This manual contains proprietary information, which is protected by
copyrights. All rights are reserved. No part of this manual may be
photocopied, reproduced or translated to another language without
prior written consent of Good Will company.
The information in this manual was correct at the time of printing.
However, Good Will continues to improve products and reserves the
rights to change specification, equipment, and maintenance
ISO-9001 CERTIFIED MANUFACTURER
procedures at any time without notice.
Good Will Instrument Co., Ltd.
No. 7-1, Jhongsing Rd., Tucheng City, Taipei County 236, Taiwan.
This chapter contains important safety instructions
that you must follow when operating LCR-8101
and when keeping it in storage. Read the
following before any operation to insure your
safety and to keep the best condition for LCR-8101.
Safety Symbols
These safety symbols may appear in this manual or on LCR-8101.
WARNING
CAUTION
Warning: Identifies conditions or practices that
could result in injury or loss of life.
Caution: Identifies conditions or practices that
could result in damage to LCR-8101 or to other
properties.
DANGER High Voltage
Attention Refer to the Manual
Protective Conductor Terminal
Earth (ground) Terminal
LCR-8101 User Manual
Safety Guidelines
General
Guideline
CAUTION
Power Supply
WARNING
Fuse
WARNING
• Do not place any heavy object on LCR-8101.
• Avoid severe impacts or rough handling that
leads to damaging LCR-8101.
• Do not discharge static electricity to LCR-8101.
• Do not block or obstruct the cooling fan vent
opening.
• Do not perform measurement at circuits directly
connected to Mains (Note below).
• Do not disassemble LCR-8101 unless you are
qualified as service personnel.
(Measurement categories) EN 61010-1:2001 specifies the
measurement categories and their requirements as follows. LCR8101 falls under category I.
• Measurement category IV is for measurement performed at the
source of low-voltage installation.
• Measurement category III is for measurement performed in the
building installation.
• Measurement category II is for measurement performed on the
circuits directly connected to the low voltage installation.
• Measurement category I is for measurements performed on
circuits not directly connected to Mains.
• AC Input voltage: 115V/230V, 50/60Hz
• The power supply voltage should not fluctuate
more than 10%.
• Connect the protective grounding conductor of
the AC power cord to an earth ground, to avoid
electrical shock.
• Fuse type: T3A/250V
• Make sure the correct type of fuse is installed
before power up.
5
6
SAFETY INSTRUCTION
LCR-8101 User Manual
Cleaning LCR8101
Operation
Environment
Storage
environment
• To ensure fire protection, replace the fuse only
with the specified type and rating.
• Disconnect the power cord before fuse
replacement.
• Make sure the cause of fuse blowout is fixed
before fuse replacement.
• Disconnect the power cord before cleaning.
• Use a soft cloth dampened in a solution of mild
detergent and water. Do not spray any liquid.
• Do not use chemical or cleaner containing harsh
material such as benzene, toluene, xylene, and
acetone.
• Location: Indoor, no direct sunlight, dust free,
almost non-conductive pollution (Note below)
• Relative Humidity: < 80%
• Altitude: < 2000m
• Temperature: 0°C to 40°C
(Pollution Degree) EN 61010-1:2001 specifies the pollution degrees
and their requirements as follows. LCR-8101 falls under degree 2.
Pollution refers to “addition of foreign matter, solid, liquid, or
gaseous (ionized gases), that may produce a reduction of dielectric
strength or surface resistivity”.
• Pollution degree 1: No pollution or only dry, non-conductive
pollution occurs. The pollution has no influence.
• Pollution degree 2: Normally only non-conductive pollution
occurs. Occasionally, however, a temporary conductivity caused
by condensation must be expected.
• Pollution degree 3: Conductive pollution occurs, or dry, non-
conductive pollution occurs which becomes conductive due to
condensation which is expected. In such conditions, equipment
is normally protected against exposure to direct sunlight,
precipitation, and full wind pressure, but neither temperature
nor humidity is controlled.
• Location: Indoor
• Relative Humidity: < 80%
• Temperature: −40°C to 70°C
Power cord for the United Kingdom
When using LCR-8101 in the United Kingdom, make sure the power
cord meets the following safety instructions.
NOTE: This lead/appliance must only be wired by competent persons
WARNING: THIS APPLIANCE MUST BE EARTHED
IMPORTANT: The wires in this lead are coloured in accordance with
the following code:
Green/ Yellow: Earth
Blue: Neutral
Brown: Live (Phase)
As the colours of the wires in main leads may not correspond with the
colours marking identified in your plug/appliance, proceed as follows:
The wire which is coloured Green & Yellow must be connected to the
Earth terminal marked with the letter E or by the earth symbol
coloured Green or Green & Yellow.
The wire which is coloured Blue must be connected to the terminal
which is marked with the letter N or coloured Blue or Black.
The wire which is coloured Brown must be connected to the terminal
marked with the letter L or P or coloured Brown or Red.
If in doubt, consult the instructions provided with the equipment or
contact the supplier.
This cable/appliance should be protected by a suitably rated and
approved HBC mains fuse: refer to the rating information on the
equipment and/or user instructions for details. As a guide, cable of
0.75mm2 should be protected by a 3A or 5A fuse. Larger conductors
would normally require 13A types, depending on the connection
method used.
Any moulded mains connector that requires removal /replacement
must be destroyed by removal of any fuse & fuse carrier and disposed
of immediately, as a plug with bared wires is hazardous if a engaged in
live socket. Any re-wiring must be carried out in accordance with the
information detailed on this label.
or
7
8
GETTING STARTED
GETTING STARTED
This chapter describes LCR-8101 in a nutshell,
including its main features, front / rear panel
appearance, and power up sequence. Use the
Tutorial section for a quick access to the main
functionalities, step by step.
Main Features Main Features ................................................. 10
Measurement
item
Panel overview Front Panel Overview ...................................... 12
Measurement tip Measurement tip............................................. 28
9
10
GETTING STARTED
LCR-8101 User Manual
Measurement Type
Measurement item
Primary
measurement
Secondary
measurement
Measurement combination
:Available, :Not available
1st measurement 2nd measurement Circuit model Graph Prog
Q D R
Capacitance (C)
Inductance (L)
Reactance (X)
Susceptance (B)
Impedance (Z)
Admittance (Y)
DC Resistance(RDC)
Quality factor (Q)
Dissipation factor (D)
AC Resistance (RAC)
Conductance (G)
Angle (θ)
*Prog: Multi-step program
Capacitance (C) Inductance (L)
Reactance (X) Susceptance (B) (=1/X)
Impedance (R) Admittance (Y) (=1/Z)
DC Resistance (R
AC Resistance (R
)
DC
) Quality factor (Q)(=1/D)
AC
Dissipation factor (D) Angle (θ) (for Z and Y)
AC G Angle Series
Parallel
Front Panel Overview
Main
Display
Main display
Function keys
Local key
Function
Keys
LCR-8101
Local
Key
Power
Switch
Menu
Key
Precision LCR Meter
DC , 20 1M Hz
Current
Return
320 by 240, DST LCD display.
F1
F6
Local
Menu key
Single/Repetitive
key
Menu
Sing/Rep
Single/
Repetitive
Key
Assigned to the menu on the right
side of the display.
Calibration
Key
D / Q
Menu
Local
Low
Potential
S
V / A
k
H
M
F
Code
Clear
Enter
DISCHARGE TEST DEVICE BEFORE CONNECTING
FORCELSENSEHSENSEHFORCE
L
p
Trig
n
∝
m
High
Potential
Unit
Keys
When the instrument is under
remote control mode, sets the
instrument back into local panel
operation. For remote control
details, see page
94.
Shows the main menu on the
display.
Selects Single measurement mode
(manual triggering) or Repetitive
measurement mode (automatic
triggering). See page
49 for details.
Trigger
Key
Arrow
Keys
Code
Key
Clear
Key
Enter
Key
Numerical
Keys
Current
Out
11
12
GETTING STARTED
L
L
LCR-8101 User Manual
Calibration key
Unit keys
Trigger key
Calibration
Enters the calibration mode. See
page
105 for calibration details.
Enters unit when editing values.
D/Q
V/A
H
F
Ω
S
k
Dissipation factor or Quality factor
Voltage or Ampere
Henry (for Inductance)
Farad (for Capacitance)
Ohm (for Resistance, Impedance)
Siemens (for Susceptance,
Admittance)
Kilo (10
3
)
p
Pico (10
–12
)
µ
Micro (10
–6
)
Trig
Manually triggers measurement.
Available only in Single
measurement mode (page
M
n
m
Mega (10
Nano (10
Milli (10
49).
Enter key
Numerical keys
Enter
Confirms the entered value or
selection.
Enters numeric values.
Measurement
terminals
LFORCE
LSENSE
HSENSE
HFORCE
6
)
-9
)
–3
)
Accepts measurement fixture. For connection
details, see page
19.
Current return
Low potential
High potential
Current output
FORCE
SENSE
H
SENSE
H
FORCE
Power switch
Turns On
or Off the main
power. For power up sequence, see
page
17.
Arrow keys
Selects menu items or parameters.
The Up/Down and Left/Right keys
are used in pairs.
Code key
Clear key
Code
Clear
Enters system codes for changing
drive Voltage/Current display
(page
51) or frequency adjustment
resolution (page
46).
Clears all previous entries when
editing values.
13
14
GETTING STARTED
LCR-8101 User Manual
Rear Panel Overview
GPIB
Port
SER.NO. LABEL
GPIB port /
RS-232C port
RS-232C
Port
GPIB
GPIB
RS232
Display
Contrast
Knob
RS232
WARNING
Voltage
Selector
Fuse
Holder
AC 115 / 230V 50 / 60Hz
FUSE 250V T 3A
Accepts remote control cables.
GPIB: 24-pin female
RS-232C: DB-9 pin male
See page
details.
94 for remote control
115V
Mains
Socket
Tilt Stand & Power Up
Tilt stand
Low angle
High angle
Display contrast
knob
Voltage selector /
Fuse holder /
Mains socket
Sets the display contrast level. See
page
17 for details.
115V
Voltage selector sets the AC mains
Voltage, 115V or 230V.
Fuse holder contains the main
fuse, T3A/250V. For fuse
replacement details, see page
110.
Mains socket accepts power cable.
See page
17 for power-up details.
15
16
GETTING STARTED
LCR-8101 User Manual
Power up
Panel operation
1. Set the rear panel
115V
230V
Voltage selector to the
correct position
according to the AC
mains voltage.
115V
230V
2. Connect the power
cord to the socket.
3. Turn On the power
switch. The display
becomes active in 2~3
r
e
t
e
M
R
C
z
L
H
n
M
o
i
1
s
i
c
0
e
r
2
,
P
C
D
seconds.
4. Use the contrast knob on the rear panel to
adjust the LCD display brightness.
Select AC mains frequency (50/60Hz)
Background
Although LCR-8101 works under both 50 and
60Hz power frequencies, we recommend selecting
the frequency that matches the local setting to get
the best measurement precision, especially at
Panel operation
lower frequencies (< 100Hz).
