Rosemount Analytical 6888 Operating Manual
Quick Start Guide
CMB-QSG-6888C, Rev B
October 2017
Rosemount™ 6888C In-Situ Combustion Oxygen
Analyzer
For use in Hazardous Areas
NOTICE
This guide provides basic guidelines for Rosemount 6888 In-Situ Oxygen Analyzers. It does not provide instructions for
configuration, diagnostics, maintenance, service, troubleshooting, or flame-proof installations. Refer to the
Rosemount 6888C Manual for more instruction.
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. 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.
• Read all instructions prior to installing, operating, and servicing the product.
• If you do not understand any of the instructions, contact your Emerson 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 instruction 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.
• Use only factory documented components for repair. Tampering and unauthorized substitution and parts can affect
product performance and cause unsafe operation of your process.
NOTICE
The Field Communicator must be upgraded to System Software 2.0 with graphic license for operation with the 6888C O
Transmitter. The AMS software must be upgraded to AMS 8.0 or above. Contact Emerson's Global Service Center (GSC) at
1-800-833-8314 to upgrade the Field Communicator software to System Software 2.0 with graphic license.
2
Symbols
Earth (ground) terminal
Protective conductor terminal
Risk of electrical shock
Refer to Instruction Manual
The following definitions apply to Warnings, Cautions, and Notices found throughout this publication.
WARNING!
Highlights an operation or maintenance procedure, practice, condition, statement, etc., which 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., which if not strictly observed, could result in
damage to or destruction of equipment or loss of effectiveness.
NOTICE
Highlights an essential operating procedure, condition, or statement.
WARNING!
EXPLOSION
Do not open when an explosive atmosphere may be present.
WARNING!
ELECTRIC SHOCK
Do not open while energized.
CAUTION!
EQUIPMENT DAMAGE
For the standard housing probe and direct replacement probe, only use supply cables & certified cable glands rated > 105 °C (221 °F).
CAUTION!
EQUIPMENT DAMAGE
For the autocal housing, only use supply cables and certified cable glands rated > 85 °C (185 °F).
Contents
Contents
Chapter 1 Installation .....................................................................................................................1
1.1 Mechanical installation ................................................................................................................ 1
1.1.1 Rosemount 6888C Probe installation ............................................................................ 1
1.2 Electrical ...................................................................................................................................... 4
1.2.1 Wiring for Rosemount 6888 Transmitter Probe only (no Rosemount 6888 Xi
Electronics) ................................................................................................................... 5
1.2.2 Standard housing transmitter probe with Rosemount 6888 Xi Electronics .................... 6
1.2.3 Connecting the Transmitter probe with integral autocal to HART
communications ......................................................................................................... 10
1.2.4 Connecting the Transmitter probe with integral autocal to FOUNDATION Fieldbus
communications ......................................................................................................... 12
1.2.5 Connecting the traditional architecture system to the direct replacement probe ........17
1.3 Pneumatic installation ............................................................................................................... 19
1.3.1 Calibration gas ............................................................................................................ 21
Chapter 2 Configuration, startup, and operation .......................................................................... 23
2.1 Powering up Rosemount 6888 Transmitter without Rosemount 6888Xi ....................................23
2.2 Powering up Rosemount 6888 Transmitter with single/dual channel or single channel ..............23
2.3 Powering up the Rosemount 6888 Direct Replacement Probe (no electronics inside) with
traditional architecture Rosemount 6888 Xi .............................................................................. 24
2.4 Rosemount 6888 Xi Quick Start Wizard ..................................................................................... 24
2.5 Calibration .................................................................................................................................25
2.5.1 Manual/semi-automatic calibration ............................................................................ 26
2.5.2 Fully automatic calibration ..........................................................................................26
2.5.2.1 Rosemount 6888 Probes with standard electronics housing ............................26
2.5.2.2 Rosemount 6888 Probe with integral autocal housing .....................................27
™
Appendices and reference
Appendix A Rosemount™ 6888C Product Certifications ................................................................... 29
A.1 European Directive information ................................................................................................. 29
A.2 Ordinary location certification ................................................................................................... 29
A.3 Installing equipment in North America ...................................................................................... 29
A.4 USA/Canada .............................................................................................................................. 29
A.5 Europe ....................................................................................................................................... 30
Quick Start Guide i
Contents
ii 6888C
1 Installation
WARNING!
Before installing this equipment, read the Essential Instructions at the front of this Quick Start
Guide. Failure to follow safety instructions could result in serious injury or death.
WARNING!
ELECTRIC SHOCK
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.
1.1 Mechanical installation
Note that most combustion processes run only slightly negative or positive in pressure, so
that the probe flange is for mechanical mounting only. The probe is not rated for high
pressures. If this is a new installation, a weld plate for welding to the flue gas duct can be
supplied.
Installation
1.1.1
WARNING!
ELECTRIC SHOCK
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. Do not install the
transmitter or the Rosemount 6888 Xi in hazardous areas or in the vicinity of flammable
liquids.
Rosemount 6888C Probe installation
Complete the following steps to install the Rosemount 6888C Probe in the duct.
