PT100 RTD (Resistance Temperature Detector) 4-wire connections eliminate lead resistance error from precision temperature measurements. Four wires (two force, two sense) are connected via terminal blocks or M8 connectors.
| Pin | Name | Function | Type |
|---|---|---|---|
| F+ | Force+ | Current excitation positive | PWR |
| S+ | Sense+ | Voltage sense positive | ADC |
| S- | Sense- | Voltage sense negative | ADC |
| F- | Force- | Current excitation negative | PWR |
PT100 RTD (Resistance Temperature Detector) 4-wire connections eliminate lead resistance error from precision temperature measurements. Four wires (two force, two sense) are connected via terminal blocks or M8 connectors.