Emerson Rosemount Oxymitter 4000 User manual

Reference Manual
00809-0100-4340
Rev AA
July 2018
RosemountTM Oxymitter 4000
Hazardous Area Oxygen Transmitter
Instruction Manual
IM-106-340C, Rev 6.2
Apr 2015
Oxymitter 4000 Hazardous Area
Oxygen Transmitter
http://www.raihome.com

Rosemount Oxymitter 4000 July 2018
2Table of Contents
Contents
Essential Instructions .......................................... 9
Preface ............................................................ 10
Denitions ........................................................ 11
Symbols............................................................ 11
Note to Users .................................................... 11
Description and Specications .......................... 12
Components Checklist ......................................................12
System Overview ..............................................................12
Scope ...............................................................................................................12
System Description ..........................................................................................14
System Conguration.......................................................................................15
System Features ...............................................................................................16
System Considerations .....................................................................................19
IMPS 4000 (Optional) .......................................................................................22
SPS 4001B (Optional) .......................................................................................22
MODEL 751 Remote Powered Loop LCD Display ...............................................22
Probe Options ...................................................................23
Diffusion Elements ...........................................................................................23
Abrasive Shield Assembly .................................................................................24
Specications....................................................................26
O2 Range ..........................................................................................................26
Temperature Limits ..........................................................................................26
Probe Lengths ..................................................................................................26
Mounting and Mounting Position .....................................................................26
Materials ..........................................................................................................26
Calibration Gas Mixtures...................................................................................26
Recommended Calibration Gas Flow ................................................................26
Pollution Degree ..............................................................................................27
Over Voltage Category .....................................................................................27
Relative Humidity.............................................................................................27
Signals..............................................................................................................27
Power Requirements ........................................................................................27
Certications.....................................................................27
Hazardous Area Oxymitter 4000 with Integral Electronics with Process End Flame
Arrestor ...........................................................................................................27
Hazardous Area Oxymitter with Remote Electronics with Process End Flame Ar-
restor ...............................................................................................................27
Hazardous Area Oxymitter 4000 with Integral Electronics without Process End
Flame Arrestor .................................................................................................28
Hazardous Area Oxymitter with Remote Electronics without Process End Flame
Arrestor ...........................................................................................................28
ATEX/IECEx Special Conditions for Safe Use ......................................................28
CSA Special Conditions for Safe Use..................................................................29

Rosemount Oxymitter 4000
July 2018
3
Table of Contents
Installation........................................................ 37
Mechanical Installation......................................................38
Selecting Location............................................................................................38
Probe Installation .............................................................................................38
Remote Electronics Installation ........................................................................46
Electrical Installation with Integral Electronics...................46
Connect Line Voltage .......................................................................................47
Electrical Installation with Remote Electronics...................49
Connect Line Voltage .......................................................................................50
4-20 mA Signal.................................................................................................50
World Class 3000 Intelligent Field Transmitter Setup ........................................53
The Yokogawa ZA8C and AV8C Convertor Electronics setup.............................54
Pneumatic installation.......................................................56
Reference Air Package ......................................................................................56
Calibration Gas.................................................................................................57
IMPS 4000 connections.....................................................57
SPS 4001B connections.....................................................57
Conguration of Hazardous Area Oxymitter 4000
with Membrane Keypad .................................... 58
Verify Installation ..............................................................58
Mechanical Installation.....................................................................................58
Terminal Block Wiring.......................................................................................58
Hazardous Area Oxymitter 4000 Conguration ................................................59
Recommended Conguration ..........................................................................63
Conguration of Hazardous Area Oxymitter 4000
with LOI ............................................................ 65
Verify Installation ..............................................................65
Mechanical Installation.....................................................................................65
Terminal Block Wiring.......................................................................................65
Hazardous Area Oxymitter 4000 Conguration ................................................66
Logic I/O...........................................................................................................68
Recommended Conguration ..........................................................................70
Startup and Operation of Hazardous Area Oxymit-
ter 4000 with Membrane Keypad ...................... 71
Power Up ..........................................................................71
Startup Display.................................................................................................71
Operating Display.............................................................................................71
Error.................................................................................................................72
Keypad .............................................................................................................72
Reference Air....................................................................................................72
Operation..........................................................................72
Overview..........................................................................................................72

