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Emerson Rosemount OCX8800 Quick Start Manual
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Emerson Rosemount OCX8800 Quick Start Manual

Emerson Rosemount OCX8800 Quick Start Manual

Oxygen and combustibles transmitter with 4–20 ma hart protocol
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Quick Start Guide
00825-0100-4880, Rev AC
October 2019
™
Rosemount
OCX8800 Oxygen and
Combustibles Transmitter
®
with 4–20 mA HART
Protocol

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Summary of Contents for Emerson Rosemount OCX8800

  • Page 1 Quick Start Guide 00825-0100-4880, Rev AC October 2019 ™ Rosemount OCX8800 Oxygen and Combustibles Transmitter ® with 4–20 mA HART Protocol...

  • Page 2: Table Of Contents

    October 2019 Essential instructions 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.

  • Page 3: Description And Specifications

    Figure 1-1. Check the model number of your Rosemount OCX8800 against the transmitter features and options, making sure options specified by this number are on or included with the unit. Use this complete model number for any correspondence with Emerson.
  • Page 4 Figure 1-1: Typical System Package A. Quick Start Guide B. Adapter plate with mounting hardware and gasket C. Reference air and calibration set (optional) D. Blowback hardware (optional) E. Rosemount OCX8800 with remote electronics F. Rosemount OCX8800 with integral electronics Quick Start Guide...

