Emerson Rosemount 248 Quick Start Manual
Wireless temperature transmitter
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Summary of Contents for Emerson Rosemount 248
- Page 1 Quick Start Guide 00825-0300-4248, Rev BD November 2024 Rosemount 248 Wireless ™ Temperature Transmitter...
- Page 2 Physical security is an important part of any security program and fundamental in protecting your system. Restrict physical access by unauthorized personnel to protect end users’ assets. This is true for all systems used within the facility. www.Emerson.com...
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Page 3: Table Of Contents
RFID tag (option code Y3) for required installation conditions. Contents About this guide........................... 5 Wireless considerations......................6 Physical installation........................8 Verify operations........................12 Reference information......................15 Power module replacement..................... 19 Product certifications........................ 21 Declaration of conformity......................26 China RoHS..........................28 www.Emerson.com... - Page 4 Quick Start Guide November 2024 www.Emerson.com...
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Page 5: About This Guide
248 Wireless Temperature Transmitter. It does not provide instructions for detailed configuration, diagnostics, maintenance, service, troubleshooting, or installations. Refer to the Rosemount 248 Temperature Transmitter Reference Manual for more instruction. The manual and this guide are also available electronically at Emerson.com/Rosemount. www.Emerson.com... -
Page 6: Wireless Considerations
Gateway, beginning with the closest. This will result in a simpler and faster network installation. Enable Active Advertising on the Gateway to ensure new devices join the network faster. Emerson Wireless 1410S Gateway and 781S Smart Antenna Related information Emerson Wireless 1410S Gateway and 781S Smart Antenna 2.2 ... - Page 7 November 2024 Quick Start Guide Figure 2-1: Field Communicator Connection www.Emerson.com...
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Page 8: Physical Installation
Figure 3-1: Exploded View of LCD Display Assembly A. Housing cover B. LCD meter C. Terminal screws D. LCD adapter plate E. Housing F. Green power module G. Power module cover 5. Attach the sensor wiring to the terminals as indicated on Figure 5-1. www.Emerson.com... -
Page 9: Remote Mount
12. Always ensure a proper seal by installing the electronics housing cover(s) so that polymer contacts polymer (i.e. no O- ring visible). Emerson recommends using Rosemount O-rings. 13. Provide 1.75 in. (45 mm) of clearance for units without an LCD display. Provide 3 in. (76 mm) of clearance for units with an LCD display for cover removal. - Page 10 polymer (i.e. no O-ring visible). Use Rosemount O-rings. 14. Provide 1.75 in. (45 mm) of clearance for units without an LCD display. Provide 3 in. (76 mm) of clearance for units with an LCD display for cover removal. www.Emerson.com...
- Page 11 Figure 3-4: Remote Mount Note Dimensions are in inches (millimeters). Wireless devices must be powered up in order of proximity from the Wireless Gateway, beginning with the closest device to the Gateway. This will result in a simpler and faster network installation. www.Emerson.com...
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Page 12: Verify Operations
Rosemount 248 Wireless Reference Manual. 4.2 Field Communicator For HART communication, a Rosemount 248 Wireless Device ® Driver (DD) is required. To obtain the latest DD, see Emerson.com/ Rosemount/Device-Install-Kits. The communication status may be verified in the wireless device using the following Fast Key sequence. -
Page 13: Ams Wireless Configurator
AMS wireless configurator When the device has joined the network, it will appear in the Wireless Configurator window as shown in Figure 4-2. For HART ® communication, a Rosemount 248 Wireless DD is required. To obtain the latest DD, see Emerson.com/Rosemount/Device-Install-Kits. www.Emerson.com... -
Page 14: Troubleshooting
Setup → Network → Settings page on the web server (see Figure 4-1). The Network ID and Join Key may be changed in the wireless device by using the following Fast Key sequence. Function Key sequence Menu items Join Device to Network 2,1,1 Join to Network www.Emerson.com... -
Page 15: Reference Information
A. Thermocouple and mV B. 4-Wire RTD and Ω C. 3-Wire RTD and Ω D. 2-Wire RTD and Ω Figure 5-2: Sensor Connections A. 2-wire RTD and Ω B. 3-wire RTD and Ω C. 4-wire RTD and Ω D. T/C and mV www.Emerson.com... - Page 16 Quick Start Guide November 2024 Note Emerson provides 4-wire sensors for all single element RTDs. Use these RTDs in 3- or 2-wire configurations by leaving the unneeded leads disconnected and insulated with electrical tape. Wireless HART Table 5-1: Fast Key Sequences ®...
- Page 17 Insulate or terminate the unused white lead in a manner that prevents shorting to the ground. To configure a single element, 4-wire RTD as a 2-wire system, connect matching colored wires first and then connect the paired wires to the terminal. www.Emerson.com...
- Page 18 IEC 60584 thermocouple ASTM E-230 thermocouple colors colors Type Positive (+) Negative (-) Positive (+) Negative (-) Black White White Green White Yellow Brown White Blue Note Dual thermocouple sensors are shipped with one pair of the wires shrink-wrapped together. www.Emerson.com...
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Page 19: Power Module Replacement
Use caution when handling the power module. It may be damaged if dropped from heights in excess of 20 ft (6.1m). Battery hazards remain when cells are discharged. Reference conditions are 70° F (21° C), transmit rate of once per minute, and routing data for three additional network devices. www.Emerson.com... -
Page 20: Environmental Considerations
As with any battery, local environmental rules and regulations must be consulted for proper management of spent batteries. If no specific requirements exist, then Emerson recommends recycling through a qualified recycler. For battery specific information, consult the material’s Safety Data Sheet. -
Page 21: Product Certifications
All wireless devices require certification to ensure that they adhere to regulations regarding the use of the 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 22 I1 ATEX Intrinsic Safety Baseefa14ATEX0359X Certificate EN IEC 60079-0: 2018; EN 60079-11: 2012 Standards Markings II 1 G Ex ia IIC T4/T5 Ga; T4 (–60 °C ≤ T ≤ +70 °C); T5 (–60 °C ≤ T ≤ +40 °C) www.Emerson.com...
- Page 23 Special Condition for Safe Use (X) The plastic enclosure may present a potential electrostatic ignition hazard and must not be rubbed or cleaned with a dry cloth. 7.9 China I3 China Intrinsic Safety GYJ20.1147X Certificate GB3836.1-2010, GB3836.4-2010, GB3836.20-2010 Standards www.Emerson.com...
- Page 24 °C), T4(–60 °C ≤ T ≤ +70 °C); IP66/IP68 Specific Condition for Safe Use (X) 1. See certificate for special conditions. 7.12 Combinations KQ Combination of I1, I5, and I6 Table 7-1: Entity Parameters Voltage U 6.6 V Current I 26.2 mA www.Emerson.com...
- Page 25 WARNING Additional warnings The plastic enclosure may present a potential electrostatic ignition hazard. RFID tag has limitations in ambient temperature and zone installation areas (Zones 1 & 21) as compared to the gauge. www.Emerson.com...
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Page 26: Declaration Of Conformity
Quick Start Guide November 2024 8 Declaration of conformity www.Emerson.com... - Page 27 November 2024 Quick Start Guide www.Emerson.com...
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Page 28: China Rohs
Quick Start Guide November 2024 9 China RoHS www.Emerson.com... - Page 29 November 2024 Quick Start Guide www.Emerson.com...
- Page 30 Quick Start Guide November 2024 www.Emerson.com...
- Page 31 November 2024 Quick Start Guide www.Emerson.com...
- Page 32 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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