Patent ID: 6646562
Filing Date: 2003-11-11
Classification: G01R

Abstract:
A hooking-type fully automatic electric meter with hooking means comprising:a main body being provided thereon with a display and a single operating key being provided at suitable positions thereon with detecting probes, and being provided on the top thereof with an electric current sensing clamp for receiving therein a current carrying conductor; a switching mechanism with an auto selection function being provided for judging and selection through said main body of said electric meter under inputting from the outside during activating of said electric meter, it provides four kinds of measuring modes including DC voltage, AC voltage, electric resistance and AC electric current measurement; a detecting mechanism with priority with which the signal inputting through said probes takes priority of the signal inputting through said electric current sensing clamp when in automatic switching; said main body of said electric meter thereby is automatically intelligently switched by single key manipulating to save actions and time for operating; and said electric meter is adapted to hanging with said electric current sensing clamp on any electric line in favor of convenient observing the measured electric values, thereby, convenience and efficiency in operating can be increased, and error of adjustment in operating by a user can be avoided, this significantly raise the industrial safety in measuring large volume of electric current.