What problems should be paid attention to in the use of clamp meters?
1) Mechanical zero adjustment is required before measurement, and the appearance of the clamp meter should be checked at the same time.
(2) Select the appropriate range, first select the large range, then select the small range or see the nameplate value for estimation.
(3) When the minimum measurement range is used to measure and the reading is not obvious, the measured wire can be wound several times, and the number of turns should be based on the number of turns in the center of the jaw, then the reading = indicated value × range / full deviation × turns number
(4) After the measurement is completed, the transfer switch should be placed at the maximum range.
(5) When measuring, the wire to be tested should be placed in the center of the jaws, and the jaws should be closed tightly to reduce errors.
