Points to note when using 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, choose the large range first, and 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 under test should be in the center of the jaws, and the jaws should be closed tightly to reduce errors.
