Description of the structure of the universal surface panel
The panel layout of various analog multimeters is not exactly the same. The panel structure of the analog multimeter generally includes a scale, a range selection switch, a mechanical zero adjustment knob, an ohm gear zero adjustment knob, and a jack or terminal for wiring.
The panel structure diagram of the analog multimeter
The external panel of the instrument consists of five parts, and the functions of each part are as follows:
(1) Scale: Displays various measured values and ranges.
(2) Range selection switch: switch between different ranges and physical quantities according to specific conditions.
(3) Mechanical zero adjustment knob: used to calibrate the mechanical zero of the pointer.
(4) Ohm range zero adjustment knob: used for electrical zero adjustment.
(5) Jack or terminal: used for external test probe.
