GW Instek LCR-8101, Руководство пользователя, Страница: 14 / 59

GETTING STARTED
27
8b. Set vertical
scale (Ab
Manual fit)
Press F2 (Abs/%) to select Abs, then press
F3 (Manual/Auto fit) to select Manual fit.
Move the cursor to Hi, set the Hi value.
Repeat this for Lo as well. The minimum
and maximum vertical range is manually
configured. Page82
8c. Set vertical
scale (Percentage
+ Auto fit) Press F2 (Abs/%) to select %, then press
F3 (Manual/Auto fit) to select Auto fit.
Move the cursor to Nominal and set the
nominal value. LCR-8101 automatically
configures the vertical range around the
nominal value. Page87
8d. Set vertical
scale (Percentage
+ Manual fit)
Press F2 (Abs/%) to select %, then press
F3 (Manual/Auto fit) to select Auto fit.
Move the cursor to Hi, set the Hi
percentage. Repeat this for Lo and
Nominal. The minimum and maximum
vertical range is manually configured. Page84
9. Plot graph
Press F4 (Start). The graph is drawn on the
display. To abort, press F6 (Abort). Page90
10. Fit graph into
display When plotting is finished, press F1
(Function), then F2 (Fit). The vertical scale
is automatically adjusted to include all the
plotted line. Press F1 (View) to go back. Page92
11. Move marker
Press the Left/Right keys to move the
marker on the graph. To move the marker
to the peak, press F1 (Function) and F3
(Peak). To move to the dip, press F4 (Dip).
Press F1 (View) to go back. Page93
12. Return to
previous menu Press F6 (Return) or press the Menu key to
go back to the previous or the other menu.
Page93
LCR-8101 User Manual
28
Measurement tip
Hi/Low
impedance
If the measured impedance is greater than 1k Ω , the
standard four-terminal connection is not
necessary. Run S/C trim to remove the effect of
series lead impedance.
If the measured impedance is lower than 1k
Ω ,
four-terminal connection can reduce the effect of
contact resistance at the test component.
Metal component
case connection
A large area of metal can add noise to the
measurement. Here is how to minimize the effect.
If the metal is connected to one of the terminals,
this should be connected to the Hforce (Yellow)
terminal side.
If the metal is NOT connected to either of the
terminals, connect the GND clip.
Small-sized
capacitor When measuring small, SMD-size capacitors, run
O/C trim at the measurement frequency (Spot
trimming) to eliminate the residual capacitance.
Make sure the measurement lead positions are
fixed during trimming.
Small-sized
inductor
When measuring small, SMD-size inductors, run
S/C trim at the measurement frequency (Spot
trimming). LCR-8101 measures the difference
between the inductance of S/C trimming and the
inductance of test component. Four-terminal
fixture set is recommended and make sure the
measurement leads are fixed during trimming.
Wire inductance
The wire inductance should be subtracted from the
measurement result.
•
5cm, 1mm diameter wire has 50nH inductance
•
5cm, 2mm diameter wire has 40nH inductance