1. Press the Menu key, then F5
(System). The system menu appears.
Menu
F5
Precision LCR Meter LCR-8101
Software version 2.00 Jan 20 2007
Frequency
1MHz
RS-232
Graph mode
GPIB
Line frequency
Beep
GPIB address
:
50Hz
::OFF
5
*7
53.388fF
50mVac1.5000kHz
Range
Speed Med
Counterclockwise:
Dark
MEASUREMENT MODE
0.01234
–
0.2179nSD
HI
HiLo+1.00%
–1.00%
Vm:549.8mV
Auto
Im:724.9pA
C LXBZY
Q DRG
Parallel
Hide Scale
Abs
Save Nom
MEASUREMENT MODE
*7
–
53.388fF
%
50mVac 1.5000kHz
Range
Speed Med
0.01234
0.2179nSD
HI
HiLo+1.00%
Auto
Clockwise:
Light
C LXBZY
Parallel
Hide Scale
–1.00%
Vm:549.8mV
Save Nom
Im:724.9pA
Q DRG
Abs
%
17
2. Press the Up/Down key and move
the cursor to Line frequency.
:Line frequency50Hz
3. If necessary, press the Left/Right
key to select the frequency, from 50
18
to 60Hz or from 60Hz to 50Hz.
:Line frequency60Hz
GETTING STARTED
H
H
LCR-8101 User Manual
Fixture Connection
Fixture structure
Background
Diagram
Description HFORCE
The standard fixture is a four-wire type with a
common terminal for screen connection. The outer
terminals (Hforse and Lforce) provide the current
and the inner terminals (Hsense and Lsense)
measures the potential.
LFORCE LSENSEHSENSE HFORCE
GND
(Optional)
+–
Carries the signal current source.
Connected to the + side of the device
under test.
Fixture connection
Panel operation
1. Discharge the test component before connecting
the fixture set.
2. Connect each fixture terminal to the front panel
BNC connector with matching color.
L
FORCE
L
SENSE
SENSE
FORCE
3. Connect the fixture to the test component. If the
component has polarity, connect the H side to
the positive lead and the L side to the negative
lead. Make sure the distance between the lead
base and fixture clip is short enough.
H side
HSENSE
Together with Lsense, monitors the
Potential. Connected to the + side of
L side
the device under test.
LSENSE
Together with Hsense, monitors the
Potential. Connected to the – side of
4. If the test component has an outer case
unconnected to either of the lead, connect the
ground terminal for noise level reduction.
the device under test.
LFORCE
Accepts the signal current return.
Connected to the – side of the device
under test.
GND
If the test component has a large
metal area NOT connected to either
of the terminals, connect the GND
clip to minimize noise level.
19
20
GETTING STARTED
LCR-8101 User Manual
Tutorials (Step by Step Operations)
Basic measurement (without Pass/Fail test)
Step Description Details
1. Connect fixture
2. Enter menu
3. Hide scale
4. Select measurement item
5. Select series/
parallel circuit
6. Set
measurement
frequency
7. Set
measurement
Vol tag e
8a. Select Single
measurement
8b. Select
Repetitive
measurement
Optional settings
Connect the fixture to the DUT. Page
Press the Menu key, followed by F1 (AC
measurement) or F2 (Rdc).
Press F4 (Show/Hide Scale) to hide the
scale (or show the circuit diagram)
Press F1 (First) and F2 (Second) repeatedly
to select the measurement item.
If available, press F3 (Series/Parallel) to
select the equivalent circuit model.
Press the Left/Right arrow key and move
the cursor to the Frequency. Use the
numerical and unit keys to set the level.
Press the Left/Right arrow key and move
the cursor to the Voltage. Use the
numerical and unit keys to set the level.
Press the Sing/Rep key to select Single
(manual trigger) measurement. To trigger
measurement, press the Trig key.
Press the Sing/Rep key to select
Repetitive (automatic trigger)
measurement. Press the Left/Right arrow
key and move the cursor to Speed. Press
the Up/Down key to select the speed.
To hide the drive Voltage/Current, press
the Code key and type 80, the Enter key.
Set the Range (internal setting) to Auto,
use the Left/Right key to move the cursor
and Up/Down key to change the setting.
19
41
Page
Page
43
Page
44
Page
43
46
Page
48
Page
49
Page
Page
50
Page
51
Page45
Pass/Fail test (Single step)
Step Description Details
1. Connect fixture
2. Set buzzer
sound
2. Enter menu
3. Show scale
4. Select measurement item
5. Select series/
parallel circuit
6. Set
measurement
frequency
7. Set
measurement
Vol tag e
8a. Select Single
measurement
8b. Select
Repetitive
measurement
Connect the fixture to the DUT. Page
Press the Menu key, then F5 (System).
Press the Up/Down arrow key to move
the cursor to Beep, then use the Left/Right
key to select setting (Off recommended).
Press the Menu key, followed by F1 (AC
measurement) or F2 (Rdc).
Press F4 (Show/Hide Scale) to show the
scale (or hide the circuit diagram)
Press F1 (First) and F2 (Second) repeatedly
to select the measurement item.
If available, press F3 (Series/Parallel) to
select the equivalent circuit model.
Press the Left/Right arrow key and move
the cursor to the Frequency. Use the
numerical and unit keys to set the level.
Press the Left/Right arrow key and move
the cursor to the Voltage. Use the
numerical and unit keys to set the level.
Press the Sing/Rep key to select Single
(manual trigger) measurement. To trigger
measurement, press the Trig key.
Press the Sing/Rep key to select
Repetitive (automatic trigger)
measurement. Press the Left/Right arrow
key and move the cursor to Speed. Press
the Up/Down key to select the speed.
Page
Page
Page
Page
Page
Page
Page
Page
Page
19
54
41
55
44
56
46
48
49
50
21
22
GETTING STARTED
LCR-8101 User Manual
9a. Select
Absolute
measurement
9b. Select
Percentage
measurement
Optional settings
Press F5 (Abs/%) to select Abs. Press the
Left/Right key to move the cursor to Lo
(Low limit). Use the numerical and unit
keys to set the Low limit. Repeat this for
Hi (Hi limit) as well.
Press F5 (Abs/%) to select %. Press the
Left/Right key to move the cursor to the
Nominal value. Use the numerical and
unit keys to set the numerical level. Then
move the cursor to Lo (Low limit) and set
the percentage. Repeat this for Hi (Hi
limit) as well. To save the latest
measurement result as Nominal, press F6
(Save Nom).
To hide the drive Voltage/Current, press
the Code key and type 80, the Enter key.
Set the Range (internal setting) to Auto,
use the Left/Right key to move the cursor
and Up/Down key to change the setting.
Page
58
Page
59
Page
51
Page45
Pass/Fail test (Multiple step)
Step Description Details
1. Connect fixture
2. Set buzzer
sound
2. Enter multiple
step mode
2. Select
measurement
item
3a. Set
parameters
3b. Add steps
3c. Copy to the
next step
Connect the fixture to the DUT. Page
Press the Menu key, then F5 (System).
Press the Up/Down arrow key to move
the cursor to Beep, then use the Left/Right
key to select setting (Off recommended).
Press the Menu key, then F3 (Multi step). Page
Press the arrow keys to move the cursor to
Step 01 Func. Press F1 (Prog) repeatedly to
select the item.
Press the arrow keys to move the cursor to
the parameters below. Use the numerical
and unit keys for editing values or F1
(Prog) for selecting options.
Move the cursor to the first empty step
and press F1 (Prog).
Press F2 (Copy). The selected step
contents are copied and inserted to the
next step.
Page
Page
Page
Page
Page
19
62
63
65
65
65
68
3d. Delete step
Press F3 (Delete). The selected step is
Page
68
deleted.
4. Save program
Press F4 (Save). The edited program is
Page
71
saved.
5. Enter Run
Press F6 (Run). The Run menu opens. Page
69
menu
6. Set Single or
Repetitive
Press the Sing/Rep key to select Single
(manual trigger) or Repetitive (auto
Page
69
trigger).
23
24
GETTING STARTED
LCR-8101 User Manual
7. Start running
File operation:
new program
File operation:
load
File operation:
delete
File operation:
save as
If the test has not started yet, press F1
(Start) or Trig key. Press F6 (Set) to go
back to the setup menu.
Press F5 (File), then F4 (New). Press the
Left/Right keys to move the cursor and
press the Down key to select character. To
confirm the file name, press the Enter key.
A new file appears.
To delete a character, press the Up key.
To quit, press the Clear key.
Press F5 (File), then F1 (Load). Use the
arrow keys to select the program and
press F1 (Load).
Press F5 (File), then F2 (Delete). Use the
arrow keys to select the program and
press F5 (Del).
Press F5 (File), then F3 (Save as). Press the
Left/Right keys to move the cursor and
press the Down key to select character. To
confirm the file name, press the Enter key.
A new file appears.
To delete a character, press the Up key.
To quit, press the Clear key.
Page
Page
Page
Page
Page
69
63
73
74
71
Graph mode
Step Description Details
1. Connect fixture
2. Enter graph
mode
3. Select item
4a Set horizontal
scale (frequency)
4bSet horizontal
scale (voltage)
5. Select speed
Connect the fixture to the DUT. Page
Press the Menu key, then F4 (Graph). Page
Press F5 repeatedly to select the graph
item.
Press the Up/Down key to move the
cursor to Sweep. Press the Left/Right key
to select Frequency. Then move the cursor
to Start Frequency, set the value using the
numerical and unit keys. Repeat this for
Stop Frequency and Level (drive Voltage).
Press the Up/Down key to move the
cursor to Sweep. Press the Left/Right key
to select Voltage. Then move the cursor to
Start Voltage, set the value using the
numerical and unit keys. Repeat this for
Stop Voltage and Freq (frequency).
Press the Up/Down key to move the
cursor to Speed. Press the Left/Right key
to select the measurement speed.
19
76
Page
77
Page80
Page
78
Page
89
6. Select step size
Press the Up/Down key to move the
Page89
cursor to Step size. Press the Left/Right
key to select the data step (all or sampled).
7. Select linear or
log scale
8a. Set vertical
scale (Absolute +
Auto fit)
Press F1 (Lin/Log) to select linear or
logarithmic horizontal scale.
Press F2 (Abs/%) to select Abs, then press
F3 (Manual/Auto fit) to select Auto fit.
LCR-8101 automatically configures the
Page
Page
78
86
vertical scale.
25
26
GETTING STARTED
LCR-8101 User Manual
8b. Set vertical
scale (Absolute +
Manual fit)
8c. Set vertical
scale (Percentage
+ Auto fit)
8d. Set vertical
scale (Percentage
+ Manual fit)
9. Plot graph
10. Fit graph into
display
11. Move marker
12. Return to
previous menu
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.
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.
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.
Press F4 (Start). The graph is drawn on the
display. To abort, press F6 (Abort).
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.
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.
Press F6 (Return) or press the Menu key to
go back to the previous or the other menu.