Rosemount Oxymitter 4000 July 2018
4Table of Contents
Startup and Operation of Hazardous Area Oxymitter
4000 with LOI ................................................... 75
Power Up ..........................................................................75
Startup Display.................................................................................................75
Operating Display.............................................................................................75
Error.................................................................................................................75
LOI ...................................................................................................................75
Reference Air....................................................................................................75
Startup Oxymitter 4000 Calibration ..................................77
Navigating the Local Operator Interface ............................77
Overview..........................................................................................................77
Lockout ............................................................................................................77
LOI Key Designations.........................................................78
LOI Menu Tree ...................................................................78
Hazardous Area Oxymitter 4000 Setup at the LOI..............80
SYSTEM/Calibration Setup................................................................................80
O2Reset Values.................................................................................................81
O2 Output Tracks .............................................................................................81
O2 Cal Interval..................................................................................................81
O2 Next Cal......................................................................................................81
Gas Time ..........................................................................................................81
Purge Time.......................................................................................................81
Auto Calib?.......................................................................................................81
SYSTEM/Input/Output......................................................................................81
SYSTEM/Parameters..........................................................82
O2Slope ...........................................................................................................82
O2 Constant.....................................................................................................82
O2 T90 Time ....................................................................................................82
Auto Tune.........................................................................................................82
Lockout Time ...................................................................................................82
Revert Time......................................................................................................82
Luminance .......................................................................................................82
SYSTEM/Status..................................................................83
Alarms..............................................................................................................83
PID Parameter ..................................................................................................83
Reset Device.....................................................................................................83
SYSTEM/Software ............................................................................................83
Sensor Data......................................................................................................83
Temperatures...................................................................................................83
LOI Installation .................................................................................................83
Oxymitter 4000 Test Points ...............................................84
Remote Powered Loop LCD Display (Optional)...................84

Rosemount Oxymitter 4000
July 2018
5
HART/AMS........................................................ 85
Overview...........................................................................85
HART Communicator Signal Line Connections ..................86
Method 1, For Load Resistance ≥ 250 Ohms......................................................86
Method 2, For Load Resistance < 250 ohms ......................................................86
HART Communicator PC Connections...............................88
Off-line and On-line Operations.........................................88
Logic I/O Congurations....................................................89
HART/AMS Menu Tree .......................................................89
HART Communicator O2Cal Method.................................93
HART Communicator O2Cal Method.................................94
D/A Trim Procedure...........................................................95
LOI Menu..........................................................................................................95
Troubleshooting ............................................... 96
Overview...........................................................................96
General .............................................................................98
Grounding........................................................................................................98
Electrical Noise.................................................................................................98
Loose Integrated Circuits..................................................................................98
Electrostatic Discharge.....................................................................................98
Alarm Indications ..............................................................98
Alarm Contacts .................................................................99
SPS 4001B and IMPS 4000, 1-4 probes............................................................100
Additional IMPS 4000 Alarm Contacts ............................................................100
Identifying and Correcting Alarm Indications ..................100
Fault 1, Open Thermocouple ..........................................................................102
Fault 2, Shorted Thermocouple ......................................................................104
Fault 3, Reversed Thermocouple Wiring or Faulty PC Board ............................106
Fault 4, A/D Comm Error.................................................................................108
Fault 4, Open Heater.......................................................................................110
Fault 6, High High Heater Temp ......................................................................112
Fault 7, High Case Temp .................................................................................114
Fault 8, Low Heater Temp ...............................................................................116
Fault 9, High Heater Temp ..............................................................................118
Fault 10, High Cell mV ....................................................................................120
Fault 11, Bad Cell ............................................................................................122
Fault 12, EEprom Corrupt ...............................................................................124
Fault 13, Invalid Slope.....................................................................................126
Fault 14, Invalid Constant ...............................................................................128
Fault 15, Last Calibration Failed.......................................................................130
Heater not open, but unable to reach 1357 °F (736 °C) set-
point ...............................................................................132

Rosemount Oxymitter 4000 July 2018
6
Calibration passes, but still reads incorrectly ...................132
Probe passes calibration, but still appears to read high ...................................132
Probe passes calibration, but still appears to read low.....................................133
How do I detect a plugged diffuser? ...............................................................133
Calibration Record for Rosemount In-Situ O2Probe .........134
Maintenance and Service ................................ 135
Overview.........................................................................135
Calibration with Keypad ..................................................135
Automatic Calibration ....................................................................................136
Semi-Automatic Calibration ...........................................................................137
Manual Calibration with Membrane Keypad ...................................................138
Calibration with LOI........................................................................................140
Hazardous Area Oxymitter 4000 Repair...........................141
Removal and Replacement of Probe ................................142
Electronic Assembly Replacement ..................................................................146
Terminal Block Replacement...........................................................................148
Fuse Replacement ..........................................................................................148
Entire Probe Replacement (Excluding Electronics) ..........................................149
Heater Strut Replacement ..............................................................................150
Cell Replacement............................................................................................152
Ceramic Diffusion Element Replacement ........................................................155
Replacement Parts .......................................... 158
Probe replacement parts.................................................158
Electronics replacement parts .........................................161
Upgrading Oxymitter DR to Full Oxymitter...... 162
A-1 Upgrade procedure...................................................162
A-2 Notes ........................................................................164
Optional Accessories....................................... 165
By-Pass Packages.............................................................165
IMPS 4000 Intelligent Multiprobe Test Gas Sequencer .....166
SPS 4001 Single Probe Autocalibration Sequencer...........167
O2Calibration Gas ...........................................................168
Safety Data ..................................................... 169
Warranty ........................................................ 194

