GW Instek LCR-800 Series - Manual (Page 17)

BASIC MEASUREMENT
33
Measurement Modes
Measurement
mode The LCR-800 has a number of different
measurement modes. Primary and secondary
measurements are displayed on the screen
simultaneously. For detailed information
regarding the measurement combinations, see the
specifications on page 136. The measurement
combinations are shown in the table below.
(C/D) Capacitance/Dissipation
(C/R) Capacitance/Resistance
(L/R)* Inductance/Resistance
(L/Q) Inductance/Quality factor
(Z/θ)* Impedance/Angle
(R/Q)
Resistance/Quality factor
Panel operation 1. From the main menu, press the
MODE menu key to cycle between
the different modes.
Note
*Only the LCR-821 can select L/R and Z/θ
measurement modes.
Select Equivalent Circuit Type
Background Series or Parallel equivalent circuits can be
selected. Not all measurement modes can be used
with both series and parallel equivalent circuits.
For details about circuit types see the circuit theory
chapter on page 124.
Measurement
type
Series Parallel
Capacitance (C)
Inductance (L)
Impedance (Z)
Resistance (R)
LCR-800 User Manual
34
Panel operation 1. From the main menu, press the
CIRCUIT menu key to cycle
between the series or parallel
equivalent circuits.
Series Parallel
Set Bias voltage
Background Voltage bias can be set internally or externally. An
internal voltage bias of 2 volts is normally applied
to a DUT. External voltage bias is able to accept 0
to 30 volts with a maximum current of 200mA. For
external bias voltage connections see page 22.
When measuring a DUT, please allow 1 second to
stabilize a DUT after a bias voltage is applied. In
general a bias voltage should only be applied to
capacitors. If a bias voltage is applied to devices
with low impedance, inaccurate measurements
will occur.
Note
When an external voltage is applied, constant voltage
mode (C.V.ON) must be enabled, page 39.