how to test a load cell the load cell is connected to the famous wheat stone bridge circuit the strain gauge is the sensing element in the load cell that converts the pressure or weight to resistance in this video we will learn how to test four wire load cell the four wires are one two three and four one and two are for the strain gauge three and four are for the opposite resistance to the strain gauge a multimeter will be used to measure the resistance of the load cell from the load cell data sheet for example the resistance of the strain gauge will be 350 ohms when there is no load the same procedure will be done to the opposite resistance and ideally the resistance will be the same 350 ohms so that the output voltage between the wires one and three will be zero for balanced wheat stone bridge circuit from the data sheet while applying 2500 pounds which is equal to 1134 kilograms the output will be equal to 30 millivolts to watch similar useful videos kindly like the video and subscribe to this channel