LCR Pro1/Pro1 Plus
User Manual

User Manual - LCR Pro1/Pro1 Plus - ver 1.07

Notices
The information contained in this document is provided “as is,” and is subject to change, without notice,in future editions.
This document contains proprietary information that is protected by copyright. All rights are reserved. Nopart of this document may be photocopied, reproduced, or translated to another language without theprior agreement and written consent from LCR Research Ltd.
© LCR Research Ltd. 2016

Warranty
LCR Research warrants this product to be free from defects in materials and workmanship for a period ofone (1) year from the shipment date. LCR Research warrants the following items for ninety (90) days fromthe date of shipment: rechargeable batteries, gold plated tips and documentation. During the warranty
period, LCR Research will, at its option, either repair or replace products that prove to be defective. For
warranty service or repair, this product must be returned to a service facility designated by LCR Research.
The buyer shall prepay shipping charges to LCR Research, and LCR Research shall pay shipping charges
to return the product to the buyer. However, the buyer shall pay all shipping charges, duties, and taxes
for products returned to LCR Research from another country. Repaired or replaced products are
warranted for the balance of the original warranty period.

Limitation of WarrantyThis warranty does not cover normal wear and tear and scratches on surface or display. This warranty
does not cover physical damage to the display, switch or button, electrical damage of the product due tohigh voltage or improper battery type. This warranty shall not apply to defects resulting from improper orinadequate maintenance by the buyer, buyer-supplied software or interfacing, unauthorized modification
or misuse, operation outside the environmental specifications for the product, or improper site
preparation or maintenance.
No other warranty is expressed or implied. LCR Research specifically disclaims the implied
warranties of merchantability and fitness for a particular purpose. LCR Research shall not be liable
for errors or for incidental or consequential damages in connection with the furnishing, use, or
performance of this document or of any information contained herein.

Exclusive Remedies
The remedies provided herein are the Buyer’s sole and exclusive remedies. LCR Research shall not beliable for any direct, indirect, special, incidental, or consequential damages, whether based on contract,
tort, or any other legal theory. Such excluded damages shall include, but are not limited to: costs ofremoval and installation, losses sustained as the result of injury to any person, or damage to property.

User Manual - LCR Pro1/Pro1 Plus - ver 1.07

FCC Rules, Part 15.
This equipment has been tested and found to comply with the limits for a Class B digital device, pursuant
to part 15 of the FCC Rules. These limits are designed to provide reasonable protection against harmfulinterference in a residential installation. This equipment generates, uses and can radiate radio frequency
energy and, if not installed and used in accordance with the instructions, may cause harmful interference
to radio communications. However, there is no guarantee that interference will not occur in a particularinstallation. If this equipment does cause harmful interference to radio or television reception, which canbe determined by turning the equipment off and on, the user is encouraged to try to correct theinterference by one or more of the following measures:• Reorient or relocate the receiving antenna.
• Increase the separation between the equipment and receiver.
• Connect the equipment into an outlet on a circuit different from that to which the receiver isconnected.
• Consult the dealer or an experienced radio/TV technician for help.
This device complies with Part 15 of the FCC rules.
Operation is subject to the following two conditions:• This device may not cause harmful interference.
• This device must accept any interference received, including interference that may cause undesired
operation.
Changes or modifications not expressly approved by the party responsible for compliance could void theuser's authority to operate the equipment.

User Manual - LCR Pro1/Pro1 Plus - ver 1.07

Safety Notices
CAUTION
Cautions must be observed to avoid minor injury to yourself or damage to the product or other property.

WARNING
Warnings must be followed carefully to avoid personal injury or death or damage to the productor other property.

Safety Considerations
Read the information below before using this meter. This meter is intended for use by qualified personnel
who recognize shock hazards and are familiar with the safety precautions required to avoid possible
injury. The following general safety precautions must be observed during all phases of operation, service,
and repair of this meter. Failure to comply with these precautions or with specific warnings elsewhere inthis manual violates safety standards for design, manufacture, and intended use of the meter. LCR
Research assumes no liability for the customer’s failure to comply with these requirements.

CAUTION••••

Disconnect circuit power and discharge all high-voltage capacitors before testing.
When measuring in-circuit components, first de-energize the circuits before connecting them to thetest tips.
The battery must be charged by a computer USB port or a USB power adapter that provides output
voltage DC 5V ± 5%.
This meter is for indoor use.

