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Reference Manual
00809-0100-4021, Rev DA
November 2004
2-11
Rosemount 3144P
Figure 2-8. Transmitter Terminal
Block
Figure 2-9. HART / 4–20 mA
Wiring Diagram
“+”
Sensor Terminals (1 – 5)
Test
Ground
3144P Single-Sensor Connections Diagram
3144P Dual-Sensor Connections Diagram
* 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)
4-wire RTD
and Ohms
T/Cs and
Millivolts
RTD with
Compensation Loop*
2-wire RTD
and Ohms
3-wire RTD
and Ohms**
∆T/Hot Backup/Dual
Sensor with
2 RTDs
∆T/Hot
Backup/Dual
Sensor with 2
Thermocouples
∆T/Hot
Backup/Dual
Sensor with RTDs/
Thermocouples
∆T/Hot
Backup/Dual
Sensor with
RTDs/
Thermocouples
∆T/Hot Backup/Dual
Sensor with 2 RTDs
with Compensation
Loop
***
R
W
W & G
G
B
**
** **
**