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3-2 AC/DC Current Measurement
1. Set the slide switch at " A B " position.
2. Open Spring-loaded clamp by pressing trigger on left side of meter.
3. Position clamp around wire or conductor and release clamp trigger smoothly , do not release quickly, make sure
that the clamp is entirely closed. Position the conductors at the center of the clamp jaws for accurate measure-
ment . The clamp must be positioned around only one conductors of a circuit .
If the clamp is placed around two or more current-carrying conductors , the meter reading will be FALSE.
4. For DC measurement , the reading is positive value when the current flows from the upper side to the lower
side of the instrument as Fig. 2.
5. Using the zero switch to zero the reading. Due to the high sensitivity of the clamp meter, must zero in the same
direction as in measurement to avoid interference by external magnetic field. (see Fig.3)
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