XCD-H3000 series is a special knapsack frequency converter for water pump, which is mainly used in equipment occasions that require automatic constant pressure function (such as fans, water pumps, etc.). The inverter is also designed with a dedicated universal base. With that base, it can be easily installed on different devices, which greatly reduce the installation problems of the client. Built-in PID and advanced energy-saving software algorithm can save a lot energy with power-saving effect of 20%~60% (depending on the specific usage). Soft start and soft stop can eliminate the water hammer effect, reduce the average torque and wear on the motor shaft, thereby reducing the number of maintenance and maintenance costs, and greatly improving the life of the equipment.