Emerson Rosemount 248 Reference Manual
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Emerson Rosemount 248 Reference Manual

Emerson Rosemount 248 Reference Manual

Wireless temperature transmitter
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Reference Manual
00809-0300-4248, Rev AA
September 2014
Rosemount 248 Wireless Temperature
Transmitter

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Summary of Contents for Emerson Rosemount 248

  • Page 1 Reference Manual 00809-0300-4248, Rev AA September 2014 Rosemount 248 Wireless Temperature Transmitter...
  • Page 3 North American Response Center Equipment service needs 1-800-654-7768 (24 hours—includes Canada) Outside of these areas, contact your local Emerson Process Management representative. 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.
  • Page 4 NOTICE The Rosemount 248 Wireless and all other wireless devices should be installed only after the Smart Wireless Gateway has been installed and is functioning properly. Wireless devices should also be powered up in order of proximity from the Smart Wireless Gateway,...
  • Page 5 Reference Manual 00809-0300-4248, Rev AA NOTICE Shipping considerations for wireless products (Lithium Batteries: Green Power Module, model number 701PGNKF): The unit was shipped to you without the Power Module installed. Please remove the Power Module prior to shipping the unit. Each Green Power Module contains one “D”...

  • Page 7: Table Of Contents

    Reference Manual Table of Contents 00809-0300-4248, Rev AA September 2014 Contents 1Section 1: Introduction Using this manual............1 Safety messages .
  • Page 8 4.2.2 Emerson Smart Wireless Gateway ........26 AMS Wireless Configurator ..........27 Troubleshooting.
  • Page 9 Reference Manual Table of Contents 00809-0300-4248, Rev AA September 2014 BAppendix B: Product Certifications Approved Manufacturing Locations ........47 European Directive Information .
  • Page 10 Reference Manual Table of Contents 00809-0300-4248, Rev AA September 2014 Table of Contents...

  • Page 11: 1Section 1: Introduction

    Introduction Using this manual The sections in this manual provide information on installing, operating, and maintaining the ® Rosemount 248 Wireless temperature transmitter with WirelessHART protocol. The sections are organized as follows: Section 2: Configuration provides instruction on commissioning and operating 248 ...

  • Page 12: Safety Messages

    Reference Manual Section 1: Introduction 00809-0300-4248, Rev AA September 2014 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 13: Considerations

    Considerations 1.3.1 General Electrical temperature sensors such as RTDs and thermocouples produce low-level signals proportional to their sensed temperature. With simple HART configuration, the Rosemount 248 Wireless converts the low-level sensor signal to a wireless-enabled signal. 1.3.2 Commissioning The transmitter can be commissioned before or after installation. It may be useful to commission it on the bench, before installation, to ensure proper operation and to become familiar with its functionality.

  • Page 14: Mechanical

    1.3.4 Electrical Power Module The Rosemount 248 Wireless Temperature transmitter is self-powered. The Power Module contains a primary lithium-thionyl chloride battery (Green Power Module, model number 701PGNKF). Each battery contains approximately 5 grams of lithium. Under normal conditions, the battery materials are self-contained and are not reactive as long as the battery and the Power Module are maintained.

  • Page 15: Service Support

    –40 to 85 °C –40 to 85 °C Service support To expedite the return process outside of the United States, contact the nearest Emerson Process Management representative. Within the United States, call the Emerson Process Management Instrument and Valves Response Center using the 1-800-654-RSMT (7768) toll-free number. This center, available 24 hours a day, will assist you with any needed information or materials.

  • Page 16: Product Recycling/Disposal

    Reference Manual Section 1: Introduction 00809-0300-4248, Rev AA September 2014 NOTICE Shipping considerations for wireless products (Lithium Batteries: Green Power Module, model number 701PGNKF): The unit was shipped to you without the Power Module installed. Please remove the Power Module prior to shipping the unit. Each power module contains a primary lithium-thionyl chloride battery.

  • Page 17: Overview

    Section 2: Configuration Reference Manual September 2014 00809-0300-4248, Rev AA Section 2 Configuration Overview ..............page 7 Safety messages .

  • Page 18: Warnings

    Reference Manual Section 2: Configuration 00809-0300-4248, Rev AA September 2014 2.2.1 Warnings Failure to follow these installation guidelines could result in death or serious injury. Make sure only qualified personnel perform the installation.  Explosions could result in death or serious injury. Before connecting a Field Communicator in an explosive atmosphere, make sure the ...

