Emerson Rosemount 775THUM Reference Manual
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Emerson Rosemount 775THUM Reference Manual

Emerson Rosemount 775THUM Reference Manual

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Reference Manual
00809-0100-4075, Rev CE
January 2023
Emerson
™
Wireless 775THUM
™
Adapter

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Summary of Contents for Emerson Rosemount 775THUM

  • Page 1 Reference Manual 00809-0100-4075, Rev CE January 2023 Emerson ™ Wireless 775THUM ™ Adapter...
  • Page 2 NOTICE The THUM Adapter and all other wireless devices should be installed only after the Emerson Wireless Gateway has been installed and is functioning properly. Wireless devices should also be powered up in order of proximity from the Gateway, beginning with the closest.

  • Page 3: Table Of Contents

    6.2 Service support.......................... 47 Appendix A  Specifications and reference data..................49 A.1 Functional specifications......................49 A.2 Physical specifications......................49 A.3 Performance specifications..................... 51 Appendix B  Dimensional Drawings......................53 Appendix C  Product Certifications......................55 C.1 European Directive Information..................... 55 C.2  Ordinary location certification from FM Approvals............. 55 Emerson.com/Rosemount...
  • Page 4 D.4 Optimizing lead time........................ 61 D.5 Required model components....................61 D.6 Model............................61 D.7 Output............................62 D.8 Housing............................62 D.9 Mounting connection....................... 62 D.10 PlantWeb functionality......................62 D.11 Certification..........................63 D.12 Wireless update rate, operating frequency, and protocol..........63 ™ D.13 Omni-directional antenna and SmartPower solutions............ 63 D.14 Accessories..........................63 Appendix E  Dimensional drawings......................65 Emerson.com/Rosemount...

  • Page 5: Chapter 1 Introduction

    Reference Manual Introduction 00809-0100-4075 January 2023 1  Introduction 1.1  Using the Manual This manual is designed to assist in the installation, operation, and maintenance of the Emerson Wireless 775 THUM Adapter. ™ ™ Introduction • Manual and transmitter overview • Considerations Configuration •...

  • Page 6: Considerations

    Verify that the operating environment of the transmitter is consistent with the appropriate hazardous locations certifications. Table 1-1: Temperature Limits Operating limit Storage limit –40 to 185 °F –40 to 185 °F –40 to 85 °C –40 to 85 °C Emerson.com/Rosemount...
  • Page 7 Gateway, beginning with the closest. This will result in a simpler and faster network installation. Enable active advertising on the Gateway to ensure that new devices join the network faster. For more information see the Emerson Wireless 1420 Gateway Reference Manual. THUM Adapter position ™...
  • Page 8 When adding a load resistor, ensure that uninsulated conductors do not contact the enclosure and/or other exposed metal parts. 1.3.7  Product recycling/disposal Recycling of equipment and packaging should be taken into consideration. The product and packaging should be disposed of in accordance with local and national legislation. Emerson.com/Rosemount...

  • Page 9: Chapter 2 Configuration

    20 cm from all persons. 2.2  Connections Section 2 details wiring the Emerson Wireless THUM Adapter to the different types of compatible sub-devices. 2.3  Configure device sensor The THUM...

  • Page 10: Connection Diagrams

    Field hook-up Field hook-up requirements are detailed in Figure 2-1 Figure 2-2. Figure 2-1: THUM Adapter Only, Powered by a Current Source Green Black White Yellow A. THUM Adapter B. Ground C. 20 mA current source D. HART modem Emerson.com/Rosemount...

  • Page 11: Device Network Configuration

    2.5  Device network configuration 2.5.1  Join device to network In order to communicate with the Emerson Wireless Gateway, and ultimately the Host System, the Emerson THUM Adapter must be configured to communicate over the ™ wireless network. This step is the wireless equivalent of connecting wires from a transmitter to the host system.
  • Page 12 Gateway. To ensure that you can identify the wired device in the Gateway make sure to write the tag information into the message field for all HART 5 devices. For HART 6 or newer devices the THUM Adapter reports the long tag as the HART tag to the Gateway. Emerson.com/Rosemount...

