How to use the fire wire identificatie functie of the multimeter
Elektriciens gebruikt om gebruik elektrisch pennen voor onderhoud en probleemoplossing, maar nu ze gebruiken multimeters. In fact, not only the electric pen can distinguish the live wire from the neutral wire, but the multimeter can also distinguish the live wire from the neutral wire, but many people don't know it.
Digital electric pen: Since the digital electric pen is available, it is rarely used for ordinary electric pens. For digital electric pens, it has more functions, such as checking broken wires without electricity, distinguishing neutral wires and live wires, distinguishing the positive and negative poles of DC batteries, and judging whether the wires are short-circuited. It's all right, so the ordinary electric pen is gradually eliminated. If you use a digital electric pen to distinguish the live wire and the neutral wire, you can directly use the electric pen to measure the live wire and the neutral wire, and observe the voltage of the digital electric pen. If the maximum voltage displayed is 220V, it proves that it is the live wire. If the maximum voltage displayed is 12V or 36V, it proves to be the neutral line
The method of distinguishing live wire and neutral wire by multimeter
Voor de multimeter, there will an AC voltage gear. For the AC voltage gear, the voltage of the AC can be measured. When meting the voltage, use the red and black test leads and place them on the live wire and the neutral wire respectively, and its voltage will be displayed. But when meting de de spanning, It moet be geplaatst in de geschikte versnelling. Voor voorbeeld, wanneer meten het huishouden spanning van 220V en 380V, de multimeter moet worden geplaatst in de versnelling van AC spanning 700V.
Voor de AC spanning bereik, niet alleen de spanning kan be gemeten, maar ook de live wire en de neutraal draad kan be onderscheiden. It's just that many people don't know that the multimeter distinguishes the live wire and the neutral wire. Put the multimeter on the AC voltage position, put the black test lead aside, use the red test lead to measure the live wire and the neutral wire respectively, and observe the numbers on the multimeter. The larger number is the live wire. The smaller number is the zero line. If you feel that the number is not obvious, you can adjust the gear to a smaller value, so that the number will be more obvious.
