Emerson Rosemount 248 Quick Start Manual
Rail mount temperature transmitter
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- Quick start manual (28 pages)
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Summary of Contents for Emerson Rosemount 248
- Page 1 Quick Start Guide 00825-0300-4825, Rev AA December 2021 ™ Rosemount 248 Rail Mount Temperature Transmitter ® with RK Option and HART 7 Protocol...
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Page 2: Table Of Contents
Quick Start Guide December 2021 Contents About this guide...........................3 Installation........................... 5 Configuration..........................8 Mount the transmitter........................10 Product certifications......................... 12 Emerson.com/Rosemount... -
Page 3: About This Guide
Mount Temperature Transmitter. It does not provide instructions for detailed configuration, diagnostics, maintenance, service, troubleshooting, or installations. Refer to the Rosemount 248R Temperature Transmitter Reference Manual for more instruction. The manual and this guide are also available electronically at Emerson.com/Rosemount. Safety messages WARNING Explosions Explosions could result in death or serious injury. - Page 4 Physical security is an important part of any security program and fundamental to protecting your system. Restrict physical access by unauthorized personnel to protect end users’ assets. This is true for all systems used within the facility. Emerson.com/Rosemount...
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Page 5: Installation
December 2021 Quick Start Guide Installation 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 6 1 to 63. If two transmitters are configured with the same number, both will be excluded. The transmitters must be programmed for multidrop mode (with a fixed output signal of 4 mA). Maximum current in the loop is therefore 252 mA. Emerson.com/Rosemount...
- Page 7 December 2021 Quick Start Guide A. Power supply B. Connection C. Connection D. Connection E. 250 Ω < R < 1100 Ω load F. Transmitter Quick Start Guide...
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Page 8: Configuration
Use extreme caution when making contact with the leads and terminals. Configuration methods The device can be configured in the following ways: • With AMS Device Manager ® • With a HART communicator with Emerson's DDL driver ™ • Via programming framework (e.g. DCS, PACTware Emerson.com/Rosemount... - Page 9 December 2021 Quick Start Guide HART communicator To get access to product-specific commands, the HART communicator must be loaded with Emerson's DDL driver. This can be ordered through either the FieldComm Group or Emerson. A. Rosemount transmitter B. Ex area C.
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Page 10: Mount The Transmitter
Rail mount transmitter with threaded sensor The least complicated assembly uses: • a threaded sensor with flying heads • a threaded sensor connection head • a union and nipple extension assembly • a threaded thermowell Emerson.com/Rosemount... - Page 11 December 2021 Quick Start Guide Refer to Rosemount Metric Sensor Product Data Sheet for complete sensor and mounting accessory information. 4.2.1 Assemble the device To complete the assembly: Procedure 1. Attach the transmitter to a suitable rail or panel. 2. Attach the thermowell to the pipe or process container wall. Install and tighten the thermowell before applying pressure.
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Page 12: Product Certifications
A copy of the EU Declaration of Conformity can be found at the end of this guide. The most recent revision of the EU Declaration of Conformity can be found at Emerson.com/Rosemount. Ordinary location certification As standard, the transmitter has been examined and tested to determine... - Page 13 December 2021 Quick Start Guide Table 5-1: IS Input Parameters vs Temperature Range Input parameters Temperature Input parameters Temperature (Terminals 11, 12) range (Terminals 11, 12) range : 30 VDC T4: -50 °C ≤ T ≤ : 30 VDC T4: -50 °C ≤ T ≤...
- Page 14 Table 5-4: IS Input Parameters vs Temperature Range Input parameters Temperature Input parameters Temperature (Terminals 11, 12) range (Terminals 11, 12) range : 30 VDC T4: -50 °C ≤ T ≤ : 30 VDC T4: -50 °C ≤ T ≤ +85 °C +85 °C Emerson.com/Rosemount...
- Page 15 December 2021 Quick Start Guide Table 5-4: IS Input Parameters vs Temperature Range (continued) Input parameters Temperature Input parameters Temperature (Terminals 11, 12) range (Terminals 11, 12) range : 120 mA T5: -50 °C≤ T ≤ : 100 mA T5: -50 °C ≤ T ≤...
- Page 16 : 7.2 Vdc : 120 mA : 7.3 mA : See table below : 13.2 mW : 0 uH : 667 mH : 1.0 nF : 13.5 uF Pi per Channel Temperature class Maximum ambient temperature 900 mW +50 °C Emerson.com/Rosemount...
- Page 17 December 2021 Quick Start Guide Pi per Channel Temperature class Maximum ambient temperature +65 °C +85 °C 750 mW +55 °C +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 shall be avoided.
- Page 18 3. Additional, for Ex nA or Ex ec, the area inside the enclosure shall be pollution degree 2 or better, as defined in EN 60664-1. 4. For EPL Dc, the surface temperature “T” of the enclosure, for a dust layer with a maximum thickness of 5mm, is the ambient temperature +20K. Emerson.com/Rosemount...
- Page 19 December 2021 Quick Start Guide International 5.7.1 I7 IECEx Intrinsic Safety Certificate IECEx DEK 21.0002X Standards IEC 60079-0: 2011, IEC 60079-11: 2011 Markings Ex ia IIC T6…T4 Ga Ex ib [ia Ga] IIC T6…T4 Gb Ex ia IIIC Da Ex ia I Ma when installed per Control Drawing 00248-8002 Input parameters (Power terminals) Output parameters...
- Page 20 = 1.0 nF Vmax = 37 Vdc U = 37 Vdc = 851 mW +85 °C per channel +70 °C +55 °C Vmax = 30 Vdc U = 30 Vdc = 700 mW +85 °C per channel +75 °C +60 °C Emerson.com/Rosemount...
- Page 21 December 2021 Quick Start Guide Table 5-8: Maximum Output of Transmitter Ex nA & Ex ec Ex ic Vmax = 7.2 Vdc = 7.2 Vdc = 7.3 mA = 13.2 mW = 667 mH = 13.5 µF Special Conditions for Safe Use (X): 1.
- Page 22 Quick Start Guide December 2021 Standards GB3836.1-2010, GB3836.4-2010, GB3836.8-2014, GB3836.20-2010 Markings Ex nA [ic Gc] IIC T6…T4 Gc Ex ic IIC T6…T4 Gc Special Condition for Safe Use (X): See certificate for special conditions. Emerson.com/Rosemount...
- Page 23 December 2021 Quick Start Guide Declaration of conformity Quick Start Guide...
- Page 24 Quick Start Guide December 2021 Emerson.com/Rosemount...
- Page 25 December 2021 Quick Start Guide Quick Start Guide...
- Page 26 Quick Start Guide December 2021 Emerson.com/Rosemount...
- Page 27 December 2021 Quick Start Guide Quick Start Guide...
- Page 28 For more information: www.emerson.com © 2021 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.