Page
82
Page
87
Page
84
90
Page
Page
92
Page
93
Page93
Measurement tip
Hi/Low
impedance
Metal component
case connection
Small-sized
capacitor
Small-sized
inductor
If the measured impedance is greater than 1kΩ, 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 1kΩ,
four-terminal connection can reduce the effect of
contact resistance at the test component.
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.
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.
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.
The wire inductance should be subtracted from the
measurement result.
• 5cm, 1mm diameter wire has 50nH inductance
• 5cm, 2mm diameter wire has 40nH inductance
27
Wire inductance
28
GETTING STARTED
LCR-8101 User Manual
Frequency factor
in inductor
measurement
Air-cored coils
Iron-cored and
ferrite inductor
When an inductor is measured at a frequency
much lower than that for which it is designed (for
example, an HF choke tested at AF), the inductor
tends to behave as an inductive resistor. In these
circumstances, measurement accuracy is widened
by (1 + 1/Q) where Q is the quality factor.
Air-cored coils can pick up noise very easily,
therefore they should be kept well clear of any test
equipment that may contain power transformers
or display scan circuitry. Also, keep the coils away
from metal objects which may modify inductor
characteristics.
The effective value of iron-cored and ferrite
inductors can vary widely with the magnetization
and test signal level. Measure them at the AC level
and frequency in use. When core materials are
damaged by excessive magnetization (for example:
tape heads and microphone transformers), check
that the test signal is acceptable before connection.
BASIC MEASUREMENT
Basic measurement measures DUT in numerical
style. Advanced measurements are available in
Measurement
item
Pass/Fail test mode (page
results are compared with user-defined limits, and
in Graph mode (page
is displayed in graphical representation.
In general, two items, primary and secondary, are combined in a
single measurement. The following table shows the available
combinations. Overview of each measurement items is listed from
the next page.
Measurement combination
:Yes :No
1st measurement 2nd measurement Circuit model Graph Prog
Q D R
Capacitance (C)
Inductance (L)
Reactance (X)
Susceptance (B)
Impedance (Z)
Admittance (Y)
DC Resistance(RDC)
Quality factor (Q)
Dissipation factor (D)
AC Resistance (RAC)
Conductance (G)
Angle (θ)
*Prog: Multi-step program
• The graph measurement is described in graph mode chapter,
page
75.
• The multi-step program mode is described in the Pass/Fail test
chapter, page
61.
AC G Angle Series
Parallel
Series/Parallel circuit models
Background
Capacitance (C) Series diagram
Series formula
When to use Series (C
Inductance (L) Series diagram
For measuring AC Resistance, Capacitance,
Reactance, Inductance, and Susceptance, series and
parallel equivalent circuit models are available.
Select the model according to the component value.
Parallel diagram
Parallel formula
2
1DCC
+=
PS
D=dissipation factor
S)
Small capacitance:
Reactance (X) < 1kΩ
Example: 1μF @ 1kHz =
100Ω (X) → Series
C
D=dissipation factor
When to use Parallel (CP)
Large capacitance:
Reactance (X) > 1kΩ
Example: 100mF @ 1kHz
= 100kΩ (X) → Parallel
Parallel diagram
C
S
=
P
2
()
1D
+
31
32
BASIC MEASUREMENT
(
)
G
C
ϖ
(
R
ϖ
(
LCR-8101 User Manual
Series formula
L
P
L
=
S
⎛
⎜
1
+
⎜
⎝
Q=quality factor
When to use Series (L
Small capacitance:
Reactance (X) < 1kΩ
Example: 1μH @ 1kHz =
100Ω (X) → Series
Resistance Series diagram
Series formula
R
Q=quality factor
R
=
S
()
1 Q
+
⎞
1
⎟
2
⎟
Q
⎠
P
2
Parallel formula
Q=quality factor
When to use Parallel (L
S)
Large capacitance:
Reactance (X) > 1kΩ
Example: 100mH @ 1kHz
= 100kΩ (X) → Parallel
Parallel diagram
Parallel formula
Q=quality factor
LL
⎛
⎜
SP
⎜
⎝
SP
+=
1
1 QRR
+=
Q
Resistance (R) and Conductance (G = 1/R)
⎞
1
⎟
2
⎟
⎠
P)
2
Background
Resistance Conductance
Type
Range
Measurement
combination
Formula
Resistance measures how difficult it is for the
electricity to flow between two terminals.
Conductance is the reciprocal of Resistance and
measures how easily the electricity flows.
• Series Resistance R
• Parallel Resistance R
• DC Resistance R
0.01mΩ ~ 1GΩ 0.001nS ~ 1GS
• C
• L
• X
• C
R
+ RS
S
+ RS
S
+ RS
S
+ RP
P
I
• L
• B
• R
1
V
+ RP
P
+ RP
P
dc
−===
S
• Parallel Conductance
S
G
(= 1/RP)
P
dc
jXZ
P
Note: Conductance is
available only for
parallel circuit model.
• C
+ GP
P
• L
+ GP
P
G
I
• B
1
V
+ GP
P
PP
jBY
−===
When to use Series (R
Small resistance: < 1kΩ
S)
When to use Parallel (RP)
Large resistance: > 1kΩ
33
34
ϖ
ZLjZ
XRZ
S
=
Z
P
+=
RX
()
XR
+
θ
cosZRS=
j
+=−=
SS
22
)
22
Y
ϖ
YCjY
GB
=
S
()
BG
+
BGY
P
+=
θ
cosYGP=
+=−=
PP
22
22
)
j
L
BASIC MEASUREMENT
C
ϖ
ϖ
=
ϖ
+
=
ϖ
=
ϖ
+
=
ϖ
ϖ
ϖ
=
LCR-8101 User Manual
Capacitance (C)
Background
Range
Type
Combination
Formula
Capacitance measures the amount of electronic
charge stored between two terminals.
0.001pF ~ 1F
• Series Capacitance C
• C
+ Q
S
• C
+ D
S
• C
+ RS
S
j
−=
RZ
S
1
=
Q
ϖ
RC
SS
RCD
SS
• Parallel Capacitance C
S
• C
+ Q
P
• C
+ D
P
• C
+ RP
P
• C
+ GP
P
CjGY
P
D
RCQ
=
PP
G
ϖ
C
Inductance (L)
Background
Inductance measures the amount of magnetic flux
generated in certain electrical current.
Range
P
Type
Measurement
combination
Formula
P
P
0.1nH ~ 100kH
• Series Inductance L
• L
+ Q
S
• L
+ D
S
• L
+ RS
S
LjRZ
=
D
R
S
L
ϖ
S
S
=,
Q
L
S
R
S
• Parallel Inductance LP
S
• L
+ Q
P
• L
+ D
P
• L
+ RP
P
• L
+ GP
P
j
GY
−=
Q
P
=
ϖ
L
R
P
,
L
P
GLD
PP
35
36
BASIC MEASUREMENT
B
X
(
Y
I
+
=
C
ϖ
(
Z
E
+
=
ϖ
(
LCR-8101 User Manual
Reactance (X) and Susceptance (B = 1/X)
Background
Type
Range
Measurement
combination
Formula
Reactance measures the imaginary part of
Impedance (Z) caused by capacitors or inductors.
Susceptance is the reciprocal of Reactance and
measures the imaginary part of Admittance (Y),
which is also the reciprocal of Impedance.
Series Reactance (X
Note: Reactance is
available only in series
circuit model.
0.01mΩ ~ 1GΩ 0.001nS ~ 1GS
• X
+ Q
S
• X
+ D
S
• X
+ RS
S
1
X==
S
=
Z
P
sin
Z
()
+=
RX
()
)
Parallel Susceptance (BP)
S
Note: Susceptance is
available only in parallel
circuit model.
• B
• B
• B
• B
θ
22
XRZ
22
XR
+
B==
Y
+ Q
P
+ D
P
+ RP
P
+ GP
P
1
=
S
()
P
sin
Y
GB
+
+=
θ
22
BG
22
)
BGY
Impedance (Z) and Admittance (Y = 1/Z)
Background
Type
Range
Formula
Impedance measures the total amount of
opposition between two terminals in an AC circuit.
Admittance is the reciprocal of Impedance and
measures how easily the electricity flows in an AC
circuit.
Impedance (Z) Admittance (Y)
0.01mΩ ~ 1GΩ 0.001nS ~ 1GS
EZ1
==
S
S
Z
=
P
=
S
=
S
jXRZ
RLjR
ϖ
−=+=
22
XRZ
+=
)
RX
()
cosZR
sinZX
22
XR
+
θ
θ
Y
P
j
Y
I
1
==
jBGY
GCjG
j
−=+=
ϖ
L
GB
=
S
()
P
cosYG
=
P
θ
sinYB
=
P
22
BG
+
22
)
BGY
+=
θ
sinZX
=
S
θ
=
P
θ
sinYB
37
38
BASIC MEASUREMENT
ϖ
+
=
ϖ
+
=
ϖ
LCR-8101 User Manual
Quality factor (Q) and Dissipation factor (D)
Background
Type
Range
Formula
Both Quality factor and its reciprocal, Dissipation
factor, are used for measuring the rate of energy
dissipation relative to the measurement frequency.
• Low energy dissipation: high Q, low D
• High energy dissipation: low Q, high D
Quality factor (Q) Dissipation factor (D)
0.01mΩ ~ 1GΩ 0.001nS ~ 1GS
L
Q
=
S
R
P
==
ϖ
L
P
1
()
90tan
1
==
ϖ
−
RCR
ϖ
RC
PP
=
°
θ
D
D
SSS
ϖ
G
ϖ
C
1
R
S
L
S
P
ϖ
==
P
()
90tan
RC
ϖ
==
GL
PP
1
°
=−=
θ
SS
Q
Angle (θ)
Background
Type
Range
Formula
The Angle (θ) measures the phase on which
Impedance (Z), Admittance (Y), Quality factor (Q),
and Dissipation factor (D) are measured.
Angle (θ)
–180° ~ +180°
jXRZ
ϖ
RLjR
−=+=
P
j
S
ϖ
jBGY
GCjG
−=+=
C
Q
=
=
S
=
S
1
()
90tan
θ
−
θ
cosZR
θ
sinZX
1
D
D
=
°
()
90tan
cosYGP=
sinYBP=
°
=−=
θ
θ
θ
Q
j
L
1
39
40
BASIC MEASUREMENT
LCR-8101 User Manual
Measurement Mode Overview
Enter measurement mode
Type A C
DC
Panel operation
1. Press the Menu key. The main menu
appears.
2. For Rdc measurement, press F2
(Rdc Meas).
For any other measurement, press
F1 (AC Meas). The measurement
mode display appears.
