To configure a single element, 4-wire RTD as a 2-wire system, connect matching colored wires first and then connect the paired wires to the terminal. Figure 2-2: RTD Lead Wire Configuration per IEC 60751 - Dual Element, 3-wire, Red Red White Black Black Yellow, May Quick Start Guide Quick Start Guide 5, 3 Wiring diagram for thermocouples,

The most precise way is to use a 'Kelvin' connection at the device, which uses 4 wires to accomplish the measurement task. Two leads, the Force+ and Force- connections on a 4-wire RTD, pass the current to the RTD. Two additional leads, RTD+ and RTD-, connect to Force+ and Force-, respectively, at the RTD element.

properties, wiring diagrams, characteristics and technical specifications. This section includes the block diagram of the AI 4×RTD/TC 2-/3-/4-wire HF 

In the diagram above a standard two-terminal RTD is used with another pair of wires to form an additional loop that cancels out the lead resistance.

Details of RTD Sensor Wiring from TC - a large manufacturer of RTD Sensors (Pt100 Sensors and Pt1000) and other temperature sensors.

If connection system is 2-wire, consider changing to wires of greater cross-section. Alternatively change to 3 or 4 wire connection system. The latter may require change of instrument. Signal from Thermometer breaks down. Electrical / Magnetic pick-up along connecting leads to instrument. (a) Ensure all compensating leads/wiring between

Therefore, 4-wire connection is the best and most accurate way to measure resistance or RTD sensor. A practical schematic of the 4-wire 

Download scientific diagram | Connection in 4-wire resistance and 4-wire RTD sensor circuit to measurement DAQ instrument from publication: Development and 

Rosemount 4 wire rtd wiring diagram (GOODIMG.CO) - Alternatively change to 3 or 4 wire connection system. Transmitter power terminals are rated to 42.4 v dc. L1 and l3 carry the measuring current while l2 acts only as a potential lead. •voltage drop across the line resistance are compensated. Red red white white red red white.

2 Wire RTD: Two-wire RTDs are less accurate of the three circuit configuration, as there's no way of eliminating or calculating the lead wire resistance 

devices. Each channel is individually configurable via software for 2- or 3-wire RTD or direct resistance input devices. Channels are compatible with 4-wire sensors, but the fourth sense wire is not used. Two programmable excitation current values (0.5mA and 1.0mA) are provided, to limit RTD self-heating.