Key Points for Clamp Meter Selection
Key Points for Clamp Meter Selection
The clamp ammeter is called clamp meter for short. Its working part is mainly composed of an electromagnetic ammeter and a feed-through current transformer. The core of the core-through current transformer is made into a movable opening and is shaped like a clamp, so it is called a clamp 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 widely used.
Key points for clamp meter selection:
1: detection object
Choose the model according to different detection objects, AC current, DC current, or leakage current;
2: Detectable conductor specifications
According to the testing site, there are different specifications from 21mm diameter to 53mm diameter.
3: Is true value detection necessary?
The clamp ammeter using the average value mode cannot correctly detect the non-sinusoidal circuit of the motor and the circuit of the transformer. The clamp ammeter of the true effective value mode should be used to detect this circuit.
4: Other functions
Not only can detect the current, but also a model that integrates the detection function and record output.
