Which multimeter for electrician is suitable for home and has higher cost performance?
It's still the pointer MF-47. Although it's old, and it hasn't been improved all the time, many data are based on this old pointer watch, especially in the maintenance of home appliances. It is more convenient to use a pointer meter as an electrician, because general electricians don't require high accuracy, but they require quick measurement of on-off and the jumping readings of digital meters are slower. I am an electrician now, and I often use an MF47 multimeter. There are two digital meters. I found them fresh when I first bought them, but I found them impractical after a long time. I have locked them in the cupboard for many years.
The multimeter for home use does not require high accuracy. Just buy a digital multimeter casually, and it is very cheap for tens of yuan. It's better to use pointer multimeter for industrial use and maintenance. When using digital measurement, the digital reflection is too slow, so it is not applicable. Generally, it is enough to buy a meter with an accuracy of 2.5, and the price is very cheap. The price of a high-precision watch will be much higher. Whether it is worth buying depends on the need.
The frequency of household use is low, and the measurement accuracy is not high. Generally, a small pointer universal meter will do. If you have the ability to make a universal meter with a microamp meter, it is very simple. If you add five diodes, a resistor and a two-pole, double-throw toggle switch, you can make a dual-purpose meter with 22O voltage and on-off measurement (of course, you have to have a small battery).
Determine the gear and accuracy of the multimeter according to the voltage, current and resistance range you measure. The multimeter suitable for home is used to measure the voltage within AC60v-500v; Within DC DC1v-600v; Current within 0.5MA-10A; The resistance is within 1Ω-10kΩ. It is recommended to adopt MF47 pointer multimeter.
The domestic victory table is good, cheap and practical, but there will be errors in the use of resistance files, and the accuracy is no problem in daily application. I've been using it, and the buzzer is loud, so it's very convenient to check the short circuit and open circuit.
