Instruction Manual
748054-L
May 2003
Model 7003D
Oxygen Monitor
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 techni cal products, you
MUST properly install, use, and maintain them
normal specifications. The following instructions MUST be adhered to and integrated into your
safety program when installing, using, and maintaining Rosemount Analytical products. Failure to
follow the proper instructions may cause any one of the following situations to occur: Loss of life;
personal injury; property damage; damage to this instrument; and warranty invalidation.
to ensure they continue to operate within their
• Read all instructions
prior to installing, operating, and servicing the product.
• If you do not understand any of the instructions, contact your Rosemount Analytical representative for clarification.
• Follow all warnings, cautions, and instructions marked on and supplied with the product.
• Inform and educate your personnel in the proper installation, operation, and maintenance of
the product.
• Install your equipment as specified in the Installation Instructions of the appropriate Instruc-
tion Manual and per applicable local and national codes. Connect all products to the proper
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 replace ment 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.
Ryton® is a registered trademark of Phillips Petroleum Co.
Teflon® is a registered trademark of E.I. duPont de Nemours and Co., Inc.
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: gas.csc@EmersonProcess.com
http://www.processanalytic.com
Model 7003D
PREFACE...........................................................................................................................................P-1
Definitions...........................................................................................................................................P-1
Safety Summary.................................................................................................................................P-2
Documentation....................................................................................................................................P-5
Compliances.......................................................................................................................................P-5
1-0 DESCRIPTION AND SPECIFICATIONS..............................................................................1-1
1-1 Oxygen Monitor.....................................................................................................................1-1
1-2 Sensors..................................................................................................................................1-2
1-3 Specifications.........................................................................................................................1-3
a. Performance....................................................................................................................1-3
b. Electrical..........................................................................................................................1-3
c. Alarm...............................................................................................................................1-3
d. Physical...........................................................................................................................1-3
e. Sensor.............................................................................................................................1-4
Instruction Manual
748054-L
May 2003
TABLE OF CONTENTS
2-0 INSTALLATION ....................................................................................................................2-1
2-1 Unpacking And Facility Preparation......................................................................................2-1
2-2 Location And Mounting..........................................................................................................2-1
2-3 Electrical Connections...........................................................................................................2-1
a. Line Power Connection...................................................................................................2-1
b. System Grounding Connection.......................................................................................2-1
c. Sensor Cable Connection...............................................................................................2-2
d. Output Cable Connection................................................................................................2-2
e. Output Connections for Alarms.......................................................................................2-4
2-4 Sensors – Rechargeable.......................................................................................................2-5
a. Installation of Sensor and Fast-Response Flow Kit........................................................2-5
b. Installation of Sensor and In-Line Flow Kit .....................................................................2-7
c. Installation of Sensor and Submersion Kit......................................................................2-9
2-5 Sensors - Non-Rechargeable................................................................................................2-12
a. Conversion Of Oxygen Monitor From Use With Rechargeable Sensor To Use With
Non-Rechargeable Sensor .............................................................................................2-12
b. Installation of Sensor and In-Line Flow Assembly..........................................................2-12
c. Installation of Sensor with Submersion Assembly..........................................................2-12
3-0 STARTUP AND CALIBRATION...........................................................................................3-1
3-1 System Startup......................................................................................................................3-1
3-2 Calibration..............................................................................................................................3-1
a. Calibration with Air..........................................................................................................3-1
b. Calibration with Span Gas ..............................................................................................3-2
3-3 Selection of Alarm Range, Setpoint, and Deadbands...........................................................3-2
3-4 Current Output Range...........................................................................................................3-4
4-0 OPERATION .........................................................................................................................4-1
4-1 Routine Operation .................................................................................................................4-1
4-2 recommended Calibration Frequency...................................................................................4-1
