Emerson Rosemount 644 Quick Start Manual
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Emerson Rosemount 644 Quick Start Manual

Emerson Rosemount 644 Quick Start Manual

Rail mount temperature transmitter with rk option and hart 7 protocol
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Quick Start Guide
00825-0600-4728, Rev AE
June 2024
Rosemount
644 Rail Mount
™
Temperature Transmitter
with RK Option and HART
7 Protocol
®

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Summary of Contents for Emerson Rosemount 644

  • Page 1 Quick Start Guide 00825-0600-4728, Rev AE June 2024 Rosemount 644 Rail Mount ™ Temperature Transmitter with RK Option and HART 7 Protocol ®...

  • Page 2: Table Of Contents

    Quick Start Guide June 2024 Contents About this guide........................... 3 System readiness......................... 6 Transmitter installation....................... 7 Configuration..........................13 Transmitter installation......................16 Safety instrumented systems....................19 Product certifications........................ 20 China RoHS..........................33 Rosemount 644R...

  • Page 3: About This Guide

    Refer to the Rosemount 644R Rail Mount Reference Manual for more instructions. The manual and this guide are also available electronically on Emerson.com. Safety messages  WARNING Follow instructions Failure to follow these installation guidelines could result in death or serious injury.
  • Page 4 Quick Start Guide June 2024  WARNING Explosions Explosions could result in death or serious injury. Installation of the transmitters in a hazardous environment must be in accordance with the appropriate local, national, and international standards, codes, and practices. Kindly review the Product Certifications section for any restrictions associated with a safe installation.
  • Page 5 The products described in this document are NOT designed for nuclear-qualified applications. Using non-nuclear qualified products in applications that require nuclear-qualified hardware or products may cause inaccurate readings. For information on Emerson nuclear-qualified products, contact your local Emerson Sales Representative. Quick Start Guide...

  • Page 6: System Readiness

    Quick Start Guide June 2024 2  System readiness 2.1  Confirm HART revision capability ® If using HART-based control or AMS, confirm the HART capability of those systems prior to transmitter installation. Not all systems are capable of communicating with HART Revision 7 protocol.

  • Page 7: Transmitter Installation

    June 2024 Quick Start Guide 3  Transmitter installation 3.1  Safety messages Instructions and procedures in this section may require special precautions to ensure the safety of the personnel performing the operations. Information that potentially raises safety issues is indicated by a warning symbol. Please refer to the following safety messages before performing an operation preceded by this symbol.
  • Page 8 Quick Start Guide June 2024 3.2  Connections Single input connection 2-wire / 3-wrire / Thermocouple 3-wire / 4-wire 4 w-wire RTD or (TC) (internal CJC potentiometer lin. R or external 2- wire / 3-wire / 4- wire CJC) 41 42 41 42 41 42 3 I1 When using thermocouple input, you can configure the...
  • Page 9 June 2024 Quick Start Guide Output 2-wire installation 11 12 3.3  Multidrop mode Communication with up to 63 uniquely numbered transmitters in parallel on a digital HART 2-wire system can be facilitated using ® either a HART communicator or a HART modem connected across terminals BC or CD, requiring transmitters to be in multidrop mode with a 4 mA signal and a total loop current not exceeding 252 mA.
  • Page 10 Quick Start Guide June 2024 Figure 3-1: Multidrop connection A. Power supply B. Connection C. Connection D. Connection E. 250 Ω < R < 1100 Ω load F. Transmitter Rosemount 644R...
  • Page 11 June 2024 Quick Start Guide 3.4  Reinstall terminal connectors You can remove the terminal connectors to install sensor and power wiring. To reinstall terminal connectors: Procedure 1. Align the terminal connectors with the internal pins. 2. Rotate the plastic hooks so that they are properly engaged in the supporting plastic piece.
  • Page 12 Quick Start Guide June 2024 3. Push down the terminal connector to properly set it into place. Improper seating can cause the hooks to wedge against the supporting plastic and cause the connector to unseat. Rosemount 644R...

  • Page 13: Configuration

    June 2024 Quick Start Guide 4  Configuration 4.1  Safety messages Instructions and procedures in this section may require special precautions to ensure the safety of the personnel performing the operations. Information that potentially raises safety issues is indicated by a warning symbol. Please refer to the following safety messages before performing an operation preceded by this symbol.
  • Page 14 Configuration methods You can configure the transmitter using a HART communicator with ® Emerson's DDL driver or through a programming framework like AMS Device Manager or PACTware, both requiring product-specific software support from sources such as the FieldComm Group or Emerson.
  • Page 15 June 2024 Quick Start Guide Figure 4-2: Programming framework A. Transmitter B. 250 Ω < R < 1100 Ω load C. Process computer D. DCS, etc. Quick Start Guide...

