Only 7 steps to find the cause of the crash of the electronic scale

Editor's note: The electronic scale is a product of the combination of modern sensor technology, electronic technology and computer technology. It has the characteristics of fast, accurate, continuous and automatic. In some operations, what should I do if the electronic scale crashes accidentally?

The electronic scale is mainly composed of a load cell, an amplifier circuit, an AD conversion circuit, a single-chip circuit, a communication interface circuit, and a voltage regulator circuit.

1. Check whether the 220V power supply is normal;

2. Whether the voltage stabilizer circuits in the electronic scale are normal;

3. Check whether the power supply voltage of the printer is normal and whether the current is too large when printing;

4. Focus on checking whether the voltage of the AD circuit is normal and stable, otherwise check whether the sensor is normal.

5. Check whether the digital circuit power supply of the circuit board is normal, and focus on checking the crystal oscillator components, which may be damp or damaged.

6. Electronic scales often crash, mainly check the capacitive components on the circuit board, whether the capacity is reduced or leakage.

7. After the electronic scale is turned on, the digital instability or hop count is displayed, which belongs to the AD circuit or the sensor is bad. It is important to check that the voltage of this part must be stable and normal.

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