Emerson Rosemount 8712EM Quick Start Manual
  1. Manuals
  2. Brands
  3. Emerson Manuals
  4. Transmitter
  5. Rosemount 8712EM
  6. Quick start manual
Emerson Rosemount 8712EM Quick Start Manual

Emerson Rosemount 8712EM Quick Start Manual

Transmitter with hart protocol
Hide thumbs
Table of Contents

Advertisement

Quick Links

Quick Start Guide
00825-0100-4445, Rev AB
November 2017
®
Rosemount
8712EM Transmitter with
HART Protocol

Advertisement

Table of Contents
loading

Related Manuals for Emerson Rosemount 8712EM

Summary of Contents for Emerson Rosemount 8712EM

  • Page 1 Quick Start Guide 00825-0100-4445, Rev AB November 2017 ® Rosemount 8712EM Transmitter with HART Protocol...
  • Page 2 Quick Start Guide November 2017 Safety WARNING! • Failure to follow these installation guidelines could result in serious injury or death. • Installation and servicing instructions are for use by qualified personnel only. Do not perform any servicing other than that contained in the operating instructions, unless qualified.

  • Page 3: Return Policy

    For additional installation information, configuration, maintenance, and ® troubleshooting, refer to the Rosemount 8712EM Transmitter with HART Protocol Reference Manual All user documentation can be found at www.emerson.com. For more contact information see Section 2.2. Return policy Emerson procedures must be followed when returning equipment. These...

  • Page 4: Emerson Flow Customer Service

    Quick Start Guide November 2017 Emerson Flow customer service Email: • Worldwide: flow.support@emerson.com • Asia-Pacific: APflow.support@emerson.com Telephone: North and South America Europe and Middle East Asia Pacific United States 800 522 6277 U.K. 0870 240 1978 Australia 800 158 727...

  • Page 5: Pre-Installation

    November 2017 Quick Start Guide Pre-installation Before installing the transmitter, there are several pre-installation steps that should be completed to make the installation process easier: • Identify options and configurations that apply to your application • Set the hardware switches if necessary •...
  • Page 6 Quick Start Guide November 2017 Be sure to identify any additional options and configurations that apply to the installation. Keep a list of these options for consideration during the installation and configuration procedures. Mechanical considerations The mounting site for the transmitter should provide enough room for secure mounting, easy access to conduit entries, full opening of the transmitter covers, and easy readability of the Local Operator Interface (LOI) screen (if equipped).
  • Page 7 November 2017 Quick Start Guide Figure 3-1: Rosemount 8712EM Dimensional Drawing 3.12 [229] 2.81 3.51 [79] [71] [89] 12.03 [306] 11.15 [283] 17.68 [449] 1.94 1.94 [49] [49] 1.70 11.36 [43] [289] 1.59 [40] 3.90 7.80 [99] [198] A. Conduit entry, 1/2-14 NPT (4 places) B.

  • Page 8: Environmental Considerations

    Quick Start Guide November 2017 the proper power supply, conduit, and other accessories necessary to comply with these standards. The transmitter requires external power. Ensure access to a suitable power source. Table 3-2: Electrical Data Rosemount 8712EM Flow Transmitter Power input AC power: 90–250VAC, 0.45A, 40VA Standard DC power:...

  • Page 9: Pipe Mounting

    November 2017 Quick Start Guide Mounting Wall mount transmitters are shipped with mounting hardware for use on a 2- in. pipe or flat surface. Figure 4-1: Mounting bracket A. U-bolt B. Saddle clamp C. Fasteners Pipe mounting 1. Attach the saddle clamp to the pipe using the U-bolt mounting hardware. 2.

  • Page 10: Surface Mounting

    Quick Start Guide November 2017 Surface mounting Attach the transmitter to the mounting location using customer supplied mounting screws. The installation of the transmitter shall be rated for four (4) times the weight of the transmitter or 44lbs ( 20kgs). Rosemount 8712EM Transmitter with HART Protocol...

  • Page 11: Conduit Requirements

    November 2017 Quick Start Guide Wiring Conduit entries and connections Transmitter conduit entries ports are ½"-14NPT as standard, M20 conduit connections will use an adapter. Conduit connections should be made in accordance with national, local, and plant electrical codes. Unused conduit entries should be sealed with the appropriate certified plugs.
  • Page 12 Quick Start Guide November 2017 Figure 5-1: Best practice conduit preparation A. Safety ground B. Power C. Coil D. Output E. Electrode Sensor to transmitter wiring Wiring details Cables kits are available as individual component cables or as a combination coil/electrode cable.
  • Page 13 November 2017 Quick Start Guide Table 5-1: Component cable kits - standard temperature (-20°C to 75°C) Cable kit # Description Individual cable Alpha p/n 08732-0065-0001 Kit, component ca- Coil 2442C (feet) bles, Std temp (in- Electrode 2413C cludes Coil and Elec- trode) 08732-0065-0002 Kit, component ca-...
  • Page 14 Quick Start Guide November 2017 Cable requirements Shielded twisted pairs or triads must be used. For installations using the individual coil drive and electrode cable, see Figure 5-2. Cable lengths should be limited to less than 500 feet (152 m). Consult factory for length between 500–1000 feet (152–304 m).
  • Page 15 November 2017 Quick Start Guide Figure 5-2: Individual component cables 17 18 19 A. Coil drive B. Electrode C. Twisted, stranded, insulated 14 AWG conductors D. Drain E. Overlapping foil shield F. Outer jacket G. Twisted, stranded, insulated 20 AWG conductors •...

