Panametrics XMO2 User manual

XMO2-IDM
User’s manual
910-141 Rev. G

ATTENTION! This manual should be used only for XMO2 units with
the IDM User Program (Option D = 3 or 4).
For XMO2 units with the Terminal User Program (Option D = 1 or 2),
manual number 910-141A must be used.
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XMO2-IDM
Oxygen analyzer
User’s manual
910-141 Rev. G
March 2015
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Information paragraphs
Note: These paragraphs provide information that provides a
deeper understanding of the situation, but is not essential to
the proper completion of the instructions.
IMPORTANT:
These paragraphs provide information that emphasizes
instructions that are essential to proper setup of the
equipment. Failure to follow these instructions carefully may
cause unreliable performance.
CAUTION!
This symbol indicates a risk of potential minor
personal injury and/or severe damage to
the equipment, unless these instructions are
followed carefully.
WARNING!
WARNING! This symbol indicates a risk of
potential serious personal injury, unless these
instructions are followed carefully.
Safety issues
WARNING!
It is the responsibility of the user to make sure
all local, county, state and national codes,
regulations, rules and laws related to safety
and safe operating conditions are met for
each installation.
Auxiliary equipment
Local safety standards
The user must make sure that he operates all auxiliary
equipment in accordance with local codes, standards,
regulations, or laws applicable to safety.
Working area
WARNING!
Auxiliary equipment may have both manual
and automatic modes of operation. As
equipment can move suddenly and without
warning, do not enter the work cell of this
equipment during automatic operation,
and do not enter the work envelope of this
equipment during manual operation. If you
do, serious injury can result.
WARNING!
Make sure that power to the auxiliary
equipment is turned OFF and locked out
before you perform maintenance procedures
on the equipment.
Qualification of personnel
Make sure that all personnel have manufacturer-approved
training applicable to the auxiliary equipment.
Personal safety equipment
Make sure that operators and maintenance personnel have
all safety equipment applicable to the auxiliary equipment.
Examples include safety glasses, protective headgear,
safety shoes, etc.
Unauthorized operation
Make sure that unauthorized personnel cannot gain access
to the operation of the equipment.
Environmental compliance
Waste Electrical and Electronic Equipment (WEEE) directive
Panametrics is an active participant in Europe’s Waste
Electrical and Electronic Equipment (WEEE) take-back
initiative, directive 2012/19/EU.
The equipment that you bought has required the extraction
and use of natural resources for its production. It may
contain hazardous substances that could impact health
and the environment.
In order to avoid the dissemination of those substances in
our environment and to diminish the pressure on the natural
resources, we encourage you to use the appropriate take-
back systems. Those systems will reuse or recycle most of
the materials of your end life equipment in a sound way.
The crossed-out wheeled bin symbol invites you to use
those systems.
If you need more information on the collection, reuse and
recycling systems, please contact your local or regional
waste administration.
Visit https://www.bakerhughesds.com/health-safetyand-
environment-hse for take-back instructions and more
information about this initiative.
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Contents
Information paragraphs ..............................................................................v
Safety issues .........................................................................................v
Auxiliary equipment ..................................................................................v
Environmental compliance ...........................................................................v
Chapter 1. Features and capabilities .....................................................1
1.1 Introduction ......................................................................................1
1.2 Basic features ....................................................................................1
1.3 Theory of operation ...............................................................................1
1.4 System components .............................................................................4
1.4.1 The XMO2 transmitter .....................................................................................4
1.4.2 The sample system .......................................................................................5
1.4.3 Long cables (optional) ....................................................................................5
1.4.4 Power supply (optional)...................................................................................5
1.4.5 The TMO2D display/controller (optional) ..................................................................5
Chapter 2. Installation ..................................................................6
2.1 Introduction .....................................................................................6
2.2 Installing the XMO2 transmitter ..................................................................6
2.3 Installing the sample system ....................................................................6
2.3.1 A basic system ............................................................................................6
2.3.1 Wiring the XMO2 transmitter ..............................................................................7
2.3.2 CE Mark requirements. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .8
2.3.3 Grounding the XMO2 enclosure ...........................................................................8
2.3.4 Cable specifications ......................................................................................9
2.3.5 Accessing terminal Blocks TB1 and TB2....................................................................9
2.3.6 Wiring the signal connections ............................................................................11
2.4 Establishing the RS232 communication link ......................................................11
2.5 Connecting to other devices .....................................................................12
2.5.1 The PS5R-C24 power supply .............................................................................12
2.5.2 TMO2D display ...........................................................................................12
2.5.3 LDP display ...............................................................................................12
2.5.4 XDP display ..............................................................................................12
2.5.5 Moisture image/monitor series analyzers................................................................12
2.5.6 System 1 analyzer ........................................................................................12
Chapter 3. Startup and operation ...................................................... 13
3.1 Introduction .....................................................................................13
3.2 Powering Up the XMO2 transmitter ...............................................................13
3.3 Establishing a sample gas flow ..................................................................13
3.4 Analog output calibration options .............................................................. 14
3.5 Factory calibration procedures ................................................................. 14
