The concept and classification of digital meters

1. Concept: With the continuous development of digital technology and microcomputer technology, digital display meters and new display and recording instruments with single-chip microcomputer as the core are more and more widely used in the fields of industrial automation and industrial control. The digital display meter is the same as the pointer meter. It is matched with various sensors and transmitters to measure electricity, pressure, level, liquid level, flow, temperature, etc., and directly form a digital form. Concept: With digital technology and With the continuous development of microcomputer technology, digital display meters, new display and recording instruments centered on single-chip microcomputers are more and more widely used in the fields of industrial automation and industrial control. The digital display meter is the same as the pointer meter. It is matched with various sensors and transmitters to measure electricity, pressure, level, liquid level, flow, temperature, etc., and directly display the measured results in a digital form. ????????????????????????????????????????????????????????????????????????????????????????????????????????????????????????????????????????????????????????????????????????????????????????????????????????????????????????????????????????????????????????????????????????????????????????????????????????????????????????????????????????????????????????????????????????????????????????????????????????????????????????????????????????????????????????????????????????????????????????????????????????????????????????????????????????????????????????????????????????????????????????????????????????????????????????????????????????????????????????????????????????????????????????????????????????????????? 2. Classification: according to the signal form: ammeter, voltmeter, frequency meter... according to the number of measurements: single-point meter, multi-point meter according to function: simple display, display alarm table, display transmission table, display communication table , Display record table, multi-function table, etc.