AC measurement
MEASUREMENT MODE
*7
C LXBZY
0.01234
0.2179nSD
–
LO
Hide Scale
Auto
HiLo+1.00%
–1.00%
Vm:549.8mV
Im:724.9pA
53.388fF
50mVac1.5000kHz
Range
Speed Med
C, L, X, B, Z, Y, Q, D, R, G, θ
Rdc
MAIN MENU
DC measurement (Rdc)
Q DRG
Parallel
Abs
%
Save Nom
AC MEAS
Rdc MEAS
MULTI STEP
GRAPH
SYSTEM
Menu
F1
F2
F3
F4
F5
F1
F2
Display overview
Normal mode
Measurement Range
*7
MEASUREMENT MODE
1st Measurement
nd
Measurement
2
–
Equivalent Circuit
Block Diagram
Measurement
Voltage
Measurement
Range
Measurement Speed
5mVac1.5000kHz
Range
Speed Med
Measurement
Frequency
Absolute mode (Pass/Fail test)
Lo Threshold
*7
5mVac1.5000kHz
Range
Speed Med
Hi Threshold
MEASUREMENT MODE
0.01234
0.2179mFD
–
LO
HiLo20.0mF0.00mF
Auto
Vm:549.8mV
Im:724.9pA
Absolute
Mode
C LXBZY
Q DRG
Parallel
Hide Scale
Abs %
Save Nom
For Pass/Fail test details, see page52.
st
1
Measurement 2
C LXBZY
0.01234
0.2179
mF
D
Parallel
Show Scale
Auto
Vm:549.8mV
Im:724.9pA
Drive Voltage/
Current
Percentage mode (Pass/Fail test)
Norm
Value
*7
Hi/Lo
Threshold
MEASUREMENT MODE
0.01234
–
0.2179nSD
LO
Auto
HiLo+1.00%
–1.00%
Vm:549.8mV
Im:724.9pA
53.388fF
5mVac1.5000kHz
Range
Speed Med
nd
Measurement
Q DRG
Equivalent
Circuit model
Percentage
Mode
C LXBZY
Q DRG
Parallel
Hide Scale
Abs
Save Nom
F1
F2
F3
F4
F5
F6
%
41
42
BASIC MEASUREMENT
LCR-8101 User Manual
Show circuit model or scale (pass/fail)
Background
Panel operation
Normal
Pass/Fail test
The center of the display can be filled with the
diagram of equivalent circuit model, or the
measurement scale with Pass/Fail test result. This
selects not only the diagram/scale but also
whether running the Pass/Fail test or just
measuring the value.
Press F3 (Show/Hide scale) to select
circuit model or scale.
MEASUREMENT MODE
*7
0.01234
0.2179mFD
–
50mVac1.5000kHz
Range
Auto
Speed Med
Vm:549.8mV
Im:724.9pA
C LXBZY
Q DRG
Parallel
Show Scale
For Pass/Fail test details, see page
Pass/Fail test
MEASUREMENT MODE
*7
0.01234
0.2179mFD
–
HI
HiLo20.0mF0.00mF
50mVac1.5000kHz
Range
Auto
Speed Med
52.
F3
Vm:549.8mV
Im:724.9pA
C LXBZY
Q DRG
Parallel
Hide Scale
Abs %
Save Nom
Parameter Configuration
Select measurement item
*This is not necessary for Rdc measurement.
Measurement
combination
Capacitance (C) Series C-Q, C-D, C-R
Parallel C-Q, C-D, C-R, C-G
Inductance (L) Series L-Q, L-D, L-R
Parallel L-Q, L-D, L-R, L-G
Reactance (X) Series X-Q, X-D, X-R
Susceptance (B) Parallel B-Q, B-D, B-R, B-G
Impedance (Z) Z-Angle
Admittance (Y) Y-Angle
Panel operation
The following list shows the available combination
of the first and second measurement items.
To select the first measurement
item, press F1 repeatedly.
C LXBZY
To select the second measurement
item, press F2 repeatedly.
Q DRG
To select the circuit model, series or
parallel, press F3 repeatedly.
F1
F2
F3
Series
Parallel
43
44
BASIC MEASUREMENT
LCR-8101 User Manual
Set measurement range to Auto
Background
The measurement range is an internal parameter
defining the search range for each measurement
item. Make sure the Auto setting is always
selected, to obtain the best measurement accuracy.
The active range appears at the top left corner of
the display.
*7
MEASUREMENT MODE
0.01234
–
Panel operation
1. Press the Left/Right key
repeatedly to move the cursor to
Range position.
Range Auto
Speed Slow
2. If the range is NOT set to Auto,
press the Up/Down key
repeatedly to set it back to Auto.
Range 5
Speed Slow
0.2179
Range Auto
Speed Slow
nS
D
Set measurement frequency
*This setting does not apply to Rdc measurement.
Background
Panel operation
The measurement frequency, together with the
measurement voltage, defines the electrical
condition of each measurement item. Make sure
the appropriate frequency is selected, according to
the component characteristics.
1. Press the Left/Right key repeatedly
to move the cursor to Frequency.
2.00195.00 kHzVac
Range
1.2kHz
1MHz
Backspace
Increase
2. Enter the frequency using the numerical keys.
20Hz ~ 1MHz
M
Enter
All clear
Decrease
When the entered value does not fit in the
range, LCR-8101 automatically selects the
nearest value.
k
Enter
Clear
45
46
Nearest Available
When the wrong unit (such as Ω) is entered,
the value is cancelled.
Unit Mismatched
BASIC MEASUREMENT
LCR-8101 User Manual
Select frequency
step resolution
For frequency increase/decrease using Up/Down
keys, fine and coarse step settings are available.
Fine 1st digit: 1, 2, 3, 4, 5, 6...
nd
Coarse 2
1. Press the Code key.
2. Enter the system code using the numerical
digit: 10, 12, 15, 20, 25, 30, 40, 50, 60, 80
keys, then press the Enter key. A confirmation
message appears on the display.
Fine: 10
Freq fine steps
Coarse: 11
Freq coarse steps
Enter
Enter
Set measurement voltage
Background
Code
Frequency setting
Range
100mV
1V
Backspace
Increase
The measurement voltage, together with the
measurement frequency, defines the electrical
condition of each measurement item. Make sure
the appropriate voltage is selected, according to
the component characteristics.
1. Press the Left/Right key repeatedly
to move the cursor to Voltage.
195.002.00 VackHz
2. Enter the voltage using the numerical keys.
10mV ~ 2V
V/A
m
Enter
All clear
V/A
Clear
Enter
Decrease
When the entered value does not fit in the
range, LCR-8101 automatically selects the
nearest value.
Nearest Available
When the wrong unit (such as Ω) is entered,
the value is cancelled.
47
48
Unit Mismatched
BASIC MEASUREMENT
LCR-8101 User Manual
Running Measurement
Select Single measurement
Background
Panel operation
The data capture can be manually controlled
(Single) or automatically updated (Repetitive).
In single measurement, the measurement is
activated by pressing the Trigger key.
In repetitive measurement, the measurement is
automatically done and the display is updated
according to the speed (timing) setting.
1. Press the Sing/Rep key repeatedly
until the “Single Shot Mode”
message appears on the display.
Single Shot Mode
2. The measurement update indicator (*) does not
appears at the top left corner of the display.
MEASUREMENT MODE
7
3. To capture measurement data, press
the Trigger key. The measurement
update indicator (*) blinks and the
measurement result is updated on
the display.
*7
MEASUREMENT MODE
0.01234
–
nS
D
0.2179nSD
Select Repetitive measurement
Sing/Rep
Background
Panel operation
The data capture can be manually controlled
(Single) or automatically updated (Repetitive).
In single measurement, the measurement is
activated by pressing the Trigger key.
In repetitive measurement, the measurement is
automatically done and the display is updated
according to the speed (timing) setting.
1. Press the Sing/Rep key repeatedly
until the “Repetitive Mode”
message appears on the display.
Repetitive Mode
2. The measurement update indicator (*) keeps
blinking and the measurement result is
updated on the display.
*7
MEASUREMENT MODE
Sing/Rep
0.01234
0.2179nSD
–
Trig
Slow
Med
3. Press the Left/Right key repeatedly
to move the cursor to measurement
speed.
Speed Slow
4. Press the Up/Down key repeatedly
to select the time per update.
500mS
450mS (AC), 120mS (Rdc)
49
50
BASIC MEASUREMENT
LCR-8101 User Manual
Fast
Max
Beep setting
If the beep setting (page
and the display is in Pass/Fail test
mode, it might sound continuously
depending on the measurement result.
If this happens, press the Sing/Rep key
and set the mode to Single. Then turn
Off the buzzer.
150mS (AC), 50mS (Rdc)
75mS (AC), 30mS (Rdc)
Hide drive Voltage/Current
Background
Panel operation
Hide drive V/I: 80
Show drive V/I: 81
The drive voltage and current shows
the actual voltage/current level
applied to the device under test.
1. Press the Code key.
2. Enter the system code using the numerical
keys, then press the Enter key.
Vm:549.8mV
Im:724.9pA
54) is active
Vm:549.8mV
Im:724.9pA
Sing/Rep
Vm:549.8mV
Im:724.9pA
Code
Enter
Enter
PASS-FAIL MODE
In the Pass/Fail test mode, measurement results
are compared with user-defined limits and the
results are displayed. Two types of tests are
available: Single and Multi-Step. The Single test
shares the same interface with the basic
measurement, and tracks one item. The Multi-Step
Single-step
configuration
Single-step run Run in Absolute mode ....................................
Multi-step
configuration
test runs a program comprised of multiple
measurement items with different parameters.
Pass/Fail test checks whether the measurement
result sits between hi and low limit. Two methods
are available: absolute limit and percentage limit.
The Hi and Low limit are defined by
limit
absolute values.
Low
Limit
Pass
The Hi and Low limit are defined by
limit
the distance (percentage) from the
Nominal value.
Nominal
C
S
Series capacitance
P
C
Parallel capacitance
– ##%
Nominal
X
B
Pass
Reactance
Susceptance
Hi
Limit
Nominal
+ ##%
Configure beep setting
Panel operation
Background
The beep sounds when the pass/fail test result
matches the setting: failed or passed.
1. Press the Menu key, then F5
(System). The system configuration
appears.
Precision LCR Meter LCR-8101
Software version 2.00 Jan 20 2007
Frequency
RS-232
Graph mode
GPIB
Line frequency
Beep
GPIB address
1MHz
50Hz
:
::OFF
5
Menu
F5
2. Press the Up/Down key and move
the cursor to Beep.
Beep: OFF
L
L
S
Series inductance
P
Parallel inductance
Z
Impedance
Y
Admittance
3. Press the Left/Right key to select the
beep setting, Off, Pass, or Fail.
R
R
S
Series resistance
P
Parallel resistance
For detailed description of each item, see page
RDC
DC Resistance
θ
Angle
31.
Off
Pass
Fail
Beep in repetitive
mode
If the repetitive measurement is On, the beep
might sound continuously. If this becomes a
Beep is turned Off
Beeps when the test result is pass
Beeps when the test result is fail
problem, either use the Single mode (press
Sing/Rep key) or turn Off the beep.
53
54
PASS-FAIL MODE
LCR-8101 User Manual
Select test item and scale (Pass/Fail test)
Test i t e m
Circuit model
Scale
Normal
Normal mode
To select the first measurement item,
press F1 repeatedly.
C LXBZY
To select the second measurement item,
press F2 repeatedly.