  • Page 13: Hart ® Menu Tree

    Reference Manual Configuration 00809-0100-4075 January 2023 2.6  HART menu tree ® Emerson.com/Rosemount...
  • Page 14 Configuration Reference Manual January 2023 00809-0100-4075 Emerson.com/Rosemount...

  • Page 15: Chapter 3 Mounting

    Direct mount Prerequisites Install the HART device according to standard installation practices and the manufacturer’s instructions. Use an approved thread sealant on all connections. Procedure 1. Attach the THUM Adapter to the wired device as shown in Figure 3-1. Emerson.com/Rosemount...

  • Page 16: Remote Mount

    3.3  Remote mount Prerequisites Install the HART device according to standard installation practices and the manufacturer’s instructions. Use an approved thread sealant on all connections. Procedure 1. The THUM Adapter should be mounted as shown in Figure 3-2. Emerson.com/Rosemount...

  • Page 17: Power Supply

    2.5 V margin at the maximum loop current (25 mA for a typical 4-20 mA/HART device). Limit the power supply to 0.5 Amps maximum, and voltage to 30 Vdc. Loop current THUM Adapter voltage drop 3.5 mA 2.25 mA 25 mA 1.2 V Emerson.com/Rosemount...

  • Page 18: Load Resistor

    In order for the THUM Adapter to function properly there must be at least 250 Ohms resistance in the loop. If the 4–20 mA loop does not have the required resistance, wire a resistor as shown in Figure 3-5, Figure 3-9, or Figure 3-13 as applicable. Emerson.com/Rosemount...
  • Page 19 4 -20 mA Loop + White 4 -20 mA Loop - Yellow + COMM To Wired Device - COMM A. THUM Adapter B. Remote mount housing C. Ground D. Shield wire E. Load resistor ≥ 250 Ω F. Power supply Emerson.com/Rosemount...
  • Page 20 Figure 3-5: Direct Mount Diagram for 2-Wire Device with Resistor Green 4 -20 mA Loop + Black 4 -20 mA Loop - White Yellow - PWR/COMM + PWR/COMM A. THUM Adapter B. Wired device C. Ground D. Splice connector E. Load resistor ≥ 250 Ω F. Power supply Emerson.com/Rosemount...
  • Page 21 4 - 20 mA Loop + White Black 4 - 20 mA Loop - Yellow + COMM To Wired Device - COMM A. THUM Adapter B. Remote mount housing C. Ground D. Shield wire E. Load resistor ≥ 250 Ω F. Power supply Emerson.com/Rosemount...
  • Page 22 E. Load resistor ≥ 250 Ω F. Power supply Note A passive loop exists when the wired device is not supplying power to the 4–20 mA loop. It is important to verify if the wired device is operating in active or passive mode. Emerson.com/Rosemount...
  • Page 23 Green 4 -20 mA Loop + 4 -20 mA Loop - + COMM To Wired Device - COMM A. THUM Adapter B. Remote mount housing C. Ground D. Shield wire E. Load resistor ≥ 250 Ω F. Power supply Emerson.com/Rosemount...
  • Page 24 Figure 3-9: Direct Mount Wiring Diagram for 4-Wire Passive Device with Resistor Green 4 - 20 mA Loop + 4 -20 mA Loop - Black White Yellow A. THUM Adapter B. Wired device C. Ground D. Splice connector E. Load resistor ≥ 250 Ω F. Power supply Emerson.com/Rosemount...
  • Page 25 4 - 20 mA Loop + 4 - 20 mA Loop - + COMM To Wired Device - COMM A. THUM Adapter B. Remote mount housing C. Ground D. Shield wire E. Load resistor ≥ 250 Ω F. Power supply Emerson.com/Rosemount...
  • Page 26 E. Load resistor ≥ 250 Ω F. Input card Note An active loop exists when the wired device is supplying the power to the 4–20 mA loop. It is important to verify if the wired device is operating in active or passive mode. Emerson.com/Rosemount...
  • Page 27 Figure 3-12: Remote Mount Wiring Diagram for 4-Wire Active Device Green + COMM To Wired Device - COMM 4-20 mA Loop + 4-20 mA Loop - A. THUM Adapter B. Remote mount housing C. Ground D. Shield wire E. Load resistor ≥ 250 Ω F. Input card Emerson.com/Rosemount...
  • Page 28 Reference Manual January 2023 00809-0100-4075 Figure 3-13: Direct Mount Wiring Diagram for 4-Wire Active Device with Resistor Green Yellow White Black A. THUM Adapter B. Wired device C. Ground D. Splice connector E. Load resistor ≥ 250 Ω F. Input card Emerson.com/Rosemount...
  • Page 29 COMM - 4 - 20 mA Loop + 4 - 20 mA Loop - A. THUM Adapter B. Remote mount housing C. Ground D. Shield wire E. Load resistor ≥ 250 Ω F. Input card G. To wired device Emerson.com/Rosemount...
  • Page 30 Reference Manual January 2023 00809-0100-4075 Figure 3-15: Direct Mount Wiring Diagram for 4-Wire Active Device with No 4-20 mA Loop Green Yellow White Black A. THUM Adapter B. Wired device C. Ground D. Splice connector E. Load resistor ≥ 250 Ω Emerson.com/Rosemount...
  • Page 31 Figure 3-16: Remote Mount Wiring Diagram for 4-Wire Active Device with No 4–20 mA Loop Black Green White Yellow + COMM To Wired Device - COMM A. THUM Adapter B. Remote mount housing C. Ground D. Load resistor ≥ 250 Ω Emerson.com/Rosemount...
  • Page 32 Figure 3-17: THUM Adapter only, Powered by a 24 V Power Supply with 1200 Ohm resistor to limit current to 20 mA Green Black White Yellow A. THUM Adapter B. Junction box C. Ground D. 250 Ω resistor E. 1200 Ohm resistor required F. 24 V power supply Emerson.com/Rosemount...

