Key points for selecting clamp ammeter
Clamp current meter, also known as clamp meter, is more commonly referred to as hook meter in Taiwan. Clamp on ammeter is a convenient testing instrument (also known as non-destructive measurement) that clamps wires and detects current without cutting off the circuit. Analog pointer multimeter and digital multimeter are used to cut off the circuit to detect current, humidity sensor probe, regulator, PT100 thermistor sensor, all copper solenoid valve, cast aluminum heater, heating coil, while clamp ammeter is only clamped on the outer skin of the energized wire to detect current Easy to operate, it can detect high currents without directly connecting the circuit.
Clamp on meters, multimeters, and insulation resistance meters all have analog and digital detection methods for multimeters and clamp on meters. The standard type has a detection range of 2A to 200A or 400A for both AC and DC, and there are also products that can detect high currents of 2000A; There are also leakage detection products that can detect small currents of several mA, as well as products that can detect the true effective value of non sinusoidal waves other than sine waves in transformer power supplies, switch conversion power supplies, etc.
What are the 4 key points for selecting the type of clamp ammeter?
1: Detection object
Choose the model based on different detection objects, AC current, DC current, or leakage current;
2: Maximum detectable conductor specification
Cooperating with the testing site, there are different specifications ranging from 21mm diameter to 53mm diameter;
3: Is it necessary to detect the true efficacy value
The clamp ammeter using the average method cannot correctly detect non sinusoidal circuits such as motors and transformer circuits To detect this type of circuit, a clamp ammeter with true RMS mode should be used;
4: Other functions
A clamp ammeter is not only capable of detecting current, but also has a detection function and recording output integrated into one model.
