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Emerson Rosemount 248 Quick Start Manual
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Emerson Rosemount 248 Quick Start Manual

Emerson Rosemount 248 Quick Start Manual

Temperature transmitter
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Download this manual See also: Reference Manual, Quick Start Manual
Quick Start Guide
00825-0100-4825, Rev HA
January 2017
™
Rosemount
248 Temperature
Transmitter

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Summary of Contents for Emerson Rosemount 248

  • Page 1 Quick Start Guide 00825-0100-4825, Rev HA January 2017 ™ Rosemount 248 Temperature Transmitter...

  • Page 2: Table Of Contents

    January 2017 Quick Start Guide NOTICE This guide provides basic guidelines for the Rosemount 248. It does not provide instructions for detailed configuration, diagnostics, maintenance, service, troubleshooting, or installations. Refer to the Rosemount Reference Manual for more instruction. The manual and this guide are also available electronically on Emerson.com/Rosemount.

  • Page 3: Configure (Bench Calibration)

    Quick Start Guide January 2017 Configure (bench calibration) The Rosemount 248 can be configured 3 ways: a Field Communicator, the Rosemount 248 PC Programming Kit, or custom configured at the factory using the C1 option code. Refer to the Rosemount 248...
  • Page 4 January 2017 Quick Start Guide Function Fast Keys Function Fast Keys D/A Trim 1, 2, 2, 2 Scaled D/A Trim 1, 2, 2, 3 Damping Values 1, 1, 10 Sensor Connection 1, 3, 2, 1, 1 Date 1, 3, 4, 2 Sensor 1 Setup 1, 3, 2, 1, 2 Descriptor...

  • Page 5: Mount The Transmitter

    2. Set up configuration system hardware: a. Hook up the transmitter and load resistor (250-1100 ohms) wired in series with the power supply (the Rosemount 248 device will need an external power supply of 12-42.4 Vdc for configuration). b. Attach the HART modem in parallel with the load resistor and connect it to the PC.
  • Page 6 Avoid contact with sensor leads and sensor connections. 9. Install and tighten the connection head cover. Note Enclosure covers must be fully engaged to meet explosion-proof requirements. A. Rosemount 248 Transmitter D. Transmitter mounting screws B. Connection head E. Integral mount sensor with flying leads C.
  • Page 7 Quick Start Guide January 2017 6. Install conduit for field wiring to the conduit entry of the universal head. Seal conduit threads with silicone tape. 7. Pull the field wiring leads through the conduit into the universal head. Attach the sensor and power leads to the transmitter. Avoid contact with other terminals.
  • Page 8 January 2017 Quick Start Guide Refer to the Metric Sensor Product Data Sheet for complete sensor and mounting accessory information. To complete the assembly, follow the procedure described below. 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.

  • Page 9: Connect The Wiring

    Quick Start Guide January 2017 3. Attach necessary extension nipples and adaptors. Seal the nipple and adapter threads with silicone tape. 4. Screw the sensor into the thermowell. Install drain seals if required for severe environments or to satisfy code requirements. 5.
  • Page 10 January 2017 Quick Start Guide Figure 2. Power, Communication, and Sensor Terminals – A. Sensor terminals B. Power/communication terminals Ground the transmitter Ungrounded thermocouple, mV, and RTD/Ohm inputs Each process installation has different requirements for grounding. Use the grounding options recommended by the facility for the specific sensor type, or begin with grounding Option 1 (the most common).
  • Page 11 Quick Start Guide January 2017 A. Sensor wires C. 4-20 mA loop B. Transmitter D. Shield ground point Option 3 (for grounded or ungrounded housing) 1. Ground sensor wiring shield at the sensor, if possible. 2. Ensure the sensor wiring and signal wiring shields are electrically isolated from the transmitter housing.

  • Page 12: Perform A Loop Test

    January 2017 Quick Start Guide A. Sensor wires C. 4-20 mA loop B. Transmitter D. Shield ground point Perform a loop test The loop test command verifies transmitter output, loop integrity, and operation of any recorders or similar devices installed in the loop. Note This is not available with the Rosemount 248C Configuration Interface.

