How to Choose Between a Pointer Multimeter and a Digital Multimeter
As a versatile and portable instrument, a multimeter can measure a wide range of physical quantities, such as AC/DC current, AC/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 using a multimeter, a pointer multimeter is sufficient for measuring and inspecting circuits. For example, when checking the three pins and transistor type of a transistor that I don't know the model, I think a pointer multimeter is useful; When measuring circuits to specific numerical values and when reading measurement data, a digital multimeter is more suitable.
Selection of multimeter
I think when choosing a multimeter, it should be based on the nature and requirements of our job. If we are engaged in the general electronic and electrical industry or its enthusiasts, I believe that a general multimeter is capable of handling our job.
Selection of pointer multimeter
The first thing I think when choosing a pointer multimeter is the quality. A high-quality multimeter usually won't have any problems after three to five years of use. If it is of poor quality and used for three to five months, minor faults such as broken probes, inability to zero or poor contact may occur, which can be very frustrating to use. When choosing a pointer multimeter, in addition to asking the merchant to measure some simple physical quantities, I also need to hold it in my hand to weigh it. A high-quality multimeter feels "heavy" in my hand, while a low-quality pointer multimeter feels light and fluffy in my hand, which can also be reflected in the workmanship and materials used.
The second point is to buy some branded pointer multimeters, because a good brand is the guarantee of quality. For example, MF-47 series pointer multimeter, MF500 type multimeter, etc. are all available for selection. The multimeter I use in my daily work is the MF470 pointer multimeter, which I have been using for many years and still use today.
Selection of Digital Multimeter
For choosing a digital multimeter, in addition to considering the quality factor of the multimeter, I think the display accuracy of the multimeter should also be considered. We can choose the accuracy and number of digits displayed of the multimeter according to our own work needs. Generally, there are two types of display accuracy for a digital multimeter: three and a half digits and four and a half digits. The more digits displayed, the higher the accuracy. In addition, it is necessary to choose functions and measurement ranges according to the needs. If too many functions are selected and you cannot use them in your work, it will cause waste.