  • Page 19: Sensor Connections

    Reference Manual Section 2: Configuration 00809-0300-4248, Rev AA September 2014 Sensor connections The 248 Wireless is compatible with a number of RTD and thermocouple sensor types. Figure 2-1 shows the correct input connections to the sensor terminals on the transmitter. To ensure a proper sensor connection, anchor the sensor lead wires into the appropriate compression terminals and tighten the screws.
  • Page 20 4-wire RTD and  T/C and mV Note Emerson Process Management provides 4-wire sensors for all single element RTDs. Use these RTDs in 3-wire or 2-wire configurations by leaving the unneeded leads disconnected and insulated with electrical tape. Figure 2-2. Rosemount 65, 68Q, 78 Standard and High Temp, 58C and 68 RTD Lead Wire...
  • Page 21 Reference Manual Section 2: Configuration 00809-0300-4248, Rev AA September 2014 Figure 2-4. Rosemount 185 Thermocouple Lead Wire Configurations Type J Type N + Black (2) + Red (2) – White (3) – White (3) Type K + Green (2) – White (3) Note Wire color examples apply to Rosemount sensors, but will vary by manufacturer.

  • Page 22: Bench Top Configuration

    AMS Device Manager and AMS Wireless Configurator When configuring the Rosemount 248 Wireless using AMS Device Manager or AMS Wireless Configurator, double click the Rosemount 248 Wireless device icon (or right click and select Con/Setup), then choose the Configure Menu. AMS configuration changes are implemented when the Apply button is clicked.

  • Page 23: Default Settings

    Every temperature sensor has unique characteristics. In order to ensure the most accurate measurement, the Rosemount 248 Wireless should be configured to match the specific sensor that it will be connected to. Prior to installation, verify the configuration and connection settings of the temperature sensor through a Field Communicator or AMS.

  • Page 24: Device Network Configuration

    Reference Manual Section 2: Configuration 00809-0300-4248, Rev AA September 2014 Device network configuration 2.5.1 Join to network Fast Keys 2, 1, 1 In order to communicate with the Smart Wireless Gateway, and ultimately the Host System, the transmitter 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 25: Hart Menu Tree

    Reference Manual Section 2: Configuration 00809-0300-4248, Rev AA September 2014 2.5.3 HART menu tree Figure 2-5. Field Communicator Menu Tree: Overview Device Status 1. Refresh Alerts Identification 2. No Active Alerts 1. Device Image 3. F: Electrical Failure 2. Tag 4.
  • Page 26 Reference Manual Section 2: Configuration 00809-0300-4248, Rev AA September 2014 Figure 2-6. Field Communicator Menu Tree: Configure Wireless 1. Network ID 2. Join to Network 3. Broadcast Info Sensor 1. Sensor Value 2. Sensor Status Percent of Range 3. Type 1.
  • Page 27 Reference Manual Section 2: Configuration 00809-0300-4248, Rev AA September 2014 Figure 2-7. Field Communicators Menu Tree: Service Tools Device Status 1. Refresh Alerts 2. No Active Alerts 3. F: Electrical Failure 4. F: Terminal Block Failure 5. F: Sensor Failure 6.

  • Page 28: Fast Key Sequence

    Note The fast key sequences assume that Field Communicator Field Service Revision Dev v1, DD v1 is being used. Table 2-2. Rosemount 248 Wireless Fast Key Sequence Function Key sequence Menu items...
  • Page 29 Reference Manual Section 2: Configuration 00809-0300-4248, Rev AA September 2014 The Sensor Input Trim command allows the transmitter’s interpretation of the input signal to be digitally altered. The sensor reference command trims, in engineering(F, C,R, K) or raw(, mV) units, the combined sensor and transmitter system to a site standard using a known temperature source.

  • Page 30: Remove Power Module

    Reference Manual Section 2: Configuration 00809-0300-4248, Rev AA September 2014 Remove power module After the sensor and network have been configured, remove the Power Module and replace the module cover. The Power Module should be inserted only when the device is ready to be commissioned.

  • Page 31: Safety Messages

    Section 3: Installation Reference Manual September 2014 00809-0300-4248, Rev AA Section 3 Installation Safety messages ............page 21 Wireless consideration .

  • Page 32: Wireless Consideration

    3.2.1 Power up sequence The Rosemount 248 Wireless and all other devices should be installed only after the Smart Wireless Gateway (“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 33: Mounting

    September 2014 Mounting The Rosemount 248 Wireless can be installed in one of two configurations: Direct Mount, where the sensor is connected directly to the 248 Wireless housing’s conduit entry, or Remote Mount, where the sensor is mounted separate from the 248 Wireless housing, then connected to the 248 Wireless via conduit.