  • Page 33: Loop Current Test

    When the THUM Adapter is connected to a valve, this will need to be done at the current source and not from the valve. • When the THUM Adapter is connected to a transmitter, this will need to be performed at the transmitter. 3. Place the THUM Adapter into fixed voltage drop mode. Emerson.com/Rosemount...
  • Page 34 3. Make sure the Time drop down menu at the bottom of the page has Current selected. 4. Under the Voltage Drop drop down menu in the Smart Power Options box, select Fixed Voltage Drop. 5. Select Apply to make any changes. Emerson.com/Rosemount...
  • Page 35 3. Make sure the Time drop down menu at the bottom of the page has Current selected. 4. Under the Voltage Drop drop down menu in the Smart Power Options box, select Variable Voltage Drop. 5. Select Apply to make any changes. Emerson.com/Rosemount...
  • Page 36 1. When communicating to the THUM Adapter, select Configure → Manual setup →  Wired Device → Voltage Drop Mode. 2. In the method, select Variable Voltage Drop. Function Key sequence Menu items Voltage Drop 2,2,2,2 Voltage Drop 3. Remove the loop from high alarm value. Emerson.com/Rosemount...

  • Page 37: Chapter 4 Commissioning

    Join Key so that they match the Network ID and Join Key of the Gateway and other devices in the network. If the Network ID and Join Key are not identical, the Emerson Wireless 775 THUM ™ Adapter will not communicate with the network.

  • Page 38: Network Status

    Adapter was configured with the Network ID and Join Key and sufficient time ™ for network polling has passed, the transmitter should be connected to the network. To verify connectivity, open the Gateway’s integral web interface and navigate to the Explorer page. Figure 4-2: Gateway Explorer Page Emerson.com/Rosemount...

  • Page 39: Verify Operation

    Heard, Number of Join Attempts 4.4.2  Verify operation using Emerson Wireless Gateway If the THUM Adapter was configured with the Network ID and Join Key, and sufficient time has passed for network polling, the transmitter will be connected to the network. To verify device operation and connection to the network with the Gateway’s integrated web server,...
  • Page 40 Device Display, Configure Process Alarms Manual Setup 2, 2 Configure, Manual Setup, Wireless, Pressure, Device Temperatures, Device Information, Display, Other Wireless 2, 2, 1 Network ID, Join Device to Network, Configure Update Rate, Configure Broadcast Power Level, Power Mode, Power Source Emerson.com/Rosemount...