Rosemount Oxymitter 4000
July 2018
7
Essential Instructions
If a Model 275/375 Universal HART® Communicator is used with this unit, the software
within the Model 275/375 may require modication. If a software modication is required,
please contact your local Emerson Service Group or National Response Center at 1-800-433-
6076 or 1-888-433-6829.
Oxymitter Oxygen Transmitters
READ THIS PAGE BEFORE PROCEEDING!
Essential Instructions
Emerson 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 to ensure they continue to
operate within their normal specications. The following instructions MUST be adhered to
and integrated into your safety program when installing, using, and maintaining Emerson’s
Rosemount 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 warran-
ty invalidation.
• Read all instructions prior to installing, operating, and servicing the product.
• If you do not understand any of the instructions, contact your Emerson Process Man-
agement representative for clarication.
• Follow all warnings, cautions, and instructions marked on and supplied with the prod-
uct.
• Inform and educate your personnel in the proper installation, operation, and mainte-
nance of the product.
• Install your equipment as specied 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 qualied personnel to install, operate, update,
program, and maintain the product.
• When replacement parts are required, ensure that qualied people use replacement
parts specied by Emerson. Unauthorized parts and procedures can affect the prod-
uct’s performance, place the safe operation of your process at risk, and VOID YOUR
WARRANTY. Look-alike substitutions may result in re, 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 qualied persons, to prevent electrical shock
and personal injury.
The information contained in this document is subject to change without notice.
CAUTION

Rosemount Oxymitter 4000 July 2018
8Essential Instructions
• Installation and servicing of this product may expose personel to dangerous
voltages.
• Main power wired to separate power source must be disconnected before
servicing.
• Do not operate or energize instrument with case open!
• Proper use and conguration is the responsibility of the user.
• The HART option is not protected by energy limiting barriers. It must not be
interfaced from within the hazardous area. The 4-20 mA cables should be routed
and the connections made outside the hazardous area. Note that this is the case
even when using the intrinsically safe version of the hand-held communicator.
• The Hazardous Area Oxymitter 4000 and probe abrasive shield are heavy. Use
proper lifting and carrying procedures to avoid personal injury.
• Install all protective equipment covers and safety ground leads after installation.
Failure to install covers and ground leads could result in serious injury or death.
• Disconnect and lock out power before connecting the unit to the power supply.
• Install all protective equipment covers and safety ground leads after installation.
Failure to install covers and ground leads could result in serious injury or death.
• To meet the Safety Requirements of IEC 61010 (EC requirement), and ensure
safe operation of this equipment, connection to the main electrical power
supply must be made through a circuit breaker (min 10 A) which will disconnect
all current-carrying conductors during a fault situation. This circuit breaker
should also include a mechanically operated isolating switch. If not, then
another external means of disconnecting the supply from the equipment should
be located close by. Circuit breakers or switches must comply with a recognized
standard such as IEC 60947.
• The probe and probe abrasive shield are heavy. Use proper lifting and carrying
procedures to avoid personnel injury.
• To maintain explosion-proof protection, all cable entry devices and blanking
elements for unused apertures must be certied ameproof, suitable for the
conditions of use and be properly installed.
• If using an IMPS 4000 or an SPS 4001B, install it in a non-hazardous,
explosive-free environment.
• DO NOT OPEN WHILE ENERGIZED
• DO NOT OPEN WHEN AN EXPLOSIVE ATMOSPHERE MAY BE PRESENT
• Cable entry devices and blanking elements must be certied Ex d, rated for ≥
110ºC
• Process temperature at mounting ange location shall not exceed 115° C
• Non-ame arrestor probe versions “NF” must have the probe tube mounted in a
Safe Area
• AC wiring must at least rated for 240VAC, 14 gauge
Preface The purpose of this manual is to provide information concerning the components, func-
tions, installation and maintenance of the Oxymitter 4000 Hazardous Area Oxygen Trans-
mitter.
Some sections may describe equipment not used in your conguration. The user should
become thoroughly familiar with the operation of this module before operating it. Read
this instruction manual completely.
WARNING RISK OF ELECTRICAL SHOCK