Q DRG
To select the circuit model, series or
parallel, press F3 repeatedly.
Press F4 (Show/Hide scale) to select
scale (Pass/Fail test).
Pass/Fail test
MEASUREMENT MODE
*7
0.01234
0.2179mFD
–
50mVac1.5000kHz
Range
Auto
Speed Med
Vm:549.8mV
Im:724.9pA
C LXBZY
Parallel
Show Scale
Q DRG
*7
50mVac1.5000kHz
Range
Speed Med
For Normal (basic) mode details, see page
MEASUREMENT MODE
0.01234
0.2179mFD
–
HI
HiLo20.0mF0.00mF
Vm:549.8mV
Auto
Im:724.9pA
F1
F2
F3
F4
C LXBZY
Parallel
Hide Scale
Save Nom
30.
Q DRG
Abs %
Set parameters
For more detailed descriptions, see Basic measurement, page41.
How to edit Example
m
V/A
100mV
Backspace
All clear
Clear
Increase
Decrease
When the entered value does not fit in the
range, the nearest available value is selected.
Nearest Available
When the wrong unit (such as Ω) is entered,
the value is cancelled.
Measurement
range (to Auto)
Press the Left/Right key repeatedly to
move the cursor to Range position, and
Unit Mismatched
use the Up/Down key to select Auto (if
necessary).
Range Auto
Speed Slow
Enter
Single mode
Press the Sing/Rep key repeatedly to
select Single (manual trigger). To trigger
measurement, press the Trigger key.
Sing/Rep
Trig
Repetitive mode
Press the Sing/Rep key repeatedly to
select Rep (automatic trigger). Press the
Sing/Rep
Left/Right key repeatedly to move the
cursor to Speed, and use the Up/Down
key to select the update rate.
55
56
PASS-FAIL MODE
LCR-8101 User Manual
Frequency (except
Rdc)
Frequency step
resolution
Vol tag e
Press the Left/Right key repeatedly to
move the cursor to Frequency, and use
the numerical and unit keys to enter the
value.
2.00195.00 kHzVac
For frequency increase/decrease using Up/Down
keys, fine and coarse step settings are available.
Press the Code key and enter 10 (Fine)
or 11 (Coarse).
Code
Press the Left/Right key repeatedly to
move the cursor to Voltage, and use the
numerical and unit keys to enter the
value.
195.002.00 VackHz
Single-Step Test Run
Run in Absolute mode
Example
Backspace
Increase
1. Press F5 to select Absolute
measurement.
2. Use the Left/Right key to move the
cursor to Hi/Lo value for editing.
HiLo20.0mF0.00mF
3. Use the numerical keys
and unit keys to enter the
value. The editing value
Range
Speed Med
Lo Lim: 1.5_
appears at the bottom left
corner of the display.
m
1.2mΩ
All clear
Decrease
F5
Abs %
Auto
Ω
Clear
Enter
57
Hi and Lo values are automatically swapped if
necessary
Hi and Lo Swapped
4. The display updates the Hi/Lo result
immediately. The result is pass if the bar stays
in the central area. The buzzer sounds
accordingly.
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PASS-FAIL MODE
LCR-8101 User Manual
Result > Hi
Result < Lo
Lo < Result < Hi
(Pass)
Run in Percentage mode
–2.50%
1.5kH
Backspace
Increase
1. Press F5 to select Percentage
measurement.
2. Use the Left/Right key to move the
cursor to Hi/Lo value for editing.
Hi
100.00mD
Lo
+1.00%
–1.00%
3. Use the numerical keys
and unit keys to enter the
value. The editing value
appears at the bottom left
corner of the display.
All clear
Decrease
HI
LO
PASS
F5
Abs %
Range
Speed Med
Lo Lim: 1.5_
k
Enter
H
Clear
Auto
Enter
Hi and Lo values are automatically swapped if
necessary
Hi and Lo Swapped
4. The display updates the Hi/Lo result
immediately. The result is pass if the bar stays
in the central area. The buzzer sounds
accordingly.
Result > Hi
Result < Lo
HI
LO
Lo < Result < Hi
PASS
(Pass)
Use display value as nominal
Panel operation
(For Percentage only) The displayed
value can be used as the nominal value.
Press F6 (Save Nom) to copy the
display value to the nominal value.
1.2345
0.2179mFD
–
100.00mF
LO
Hi
Lo
+1.00%
–1.00%
1.2345
0.2179mFD
–
1.2345mF
PASS
Hi
Lo
F6
+1.00%
–1.00%
59
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PASS-FAIL MODE
LCR-8101 User Manual
Multi-Step Test Configuration
Overview
Background
Limit type
Test i t e m
L
L
R
R
Parameters No. of step
The multi-step function can configure and run
multiple measurement steps. Maximum 64
programs, 30 steps each, can be programmed and
stored in the instrument.
Only the absolute limit
testing is available. For
percentage limit test, use
the single mode (page
CS
Series capacitance
P
C
Parallel capacitance
S
Series inductance
P
Parallel inductance
S
Series resistance
P
Parallel resistance
53).
X
B
Z
Y
RDC
θ
For detailed description of each item, see page
Maximum 30 for each program
No. of program
Drive Voltage
Frequency
Bias
Speed
Hi / Lo Limit
Delay
Single trigger
Maximum 64
10mV ~ 2V, 1mV step
20Hz ~ 1MHz
Reserved item: internal use only
Max, Fast, Med, Slow
Follows the measurement range
0 ~ 9999ms, 1ms step
Program runs when the Trigger
key or F1 (Start) is pressed.
Automatic
trigger
Program runs when LCR-8101
detects the DUT.
Low
Limit
Pass
Reactance
Susceptance
Impedance
Admittance
DC Resistance
Angle
Hi
Limit
31.
Configure beep setting
Background
Panel operation
Off
Pass
Fail
The beep sounds when the pass/fail test result
matches the setting: failed or passed.
1. Press the Menu key, then F5
(System). The system configuration
appears.
Precision LCR Meter LCR-8101
Software version 2.00 Jan 20 2007
Frequency
RS-232
Graph mode
GPIB
Line frequency
Beep
GPIB address
1MHz
50Hz
:
::OFF
5
Menu
F5
2. Press the Up/Down key and move
the cursor to Beep.
Beep: OFF
3. Press the Left/Right key to select the
beep setting, Off, Pass, or Fail.
Beep is turned Off
Beeps when the test result is pass
Beeps when the test result is fail
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PASS-FAIL MODE
LCR-8101 User Manual
Enter multi-step mode
Panel operation
Press the Menu key, then F3 (Multi
Step). The multi-step mode menu
appears. The last recalled program
appears on the display.
Create new program
Panel operation
1. In the multi-step mode, press F5
(File), then F4 (New). The new
program name dialogue opens.
MULTI STEP MODE
PROGRAM: NONAME
Step
FuncFreqVoltBiasSpdHiLo
Dly
010203
New program name: New_
0123456789-_
ABCDEFGHIJKLMNOPQRSTUVWXYZ
abcdefghijklmnopqrstuvwxyz
Edit by ↑↓←→ key
Enter- Confirm, Clear- Quit
BRdcOFF
1.0000k10mV
MAXFAST
1.0000 S
500.00mS
9999 ms0 mS
1.00 V
0.0000Ω
0.0000Ω
2. Enter the new program name using the arrow
keys.
Move cursor
Menu
F3
(Left/Right keys)
Enter the letter
(Down key)
JKLMNOPQRS
program name: N_
Delete one letter
(Up key)
program name: _
3. Press the Enter key to confirm the
file name. To quit the new program
mode, press the Clear key.
Enter
Clear
F5
F4
Set–
LOAD
DELETE
Save as
F1
F2
F3
F4
New
4. A blank program with the entered name
appears.
MULTI STEP MODE
PROGRAM: New
Step
Func
Freq
Volt
Bias
Spd
Hi
Lo
Dly
010203
OFFOFFOFF
Set–
Prog
Copy
Delete
Save
File
RUN
5. Press F1 (Prog). Step 01 becomes
active and changes to Ls
F1
F1
F2
F3
F4
F5
F6
measurement mode. For further
editing details, see the next page.
QUIT
F6
Step
Func
01
OFF
Step
Func
01
Ls
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LCR-8101 User Manual
Edit program step
How to edit
parameter
Example:
Backspace
Increase
How to move
cursor
Panel operation
1. Create new
step
2. Select item
(function)
• For selecting parameters, press F1
(Prog) repeatedly.
• For entering values, use the numerical and unit
keys.
0.5kHz
All clear
Decrease
To move the cursor to the editing point,
use the arrow keys: up, down, left, and
right.
Note: The cursor cannot move into
blank columns or steps.
To create a new step in a program,
press F1 (Prog) at Func column “OFF”.
The step becomes active and the
function changes to Ls. Up to 30 steps
are available in a program.
Step
Func
01
OFF
Step
Func
Move the cursor to Func column, press
F1 (Prog) repeatedly. The measurement
item (function) changes in the following
order.
Ls → Lp → Q → Cs → Cp → D → Z → θ → Rs → Rp
→ X → G → B → Y → Rdc → Ls
Set frequency
F1
Range
Example:
Set voltage
k
Enter
Clear
Range
Move the cursor to Freq column.
Enter the frequency using the
numerical keys and unit keys.
20Hz ~ 1MHz, 5 digit resolution
0.5kHz (500Hz)
k
Move the cursor to Volt column.
Enter the voltage using the
numerical keys and unit keys.
10mV ~ 2V, 1mV resolution
Func
Freq
Volt
Enter
Freq
Volt
Bias
Ls
500.00
2.00 V
500.00
2.00 V
Example:
100mV
m
V/A
Enter
Select data
capture rate
Move the cursor to Spd column.
Select the capture rate by
pressing F1 (Prog) repeatedly.
Bias
Spd
Hi
MAX
1.0000H
F1
01
Ls
Slow
F1
Med
Fast
Max
Set Hi limit
Move the cursor to Hi column.
Enter the Hi limit using the
F1
Range
numerical keys and unit keys.
500mS
450mS (AC), 120mS (Rdc)
150mS (AC), 50mS (Rdc)
75mS (AC), 30mS (Rdc)
follows the specification for each
measurement item
Spd
Hi
Lo
MAX
1.0000H
0.0000H
Example: 1.5kH
(for Ls)
k
Enter
H
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PASS-FAIL MODE
LCR-8101 User Manual
Set Lo limit
Move the cursor to Lo column.
Enter the Lo limit using the
numerical keys and unit keys.
Range
follows the specification for each
measurement item
Example: 1.0kH
(for Ls)
Set trigger delay
Move the cursor to Dly (Delay)
column. Enter the amount of
trigger delay time using the
numerical keys and unit keys.
Range
Example: 10ms
0 (no delay) ~ 1000ms
m
Spd
Hi
Lo
MAX
1.0000H
0.0000H
Copy (duplicate) program step
Background
Copying the step inserts a new, identical step next
to the current step (= the step where the cursor
resides).
k
Hi
Lo
Dly
Enter
H
1.0000H
0.0000H
10 ms
Panel operation
Press F2 (Copy). A new step with
identical contents appears on the right
side.