Prerequisites
Ensure all components are available to install the Rosemount 6888C O2 probe.
Procedure
1. If using the optional ceramic diffusion element, the vee-deflector must be correctly
oriented. Before inserting the Rosemount 6888C probe, check the direction of gas
flow in the duct. Orient the vee-deflector so the apex points upstream towards the
flow.
2. If using the standard square weld plate 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 2-1/2 in. (63.5 mm).
Quick Start Guide 1
Installation
3. Insert probe through the opening in the mounting flange and bolt the unit to the
flange.
6888C Probe with Standard Terminations/Electronics HousingFigure 1-1:
Note
All dimensions are in inches with millimeters in parentheses.
6888C Probe with Integral Autocal HousingFigure 1-2:
Removal/InstallationTable 1-1:
DIM B removal en-
DIM A insertion
Probe length
18 in. (457 mm)
probe
3 ft (0.91 m) probe 32.52 (826) 46.6 (1182) 50.1 (1271)
depth
16.10 (409) 15.77 (401) 19.26 (490)
velope standard
housing
DIM B removal envelope accessory
housing
2 6888C
Installation
Removal/Installation (continued)Table 1-1:
DIM B removal en-
DIM A insertion
Probe length
6 ft (1.83 m) probe 68.52 (1740) 82.6 (2097) 86.1 (2186)
depth
velope standard
housing
DIM B removal envelope accessory
housing
Probe InstallationFigure 1-3:
Mounting FlangeTable 1-2:
ANSI DIN
Flange dia 8.25 (210)
Hold dia .75 (20)
(4) holes eq sp on BC 6.00 (152) 6.70 (170)
Installation weld plate outlineTable 1-3:
ANSI DIN
A
B thread .625 (11) (M-16x2)
C dia 6.00 (152) 6.70 (170)
7.75 (197) 8.5 (215)
Quick Start Guide 3
Installation
Drip Loop and Insulation RemovalFigure 1-4:
1.2
A. Line voltage
B. Logic I/O, 4-20 mA signal
C. Stack or duct metal wall
D. Adapter plate
E. Insulation
F.
Note
Replace insulation after installing Rosemount 6888C.
Note
Standard housing probe shown. Accessory housing is similar. Probe may be vertical or horizontal.
Electrical
All wiring must conform to local and national codes. Multiple wiring diagrams are shown in
this section. Always refer to the diagrams that apply to your transmitter configuration and
disregard all other wiring diagrams.
4 6888C
Installation
WARNING!
ELECTRIC SHOCK
Disconnect and lock out power before connecting the power supply.
Install all protective 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 61010-1 (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. The 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.
NOTICE
To maintain proper earth grounding, ensure a positive connection exists between the
transmitter housing and earth. The connecting ground wire must be 14 AWG minimum.
1.2.1
NOTICE
Line voltage, signal, and relay wiring should be rated for at least 105 °C (221 °F).
Wiring for Rosemount 6888 Transmitter Probe only (no Rosemount 6888 Xi Electronics)
The Rosemount 6888 Transmitter Probe has built-in electronics that control the heater
temperature and amplify the raw O2 millivolt signal to a linear 4-20 mA.
The 4-20 mA signal lines can be run directly to the control room and also power the
transmitter electronics. There is no O2 display or keypad on the probe, so setup must be
conducted through HART communications via a 475 handheld communicator or Asset
Management Solutions (AMS).
Procedure
1. Remove the cover from the probe.
2. Connect the line (L1 wire) to the L1 terminal, the neutral (L2 wire) to the L2/N
terminal, and the ground wire to the ground lug.
The Rosemount 6888C accepts line voltage at 120/240 Vac ±10%, 50/60 Hz. No
setup is required.
3. Connect the 4-20 mA signal wires at the transmitter. Use a shielded twisted wire
pair. Do not allow bare shield wires to contact the circuit boards. Insulate the shield
wires prior to termination.
The transmitter electronics are loop-powered, i.e., the 4-20 mA signal wires supply
24 Vdc from the DCS or an external power supply.
Quick Start Guide 5
Installation
Rosemount 6888C Standard Probe HousingFigure 1-5:
1.2.2
4. Terminate the shield only at the transmitter electronics housing unless using a
Rosemount 6888 Xi. When using the Rosemount 6888 Xi Advanced Electronics,
terminate the shield at both ends.
5. Reinstall cover on transmitter.
Standard housing transmitter probe with Rosemount 6888 Xi Electronics
The Rosemount 6888 Xi Electronics serves as an operatoer interface unit with a back-lit
display and keypad. It is capable of two channels, serving up to two Rosemount 6888
probes.
1. Remove cover screws from the front cover of the Rosemount 6888 Xi. Swing down
the front cover of the interface box.
2. Pull out the I/O board on the right side of the card rack inside the Rosemount 6888
Xi.
If your system is configured to operate two transmitter probes, there are two I/O
interface boards.
3. Connect the 4-20 mA signal wires at J4 of the I/O board. Attach the supplied ferrite
clamp over the 4-20 mA OUT wires that extend past the shield.
6 6888C
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