Capacitance Measurement - Keysight Technologies U1701B Guía Del Usuario Y Servicios

2 Features and Functions

Capacitance Measurement

To avoid possible damage to the meter or the equipment under test,
CAUTION
disconnect circuit power and discharge the capacitor before measuring
capacitance.
Capacitance is the ability of a component to store an electrical charge. The unit of
capacitance is the farad (F). Most capacitors are within the range for nanofarad
(nF) to microfarad (μF). The meter measures capacitance by charging the
capacitor with a known current, measuring the resulting time of charging period,
and then calculating the capacitance. The larger capacitors will take longer time
to charge. The sign of C flashing means that the meter is charging capacitor. To
improve the measurement accuracy of small value capacitance, press REL with
the alligator clip leads open to subtract the residual capacitance of the meter and
leads.
Measuring tip: For measuring capacitance >1000 μF, discharge capacitor first
NOTE
and then select a suitable range to measure it. This will speed up the measuring
time to achive the correct value.
1 Power-on the meter.
2 To test for capacitance, keep an open circuit on the test leads and press REL
3 Insert the legs of the capacitor into + and – input sockets respectively. Ensure
4 Remove your hands from capacitor to allows it to be tested.
5 Read the measurement on the display.
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key to subtract the residual capacitance of the meter and leads.
that the polarity of the capacitor's leg are correct.
Keysight U1701B User's and Service Guide