ...................................................2-9
2.10.5 Remote Input/Output Connections...........................................2-9
2.11 ORDERING OPTION KITS ......................................................................2-11
2.12 MOTOR SOURCE/REFERENCE CELL PURGE KITS............................2-11
SECTION 3. INITIAL STARTUP AND CALIBRATION
3.1 LEAK TEST..............................................................................................3-1
3.2 POWER VERIFICATION .........................................................................3-1
3.3 FRONT PANEL INDICATORS AND CONTROLS....................................3-2
3.3.1 Display ......................................................................................3-2
3.3.2 Function Keys.............................................................................3-2
3.3.3 User Programmable Keys...........................................................3-4
3.3.4 Run Mode Display ......................................................................3-5
3.3.5 General Display Information.......................................................3-5
3.4 ACCESSING MODE DISPLAYS..............................................................3-6
3.5 SECURITY CODE ...................................................................................3-6
3.6 RANGE PARAMETERS...........................................................................3-8
3.6.1 Range Selection.........................................................................3-8
3.6.2 Component of Interest................................................................3-9
3.6.3 Gain ......................................................................................3-9
3.6.4 Range, Fullscale.........................................................................3-9
3.6.5 Calibration Gas...........................................................................3-10
3.6.6 Zero Offset..................................................................................3-10
3.6.7 Time Constant............................................................................3-10
3.7 ANALYZER DIAGNOSTICS.....................................................................3-10
3.8 ZERO CALIBRATION ..............................................................................3-11
3.9 SPAN CALIBRATION...............................................................................3-11
3.10 LINEARIZATION......................................................................................3-12
3.10.1 All Range....................................................................................3-13
3.10.2 Non-Standard Ranges and Coefficients.....................................3-14
3.11 ALARM.....................................................................................................3-16
3.11.1 STATUS Display........................................................................3-17
3.12 CURRENT OUTPUT................................................................................3-18
3.13 ZERO/SPAN CALIBRATION WITH CALIBRATION GAS CONTROL .....3-18
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CONTENTS
748250-L Rosemount Analytical October 1999 iii
Model 880A Non-Dispersive Infrared Analyzer
SECTION 3. (CONTINUED)
3.14 AUTO ZERO/SPAN..................................................................................3-19
3.15 REMOTE RANGE INPUT/OUTPUT .........................................................3-22
SECTION 4. ROUTINE OPERATION AND THEORY
4.1 ROUTINE OPERATION............................................................................4-1
4.2 RECOMMENDED CALIBRATION FREQUENCY.....................................4-1
4.3 SHUTDOWN.............................................................................................4-1
4.4 DETECTION SYSTEM THEORY .............................................................4-1
SECTION 5. TROUBLESHOOTING
5.1 ERROR CODE SUMMARY ......................................................................5-1
5.2 VOLTAGE CHECKS.................................................................................5-3
5.3 OSCILLATOR TUNE ADJUSTMENT .......................................................5-3
5.4 PREAMP GAIN.........................................................................................5-3
5.5 DIGITAL GAIN ADJUSTMENT.................................................................5-4
5.6 SOURCE BALANCE ADJUST..................................................................5-4
5.7 SOURCE ALIGNMENT.............................................................................5-6
5.8 SOURCE CURRENT ADJUSTMENT.......................................................5-6
5.9 CASE HEATER TEMPERATURE CONTROL..........................................5-6
5.10 ERL ERROR MESSAGE..........................................................................5-7
SECTION 6. ROUTINE SERVICING
6.1 CELL REMOVAL, CLEANING AND INSTALLATION...............................6-1
6.1.1 Long Cell Configurations.............................................................6-1
6.1.2 Short Cell Configurations............................................................6-2
6.2 CELL DESICCANT...................................................................................6-4
6.3 SOURCE REPLACEMENT.......................................................................6-4
6.4 SOURCE BALANCE SHUTTER ADJUSTMENT......................................6-4
6.5 CHOPPER MOTOR ASSEMBLY..............................................................6-5
6.5.1 Long Cell Configurations.............................................................6-5
6.5.2 Short Cell Configurations............................................................6-5
6.6 MICRO BOARD REPLACEMENT ............................................................6-6
6.7 DETECTOR REPLACEMENT ..................................................................6-6
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CONTENTS
iv October 1999 Rosemount Analytical 748250-LModel 880A Non-Dispersive Infrared Analyzer
SECTION 6. (CONTINUED)
6.7.1 Removal - Long Cell Configurations...........................................6-6
6.7.2 Removal - Short Cell Configurations ..........................................6-7
6.7.3 Detector Installation....................................................................6-7
6.8 ELECTRONIC CIRCUITRY......................................................................6-9
6.8.1 Oscillator Circuit Board and Associated Elements of Amplitude
Modulation Circuit.........................................................6-9
6.8.2 Functioning of Modulation System in TUNE Mode.....................6-9
6.8.3 Functioning of Modulation System in Operating Mode...............6-9
6.8.4 Radio Frequency Demodulator...................................................6-10
