7.Supplemental Information
This section provides supplemental information for user
consideration when operating the LCR meters.Some
recommendations and explanations are provided to help aid in
the use of some functions and features,in which can help the user
gain optimal and accurate measurement results.
Test frequency can greatly affect the results of measurement
reading,especially when measuring inductors and capacitors.This
section provides some recommendations and suggestions to
consider.
When measuring capacitance selecting,the right frequency is
important in obtaining the most accurate measurement results.
Generally,a 1 kHz test frequency is used to measure capacitors
that are 0.01
7-1 Selecting Test Frequency
Capacitance
μF or smaller.For capacitors that are 10 μF or larger,a
lower frequency of 120 Hz is used.Following this trend,high test
frequencies are best for testing very low capacitance components.
For large capacitance components,low frequency would be optimal.
For example,if the capacitance of the component is to be in the
mF range,than selecting 100 Hz or 120 Hz for test frequency
would give much better results.The results will also be obvious
because if the same component was tested with 1 kHz or 10 kHz,
the measured readings may look erroneous on the display.
In all cases,it is best to check with the manufacturer’s data
sheet in order to determine the best test frequency to use for
measurement.
Typically,a 1 kHz test frequency is used to measure inductors
that are used in audio and RF circuits.This is because these
components operate at higher frequencies and require that they
be measured at higher frequencies such as 1 kHz or 10 kHz.
However,a 120 Hz test signal is used to measure inductors that
Inductance
20
Dual Display LCR Meter Instruction Manual
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