How to Use a Multimeter to Measure Leakage Current
The so-called pointer type multimeter refers to the display of corresponding values using the angle of the pointer swing. At present, there are few pointer type multimeters available on the market, and the most classic one is the MF47 pointer type multimeter from Nanjing, which is highly loved by people. The pointer type multimeter uses a pointer to indicate the reading, although it is not very convenient in terms of reading, the quality of the components can be judged based on the deflection angle of the pointer.
Digital multimeter
The so-called digital multimeter is equipped with an LCD screen that can directly display numerical values. Digital multimeter is the mainstream instrument nowadays, with convenient readings and more intelligence. Various voltage, current, and resistance values are directly displayed on its LCD screen, making it clear at a glance. And some digital multimeters can automatically select the range without distinguishing gears.
How to make a purchase
If it is only for household measurement purposes, such as checking whether there is electricity in the household socket and whether various electrical appliances are leaking. There is no need to purchase high-precision instruments, nor do you need to buy a multimeter with many functions. For example, some multimeters can measure the size of capacitance, so for household use, there is no need to choose one with this function. Just choose a multimeter between 20 and 30 yuan to meet the requirements.
If it is used for simple home appliance maintenance, such as repairing small household appliances such as electric fans, hot water kettles, washing machines, etc. Consider purchasing a multimeter with the function of measuring capacitance. Because when repairing an electric fan, it is generally necessary to measure the size of the starting capacitance of the fan, which can be used to determine the quality of the capacitance.
If used in precision applications, there is a high requirement for the accuracy of multimeter measurement values. So the domestically produced instruments of Shengli and Ulide no longer meet the usage requirements, which requires the use of Fluke instruments. Used friends should know that Fluke instruments are relatively expensive, but their zero degree and product quality are very high.