  • Page 34: Direct Mount

    Reference Manual Section 3: Installation 00809-0300-4248, Rev AA September 2014 3.5.1 Direct mount ® The direct mount installation should not be used when installing with a Swagelok fitting. Install the sensor according to standard installation practices. Be sure to use an approved thread sealant on all connections.

  • Page 35: Safety Messages

    Section 4: Commissioning Reference Manual September 2014 00809-0300-4248, Rev AA Section 4 Commissioning Safety messages ............page 25 Verify operations .

  • Page 36: Verify Operations

    Note The Rosemount 248 Wireless and all other wireless devices should be installed only after the Smart Wireless Gateway has been installed and is functioning properly. Wireless devices should also be powered up in order of proximity from the Smart Wireless Gateway, beginning with the closest device to the Gateway.

  • Page 37: Ams Wireless Configurator

    If the device joins the network and immediately has an alarm present, it is likely due to sensor configuration. Check the sensor wiring (see “Rosemount 248 Wireless Terminal Diagram” on page 28) and the sensor configuration (see “Rosemount 248 Wireless Fast Key Sequence” on page 26). Figure 4-1. Smart Wireless Gateway Network Settings AMS Wireless Configurator When the device has joined the network, it will appear in the Wireless Configurator window as illustrated below.

  • Page 38: Troubleshooting

    Join Device to Network 2,1,1 Join to Network Reference information Figure 4-2. Rosemount 248 Wireless Terminal Diagram Waiting for updated drawing. Note In order to communicate with a Field Communicator, the device must be powered by connecting the Power Module.

  • Page 39: Safety Messages

    Section 5: Operation and Maintenance Reference Manual September 2014 00809-0300-4248, Rev AA Section 5 Operation and Maintenance Safety messages ............page 29 Power module replacement .

  • Page 40: Power Module Replacement

    Reference Manual Section 5: Operation and Maintenance 00809-0300-4248, Rev AA September 2014 Power module replacement Expected Power Module life is 10 years at reference conditions. When Power Module replacement is required, remove the cover and remove the Power Module. Replace the Power Module (part number 701PGNKF) and replace the cover. Tighten to specification and verify operation.

  • Page 41: Lcd Screen Messages

    Reference Manual Section 5: Operation and Maintenance 00809-0300-4248, Rev AA September 2014 LCD screen messages 5.3.1 Startup screen sequence The following screens will display when the Power Module is first connected to the Rosemount 248 Wireless. X X X X X All Segments On: used to visually determine if there are X X X X x x x any bad segments on the LCD...
  • Page 42 Reference Manual Section 5: Operation and Maintenance 00809-0300-4248, Rev AA September 2014 T E R M 2 5. 0 0 SV Screen: terminal temperature value d e g c D E V TV Screen: device temperature value 2 5. 2 5 d e g c S u p l y QV Screen: voltage reading at the power supply...

  • Page 43: Overview

    Safety messages ............page 33 Rosemount 248 Wireless Device Status Information ......page 35 Rosemount 248 Wireless Troubleshooting .

  • Page 44: Warnings

    Reference Manual Section 6: Troubleshooting 00809-0300-4248, Rev AA September 2014 6.2.1 Warnings Failure to follow these installation guidelines could result in death or serious injury: Make sure only qualified personnel perform the installation.  Explosions could result in death or serious injury: Installation of this transmitter in an explosive environment must be in accordance ...

  • Page 45: Rosemount 248 Wireless Device Status Information

    Reference Manual Section 6: Troubleshooting 00809-0300-4248, Rev AA September 2014 Table 6-1. Rosemount 248 Wireless Device Status Information Device status Description Recommended action 1. Reset the device An electronics error that could Electronics impact the device measurement 2. Reconfirm all configuration items in the device Failure reading has occurred.

  • Page 46: Rosemount 248 Wireless Troubleshooting

    Reference Manual Section 6: Troubleshooting 00809-0300-4248, Rev AA September 2014 Table 6-1. Rosemount 248 Wireless Device Status Information Device status Description Recommended action 1. Verify that simulation is no longer required The device is in simulation mode Simulation and may not be reporting actual 2.

  • Page 47: Specifications

    Appendix A: Specifications and Reference data Reference Manual September 2014 00809-0300-4248, Rev AA Appendix A Specifications and Reference Data Specifications ............. . page 37 Dimensional drawings .

  • Page 48: Physical Specifications

    Reference Manual Appendix A: Specifications and Reference data 00809-0300-4248, Rev AA September 2014 A.1.2 Physical specifications Conformance to specification (±3(Sigma)) Technology leadership, advanced manufacturing techniques, and statistical process control ensure specification conformance to at least ±3. Electrical connections Power Module Field replaceable, keyed connection eliminates the risk of incorrect installation.

