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9. DC current measurement
1) Select the “ ” on the function switch. If the display does not read zero, press REL to reset the voltage measurement to zero.
You may need to repeat this after each current measurement.
2) Squeeze clamp trigger to open the clamp head and place around single conductor to be measured. Slowly release the clamp
trigger to make certain that the head is completely closed. Keep the conductor centred in the clamp head. Please note that
only one conductor can be measured at a time; multiple conductors will product an incorrect measurement.
3) Directly read out the measured DC current value from display.
4) Press SELECT at the DC current position to select AC+DC measurement.
Note:
Current measurement must be taken between 0° and 40°C. If a positive reading is achieved after measure DC current, the
current direction run from the base of the meter to the front of the meter. Never release the clamp too abruptly as the component
is sensitive to shock, heat, and magnet fields. Impact of the clamp jaws will also cause short term reading variation.
Be sure the conductor to be measured is clamped at the center of clamp head, If not, an additional reading error of ±1% may
be resulted.
10. AC current measurement
1) Select the “A~” on the function switch. Squeeze clamp trigger to open the clamp head and place around single conductor
to be measured. Slowly release the clamp trigger to make certain that the head is completely closed. Keep the conductor
centred in the clamp head. Please note that only one conductor can be measured at a time; multiple conductors will product
an incorrect measurement.
2) Main display will show the true RMS, while the right secondary display shows frequency value. Conditions must be met
when reading frequency value: input range ≥ range × 10%.
3) Press SELECT at the AC voltage measurement position to select LPF measurement
4) When measuring an initial surge current, press INRUSH while in the AC Current function. The meter will display “—” while
in the standby INRUSH mode. After starting the electrical appliance being measured, the instant-on current of the appli-
ance will be displayed. Press INRUSH again to exit the surge current measurement.
Note:
Current measurement must be taken between 0° and 40°C. If a positive reading is achieved after measure DC current, the
current direction will from the base of the meter to the front of the meter. Never release the clamp too abruptly as the compo-
nent is sensitive to shock, heat, and magnet fields. Impact of the clamp jaws will also cause short term reading variation.
Be sure the conductor to be measured is clamped at the centre of clamp head, if not, an additional reading error of +1% may
be resulted
AC Conversion utilizes the AC True RMS response and sine wave measurement for correction. The accuracy of non-wine
wave measurements can be adjusted as follows:
Crest factor 1.4~2.0, accuracy should be increased 1%;