4-3 Frequency of Sensor Recharging..........................................................................................4-1
Rosemount Analytical Inc. A Division of Emerson Process Management Contents i
Instruction Manual
748054-L
May 2003
5-0 THEORY................................................................................................................................5-1
5-1 Electrochemical Theory.........................................................................................................5-1
5-2 Variables Influencing Oxygen Measurement.........................................................................5-2
6-0 ROUTINE SERVICE AND TROUBLESHOOTING...............................................................6-1
6-1 Rechargeable sensors...........................................................................................................6-1
a. Recharging Sensor.........................................................................................................6-1
b. Rejuvenating Cathode ....................................................................................................6-3
c. Cell Separator Kit............................................................................................................6-4
6-2 Non-Rechargeable Sensors..................................................................................................6-4
6-3 Troubleshooting.....................................................................................................................6-4
a. Checking Rechargeable Sensor and Cable....................................................................6-5
b. Checking Non-Rechargeable Sensor and Cable............................................................6-7
7-0 REPLACEMENT PARTS......................................................................................................7-1
7-1 Circuit Board Replacement Policy.........................................................................................7-1
7-2 Replacement Parts................................................................................................................7-1
7-3 Replacement Parts - Sensors................................................................................................7-2
a. Rechargeable Sensors ...................................................................................................7-2
b. Non-Rechargeable Sensors............................................................................................7-3
Model 7003D
8-0 RETURN OF MATERIAL......................................................................................................8-1
8-1 Return Of Material.................................................................................................................8-1
8-2 Customer Service..................................................................................................................8-1
8-3 Training..................................................................................................................................8-1
ii Contents Rosemount Analytical Inc. A Division of Emerson Process Management
Model 7003D
Figure 1-1. Model 7003D Oxygen Monitor............................................................................... 1-1
Figure 1-2. Rechargeable Sensor............................................................................................ 1-2
Figure 1-3. Non-Rechargeable Sensor.................................................................................... 1-2
Figure 2-1. Power Supply Board.............................................................................................. 2-2
Figure 2-2. Connections for Potentiometric Recorder with Non-Standard Span..................... 2-3
Figure 2-3. Typical Example of Oxygen Monitor Connected in Series with Several Current
Actuated Devices................................................................................................... 2-4
Figure 2-4. Rechargeable Sensor with Fast Response Flow Assembly.................................. 2-6
Figure 2-5. Mounting Rechargeable Sensor in Fast Response Flow Assembly...................... 2-6
Figure 2-6. Typical Installation Orientation of Rechargeable Sensor and Fast Response
Flow Assembly.......................................................................................................2-7
Figure 2-7. Rechargeable Sensor with Gland and In-Line Flow Assembly ............................. 2-8
Figure 2-8. Preferred Installation Orientation of Rechargeable Sensor and In-Line Flow
Assembly ............................................................................................................... 2-9
Figure 2-9. Rechargeable Sensor with Submersion Assembly.............................................. 2-10
Figure 2-10. Typical Installation of Rechargeable Sensor and Submersion Assembly........... 2-10
Figure 2-11. Typical Permanent Installation of Rechargeable Sensor with Submersion
Assembly During Plant Construction................................................................... 2-11
Figure 2-12. Typical Installation of Sensor/Submersion Assembly in an Existing Plant.......... 2-11
Figure 2-13. Dimensions and Components of Non-Rechargeable Sensor with In-Lin e
Flow Kit................................................................................................................ 2-14
Figure 2-14. Typical Installation of Non-Rechargeable Sensor with In-Line Flow Kit.............. 2-15
Figure 2-15. Dimensions and Components of Non-Rechargeable Sensor with
Submersion Kit..................................................................................................... 2-15
Figure 2-16. Typical Installation of Non-Rechargeable Sensor with Submersion Kit .............. 2-16
Figure 3-1. Display Board......................................................................................................... 3-3
Figure 3-2. Isolated Current Output Board...............................................................................3-4
Figure 5-1. Rechargeable Oxygen Sensor - Sectional View.................................................... 5-1
Figure 6-1. Rechargeable Sensor – Exploded View................................................................ 6-2
Instruction Manual
748054-L
May 2003
LIST OF ILLUSTRATIONS
LIST OF TABLES
Table 6-1. Rechargeable Sensor Troubleshooting Guide ..................................................... 6-6
Table 6-2. Non-Rechargeable Sensor Troubleshooting Guide............................................... 6-7
LIST OF DRAWINGS
620434 Schematic Diagram, Isolated V/I Board
622228 Interconnect Diagram, Model 7003D Oxygen Monitor
622530 Schematic Diagram, Display Board
622538 Schematic Diagram, Power Supply Board
622617 Outline and Mounting Drawing, Model 7003D Oxygen Monitor
Rosemount Analytical Inc. A Division of Emerson Process Management Contents iii
Instruction Manual
748054-L
May 2003
Model 7003D
iv Contents Rosemount Analytical Inc. A Division of Emerson Process Management
Instruction Manual
Model 7003D
PREFACE
The purpose of this manual is to provide information concerning the components,
functions, installation and maintenance of the Model 7003D Oxygen Monitor.
