How to mechanically zero a multimeter
How to mechanically zero the multimeter, the electronic multimeter does not know how to mechanically zero, the simple mechanical zeroing method of the pointer multimeter:
First open the back cover of the multimeter, you can see: pointer, moving coil, hairspring, etc. The end point of the outer ring of the hairspring is welded on the vertical column, and the upper part of the vertical column is a rotatable ring. To adjust the zero is to move the fork left and right. , use a blade or a screwdriver to turn the knob, (if it is disengaged, it cannot be mechanically zeroed.) It can be reset.
There is a circular plastic in the center under the glass surface of the multimeter, which can be adjusted with a flat-blade screwdriver, so that the pointer is adjusted to the static zero position when the multimeter is not in use, which is called mechanical zero adjustment.
