What is the fastest way to learn the digital multimeter quickly?
Multimeters are not only widely used, but also of various types, such as pointer multimeters, clamp-on multimeters, and digital multimeters. They are all messed up. If you really want to talk about them in detail, you might write a book. But there are shortcuts to everything. It is not difficult to quickly master the skills of using a multimeter. First of all, you must know what functions it has, what it can measure, which functions are particularly commonly used, and which functions are used in eight lifetimes. If you don’t need it, first understand the most commonly used functions in the early stage, and it’s not too late to deepen other functions in the future. The most common and most commonly used in the industry is the digital multimeter. Let’s take the digital multimeter as an example. See what shortcuts you can learn quickly.
Function
Although it is a multimeter, it actually has only a few functions. Let me sort it out. The higher the function, the more commonly used it is, and the more important it is.
Measure continuity between two points;
Measure the resistance between two points;
Measure the voltage between two points;
Measuring diode;
Measure working circuit current
Measuring capacitance
Measuring the magnification of the triode
Measure temperature
Measuring signal frequency
Of the 9 functions listed above, items 1, 2, 3, and 4 must be mastered. Only when you know these 4 items can you tell others that you can use a multimeter. Some people think that current measurement should not be very important, no, no, no, you may not use this function twice a year, so don't rush to understand it. Ok, now let's solve two problems that many novices face.
I don't know which two holes to insert the test leads into.
This should be the first big problem that many beginners will face. The multimeter has so many holes that I don’t know where to insert it. If it is inserted wrongly and the meter is damaged, it will be miserable.
In fact, no matter what kind of multimeter it is, and no matter what function you measure, there is one hole that must be inserted. This hole is the COM hole. Almost all multimeters have this hole. COM here means the public end, and the black test lead needs to be inserted here. . Ok, so there is still the red mark, almost all multimeters have this hole, COM here means the public end, and the black test lead needs to be inserted here. Ok, so the remaining place where the red test lead should be inserted is also very simple. Except for measuring current, all the red test leads for measuring other functions are inserted into a hole marked with the symbol "0Q", without exception. Because the holes for measuring current are independent and only measure current, so if you see the words A, mA, uA, etc. on the hole, then this hole must be used to measure current. Please insert the red test lead into the hole to measure other functions. In holes other than current holes.
