2
Features and Functions
38
Keysight U1701B User’s and Service Guide
Capacitance Measurement
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.
1
Power-on the meter.
2
To test for capacitance, keep an open circuit on the test leads and press
REL
key to subtract the residual capacitance of the meter and leads.
3
Insert the legs of the capacitor into + and – input sockets respectively. Ensure
that the polarity of the capacitor’s leg are correct.
4
Remove your hands from capacitor to allows it to be tested.
5
Read the measurement on the display.
CAUTION
To avoid possible damage to the meter or the equipment under test,
disconnect circuit power and discharge the capacitor before measuring
capacitance.
NOTE
Measuring tip: For measuring capacitance >1000 µF, discharge capacitor first
and then select a suitable range to measure it. This will speed up the measuring
time to achive the correct value.
Содержание u1701b
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Страница 25: ...Features and Functions 2 Keysight U1701B User s and Service Guide 25 Figure 2 1 Tolerance operation ...
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Страница 31: ...Features and Functions 2 Keysight U1701B User s and Service Guide 31 Figure 2 4 Tolerance operation ...
Страница 34: ...2 Features and Functions 34 Keysight U1701B User s and Service Guide Figure 2 5 Set compare mode ...
Страница 37: ...Features and Functions 2 Keysight U1701B User s and Service Guide 37 Figure 2 7 Setting High Low limits ...
Страница 39: ...Features and Functions 2 Keysight U1701B User s and Service Guide 39 Figure 2 8 Capacitance measurement ...