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Constant temperature and humidity test machine cooling system maintenance tool current card meter
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Constant temperature and humidity test machine cooling system maintenance tool current card meter
Constant temperature and humidity test machine cooling system maintenance tool current card meter, also known as clamp meter, is a kind of instrument that does not cut off the circuit to measure current, its shape is like a clamp. The current value can be read out by clamping the measured wire in the clamp. The use method is shown in the figure. Since the pincers are greatly affected by the environmental magnetic field, they must be adjusted to zero frequently. In addition, when measuring the weak current, the conductor can be wound several more times on the clamp, and then the measured value is divided by the number of turns to be the actual current. The high-grade clamp meter can also display the waveform of current and voltage.
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1- Current direction; 2- The measured conductor; 3- Current direction indicator
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