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 .
748054-L
May 2003
Highlights the presence of a hazard which will cause severe personal injury, death, or substantial
property damage if the warning is ignored.
WARNING .
Highlights an operation or maintenance procedure, practice, condition, statement, etc. If not
strictly observed, could result in injury, death, or long-term health hazards of personnel.
CAUTION.
Highlights an operation or maintenance procedure, practice, condition, statement, etc. If not
strictly observed, could result in damage to or destruction of equipment, or loss of effectiveness.
NOTE
Highlights an essential operating procedure,
condition or statement.
Rosemount Analytical Inc. A Division of Emerson Process Management Preface P-1
Instruction Manual
748054-L
May 2003
Model 7003D
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. Electrical installation must be made in accordance with any applicable
national or local codes.
Alarm switching relay contacts wired to separate power source must be disconnected before servicing.
WARNING .
PARTS INTEGRITY
Tampering or unauthorized substitution of components may adversely affect safety of this produc t.
Use only factory documented components for repair.
CAUTION .
HIGH PRESSURE GAS CYLINDERS
This module requires periodic use of pressurized gas. See General Precautions for Handling and
Storing High Pressure Gas Cylinders, page P-4.
P-2 Preface Rosemount Analytical Inc. A Division of Emerson Process Management
Instruction Manual
Model 7003D
WARNING.
ENCLOSURE INTEGRITY
Unused cable conduit entries must be securely sealed by flameproof closures to prov ide enclosure
integrity in compliance with personnel safety and environmental protection requirements. The
plastic closures provided are for shipping protection only. When installing instrument, observe all
notes on drawing 622617 (in rear of this manual).
WARNING
ELECTRICAL SHOCK HAZARD
To avoid shock hazard and AC pickup, do not route potentiometric output or current outpu t cables
through the same conduit as power cable or alarm output cable.
WARNING
748054-L
May 2003
CORROSIVE MATERIAL
Concentrated nitric acid is used in rejuvenating the sensor cathode (Section 6-1b on page 6-3).
This material is highly corrosive.
CAUTION
CONDUIT GROUNDING
The non-metallic enclosure does not provide grounding between conduit connections. Use
grounding-type bushings and jumper wires.
Rosemount Analytical Inc. A Division of Emerson Process Management Preface P-3
Instruction Manual
748054-L
May 2003
Model 7003D
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 extreme s 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 whe n an empty cylinder is
attached to a pressurized system.
7. No part of cylinder should be subjected to a temperature higher than 125
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 wel ding,
precautions must be taken to prevent striking an arc against the cylinder.
°
F (52°C). A flame should
P-4 Preface Rosemount Analytical Inc. A Division of Emerson Process Management
Instruction Manual
Model 7003D
DOCUMENTATION
The following Model 7003D instruction materials are available. Contact Customer Service Center or the
local representative to order.
748054 Operator Manual (this document)
COMPLIANCES
The Model 7003D Oxygen Monitor is designed to comply with applicable American standard s for protectio n
against electrical shock, mechanical and fire hazards in non-hazardous (ordinary) locations. The instrument must be installed in accordance with the provisions of the National Electrical Code (NEC),
ANSI/NFPA 70, and/or any applicable national or local code(s), and operated and maintained in the recommended manner.
