Emerson Rosemount CX1100 User manual

Reference Manual
00809-0100-4110, Rev AB
May2023
Rosemount™ CX1100 In-Situ Oxygen
Transmitter

Essential instructions
Read this page before proceeding!
Emerson™ designs, manufactures, and tests its products to meet many national and international standards. Because
these instruments are sophisticated technical products, you must properly install, use, and maintain them to ensure
they continue to operate within their normal specifications. The following instructions must be adhered to and
integrated into your safety program when installing, using, and maintaining Emerson products.
•Read all instructions prior to installing, operating, and servicing the product.
•Install equipment as specified 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.
Symbols used on equipment and in instruction manual
Earth (ground) terminal
Protective conductor terminal
Risk of electrical shock
Hot surface
Refer to Manual.
Equipment protected throughout by double insulation
(applies to Rosemount CX1100 Remote Transmitter housing only)
WARNING
Physical access
Unauthorized personnel may potentially cause significant damage to and/or misconfiguration of end users’
equipment. This could be intentional or unintentional and needs to be protected against.
Physical security is an important part of any security program and fundamental in protecting your system. Restrict
physical access by unauthorized personnel to protect end users’ assets. This is true for all systems used within the
facility.
2

Contents
Chapter 1 General information................................................................................................................. 5
1.1 Overview.......................................................................................................................................5
1.2 Rosemount CX1100 Oxygen Probe and Transmitter..............................................................5
1.3 Typical system package.............................................................................................................. 6
1.4 Rosemount CX1100 In-Situ Oxygen Transmitter ordering information ..............................7
1.5 Specifications............................................................................................................................... 8
Chapter 2 Install........................................................................................................................................11
2.1 Install probe...............................................................................................................................11
2.2 Mount remote display.............................................................................................................. 15
Chapter 3 Wire...........................................................................................................................................23
3.1 Interconnect cable installation specifications....................................................................... 23
3.2 Connect the cables....................................................................................................................23
Chapter 4 Start up.....................................................................................................................................29
Chapter 5 Calibration and maintenance................................................................................................31
5.1 Calibrate..................................................................................................................................... 31
5.2 Calibration record..................................................................................................................... 33
Chapter 6 Rosemount™ CX1100 In-Situ Oxygen Transmitter menu trees......................................... 35
6.1 System menu tree..................................................................................................................... 35
6.2 Probe menu tree....................................................................................................................... 36
Chapter 7 Parameters.............................................................................................................................. 39
7.1 System and probe parameters............................................................................................... 39
7.2 Rosemount™ CX1100 In-Situ Oxygen Transmitter system alarms...................................... 42
Appendix A Product certifications............................................................................................................. 45
A.1 Directive information................................................................................................................45
A.2 Ordinary location certification.................................................................................................45
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Contents Reference Manual
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1 General information
1.1 Overview
The Rosemount™ CX1100 In-Situ Oxygen Transmitter provides a continuous, accurate
measurement of the oxygen remaining in flue gases coming from a combustion process.
Accurate measurements of furnace exhaust excess oxygen are critical for combustion
optimization, which result in reduced energy costs, increased safety, and lower emissions.
This product is intended for use for combustion applications only.
The Rosemount CX1100 probe contains a zirconia type oxygen sensor. At high
temperatures, zirconia produces an electrical potential that is proportional to the
difference in process oxygen concentration and ambient reference air. This voltage is
transmitted to the Rosemount CX1100 remote transmitter and output as an analog signal.
The sensor is mounted at the end of the probe tube which extends into a flue gas duct
or stack. Varying lengths of the probe are available to achieve desired insertion depths.
The probe tube also houses a heating element to precisely control the temperature of the
sensor, reducing errors induced by varying process temperatures.
1.2 Rosemount CX1100 Oxygen Probe and
Transmitter
A complete Rosemount CX1100 In-Situ Oxygen Transmitter system includes a probe and
remote transmitter. Raw signals (sourced from the heater thermocouple and oxygen
sensor) and power are transmitted between the Rosemount CX1100 probe and the
Rosemount CX1000 remote transmitter, interconnect wiring consisting of nine conductors.
