6.6. Capacitance measurement
CAUTION!
Measurements must only be made with the circuit power OFF.
WARNING!
Capacitors can be carry very high voltages. Before measurement
discharge the capacitor. To measure a charged capacitor could
damage the clamp meter.
1. Turn off power to the device under test and discharge all
capacitors.
2. Discharge all voltage from the capacitor before measuring its
capacitance value.
Note: A safe way to discharge a capacitor is to connect a 100
kΩ resistor across the two capacitor leads.
3. Set the rotary selector switch to the capacitance range (CAP).
4. Plug the black and red test leads into the COM and V/Ω input
terminals respectively.
5. Touch the probes to the capacitor. Always observe polarity
makings when measuring pobrized capacitors.
6. For accurate results, press the ZERO key to perform zero
calibration before the measurement.
Note:
Capacitors with residual voltage and capacitors with poor
insulation resistance affect a negative test result.
7. Read capacitance value directly from the display.
8. After completing the measurement, disconnect the test leads
from the instrument.
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