  • Page 5: Installation

    Product safety WARNING EXPLOSIONS The Rosemount OCX8800 may explode if used in hazardous areas. The Rosemount OCX88A can be installed in general purpose areas only. Do not install the Rosemount OCX88A in hazardous areas. To maintain explosion-proof protection of the Rosemount OCX88C in...
  • Page 6 Quick Start Guide October 2019 CAUTION Damage to the electronics may result. Do not allow the temperature of the electronics housing to exceed 185 °F (85 °C). CAUTION Failure to connect the pneumatic lines can allow the flow of contaminants into the transmitter's ports.
  • Page 7 October 2019 Quick Start Guide 5. Where a positive stack pressure exists at the installation site, connect all pneumatic lines prior to installing the transmitter in the stack or ductwork. Note If process temperatures will exceed 392 °F (200 °C), use anti-seize compound on stud threads to ease future removal of the transmitter.
  • Page 8 Quick Start Guide October 2019 WARNING The transmitter may explode in hazardous areas. All cable entry devices and blanking elements for unused apertures must be certified flameproof, suitable for the conditions of use, and properly installed. The sensor housing must not be mounted to any surface or flange that exceeds 383 °F (195 °C).
  • Page 9 October 2019 Quick Start Guide 2.3.4 Oxygen (O ) 4-20 mA signal One 4-20 mA signal represents the O value. Superimposed on the O signal is the F Fieldbus information accessible through a handheld OUNDATION communicator or AMS Device Manager software. The O signal is at the AOUT 1 terminals.
  • Page 10 Quick Start Guide October 2019 Figure 2-1: Line Voltage, Earth, and 4-20 mA Connections A. Alarm output relay terminal block ™ B. F Fieldbus OUNDATION ® C. HART D. Signal output terminal block E. Ground stud F. Earth ground typical for electronics and sensor housing G.
  • Page 11 October 2019 Quick Start Guide K. External tooth locks washer L. Signal port ¾ NPT M. Power port ¾ NPT Quick Start Guide...
  • Page 12 Quick Start Guide October 2019 Figure 2-2: Electrical Connections Between Remote Electronics and Sensor Housing A. Heater power connector (J3) B. Heater power cable C. O sensor and thermocouple connector (J5) D. To ground screw E. COe sensor and cold junction connector (J4) F.
  • Page 13 October 2019 Quick Start Guide Figure 2-3: Signal Wiring or Cable Note For RFI/CE compliance, the connector must provide 360 degrees of electrical contact to the cable shield. A. Strip wire ends 3/16-in. typical B. Stud size #10 C. Heat shrink tubing 2-in. long ½-in. size ®...
  • Page 14 Quick Start Guide October 2019 Figure 2-4: Heater Wiring or Cable A. Strip wire ends 3/16-in. typical B. Green, 16 AWG C. Stud size #10 D. Heat shrink tubing 2-in. long, ½-in. size E. 2.0 ± .25 typical F. 4.25-in. long Teflon tubing, 0.042-in. ID. (Cut off drain wire at probe end of shield).
  • Page 15 October 2019 Quick Start Guide your transmitter. Refer to the following sections and select the option that applies to your transmitter configuration. 2.4.1 Reference air set option (only) When no options or only the reference air set option is equipped, use the following procedure to install the pneumatic system components.
  • Page 16 Quick Start Guide October 2019 Figure 2-5: Pneumatic Installation, Rosemount OCX8800 with Reference Air Set without Autocalibration A. Sensor housing B. Eductor air in C. Electronics housing D. Calibration gas in E. Reference air in F. Dilution air in G. Dilution air flow meter 0.1 scfh H.
  • Page 17 October 2019 Quick Start Guide O. Flow meter 1-10 scfh P. Flow meter 0.05-0.5 scfh 2.4.2 Reference air set and solenoids option without COe zero function When the reference air set and test gas solenoids are included with your transmitter, use the following procedure to install the pneumatic system components.
  • Page 18 Quick Start Guide October 2019 Figure 2-6: Pneumatic Installation, Rosemount OCX8800 with Reference Air Set, Solenoids, and Autocalibration, without COe Zero Function A. Sensor housing B. Eductor air in C. Electronics housing D. Calibration gas in E. Reference air in F.
  • Page 19 October 2019 Quick Start Guide O. Flow meter 1-10 scfh P. Flow meter 0.05-0.5 scfh Q. Calibration gas out 2.4.3 Reference air set and solenoids option with COe zero function Figure 2-7 shows the piping arrangement for the transmitter with autocalibration when the COe Zero Function is used.
  • Page 20 Quick Start Guide October 2019 Figure 2-7: Pneumatic Installation, Rosemount OCX8800 with Reference Air Set, Solenoids, and Autocalibration, with COe Zero Function A. Sensor housing B. Eductor air in C. Electronics housing D. Calibration gas in E. Reference air in F.
  • Page 21 October 2019 Quick Start Guide O. Flow meter 1-10 scfh P. Flow meter 0.05-0.5 scfh Q. Calibration gas out Note If instrument is to be used as the high O calibration gas, the low O and COe calibration gases must also be set to the same pressure (i.e. 35 psig). 2.4.4 Reference air set, solenoids, and blowback option with COe zero function...
  • Page 22 Quick Start Guide October 2019 Figure 2-8: Pneumatic Installation, Rosemount OCX with Reference Air Set, Solenoids, Blowback and Autocalibration, with COe Zero Function A. Sensor housing B. Eductor air in C. Electronics housing D. Reference air in E. Dilution air in F.
  • Page 23 October 2019 Quick Start Guide O. Normally open solenoid valve P. Normally closed solenoid valve Q. Blowback valve, air operated R. Two-in. pressure gauge 0-60 psig S. Combination filter-reg. 0-60 psig T. Flow meter 1-10 scfh U. Flow meter 0.05-0.5 scfh V.
  • Page 24 Quick Start Guide October 2019 3. See the upper leg of the instrument air supply. Connect the output of the 35 psi regulator/filter to one port of the normally closed air- operated solenoid valve, and to the inlet side of the dilution air flow meter.
  • Page 25 October 2019 Quick Start Guide Figure 2-9: Pneumatic Installation, Rosemount OCX8800 with Reference Air Set, Solenoids, Blowback, and Autocalibration without COe Zero Function A. Sensor housing B. Eductor air in C. Electronics housing D. Reference air in E. Dilution air in F.
  • Page 26 Quick Start Guide October 2019 O. Normally open solenoid valve P. Normally closed solenoid valve Q. Blowback valve, air operated R. Two-in. pressure gauge 0-60 psig S. Combination filter-reg. 0-60 psig T. Flow meter 1-10 scfh U. Flow meter 0.05-0.5 scfh V.
  • Page 27 October 2019 Quick Start Guide Figure 2-10: Pneumatic Installation, Blowback Panel without Autocalibration without COe Zero Function A. Sensor housing B. Eductor air in C. Electronics housing D. Calibration gas in E. Reference air in F. Dilution air in G. Instrument air H.
  • Page 28 Quick Start Guide October 2019 M. Instrument air supply N. Instrument air to electronics O. Two-stage regulators P. Actuating air Q. Check valve Quick Start Guide...
  • Page 29 October 2019 Quick Start Guide Figure 2-11: Pneumatic Installation, Blowback Panel with Autocalibration without COe Zero Function A. Sensor housing B. Eductor air in C. Electronics housing D. Calibration gas in E. Reference air in F. Dilution air in G. Instrument air H.
  • Page 30 Quick Start Guide October 2019 K. Blowback air out L. Blowback control air M. Instrument air supply N. Instrument air to electronics O. Two-stage regulators P. Actuating air Q. Check valve Quick Start Guide...
  • Page 31 October 2019 Quick Start Guide Figure 2-12: Pneumatic Installation, Blowback Panel with Autocalibration with COe Zero Function A. Sensor housing B. Eductor air in C. Electronics housing D. Calibration gas in E. Reference air in F. Dilution air in G. Instrument air H.
  • Page 32 Quick Start Guide October 2019 K. Blowback air out L. Blowback control air M. Instrument air supply N. Instrument air to electronics O. Two-stage regulators P. Actuating air Q. Check valve Quick Start Guide...

