Rosemount 848T Manuale Utente

Product Data SheetNovember 201400813-0100-4697, Rev NA Innovative temperature measurement for high density applications that provide installation and

10Rosemount 848T FamilyNovember 2014www.rosemount.comAccuracy Table 2. Input Options/AccuracySensor optionInput rangesAccuracy over range(s)Sensor re

11Rosemount 848T FamilyNovember 2014www.rosemount.comDifferential configuration notesDifferential capability exists between any two sensor types.For a

12Rosemount 848T FamilyNovember 2014www.rosemount.comAmbient temperature effectTransmitters may be installed in locations where the ambient temperatur

13Rosemount 848T FamilyNovember 2014www.rosemount.comAmbient temperature notesExamples When using a Pt 100 (α = 0.00385) sensor input at 30 °C ambient

14Rosemount 848T FamilyNovember 2014www.rosemount.comProduct CertificationsEuropean Directive InformationA copy of the EC Declaration of Conformity ca

15Rosemount 848T FamilyNovember 2014www.rosemount.comMarkings: Explosionproof for Class I, Division 1, Groups B, C, and D; T4(-40 °C ≤ Ta ≤+40 °C) w

16Rosemount 848T FamilyNovember 2014www.rosemount.comSpecial Conditions for Safe Use (X):1. Provision must be made, external to the apparatus, to ensu

17Rosemount 848T FamilyNovember 2014www.rosemount.comNC ATEX Type n (without enclosure)Certificate: IECEx BAS 09.0031UStandards: IEC 60079-0:2004, IEC

18Rosemount 848T FamilyNovember 2014www.rosemount.com2. This apparatus is not capable of withstanding the 500 V rms insulation test required by Clause

19Rosemount 848T FamilyNovember 2014www.rosemount.comCombinationsKG Combination of I1/IA, I5/IE, I6/IF, and I7/IGConduit Plugs and AdaptersATEX Flamep

2Rosemount 848T FamilyNovember 2014www.rosemount.comHigh Density Temperature MeasurementSmart Wireless delivers innovative wireless solutions for temp

20Rosemount 848T FamilyNovember 2014www.rosemount.comDimensional DrawingsJunction Boxes with no entries (option codes JP1, JA1, and JS1) – external di

21Rosemount 848T FamilyNovember 2014www.rosemount.comFigure 4. Stainless Steel Junction Box—Cable Gland (Option Code JS2)A. Ground ScrewDimensions are

22Rosemount 848T FamilyNovember 2014www.rosemount.comFigure 6. Stainless Steel Junction Box—Conduit Entry (Option Code JS3)A. Ground ScrewB. Five Plug

23Rosemount 848T FamilyNovember 2014www.rosemount.comMounting optionsFigure 7. Aluminum/Plastic Junction Box (Styles JA and JP)Dimensions are in inche

24Rosemount 848T FamilyNovember 2014www.rosemount.comRosemount 848T Wireless Temperature TransmitterThe Rosemount 848T is the premier choice for Wirel

25Rosemount 848T FamilyNovember 2014www.rosemount.comOptions (include with selected model number)Wireless burst rate, operating frequency and protocol

26Rosemount 848T FamilyNovember 2014www.rosemount.comWirelessHART... the Industry StandardSelf-organizing, adaptive mesh routing No wireless expertis

27Rosemount 848T FamilyNovember 2014www.rosemount.comSpecificationsFunctional specificationsInputFour independently configurable input channels that s

28Rosemount 848T FamilyNovember 2014www.rosemount.comElectrical connectionsPower moduleThe Emerson SmartPower Power Module is field replaceable, featu

29Rosemount 848T FamilyNovember 2014www.rosemount.comAccuracy Sensor optionSensor referenceInput ranges Accuracy over range(s)°C °F °C °F2-, 3-, and 4

3Rosemount 848T FamilyNovember 2014www.rosemount.comExperience global consistency and local support from worldwide Rosemount Temperature manufacturing

30Rosemount 848T FamilyNovember 2014www.rosemount.comAnalog sensors 4–20mATwo types of alarm levels are available with 4-20 mA sensors on the 848T. Th

31Rosemount 848T FamilyNovember 2014www.rosemount.comAmbient temperature effectTransmitters may be installed in locations where the ambient temperatur

32Rosemount 848T FamilyNovember 2014www.rosemount.comAmbient temperature notesExamples When using a Pt 100 (α = 0.00385) sensor input at 30 °C ambient

33Rosemount 848T FamilyNovember 2014www.rosemount.comProduct CertificationsApproved Manufacturing LocationsRosemount Inc. - Chanhassen, Minnesota, USA

34Rosemount 848T FamilyNovember 2014www.rosemount.comInternationalI7 IECEx Intrinsic SafetyCertificate: IECEx BAS 09.0004XStandards: IEC 60079-0:2011

35Rosemount 848T FamilyNovember 2014www.rosemount.comDimensional DrawingsFigure 11. Rosemount 848T WirelessDimensions are in inches (millimeters).7.0

Standard Terms and Conditions of Sale can be found at www.rosemount.com\terms_of_sale.The Emerson logo is a trade mark and service mark of Emerson Ele

4Rosemount 848T FamilyNovember 2014www.rosemount.comHigh density temperature measurementIdeal solution for taking multiple measurements in close proxi

5Rosemount 848T FamilyNovember 2014www.rosemount.comRosemount 848T FOUNDATION fieldbus Temperature TransmitterThe Rosemount 848T offers a low cost sol

6Rosemount 848T FamilyNovember 2014www.rosemount.comProduct certifications(3)Rosemount Junction Box required?NC ATEX Type n Component (Ex nA nL) No(4)

7Rosemount 848T FamilyNovember 2014www.rosemount.comWiringFigure 1. Rosemount 848T Sensor Wiring Diagram(1) Emerson Process Management provides 4-wire

8Rosemount 848T FamilyNovember 2014www.rosemount.comSpecificationsFunctional specificationsInputsEight independently configurable channels including c

9Rosemount 848T FamilyNovember 2014www.rosemount.comBackup Link Active Scheduler (LAS)The transmitter is classified as a device link master, which mea