  • Page 49: Performance Specifications

    00809-0300-4248, Rev AA September 2014 Weight 248 without LCD - 1.31 lb. (0.60 kg) 248 with M5 LCD - 1.43 lb. (0.65 kg) Enclosure ratings (Rosemount 248 Wireless) NEMA 4X and IP66/67 A.1.3 Performance specifications EMC (ElectroMagnetic Compatibility) The 248 Wireless meets all requirements listed under IEC 61326.

  • Page 50: Accuracy

    Reference Manual Appendix A: Specifications and Reference data 00809-0300-4248, Rev AA September 2014 A.1.4 Accuracy Table A-1. 248x Wireless Accuracy Sensor options Sensor reference Input ranges Digital accuracy 2-, 3-, 4-wire RTDs °C °F °C °F Pt 100 ( = 0.00385) IEC 751 –200 to 850 –328 to 1562...

  • Page 51: Ambient Temperature Effect

    Reference Manual Appendix A: Specifications and Reference data 00809-0300-4248, Rev AA September 2014 A.1.5 Ambient temperature effect Table A-2. 248x Wireless Ambient Temperature Effects Sensor Sensor Input Temperature effects per 1.0 °C (1.8 °F) Digital options reference range change in Ambient Temperature accuracy 2-, 3-, 4-wire RTDs °...
  • Page 52 Reference Manual Appendix A: Specifications and Reference data 00809-0300-4248, Rev AA September 2014 Table A-2. 248x Wireless Ambient Temperature Effects Sensor Sensor Input Temperature effects per 1.0 °C (1.8 °F) Digital options reference range change in Ambient Temperature accuracy NIST Monograph Type N –200 to 1300 0.0204 °C + (0.00108% of absolute value T)

  • Page 53: Lead Wire Resistance Effect

    Reference Manual Appendix A: Specifications and Reference data 00809-0300-4248, Rev AA September 2014 A.1.6 Lead wire resistance effect Sensor lead wire resistance effect—RTD input Examples of approximate lead wire resistance effect calculations  Given: Pt 100 385 RTD Total cable length: 150 m 0.5 ...

  • Page 54: Dimensional Drawings

    Appendix A: Specifications and Reference data 00809-0300-4248, Rev AA September 2014 Dimensional drawings Rosemount 248 Wireless Remote Mount Remote mounted temperature sensor specified separately. Rosemount 248 Wireless Direct Mount Direct mounted temperature sensor specified separately (see ordering option code XA).

  • Page 55: Ordering Information

    September 2014 Ordering information Table A-3. Rosemount 248 Wireless Temperature Transmitter ★ The Standard offering represents the most common options. The starred options (★) should be selected for best delivery. __The Expanded offering is subject to additional delivery lead time.
  • Page 56 00809-0300-4248, Rev AA September 2014 Table A-3. Rosemount 248 Wireless Temperature Transmitter ★ The Standard offering represents the most common options. The starred options (★) should be selected for best delivery. __The Expanded offering is subject to additional delivery lead time.

  • Page 57: Approved Manufacturing Locations

    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 violation country directives or laws governing wireless devices usage.

  • Page 58: Ordinary Location Certification From Fm Approvals

    Reference Manual Appendix B: Product Certifications 00809-0300-4248, Rev AA September 2014 Cet appareil est conforme à la Partie 15 de la réglementation FCC. Son fonctionnement est soumis aux conditions suivantes: Cet appareil ne doit pas causer d'interférences nuisibles. Cet appareil doit accepter toute interférence reçue, incluant toute interférence pouvant causer un fonctionnement indésirable.

  • Page 59: Mapping Of Alert Messages In The Hart Command 48 Additional Status

    Appendix C: Mapping for non-DD based Integration with Host Systems Reference Manual September 2014 00809-0300-4248, Rev AA Appendix C Mapping for non-DD based Integration with Host Systems Mapping of alert messages in the HART command 48 additional status ... . page 49 Mapping of device variables index numbers .

  • Page 60: Mapping Of Device Variables Index Numbers

    Reference Manual Appendix C: Mapping for non-DD based Integration with Host Systems 00809-0300-4248, Rev AA September 2014 Table C-2. Maintenance Alerts (M:) Message Additional status Description The supply voltage is low and may soon Supply Voltage Low Byte 1 :: Bit 6 affect broadcast updates Electronics Temperature has The electronics temperature has exceeded...
  • Page 62 The Emerson logo is a trademark and service mark of Emerson Electric Co. Rosemount and the Rosemount logotype are registered trademarks of Rosemount Inc. PlantWeb is a registered trademark of one of the Emerson Process Management group of companies. HART is a registered trademark of the HART Communication F...

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