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FAQ

How can the clamp meter measure alternating current?
The general type for measuring current clamp meter, you open the jaw vise current wires can be, if you want to measure the AC voltage, can use the pen, with a multimeter used almost
Use clamp meter?
The use of AC clamp meter measurement can only clamp into a wire, can not clamp into two or more wires.
A selection table clamp type table
Because the clamp table itself is of low precision, small current measurement, can adopt the following methods: first, the measured circuit of the wire around a few times, were measured and then put into the jaw in clamp meter. The current clamp meter indicating the value of the actual value is not measured, the actual current should be divided by the wire clamp meter readings for winding the coil number.
A fire was found with a ground electricity? Stealing electricity.
Someone will check it out and be sure to find it. With the zero line pencil check meter light, clamp type table test line current is a ground wire electricity meter, if the zero line continuously, as a center for electric meter, transformer grounding in the earth and common ground
30mA leakage breaker trip home is always with what method to find the leakage point, with clamp ammeters how?
Leakage indicator (a square small button, usually with the shell flush, leakage after the jump will be out), there is no indication? If not, the explanation is that the current in the circuit is too large. Should check from the direction of large load or short circuit; if there is leakage indication, check from the leakage.
How to use the clamp ammeters
In the use of clamp ammeters before should carefully read the manual to find out AC or AC / DC clamp meter.
Does this universal meter measure the output current of a direct current welder?
The clamp type meter measures current by measuring current with a current transformer. The DC current cannot produce an alternating magnetic field, so the clamp type meter cannot measure the direct current.
Electric drills, electric saws and so on. Under what circumstances should carbon brushes be used?
If the power tools are stationary or not turned, they should be changed basically, unless the motor is burned;