748054-L
May 2003
The oxygen sensors and interconnecting cable used with the Model 7003D Oxygen Monitor are nonincendive in normal operation and comply with the requirements of Articles 501-3 (b)(1) c and 501-4 (b),
Exception, of the National Electrical Code, ANSI/NFPA 70-1987, for installations in Class I, Groups A, B, C,
D Division 2 classified locations.
Rosemount Analytical Inc. A Division of Emerson Process Management Preface P-5
Instruction Manual
748054-L
May 2003
Model 7003D
P-6 Preface Rosemount Analytical Inc. A Division of Emerson Process Management
Model 7003D
The Model 7003D Oxygen Monitor (Figure
1-1 below) automatically and continuously
measures the oxygen concentration in
gaseous samples. The determination is
based on measurement of the electrical current developed by an amperometric sensor
in contact with the sample.
The monitor provides direct readout of concentration in % by volume. Alarms and a
potentiometric output are provided as standard. The fullscale range of the alarms and
the potentiometric output are each independently selectable. Thus, the range of the
potentiometric output may be changed without the need to readjust alarm setpoints.
The Model 7003D is used with a sensor
which is housed in a submersion assembly
or flow assembly and is connected to the
monitor by a multi-conductor shielded cable.
Instruction Manual
748054-L
May 2003
SECTION 1
DESCRIPTION AND SPECIFICATIONS
1-1 OXYGEN MONITOR
The oxygen monitor conditions the sensor
output signal to provide direct readout of oxygen in % by volume. It also contains current-measuring circuitry, operating controls,
digital display, alarms, and signal outputs provisions.
The monitor is designed for panel mounting.
Accessory Pipe Mounting Kit permits the oxygen monitor to be mounted on a vertical or
horizontal pipe. Accessory Wall Mounting Kit
permits wall (surface) mounting. An optional
air purge kit is designed to meet requirements
for NFPA-496 Type Z air purge (see specifications) .
An accessory Isolated Current Output Board
provides a field-selectable 0 to 20 mA, or 4 to
20 mA isolated current output.
LOW
LOW
SET PT
%
SET PT
Model 7003D Oxygen Monitor
Figure 1-1. Model 7003D Oxygen Monitor
Rosemount Analytical Inc. A Division of Emerson Process Management Description and Specifications 1-1
Instruction Manual
748054-L
May 2003
1-2 SENSORS
Rosemount Analytical offers rechargeable and
disposable oxygen sensors which can be
used with the Model 7003D. See Figure 1-2
below and Figure 1-3 below. These sensors
are supplied alone or in kits: Submersion, inline flow, and fast response.. Sensors are
available constructed of polypropylene or Ryton. See Section 2-4 on page 2-5 - Sensors,
Rechargeable, Section 2-5 on page 2-12 Sensors - Non-Rechargeable and Section 7-3
on page 7-2 - Sensors, Replacement Parts
for additional information.
Rechargeable - Fast-Response Flow
The fast-response flow assembly allows
minimum volume gas flow that permits mounting the sensor in a flowing gas stream. Sample is supplied at slightly above atmospheric
pressure, flows through the assembly and
discharges to atmospheric pressure. Internal
volume of the assembly is low to minimize
system response time.
Rechargeable - In-Line Flow
The in-line pressure compensated flow assembly permits mounting the sensor in a variable pressure gas stream at pressures up to
50 psig (345 kPa). The typical application is
in-line monitoring with the flow assembly connected directly into the process stream pipeline. An alternative application involves
discharge to atmospheric pressure where discharge rates are high.
Rechargeable - Submersion Assembly
The submersion assembly permits placing the
sensor at depth, in an open or closed vessel,
at a maximum pressure of 50 psig (345 kPa).
The submersion assembly provides a convenient means of mounting the sensor, and also
affords protection for the sensor cable connection a feature particularly desirable in high
humidity environments.
Non-Rechargeable - In-Line Flow
The in-line flow assembly permits mounting
the sensor in a flowing gas stream. Also included is a universal mounting bracket and a
Model 7003D
cable assembly for connecting the disposable
oxygen sensor to the monitor.
