How To Discharge Microwave Capacitor With Multimeter?
Solder the alligator clips to the opposite end of the wire. Slowly attach these clips to the two terminals of the microwave’s capacitor. The capacitor will be quickly discharged. To begin with the microwave repair, use a multimeter to verify the voltage remaining in the capacitor.
Microwaves are a part of electromagnetic spectrum which is used for heating food or water in microwave ovens. It is a form of radiation and is invisible to human eye. It is an energy source used by many electronic devices like cordless phones, baby monitors, and wireless home and office networks. It is non-ionizing radiation and has no effect on human health. However, it can damage some of the electronic components. If you are using a microwave oven for long periods of time then you may need to replace some of the parts of your microwave.
When it comes to microwaves there are two different types:
Discharge Microwave
A discharge microwave is one which is designed to be used in domestic microwave ovens. These microwaves are also called as magnetrons and are very common. It is important to know that the size of the capacitor determines the power of the microwave. A small capacitor (1 microfarad or µF) will produce low power microwave whereas a large capacitor (1,000 µF or 1,000 pF) will produce high power microwave. In a domestic microwave oven the power of the microwave will never exceed 1,000 watts so you won’t have any problems with a discharge microwave. But if you use it outside then it may cause damage to your property or even harm to your health. So, always make sure you are not using it outside the house.
Capacitor Discharge Microwave
A capacitor discharge microwave is also called as a CRDS (Capacitor Radio Discharge Source) or magnetron and it is used in industrial microwave ovens. It is important to know that industrial microwaves can reach up to 3,000 watts and they are dangerous for human health. So, if you work in an industrial area and you are using a microwave oven for long periods of time then you should replace it immediately. Always unplug it when you are done using it. If you don’t do this then you may get a shock and it may start working again after a few minutes. But the real problem will arise if someone else uses the microwave while it is still on. It will create a spark and it will ignite the gases which may cause an explosion. So, unplug it immediately.
Ferrite Rod Microwave
A ferrite rod microwave is one which contains a small piece of ferrite (a material which has the property to absorb radio waves). These microwaves are also called as yagis (Yagi Rods) and they are very common in car audio systems and other portable devices. You should avoid using them in your home as they can damage some of your electronic equipment.
Conclusion
If you use a microwave for long periods of time then you should consider buying a new microwave. It will cost you about $100 to $150 and it will be worth it. Always remember that the size of the capacitor determines the power of the microwave. So, if you are using a magnetron (discharge microwave) then make sure it is a large capacitor (1,000 µF or 1,000 pF).
FAQs
How do you discharge a microwave capacitor?
To discharge a microwave capacitor, the circuit must be closed. The capacitor retains its charge even when no electricity passes through it. The capacitor cannot be recharged after being disconnected. Remove the microwave’s lid to find the capacitor.
Find a metal instrument with strong rubber grips, such pliers or a screwdriver. The rubber grips protect your hands from the metal. This should avoid shocks while discharging the capacitor. Consider donning gloves for further protection.
Touch one prong of the capacitor first, then the other. Touch the third prong if it exists. The second (or third) prong may explode or flash when you contact it. If it doesn’t, fine.
A deadly pop or spark. If you are repairing your own microwave, work in a safe, open area. If the cable ignites, it shouldn’t ignite anything.
Can I use a multimeter to discharge a capacitor?
A multimeter does not immediately discharge a capacitor’s stored energy. Instead, it measures the capacitor’s voltage and power to see if it’s entirely released. This may be done with a light bulb or a DIY discharge instrument.
How do you discharge a microwave capacitor with a screwdriver?
You can discharge a microwave capacitor with a screwdriver by touching the screwdriver to the capacitor terminals, but this is not recommended because it could cause damage to the capacitor. It is best to use a resistor instead.
How many volts should a capacitor have to be discharged?
The voltage should be about 9. The capacitor discharges quickly to 0V across the multimeter. The capacitor should be changed if it cannot hold that voltage.