9.8 Current and Frequency Measurements
WARNING Do not measure the current on a circuit when the voltage increases to more
than 1000V. This can cause damage to the instrument and can cause injury to persons.
When measuring current, the jaws should enclose one conductor only—refer to Fig. 9-1.
Fig. 9.1 Correct (left image) and incorrect (right image)
1. Disconnect the probe leads from the meter.
2. Set the function switch to the position.
3. Select AC or DC using the button. If measuring DC Current be sure to ZERO
the display per Section 9.6, DCA Zero Mode.
4. To manually select the measurement range (scale), press the button
repeatedly. Refer to Section 9.1, Auto/Manual range mode.
5. Press the trigger to open the clamp jaws. Fully enclose one conductor—refer to
Fig. 9.2. For optimum results, center the conductor in the jaws.
6. Read the current value on the display.
7. To see the Frequency measurement for an AC Current measurement use the
button to step to the Hz display.
8. For VFD mode operation refer to Section 9.4, VFD Mode.
9. For MAX-MIN operation, refer to Section 9.5, MAX-MIN Mode.
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