The tong -shaped current meter is combined by the current transformer and the current meter.The iron heart of the current transformer can be opened when pinching the wrench; the wires passed by the measured current can pass through the gap of the iron heart opening without cutting off. When the wrench is released, the iron heart is closed.
The working principle of the tie -shaped current meter
The tong -shaped current meter is combined by the current transformer and the current meter.The iron heart of the current transformer can be opened when pinching the wrench; the wires passed by the measured current can pass through the gap of the iron heart opening without cutting off. When the wrench is released, the iron heart is closed.The tested circuit through the iron heart becomes a coil of the current transformer, where the current should be induced in the secondary coil through the current.Therefore, the current meter connected to the secondary coil has instructions ----- to measure the current of the measured circuit.The pliers can be changed by converting the switching file to change the different range.However, the operation is not allowed to be operated when dialing.The accuracy of the pliers is generally not high, usually level 2.5 ~ 5.In order to use it for convenience, there are different range of conversion switches in the table to measure different levels of current and measure voltage functions.
Pie -shaped current meter model Daquan
Can the tong -shaped current meter measure the DC current?
The tong -shaped current meter is generally used to test AC current. It is made based on the principle of AC snail flow, which is a bit like the transformer. The signal of the signal by electromagnetic magnetic induction., Theoretically, it is possible to make a DC pliers.
Pie -shaped current meter price
The price of the FLUKE of the fold -shaped current meter is generally between 350 yuan and 900 yuan, and the specific price needs to be determined according to the detailed model.
How to use tong -shaped current meters
1. First of all, the voltage level of the clamp -type current meter is correctly selected to check whether the appearance insulation is good, whether it is damaged, whether the pointer swings flexibly, and whether there is corrosion of the clamp.The rated current is estimated according to the motor power to select the range of the table.2. Before using a plie -shaped current meter, you should read the instructions carefully to find out whether it is communication or a dual -use pliers meter.3. Due to the low accuracy of the clamp -shaped current meter itself, the following method can be used when the small current measures: the wires of the measured circuit are used for a few circles, and then placed in the clamp mouth of the plie -shaped meter for measurement.At this time, the current value indicated by the tong -shaped table is not the actual value of the measurement. The actual current should be the number of readings of the plie -shaped meter except the number of wrapped circles.

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