Omega CN16Pt User Manual page 12

Temperature & process controllers
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PLATINUM
Series User's Guide
TM
Pin
Process
Process
Number
Voltage
Current
1
Rtn
2
Vin +/-
3
4
5
*For Remote Setpoint with an RTD, Pin 1 on the Output Connector must be used for the RtN instead of Pin 1 on the
Input Connector. Remote Setpoint is not available if you are using an RTD sensor and you have an SPDT (Type 3)
Output installed.
** Requires external connection to pin 4
Table 1.2 – Interfacing Sensors to the Input Connector
1
2
3
4
RTD (100 Ω) 4-WIRE
RTD (100 Ω) 3-WIRE
RTD (100 Ω) 2-WIRE (requires pin 1
to be jumpered to pin 4)
Figure 1.4 – RTD Wiring Diagram
1
2
3
4
5
Jumper
Figure 1.5 – Process Current Wiring Hookup with Internal and External Excitation
Thermo-
2-Wire
couple
RTD
**
I+
T/C+
RTD1+
I-
T/C-
RTD1-
5
6
7
8
9
0–24 mA
0–24 mA
Internal
Internal
Excitation
Excitation
6
7
8
9
10
3-Wire
4-Wire
Ther-
RTD
RTD
mistor
RTD2-
RTD2+
RTD1+
RTD1+
TH+
RTD2-
TH-
RTD1-
RTD1-
10
1
2
3
4
5
External
Excitation
Omega Engineering | www.omega.com
Introduction
12
Remote
Setpoint
Rtn(*)
V/I In
6
7
8
9
10

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