6.8.5 Signal Board...............................................................................6-10
6.8.6 Power Supply Board...................................................................6-10
6.8.7 Adapter Board ............................................................................6-11
6.8.8 Micro Board................................................................................6-11
6.8.9 Case Heater Temperature Control Board...................................6-11
6.8.10 Dual Alarm/Calibration Gas Control Board.................................6-11
6.8.11 Isolated Remote Input/Output Board..........................................6-12
6.8.12 Auto ZERO/SPAN Board............................................................6-12
6.8.13 Current Output Board.................................................................6-12
6.8.14 Auto Range Change...................................................................6-12
SECTION 7. REPLACEMENT PARTS
7.1 CIRCUIT BOARD REPLACEMENT.........................................................7-1
7.2 SELECTED REPLACEMENT PARTS .....................................................7-1
7.2.1 Model 880A Common Parts ..........................................................7-2
7.2.2 Case Heater Temperature Control Assembly................................7-2
7.2.3 Optical Bench................................................................................7-2
DATA SHEET
GENERAL PRECAUTIONS FOR HANDLING & STORING HIGH PRESSURE CYLINDERS
WARRANTY
FIELD SERVICE AND REPAIR FACILITIES
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CONTENTS
748250-L Rosemount Analytical October 1999 v
Model 880A Non-Dispersive Infrared Analyzer
FIGURES
1-1 Model 880A Detection System .................................................................1-1
2-1 Power Supply Board.................................................................................2-2
2-2 Case Heater Temperature Control Board.................................................2-3
2-3 Cable Gland Connections.........................................................................2-3
2-4 Rear View of Model 880A.........................................................................2-7
2-5 Calibration Gas Control and Alarm Connections......................................2-8
2-6 Current Output Connections.....................................................................2-9
2-7 Auto Zero/Span Board Connections.........................................................2-10
2-8 Remote Input/Output Board Connections.................................................2-10
3-1 Model 880A Adjustments..........................................................................3-1
3-2 Model 880A Keypad .................................................................................3-3
3-3 Run Mode Display ....................................................................................3-5
3-4 Logic Flow Chart.......................................................................................3-7
3-5 Security Mode...........................................................................................3-8
3-6 Range Mode.............................................................................................3-9
3-7 Diagnostic Mode.......................................................................................3-12
3-8 Linearizer Mode........................................................................................3-13
3-9 Typical Application Linearization Curve, Linearizer OFF..........................3-15
3-10 User Determined Linearization Curve (Normalized) .................................3-15
3-11 Alarm Mode ..............................................................................................3-16
3-12 Status Display...........................................................................................3-17
3-13 Current Output Mode................................................................................3-18
3-14 Auto Zero/Span ........................................................................................3-20
3-15 Remote Input/Output................................................................................3-22
5-1 Functional Block Diagrams.......................................................................5-2
5-2 Modulation System...................................................................................5-5
6-1 Cell Replacement .....................................................................................6-3
6-2 Motor/Source Assembly............................................................................6-5
6-3 Detector Replacement..............................................................................6-8
7-1 Model 880A Assembly..............................................................................7-3
7-2 Case Heater Temperture Control Assembly.............................................7-4
7-3 Optical Bench ...........................................................................................7-5
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CONTENTS
vi October 1999 Rosemount Analytical 748250-LModel 880A Non-Dispersive Infrared Analyzer
TABLES
2-1 Purging Time at Atmospheric Sample Pressure ......................................2-6
3-1 Remote Range I/O Designation ...............................................................3-23
3-2 Remote Range I/O Binary and Decimal Coding.......................................3-23
5-1 Error Code Summary...............................................................................5-1
6-1 Types of Desiccant...................................................................................6-4
6-2 Jumper Configurations for Option Boards................................................6-12
DRAWINGS (LOCATED IN REAR OF MANUAL)
623782 Schematic Diagram, Microprocessor Board
623995 Schematic Diagram, Oscillator Board
624003 Schematic Diagram, Case Heater Temperature Control Board
624085 Schematic Diagram, Signal Board
624092 Schematic Diagram, Isolated Voltage to Current Board
624127 Schematic Diagram, Adapter Board
624190 Installation Drawing, Model 880A
624204 Schematic Diagram, Dual Alarm/Fail Safe Alarm
624251 Schematic Diagram, Isolated Remote Control Board
624599 Schematic Diagram, Auto Zero/Span Board
655137 Schematic Diagram, Power Supply Board
655147 Pictorial Wiring Diagram, Model 880A
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PREFACE
748250-L Rosemount Analytical October 1999 P-1
Model 880A Non-Dispersive Infrared Analyzer
WARNING: ELECTRICAL SHOCK HAZARD
WARNING: PARTS INTEGRITY
SAFETY SUMMARY
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 Model
880A NDIR Analyzer should be thoroughly familiar with and strictly follow the
instructions in this manual. Save these instructions.
