1. circuit boards must not be energized without load.2. no cleaning fluid can be energized during cleaning.3. the two connection pieces of the shock head can be divided into positive and negative ones.4. Shake head welding power cord must be welded in two silver layer of one side, the other side is the vibration surface, can be pasted in the wash basin (this is the purchase of ceramic transducer components instructions); silver on the ceramic sheet can not withstand high temperature, soldering iron welding power cord temperature can not exceed the brim, the best use of constant temperature soldering iron, soldering iron temperature set Set it to 250 degrees.5. The larger side of the shaker head (with a screw hole) can be adhered to the bottom of the cleaning container for the shaking surface. If the screw is welded by argon arc welding and glue is added, tighten it to the bottom of the steel plate.6. there must be no gaps at the bottom.The positive and negative poles of the output are connected with the positive and negative poles of the seismon respectively, so they can not be mistaken.Type:Ultrasonic Cleaner PartsProduct name:Ultrasonic cleaner drive boardPower:60WType:Digital ControlFrequency:40KhzVoltage:220VThe use of circuit board and shock transducer (ceramic chip transducer) is explained.size:about 135x95x35mm Material:CCLcolour:GreenPackage Contents:1 x Ultrasonic cleaner drive boardOnly the above package content, other products are not included.Note: Light and different displays may cause the color of the item in the picture a little different from the real thing. The measurement allowed error is +/- 1-3cm.