  • Page 41: Operation And Maintenance

    Time to join the network depends on network size and number of devices and if active advertising is turned on in the Gateway. After sufficient time to join has passed go to the Explorer page on the Emerson Wireless Gateway to see if the THUM Adapter has joined. Emerson.com/Rosemount...

  • Page 42: Advanced Setup

    In Fixed mode the THUM will always drop 2.25 volts. Fixed mode is used Fixed Mode for verifying that there is enough voltage on the loop in the loop check procedure. In AMS Device Manager, select Manual Setup → Wired Device. Emerson.com/Rosemount...
  • Page 43 HART loop. The THUM Adapter will continue to send updates for itself and will also act as a wireless node in the wireless network. In AMS Device Manager, select Manual Setup → Other. Emerson.com/Rosemount...
  • Page 44 THUM Adapter to a secondary master. This will not affect the functionality of the THUM Adapter. The number of retries can be set to between two and five. In AMS Device Manager, select Manual Setup → Other. Emerson.com/Rosemount...

  • Page 45: Chapter 6 Troubleshooting

    Symptom Recommended action Wired troubleshooting Wired device does not turn on Check the wiring and connections between Emerson Wireless when THUM Adapter is added to 775 THUM Adapter and wired device. Verify that enough voltage loop is being supplied to power both the THUM Adapter and wired device.
  • Page 46 4. If THUM Adapter is in secondary master mode and Field Communicator or AMS Device Manager is connected to loop this error will occur. 5. The error will disappear after the Field Communicator or AMS Device Manager is removed from the loop. Wireless network troubleshooting Emerson.com/Rosemount...

  • Page 47: Service Support

    5. Create a new network with an additional Gateway 6.2  Service support To expedite the return process outside of North America, contact your Emerson representative. Within the United States, call the Emerson Process Management Response Center toll-free number 1.800.654.7768. The center, which is available 24 hours a day, will assist you with any needed information or materials.
  • Page 48 Troubleshooting Reference Manual January 2023 00809-0100-4075 Emerson.com/Rosemount...

  • Page 49: Appendix A Specifications And Reference Data

    Emerson is not in a position to evaluate or guarantee the compatibility of the process fluid or other process parameters with the product, options, configuration, or materials of construction selected.
  • Page 50 Housing option code D and remote mount kits are enclosure Type 4X and IP66. A.2.8  Mounting The THUM Adapter may be attached directly to the conduit of any 2-wire or 4-wire HART device or mounted remotely by using remote mount kit. Emerson.com/Rosemount...

  • Page 51: Performance Specifications

    -40 to 85 °C (-40 to 185 °F) Storage temperature -40 to 85 °C (-40 to 185 °F) During the surge event, device may exceed maximum EMC deviation limit or reset; however, device will self- recover and return to normal operation within specified start-up time. Emerson.com/Rosemount...
  • Page 52 Specifications and reference data Reference Manual January 2023 00809-0100-4075 Emerson.com/Rosemount...

  • Page 53: Appendix B Dimensional Drawings

    B  Dimensional Drawings Figure B-1: THUM Adapter ½ NPT 1.42 (36) 2.00 (50.6) (51) 5.19 (132) Dimensions are in inches (millimeters). Figure B-2: THUM Adapter with M20 Conduit Adapter (51) 2.71 (69) 6.48 (165) Dimensions are in inches (millimeters). Emerson.com/Rosemount...
  • Page 54 Dimensional Drawings Reference Manual January 2023 00809-0100-4075 Figure B-3: THUM Adapter with Remote Mount Kit 4.42 3.45 (112) (107) (88) Dimensions are in inches (millimeters). Emerson.com/Rosemount...

  • Page 55: Appendix C Product Certifications

    RF spectrum. Nearly every country requires this type of product certification. Emerson is working with governmental agencies around the world to supply fully compliant products and remove the risk of violating country directives or laws governing wireless device usage.

