Emerson Rosemount 3144P Reference Manual page 25

Reference Manual
00809-0100-4021, Rev EA
March 2007
Figure 2-8. Transmitter Terminal
Block
Figure 2-9. HART / 4–20 mA
Wiring Diagram
2-wire RTD
and Ohms
R
∆T/Hot Backup/Dual
Sensor with
* 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
G
B
∆T/Hot
Backup/Dual
***
2 RTDs Sensor with 2
**
Thermocouples
"-"
"+"
Test
4-wire RTD T/Cs and
and Ohms Millivolts
∆T/Hot ∆T/Hot
Backup/Dual Backup/Dual
Sensor with Sensor with RTDs/
RTDs/ Thermocouples
**
Thermocouples
Rosemount 3144P
Sensor Terminals (1 – 5)
Ground
RTD with
Compensation Loop*
∆T/Hot Backup/Dual
Sensor with 2 RTDs
with Compensation
** **
Loop
2-11