Introduction to Multimeter Functions

A multimeter is a multifunctional device that can measure various electrical properties. They are commonly used by electricians, hobbyists, and professionals in the electronics industry. If you are new to multimeters or want to learn more about their features, this article will give you the basics to get started.

1, multimeter can measure AC and DC current, AC and DC voltage, resistance, capacitance, can also measure inductance, audio level and thyristor and so on. There are many kinds of digital multimeters. Its composition is also composed of three parts: display screen, measurement line, and transfer switch.

2, the multimeter is generally divided into mechanical and digital. The mechanical multimeter consists of three main parts: the meter head, the measurement line, and the transfer switch.

3, the mechanical multimeter should be zeroed before use. The panel of the transfer switch has a letter display measuring function area. Resistance is indicated by ohms "Ω", which is also indicated by ohms on the meter head. We should estimate the resistance value of the measured resistance before choosing the range, and try to be close to the measured resistance value, if you do not know, you can first measure from the large resistance value, the normal hand in the middle of the full scale is accurate, the measured value must be multiplied with the number of file is correct.

4, the digital multimeter measurement function is basically the same as the mechanical type, and some are more than the mechanical type to measure temperature, frequency level, conductivity and high resistance.

5, the AC voltage is expressed by ~ under V, and the DC voltage is expressed by - under V. The current is represented by mA and A. They are displayed on a scale line. When measuring, we still estimate the value of voltage or current first, and measure from a large range when we do not know.

6, the two pens of the multimeter, the red is inserted in the "+" and the black is inserted in the "- "or" * "terminal

7, the conversion switch panel of the digital multimeter indicates the same letters as the mechanical multimeter.

8, the digital multimeter has a buzzer that can measure the diode and resistance on and off.

9. After the use of these two watches, the mechanical multimeter should be unplugged and the gear should be hit to the high voltage

10, the digital multimeter to play the gear to the off position.