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Rosemount 848T Family
November 2014
www.rosemount.com
Electrical connections
Power module
The Emerson SmartPower Power Module is field replaceable,
featuring keyed connections that eliminate the risk of incorrect
installation. The Power Module is an Intrinsically Safe solution,
containing the Lithium-thionyl chloride with a polybutadine
terephthalate (PBT) enclosure. The 848T Wireless has a Power
Module life time rating of 6 years with a one-minute update rate,
at reference conditions.
(1)
Sensor terminals
Sensor terminals permanently fixed to terminal block
Field Communicator connections
Communication terminals
Clips permanently fixed to terminal block
Materials of construction
Enclosure
Housing - Low-copper aluminum
Paint - Polyurethane
Cover O-ring - Silicone
Terminal Block and Power Module
PBT
Antenna
PBT/Polycarbonate (PC) integrated omni-directional antenna
Mounting
Transmitter can be panel mounted, or be mounted onto a 2-in.
pipe stand (with option code B6). Sensors must be remotely
mounted, as transmitter conduit entries are not designed for
direct sensor mounting.
Weight
848T Wireless - 4.75 lb. (2.15 kg)
Enclosure ratings (848T Wireless)
Housing option codes HA1 or HA2 are Type 4x and IP66.
Sensor connections
Figure 10. 848T Wireless Sensor Connections Diagram
Optional voltage adapter
The Rosemount 848T Wireless voltage adapter allows voltage
measurement from 0-10 volts. For this capability, one or two
adapters are required. Each adapter accommodates 2 voltage
inputs, and can be installed interchangeably on inputs 1 & 2 or 3
& 4.
The divider is ordered using option codes S003 or S004, and can
also be purchased as a spare part.
(1) Reference conditions are 68 °F (20 °C), and routing data for three
additional network devices.
Note: Continuous exposure to ambient temperature limits (-40 °F or 185 °F)
(-40 °C or 85 °C) may reduce specified life to less than 20 percent.
2-wire RTD and 3-wire RTD and
4-wire RTD and Thermocouple and mV
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