3.6 Enhancing the factory calibration............................................................... 16
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3.7 Required calibration materials.................................................................. 16
3.8 Preparing for field calibration ................................................................... 16
3.9 One-Gas pushbutton field calibration .......................................................... 18
3.10 Two-Gas pushbutton field calibration........................................................... 18
3.10.1 Setup.....................................................................................................18
3.10.2 Zero gas pushbutton calibration.........................................................................18
3.10.3 Span gas pushbutton calibration........................................................................19
3.11 IDM Digital communication calibration ......................................................... 19
3.12 The edit functions menu ........................................................................ 19
3.13 The field cal menu ..............................................................................20
3.13.1 Perform cal..............................................................................................20
3.13.2 Configure cal ...........................................................................................20
3.13.3 Calibration drifts ........................................................................................ 22
3.13.4 Clear calibration ........................................................................................ 23
3.13.5 Hold last value .......................................................................................... 23
3.14 Changing the 4-20 mA analog output range ...................................................23
3.14.1 4-20mA range .......................................................................................... 23
3.14.2 4mA cal ................................................................................................. 23
3.14.3 20 mA cal ............................................................................................... 23
3.14.4 4-20mA test............................................................................................. 25
3.14.5 %O2 test.................................................................................................25
Chapter 4. Programming with instrument data manager ..............................27
4.1 Introduction ....................................................................................27
4.2 The edit functions menu ........................................................................27
4.2.1 The error handler menu..................................................................................27
4.2.2 Total drift error ..........................................................................................28
4.2.3 All other error conditions................................................................................28
4.3 The factory cal menu ...........................................................................28
4.3.1 Background gas labels .................................................................................28
4.3.2 Pressure compensation.................................................................................29
4.4 The advanced menu .............................................................................31
4.4.1 Fast response ........................................................................................... 32
4.4.2 Language ............................................................................................... 32
4.4.3 Meter ID .................................................................................................33
Chapter 5. Specifications ..............................................................35
5.1 Performance....................................................................................35
5.2 Functional specifications .......................................................................36
5.3 Physical specifications..........................................................................36
5.4 Optional accessories ...........................................................................37
5.5 Ordering information ...........................................................................37
5.6 Calibration specification........................................................................38
5.7 A Calibration sheet .............................................................................39
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Appendix A. Two typical applications ..................................................40
A.1 Blanketing gases in hydrocarbon liquid storage tanks ..........................................40
A.1.1 The problem ............................................................................................40
A.1.2 Equipment used. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 40
A.1.3 Basic operating procedure ..............................................................................41
A.1.4 Previous systems.........................................................................................41
A.2 Reactor feed gases in formaldehyde production ................................................42
A.2.1 The problem ............................................................................................42
A.2.2 Equipment used. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 42
A.2.3 Basic operating procedure .............................................................................43
A.2.4 Previous systems........................................................................................43
Appendix B. Outline and installation drawings .........................................44
Appendix C. IDM Menu maps ..........................................................60
Appendix D. Programming with PanaView .............................................64
D.1 Introduction ....................................................................................64
D.2 Wiring the RS232 interface ......................................................................64
D.3 Setting Up the communications port............................................................64
D.4 Adding the XMO2 ...............................................................................65
D.5 Changing meter settings .......................................................................66
Appendix E. CE Mark compliance ......................................................68
E.1 CE Mark requirements ..........................................................................68
E.2 EMI filter board..................................................................................69
E.3 Wiring the signal connections for the weatherproof version .....................................70
E.4 Wiring the signal connections for the explosion/flameproof version..............................71
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Chapter 1. Features and capabilities
1.1 Introduction
This chapter introduces you to the features and capabilities
of the Panametrics XMO2 Thermoparamagnetic Oxygen
Transmitter. The following specific topics are discussed:
• Basic features - a brief discussion of the XMO2
Transmitter’s basic features and capabilities
• Theory of operation - details on the sensor’s construction
and how the measurements are made
• System components - a description of the available XMO2
options and the required sample system
Note: The XMO2 technical specifications and ordering
information can be found in Chapter 5, Specifications.