  • Page 33: Configuration And Startup

    3.1.1 Verify configuration - HART electronics There are three switches on the microprocessor board which are user configurable for the Rosemount OCX8800 with HART electronics (Figure 3-1). SW1 determines if the O 4-20 mA signal is internally or externally powered.
  • Page 34 Quick Start Guide October 2019 Figure 3-1: Rosemount OCX8800 Defaults - HART Electronics A. Switch default positions shown B. O 21.1 mA / 3.5 mA: O 4-20 mA signal Rail limits: Open High: 21.1 mA Closed Low: 3.5 mA COe 21.1 mA/3.5 mA: COe 4-20 mA signal Rail limits: Open High: 21.1 mA...
  • Page 35 October 2019 Quick Start Guide SW2: The two settings are internally or externally powering the COe 4-20 mA signal. The factory setting is for the COe 4-20 mA signal to be internally powered. SW3: The factory sets this switch as follows: •...
  • Page 36 The blowback feature requires the optional blowback hardware to be properly installed external to the transmitter. A Rosemount OCX8800 shipped from the factory must be configured before blowback can be implemented. This same process must be performed any time a replacement card stack is installed.
  • Page 37 October 2019 Quick Start Guide ® 3.5.1 Configure blowback with the Field Communicator - HART Procedure 1. Use the Field Communicator or AMS software to access the HART menu. 2. From the DETAILED SETUP menu, select INPUT/OUTPUT. 3. From the INPUT/OUTPUT menu, select BLOWBACK. 4.
  • Page 38 The COe zero feature is only valid if the transmitter is supplied with calibration solenoids and the solenoids have been activated. A Rosemount OCX8800 shipped from the factory must be configured before the COe zero feature can be implemented. This same process must be performed any time a replacement card stack is installed.
  • Page 39 October 2019 Quick Start Guide 3.6.1 Configure the COe zero feature with the Field Communicator - ® HART Procedure 1. Use the Field Communicator or AMS software to access the HART menu. 2. From the DETAILED SETUP menu, select INPUT/OUTPUT. 3.
  • Page 40 Quick Start Guide October 2019 • COe Zero Flow - Length of time COe zero gas flows. Range is 120 to 600 seconds. Default is 120 seconds. • COe Zero Purge - Length of time after COe zero is complete before oxygen/combustibles readings are considered valid.

  • Page 41: Using The Loi

    October 2019 Quick Start Guide Using the LOI LOI controls This section provides details about the Local Operator Interface (LOI) control functions for the Rosemount OCX8800 Transmitter. 4.1.1 LOI assembly Figure 4-1: LOI Assembly A. Touch confirmation LED B. Selection arrow C.
  • Page 42 Quick Start Guide October 2019 digits of a parameter value are entered and the cursor is moved to its left- most position. When the Enter key is touched, the new parameter value, if accepted, will appear in the top line of the display. The blue (bottom left) key acts as a selector when choosing from among several menu items.
  • Page 43 October 2019 Quick Start Guide Figure 4-2: ‘Z’ Pattern Entry Quick Start Guide...