Non-Rechargeable - Submersion
The submersion assembly adapts the oxygen
sensor so that it may be inserted through the
wall of a vessel or pipe to monitor the oxygen
concentration existing in the vessel or pipe.
Figure 1-2. Rechargeable Sensor
Figure 1-3. Non-Rechargeable Sensor
1-2 Description and Specifications Rosemount Analytical Inc. A Division of Emerson Process Management
Model 7003D
1-3 SPECIFICATIONS
a. Performance
Operating Range........................... 0 - 19.99% to 0 to 25% oxygen by volume
Sample Temperature..................... 32°F to 110°F (0°C to 44°C)
Ambient Temperature.................... -20°F to 122°F (-29°C to 50°C) for instrument
Ambient Humidity .......................... Up to 95% relative humidity, non-condensing
System Linearity............................ For constant sample temperature after correction for sensor zero
b. Electrical
Power Requirements.....................107 to 127 VAC, 50/60 Hz, 0.2 A or 214 to 254 VAC, 50/60 Hz, 0.1
Potentiometric Output.................... Selectable: 0-25%, 0-10%, 0-5% or 0-1% oxygen fullscale
Voltage Output............................... Selectable: 0-10V, 0-5V, or 0-1V fullscale
Current Output (Option)................. Isolated 0-20mA or 4-20mA over same range as potentiometric
Instruction Manual
748054-L
May 2003
offset: ±1% of fullscale
Minimum load: 2K ohms
output. Minimum load: 600 ohms.
c. Alarm
Range............................................ Selectable: 0-25%, 0-10%, 0-5%, or 0-1% oxygen fullscale
Contacts ........................................ Two independently adjustable SPDT relay contact actuations
Contact Rating (resistive load)...... Maximum switching voltage: 250 VAC, 30 VDC
Maximum switching current : 3A
Deadband...................................... Adjustable from less than 2% to 20% of range at any setpoint
Repeatability.................................. ±0.1% of range
d. Physical
Mounting........................................Standard: Panel mount
Optional: Surface mount, pipe mount
Dimensions.................................... 10.4 x 8.9 x 8.3 inches (265 x 225 x 210 mm) HxWxD
Weight ........................................... 4.2 lbs (1.9 kg)
Enclosure....................................... NEMA-4X general purpose.
Optional air purge designed to NFPA-496 Type Z.
1
Sensor Cable................................. 1000 ft (305 m) Maximum length between instrument and sensor.
1
The optional air purge, when installed alon g with user supplied components, is designed to equip the instrument enclosure
with Type Z purge protection per Standard ANSI/NFPA 496-19 86. This reduces the classification within the enclosure from
Class I, Division 2 (normally non-hazardous ) to non-hazardous, thus permitting installation in a location classifie d Class I,
Groups A, B, C, D, Division 2. This method of protection is recognized in Article 500-1 of the National Electrical Code
(NEC)< ANSI/NFPA 70.
Rosemount Analytical Inc. A Division of Emerson Process Management Description and Specifications 1-3
Instruction Manual
748054-L
May 2003
e. Sensor
Type............................................... Rechargeable, non-rechargeable (disposable)
Stability.......................................... ±1% of fullscale at any given temperature per 24 hours, for an
Temperature Compensations........ 32°F to 110°F (0°C to 44°C) ±6% of reading
Response Time............................. 90% in 20 seconds for a step change, using an equilibrated sensor
Sample Pressure........................... 0 to 50 psig (0 to 345 kPa)
Model 7003D
equilibrated sensor
60°F to 90°F (15°C to 32°C) ±3% of reading
For any other 30°F (16°C) ±4% of reading
at 25°C
1-4 Description and Specifications Rosemount Analytical Inc. A Division of Emerson Process Management
Model 7003D
Instruction Manual
748054-L
May 2003
SECTION 2
INSTALLATION
2-1 UNPACKING AND FACILITY PREPARATION
Carefully examine the shipping carton and
contents for signs of damage. Immediately
notify the shipping carrier if the carton or contents is damaged. Retain the carton and
packing material until all components associated with the Model 7003D Oxygen Monitor
are operational.
Outline and mounting dimensions for the oxygen monitor are given in the outline and
mounting drawing 622617.