Before (step 3 empty)
After (step 2 copied to 3)
010203
Step
Func
1.0000k
Freq
10mV
Volt
Bias
MAXFAST
Spd
1.0000 S
Hi
Lo
500.00mS
9999 ms 0 mS
Dly
RdcB
1.00 V
0.0000Ω
0.0000Ω
F2
1.00 V
0.0000Ω
0.0000Ω
Rdc
FAST
0 mS
Delete program step
Background
Deleting the step deleted the currently selected
step (= where the cursor resides). The other step
numbers are decreased by 1 (shifted to the left in
the table).
Panel operation
Press F3 (Delete). The current step is
deleted, and the whole table shifts to
F3
the left.
67
68
Before (step 2 deleted)
After (step 3 becomes 2)
010203
Step
Func
1.0000k
Freq
Volt
Bias
Spd
1.0000 S
Hi
Lo
500.00mS
9999 ms 0 mS
Dly
10mV
MAXFAST
RdcB
1.00 V
0.0000Ω
0.0000Ω
OFF
PASS-FAIL MODE
LCR-8101 User Manual
Multi-Step Program Run
Run program
Panel operation
Manual
Auto
1. When editing is completed, press F6
(Run) to run the multi-step program.
The display changes to program
running mode.
MULTI STEP MODE
PROGRAM: Demo
2. Press the Sing/Rep key to select
Single (manual trigger) or Repetitive
(automatic trigger).
Manual trigger
trigger
Starts running the program
when the Trigger key or F1
(Start) is pressed.
Auto trigger
trigger
Starts running the program when
LCR-8101 detects the DUT is
connected to the fixture (scans the
fixture continuously). Manual
triggering is also available.
3. Press F1 (Start) or the Trigger key to
manually start the program. The test
results show up according to the
program contents.
F6
Run–
Start
F1
MULTI STEP MODE
PROGRAM: Demo
Freq
1
1.2000k
2
10.000k
3
100.00k
4
DC
Volt
1.00
1.00
1.00
1.00
Ls
Q
Ls
Rdc
Run–
Result
9.8936mH
22.708 Q
10.852mH
25.555 Ω
Trig
F1
Start
LO
PASS
HI
PASS
SET
The rightmost row shows the result for each
step.
SET
Sing/Rep
F6
Failed: below the Lo limit
Failed: above the Hi limit
Passed
Trig
F1
The left bottom corner shows the result for the
whole program.
PASS
FAIL
All steps passed
One or more steps failed
4. To return to the program setting
menu, press F6 (Set).
F6
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LCR-8101 User Manual
Multi-Step Program File Operation
Save program
Save (overwrite)
Save as (new
program)
Press F4 (Save) to save the program
being edited. A confirmation message
appears on the display.
Program saved
1. Press F5 (File), then F3 (Save As).
The new program name dialogue
appears.
F4
F5
F3
3. Press the Enter key to confirm the
Enter
file name. To quit the Save as mode,
press the Clear key.
Clear
4. The display goes back to the previous mode,
with the program changed to the new name.
MULTI STEP MODE
PROGRAM: NEW
Step
Func
Freq
Volt
Bias
Spd
Hi
Lo
Dly
010203
1.0000k
10mV
MAXFAST
1.0000 S
500.00mS
9999 ms0 mS
Set–
BRdcOFF
1.00 V
0.0000Ω
0.0000Ω
Prog
Copy
Delete
Save
File
RUN
2. Enter the new program name using the arrow
keys.
Move cursor
(Left/Right keys)
JKLMNOPQRS
Enter the letter
program name: N_
(Down key)
Delete one letter
(Up key)
program name: _
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LCR-8101 User Manual
Recall (load) existing program
Panel operation
1. Press F5 (File). The file menu
appears.
2. Press F1 (Load). The existing
programs appear, listed in
alphabetical order.
3. Use the arrow key to move the
cursor to the program to be recalled
(loaded).
4. Press F1 (Load) to recall the selected
program on the display.
5. To cancel loading and go back to the
previous menu, press F6 (Quit).
F5
F1
F1
F6
Delete existing program
Recall program
1. Press F5 (File), then F2 (Delete). The
existing programs appear, listed in
F5
alphabetical order.
2. Use the arrow key to move the
cursor to the program to be deleted.
3. Press F5 (Del). The buzzer beeps and
a warning sign appear. Press the
Enter key (confirm) or the Clear key
F5
Enter
(cancel).
Note: the currently active program cannot be
DELETE FILE
Delete New ?
Enter-Yes Clear-Quit
Clear
deleted. An error message appears.
73
74
program being used!
4. To go back to the previous menu
without deleting any program, press
F6 (Quit).
F6
GRAPH MODE
GRAPH MODE
LCR-8101 User Manual
Item Selection
Enter graph mode
The graph function shows the component
characteristics in visual manner. Voltage and
Frequency sweep are selectable for the horizontal
scale. When the graph gets out of the vertical
range, LCR-8101 can automatically adjust the scale.
Marker operation is available for detailed
observation.
Graph item Enter graph mode ...........................................76
Observe Graph Data .......................................
77
80
84
86
87
89
92
93
Panel operation
1. Press the Menu key. The main menu
appears.
MAIN MENU
AC MEAS
Rdc MEAS
MULTI STEP
GRAPH
SYSTEM
2. Press F4 (Graph). The Graph mode
display appears.
Menu
F4
F1
F2
F3
F4
F5
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GRAPH MODE
LCR-8101 User Manual
Select measurement item
Range Ls
Lp
Q
Cs
Cp
D
Z
Panel operation
Series inductance
Parallel inductance
Quality factor
Series capacitance
Parallel capacitance
Dissipation factor
Impedance
For detailed description of each item, see page
Press F5 repeatedly to select the graph
measurement item.
θ
Angle
Rs
Series resistance
Rp
Parallel resistance
X
Reactance
G
Conductance
B
Susceptance
Y
Admittance
F5
31.
Horizontal Scale Setting
Set horizontal axis (Voltage)
Background
Select Drive level
(Voltage)
Set start Voltage
The X (horizontal) axis is selectable from Voltage
and Frequency sweep.
• When Voltage sweep is selected: measurement
Frequency is fixed
• When Frequency sweep is selected:
measurement Voltage is fixed
1. Press the Up/Down key and move
the cursor to Sweep.
Sweep: Frequency
2. If necessary, press the Left/Right
key to change the sweep setting to
Voltage (Drive Level).
FrequencyDrive Level
3. Press the Up/Down key and move
the cursor to Start.
Start:: 50mV
Use the numerical keys to enter the
starting Voltage.
Range
100mV
1V
Backspace
Increase
77
78
50mV ~ 2V, 1mV resolution
m
V/A
Enter
All clear
Decrease
V/A
Clear
Enter
GRAPH MODE
LCR-8101 User Manual
If a wrong unit is entered, the value is cancelled.
Unit Mismatched
If a value outside of the range is entered, the
closest available value is automatically selected.
Nearest Available
If the entered start Voltage level is higher than
the stop Voltage, the two values are swapped.
Set stop Voltage
Range
Hi and Lo Swapped
4. Repeat the above step for the stop Voltage.
Stop:1.00 V
50mV ~ 2V, 1mV resolution (stop
Voltage must be higher than the start
Voltage)
Set measurement
Frequency
5. Use the Up/Down key to move the
cursor to Frequency setting (Freq).
Freq : 10.000kHz
Use the numerical keys to enter the
measurement frequency.
Range
50Hz
1MHz
Backspace
20Hz ~ 1MHz
M
Enter
Enter
All clear
Increase
Decrease
Select Lin/Log
scale
6. Press F1 to select the horizontal
scale, Linear or Logarithmic.
Log(V)Lin(V)
Background
The X (horizontal) axis is selectable from Voltage
and Frequency sweep.
• When Voltage sweep is selected: measurement
Frequency is fixed
• When Frequency sweep is selected:
measurement Voltage is fixed
Select Frequency
1. Press the Up/Down key and move
the cursor to Sweep.
Sweep: Drive Level
2. If necessary, press the Left/Right
key to change the sweep setting to
Voltage (Drive Level).
Set start
Frequency
Drive LevelFrequency
3. Press the Up/Down key and move
the cursor to Start.
Start:: 20.000Hz
Use the numerical keys to enter the
starting Frequency.
Range
20Hz ~ 1MHz (start Frequency must
be higher than the stop Frequency)
Clear
F1
50Hz
Enter
1.2kHz
Backspace
All clear
Increase
Decrease
k
Enter
Clear
Set horizontal axis (Frequency)
79
80
GRAPH MODE
LCR-8101 User Manual
If a wrong unit is entered, the value is cancelled.
Unit Mismatched
If a value outside of the range is entered, the
closest available value is automatically selected.
Nearest Available
If the entered start Voltage level is higher than
the stop Voltage, the two values are swapped.
Set stop
Frequency
Range
Hi and Lo Swapped
4. Repeat the above step for the stop Frequency.
Stop:1.00 V
20Hz ~ 1MHz (stop Frequency must
be higher than the start Frequency)
Set measurement
Vol tag e
5. Use the Up/Down key to move the
cursor to Voltage setting (Level).
Level: 1.00 V
Use the numerical keys to enter the
measurement Voltage.
Range
10mV ~ 2V
100mV
1V
V/A
Backspace
Enter
All clear
Increase
Decrease
Select Lin/Log
scale
6. Press F1 to select the horizontal
scale, Linear or Logarithmic.
Log(Hz)Lin(Hz)
Vertical Scale Setting
Set vertical axis (Manual + Absolute)
Background
Panel operation
m
V/A
Clear
Enter
Set Hi level
F1
Range
1.5kH
The Y (vertical) axis configuration is available for:
• Manual or Automatic fit: Selects whether the
vertical range is manually set or automatically
adjusted as the graph is plotted.
• Absolute or Percentage: Selects how the vertical
range is defined, as absolute values (minimum
and maximum) or percentage of the nominal
(center) value.
1. Press F2 to select Abs.
Abs %
2. Press F3 to select Manual Fit.
Manual Fit
F2
F3
3. The maximum (Hi) and minimum (Lo) level of
the vertical axis appears.
Step Size:
Cs Hi
Cs Lo::
1
234
5.8240mF
3.5626mF
4. Press the Up/Down key to move the
cursor to Hi level.
Cs Hi: 5.8240mF
5. Use the numerical keys to enter the Hi level.
According to each measurement item
(see page
1.2mΩ
31).
m
k
Ω
H
Enter
Enter
81
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GRAPH MODE
LCR-8101 User Manual
Backspace
All clear
Increase
Decrease
If a wrong unit is entered, the value is cancelled.
Unit Mismatched
If a value outside of the range is entered, the
closest available value is automatically selected.
Nearest Available
If the entered start Voltage level is higher than
the stop Voltage, the two values are swapped.
Set Lo level
Hi and Lo Swapped
6. Press the Up/Down key to move the
cursor to Lo level and repeat the
same step.
