3.5 Basic Operations
3-40 ZM2376
For inductors with core or ceramic capacitors which have nonlinear voltage-current characteristics,
the measured value varies depending on the voltage applied to the DUT, the current flowing in the
DUT, and the signal distortion (waveform). The signal distortion mainly depends on the output
impedance and impedance bridge method of the LCR meter. When the impedance of DUT is low
enough or high enough for the output impedance, almost the same measured value can be obtained
regardless of the output impedance, by keeping the current flowing in the DUT or the voltage
applied to the DUT constant.
When measuring low impedance, if the output impedance is reduced, the voltage
applied to the DUT may increase greatly. When measuring a DUT weak to the
reverse voltage or overvoltage, do not exceed the permissible range, for
example, by reducing the measurement signal level in advance.
When a number of DUTs are measured
It is recommended to hold the measurement range when measuring a number of DUTs having almost
same value. If you connect or disconnect DUTs when both the internal trigger and the automatic
range selection are set, the measurement range is switched at each connection/disconnection to
increase the measurement time.
Measurement range of DC (direct-current) resistance
If DC resistance is selected as a secondary parameter, the measurement range of DC resistance is
displayed in the measurement range setting menu. The DC resistance measurement range is
independent from the AC impedance measurement range, and normally it is automatically selected.
In the remote control, it can be held to specific range. To return to automatic selection by the panel
operation, initialize it with the initialize menu.
Measurement range of DC (direct-current) resistance
RANGE: Manual 100kΩ DC100mΩ Rd:25Ω-100
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