A method for measuring resistance with a pointer multimeter
1) Rotate the function to transfer the switch to the ohm range, and select the appropriate range (it is advisable to stabilize at the median resistance after the pointer is deflected).
2) Zero, touch the two metal rods of the watch pen with each other, pinch them tightly with your hand, and turn the "zero knob" with the other hand to adjust the zero, so that the pointer is deflected to the rightmost end of the resistance scale mark "0", and separate the two watch pens.
3) Use the two meter pens to contact the resistor electrodes stably and reliably, and you can see that the multimeter pointer begins to deflect to the right. When the pointer is stable, the measurement data is read. If the pointer stops too far to the left, change to a slightly higher range, re-"zero" and re-measureIf the pointer stops too far to the right, change to a slightly lower range, "zero" again, retest the resistance, and re-read. Note that the scale of the ohmic stop is not equidistant, but it is still equidistant within each large cell. When the pointer stops between two squares, read the number of tick marks that are close to them.
4) Multiply the number of readings by the number of magnifications of the selected range, which is the resistance value of the resistor to be measured. For example, if R 100 is used for measurement, and the pointer indicates 20, the measured resistance value is: 20 100 = 2000 = 2K.