• Press the ZERO reset key before measuring to clear the readings to zero.
• Open the clamp head, clasp the wire (single wire), and put the wire in the geometric center indicated in the
clamp head. Make sure that the left and right clamp
heads are completely closed, without gap between them.
• Read the measured data from LCD. If the reading is positive, it means current flows from positive end marked
on the clamp head to the negative end, and vice versa.
Take out the probe when measuring current, in order to avoid electric shock.
4. 4. Measuring of NCV Non-contact Electric Field (Figure 5) The front end of clamp head can be used for sensing
at 8-15mm from the tested object, in order to detect the
existence of AC voltage or electromagnetic field. When the simulating value of AC voltage: <,;threshold voltage
of 1 OOV, it displays “EF”; > threshold voltage of 1 OOV, LCD will display”-“, i.e.,”-“,”–,”—” and”—”
corresponding to the sensing voltage. Meanwhile, the buzzer will ring with differentiated rhythms and NCV light
will flash, to
distinguish the intensity of the electric field. When measuring range is switched to NCV measuring, the
measuring probe shall be pulled out to avoid electric shock.
5. Measuring of Temperature
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