Multimeters are devices used to measure voltage, current, and resistance. They can be used for a variety of purposes, such as troubleshooting electrical systems or measuring the electrical performance of components.
Multimeters typically have several features, including the ability to measure AC and DC voltage, AC and DC, and resistance. Some multimeters also include capacitance and frequency measurement capabilities. Additionally, multimeters often come with various safety features, such as over-current protection and insulation testing.
An electrician uses several different tools to do his job. A common tool that he will use is a multimeter, which tests the amount of an electrical charge in a circuit or device. The two most important things to look for in a multimeter are accuracy and durability. This article will help you find the best multimeter for your needs by listing out some helpful tips on how to choose one.
There are three different types of multimeters: analog, digital, and programmable.
1. Analog Multimeters
It read with pointer movement rather than numbers, so they can be more difficult to read than digital meters; however, they’re usually cheaper than programmable meters.
2. Digital Multimeters
Digital multimeters are easier to read, but they’re more expensive than analog ones. They also require a battery to run, unlike analog meters which can be continuously used with an AC adapter or by using a car battery.
3. Programmable Multimeters
Programmable multimeters measure voltages and calculate their root mean square (RMS) values, frequencies, true power, apparent power, and energy of the electrical signals they’re given–the one you choose mustn’t limit your measurements in any way.
A programmable meter will give you more accurate readings for use in a home or office situation where appliances cause interference on household wiring; it won’t work as well in industrial settings where machinery is all the time (and would cause interference).
There are a few more differences between different types, but these three will give you at least two of the most important things to look for in a multimeter. Analog meters are usually cheaper and digital ones easier on batteries, but programmable meters can measure values other than voltage and current.
Multimeters typically have a 25-250 V DC range on their analog dials, which is useful when testing circuit breakers and outlets for power. They may also have an AC or alternating current range that goes from 2 mV to 2000 V.
The higher ranges require safety precautions such as using insulated probes with ground wires if you’re testing devices with them–you don’t want to get shocked! Multimeters typically come with several standard attachments such as a spring probe and pointed probes.
There are two more factors to consider, and they both have to do with use: what you’ll measure and how often you’ll use the meter.
If you’re just doing light work around your home–like checking for blown fuses or replacing switches–a cheaper analog meter will probably serve you well; if you’re wiring homes on a day-to-day basis, however, it’s worth spending the extra money to get a digital multimeter that can handle industrial settings where appliances generate large amounts of power.
Switches and outlets tend not to cause problems in most cases, though older ones can sometimes give false readings due to their age; overall, these aren’t huge differences and shouldn’t affect your choice too much.
It’s also worth considering how often you’ll be using your multimeter–if you’re doing it every day, the extra durability of a digital one is definitely worth the cost; if it’ll be sitting in a drawer for months at a time, an analog meter will do just fine.
All three types are relatively durable and breakage isn’t common even on cheap models, but if you want something lighter or more sturdy than the usual plastic exterior, look for rubberized cases or aluminium ones with stainless steel components. You can also buy covers to protect probes from damage if they tend to snag on things as they’re plugged in and out of sockets frequently.
More readings here on electricians multimeter.