Measuring Capacitance - Keysight Technologies U1231A Guia Del Usuario

Measuring Capacitance

Set up your multimeter to measure capacitance as shown in
the test points and read the display.
To avoid possible damage to the multimeter or to the equipment under test,
CAUTION
disconnect circuit power and discharge all high-voltage capacitors before
measuring capacitance. Use the DC voltage function to confirm that the
capacitor is fully discharged.
– The multimeter measures capacitance by charging the capacitor with a
NOTE
–
Figure 2-16
– To improve measurement accuracy of small value capacitors, press
NOTE
– For measuring capacitance values greater than 1000 μF, discharge the
Keysight U1231A, U1232A, and U1233A User's Guide
known current for a known period of time, measuring the resulting voltage,
and then calculating the capacitance.
is shown on the left of the display when the capacitor is charging, and
is shown when the capacitor is discharging.
Capacitance display
the test leads open to subtract the residual capacitance of the multimeter
and leads.
capacitor first, then select a suitable range for measurement. This will speed
up the measurement time and also ensures that the correct capacitance
value is obtained.
Making Measurements
Figure 2-17. Probe
2
with
69