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.
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.
Alarm and zero/span switching relay contacts wired to separate power sources
must be disconnected before servicing.
This instrument is shipped from the factory set up to operate on 115 volt, 50/60
Hz electric power. For operation on 230 volt, 50/60 Hz power, see Section 2.3 for
modifications.
Tampering or unauthorized substitution of components may adversely affect
safety of this product. Use only factory documented components for repair.
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PREFACE
P-2 October 1999 Rosemount Analytical 748250-LModel 880A Non-Dispersive Infrared Analyzer
WARNING: HIGH PRESSURE GAS CYLINDERS
CAUTION: TOPPLING HAZARD
WARNING: POSSIBLE EXPLOSION HAZARD
This analyzer requires periodic calibration with known zero and standard gases.
Refer to Sections 2.6, 3.8, 3.9, 3.10 and 3.11. See also General Precautions for
Handling and Storing High Pressure Cylinders, following Section 7.
This analyzer is of a type capable of analysis of sample gases which may be
flammable. If used for analysis of such gases the instrument must be protected
by a continuous dilution purge system in accordance with Standard ANSI/NFPA
496-1989, Chapter 8.
If explosive gases are introduced into this analyzer, the sample containment
system must be carefully leak-checked upon installation and before initial
startup, during routine maintenance and any time the integrity of the sample
containment system is broken, to ensure the system is in leak-proof condition.
Leak-check instructions are provided in Paragraph 2.8.
Internal leaks resulting from failure to observe these precautions could result in
an explosion causing death, personal injury or property damage.
This instrument’s internal pullout chassis is equipped with a safety stop latch
located on the left side of the chassis.
When extracting the chassis, verify that the safety latch is in its proper (counter-
clockwise) orientation. If access to the rear of the chassis is required, the
safety stop may be overridden by lifting the latch; however, further extraction
must be done very carefully to insure the chassis does not fall out of its
enclosure.
If the instrument is located on top of a table or bench near the edge, and the
chassis is extracted, it must be supported to prevent toppling.
Failure to observe these precautions could result in personal injury and/or
damage to the product.
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PREFACE
748250-L Rosemount Analytical October 1999 P-3
Model 880A Non-Dispersive Infrared Analyzer
SPECIFICATIONS
POWER REQUIREMENTS:115/230 VAC ±10%, 50/60 ±3 Hz, 350 W
OPERATING TEMPERATURE:32°F to 113°F (0°C to 45°C)
DIMENSIONS:8.7 in (22.0 cm) H
19 in. (48.3 cm) W
19 in. (48.3 cm) D, standard case
24 in. (61.0 cm) D, extended case
WEIGHT:56 lbs (25 kg), standard case
68 lbs (31 kg), extended case
REPEATABILITY:1% of fullscale
NOISE:1% of fullscale
ZERO DRIFT:1±1% of fullscale per 24 hours; ±2% of fullscale per week
SPAN DRIFT:1±1% of fullscale per 24 hours; ±2% of fullscale per week
RESPONSE TIME:
(ELECTRONIC)Variable, 90% of fullscale in 0.5 sec to 20 sec, field
selectable. (Application dependent)
SENSITIVITY:100 ppm fullscale carbon monoxide at atmospheric pressure
50 ppm fullscale carbon dioxide at atmospheric pressure
SAMPLE CELL LENGTH:0.04 in. (1 mm) to 14.0 in. (381 mm)
MATERIALS IN CONTACT WITH SAMPLE
WINDOWS:Sapphire, quartz, Irtran
CELLS:Gold plated Pyrex or stainless steel
TUBING:FEP Teflon
FITTINGS:316 stainless steel
O-RINGS:Viton-A
SAMPLE PRESSURE:Max 10 psig (69 kPa), standard
Pressurized application available upon request
ANALOG OUTPUT:Standard: 0 to 5 VDC
Optional: 0 to 20 mA/4 to 20 Ma
LINEARIZATION:Keypad entered coefficients for linearizing 1, 2 or all 3 ranges
ENCLOSURE:General purpose for installation in weather-protected area.