Rosemount Oxymitter 4000
July 2018
9
Essential Instructions
Denitions
The following denitions apply to WARNINGS, CAUTIONS, and NOTES found throughout
this publication.
Note to Users
The number in the lower right corner of each illustration in this publication is a manual
illustration number. It is not a part number, and is not related to the illustration in any
technical manner.
Substitution of components may impair suitability and may result in re, electrical
hazards, or improper operation.
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.
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.
Highlights an essential operating procedure, condition, or statement.
WARNING
WARNING
CAUTION
NOTE
:
:
:
:
:
Symbols

Rosemount Oxymitter 4000 July 2018
10 Description and Components
Description and Specications
Components Checklist
A typical Rosemount Hazardous Area Oxymitter 4000 Oxygen Transmitter
should contain the items shown in Figure 1-1. Record the part number, serial number,
and order number for each component of your system in the table located on the rst
page of this manual.
Also, use the product matrix in Table 1-1 at the end of this section to compare your order
number against your unit. The rst part of the matrix denes the model. The last part
denes the various options and features of the Hazardous Area Oxymitter 4000. Ensure
the features and options specied by your order number are on or included with the unit.
System Overview
A typical Rosemount Hazardous Area Oxymitter 4000 Oxygen Transmitter
should contain the items shown in Figure 1-1. Record the part number, serial number,
and order number for each component of your system in the table located on the rst
page of this manual.
Scope
This Instruction Manual provides the information needed to install, start up, operate,
and maintain the Hazardous Area Oxymitter 4000. Signal conditioning electronics
outputs a 4-20 mA signal representing an O2value and provides a membrane keypad or
full function Local Operator Interface (LOI) for setup, calibration, and diagnostics. This
same information, plus additional details, can be accessed with the HART Model 275/375
handheld communicator or Asset Management Solutions (AMS) software.
The Oxymitter 4000 is offered in both hazardous area and general purpose congura-
tions. The hazardous area version has special markings on the approval label. The general
purpose does not. If you received the general purpose version, ensure you do not install it
in a potentially explosive atmosphere.
WARNING

Rosemount Oxymitter 4000
July 2018
11
Description and Components
Instruction
Manual
IM-106-340C, Rev. 6.2
Apr 2015
Hazardous
Area
Oxymitter
4000
1-2
38860067
Figure 1-1. Typical System
Package
1
8
2
3
7
4
MAN 427 5A00
English
October 1994
HART Communica tor
o
FISHER-R OSEMOUNT
TM
5
6
1. Instruction Manual
2. IMPS 4000 Intelligent Multiprobe Test Gas Sequencer (Optional)
3. Hazardous Area Oxymitter 4000 with Integral Electronics
4. SPS 4001B Single Probe Autocalibration Sequencer (Optional) (Safe area only)
5. HART¨ Communicator Package, Model 375 (Optional)
6. Mounting Plate with Mounting Hardware and Gasket
7. Hazardous Area Oxymitter 4000 with Remote Electronics (Optional)
8. Reference Air Set (used if SPS 4001B without reference air option or IMPS 4000 not supplied)
Figure 1-1. Typical System Package
1. Instruction Manual
2. IMPS 4000 Intelligent Multiprobe Test Gas Sequencer (optional)
3. Hazardous Area Oxymitter 4000 with integral electronics
4. SPS 4001B Single Probe Autocalibration Sequencer (optional) (safe area only)
5. HART® Communicator Package, Model 475 (optional)
6. Mounting Plate with mounting hardware and gasket
7. Hazardous Area Oxymitter 4000 with remote electronics (optional)
8. Reference Air Set (used if SPS 4001B without reference air option or IMPS 4000 not supplied)

Rosemount Oxymitter 4000 July 2018
12 Description and Components
System Description
The Hazardous Area Oxymitter 4000 is designed to measure the net concentration of
oxygen in an industrial process; i.e., the oxygen remaining after all fuels have been
oxidized. The probe is permanently positioned within an exhaust duct or stack and
performs its task without the use of a sampling system.
The equipment measures oxygen percentage by reading the voltage developed across a
heated electrochemical cell, which consists of a small yttria-stabilized, zirconia disc. Both
sides of the disc are coated with porous metal electrodes. When operated at the proper
temperature, the millivolt output voltage of the cell is given by the following Nernst
equation:
EMF = KT log10(P1/P2) + C
Where:
• P2 is the partial pressure of the oxygen in the measured gas on one side of the cell.
• P1 is the partial pressure of the oxygen in the reference air on the opposite side of
the cell.
• T is the absolute temperature.
• C is the cell constant.
• K is an arithmetic constant.
When the cell is at operating temperature and there are unequal oxygen concentrations
across the cell, oxygen ions will travel from the high oxygen partial pressure side to the
low oxygen partial pressure side of the cell. The resulting logarithmic output voltage is
approximately 50 mV per decade. The output is proportional to the inverse logarithm of
the oxygen concentration. Therefore, the output signal increases as the oxygen
concentration of the sample gas decreases. This characteristic enables the Hazardous
Area Oxymitter 4000 to provide exceptional sensitivity at low oxygen concentrations.
The Hazardous Area Oxymitter 4000 measures net oxygen concentration in the presence
of all the products of combustion, including water vapor. Therefore, it may be considered
an analysis on a “wet” basis. In comparison with older methods, such as the portable
apparatus, which provides an analysis on a “dry” gas basis, the “wet” analysis will, in
general, indicate a lower percentage of oxygen. The difference will be proportional to the
water content of the sampled gas stream.
For best results, use clean, dry, instrument air (20.95% oxygen) as the reference air.
NOTE

