Foundation - Emerson Rosemount 3144P Reference Manual

Reference Manual
00809-0100-4021, Rev EA
March 2007
OUNDATION
F Fieldbus
Figure 2-11. Transmitter
Terminal Block
Figure 2-12. F
OUNDATION
Fieldbus Field Wiring Diagram
2-wire RTD
and Ohms
Backup/Dual
Sensor with 2
* Transmitter must be configured for a 3-wire RTD in order to recognize an RTD with a compensation loop.
** Emerson Process Management provides 4-wire sensors for all single-element RTDs. You can use these RTDs in 3-wire configurations by leaving
the unneeded leads disconnected and insulated with electrical tape.
*** Typical wiring configuration of a Rosemount dual-element RTD is shown (R=Red, W=White, G=Green, B=Black)
3144P Single-Sensor Connections Diagram
3-wire RTD
and Ohms**
3144P Dual-Sensor Connections Diagram
W
W & G
R
G
B
∆T/Hot ∆T/Hot Backup/Dual
Sensor with 2
Thermocouples
***
RTDs
**
Power Terminals
4-wire RTD T/Cs and
and Ohms Millivolts
∆T/Hot
Backup/Dual Backup/Dual
Sensor with RTDs/ Sensor with RTDs/
**
Thermocouples Thermocouples
Rosemount 3144P
Sensor Terminals (1 – 5)
Ground
RTD with
Compensation Loop*
∆T/Hot ∆T/Hot Backup/Dual
Sensor with 2 RTDs
with Compensation
**
Loop
**
2-13