Les multimètres sont largement utilisés dans expérimental pratique enseignement et instrumentation maintenance. This article introduits the correct use methods and requirements of multimeters, as well as precautions in use.
There are many structural forms of the multimeter, and the layout of the knobs and switches on the panel is different. Therefore, before using the multimeter, one should soigneuse understand and be familiar with the functions of each component, and at the same time, distinguish the measurement t corresponding to each scale on the panel. the t.
In addition, only by using the multimeter correctement can the measurement error be reduced to a minimum. The multimeter should be placed horizontally before use, and check whether the pointer is at zero. If not, adjust the mechanical zero adjustment screw in the middle of the multimeter to make the pointer point to zero. Connect the connecting wire of the red test rod to the red terminal or the socket marked with " plus ", and connect the connecting wire of the black test rod to the black terminal or the socket marked with "one".
Tournant le commutateur vers le souhaité position accordant à le objet à être mesuré. Pour exemple, quand mesure le AC tension, le transfert commutateur devrait être tourné verse le correspondant intervalle. On some multi-purpose dials, the type selection knob and the limit change knob are set séparément. Quand dans utilisation, le type sélection knob should be turned to the corresponding gear to be tested, and then the t limit change knob should be turned to the corresponding gear to obtain an appropriate t limit. Special attention should be paid to the selection of species, otherwise serious consequences may occur.