  • Page 16: Transmitter Installation

    Quick Start Guide June 2024 5  Transmitter installation 5.1  Rail mount transmitter with remote mount sensor The basic assembly configuration consists of a remote-mounted transmitter, an integral mount sensor with terminal block, an integral style connection head, a standard extension, and a threaded thermowell.
  • Page 17 June 2024 Quick Start Guide 6. Run sensor lead wires from the sensor assembly to the transmitter. 7. Attach the sensor and power leads to the transmitter. NOTICE Avoid contact with leads and terminals. 5.2  Rail mount transmitter with threaded sensor The most basic temperature sensor assembly consists of a threaded sensor with flying leads, a threaded connection head, a union and nipple extension, and a threaded thermowell.
  • Page 18 Quick Start Guide June 2024 8. Attach and tighten the connection head cover. Enclosure covers must be fully engaged to meet explosion- proof requirements. 9. Attach the sensor and power leads to the transmitter. NOTICE Avoid contact with leads and terminals. Rosemount 644R...

  • Page 19: Safety Instrumented Systems

    June 2024 Quick Start Guide 6  Safety instrumented systems For safety-certified installations, refer to the Rosemount 644R Rail Mount Temperature Transmitter Reference Manual. The manual is available electronically at Emerson.com or by contacting an Emerson representative. Quick Start Guide...

  • Page 20: Product Certifications

    European Directive information 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/global. 7.2  Ordinary location certification...
  • Page 21 June 2024 Quick Start Guide (continued) Table 7-1: IS input parameters vs. temperature range Input parameters Temperature Input parameters Temperature (Terminals 11, 12) range (Terminals 11, 12) range : 900 mW T6: -50 °C ≤ T ≤ +55 : 750 mW T6: -50 °C ≤...
  • Page 22 Quick Start Guide June 2024 3. The transmitter must be installed in suitable enclosure to meet installation codes stipulated in the Canadian Electrical Code (CEC) or for the US the National Electrical Code (NEC). 4. If the enclosure is made of non-metallic materials or of painted metal, electrostatic charging shall be avoided.
  • Page 23 June 2024 Quick Start Guide (continued) Table 7-4: IS input parameters vs. temperature range Input Temperature Input Temperature parameters range parameters range (Terminals 11, (Terminals 11, : 1.0 nF : 1.0 nF Table 7-5: IS output paramters per terminal configuration Parameters One sensor using Sensor using one set all output terminals...
  • Page 24 Quick Start Guide June 2024 4. If the enclosure is made of non-metallic materials or of painted metal, electrostatic charging shall be avoided. 5. For Div 2/Zone 2 applications, the transmitter must be installed in an enclosure providing a degree of protection of at least IP54 according to IEC60529 that is suitable for the application and is correctly installed.
  • Page 25 June 2024 Quick Start Guide Pi per Channel Temperature class Maximum ambient temperature +70 °C +85 °C 610 mW +60 °C +75 °C +85 °C Special Conditions for Safe Use (X): 1. For all potentially explosive atmospheres, if the enclosure is made of non-metallic materials, or if it is made of metal having a paint layer thicker than 0.2 mm (group IIC), or 2 mm (group IIB, IIA, I), or any thickness (group III), electrostatic charges...
  • Page 26 Quick Start Guide June 2024 Table 7-7: Supply/input to transmitter Temperature Maximum class ambient temperature Ex nA & Ex ec Ex ic Ex ic Single and dual input = 0 µH = 48 Vdc = 1.0 nF = 0 µH = 1.0 nF = 37 Vdc U = 37 Vdc = 851 mW...
  • Page 27 June 2024 Quick Start Guide 4. For EPL Dc, the surface temperature “T” of the enclosure, for a dust layer with a maximum thickness of 0.19685039 in. (5 mm), is the ambient temperature +20K. 7.7  International 7.7.1  I7 IECEx Intrinsic Safety IECEx DEK 21.0002X Certificate Ex ia IIC T6…T4 Ga...
  • Page 28 Quick Start Guide June 2024 Special Conditions for Safe Use (X): 1. For all potentially explosive atmospheres, if the enclosure is made of non-metallic materials, or if it is made of metal having a paint layer thicker than 0.00787402 in. (0.2 mm) (Group IIC), or 0.07874016 in.
  • Page 29 June 2024 Quick Start Guide Table 7-10: Maximum output of transmitter Ex nA & Ex ec One sensor using Sensor using one set all output terminals of output terminals (41-54) (41-44 or 51-54) Vmax = 7.2 Vdc 7.2 Vdc 7.2 Vdc 12.9 mA 7.3 mA 23.3 mW...
  • Page 30 Quick Start Guide June 2024 7.8.2  N3 China (NEPSI) Zone 2 GYJ21.1036X Certificate Ex nA [ic Gc] IIC T6…T4 Gc Markings Ex ic IIC T6…T4 Gc Special Condition for Safe Use (X): See certificate for special conditions. Rosemount 644R...
  • Page 31 June 2024 Quick Start Guide 7.9  Declaration of conformity Quick Start Guide...
  • Page 32 Quick Start Guide June 2024 Rosemount 644R...

  • Page 33: China Rohs

    June 2024 Quick Start Guide 8  China RoHS Quick Start Guide...
  • Page 34 Quick Start Guide June 2024 Rosemount 644R...
  • Page 35 June 2024 Quick Start Guide Quick Start Guide...
  • Page 36 2024 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. All other marks are the property of their respective owners.

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