How to choose between analog multimeter and digital multimeter
As a multi-purpose portable instrument, the multimeter can measure a lot of physical quantities, such as AC and DC current, AC and DC voltage, resistance, capacitance, inductance and audio level. Multimeters can generally be divided into two types: analog pointer multimeters and digital multimeters. Based on my experience of using a multimeter, when you need to measure and check circuits in a circuit, you can just use an analog multimeter. For example, when checking the three pins and tube type of a transistor of unknown model at work, I think an analog multimeter is the best choice. Easy to use; it is more suitable to use a digital multimeter when the measurement circuit needs to be specific to numerical values and when the measurement data needs to be read.
Choice of multimeter
I think the choice of a multimeter should be based on the nature and requirements of your work. If we are engaged in the general electronic and electrical industry or are enthusiasts, I think ordinary multimeters can be qualified for our work.
Choice of analog multimeter
The first point is that I think the first thing to look for when buying an analog multimeter is the quality. A multimeter with good quality will generally last three to five years without any problems. If it is of poor quality, the test leads may become disconnected after only three to five months of use. In severe cases, small faults such as inability to zero the ohm or poor contact may occur, making it very annoying to use. When purchasing an analog multimeter, in addition to letting the merchant measure some simple physical quantities, I also have to hold it in my hand and weigh it. A good-quality multimeter feels "heavy" in my hand, while a poor-quality analog multimeter feels light in my hand. The softness is also reflected in the workmanship and materials used.
The second point is to buy some brands of analog multimeters, because a good brand is a guarantee of quality. For example, MF-47 series analog multimeters, MF500 multimeters, etc. are available. The multimeter I use in my daily work is the MF470 analog multimeter, which I still use after many years.
Selection of digital multimeter
When choosing a digital multimeter, in addition to the quality factors of the digital multimeter, I think we should also consider the display accuracy of the multimeter. We can choose the accuracy of the multimeter and the number of displayed digits according to our work needs. Generally, the display accuracy of digital multimeters is three and a half and four. Two and a half digits, the more digits displayed, the higher the accuracy will be. In addition, you must select functions and measurement ranges according to your needs. If you select too many functions and you do not use these functions at work, it will cause waste.
There are still many choices for digital multimeters, such as those from Unilide, Fluke, Victory and other brands. The one I usually use is Unilide. Unless there are special requirements, it can generally meet my work needs.
