É lá a diferença em precisão entre a clamp metro e a multímetro?
O amperímetro deve desconectar a linha quando medir, e então conectar o amperímetro em série em o circuito, que é muito problemático. Em adição, o intervalo de o amperímetro é limitado, e ele não pode medir grande correntes. O geral intervalo é 5A.
In actual work, current transformers are geralmente used to expand the range of the ammeter. The clamp meter is actually a combination of a feed-through current transformer and an ammeter, so it can not only measure AC current sem power supply, but also easily measure large currents.
The current clamp meter is no longer the clamp meter of decades ago. It adopts the principle of Hall induction, which can not only measure AC circuit and DC current; , frequency and other parameters. As for the accuracy, it is the same as the digital multimeter, there is no difference.
If you have to say which one is easy to use, the clamp meter or the multimeter, there are still some differences in their experience during use.
1. O clamp meter can continuously measure the current, which the multimeter cannot do. If you need to measure AC and DC current frequently, it is recommended to buy a clamp meter; if you don't need to measure current frequently , buy a multímetro.
2. In order to continuously measure the current, the clamp meter must have a jaw, so its body is relatively slender. Because there is no bracket on the back of the clamp meter, I personally feel that the clamp meter is more inclined to be measured in the hand; there is a bracket on the back of the multimeter, and it is more inclined to measure on the table. So if you often sit at the table for maintenance, it is more convenient to buy a multimeter, otherwise it is very uncomfortable to stretch your neck to look at the screen of the clamp meter.
3. In terms of price, the clamp meter not only has most of the functions of a multimeter, but also has more current transformers, so the price is relatively more expensive.
