DM6266 digital clamp meter circuit schematic

One-piece inductor

The clamp ammeter is referred to as a clamp meter. Its working part is mainly composed of an electromagnetic ammeter and a through-current current transformer. The core-type current transformer core is made into a movable opening and is clamped, so it is called a clamp-type ammeter. It is a portable instrument that can directly measure the AC current of the circuit without disconnecting the circuit. It is very convenient to use in electrical maintenance and has a wide range of applications. It is a meter that combines a current transformer and an ammeter. Its working principle is the same as that measured by a current transformer. The clamp meter is a combination of a current transformer and an ammeter. The core of the current transformer can be opened when the wrench is tightened; the wire through which the current is measured can pass through the opening of the core without cutting, and the core is closed when the wrench is released. The circuit lead to be tested that passes through the core becomes the primary coil of the current transformer, in which current is induced in the secondary coil by the current. Therefore, the current meter connected to the secondary coil has an indication-----measures the current of the line under test.