Functions
Selectable parameters
Ls,
Cs
Dissipation factor (D), Quality factor (Q), Equivalent
series resistance (ESR), and Phase angle (θ)
Lp, Cp
Dissipation factor (D), Quality factor (Q), Equivalent
parallel resistance (Rp), and Phase angle (θ)
― 10 ―
― 9 ―
4-5-2 Manual LCR Mode and DC Resistance Measurement
As already described, the default setting is the Auto LCR mode after
power-on, the main function can be switched to the manual LCR mode
or DC resistance mode by pressing the
L/C/R AUTO/MANU
button.
Pressing this button (
⇒
) sequentially switches the functions as follows.
Auto LCR mode
⇒
Ls or Lp function
⇒
Cs or Cp function
⇒
Rs or Rp
function
⇒
DCR function
⇒
Auto LCR mode
In the manual LCR mode, the meter automatically selects the series/
parallel mode depending on the total equivalent impedance measured
similarly to the Auto LCR mode. (Refer to 4-7)
The function of Ls, Lp, Cs, or Cp in the manual LCR mode shows
following parameters, being switched by pressing
D/Q/θ
button.
Note:
• Usually quality factor (Q) is used for inductance measurement.
Inductor with higher Q has lower resistance component.
Usually dissipation factor (D) is used for capacitance measurement.
Capacitor with lower D has lower resistance.component.
Quality factor (Q)
= Inductance (L) component / Resistance (R) component
Dissipation factor (D)
= Resistance (R) component / Capacitance (C) component
•
ESR is used for measuring equivalent series resistance of a
capacitor under a measuring frequency.
4-6 Measuring Frequency Selection
The meter provides 5 different frequencies
(100 Hz/120 Hz/1 kHz/10 kHz/100 kHz)
for more accurate measurement.
The default setting is 1 kHz, and the measuring frequency can be
selected by pressing the
TEST FREQ
button as follows.
1 kHz
⇒
10 kHz
⇒
100 kHz
⇒
100 Hz
⇒
1 kHz
Note:
The LCR impedance scale ranges and accuracies depend on the
measuring frequency.
Refer to the accuracy table in Chapter 9.
Example of resistance measurement
Example