How to Use Your Digital Clamp Meter

Digital clamp meters are fantastic tools, whether you are a seasoned professional or an amateur who is just beginning. We believe that everybody should have one in their own toolbox.

But when you bring it home and unpack it in the box…what can you do with it?

Do not worry, we have got you covered. We put together an easy-to-read, thorough guide about the best way best to use your digital clamp meter.

Though a digital clamp meter is essentially Only a DMM Together with a current detector, there are two Important differences:

An electronic multimeter largely measures voltage, but it’s a couple of present capacities. A clamp meter does exactly the opposite: it is fantastic for measuring present, but somewhat lacking in regards to voltage.
While DMMs are high heeled, measuring in components such as millivolts and milliamps, clamp meters will only step to the nearest tenth or hundredth. That is fine for electrical work, but do not expect smaller dimensions!
DMMs are more precise and offer you immediate readings, but they are much slower and much less secure.

It is wise to have DMMs and digital clamp meters available. For certain circumstances, however, clamp meters are all indispensable.

Digital clamp meters are flexible, secure, and fast — you have made a fantastic purchase!

Within the difficult jaws of the digital clamp meter is ferrite iron. This is exactly what steps the magnetic field of a present since it flows through a conductor.

A recent transformer senses the changes in the magnetic field and extends the value into an AC reading, which shows up on your screen. Clamp meters are fantastic for large AC currents, making them a perfect tool to get around.

If you are familiar with the way direct currents operate, you may wonder just how a clamp meter might assist you in a situation if you have to measure DC currents rather than AC.

DC currents flow in a predetermined polarity, AKA the magnetic field does not change.


Clamp meters which can measure DC current utilize the Hall Impact to supply you with a right dimension. Find out more about multimeters information and help you decide.

But, digital clamp meters are not confined to only AC/DC present dimensions. Your purchase could have comprised extra sensors to produce the tool much more flexible.

If that is true, you may plug test results in your clamp meter to test things such as voltage.

Here is the best part — unlike traditional test probes, you may use a clamp meter to find a present reading without breaking a circuit.

No shut-off circuits, no clipping cables — only clamp the meter around a cord and receive your reading. Safe and suitable.

How can I use it?

This is quite important. We have assembled a step-by-step manual for you.

Before you begin utilizing your clamp meter, understand what you’re searching for. By way of instance, resolutions vary by a meter. Suggestion — the resolution enables you to determine whether there are any changes in the sign that you are measuring. In case you’ve got a meter using a 0.2 amp resolution, then do not expect to have the ability to find fluctuations of .1 amps. Differences in precision also matter. Though clamp meters are super dependable, they are not as precise as DMMs. There is room for mistake. Your accuracy will normally be expressed as a percentage, kind of like the margin of error that you see from polls.

If you are unfamiliar with digital clamp meters, then the screen can look like it is in Greek. (There are a few Greek characters on the market, really.) When it is clarified, nevertheless, it’s easy to read. Here is a Few of the conditions you will see on your screen:

When it’s lit up, it is active.

  • Hold: This indicates whether if your screen is frozen to reveal the previous reading you chose. It is very important to focus on that can be lit up. Your information will be incorrect if you have inadvertently been using the minimal amount in calculations rather than the average!

    Along with what is above, every digital clamp meter has its own unusual symbols on the screen. They all are supposed to assist you double check what the meter is programmed to perform. Before you use it, understand the particulars of your own meter to be certain that you know how to read the screen.

3. Have a reading

The simple use of the clamp meter could be summed up in 1 sentence. Pick the present you would like to quantify, open the limbs, and set them around (not on) the cable. Wait. Done. Clamp meters are fast enough they’ll provide you a reading over only a couple of seconds. Obviously, there are a few nuances in these directions. Let’s break it down: First, use the rotary selector to be certain you’ve put your clamp meter into the proper function. You do not wish to be attempting to measure DC current with AC configurations. You will also use the rotary selector to be certain your range is accurate. This is a significant measure because measuring a present that is greater than the range you have chosen can seriously harm your meter. If you are not certain about the scope, place it greater than you feel you’ll need only to be safe. You can reduce it later as required. To receive the best reading, ensure the electric wire you are measuring is plugged into an appliance that is currently working.

But you have to ensure your electric conductor is not running at a voltage greater than 600V. If the voltage is too large, the meter will not have the ability to provide a reading. When you have checked all these variables, you can go right ahead and clamp the difficult arms round the cord that you would like to quantify. Important note: Though clamp meters are secure since not all these are able to measure the voltage that they won’t inform you if wires are safe to touch.

Imagine if you would like to measure something aside from present? If you are searching to acquire a reading on something such as resistance or voltage, your procedure will appear different.

Assessing voltage is a bit more complicated. Instead of merely using the hard arms, then you are likely to need to break out the test probes.

  1. Here is how the procedure changes to quantify voltage:
  2. Pick the voltage you are attempting to quantify: AC or DC.
  3. A plug from the evaluation probes — that the black stunt extends into the COM jack, while the reddish attaches to the V/O jack.
  4. Choose the range, just like if you’re measuring present.

Twist the tips of the probes into the conductor to get a reading.

If you would like to recall your reading but remove from the supply, you can press the ‘grip’ button to suspend the reading. Then you are able to walk off without worrying about denying the amounts.


Measuring resistance is mainly the same as measuring voltage: you ensure immunity is chosen, plug into your evaluation probes and pick the range.

Rather than touching the tips of the probes into the circuit, then you join the probe tips throughout the component of the circuit that you would like to quantify.

The largest difference is the most significant — immunity dimensions can only be created out of the circuit’s energy off.

Unlike measuring voltage or current, measuring resistance together with the power may damage either the circuit along with your own meter.

Let us be real — clamp yards cost a pretty penny. You need to be certain yours lasts just as long as you possibly can.

Ensure that your tool is saved correctly.

You ought to keep your clamp meter in a clean, dry area so it is not in danger of rust. Ensuring the meter itself is sterile is equally significant — grime and dirt will throw away the accuracy of readings.

If at all possible, do not place anything on top of your plate which would knock out the jaws of recovery. If they are not aligned properly, the magnetic circuit will not shut.

Most digital clamp meters have self-aligning attributes, but it is better safe than sorry.

However, do not begin utilizing your spool plate to pry things apart. This self-aligning attribute is only going to fix so much better.

Anything you purchased the meter to get, you may be certain your brand new tool is secure, dependable, and a massive time-saver.

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