Optional purge kit per Type Z, ANSI/NFPA 496-1989.2
1Performance specifications based on ambient temperature shifts of less than 20°F (11°C) per hour.
2When installed with user-supplied components, meets requirements for Class I, Division 2 locations per National
Electrical Code (ANSI/NFPA 70) for analyzers sampling non-flammable gases. Analyzers sampling flammable gases
must be protected by a continuous dilution purge system in accordance with Standard ANSI/NFPA 496-1989, Chapter 8.
Consult factory for recommendations.
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PREFACE
P-4 October 1999 Rosemount Analytical 748250-LModel 880A Non-Dispersive Infrared Analyzer
OPTIONS SPECIFICATIONS
ALARM
Alarm Relay Outputs: Two single point, field programmable high or low, deadband 5%
to 20% of fullscale.
Two form C contacts rated 3A-125/250 VAC or 5A-30 VDC
(resistive)
ZERO/SPAN
Relay Outputs: Two front panel actuated contact closures
Two form C contacts rated 3A-125/250 VAC or 5A-30 VDC
(resistive)
AUTO ZERO/SPAN
Relay Outputs: Four form C contacts rated 3A-125/250 VAC or 5A-30 VDC
(resistive), field programmable frequency and duration of
closure.
Two form A contact closures for indication of insufficient zero
and span adjustment, rated (resistive load):
Max switching power: 10 Watts
Max switching voltage: 30 VDC
Max switching current: 0.5 A
REMOTE RANGE CHANGE & ID
Three remotely changeable ranges with positive identification.
Binary code field selectable.
RELAY OUTPUTS:Eight form A contacts rated (resistive load):
Max switching power: 10 Watts
Max switching voltage: 30 VDC
Max switching current: 0.5 A
INPUTS:Eight optical couplers
Input Range: +5 VDC to +24 VDC
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PREFACE
748250-L Rosemount Analytical October 1999 P-5
Model 880A Non-Dispersive Infrared Analyzer
CUSTOMER SERVICE, TECHNICAL ASSISTANCE AND FIELD SERVICE
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
RETURNING PARTS TO THE FACTORY
Before returning parts, contact the Customer Service Center and request a Returned
Materials Authorization (RMA) number. Please have the following information when
you call: Model Number, Serial Number, and Purchase Order Number or Sales Order
Number.
Prior authorization by the factory must be obtained before returned materials will be
accepted. Unauthorized returns will be returned to the sender, freight collect.
When returning any product or component that has been exposed to a toxic, corrosive
or other hazardous material or used in such a hazardous environment, the user must
attach an appropriate Material Safety Data Sheet (M.S.D.S.) or a written certification
that the material has been decontaminated, disinfected and/or detoxified.
Return to:
Rosemount Analytical Inc.
4125 East La Palma Avenue
Anaheim, California 92807-1802
TRAINING
A comprehensive Factory Training Program of operator and service classes is
available. For a copy of the Current Operator and Service Training Schedule contact
the Technical Services Department at:
Rosemount Analytical Inc.
Phone: [phone]
FAX: [phone]
DOCUMENTATION
The following Model 880A Non-Dispersive Infrared Analyzer instruction materials are
available. Contact Customer Service or the local representative to order.
748250 Instruction Manual (this document)
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PREFACE
P-6 October 1999 Rosemount Analytical 748250-LModel 880A Non-Dispersive Infrared Analyzer
APPROVED
FM
NAMUR
N96
COMPLIANCES
Model 880A Non-Dispersive Infrared Analyzers, Catalog Numbers 191811 (Standard)
and 191812 (Extended) when installed with optional Type Z Purge Kit P/N 624446 for
use in indoor Class I, Division 2, Groups B, C, and D hazardous locations and for use
in indoor non-hazardous locations when sampling flammable gases. When installed
without purge kit option, this equipment is intended for sampling only non-flammable
gases in non-hazardous locations.
