Rosemount 848T Eight-Input Temperature Transmitter
with FOUNDATION™ fieldbus

Innovative Way to Measure Temperature

Accepts eight independently configurable RTD, thermocouple, ohm, and millivolt inputs
Powers PlantWeb® by providing multi-sensor measurement capabilities and diagnostics in one transmitter
Mounts Anywhere - Field Hardened, Intrinsically Safe, Low Power
Reduces effects of electromagnetic interference
Easily integrates existing analog instrumentation into FOUNDATION fieldbus environment

Lowest Cost Solution for Temperature
Monitoring Applications

Communicates up to 128 temperature measurements on two wires
- Sixteen 848Ts per FOUNDATION fieldbus segment
- Eight sensors per 848T
Reduce capital expenditures by up to 70% when compared to traditional temperature sensor wired direct and multiplexer architectures

- Reduces sensor and communication wiring
- Reduces labor and maintenance hours
- Reduces commissioning and documentation
costs

Click here to calculate savings
for your plant

Industry Leading FOUNDATION fieldbus Technology

8 Analog Input (AI) function blocks to communicate individual
measurements with alarming

1 Multiple Analog Input (MAI) function block to efficiently communicate all eight measurements at once

4 Input Selector (ISEL) function blocks for selecting Average, Minimum, Maximum, Midpoint, or First Good Status Temperatures

Backup Link Active Scheduler (LAS) ensures measurement availability

No Fieldbus in your Host System?

Rosemount 3420 Fieldbus Interface Module brings 848T installed cost savings to non-fieldbus hosts
Communicates process variables and measurement status using standard Modbus™, OPC, and other protocols
Easy device configuration and maintenance using a PC with a standard web browser and ethernet connection

How are Users Implementing this Revolutionary Technology?

Glass Furnace Temperature Upgrade Saves $31,000 and Reduces Maintenance (PDF @138Kb)
Biotech Company Reduces SIP Cycle Time by 20%, Leading to Minimized Product Contamination (PDF @77Kb)
Chemical Manufacturer Avoids Shutdowns by Using Fieldbus Technology (PDF @88Kb)
Rosemount Thermocouples Meet Harsh Furnace Condition Requirements (PDF @865Kb)

Technical Information

Product Data Sheet, Rev CA (PDF @530Kb, 00813-0100-4697)
Manual Supplement: Important Model 848T Installation Considerations, Rev CA (PDF @130Kb, 00809-0200-4697)
Product Manual, Rev BA (PDF @2800Kb, 00809-0100-4697)
Product Manual (Individual Chapters)
FOUNDATION Fieldbus Blocks manual, Rev BA (PDF@1220kb)
Standard Drawing (PDF @112Kb)

Temperature Accessories -- Sensors and Thermowells

Interoperability Information

848T-0409 Device Description/Common File Format (ZIP @ 135 Kb) 4/04
848T-0509 Device Description/Common File Format (ZIP @ 121 Kb) 1/05
848T-0509 Device Description/Common File Format for Honeywell Experion (ZIP @ 112 Kb) 6/05

848T DeltaV Field Device Files- Rev 4 (ZIP @ 154 Kb) 4/04
848T DeltaV Field Device Files- Rev 5 (ZIP @ 154 Kb) 1/05

Emerson Process Management, Rosemount Division, 8200 Market Blvd. Chanhassen, MN USA 55317
North America: 1-800-999-9307 International: 952-906-8888 Fax: 952-949-7001

Contact Emerson Process Management,
Rosemount Division

Last Updated 11/19/08

Rosemount 848T Eight-Input Temperature Transmitter with FOUNDATION™ fieldbus