Continuity refers to the connection between two points in an electrical connection.
A multimeter is used to check if two points are either connected to the right or the wrong way.
When a multimeter is connected between two points, it shows whether there is an electric current flow or not.
A closed socket may not prove that there is current flow in it simply because it has been blocked.
However, when connected, it usually allows current flow which can be detected from the multimeter.
Multimeter Continuity Usefulness
- Testing if electrical connectivity has been made properly
Continuity is an instrumental concept that every electric current user should know.
Sometimes, there can be a power shortage in a house or a firm which is very dependable.
This is where continuity comes in. it becomes important in testing if electrical connections have been made well.
When you use the multimeter to test for connectivity, you can know whether there is a connection or not.
This becomes essential as it helps you to avoid dangers as a result of electricity.
For instance, if a connection would bring threat, then the multimeter helps to check it through for correction before any problem is created.
Additionally, it saves time. When making or correcting an electrical issue, continuity helps you to be sure about the work that you have done.
Out of this, you can be sure that you will not come out to redo the work that you have already done.
In essence, testing your work using the multimeter helps you to be sure of what you are actually doing.
- Testing the conditions of electric appliances
Electric appliances can at times fail due to different reasons.
The most common cause is when their fuses get burned.
Continuity, therefore, can help in telling what exactly is the problem with the appliances.
If the problem is with the fuse, the multimeter will show that there is no continuity and so corrections can be made.
- Testing for the conductivity of the different material
Testing continuity using a Multimeter also helps in checking if a material is a good or bad conductor of electricity.
There are various companies which base their production on making electrical gadgets.
They have to be sure that the materials they use will conduct electricity or not.
It would be wrong for them to supply poor conductors in the name of good electric conductors.
This is where they can use the multimeter to test on the credibility of their products before making any supply.
Steps in Testing for Multimeter Continuity
When using a multimeter to test for continuity, here are the steps to follow:
Step 1: turn the multimeter off
Before you settle down to connect your multimeter to check for continuity, you must ensure that you switch off the breaker which controls the circuit.
You can guarantee that there is no current flowing. If you are not sure if it is off or on, use a non-contact circuit tester.
Step 2: Tester check
The next step is to check the tester. You can do this by putting the leads together to allow the device to light up.
In some instances, it can beep or even register 0 ohms of resistance.
These signs show you that the multimeter is functional.
If none of the signs is shown, it may mean that the multimeter is faulty.
Step 3: touch the brass screw
Choose one of the hot terminals to touch on the device and hold on it as you move to the next step.
Step 4: touch the other lead to terminal
After touching one terminal as in step 3, you need not touch any other terminal part from the green terminal which is generally for earthing.
In case there is continuity, the multimeter can either beep, light up or show a 0 ohms resistance.
If there is no continuity, the screen of the multimeter will remain dark.
In case you were testing for something like a switch, the tester will be on and off as you switch the socket on and off.
What to Expect When Testing Continuity on a Multimeter
When testing for continuity, you should know what to expect or other how to tell whether there is continuity or not.
After you have held two of the probes, the multimeter is expected to produce some sound.
This is common in most multimeters although not all of them have such a setting.
When the sound is generated, it shows that there is a small amount of current which has flowed through the multimeter from one probe to another without being resisted.
Based on the multimeter you are using, there can be different reactions.
For instance, some of the multimeters will light on while other will show 0 ohms of resistance.
It is upon the user to know what to expect in each of the multimeters they get to use.
Are you a beginner in operating multimeter device?
Here is a suggestion for your start.
You do not need to start with a really complicated gadget.
Just use Etekcity Digital Multimeter MSR-R500 for your work and practice.
We recommend it to you because the following feature can be of advantage to you:
- Its units are encased in a rubber which acts as a shock absorber in case it falls. This makes it more durable than any other brand in the market.
- It has an outstanding resolution and measures current from 0 to 10 Amps. The high resolution is to make it easily readable.
- It has a button which can be used to regulate the screen light. This means that it can be used even in the dark but remains active. The user only needs to push on the blue button which is placed on its front to turn on the backlight.
- The multimeter is as well cheap in price as compared to others in the market, and so you can comfortably afford it as a beginner.
For more information about the multimeter, please read our product reviews on our website so that you can learn more about testing continuity using our multimeter.
We provide the best multimeters in the market today.