First, how to insert the multimeter probe?
Current test: first, judge the current value of the point to be measured. When the current is high, the red stylus is inserted into the V Ω Ma jack; When the current is low, the red stylus is inserted into the 10A jack; Voltage test, when the black stylus is inserted into the COM jack, pay attention to the gear selection, otherwise it will damage the multimeter; Resistance test, the stylus jack is the same as the voltage test.
Second, what problems should be paid attention to when measuring with a multimeter?
1, pay attention to zero adjustment.
The multimeter should be zeroed before each use, because the record after the last use should be zeroed, otherwise the accuracy of the measured data will be affected.
2, pay attention to the pointer calibration
After using the multimeter, pay attention to the pointer of the multimeter and keep it at zero voltage and zero current, otherwise it may be abnormal and need to be checked by calculation.
Step 3 avoid skin contact
In the process of use, the hand can't directly touch the metal part of the multimeter, which will affect the test results and even cause some safety problems.
Step 4 pay attention to the operation
When measuring current, it is impossible to measure voltage at the same time. Never shift gears, especially when measuring a relatively large current. Otherwise, it is easy to cause damage to the multimeter. You can only change gears after disconnecting the stylus.
Step 5 pay attention to the surrounding environment
The multimeter must be placed horizontally to operate, and there must be no magnetic field around it, otherwise there will be interference.
Editor's summary: The above is an introduction about how to insert the multimeter probe and what problems should be paid attention to when measuring with multimeter. I hope what Bian Xiao shared can give you some reference. If you want to know more, you can pay attention to our family. Com information.