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Emerson Rosemount 6888C Quick Start Manual

In situ combustion oxygen analyzer for hazardous areas
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Quick Start Guide
00825-0100-4891, Rev AC
October 2022
™
Rosemount
6888C In Situ Combustion
Oxygen Analyzer
For Hazardous Areas
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Summary of Contents for Emerson Rosemount 6888C

  • Page 1 Quick Start Guide 00825-0100-4891, Rev AC October 2022 ™ Rosemount 6888C In Situ Combustion Oxygen Analyzer For Hazardous Areas...
  • Page 2 Inform and educate your personnel in the proper installation, operation, and maintenance of the product. Follow appropriate local and national codes. If you do not understand any of the instructions, contact your Emerson representative for clarification. WARNING Explosions Do not open when an explosive atmosphere may be present.

  • Page 3: Table Of Contents

    The Field Communicator must be upgraded to System Software 2.0 with graphic license for operation with the Rosemount 6888C Analyzer. 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.
  • Page 4 Quick Start Guide October 2022 Emerson.com/Rosemount...

  • Page 5: Installation

    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, Emerson can supply a weld plate for welding to the flue gas duct.
  • Page 6 CAUTION If washing the ducts down during an outage, make sure to first power down the probes and remove them from the wash area. Figure 1-1: Rosemount 6888C Probe with standard terminations and electronics housing Note All dimensions are in inches with millimeters in parentheses.
  • Page 7 October 2022 Quick Start Guide Table 1-1: Removal/installation dimensions Probe length Dimension A Dimension B Removal insertion depth removal envelope envelope accessory standard housing housing 18 in (457 mm) 16.1 in (409 mm) 15.77 in 19.26 in probe (400.6 mm) (489.2 mm) 36 in (914 mm) 32.52 in...
  • Page 8 D. Equally spaced E. Four studs, lockwashers, and nuts equally spaced on C, diameter Note All dimensions are in inches with millimeters in parentheses. Table 1-2: Installation weld plate dimensions ANSI 7.75 in (196.8 mm) 8.5 in (216 mm) probe probe Emerson.com/Rosemount...
  • Page 9 October 2022 Quick Start Guide Table 1-2: Installation weld plate dimensions (continued) ANSI B thread 0.625 in (15.88 mm) (M-16x2) probe C diameter 6 in (152 mm) probe 6.7 in (170 mm) probe Table 1-3: Mounting flange dimensions ANSI Flange diameter 8.25 in (209.5 mm) Hold diameter 0.75 in (19.0 mm)
  • Page 10 B. Logic input/output, 4-20 mA signal C. Drip loop D. Stack or duct metal wall E. Adapter plate F. Insulation Note Replace insulation after installing analyzer. Note Standard housing probe shown. Accessory housing is similar. Probe may be vertical or horizontal. Emerson.com/Rosemount...
  • Page 11 Line voltage, signal, and relay wiring should be rated for at least 221 °F (105 °C). 1.2.1 Wire Rosemount 6888C Analyzer Probe only (no Rosemount 6888Xi Electronics) The Rosemount 6888 Analyzer Probe has built-in electronics that control the heater temperature and amplify the raw O milli-volt signal to a linear 4-20 mA.
  • Page 12 6. Reinstall the I/O board in the card rack of the Rosemount 6888Xi. 7. If your system is configured for two channel operation, repeat Step 2 through Step 6 to connect the other probe's signal wires. Emerson.com/Rosemount...
  • Page 13 October 2022 Quick Start Guide 8. Remove the probe's connector from the power supply board located on the left side of the card rack inside the Rosemount 6888Xi. 9. Connect the line, or L1, wire to the L1 terminal and the neutral, or L2, wire to the N terminal.
  • Page 14 D. Channel #1 IO board E. AC input to P/S F. Plug G. Channel #2 alarm relay (Rosemount SPS) ® H. Channel #2 4-20 mA/HART output I. Channel #1 alarm relay (Rosemount SPS) J. Channel #1 4-20 mA/HART output Emerson.com/Rosemount...
  • Page 15 October 2022 Quick Start Guide ® 1.2.3 Connect the analyzer probe with integral autocalibration to HART communications This probe contains gas-switching solenoids so that the Rosemount 6888Xi Electronics can control the introduction of calibration gases. You can initiate calibrations in the following ways •...
  • Page 16 F. Test point group Note A. Except for JP5, JP7, and JP8 on the input/output (IO) board, jumper and switch settings are factory set and are shown for reference only. B. IO board: 4-20 mA/HART loop power settings • Emerson.com/Rosemount...
  • Page 17 October 2022 Quick Start Guide — Pins 1-2: internal power Rosemount 6888Xi to Rosemount 6888 analyzer — Pins 2-5: external power Rosemount 6888Xi to Rosemount 6888 analyzer (requires 2,500 resistor across J4, PR+ to PR-) • JP7/JP8 — Pins 1-2: internal power to DCS —...
  • Page 18 5. Reinstall both covers on analyzer. Figure 1-8: Integral autocalibration and F Fieldbus OUNDATION communication without optional Rosemount 6888Xi A. Signal B. Not used C. #8 pan htr scr (internal ground) D. Power E. Probe test point group Emerson.com/Rosemount...
  • Page 19 October 2022 Quick Start Guide Figure 1-9: Integral autocalibration and F Fieldbus OUNDATION communication with optional Rosemount 6888Xi A. Ribbon cable to display board J2 Sensor 1 B. Signal ® C. HART connection (Used as a communication bus from probe analyzer electronics to optional Rosemount 6888Xi.
  • Page 20 Analyzer. • Pins 2-3: external power Rosemount 6888Xi to Rosemount 6888 Analyzer (requires 2,500 resistor across J4, PR+ to PR-). JP7/JP8 • Pins 1-2: internal power Rosemount 6888Xi to DCS. • Pins 2-3: external power Rosemount 6888Xi to DCS. Emerson.com/Rosemount...
  • Page 21 October 2022 Quick Start Guide Figure 1-10: Wiring Diagrams: integral autocalibration and F OUNDATION Fieldbus communication with Rosemount 6888Xi A. Power supply board B. Channel #2 IO board C. Shield ground D. Channel #1 IO board E. AC input to power supply F.
  • Page 22 Ensure the cable shield braid is evenly formed over the gray insert. When properly formed, the braid should be evenly spaced around the circumference of the insert and not extend beyond the narrow diameter portion. g) Carefully press the gray insert into the gland body. Emerson.com/Rosemount...
  • Page 23 October 2022 Quick Start Guide The grooves on the insert should align with similar grooves inside the gland body. Press the insert in until it bottoms out in the gland body. h) Slide the locking nut up and thread it onto the gland body. Tighten the locking nut so the rubber grommet inside the plastic insert compresses against the cable wall to provide an environmental seal.
  • Page 24 B. All wiring marked with an asterisk (*) is factory wiring inside the Rosemount 6888 Xi. C. Except for JP7 and JP8 on IO board, jumper and switch settings are factory set and are shown for reference only. Emerson.com/Rosemount...
  • Page 25 October 2022 Quick Start Guide Figure 1-13: Traditional architecture with direct replacement probe (no electronics inside) A. Power supply board B. DR board C. Shield ground D. IO board E. Plug F. Probe cable G. AC input H. Alarm relay, Rosemount SPS ®...
  • Page 26 Do not use gases with hydrocarbon concentrations of more than 40 parts per million. CAUTION Before washing down the ducts, verify that the Rosemount 6888C Analyzers have been powered down and removed from the wash areas. CAUTION Damage can result from having a cold analyzer exposed to process gases.