This product may carry approvals from a certifying agency or may be in compliance with
EMC Directive. If so, the product will carry approval insignia, like those shown here, on the
product name rating plate.
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.
97-C209
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1
INTRODUCTION
748250-L Rosemount Analytical October 1999 1-1
Model 880A Non-Dispersive Infrared Analyzer
1.1 GENERAL DESCRIPTION
The Model 880A Non-Dispersive Infrared Analyzer is designed to continuously
determine the concentration of a particular component of interest in a flowing gaseous
mixture. Within the analyzer, two equal energy infrared beams are directed through
two parallel optical cells, a flow-through sample cell and a reference cell. The Luft
detector continuously measures the difference in the amount of infrared energy
absorbed within each of the two cells. This difference is a measure of the
concentration of the component of interest in the sample.
Readout is on the 16-character, backlighted liquid crystal display in parts per million,
percent of composition or percent of fullscale. Additionally, a 0 to +5 VDC output for a
potentiometric (voltage) recorder is provided as standard.
A linearizer, based on a fourth-order polynomial, is incorporated in the electronic
circuitry. By turning the linearizer ON and entering the correct coefficients, an output
linear with concentration is obtained.
FIGURE 1-1. MODEL 880A DETECTION SYSTEM
INFRARED
SOURCE
DETECTOR
SIGNAL SIGNAL
CONDITIONING
CIRCUITRY
REFERENCE
CELL
STATIONARY
BUTTON
CHOPPER
SAMPLE IN
SAMPLE
CELL
SAMPLE OUT
DIAPHRAGM
DISTENDED
COMPONENT OF INTEREST
OTHER MOLECULES
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INTRODUCTION
1-2 October 1999 Rosemount Analytical 748250-LModel 880A Non-Dispersive Infrared Analyzer
1.2 AVAILABLE OPTIONS
Operation of the Model 880A can be enhanced with the choice of several options:
DUAL ALARMS (STANDARD AND FAIL-SAFE)
User-set dual alarms are available with configurable HI/LO designations and
deadband.
CURRENT OUTPUT
For normal usage, the 0/4 to 20 mA current output can be set to represent 0 to 100%
of fullscale, or a suppressed range of 25% or more of fullscale may be selected.
AUTO ZERO/SPAN
An Automatic Zero/Span is available for unattended calibration of all three ranges.
CALIBRATION GAS CONTROL
A Calibration Gas Control allows two solenoids to be remotely actuated from the front
panel, enabling one-man calibration without leaving the analyzer.
REMOTE RANGE SELECTION AND ID
A remote range change and ID is available.
CASE HEATER
A proportional temperature controller with fan assembly maintains proper operating
temperature inside the case.
PURGE KITS
An air purge kit, when installed with user-supplied components, meets Type Z
requirements of standard ANSI/NFPA 496-1989 for installation in Class I, Division 2
locations as defined in the National Electrical Code (ANSI/NFPA 70) when sampling
non-flammable gases. If analyzer is used to sample a flammable gases it must be
protected by a continuous dilution purge system per standard ANSI/NFPA 496-1989,
Chapter 8. Consult factory for further information.
A motor source or motor source/reference cell purge kit accompanies some
configurations of the Model 880A. The purpose for these kits is reduction of ambient
CO2interference and, thus, improved performance and accuracy. These purges do
not provide explosion hazard protection.
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2
UNPACKING AND INSTALLATION
748250-L Rosemount Analytical October 1999 2-1
Model 880A Non-Dispersive Infrared Analyzer
2.1 UNPACKING
Carefully examine the shipping carton and contents for signs of damage. Immediately
notify the shipping carrier if the carton or its contents are damaged. Retain the carton
and packing material until the instrument is operational
2.2 LOCATION
Locate the analyzer in a weather-protected, non-hazardous location free from
vibration. For best results mount the analyzer near the sample stream to minimize
sample-transport time. Refer to Installation Drawing 624190.
If equipped with P/N 624446 air purge kit and installed with user-provided
components per Instructions 015-748157, the analyzer may be located in a Class I,
Division 2 area as defined by the National Electrical Code (ANSI/NFPA 70). This kit is
designed to provide Type Z protection in accordance with Standard ANSI/NFPA
496-1989, Chapter 2, when sampling nonflammable gases. For flammable samples,
the instrument must be equipped with a continuous dilution purge system in
accordance with ANSI/NFPA 496-1989, Chapter 8.
2.3 VOLTAGE REQUIREMENTS
For safety and proper performance, this instrument must be connected to a
properly grounded three-wire source of electrical power.