Rosemount Oxymitter 4000
July 2018
13
Description and Components
Figure 1-2. Hazardous Area Oxymitter 4000 Autocalibration System Options
System Conguration
Hazardous Area Oxymitter 4000 units are available in three length options, giving the
user the exibility to use an in situ penetration appropriate to the size of the stack or
duct. The options on length are 457 mm (18 in.), 0.91 m (3 ft), and 1.83 m (6 ft). The
18 in. probe weighs 29 lbs, 3 ft probe weighs 34 lbs and 6 ft weighs 44 lbs.
The electronics control probe temperature and provide an isolated output, 4-20 mA, that
is proportional to the measured oxygen concentration. The power supply can accept
voltages of 90-250 VAC and 48/62 Hz; no setup procedures are required. The oxygen
sensing cell is maintained at a constant temperature by modulating the duty cycle of
the probe heater portion of the electronics. The electronics accepts millivolt signals
generated by the sensing cell and produces the outputs to be used by remotely
connected devices. The output is an isolated 4-20 mA linearized current.
The Oxymitter 4000 transmitter is available with an integral or remote electronics
package. Two calibration gas sequencers are available to the Hazardous Area Oxymitter
4000, but they must be installed in a nonhazardous, explosive-free environment: the
IMPS 4000 and the SPS 4001B (Figure 1-2).
Systems with multiprobe applications may employ an optional IMPS 4000 Intelligent
Multiprobe Test Gas Sequencer. The IMPS 4000 provides automatic calibration gas
sequencing for up to four Hazardous Area Oxymitter 4000 units and accommodates
autocalibrations based on the CALIBRATION RECOMMENDED signal from the Hazardous
Area Oxymitter 4000, a timed interval set up in HART or the IMPS 4000, or whenever a
calibration request is initiated.
Instruction
Manual
IM-106-340C, Rev. 6.2
Apr 2015
Hazardous
Area
Oxymitter
4000
1-4
38860068
System Configuration Hazardous Area Oxymitter 4000 units are available in three length options,
giving the user the flexibility to use an in situ penetration appropriate to the
size of the stack or duct. The options on length are 457 mm (18 in.), 0.91 m (3
ft), and 1.83 m (6 ft). The 18 in. probe weighs 29 lbs, 3 ft probe weighs 34 lbs
and 6 ft weighs 44 lbs.
The electronics control probe temperature and provide an isolated output,
4-20 mA, that is proportional to the measured oxygen concentration. The
power supply can accept voltages of 90-250 VAC and 48/62 Hz; no setup
procedures are required. The oxygen sensing cell is maintained at a constant
temperature by modulating the duty cycle of the probe heater portion of the
electronics. The electronics accepts millivolt signals generated by the sensing
cell and produces the outputs to be used by remotely connected devices. The
output is an isolated 4-20 mA linearized current.
The Oxymitter 4000 transmitter is available with an integral or remote
electronics package. Two calibration gas sequencers are available to the
Hazardous Area Oxymitter 4000, but they must be installed in a
nonhazardous, explosive-free environment: the IMPS 4000 and the SPS
4001B (Figure 1-2).
Systems with multiprobe applications may employ an optional IMPS 4000
Intelligent Multiprobe Test Gas Sequencer. The IMPS 4000 provides
automatic calibration gas sequencing for up to four Hazardous Area Oxymitter
4000 units and accommodates autocalibrations based on the CALIBRATION
RECOMMENDED signal from the Hazardous Area Oxymitter 4000, a timed
interval set up in HART or the IMPS 4000, or whenever a calibration request
is initiated.
Figure 1-2. Hazardous Area
Oxymitter 4000 Autocalibration
System Options
HAZARDOUS AREA
OXYMITTER 4000
IMPS 4000
(1 to 4 Probes)
(Must be installed
in a safe area
or be X- or Z-purged
by the customer)
SPS 4001B
(1 Probe)
(Must be installed
in a safe area)

