Knowing this, there's no need to worry about malfunctions anymore
Addtime：2020-05-25 21:45:46 Visits：868 Share：
Small ultrasonic cleaner
If the display screen doesn't work when the machine is turned on, it might be that the machine is not powered on. So when encountering such a situation, it is necessary to check the insurance issue. It is possible that when the machine is connected to the power supply, a short circuit occurs and the fuse is burned out. Such a situation may be caused by the aging of the machine's components. In this case, use a multimeter to check whether the components of the ultrasonic cleaner are connected. If such a problem is found, replace the components in time with new ones.
2. In the usage type ultrasonic cleaner , it may be in a long standby time, the startup time is very long, especially in summer when the temperature is too high, and the heat generated by the machine during operation causes the machine temperature to rise gradually. The colloid melting transducer section may short circuit and break. Therefore, a megohmmeter is used to check the insulation strength of the transducer. Generally, if the insulation strength is below 200MΩ, it cannot be used and a new transducer must be replaced. The internal ceramics of the transducer may also break due to long-term use, causing it to fail to function properly.
3. When used for a long time or with insufficient cleaning solution, the power transistors on the motherboard are prone to short circuits. If the motherboard is disconnected, measuring each pin with a multimeter shows that there is no connection. So pay attention to the connection type on the motherboard. Use a multimeter to measure the resistance value of the pins on both sides of the power transistor. Under normal circumstances, it should be around 22Ω. You can use this as a reference for maintenance.
4. Sometimes, when starting up, the voltage stabilizing diode may be easily damaged due to voltage changes, but such situations may be very rare. So, when encountering such a situation, it is necessary to conduct in the forward direction and cut off in the reverse direction according to the characteristics of the diode. Measured with the diode setting of a multimeter, the forward resistance is approximately 70Ω and the reverse resistance is ∞. If the numerical deviation is too large or the forward resistance value is also ∞, replace the new voltage stabilizing diode.
When the ultrasonic cleaner malfunctions, don't panic. Solve the problem based on the above analysis and detection. For more questions, you can call professional ultrasonic cleaning machine manufacturers, such as Kemeng Factory. It has completely independent intellectual property rights and implements "turnkey projects".