  • Page 16: Cable Preparation

    Quick Start Guide November 2017 Figure 5-3: Combination coil and electrode cable A. Electrode shield drain B. Overlapping foil shield C. Outer jacket • 1 = Red • 2 = Blue • 3 = Drain • 17 = Reference • 18 = Yellow •...
  • Page 17 November 2017 Quick Start Guide removal of insulation may result in an unwanted electrical short to the transmitter housing or other terminal connections. Excessive unshielded length, or failure to connect cable shields properly, may also expose the unit to electrical noise, resulting in an unstable meter reading. Quick Start Guide...
  • Page 18 Quick Start Guide November 2017 Figure 5-4: Cable ends A. Coil B. Electrode C. Combination D. Unshielded length WARNING! Shock hazard! Potential shock hazard across remote junction box terminals 1 and 2 (40V). WARNING! Explosion hazard! Electrodes exposed to process. Use only compatible transmitter and approved installation practices.
  • Page 19 November 2017 Quick Start Guide Remote junction box terminal blocks Figure 5-5: Remote junction box views A. Sensor B. Transmitter Table 5-4: Sensor/transmitter wiring Wire color Sensor terminal Transmitter terminal Blue Shield 3 or Float Black Yellow White Note For hazardous locations, refer to the product reference manual. Quick Start Guide...

  • Page 20: Wiring Diagrams

    Quick Start Guide November 2017 Wiring diagrams Figure 5-6: Wiring 8712EM using component cable Rosemount 8712EM Transmitter with HART Protocol...
  • Page 21 November 2017 Quick Start Guide Figure 5-7: Wiring 8712EM using combination cable Quick Start Guide...
  • Page 22 Quick Start Guide November 2017 Power and I/O terminal blocks Open the bottom cover of the transmitter to access the terminal block. Note To connect pulse output and/or discrete input/output, and for installations with intrinsically safe outputs, refer to the product reference manual. Figure 5-8: 8712EM Terminal blocks 9 10...

  • Page 23: Powering The Transmitter

    November 2017 Quick Start Guide Powering the transmitter The transmitter is available in three models. The AC powered transmitter is designed to be powered by 90–250VAC (50/60Hz). The DC powered transmitter is designed to be powered by 12–42VDC. The low power transmitter is designed to be powered by 12–30VDC.
  • Page 24 Quick Start Guide November 2017 Figure 5-10: Apparent power A. Apparent power (VA) B. Power supply (VAC) DC power supply requirements Standard DC units powered by 12VDC power supply may draw up to 1.2A of current steady state. Low power DC units may draw up to 0.25A of current steady state.
  • Page 25 November 2017 Quick Start Guide Figure 5-12: Low power DC current requirements 0.25 0.15 0.05 A. Supply current (amps) B. Power supply (VDC) Supply wire requirements Use 10–18 AWG wire rated for the proper temperature of the application. For wire 10–14 AWG use lugs or other appropriate connectors. For connections in ambient temperatures above 122 °F (50 °C), use a wire rated for 194 °F (90 °C).

  • Page 26: Power Terminals

    Quick Start Guide November 2017 Table 5-6: Fuse requirements (continued) Power system Power supply Fuse rating Manufacturer DC low power 12–30VDC 3 Amp quick acting Bussman AGC3 or equivalent Power terminals For AC powered transmitter (90–250VAC, 50/60 Hz): • Connect AC Neutral to Terminal N and AC Line to Terminal L1. For DC powered transmitter: •...
  • Page 27 November 2017 Quick Start Guide Note For more information about the analog output characteristics, refer to the product reference manual. Internal Power Figure 5-13: Analog output wiring, internal power A. 4–20 mA (–) to Terminal #7 B. 4–20 mA (+) to Terminal #8 Note Terminal polarity for the analog output is reversed between internally and externally powered.
  • Page 28 Quick Start Guide November 2017 External power Figure 5-14: Analog output wiring, external power A. Power supply • (+) to Terminal #7 • (–) to Terminal #8 Note Terminal polarity for the analog output is reversed between internally and externally powered. Rosemount 8712EM Transmitter with HART Protocol...
  • Page 29 November 2017 Quick Start Guide Figure 5-15: Analog loop load limitations 10.8 A. Load (ohms) B. Power supply (volts) C. Operating region • = 31.25 (V –10.8) • = power supply voltage (volts) • Rmax = maximum loop resistance (ohms) Quick Start Guide...

  • Page 30: Basic Configuration

    Quick Start Guide November 2017 Basic Configuration Once the magnetic flowmeter is installed and power has been supplied, the transmitter must be configured through the basic setup. These parameters can be configured through either an LOI or a HART communication device. Configuration settings are saved in nonvolatile memory within the transmitter.

  • Page 31: Calibration Number

    November 2017 Quick Start Guide Calibration number The sensor calibration number is a 16-digit number generated at the factory during flow calibration, is unique to each sensor, and is located on the sensor tag. Local operator interface (LOI) To access the transmitter menu, press the XMTR MENU key. Use the UP, DOWN, LEFT(E), and RIGHT arrows to navigate the menu structure.
  • Page 32 © Emerson Automation Solutions Japan 2017 Rosemount, Inc. All rights reserved. 1-2-5, Higashi Shinagawa The Emerson logo is a trademark and service mark Shinagawa-ku of Emerson Electric Co. Rosemount, 8600, 8700, Tokyo 140-0002 Japan 8800 marks are marks of one of the Emerson T +81 3 5769-6803 Automation Solutions family of companies.

Table of Contents