Measuring Capacitance; Table 2-12 Capacitance Measurement Position - Keysight Technologies U1461A User Manual

Measuring Capacitance

Set up your tester to measure capacitance as shown in
Table 2-12 Capacitance measurement position
Legend Defaul t function
Rotary switch
Primary d isplay
position
Resistance
To avoid possible damage to the tester 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 tester measures capacitance by charging the capacitor with a known
NOTE
–
– To improve measurement accuracy of small value capacitors, press
– For measuring capacitance values greater than 1000 μF, discharge the
U1461A/U1453A User's Guide
Secondary d isplay
-
current for a known period of time, measuring the resulting voltage, and then
calculating the capacitance.
is shown on the bottom left of the display when the capacitor is charging,
and is shown when the capacitor is discharging.
the test leads open to subtract the residual capacitance of the tester and
leads.
capacitor first, then select a suitable range for measurement. This will speed
up the measurement time and also ensure that the correct capacitance value
is obtained.
Making Measurements
Figure
is pressed
Function when
Primary d isplay
Cycles between
1 Continuity
2 Diode
3 Capacitance
4 Resistance
2
2-21.
Secondary d isplay
1 -
2 -
3 Cable length
4 -
with
91