Magnetic stirrer, as a commonly used equipment in laboratories, provides assistance for liquid stirring needs in scientific research and production work. However, prolonged and frequent use or improper operation may lead to various malfunctions. Here are several common faults and corresponding solutions for you in detail:
1. Unable to stir
Motor malfunction or transformer damage: Check and replace the motor or transformer.
• Unstable voltage or high viscosity of reaction solution: Adjust the voltage or reduce the viscosity of the reaction solution.
Insufficient magnetic force: Replace with a stronger magnetic stirrer or adjust the position of the stirrer.
2. Not heated
Heating coil short circuit or fuse blown: Replace the heating coil or fuse.
• Equipment damage caused by dry burning: Avoid dry burning, clean and dry the equipment in a timely manner after the experiment.
3. Out of control speed
Electronic component damage: Replace the circuit board or potentiometer.
• Governor malfunction: Check the speed control knob or circuit board, and replace parts if necessary.
4. Temperature out of control
Damaged digital display or heating tube: Replace the digital display or heating tube.
Heating tube aging: Replace the heating tube to restore temperature control function.
5. Noise and vibration
Poor motor lubrication or corrosion: Add oil for maintenance or replace the motor.
Rotor imbalance: Replace the rotor or adjust the position of the agitator.
Improper container selection: Use a flat bottomed container to reduce friction and vibration.
6. Leakage or corrosion
Aging of sealing gasket or inadequate sealing of joints: Replace the sealing gasket.
Corrosion of the heat collector: Replace the heat collector to avoid further damage.
Heating tube aging: Replace the heating tube to solve the leakage problem.
7. Uneven mixing
Inappropriate size/shape of mixer: Replace with a suitable mixer to enhance the mixing effect.
Excessive liquid volume/viscosity: Reduce the liquid volume or switch to an overhead mixer.