Is there a difference in accuracy between a clamp-on meter and a multimeter?
The ammeter must be disconnected from the circuit when measuring, and then the ammeter must be connected in series in the circuit, which is very troublesome. Also the range of the ammeter is limited, can not measure large currents, the general range of 5A.
In practice, the general use of current transformers to expand the range of the ammeter. Clamp meter it is actually by a through-centre current transformer and ammeter combination, so it can not only in the case of uninterrupted power measurement of AC current, but also can easily measure the large current.
Now the clamp meter has long been not decades ago the clamp meter, it uses Hall induction principle, not only can measure the AC circuit, DC current; inserted into the pen into a digital multimeter, you can also measure the voltage, resistance, capacitance, frequency and other parameters. As for the accuracy, and digital multimeter is the same, there is no difference.
Their differences
If you have to say which one of the clamp meter and multimeter is good to use, there are still some differences in their experience in the process of using them.
1. Clamp meter can measure current constantly, which can't be done by multimeter. If you need to frequently measure AC and DC current, it is recommended to buy clamp meter; do not need to frequently measure the current on the purchase of the multimeter.
2. In order to measure the current without power, the clamp meter must have jaws, so its body shape is relatively long. Because there is no bracket on the back of the clamp meter, I feel that the clamp meter is more inclined to hold in the hands of measurement; multimeter has a bracket on the back of the more inclined to be placed on the table to measure. So if you are often sitting at the table next to the maintenance, or buy a multimeter is convenient, or stretch your neck to see the clamp meter screen is very uncomfortable.
3. In terms of price, the clamp meter it not only has a multimeter of large multi-function, but also more current transformer, so the price is relatively more expensive.
