What should we pay attention to when measuring the voltage and current in a circuit with a multimeter? What problems should we pay attention to after measuring the resistance?
Not sure if the current is, can use the current Jack and stalls to confirm, then change into small current position, can obtain more precise readings. Some of the equipment working current is small, but the electric current is large, if we use small current power jack, will burn the fuse. The case, can use small current position, but you need to use a wire short circuit to be stable after the test, and then release the shortest route.
All after the measurement (including measuring resistance), the pen is inserted back into the voltage measurement jacks knob to AC or DC voltage measuring gear. The most high-end digital remember to turn off the power.
The measured current needs to be inserted into the red pen with current Jack table, multimeter generally has small current and large current stall stalls at two different gear jack, small current fuse, current exceeds the rated value will soon burn, do not change the fuse, the current file is not good with the current gear; not fuse, generally can measure 10A current. The electric current has AC and dc gear. When the measured current is the multimeter series into the circuit under test.
Multimeter to measure voltage, pay attention to switch to the appropriate AC or dc gear, don't confuse, also choose the range; the measured voltage is one parallel to the circuit to be tested on the node.