  • Page 13: Product Certifications

    A copy of the EU Declaration of Conformity can be found at the end of the Quick Start 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 that the design...
  • Page 14 January 2017 Quick Start Guide K6 CSA Intrinsically Safe, Explosionproof, and Class 1, Division 2 Certificate: 1091070 Standards: CAN/CSA C22.2 No. 0-10, CSA Std. C22.2 No. 25-1966, CSA Std. C22.2 No. 30-M1986, CAN/CSA C22.2 No. 94-M91, CSA Std. C22.2 No.142-M1987, CAN/CSA C22.2 No. 157-92, CSA C22.2 No.
  • Page 15 Quick Start Guide January 2017 N1 ATEX Type n – with enclosure Certificate: BAS00ATEX3145 Standards: EN 60079-0:2012, EN 60079-15:2010 II 3 G Ex nA IIC T5 Gc (–40 °C ≤ T ≤ +70 °C) Markings: NC ATEX Type n – without enclosure Certificate: Baseefa13ATEX0045X Standards: EN 60079-0:2012, EN 60079-15:2010 II 3 G Ex nA IIC T5 Gc (–40°C ≤...
  • Page 16 January 2017 Quick Start Guide Special Conditions for Safe Use (X): 1. See certificate for ambient temperature range. 2. The non-metallic label may store an electrostatic charge and become a source of ignition in Group III environments. 3. Guard the LCD display cover against impact energies greater than 4 joules. 4.
  • Page 17 Quick Start Guide January 2017 Special Conditions for Safe Use (X): 1. Ambient temperature range is: T6…T1(–50 °C ≤ T ≤ +40 °C) T5…T1 (–50 °C ≤ T ≤ +60 °C). 2. The earth connection facility in the enclosure should be connected reliably. 3.
  • Page 18 January 2017 Quick Start Guide Sensor terminals (1 to 4) Maximum internal Maximum output Maximum output Maximum output parameters voltage U current I (mA) power: P (mW) (nF) (mH) Sensor terminals (1 to 4) Maximum external parameters Group (nF) (mH) 23.8 23.8 237.9...
  • Page 19 Capacitance Ci 3.6 nF 2.1 nF Inductance Li 0 mH 0 μH 5.11 Additional Certifications (Rosemount 248 Head Mount only) SBS American Bureau of Shipping (ABS) Type Approval Certificate: 11-HS771994B-1-PDA Intended Use: Measurement of temperature for marine and offshore applications.
  • Page 20 January 2017 Quick Start Guide SBV Bureau Veritas (BV) Type Approval Certificate: 26325 Requirements: Bureau Veritas Rules for the Classification of Steel Ships Application: Class notations: AUT-UMS, AUT-CCS, AUT-PORT and AUT-IMS; Temperature transmitter cannot be installed on diesel engines. SDN Det Norske Veritas (DNV) Type Approval Certificate: A-14187 Intended Use: Det Norske Veritas’...
  • Page 21 Quick Start Guide January 2017 Figure 3. Rosemount 248 Declaration of Conformity...
  • Page 22 January 2017 Quick Start Guide...
  • Page 23 Quick Start Guide January 2017...
  • Page 24 January 2017 Quick Start Guide China RoHS Rosemount 248 List of Rosemount 248 Parts with China RoHS Concentration above MCVs Hazardous Substances Hexavalent Polybrominated Polybrominated Part Name Lead Mercury Cadmium Chromium biphenyls diphenyl ethers (Pb) (Hg) (Cd) (Cr +6) (PBB)
  • Page 25 Standard Terms and Conditions of Sale can be found on the Terms +65 6777 8211 and Conditions of Sale page. The Emerson logo is a trademark and service mark of Emerson +65 6777 0947 Electric Co. Enquiries@AP.Emerson.com Rosemount and Rosemount logotype are trademarks of Emerson.