Emerson Rosemount 848T Quick Start Manual page 11

May 2019
Figure 3-3: Sensor Wiring Diagrams
1 2 3
2-wire RTD and
Ohms
(1) Emerson provides 4-wire sensors for all single-element RTDs. Use these RTDs in
3-wire configurations by clipping the fourth lead or leaving it disconnected and
insulated with electrical tape.
(2) The transmitter must be configured for a 3-wire RTD in order to recognize an
RTD with a compensation loop.
The wiring of 3-wire RTDs for this unit is different than some earlier
Rosemount
the label, especially if this unit is replacing an older unit.
Quick Start Guide
1 2
3-wire RTD and
Ohms
™
848T models. Pay careful attention to the wiring diagram on
3 1 2
Thermocouples/
(1)
Ohms and
millivolts
Quick Start Guide
3 1
2-Wire RTD with
compensation
(2)
loop
2 3
11