1.2 Basic features
The XMO2 Transmitter measures the concentration of
oxygen in the 0-100% range in a variety of gas mixtures,
and it provides a 4-20 mA analog output signal that is
proportional to the oxygen concentration. In performing
these measurements, the microprocessor-based XMO2
provides automatic oxygen signal compensation for
background gas composition and/or pressure variations.
In addition, the XMO2 is equipped with Fast-Response
software, real-time error detection, and push-button field
calibration.
The XMO2 Transmitter offers several unique design features:
• Ultra-stable thermistors and a measuring cell that is
temperature-controlled at 45°C (113°F) provide excellent
zero and span stability, as well as a high tolerance to
ambient temperature variations. Optional measurement
cell operating temperatures of 60°C (140°F) and 70°C
(158°F) are available for special applications.
• The measurement cell design is resistant to
contamination and relatively tolerant of sample gas
flow rate variations. As it has no moving parts, the XMO2
performs reliably under the shock and vibration found in
many industrial applications.
• The XMO2’s unique “bridge-within-a-bridge”
measurement circuit and microprocessor-based
operation automatically compensate the oxygen signal
for variations in the magnetic and thermal properties
of the background gas that would otherwise cause
measurement errors.
• At high oxygen concentrations, changes in atmospheric
pressure have significant effects on the measured
oxygen level. However, the XMO2 provides automatic
microprocessor-based atmospheric pressure
compensation of the oxygen signal for these applications.
• The XMO2 modular construction means that the unit can
be field-calibrated quickly and easily. Also, the plug-in
measuring cell can be replaced with a pre-calibrated
spare in just minutes.
• The XMO2 transmitter, which is available in weatherproof
or explosion-proof packaging, is designed to be installed
as close as possible to the process sample point. It can
be located up to 450 ft (150 m) from the control system,
display, or recorder using standard Panametrics cables.
• An RS232 serial communications interface and a multi-
level, menu-driven User Program provide a convenient
means for calibrating and programming the XMO2.
• Internal software algorithms along with user-programmed
calibration data provide compensation of the oxygen
signal for background gas composition, atmospheric
pressure, or both background gas composition and
atmospheric pressure.
• Panametrics proprietary Fast-Response software provides
enhanced response times to track rapidly changing
processes.
• Sophisticated error-checking software with user-
programmable defaults and error limits detects abnormal
measurement conditions.
• Pushbutton adjustment of the 4-20 mA analog output zero
and span values is a standard feature with the XMO2.
• A drift calibration routine provides automatic drift
compensation for minor changes in the sensor calibration
setting.
• Programmable recalibration is accomplished in the
field via a computer interface, with no potentiometers to
adjust.
1.3 Theory of operation
The XMO2 measures the concentration of oxygen in a gas
mixture by utilizing the unique paramagnetic properties of
oxygen.
As its magnetic susceptibility is approximately 100 times
greater than that of most other common gases, oxygen
can be easily distinguished from these gases based on
its behavior in a magnetic field. Also, oxygen’s magnetic
susceptibility varies inversely with temperature. Therefore,
by carefully combining a magnetic field gradient and a
temperature gradient within the XMO2 measuring cell,
an oxygen-containing gas mixture can be made to flow
along these gradients. This induced gas flow is known as a
magnetic wind. The intensity of this magnetic wind depends
on the concentration of oxygen in the gas mixture.
Figure 1 below shows a flow schematic for the XMO2
measuring cell. Permanent magnets within the cell create
a magnetic field, while the cell temperature is controlled
at 45°C (113°F) to maintain thermal equilibrium. In addition,
the cell contains two pairs of highly-stable, glass-coated
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thermistors. One thermistor of each pair located inside the
magnetic field and the other thermistor of each pair located
outside the field. Because the thermistors are electrically
heated, a temperature gradient is thus created within the
magnetic field.
Figure 2 below shows the arrangement of the two thermistor
pairs.
A small portion of the sample gas flow is allowed to
diffuse from the lower chamber into the upper chamber
of the measurement cell. If the sample gas contains
a paramagnetic gas such as oxygen, it is attracted to
the magnetic field, causing the sample gas pressure to
become locally higher in the center of the chamber. At the
same time, the sample gas pressure is slightly lower near
the thermistors because the high thermistor temperature
causes the paramagnetic properties of oxygen to decrease.
This slight gradient in sample gas pressure causes the
sample gas to flow outward from the center of the magnetic
field and over the thermistors. As a result, the inner, wind-
generating thermistors decrease in temperature as they
lose heat to the magnetic wind. This causes a temperature
gradient between the cooler inner thermistors and the
warmer outer thermistors.gure 2: Typical XMT1000 labels (stainless
Figure 1: Measuring cell flow schematic
Figure 2: Arrangement of the thermistor pairs
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