The specifications of the wiring arrangement can be found in Wire. If following the
specifications, 200 ft. (61 m) is the maximum cable length allowed.
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1.3 Typical system package
Figure 1-1: Typical System Package
A. Rosemount CX1100 Remote Transmitter
B. Quick Start Guide
C. Optional mounting or adapter plate
D. Interconnect cable (user-supplied)
E. Optional calibration gas flowmeter
F. Rosemount CX1100 Probe
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1.4 Rosemount CX1100 In-Situ Oxygen Transmitter
ordering information
Model Product description
CX1100 In-Situ Oxygen Transmitter
Material
A 304L stainless steel
Probe length
050 1.64 ft. (0.5 m) oxygen probe
100 3.28 ft. (1.0 m) oxygen probe
200 6.56 ft. (2.0 m) oxygen probe
Probe mounting flange
F20 ANSI/DIN: 4.75 in. / 5.71 in. bolt circle, 0.75 in. holes
Transmitter
M7 Remote transmitter with LCD display and interface
M0 Probe only (no transmitter)
Product certification
G6 CSA ordinary location
Probe mounting hardware
N1 New installation plate - ANSI pattern
N2 New installation plate - DIN pattern
Transmitter mounting hardware
T3 2-in. pipe / wall mount kit
Calibration accessories
F1 Calibration gas flowmeter
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1.5 Specifications
Table 1-1: System Measurement Specifications
Specification Description
Net O2 range 0 - 23%
Repeatability 0.1% of O2 or 1.0% of reading, whichever is lower
Lowest detectable limit 0.05% O2
Process temperature effect Less than 0.3% O2 from 77 to 1292 °F (25 to 700
°C)
System speed of response to calibration gas Initial response in less than 3 seconds, T90 in
10 seconds. Response to process gas changes
will vary depending on process gas velocity and
particulate loading of the diffuser.
Environmental specifications
Table 1-2: Probe
Specification Description
Probe Process wetted materials are 304 stainless steel.
Maximum process temperature 752 °F (400 °C)
Table 1-3: Probe Terminations
Specification Description
Rosemount CX1100 probe ambient temperature
limits
-4 to 158 °F (-20 to 70 °C)
Table 1-4: Remote Display
Specification Description
Materials Polycarbonate
Ambient temperature limits -4 to 122 °F (-20 to 50 °C)
Installation specifications
Table 1-5: Probe
Specification Description
Probe mounting range Vertical or horizontal: 2-in. 150# (4.75 in. (121
mm) bolt circle) and DIN145
Note
Flanges are flat-faced and for mounting only.
Flanges are not pressure-rated. A 2.5-in.
diameter hole in the process is required.
Many adapter flanges are available to mate to
existing flanges.
Reference air No instrument air required. Ambient air diffuses
into the probe passively. Ensure that ambient air
is fresh (20.95% O2).
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Table 1-5: Probe (continued)
Specification Description
Calibration Semi-automatic manual gas switching. New
calibration values are calculated in the remote
electronics.
Cal gases 0.4% and 8% O2, balance N2 recommended.
Instrument air may be used as a high cal gas,
but is not recommended. 100% nitrogen cannot
be used as a low cal gas.
Calibration gas flow 5 scfh (2.5 l/min) at 15 PSI
Heater electrical power 120/240 Vac, 50/60 Hz, 1.8 A Max
Traditional architecture cable Customer-supplied
Power consumption of probe heater 150 watts max. during initial warm-up
Table 1-6: Remote Electronics
Specification Description
Electrical power 120/240 Vac, 50/60 Hz, 1.8 A Max
Power consumption 150 watts during initial warm-up
Analog output 4-20 mA. Max load 550 Ohms
Alarms relays Two SPDT Form C, epoxy sealed contacts rated
5A, 30 Vdc, 120 Vac, or 230 Vac; user configurable
to alarm.
