What should be done before measuring the resistance with a multimeter?
If it is a digital meter to measure the resistance, according to the measured resistance size selection range, if you use a multimeter resistance profile of resistance measurement, the multimeter shows "1" while a range, we should choose a larger gear to measure, will hit the digital meter resistance profile pen short measure one line of resistance. Then go to measure the resistance.
The measured resistance pin from the circuit wipe off, then, will be the first pointer multimeter mechanical zero, then the pointer multimeter to the short circuit of the ohmic resistance grade 2 zero, then the probes are respectively contact the measured resistor, the body can not contact the measured resistance, then reading. If the pointer hits the RX100 file, the pointer points to 5, then 5X100.=500 looks like this.
Calibration table and rangeSchool table: two short pen is 0Range of selection: resistance value is evaluated, and the measuring range is chosen, from high to low
