INTRODUCTION
The multimeter/oscilloscope can directly measure the DC current of no more than 800A
and the AC current of no more than 500A through the AC/DC current probe, and the
measurement frequency is up to 5KHz. When measuring current with this current probe,
there is no need to destroy the current loop or peel off the insulating layer.
The current probe is not only suitable for the detection or monitoring of possible leakage in
the circuit, but also the extended jaw can be measured in a small gap. It should be noted
that when measuring DC current, it is necessary to adjust the zero point by operating the
zero adjustment knob.
APPLICATION PROCEDURE
1. When connecting with a multimeter, insert the GND terminal of the BNC/banana-KJJ
adapter into the COM terminal of the multimeter, and insert the other terminal of the
adapter into the V-
Ω terminal. Please note that the input impedance of the multimeter
used should be at least 10K ohms.
When connecting with the oscilloscope, connect the BNC plug of the current probe to
the BNC terminal of the oscilloscope.
2. Set the power switch from the "OFF" to the range required to measure the current,
that is to say, push the switch slider to 10mV/A or 1mV/A range. When the current
probe is powered normally, the green power indicator will light up.
3. When the measured current is not greater than 20 amperes, please set the current
probe to the 10mV/A range, and select the AC 200mV or DC 200mV range on the
multimeter according to the type of current being measured.
4. When measuring current, it is necessary to perform zero adjustment before
measuring. That is to say, rotate the zero adjustment knob of the current probe until
the reading on the multimeter is close to zero. When connecting an oscilloscope to
measure DC current, set DC coupling. Before measuring, rotate the zero adjustment
button of the current probe until the oscilloscope's glow line returns to the reference
position, and then release the zero adjustment button.
5. When the 10mV/A range of the current probe is selected, the data measured by a
multimeter or oscilloscope (in mV) multiplied by 100 is the actual current value, and
the unit of the current value is mA. For example, if the value measured by the current
multimeter is 10mV, the actual current value of the current-carrying conductor under
test is 10×100=1000mA.
When the 1mV/A range of the current probe is selected, the data measured by a
multimeter or oscilloscope is multiplied by 1000 to obtain the actual current value, and
the unit of the current value is mA. For example, if the value measured by the current
multimeter is 5mV, the actual current value of the current-carrying conductor under
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