  • Page 44: Calibration

    Quick Start Guide October 2019 Calibration Fully automatic calibration If the transmitter is equipped with calibration solenoids, the unit can be programmed to automatically calibrate without any operator action. Refer to the following paragraphs for using the LOI or Field Communicator to set up the transmitter for fully automatic calibration.
  • Page 45 October 2019 Quick Start Guide To return to a preceding menu, press the left arrow key. 5. From the O CALIB PARAMS screen, select CalIntrvl. 6. At the prompt, input a time interval (in hours) at which an automatic calibration will occur and press ENTER. 7.
  • Page 46 Quick Start Guide October 2019 3. From the Cal Control submenu, use the right-pointing key to select the third column Start Cal O option. 4. Remain at the Start Cal O option or use the down-pointing key to select the Start Cal COe option or Start Cal Both option. The following sequence applies when Start Cal Both is selected.
  • Page 47 October 2019 Quick Start Guide Procedure 1. Select DIAG/SERVICE from DEVICE SETUP menu. 2. Select CALIBRATION from the DIAG/SERVICE menu. 3. Select CAL CONTROL from the CALIBRATION menu. 4. Select CAL METHODS from the CAL CONTROL menu. 5. From the CAL METHODS menu, select the type of calibration desired: Calibration.
  • Page 48 Quick Start Guide October 2019 Operator step command is not accepted at this time. The Next Cal Step command is not accepted at this time. When ready, Calibration Status will stop at the AppO 11. Switch off the O Low Gas and switch on the O High Gas.
  • Page 49 October 2019 Quick Start Guide 5. From the CAL METHODS menu, select the type of calibration desired: COe Calibration. In the first Calibration screen, a Loop should be removed warning appears. from automatic control 6. Remove the transmitter from any automatic control loops to avoid a potentially dangerous operating condition and press OK.
  • Page 50 Quick Start Guide October 2019 The calibration status should automatically change to FlowCOeHI and then ReadCOeHigh for a period of time. During this period, if you try to go to the next calibration step by pressing OK and selecting START CAL/STEP CAL, you will be prompted with Operator step .
  • Page 51 October 2019 Quick Start Guide • O2: 0.4 %, 85.95mV • COe: 0.20 ppm • OK/NEXT to Select • ABORT/CANCEL to Exit 8. From the SELECT ACTION screen, select START CAL/STEP CAL to continue calibration, select ABORT CAL to abort calibration, or select EXIT CAL to exit calibration method.
  • Page 52 Quick Start Guide October 2019 14. Select START CAL/STEP CAL to start applying the COe Gas. The time to apply the test gas is specified by the Gas Time. The Calibration Status should automatically change to FIowO and then ReadO Low for a period of time.

  • Page 53: Product Certifications

    A copy of the EU Declaration of Conformity can be found at the end of the Quick Start Guide. The most recent revision of the EU Declaration of Conformity can be found at Emerson.com/Rosemount. Ordinary location certification As standard, the transmitter has been examined and tested to determine...
  • Page 54 2. The pressure within the enclosure and gas lines shall not be higher than 1.1 times the atmospheric pressure during the normal operation of the equipment. 3. Flameproof joints are not intended to repaired. Rosemount OCX8800 Oxygen/Combustibles Transmitter (OCX88C) for Hazardous Locations 6.5.1 Certificate: 1602514 Standards: C22.2 No.
  • Page 55 October 2019 Quick Start Guide UL 50 (Tenth Edition) Markings: Class 1, Zone 1, AEx db IIB+H T* Gb Ex db IIB+H T* Gb Type 4X, IP66** *Sensor assembly enclosure: T3 (-40 °C <= Tamb <= +100 °C) *Electronics assembly enclosure: T6 (-40 °C <= Tamb <= +65 °C) *Integral configuration: T3 (-40 °C <= Tamb <= +65 °C) **when reference air vents are routed to a dry area...
  • Page 56 Quick Start Guide October 2019 *Electronics assembly enclosure: T6 (-40 °C <= Tamb <= +65 °C) *Integral configuration: T3 (-40 °C <= Tamb <= +65 °C) **when reference air vents are routed to a dry area Special Conditions for Safe Use (X): 1.
  • Page 57 October 2019 Quick Start Guide 6.5.4 International IECEx Certificate: IECEx CSA 10.0002X Standards: IEC 60079-0: 2017 Edition 7.0 IEC 60079-1: 2014-06 Edition 7.0 Markings: Transmitter: Ex db IIB+H T6 Gb; Tamb: -40 °C to 65 °C Sensor: Ex db IIB+H T3 Gb;...

  • Page 58: Declaration Of Conformity

    Quick Start Guide October 2019 Declaration of Conformity Quick Start Guide...
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  • Page 64 Linkedin.com/company/Emerson- Automation-Solutions The Emerson logo is a trademark and service mark of Emerson Electric Co. Rosemount is a twitter.com/rosemount_news mark of one of the Emerson family of companies. Facebook.com/Rosemount All other marks are the property of their youtube.com/RosemountMeasurement respective owners.