1. Damage of ultrasonic cleaning machine transducer

Analysis: The temperature of ultrasonic cleaning machine is rising with the increase of time, and the temperature will melt the colloidal solution. Sensor failure or part of sensor porcelain cracked.

Use a vibrator to accurately measure the compressive strength of the insulation layer of the inductor. When the compressive strength of the insulation layer is lower than 200mΩ, the inductor must be removed and replaced.

The inner porcelain of the sensor will crack due to long-term application and cannot work normally.

2. Ultrasonic cleaning machine insurance damage:

If there is no switching power supply after starting the ultrasonic cleaning machine, there is no posture. Be sure to check the switching power base first. Has the policy been damaged

Analysis: The use of the ground line is likely to be with the neutral line or neutral mixed, and no grounding device (part of the line and the shell), is likely to be due to the ultrasonic cleaning machine short circuit fault, electronic products aging, short circuit fault, resulting in the destruction of commercial insurance.

Maintenance method: take off the commercial insurance watch without damage, disconnect with a digital multimeter, and replace the new machine and equipment.

3. Rectifier pipe damage in ultrasonic cleaning machine

Analysis: The long-term application of the rectifier pipe of ultrasonic cleaning machine, or the cleaning liquid is too long, the rectifier short circuit fault will occur.

Maintenance mode: The switching power supply tube is connected to the computer motherboard, and the digital multimeter rectifier pin is accurately measured on both sides of the resistor about 22Ω. When electrical outlets and computer motherboards break, they should be treated as unreasonable.