Adjustable Electric Lower-speed Desktop Centrifugal Adjustable Electric Lower-speed Desktop Centrifugal - With capacity of 20ml x 6 tubes and maximum speed of 4000 rpm.- Equipped with speed and timer control to meet your requirement.- Top cover to ensure safety and reduce the noise and air resistance.- Used to separate an emulsion or solid particles from a suspension.- Portable small size - ideal for educational activities,in laboratory. Three ponit features: Beautiful Appearance Small size,light weight,large capacity,easy to operate. Control Panel Timing rotation button,the value is clear,the operation is simple. Centrifugal Head A round centrifugal head with tracnsparent glass top cover reduces noise. Operation Put the machine on a level and strong table and keep the working room clear,dry and ventilated .Indoor temperture5- 32℃ is ok Open the power supply and make sure the indicator lamp is light. Shut the power switch. Open the cover of the machine, clear the rotor and container. Put the test tube (with same weight) into the machine.Put down the cover of the machine.Adjust the timer as your requirement. Open the power switch. Adjust the governor as you requirement. Before you are going to stop the work, you should adjust the governor to “0”fist, and then shut the power supply .Clean the container and rotor, then put down the cover. Safety Warning After you open the power switch, please shut the power supply and make an examination if the indicators not light Do not operate the machine the machine without rotor . When you are going to operate the machine, you should make the rotor is not corroded/hurt. Do not open the cover of the machine and touch the rotor when the rotor when the rotor is in moving. Do not operate the machine if the rotor is not balance assembled.