  • Page 56: Usa

    Intrinsically Safe Class I, Division 1, Groups A, B, C, D T3C; Suitable for Markings use in Class I, Division 2, Groups A, B, C, D T3C; T3C(–50 °C≤ T ≤ +70 °C) when installed per Rosemount drawing 00775-0012; Type 4X/IP66 C.8  Europe C.8.1  I1 ATEX Intrinsic Safety Baseefa09ATEX0125X Certificate Emerson.com/Rosemount...

  • Page 57: International

    IECEx BAS 09.0058 Certificate Standards IEC 60079-0:2011, IEC 60079-15:2010; Ex nA IIC T4 Gc, T4(–50 °C≤ T ≤ +70 °C) IP66 Markings C.10  Brazil C.10.1  I2 INMETRO Intrinsic Safety UL-BR 15.0089X Certificate ABNT NBR IEC 60079-0:2013, ABNT NBR IEC 60079-11:2013 Standards Emerson.com/Rosemount...

  • Page 58: China

    1. See certificate for special conditions. C.13  EAC - Belarus, Kazakhstan, Russia C.13.1  IM Technical Regulation Customs Union (EAC) Intrinsic Safety TC RU C-US.AA87.B.00993 Certificate 0Ex ia IIC T4 Ga X; T4 (–50 °C≤ T ≤ +70 °C) IP66 Markings Emerson.com/Rosemount...

  • Page 59: Republic Of Korea

    Markings Ex ia IIC T4 Special Conditions for Safe Use (X): 1. See certificate for special conditions. C.15  India C.15.1  IW India (CCOE) Intrinsic Safety A/P/HQ/MH/104/4259(P366317) Certificates Ex ia IIC T4 Markings C.16  Combinations Combination of IM and NM Emerson.com/Rosemount...
  • Page 60 Product Certifications Reference Manual January 2023 00809-0100-4075 Emerson.com/Rosemount...

  • Page 61: Appendix D Ordering Information

    The starred offerings (★) represent the most common options and should be selected for the fastest delivery times. The nonstarred offerings are subject to additional delivery lead time. D.5  Required model components D.6  Model Requires THUM Connection Box. Code Description 775TG Wireless 775 THUM Adapter Assembly Tank Gauging Emerson.com/Rosemount...

  • Page 62: Output

    Ordering Information Reference Manual January 2023 00809-0100-4075 D.7  Output Code Description Wireless D.8  Housing Code Description Aluminum ★ D.9  Mounting connection Code Description ½- 14NPT ★ M20 conduit adapter ★ D.10  PlantWeb functionality Code Description HART data ® ★ Emerson.com/Rosemount...

  • Page 63: Certification

    User-configurable update rate, 2.4 GHz DSSS, IEC 62591 (WirelessHART ® ★ D.13  Omni-directional antenna and SmartPower ™ solutions Code Description Long range, integral antenna, power scavenging ★ D.14  Accessories Item description Part Number Remote mount kit - aluminum 00775-9000-0001 Remote mount kit - stainless steel 00775-9000-0011 Emerson.com/Rosemount...
  • Page 64 Ordering Information Reference Manual January 2023 00809-0100-4075 Item description Part Number M20 conduit adapter 00775-9001-0001 Emerson.com/Rosemount...

  • Page 65: Appendix E Dimensional Drawings

    Reference Manual Dimensional drawings 00809-0100-4075 January 2023 E  Dimensional drawings Figure E-1: THUM Adapter FM I.S. & Class 1, Div. 2 Installation Drawing (1 of 2) Emerson.com/Rosemount...
  • Page 66 Dimensional drawings Reference Manual January 2023 00809-0100-4075 Figure E-2: THUM Adapter FM I.S. & Class 1, Div. 2 Installation Drawing (2 of 2) Emerson.com/Rosemount...
  • Page 67 Reference Manual Dimensional drawings 00809-0100-4075 January 2023 Figure E-3: THUM Adapter CSA I.S. Installation drawing Emerson.com/Rosemount...
  • Page 68 Dimensional drawings Reference Manual January 2023 00809-0100-4075 Figure E-4: THUM Adapter CSA Installation Drawing Emerson.com/Rosemount...
  • Page 69 Reference Manual 00809-0100-4075 January 2023 Emerson.com/Rosemount...
  • Page 70 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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