  • Page 27: Configuration, Start-Up, And Operation

    October 2022 Quick Start Guide Configuration, start-up, and operation WARNING Electrical shock Failure to install covers and ground leads could result in serious injury or death. Install all protective covers and ground leads after installation. CAUTION If external loop power is used, the power supply must be a safety extra low voltage (SELV) type.
  • Page 28 0 to 10 percent O If there is an error condition at start-up, an alarm message is displayed. Power up the Rosemount 6888C direct replacement probe (no electronics inside) with traditional architecture...
  • Page 29 October 2022 Quick Start Guide Run Rosemount 6888Xi Quick Start Wizard When you first power up the Rosemount 6888Xi, a short wizard program guides you through the basic setup. Once configured, the Rosemount 6888Xi retains the setup, and the wizard will not repeat. Procedure 1.
  • Page 30 Quick Start Guide October 2022 Calibration 2.5.1 Manual/semi-automatic calibration A technician can calibrate the Rosemount 6888C probe with standard housing by following prompts via the display of the Rosemount 6888Xi ® Electronics or via HART communications to a Field Communicator or Asset Management Solutions (AMS) console.
  • Page 31 October 2022 Quick Start Guide • Calibration recommended diagnostic that is periodically checking cell impedance. • Push button on the Rosemount 6888 Xi Electronics. ® • HART communications from a Field Communicator or AMS. • External contact closure. • Time since the last successful calibration. If using the O measurement for automatic control, always place the O control loop into manual prior to calibrating.

  • Page 32: Product Certifications

    A copy of the Declaration of Conformity can be found at the end of the Quick Start Guide. The most recent revision of the Declaration of Conformity can be found at Emerson.com/Rosemount. Ordinary location certification As standard, the device has been examined and tested to determine that the...
  • Page 33 October 2022 Quick Start Guide Conditions of acceptability 1. The unit is intended to be connected to supply mains by qualified personnel in accordance with national (e.g. CEC, NEC, etc) and local codes. 2. Suitable APPROVED switch and fuse or a circuit breaker shall be provided to facilitate the disconnection of mains power.
  • Page 34 4. The pressure within the enclosure and gas lines shall not be higher than 1.1 times the atmospheric pressure during the normal operations of the equipment. Emerson.com/Rosemount...
  • Page 35 October 2022 Quick Start Guide 5. Fasteners property class must be A2-70 Stainless Steel. 6. Flameproof joints are not intended to be repaired. Quick Start Guide...

  • Page 36: Declaration Of Conformity

    Quick Start Guide October 2022 Declaration of Conformity Emerson.com/Rosemount...
  • Page 37 October 2022 Quick Start Guide Quick Start Guide...

  • Page 38: China Rohs Table

    Quick Start Guide October 2022 China RoHS table Emerson.com/Rosemount...
  • Page 39 October 2022 Quick Start Guide Quick Start Guide...
  • Page 40 For more information: Emerson.com © 2022 Emerson. All rights reserved. Emerson Terms and Conditions of Sale are available upon request. The Emerson logo is a trademark and service mark of Emerson Electric Co. Rosemount is a mark of one of the Emerson family of companies.