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FAQ

How much can the current clamp measure up to? How much accuracy can be achieved?
The measuring range of this caliper meter can be great, but the accuracy depends on the manufacturing process.I am in charge of the Japanese HIOKI, the largest range of 1000A, accuracy of 1.5%; this is already quite sophisticated in the industry.
The specific use of the clamp meter
Clamp a line, the measured value is the current of this line, if there is a line can not be clamped, you can clamp two at the same time.
Clamp ammeters how to measure resistance, current, voltage
A multimeter and ordinary multimeter is not the same as lies in: as the current measurement to the meter in series in the circuit, so under normal circumstances, using ordinary multimeter to measure the current required power cut, multimeter or current meter, current transformer primary side connected in series in the circuit. Then power is measured, and a multimeter can measure the current power. A multimeter than the ordinary multimeter more than one meter, the meter is made according to the principle of the current transformer, specially used for measuring alternating current. Its working principle is as follows: a part of current meter measurement million by the current transformer and current measuring part composed of 000 table. The iron core of the mutual inductor is provided with a movable part and is connected with the handle. When the utility model is used, the movable iron core is opened by pressing the handle. The wires of the current to be measured are put into the jaw and the handle is closed to close the iron core.
How to use the pliers?
When the utility model is used, the movable iron core is opened by pressing the handle, and the conducting wire of the current to be measured is put into the jaw, and the iron core is closed after being released. The current through the wire equivalent transformer primary, secondary inductive current, current meter is connected to the secondary coil, so that the secondary coil current, form scale is good has returned to the current scale, which can indicate the value of measured current. A table is convenient to use, but the accuracy is not high.
DC screen operation of the display voltage imbalance, what reason, divided into operation, reported
Switching will be reported because the correctness of Emerson special monitoring can detect the current value of the module, the output current and the battery current (charge) = 1 + load current, DC internal wiring error 2, battery load current sampling Holzer sampling allowed, this can use clamp type table card, you know, 3, switching is to look at the current monitoring value display has no problem, suggested that this function in not checking before it is best not to shield
The digital universal meter can measure the maximum AC current
The biggest I can see is below 20A
How to use the multimeter to check the grounding wire is normal?
It is easy to detect by the clamp type meter, without the ground wire being disengaged, but the actual test is impedance. If the earth wire has current, the error of detection will be greater.
Methods use a table clamp type table and the matters needing attention
Clamp current meter high, low two, for without dismantling the current in the circuit fault line under the condition of direct measurement. The following methods: (1) the use of high voltage clamp meter should be paid attention to when the voltage clamp current meter, prohibit the use of low voltage electric current clamp meter high voltage measurement circuit. With high voltage clamp meter measurement, by the two person operation, non duty measurement should fill in second working ticket, should wear gloves when measuring stand on the insulating mat, must not touch the other equipment, to prevent a short circuit or grounding.