What are the classification of digital multimeter?

The digital multimeter is classified as follows according to its purpose and function.

1. Low grade digital multimeter.

This kind of meter belongs to the popular digital multimeter, its price is low, the function is simple, in addition to the basic function of measuring voltage, current and resistance, it usually also has the function of diode and buzzer block, and some also has the transistor test socket. The function of low-grade digital multimeter is similar to that of pointer multimeter.

2.Multifunctional digital multimeter.

The multifunction character teaching multimeter has the frequency block, the capacitance block, the temperature measuring block, some also has the high resistance or the electrical conductivity shield, its display bit number mainly has 7 / 2 、11 / 3 、 14 / 4 bit.

3.Multi-function digital multimeter with medium accuracy.

This kind of digital multimeter has high accuracy and full function. It basically belongs to the 9 / 2 bit digital multimeter.

4.Voice digital multimeter.

The digital multimeter contains a speech integrated circuit that can play the measured results in voice when displayed.

5.9 / 2 bit table digital multimeter.

This desktop digital multimeter uses fluorescent digital tube as display device for night-time observation. They are supplied by 220 V AC power supply, and the accuracy of the basic voltage value is 0.03%.

6.Medium-range intelligent digital multimeter.

This type of digital multimeter has an internal 4 / 8 bit microcomputer chip that displays 15 / 4 、 19 / 4 bits. Because of the RS-232 interface, it is suitable for matching the external computer to process the data. In general, the intelligent digital multimeter can measure the maximum (MAX), RMS (RMS), average (AVG), and has the functions of reading storage, relative value measurement, automatic shutdown, data storage / readout, data output and so on. Some tables also set the upper and lower limits of the measurement range.

7.High-grade intelligent digital multimeter.

The high-grade intelligent digital multimeter is generally equipped with 8-16 bits microprocessor, most of which are desktop structure, and have many functions such as data processing, automatic calibration, fault self-checking and so on. They are connected to external computer via RS-232 interface or 1EEE488 interface. The number of display digits is generally 11 / 2-17 / 2.

9.Multi-display digital multimeter.

Multi-display digital multimeter can display three or more groups of data at the same time, some tables also have analog bar chart display.

10.Special digital table.

There are many kinds of special digital meter, such as digital capacitance meter, digital inductance meter, digital RLC automatic measuring instrument, digital clamp meter, digital power meter, digital thermometer, digital pressure gauge, digital tachometer, digital flow meter, digital illuminance meter, etc. Generally can be used as a related professional measurement instrument.

If you want to know more, our website has product specifications for the digital meters, you can go to ALLICDATA ELECTRONICS LIMITED to get more information.