Hioki 3504-40 C HiTester, Instruction Manual

Page: 36 / 292

3.3 Setting the Measurement Conditions
30
Equivalent Circuit Mode
This unit measures a current that flows through the sample and a voltage applied
between terminals of the measurement sample to calculate and obtain imped-
ance Z and phase angle

. Static capacitance can be obtained using Z and

values.
A series-equivalent circuit mode calculates as though a captive component C
and a resistive component were connected in series, or alternatively a parallel-
equivalent circuit mode calculates as though connected in parallel. Because the
operation is different between a series-equivalent circuit mode and a parallel-
equivalent circuit mode, the appropriate equivalent circuit mode need be
selected to reduce error margin.
See
9.3 "Measurement Parameters and Arithmetic Expressions" (p. 261)
Normally, the series-equivalent circuit mode is used for a large capacitance (low-
impedance components: approx. 100

or less). While the parallel-equivalent
circuit mode is used for a small capacitance (high-impedance components:
approx. 10 k

or more). When you are not sure about selection of equivalent-
circuit mode for the impedance such as between approx. 100

to 10 k

),
please call the parts maker.
Series-equivalent circuit
Parallel-equivalent circuit