1. In order to prevent the transducer from falling off due to thermal expansion and cold contraction in the cleaning cylinder, overheated cleaning fluid cannot be suddenly poured into the cleaning cylinder.

2. 正確選擇清洗劑對清洗效果至關重要。清洗劑根據待清洗物體表面的附件確定。一般有:除油劑、除銹劑、油漆劑、除碳劑、除蠟劑等有機化學清洗劑。不允許將強酸強堿溶液注入清洗槽內，清除銹蝕。

2. The correct selection of cleaning agent is very important to the cleaning effect. The cleaning agent shall be determined according to the accessories on the surface of the object to be cleaned. Generally: degreasing agent, rust remover, paint agent, carbon remover, wax remover and other organic chemical cleaning agents. It is not allowed to inject strong acid and alkali solution into the cleaning tank to remove rust.

3.超聲波清洗機在工作過程中，會使液體產生一定的溫度，使液體產生一定的溫度，一般在夏季穩定在55℃左右，冬季穩定在45℃左右。用溶劑清洗時，注意了解溶劑的著火溫度。使用易燃溶劑清洗時，注意清洗槽內的溫度變化。如果液體溫度過高，則關閉超聲波電源。清洗后，溶劑溫度下降，確保安全。如果用易燃溶劑清洗時“沒有加熱”，否則可能會著火。

3. During the operation of the ultrasonic cleaning machine, the liquid will produce a certain temperature, which is generally stable at about 55 ℃ in summer and 45 ℃ in winter. When cleaning with solvent, pay attention to the ignition temperature of the solvent. When cleaning with flammable solvent, pay attention to the temperature change in the cleaning tank. If the liquid temperature is too high, turn off the ultrasonic power supply. After cleaning, the solvent temperature drops to ensure safety. If it is "not heated" when cleaning with flammable solvent, it may catch fire.

4. 將要清潔的物品放入清潔籃或專用夾具中。如果被清洗的物體沒有接觸到水箱，則清洗效果會更好。

4. Put the articles to be cleaned into the cleaning basket or special fixture. If the object to be cleaned does not touch the water tank, the cleaning effect will be better.

5. 當加熱器安裝在內膽后側2 / 3以下位置時，加熱時不要用手觸摸加熱板，注意燙傷。當液位小于內膽高度的2 / 3時，不允許加熱。超聲波清洗器內膽內的溶液不宜長時間加熱至80℃以上，這樣會縮短超聲波清洗器的使用壽命。

5. When the heater is installed below 2 / 3 of the rear side of the inner tank, do not touch the heating plate with your hand during heating, and pay attention to scalding. When the liquid level is less than 2 / 3 of the tank height, heating is not allowed. The solution in the inner tank of the ultrasonic cleaner should not be heated to more than 80 ℃ for a long time, which will shorten the service life of the ultrasonic cleaner.