Cs Lo: 3.5626mF
Clear
Set vertical axis (Manual + Percentage)
Background
Panel operation
The Y (vertical) axis configuration is available for:
• Manual or Automatic fit: Selects whether the
vertical range is manually set or automatically
adjusted as the graph is plotted.
• Absolute or Percentage: Selects how the vertical
range is defined, as absolute values (minimum
and maximum) or percentage of the nominal
(center) value.
1. Press F2 to select % (Percentage).
Abs %
2. Press F3 to select Manual Fit.
Manual Fit
F2
F3
3. The Hi percentage, Lo percentage, and the
nominal value of the vertical axis appear.
Step Size:
Cs Hi
Cs Lo
:
:
Nominal:
1
248
10.500%
-19.500%
100.00mF
Set Hi level
4. Press the Up/Down key to move the
cursor to Hi percentage.
Cs Hi: 10.500%
Range
5. Use the numerical keys to enter the percentage.
–1.0x10
50%
12
(Tera) ~ 1.0x1012 (Tera) %
Enter
1200%
Backspace
All clear
k
Enter
Clear
83
84
GRAPH MODE
LCR-8101 User Manual
Increase
Decrease
If a wrong unit is entered, the value is cancelled.
Unit Mismatched
If the entered Hi level is lower than the Lo level,
the two values are swapped.
Set Lo level
Hi and Lo Swapped
6. Press the Up/Down key to move the
cursor to Lo percentage and repeat
the same step.
Cs Lo: -19.500%
Range
Set Nominal
7. Press the Up/Down key to move the
–1.0x10
12
(Tera) ~ 1.0x1012 (Tera) %
cursor to Nominal.
Nominal:1.0000mF
8. Use the numerical keys to enter the nominal
value on which the Hi and Lo percentages are
based.
Unit Mismatched
If a value outside of the range is entered, the
closest available value is automatically selected.
Nearest Available
Set vertical axis (Auto + Absolute)
Background
The Y (vertical) axis configuration is available for:
• Manual or Automatic fit: Selects whether the
vertical range is manually set or automatically
adjusted as the graph is plotted.
• Absolute or Percentage: Selects how the vertical
range is defined, as absolute values (minimum
and maximum) or percentage of the nominal
(center) value.
Panel operation
1. Press F2 to select Abs (Absolute).
Abs %
2. Press F3 to select Auto Fit.
Auto Fit
F2
F3
Range
1.2mΩ
According to each measurement item
(see page
31).
m
Ω
Enter
3. Nothing new appears on the display: LCR-8101
automatically configures the vertical scale
according to the measured data.
Step Size:2 4 81
1.5kH
k
H
Enter
Backspace
All clear
Clear
Increase
If a wrong unit is entered, the value is cancelled.
Decrease
85
86
GRAPH MODE
LCR-8101 User Manual
Set vertical axis (Auto + Percentage)
Background
Panel operation
The Y (vertical) axis configuration is available for:
• Manual or Automatic fit: Selects whether the
vertical range is manually set or automatically
adjusted as the graph is plotted.
• Absolute or Percentage: Selects how the vertical
range is defined, as absolute values (minimum
and maximum) or percentage of the nominal
(center) value.
1. Press F2 to select % (Percentage).
Abs %
2. Press F3 to select Auto Fit.
Auto Fit
3. The nominal value appears on the display.
Step Size:2 4 81
Nominal:
1.0000mF
Backspace
Increase
If a wrong unit is entered, the value is cancelled.
Unit Mismatched
If a value outside of the range is entered, the
All clear
Decrease
Clear
closest available value is automatically selected.
F2
Nearest Available
6. LCR-8101 automatically configures the
F3
percentage (below and above the nominal level)
of the vertical scale.
Set Nominal level
4. Press the Up/Down key to move the
cursor to Nominal.
Nominal:1.0000mF
5. Use the numerical keys to enter the nominal
value on which the Hi and Lo percentages are
based.
Range
1.2mΩ
1.5kH
According to each measurement item
(see page
31).
m
k
Ω
H
Enter
Enter
87
88
GRAPH MODE
LCR-8101 User Manual
Speed / Step Setting
Select measurement speed (capture timing)
Background
Panel operation
Slow
Med
Fast
Select step size
Background
Panel operation
The speed is the same setting used in the basic
measurement (page
50), except in the graph mode,
maximum speed setting is not available.
1. Press the Up/Down key and move
the cursor to Speed.
Speed: Fast
2. If necessary, press the Left/Right
key to change the setting (time per
capture).
500mS
450mS (AC), 120mS (Rdc)
150mS (AC), 50mS (Rdc)
The step size selects whether to plot every
captured data (step size 1) or to plot only the
selected data (step size 2, 4, 8 = every 2, 4, 8 data).
Step size 1: detailed graph, slow capturing
Step size 2, 4, 8: simplified graph, fast capturing
1. Press the Up/Down key and move
the cursor to Step size.
Step Size:2 4 81
Running Graph Measurement
Run measurement
Panel operation
1. When the configuration is
F4
completed, press F4 (Start) to start
the graph measurement.
2. The display changes into graph mode and starts
plotting the measurement data.
Measurement Ongoing
*7
CAPACITANCE VS FREQUENCY
(F)
300.0n
250.0n
20.040.060.080.0100
3.To abort the measurement, press F6
MKR: 40.000 Hz
Cs : 247.04nF
Latest Measurement
Data (Updated)
LEVEL: 10.0mV
SPEED:FAST
Drive Level (or Frequency)
and Speed
ABORT
F6
(Abort).
4. When completed, the buzzer sounds once and
the display shows the whole plotted data.
(Hz)
2. If necessary, press the Left/Right
key to change the setting.
Range
1 (plot all data), 2, 4, 8
89
90
GRAPH MODE
LCR-8101 User Manual
Marker
CAPACITANCE VS FREQUENCY
(F)
300.0n
250.0n
20.040.060.080.0100
MKR: 32.000 Hz
Cs : 250.00nF
Marker position and
Measurement data
5. To go back to the configuration
mode, press F6 (Return).
LEVEL: 10.0mV
SPEED:FAST
FUNCTION
(Hz)
RETURN
F6
F1
F6
Adjust vertical scale
Background
Panel operation
(Partially out of range)
When the measured data does not fit into the
original vertical scale, use this function so that
LCR-8101 automatically adjust the scale to include
the whole plotted data.
1. If part or all of the plotted data are
out of the vertical range, use the
automatic fit function. Press F1
(Function), then F2 (Fit).
CAPACITANCE VS FREQUENCY
(F)
300.0n
250.0n
20.0 40.0 60.0 80.0100
MKR: 32.000 Hz
Cs : 25.000nF
LEVEL: 10.0mV
SPEED:FAST
FUNCTION
RETURN
2. The vertical range is automatically adjusted to
include the whole plotted data.
(Totally out of range)
CAPACITANCE VS FREQUENCY
(F)
300.0n
250.0n
(Hz)
20.0 40.0 60.0 80.0100
MKR: 32.000 Hz
Cs : 25.000nF
LEVEL: 10.0mV
SPEED:FAST
F1
F2
FUNCTION
(Hz)
RETURN
CAPACITANCE VS FREQUENCY
(F)
FUNCTION
400.0n
100.0n
(Hz)
20.040.060.080.0100
MKR: 60.000 Hz
Cs : 60.000nF
91
92
LEVEL: 10.0mV
SPEED:FAST
RETURN
GRAPH MODE
Observe Graph Data
LCR-8101 User Manual
Background
Panel operation
When the graph is completed (page
vertical scale is adjusted (page
to observe the measurement data in detail.
In the configuration mode, if the graph
is already available, it can be viewed by
pressing F6 (View).
1. To move the marker, press the
Left/Right key. As the marker
moves, the marker position and
measurement data changes.
Command set System command ........................................... 99
This chapter describes basic aspects of IEEE488.2
based remote control. Both RS-232C and GPIB
interface can be used for remote control. For more
details such as full length command, refer to the
programming manual downloadable from
GWInstek website,
the plot, press F1 (Function) and F3
(Peak). Press F1 (View) to go back to
the previous display.
3. To move the marker to the bottom of
the plot, press F1 (Function) and F4
(Dip). Press F1 (View) to go back to
the previous display.
F1
F3
F1
F4
93
94
REMOTE CONTROL
LCR-8101 User Manual
Interface Configuration
Configure RS-232C interface
RS-232C
configuration
Parity
Data bit
Stop bit
Pin assignment
PC connection
Connector
Baud rate
DB-9, Male
9600
None
8
1
Connect the RS-232C cable to
the rear panel port: DB-9 male
connector.
1 2 3 4 5
2: RxD (Receive data)
3: TxD (Transmit data)
5: GND
6 7 8 9
7: RTS (Request to send)
8: CTS (Clear to send)
4, 6, 9: No connection
Use the Null Modem connection as in the below
diagram.
LCR-8101PC
RxD
Pin2
TxD
Pin3
GND
Pin5
RTSPin7
CTS
Pin8CTS
TxD
Pin2
RxD
Pin3
GND
Pin5
RTS Pin7
Pin8
RS232
Configure GPIB interface
Connection
Pin assignment
Pin1
Pin2
Pin3
Pin4
Pin5
Pin6
Pin7
Pin8
Pin9
Pin10
Pin11
Pin12
GPIB constraints
Connect the GPIB cable to the
rear panel port: 24-pin female
connector.
121
2413
Data line 1
Data line 2
Data line 3
Data line 4
EOI
DAV
NRFD
NDAC
IFC
SRQ
ATN
Shield (screen)
• Maximum 15 devices altogether, 20m cable
Pin13
Pin14
Pin15
Pin16
Pin17
Pin18
Pin19
Pin20
Pin21
Pin22
Pin23
Pin24
Data line 5
Data line 6
Data line 7
Data line 8
REN
Ground
Ground
Ground
Ground
Ground
Ground
Signal ground
length, 2m between each device
• Unique address assigned to each device
• At least 2/3 of the devices turned On
• No loop or parallel connection
95
96
REMOTE CONTROL
LCR-8101 User Manual
Select GPIB
address
1. Press the Menu key and F5 (System).
The system configuration appears.
Precision LCR Meter LCR-8101
Software version 2.00 Jan 20 2007
Frequency
RS-232
Graph mode
GPIB
Line frequency
Beep
GPIB address
1MHz
:
::OFF
2. Press the Up/Down key and move
the cursor to GPIB.
3. Use the numerical keys to enter the GPIB
address, 1 ~ 30.
Address 5
Enter
50Hz
5
5GPIB address:
30GPIB address:
Menu
F5
Command Syntax
Compatible
standard
Command format
• IEEE488.2, 1992 (fully compatible)
• SCPI, 1994 (partially compatible)
trig:del:mod <NR1>LF
1: command header
2: single space
1234
3: parameter
4: message terminator
Parameter Type Description Example
<Boolean>
<NR1>
<NR2>
<NR3>
<disc>
Message
terminator
Note
Terminates a command line. Note that LCR-8101
accepts only LF (line feed) as the terminator.
