What is the pin assignment of the sensor?

Where can I find the pin assignment of the sensor

The pin assignment of the sensor is documented in the first place in the data sheet of the sensor.

E.G.. for the sensor KD140 1000N:

kd140-1000N_en-1

pin-assignement-1

The wires Us and Ud of the sensor are connected to the terminals of the measuring amplifier with the same name.

Instructions for connecting the sensor to the measuring amplifier are given in this document:

Operating-Manual