This instrument was shipped from the factory configured to operate on 115 VAC,
50/60 Hz electric power. For operation on 230 VAC, 50/60 Hz, voltage select switches
S1, S2, located on Power Supply Board (Figure 2-1) and, if installed, S3, located on
the Case Heater Temperature Control Board Figure 2-2 (see Figure 7-2, Case Heater
Temperature Control Assembly) must be in the 230 VAC position. Power consumption
is 350 watts.
WARNING: ELECTRICAL SHOCK HAZARD
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UNPACKING AND INSTALLATION
2-2 October 1999 Rosemount Analytical 748250-LModel 880A Non-Dispersive Infrared Analyzer
2.4 ELECTRICAL CONNECTIONS
The power, recorder and current output cable glands are shipped already installed to
allow attachment of cables to connectors or terminal strips. Cable glands for specific
cables are as follows:
CABLE GLAND PART NO.
POWER 899330
RECORDER 899329
OPTION BOARD 899329
Remove the rear cover to access the terminals. Route each cable through the cable
gland and connect to appropriate connector or terminal strip, tighten the gland.
FIGURE 2-1. POWER SUPPLY BOARD
2.4.1 LINE POWER CONNECTIONS
Refer to Figures 2-3, 2-4 and drawing 624190. If this instrument is located on a bench
or table top or is installed in a protected rack, panel or cabinet, power may be
connected via a 3-wire flexible power cord, minimum 18 AWG (max. O.D. 0.480",
min. O.D. 0.270") through hole labeled POWER, utilizing connector gland (P/N
899330) provided.
115 115
Q3
C18
R39
655135 POWER SUPPLY BD
R9
C13
TP1 TP2
CR5
+
C20
C19
Q2
Q4
C21
AR5
AR4
U2
R7
R6
R5
R4
R8
R10
R3
R36
R35
R34
R37
R20
R18
J
10
R19
R15
R16
R17
R
38
J14
C14
AR1
U1
R31
C16
R32
R28
R27
R30
CR8
R14 J11
R23
R24
R26
R29
R25 J8
J15
C15
Q1
R21
R22
1
J13
1
1
1
1
E
J7
1
R33
CR7
CR6 AK
G
EB
C
B
C
+
+
+
+
C8
+
C7
C6
C5
- CR1 +
VR1 I
G
O
VR2 I
G
O
C12
C10
C11
C9
+
+
+
VR3 G
I
O
VR4 I
G
O
+
C1
+
C3
+
C2
+
C4
CR2
CR3
CR4
+
+
+
FAN
J2
1
11
J4
J5
DETECTOR
HEATER
TEMP
CONTROL
CASE
1
J16
4 3 2 1
K1
230V
115V
S2 S1
S3
SS LUFT R12 R13
R1
R2
R11
S2 S1
Set switch windows for voltage required
12
3
45
8
6
7
Heater LED (CR5)
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UNPACKING AND INSTALLATION
748250-L Rosemount Analytical October 1999 2-3
Model 880A Non-Dispersive Infrared Analyzer
FIGURE 2-2. CASE HEATER TEMPERATURE CONTROL BOARD
Accessory kits are available which include one of the following: 1) a 10-foot North
American power cord set and four enclosure support feet (P/N 654008) for bench top
use, 2) the power cord only (P/N 634061), or 3) the four feet only (P/N 634958). If the
instrument is permanently mounted in an open panel or rack, use electrical metal
tubing or conduit.
Route the power cable through the cable gland and connect the leads to TB1. After
connecting the leads, tighten the cable gland adequately to prevent rotation or
slippage of the power cable. Since the rear terminals do not slide out with the chassis,
no excess power cable slack is necessary.
FIGURE 2-3. CABLE GLAND CONNECTIONS
S3
Set switch window for voltage required
SENSOR J18 POWER
SUPPLY
J11
POWER
LINE
J5
400A 880 951E
AR1
J19
TEST T.I.F. HEATER J17 115
230
S3
U2
1
2
3
U1
1
1 2 1 2 3
1
E
B
CQ3
CR3
R13
R2R1
Q1
G
A
K
R3
R4
C1
Q2
C
BE
CR1
C2 R10 R11 R7 R8 R17 R16 R12CR2 1C3 R6
R9 R5
R15 R14
C4 3 2 1
TEMP CONTROL BD
+
115
Case Wall
INTERIOR EXTERIOR
Cable
Nut Gland Nut
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