Resistive load: 5A at 28 Vdc or 300 Vac
Inductive load: 1/8 HP at 120/240 Vac
Probe sensing cable 3 twisted pair conductors, 22 ga overall shielded
cable to connect the TC, O2, and CJC signals
Heater cable 3 multi conductor 18 ga shielded cable to
connect the heater control signal
Rosemount CX1100 Probe Shipping weight Actual weight
19.68 in. (0.5 m) 19 lb. (8.6 kg) 13.5 lb. (6.1 kg)
39.37 in. (1 m) 23 lb. (10.43 kg) 16.8 lb. (7.6 kg)
78.74 in. (2 m) 30.5 lb. (13.8 kg) 23 lb. (10.43 kg)
Rosemount CX1100
Remote Transmitter
dimensions in inches
(millimeters)
Shipping weight Actual weight Part number
6.10 x 6.10 x 5.15 in.
(155 x 155 x 131 mm)
4 lb. (1.8 kg) 3 lb. (1.4 kg) 24490-00
Accessory Part number
Calibration flowmeter 771B635H01
Cal gas adaptor kit to mate to existing tubing arrangement 1A98771H07
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2 Install
WARNING
Failure to follow safety instructions could result in serious injury or death.
Before installing this equipment, read the Essential instructions at the front of this
Reference Manual.
WARNING
ELECTRIC SHOCK
Failure to install covers and ground leads could result in serious injury or death.
Install all protective equipment covers and safety ground leads after installation.
CAUTION
Equipment damage
Damage to the transmitter may result.
Do not allow the temperature of the probe electronics to exceed 194 °F (90 °C)
2.1 Install probe
Emerson can supply a weld plate for welding to the flue gas duct for new installations.
Procedure
1. If using the standard square weld plate (Figure 2-2) or an optional flange mounting
plate, weld or bolt the plate onto the duct.
The through hole diameter in the stack or duct wall and refractory material must be
at least 2.5 in. (63.5 mm).
2. Insert probe through the opening in the mounting flange and bolt through the
probe gasket and flange.
For horizontal installations, the breather port must be oriented such that it is facing
downward.
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Figure 2-1: Probe installation
All dimensions are in millimeters with inches in parentheses.
A. M6 X 1 X 25 hex head machine screw (3X)
B. Calibration gas, 4.8 mm (3/16-in.) tube fitting, 2.82 liter/minute (10 SCFH), 138 kPa (20
psig)
C. M5 X 0.8 x 10 pan head machine screw, ground screw
D. ½ national pipe thread (NPT) conduit connection (power, signal)
E. Breather port
F. Calibration gas connection
Table 2-1: Removal/installation
Probe length Removal envelope
.5 m (19.68 in.) 750 mm (30 in.)
1 m (39.37 in.) 1250 mm (49 in.)
2 m (78.74 in.) 2250 mm (89 in.)
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Figure 2-2: Probe installation
All dimensions are in millimeters with inches in parentheses.
Square weld plate, ANSI pattern part 4512C34G01
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Table 2-2: Mounting flange
ANSI DIN
Flange diameter 185 mm (7.28 in.)
Hold diameter 19.1 mm (.75 in.)
4 holes equally spaced on BC 120.7 mm (4.75 in.) 145 mm (5.71 in.)
Figure 2-3: Drip loop and insulation removal
A. Note
Replace insulation after installing Rosemount .
B. Drip loop
C. Stack duct or metal wall
D. Adapter plate
E. Insulation
Note
Probe installation may be vertical or horizontal.
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2.2 Mount remote display
The remote transmitter is available in a panel mounting or wall/pipe mounting
configuration.
Prerequisites
You need a wrench and bolts to mount the transmitter.
Note
Dimensions are in inches with millimeters in parentheses.
Figure 2-4: Wall/Surface Mount Front View
A. Four cover screws
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Figure 2-5: Wall Mount Side View
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Figure 2-6: Pipe Mount Bottom View
A. Front panel
B. Six ½-in. (12.7 mm) national pipe thread (NPT) conduit openings
C. Mounting bracket
D. U-bolts
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Figure 2-7: Pipe Mount Side View
A. 2-in. (50.8 mm) pipe supplied by customer
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Figure 2-8: Panel Mount Front View
The front panel is hinged at the bottom. The panel swings down for easy access to the
wiring locations.
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Figure 2-9: Panel Mount Side View
A. Maximum panel thickness 0.375 in. (9.52 mm)
B. Panel mount gasket
C. Four mounting brackets and screws provided
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