How are the various quantities measured?
38 100,000 cts digital multimeters
How are the various quantities measured? (continued)
Capacitance characterizes the ability of a component to store an electric
charge. The unit of capacitance is the farad (F). Most condensers/capacitors lie
within the range from nanofarads (nF) to microfarads (μF).
The multimeter measures capacitance by charging a capacitor with a known
current for a known time and measuring the resulting voltage. The result is the
capacitance.
Measurement of the capacitance of a
capacitor with a resolution of 1000pts
"Run" appears when the measurement
is in progress.
With large capacitances, the display of
"RUN" lasts longer.
"OL" is displayed if the value to be
measured exceeds the range limits or if
the capacitor is short-circuited.
AUTO range selection, automatic
(default) or manual: Range + or Range -
“Active” protection by PTC thermistor
Maximum open-circuit Voltage: 1V typ.,
4V max.
Use the REL function for values <10%
of the range in order to restore the
residual zero (compensation for the
capacitance of the leads)
For measurements <10nF, a
shielded lead is recommended. For
a 2-wire link, use very short wires
(<25cm) and twist them together.
Use the REL function to
compensate for the error introduced
by the measurements leads. In REL
mode, changes of range are not
available.
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