S+ and S- are used to compensate the line resistance. S+ and E+ are connected, and S- and E- are connected.
Weighing sensor is a kind of conversion device that converts weight signal or pressure signal into electric quantity signal.
The weighing sensor uses metal resistance strain gauges to form a measuring bridge, which is made by using the principle that the metal resistance wire is elongated and thinned under tension and the resistance increases, that is, the effect of metal resistance changing with strain (strain is the change of size).