Rosemount Oxymitter 4000 July 2018
14 Description and Components
Figure 1-3. Membrane Keypad
For systems with one or two Hazardous Area Oxymitter 4000 units per combustion
process, an optional SPS 4001B Single Probe Autocalibration Sequencer can be used with
each Hazardous Area Oxymitter 4000 to provide automatic calibration gas sequencing.
The sequencer performs autocalibrations based on the CALIBRATION RECOMMENDED
signal from the Hazardous Area Oxymitter 4000, a timed interval set up in HART, or
whenever a calibration request is initiated.
System Features
The cell output voltage and sensitivity increase as the oxygen concentration decreases.
The HART option is not protected by energy limiting barriers. It must not be interfaced
from within the hazardous area. The 4-20 mA cables should be routed and the
connections made outside the hazardous area. Note that this is the case even when using
the intrinsically safe version of the hand-held communicator
Membrane keypad Figure 1-3 and HART communication are standard. To use the HART
capability, you must have either:
• HART Model 475 Communicator.
• Asset Management Solutions (AMS) software for the PC.
WARNING
Instruction
Manual
IM-106-340C, Rev. 6.2
Apr 2015
Hazardous
Area
Oxymitter
4000
1-5
INC
CAL
TEST GAS
LOW
GAS
DEC
PROCESS
38860027
For systems with one or two Hazardous Area Oxymitter 4000 units per
combustion process, an optional SPS 4001B Single Probe Autocalibration
Sequencer can be used with each Hazardous Area Oxymitter 4000 to provide
automatic calibration gas sequencing. The sequencer performs
autocalibrations based on the CALIBRATION RECOMMENDED signal from
the Hazardous Area Oxymitter 4000, a timed interval set up in HART, or
whenever a calibration request is initiated.
System Features
The cell output voltage and sensitivity increase as the oxygen concentration
decreases.
The HART option is not protected by energy limiting barriers. It must not be interfaced from
within the hazardous area. The 4-20 mA cables should be routed and the connections made
outside the hazardous area. Note that this is the case even when using the intrinsically safe
version of the hand-held communicator
Figure 1-3. Membrane Keypad
DIAGNOSTIC
ALARMS
HEATER T/C
HEATER
02 CELL
CALIBRATION
CALIBRATION RECOMMENDED
02 CELL mV +
TEST
POINTS
02 CELL mv -
HEATER T/C +
HEATER T/C -
INC
HIGH
GAS
DEC
+
-
% 02
Membrane
Keypad
Membrane keypad Figure 1-3 and HART communication are standard. To use
the HART capability, you must have either:
• HART Model 275/375 Communicator.
• Asset Management Solutions (AMS) software for the PC.

Rosemount Oxymitter 4000
July 2018
15
Description and Components
Figure 1-4. Local Operator Interface (LOI)
An optional Local Operator Interface Figure 1-4 allows continual O2display and full
interface capability.
Field replaceable cell, heater, thermocouple, diffuser, and PC boards.
The Hazardous Area Oxymitter 4000 is constructed of rugged 316L stainless steel for all
wetted parts.
The electronics is adaptable for line voltages from 90-250 VAC; therefore, no
conguration is necessary.
The Hazardous Area Oxymitter 4000 membrane keypad is available in ve languages:
English, French, German, Italian, and Spanish.
An operator can calibrate and communicate with the Hazardous Area
Oxymitter 4000 in one of three ways:
Instruction
Manual
IM-106-340C, Rev. 6.2
Apr 2015
Hazardous
Area
Oxymitter
4000
1-6
Figure 1-4. Local Operator
Interface (LOI)
An optional Local Operator Interface Figure 1-4 allows continual O2 display
and full interface capability.
Field replaceable cell, heater, thermocouple, diffuser, and PC boards.
The Hazardous Area Oxymitter 4000 is constructed of rugged 316L stainless
steel for all wetted parts.
The electronics is adaptable for line voltages from 90-250 VAC; therefore, no
configuration is necessary.
The Hazardous Area Oxymitter 4000 membrane keypad is available in five
languages: English, French, German, Italian, and Spanish.
An operator can calibrate and communicate with the Hazardous Area
Oxymitter 4000 in one of three ways:

