Digital Multimeter Measuring Resistance
Insert the test leads into the "COM" and "VΩ" holes, turn the knob to the required range in "Ω", and connect the test leads to the metal parts at both ends of the resistor.
Notice:
1. If the measured resistance value exceeds the maximum value of the selected range, it will display over-range "1", and a higher range should be selected. For a resistance greater than 1MΩ or higher, it will take a few seconds for the reading to be stable. This is normal.
2. When there is no connection, such as an open circuit, the meter will display "1".
3. When checking the impedance of the line under test, ensure that all power sources in the line under test are removed and all capacitors are discharged. If there are power sources and energy storage components in the line under test, it will affect the accuracy of the line impedance test.
4. For the 200MΩ range of the multimeter, there are 10 digits when there is a short circuit. When measuring a resistance, these 10 digits should be subtracted from the measurement reading. For example, when measuring a resistance, it is displayed as 101.0, and 10 characters should be subtracted from 101.0. The actual resistance value of the measured component is 100.0, which is 100MΩ.
5. You can touch the resistance with your hands during the measurement, but do not touch both ends of the resistance with your hands at the same time - the human body is a conductor with high resistance but finite size.