2-2 LOCATION AND MOUNTING
Mount the sensor in an environment within the
permissible range of 32°F to 110°F (0°C to
44°C) The sensor is supplied, as ordered, in a
kit that includes a submersion assembly or
flow chamber.
Sensor and amplifier are interconnected by a
multi-conductor shielded cable. It is supplied
in the standard 10 foot length, or in any length
specified by customer, up to 1000 feet (305
m). See Section 7.
The oxygen monitor is designed to meet
NEMA-4X requirements, and may be mounted
outdoors Permissible ambient temperature
range is -20°F to +122°F (-29°C to +50°C).
Panel mount the amplifier, or use the accessory wall mount kit or accessory pipe mount
kit as desired.
2-3 ELECTRICAL CONNECTIONS
WARNING
ELECTRICAL SHOCK HAZARD
Do not operate without doors and internal
circuit panel secure. Servicing requires
access to live parts which can cause death
or serious injury. Refer servicing to qualified personnel.
a. Line Power Connection
The Model 7003D provides
switch-selectable operation on either 107
VAC to 127 VAC or 214 VAC to 254 VAC,
50/60 Hz.
Electrical power is supplied to the monitor
via a customer-supplied three-conductor
cable, type SJT. minimum wire size 18
AWG. Route power cable through conduit and into appropriate opening in monitor enclosure. Connect power cable leads
to terminal strip TB5 on the power supply
board, as shown in Figure 2-1 on page 22 and drawing 622228.
Voltage Select
1. Open the monitor door.
2. Loosen the retainer screw which holds
the display board and pivot the display board to access the power supply board.
Rosemount Analytical Inc. A Division of Emerson Process Management Installation 2-1
3. Verify that the line voltage selector
switch S1 is set to indicate the nominal line voltage: either 115 or 230
(Figure 2-1 on page 2-2).
b. System Grounding Connection
A ground terminal (TB5-GND) is provided
on the power supply board. Refer to
Figure 2-1 on page 2-2. This terminal
must be connected, via the ground lead of
the three-conductor power cable to a
good earth ground.
Instruction Manual
A
A
A
748054-L
May 2003
Isolated V/I Board
(Option)
(see
Figure 3-2 on page 3-3)
Recorder
TB3
Sensor
TB2
R
1
R4
R3
R8
R9
POWER SUPPLY BOARD 622537
J1
R5 R6
U2
C2
U3
U6
C4
O
G
I
C5
CR2
1 2 3 4
I G O
TB1
30K
THERM
TB2
Current Output
TB3
C1
U1 J1
CR
C3
U4
I
G
O
U5
3K/10K
THERM
SHLD
CATH
M
TB3
CR2
U5
O
G
I
U1
U3
O
G
I
O
O
I
G
G
I
U2 U4
SHIELD
+VOLTAGE OUT
-VOLTAGE OUT
+CURRENT OUT
-CURRENT OUT
CR3
CR4
O
G
CR1
Model 7003D
C2 C1
I
K2
F1
K1
TB4
NO
COM
LARM
NC
NO
COM
LARM
NC
TB5
C3
GND
NEUTRAL/L2
HOT/L1
T1
Voltage Select Switch
S1
S1
AC Power
TB5
c. Sensor Cable Connection
If a long cable is used, it should be routed
to the amplifier through appropriate conduit. Connect the amplifier end of the cable to terminal strip TB2 on the power
supply board, as shown in Figure 2-1
above and drawing 622228.
Connect the cable to the sensor when installation of the sensor is complete.
d. Output Cable Connection
ELECTRICAL SHOCK HAZARD
To avoid shock hazard and AC pickup,
do not route potentiometric output or
current output cables through the
same conduit as power cable or alarm
output cable.
If a recorder, controller, or other output
device is used, connect it via number 22
or number 24 AWG two-conductor
shielded cable. Route the output cable
Figure 2-1. Power Supply Board
through conduit to the oxygen monitor,
and into the case through the appropriate
opening shown in drawing 622617.