Rosemount Oxymitter 4000 July 2018
16 Description and Components
Membrane Keypad
The membrane keypad, housed within the right side of the electronics housing, provides
fault indication by way of ashing LEDs. Calibration can be performed from the
membrane keypad.
Local Operator Interface (LOI)
The optional LOI takes the place of the membrane keypad and allows local
communication with the electronics. Refer to Section 4, Conguration of Hazardous Area
Oxymitter 4000 with LOI for more information.
Optional HART Interface
The Hazardous Area Oxymitter 4000’s 4-20 mA output line transmits an analog signal
proportional to the oxygen level. The HART output is superimposed on the 4-20 mA
output signal. This information can be accessed through the following:
• Rosemount Model 275/375 Handheld Communicator - The handheld
communicator requires Device Description (DD) software specic to the
Hazardous Area Oxymitter 4000. The DD software will be supplied with many
Model 275/375 units but can also be programmed into existing units at most
Emerson service ofces. See Section 7, HART/AMS for
additional information.
• Personal Computer (PC) - The use of a personal computer requires AMS software
available from Emerson.
• Selected Distributed Control Systems - The use of distributed control systems
requires input/output (I/O) hardware and AMS software which permit HART
communications.
Optional IMPS 4000
The Programmable Logic Controller (PLC) in the IMPS 4000 provides fault indications
using ashing LEDs and LCD display messages. Refer to the IMPS 4000 Intelligent
Multiprobe Test Gas Sequencer manual for more information.
The optional Rosemount 751 remote mounted LCD display panel is loop driven
by the 4-20 mA output signal representing the O2 percentage.
Accessing the probe keypad requires opening the electronics housing. Opening the
electronics housing will cause the loss of ALL hazardous permits. Opening the
electronics housing in hazardous areas may cause an explosion resulting in loss of
property, severe personal injury, or death. It may be required to get a hot work permit
from your company safety ofcer before opening the electronic housing.
The HART option is not protected by energy limiting barriers. It must not be interfaced
from within the hazardous area. The 4-20 mA cables should be routed and the
connections made outside the hazardous area. Note that this is the case even when using
the intrinsically safe version of the hand-held communicator.
CAUTION
WARNING

Rosemount Oxymitter 4000
July 2018
17
Description and Components
Figure 1-5. Hazardous Area Oxymitter 4000
HART Connections and AMS Application
System Considerations
Prior to installing your Hazardous Area Oxymitter 4000, make sure you have all the
components necessary to make the system installation. Ensure all the components are
properly integrated to make the system functional.
After verifying that you have all the components, select mounting locations and
determine how each component will be placed in terms of available line voltage,
ambient temperatures, environmental considerations, convenience, and serviceability.
Figure 1-5 shows a typical system wiring.
A typical system installation with integral electronics is illustrated in Figure 1-6. A typical
system installation with remote electronics is illustrated in Figure 1-7.
Handling the Oxymitter
It is important that printed circuit boards and integrated circuits are handled only
when adequate antistatic precautions have been taken to prevent possible equip-
ment damage.
The Hazardous Area Oxymitter 4000 is designed for industrial applications. Treat
each component of the system with care to avoid physical damage. Some probe
components are made from ceramics, which are susceptible to shock when mishan-
dled.
The HART option is not protected by energy limiting barriers. It must not be inter-
faced from within the hazardous area. The 4-20 mA cables should be routed and the
connections made outside the hazardous area. Note that this is the case even when
usingthe intrinsically safe version of the hand-held communicator.
CAUTION
WARNING
Instruction
Manual
IM-106-340C, Rev. 6.2
Apr 2015
Hazardous
Area
Oxymitter
4000
1-8
38860001
Handling the Oxymitter
It is important that printed circuit boards and integrated circuits are handled only when
adequate antistatic precautions have been taken to prevent possible equipment damage.
The Hazardous Area Oxymitter 4000 is designed for industrial applications. Treat each
component of the system with care to avoid physical damage. Some probe components are
made from ceramics, which are susceptible to shock when mishandled.
System Considerations Prior to installing your Hazardous Area Oxymitter 4000, make sure you have
all the components necessary to make the system installation. Ensure all the
components are properly integrated to make the system functional.
After verifying that you have all the components, select mounting locations
and determine how each component will be placed in terms of available line
voltage, ambient temperatures, environmental considerations, convenience,
and serviceability. Figure 1-5 shows a typical system wiring.
A typical system installation with integral electronics is illustrated in
Figure 1-6. A typical system installation with remote electronics is illustrated in
Figure 1-7.
The HART option is not protected by energy limiting barriers. It must not be interfaced from
within the hazardous area. The 4-20 mA cables should be routed and the connections made
outside the hazardous area. Note that this is the case even when using the intrinsically safe
version of the handheld communicator.
Figure 1-5. Hazardous Area
Oxymitter 4000 HART
Connections and AMS
Application
Hazardous Area
Oxymitter 4000
with Integral Electronics
4-20 mA Output
(Twisted Pairs)
HART
Model 275/375
Handheld
Interface
2 Calibration Gas Lines
by Customer
[90 m (300ft) max]
Line Voltage
Termination in
Control Room
Asset Management Solutions

