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Maintenance

We found 92 posts about Maintenance from DO Supply, a global automation parts reseller focused on hard-to-find and obsolete industrial automation products.

January 23, 2017

What is Electrical Noise and How Can You Prevent It?

In music and everyday life, a tone represents a harmonic sound that sounds good to our ears. The noise, however, is the disharmonic sound that’s everything but desirable. When it comes to the electricity, we can only identify with the noise, as it’s something that can cause you a lot of trouble. This noise is sometimes called ‘electromagnetic interference’ and can disrupt the normal workflow of your measuring instruments such as sensors, for example. Despite the fact that it doesn’t sound too critical or scary, you’ll still need to protect your electrical devices from the noise. Luckily for you, we’re going to explain what exactly is noise and how you can prevent it. Simply put, the electric noise is a disturbance in an electric that causes changes in voltage or current. As we’re talking about the unwanted disturbance, its pattern is often random, sporadic, and can’t be foreseen. When the electric noise occurs, we can always notice a sudden, yet a short increase of voltage or current...

January 14, 2017

Why did My Multimeter Fuse Blow?

A multimeter is something that we’ve all seen but many still don’t know how to use it. Checking your electronic system for faults was never this easy – simply grab your multimeter, set it to a required value and start measuring voltage, resistance, and current. Nowadays, you can find multimeters for less than 10 bucks and even this cheap piece of hardware can come in handy when you need to fault-chek your battery or any other device. But, measuring voltage, resistance, and current is something that’s vastly different, even for your multimeter. When you don’t understand how a multimeter works, you can end up with a blown fuse. This means that your multimeter uses different techniques for measuring these 3 different variables. Trying to measure a certain value in a way that’s used for measuring a different value will cause your multimeter fuse to blow. Well, as we said earlier; it blew as a result of misusing its functions. The multimeter comes with two inserts for positive leads. One...

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