LF
• Commands introduced here are described in
boolean logic 0, 1
integers 0, 1, 2, 3
decimal numbers 0.1, 3.14, 8.5
floating point 4.5e-1, 8.25e+1
discrete data on, off, max
line feed code
abbreviated style (same functionality)
• Commands are non-case sensitive.
97
98
REMOTE CONTROL
LCR-8101 User Manual
Command Set
System command
*cls
*ese <NR1>
*ese?
*esr?
*idn?
*loc
*opc
*opc?
Clears the Event Status Register and associated
status data structure.
Sets or returns the current contents of the Standard
Event Status Enable Register as an integer in the range
0 to 255.
Returns the current contents of the Standard Event
Status Register as an integer in the range 0 to 255.
It also clears ESR.
Returns oscilloscope ID as Manufacturer, Model
No, Serial No, Firmware version.
Example: GW INSTEK, 8101, 0, 1.84
Sets the instrument to local state.
Sets the OPC bit of the ESR register.
Always returns 1 as instrument commands are
always processed sequentially.
*stb?
*trg
*wai
Returns the current contents of the Status Byte
with the Master Summary bits as an integer in the
range 0 to 255. Bit 6 represents Master Summary
Status rather than Request Service.
Triggers a direct measurement, but does not return
the results to the controller. This is the same as a
GET (Group Execute Trigger) command.
Command has no effect as commands are
processed sequentially.
Measurement command
:dump-bmp
:beep <disc>
:beep?
:loc-trig <NR1>
Returns the display as a windows compatible
bitmap.
Sets or returns the buzzer condition.
Set parameter: off (disabled), pass (beeps when
passed), fail (beeps when failed)
Return parameter: 0 (off), 1 (pass), 2 (fail)
Turns On/Off local triggering in remote control
Parameter: on (local control), off (remote control)
*opt?
*rst
*sre <NR1>
*sre?
:stat:oper:con?
:stat:oper:enab
<NR1>
:stat:oper:even?
Returns the hardware options installed in the
instrument.
Example: 1MHz, GPIB, RS232, GRAPH MODE
Resets LCR-8101.
Sets or returns the current contents of the Service
Request Enable Register as an integer in the range 0 to
63 and 128 to 255.
Reads Status Operation Condition register.
Sets Status Operation Enable register.
Reads Status Operation Event register.
99
:meas:equ-cct
<NR1>
:meas:equ-cct?
:meas:freq
<NR3>
:meas:freq?
:meas:func
<disc>
:meas:func:major
?
100
Selects or returns equivalent circuit.
Send parameter: ser, par
Return parameter: 0 (parallel), 1 (series)
Sets or returns frequency of AC measurement in
Hz.
Example: :cal:sc-trim 4 (calibrate for all frequency)
Returns the result of the calibration performed.
Parameter: 0 (fail), 1 (pass)
:multi:run
:multi:save
Switches to the multi-step run page.
Save currently edited file.
103
104
CALIBRATION
LCR-8101 User Manual
Trim LCR-8101
CALIBRATION
Overview
Background
O/C trimming
S/C trimming
Calibration (trimming) eliminates stray
capacitance and series impedance from the testing
fixture. It is required when using the instrument in
a new environment, or using a new set of testing
fixtures.
The testing fixture clips are separated by a distance
equal to the normal testing position.
The testing fixture clips are connected by a piece of
wire or a component lead (but no direct connection
between the clips).
Fixture setting
O/C trimming
Panel operation
Prepare the fixture accordingly. (In order to run a
complete trimming, both O/C and S/C trimming
have to be done.)
S/C trimming
1. Press the Calibration key. The
calibration mode menu appears.
CALIBRATE MODE
O/C Trim
S/C Trim
MEASURE
* To go back to the measurement
mode, press F6 (MEASURE).
2. Press F1 (O/C Trim) or F2 (S/C
Trim) to select the trimming mode.
3. The trimming menu appears.
Calibration
F1
F2
F6
F6
F1
F2
105
106
CALIBRATION
LCR-8101 User Manual
S/C trimming
SHORT THE TEST LEADS
SELECT A CHOICE
TO CONTINUE...
4. Always select F5 (All freq) when
Spot freq
<= 10kHz
<= 100kHz
All freq
using the standard fixture set
included in LCR-8101 package.
DC
Spot freq
(S/C trimming only) Trims at 0Hz.
Trims at the frequency set in the
measurement mode (page
<= 10kHz
<= 100kHz
All freq
Frequency limit example: When using a special
Frequency range is 0Hz ~ 10kHz.
Frequency range is 0Hz ~ 100kHz.
Frequency range is 0Hz ~ 1MHz.
fixture set, trimming failed at 50kHz which is
outside of the test component range (up to
5kHz). In this case, use F3 (<= 10kHz).
DC
Abort
F1
F2
F3
F4
F5
F6
F5
30).
Trim pass
The display goes back to the
calibration mode menu.
Trim fail
The Fail message appears on the
display. Press any other key to go
back to the original menu.
SHORT CIRCUIT TRIM
FAILED
Press any key to continue...
6. Switch the fixture setting from O/C to S/C (or
from S/C to O/C) and repeat from step 1.
5. The trimming starts and ends automatically.
ALL FREQUENCY
SHORT CIRCUIT TRIM
IN PROGRESS
107
108
FAQ
LCR-8101 User Manual
FAQ
Q1. The beep keeps sounding.
A1. The beep sounds according to the pass/fail test result, which in
this case is set to repetitive mode. Do one of the following.
• Set the test mode to Single (manual trigger), so that the beep
sounds only when the test is initiated manually. Press the
Sing/Rep key to change the setting. For details, see page
• Turn Off the beep entirely. Press the Menu key, F5 (System),
move the cursor to Beep and select Off using the arrow keys. For
details, see page
54.
Q2. Panel operation seems disabled.
A2. Panel (local) operation is disabled in the Remote control mode
(page
94). Press the Local key to bring back the instrument to local
operation mode (remote control is cancelled).
Q3. I cannot see the display clearly.
A3. Use the display contrast knob on the rear panel to adjust the
brightness.
49.
APPENDIX
Fuse Replacement
Step
1. Take off the power cord and remove the fuse
socket using a minus driver.
V
0
3
2
/
5
1
1
T
C
A
V
0
5
2
E
S
U
F
2. Replace the fuse in the holder.
z
H
0
6
/
0
5
A
3
For more information, contact your local dealer or GWInstek at
www.gwinstek.com.tw / marketing@goodwill.com.tw.
109
Rating
110
T3A/250V
APPENDIX
LCR-8101 User Manual
|Z| Accuracy Chart
|Z| vs L, C Chart
111
112
APPENDIX
(
)
(
)
(
(
LCR-8101 User Manual
Accuracy Definition
|Z|, |Y| High Impedance Ae[%]=±((A+0.0000001*Zx)*Kv*Kt)
Low Impedance Ae[%]=±((A+0.1/Zx)*Kv*Kt)
L, C, X, B
Ae[%] = ± (( A + 0.0000001*Zx ) * Kv * Kt)
High Impedance when D ≥ 0.1
Low Impedance when D ≥ 0.1
R, G
Ae[%] = ± (( A + 0.0000001*Zx ) * Kv * Kt)
High Impedance when Qx ≥ 0.1
Low Impedance when Qx ≥ 0.1
D
± ( (Ae/100) * (1+D2)) when D > 0.1
Q ± (((Qx
Convention A Accuracy taken from the Accuracy chart
Zx Measured value of unknown component
Kt Temperature factor
Temperature Kt Temperature Kt
8-18°C 2 28-35°C 2
18-28°C 1
De Relative D accuracy
High Impedance when D < 0.1
Ae[%] = ± (((A + 0.0000001*Zx ) * Kv*Kt)*
Low Impedance when D < 0.1
Ae[%] = ± (( A + 0.1/Zx ) * Kv * Kt)
Ae[%] = ± ((( A + 0.1/Zx ) * Kv * Kt) *
High Impedance when Qx < 0.1
Ae[%] = ± (((A + 0.0000001*Zx ) * Kv*Kt)*
Low Impedance when Qx < 0.1
Ae[%] = ± (( A + 0.1/Zx ) * Kv * Kt)
Ae[%] = ± ((( A + 0.1/Zx ) * Kv * Kt) *
± ( Ae/100) when D ≤ 0.1
2
*De) / (1±Qx*De)) when (Qx*De)< 1
Kv Te s t Volt a g e fact o r
Level Kv Level Kv
≥ 1.250 1.2 ≥ 0.078 2
≥ 0.625 1 ≥ 0.039 2.5
≥ 0.313 1.2 ≥ 0.02 5
≥ 0.156 1.5 ≥ 0.010 10
Qx Measured Q value
1 D+
1 Q+
1 D+
2
)
1 Q+
2
)
)
2
)
2
)
)
Specification
Test Freque n c y 20Hz ~ 1MHz, 5 digits, ±0.0005%
Input Impedance 100Ω
Basic Accuracy ±0.1% (R, Z, X, G, Y, B, L, C)
Test Speed AC Max 75ms, Fast 150ms, Medium
450ms, Slow 500ms
DC Max 30ms, Fast 50ms, Medium
120ms, Slow 500ms
Test Signal Levels 10mV ~ 2Vrms, 1mV step, ±2.5%
Short Circuit
Current
L 0.1nH ~ 100kH
D 0.00001 ~ 1000
Rdc 0.1mΩ ~ 100MΩ
Parameters
Dissipation Factor (D) Admittance (Y)
Susceptance (B) DC Resistance (Rdc)
Equivalent Circuit
Series Only X + R, X + D, X + Q
Polar Form Z + Phase Angle, Y + Phase Angle
LCD Display 320 x 240 Dot Matrix
Interface RS-232C, GPIB
Power Source AC 115V/230V (Selectable), 50/60Hz
Accessories User manual x 1, Power cord x 1
Dimensions 330 (W) x 170 (H) x 340 (D) mm
Weight Approx. 5kg
Max. 20mA
R, Z, X 0.01mΩ ~ 1GΩ Display Range
G, Y, B 0.001nS ~ 1kS
(1) No.7-1, Jhongsing Rd., Tucheng City, Taipei County, Taiwan
(2) No. 69, Lu San Road, Suzhou City (Xin Qu), Jiangsu Sheng, China
declare, that the below mentioned product
Type of Product: Precision LCR Meter
Model Number: LCR-8101
are herewith confirmed to comply with the requirements set out in the
Council Directive on the Approximation of the Law of Member States
relating to Electromagnetic Compatibility (89/336/EEC, 92/31/EEC,
93/68/EEC) and Low Voltage Directive (73/23/EEC, 93/68/EEC).
For the evaluation regarding the Electromagnetic Compatibility and
Low Voltage Directive, the following standards were applied:
◎EMC
Conducted Emission
Radiated Emission
EN 55022: Class A 1998 + A1:2000
Current Harmonics
EN 61000-3-2: 2000
Voltage Fluctuations
EN 61000-3-3: 1995 + A1:2001