Strain gauge Wheatstone bridge sensors use 4-wire connections for excitation and signal to eliminate lead resistance errors. Common connectors include 4-pin DIN, M8 4-pin, or terminal blocks on load cells and force sensors.
| Pin | Name | Function | Type |
|---|---|---|---|
| 1 | EX+ | Excitation positive | PWR |
| 2 | EX- | Excitation negative | PWR |
| 3 | SIG+ | Signal output positive | ADC |
| 4 | SIG- | Signal output negative | ADC |
Strain gauge Wheatstone bridge sensors use 4-wire connections for excitation and signal to eliminate lead resistance errors. Common connectors include 4-pin DIN, M8 4-pin, or terminal blocks on load cells and force sensors.