Rosemount Oxymitter 4000 July 2018
18 Description and Components
Figure 1-6. Typical System Installation –
Oxymitter 4000 with Integral Electronics
Instruction
Manual
IM-106-340C, Rev. 6.2
Apr 2015
Hazardous
Area
Oxymitter
4000
1-9
38860069
Figure 1-6. Typical System
Installation Ð Oxymitter 4000
with Integral Electronics
Gases STANDARD
Stack
Duct
Oxymitter
4000 Adapter
Plate
Line
Voltage Instrument
Air Supply
(Reference Air)
Logic I/O
4 to 20 mA
Flowmeter Pressure
Regulator IMPS 4000*
Signal Calibration
Gas
Gases
MULTIPROBE
AUTOCALIBRATION
OPTION
Duct
Stack
SPS 4001B* SINGLE PROBE
AUTOCALIBRATION OPTION
(WITH REFERENCE AIR OPTION)
Gases
Adapter
Plate
Oxymitter
4000
Line
Voltage
Calibration
Gas
Stack
Duct 4 to 20 mA
Signal Logic I/O Reference
Air
Adapter Plate IMPS 4000
Oxymitter
4000
Calibration Gas
*Note: The IMPS 4000 or SPS 4001B must
be installed in a non-hazardous,
explosive-free environment.
Line Voltage
4 to 20 mA
Signal
Logic I/O
Reference
Air
SPS 4001B

Rosemount Oxymitter 4000
July 2018
19
Description and Components
Figure 1-7. Typical System Installation –
Oxymitter 4000 with Remote Electronics
Instruction
Manual
IM-106-340C, Rev. 6.2
Apr 2015
Hazardous
Area
Oxymitter
4000
1-10
38860070
Figure 1-7. Typical System
Installation Ð Oxymitter 4000
with Remote Electronics
Gases STANDARD
Duct
Stack
Oxymitter 4000
Adapter Plate
Remote
Electronics
Flowmeter
Instrument
Air Supply
(Reference Air)
Logic I/O
4 to 20 mA
Signal
Line
Voltage
Calibration
Gas
Pressure
Regulator
Gases
IMPS 4000*
MULTIPROBE
AUTOCALIBRATION
OPTION
Duct
Stack
Adapter Plate
Oxymitter 4000
Calibration Gas
SPS 4001B* SINGLE PROBE
AUTOCALIBRATION OPTION
(WITH REFERENCE AIR OPTION)
Gases
Remote
Electronics
Reference Air
Stack
Adapter Plate
Oxymitter
4000
Duct
Calibration Gas
Reference Air
Line Voltage
Logic I/O
4 to 20 mA
Signal
Line Voltage
IMPS 4000
Remote
Electronics
*Note: The IMPS 4000 or SPS 4001B must
be installed in a non-hazardous,
explosive-free environment.
Line Voltage
4 to 20 mA
Signal
Logic I/O
Line Voltage
SPS 4001B

Rosemount Oxymitter 4000 July 2018
20 Description and Components
IMPS 4000 (Optional)
If using an IMPS 4000 with a Hazardous Area Oxymitter 4000, the IMPS 4000 sequencer
must be installed in a non-hazardous, explosive-free environment.
For further IMPS 4000 information, refer to the IMPS 4000 Intelligent Multiprobe Test Gas
Sequencer Instruction Manual.
SPS 4001B (Optional)
If using an SPS 4001B with a Hazardous Area Oxymitter 4000, the SPS 4001B sequencer
must be installed in a non-hazardous, explosive-free environment.
For further SPS 4001B information, refer to the SPS 4001B Single Probe Autocalibration
Sequencer Instruction Manual.
MODEL 751 Remote Powered Loop LCD Display
The display, Figure 1-8, provides a simple, economical means to obtain accurate, reliable,
and remote indication of important process variables. This display operates on the 4-20
mA line from the Hazardous Area Oxymitter 4000.
Refer to Model 751 remote powered loop LCD manual for calibration and wiring.
A source of instrument air is optional at the Hazardous Area Oxymitter 4000 for reference
air use. Since the unit can be equipped with an in-place calibration feature, provisions can
be made to permanently connect calibration gas bottles to the Hazardous Area
Oxymitter 4000.
If the calibration gas bottles will be permanently connected, a check valve is required
next to the calibration ttings on the integral electronics.
This check valve is to prevent breathing of the calibration gas line and subsequent ue
gas condensation and corrosion.
The check valve is in addition to the stop valve in the calibration gas kit and solenoid
valves in the IMPS 4000 or SPS 4001B.
The integral electronics is rated NEMA 4X (IP66) and is capable of operation at
temperatures up to 85° C (185 F).
The optional LOI is also rated for operation at temperatures up to 85°C (185° F) .The
infrared keypad functionality will deg rade at temperatures above 70° C (158° F).
Retain the original packaging for the Hazardous Area Oxymitter 4000, in case the
components are to be shipped to another site. This packaging is designed to protect
the product.
NOTE