Potentiometric Output
1. Connect leads of shielded recorder
cable to VOLTOUT + and VOLTOUT
- terminals of TB3 on power supply
board (Figure 2-1 above). Connect
shield to SHD terminal.
2. Connect other end of output cable to
appropriate terminals of recorder or
other potentiometric device.
WARNING
a. For devices with spans of 0 to
1.0 to 5, or 0 to 10 volts connect
cable directly to input terminals
of the device, making sure polarity is correct.
b. For devices with intermediate
spans. i.e., between the specified values, connect cable to device via a suitable external
voltage divider. as shown in
Figure 2-2 on page 2-3.
2-2 Installation Rosemount Analytical Inc. A Division of Emerson Process Management
Model 7003D
r
Instruction Manual
748054-L
May 2003
Isolated Current Output Accessory
1. Verify that the current output board
(Isolated V/I Board) is properly
mounted on the power supply board
in connector J2. See Figure 2-1 on
page 2-2. If originally ordered with
the oxygen monitor, the board is fac-
must be connected in series. Refer to
Figure 2-2 below.
NOTE
Total resistance of all output devices
and associated interconnection cable
must not exceed 600 ohms.
tory installed.
4. Since neither the CUROUT + nor
2. Connect leads of shielded cable to
CURRENT OUT + and CURRENT
OUT - terminals of TB3 on power
supply board. Connect shield to SHD
terminal.
CUROUT - output terminal is
grounded, the current loop should be
grounded at some point within the circuit. The ground point should be
chosen to minimize noise or other undesirable interactions.
3. Connect other end of output cable to
input terminals of recorder or other
current-actuated device, making sure
polarity is correct. If two or more current-actuated devices are used, they
7003D
Monitor
Potentiometric
Recorder
Voltage Divide
(Customer Supplied)
Input
Terminals
(Verify pol arity
is correct )
Position of Recorder Outpu t
Selector Plu g
10 mV 1K Ohm
100 mV 10K Ohm
1 V 100K Ohm
5 V 2K Ohm
Min i mum Per missible Re si stance for
R1 + R2
Figure 2-2. Connections for Potentiometric Recorder with Non-Standard Span
Rosemount Analytical Inc. A Division of Emerson Process Management Installation 2-3
Instruction Manual
748054-L
May 2003
Model 7003D
7003D
Monitor
Figure 2-3. Typical Example of Oxygen Monitor Connected in Series with Several Current Actuated
mA
+
-
+
-
+
-
+
-
Recorder
Controller
Remote
Indicator
Devices
e. Output Connections for Alarms
Alarm Output Connections
The alarm output provides two sets of relay contacts for actuation of alarm and/or
process-control functions. Leads from the
customer-supplied external alarm system
connect to terminal block TB4 on the
power supply board. See Figure 2-1 on
page 2-2 and drawing 622228.
If the alarm contacts are connected to any
device that produces radio frequency interference (RFI), it should be
arc-suppressed. Accessory Arc Suppressor is recommended. When possible, the
oxygen monitor should operate on a different AC power source, to minimize RFI.
Alarm Relay Characteristics
The HI ALARM and LO ALARM outputs
are provided by two identical single-pole
double-throw relays. Relay contacts are
rated at (resistive load):
3 A, 250 VAC
3 A, 30 VDC
Removal of AC power from the analyzer,
as in a power failure, de-energizes both
relays.
HI ALARM Relay
The HI ALARM relay coil is energized
when the display moves upscale through
the value that corresponds to the setpoint
plus deadband. This relay coil is
de-energized when display moves downscale through the value that corresponds
to setpoint minus deadband.
LO ALARM Relay
The LO ALARM relay coil is energized
when the display moves downscale
through the value that corresponds to
setpoint minus deadband. This relay coil
is de-energized when the display moves
upscale through the value that corresponds to setpoint plus deadband.
Alarm Reset
The HI ALARM and LO ALARM functions
both incorporate automatic reset. When
the meter reading goes beyond the preselected limits, the corresponding relay is
energized; when the meter reading returns within the acceptable range, the relay is automatically de-energized.
2-4 Installation Rosemount Analytical Inc. A Division of Emerson Process Management
Loading...