When the object on the pan, the pressure applied to the sensor, the sensor deformation, so that the impedance changes, while the use of excitation voltage changes, the output of a change in the analog signal, the signal amplified by the amplifier output to the analog to digital conversion , Converted into a convenient digital signal output to the CPU operation control, the CPU according to the keyboard command and the program will output this result to the display, until the display of this result.

 After the electronic scale has been used for some time, the user needs to carry out the precision debugging, the specific steps are as follows:

1, before debugging, first of all to find enough open flat solid cement floor, the electronic scale sensor installed to the support level, and then adjust the electronic scale to decorate neatly.

 2, if it is a single electronic scale as long as the sensor can be installed, multi-section electronic scales to connect the electronic scale will be connected, and adjust the sections in a horizontal line.

 3, debugging, the sensor four corners to cushion, Technicians will be multimeter 200mv voltage measurement sensor signal voltage, normal in 0.7mv or so, four angular voltage basically consistent four corners have been flat, such as which two-angle voltage Small, then the angle of the force to be small to increase the needles, four corners after leveling, and then to the weight of school pounds, can guarantee the accuracy of the scale and return to zero is normal.

4, two or three large tonnage electronic scale, the middle of the two corners or four corners than the two sides of the force about twice to the signal voltage, the two sensor signal voltage ≤ 1/2 in the middle of the voltage.

5, angle debugging, try to 4T above the weight to the pressure angle, electronic scale sensor and junction box should be connected in the correct order to facilitate the follow-up debugging and maintenance, if necessary, can be marked in the junction box.