WARNING
•
•
•
•
•
•
•
•
•

•

Use this meter only as specified in this manual, otherwise, the protection provided by themeter may be impaired.
Do not use the meter if it is damaged. Before you use the meter, inspect the case. Look forcracks or missing plastic.
Inspect the test tip sleeves for damaged insulation or exposed metal. Check the test tips forcontinuity. Replace damaged test tip sleeves before you use the meter.
Do not touch exposed metal in measurement. Keep your fingers on insulated test tip sleeves.
Do not use the meter if it operates abnormally.
Do not operate the meter around explosive gas, vapor, or in wet environments.
Never use the meter in wet conditions or when there is water on the surface. If the meter iswet, ensure that the meter is dried only by trained personnel.
When servicing the meter, use only the specified replacement parts.
Do not attempt to replace the internal lithium-ion polymer battery yourself. You may damage
the battery, which could cause overheating and injury. The battery should be replaced only by
an LCR Research Authorized Service Provider, and must be recycled or disposed of separatelyfrom household waste. Don’t incinerate the battery.
Do not use damaged cables or chargers, or charge when moisture is present. It can cause fire,electric shock, injury, or damage to the product or other property.
User Manual - LCR Pro1/Pro1 Plus - ver 1.07

Contents
1. Overview
Product Introduction ................................................................................................................................ 1
Features and Functions............................................................................................................................. 1
The Navigation Button ............................................................................................................................. 1
Turn On the Meter ................................................................................................................................... 2
Power Off ................................................................................................................................................. 2
Switching to Menu Screen from Measurement Screen.............................................................................. 2
Charging the Battery ................................................................................................................................ 3
Battery Level Indicator .............................................................................................................................. 3
Display ..................................................................................................................................................... 4
Connecting to PC ..................................................................................................................................... 6
Reset the Meter........................................................................................................................................ 7
Cleaning the Meter................................................................................................................................... 7

2. Setting Up Menus
Menu Structure ........................................................................................................................................ 8
Navigating Menus .................................................................................................................................... 9Main Menu............................................................................................................................................... 9Autoset .................................................................................................................................................... 9
System Menu ......................................................................................................................................... 10
System Autoset.................................................................................................................................. 10
Display Menu..................................................................................................................................... 10
Sound Menu ...................................................................................................................................... 11
Timeout Menu ................................................................................................................................... 12
Test Speed Menu ............................................................................................................................... 12
Self-Calibration .................................................................................................................................. 13
Info Menu .......................................................................................................................................... 15
Measurement Menu ............................................................................................................................... 15
LCRZ Menu ........................................................................................................................................ 16
Secondary Parameter Menu ............................................................................................................... 16
Sorting Menu..................................................................................................................................... 17
Recording Menu ................................................................................................................................ 17
Test Parameters Menu............................................................................................................................ 18
Parameter Autoset ............................................................................................................................. 18
Test Frequency Menu ........................................................................................................................ 18
Test Voltage Menu ............................................................................................................................ 19
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Circuit Mode Menu ............................................................................................................................ 19
Phase Angle Menu ............................................................................................................................. 20
Set Continuity Menu .......................................................................................................................... 20
Sorting Tolerance Menu..................................................................................................................... 21
Sorting Reference Menu .................................................................................................................... 21
Viewing Sorting Reference Values ...................................................................................................... 22
Typing in a New Sorting Reference Value .......................................................................................... 22

3. Making Measurements
LCRZ Measurement ................................................................................................................................ 24
Auto Mode ........................................................................................................................................ 26
Measuring Resistance (R) ................................................................................................................... 26
Measuring Inductance (L)................................................................................................................... 27
Measuring Capacitance (C) ................................................................................................................ 27
Measuring Impedance (Z) .................................................................................................................. 28
Selecting Secondary Parameters ............................................................................................................. 28
Selecting Circuit Mode ........................................................................................................................... 29
Selecting Test Frequency ........................................................................................................................ 29
Selecting Test Voltage ............................................................................................................................ 29
ESR Measurement .................................................................................................................................. 30
DCR Measurement ................................................................................................................................. 30
Diode Measurement............................................................................................................................... 31
Continuity Measurement ........................................................................................................................ 32
Sorting Mode ......................................................................................................................................... 33
Recording Mode .................................................................................................................................... 35
Holding the Display ................................................................................................................................ 36

4. Characteristics and Specifications
Product Characteristics ........................................................................................................................... 37
Electrical Specifications .......................................................................................................................... 38
Testing Signal Specifications .............................................................................................................. 38
Measurement Ranges and Optimal Testing Frequency....................................................................... 38
Specification Assumptions ................................................................................................................. 38
Resistance Accuracy Specifications..................................................................................................... 39
Inductance Accuracy Specifications .................................................................................................... 40
Capacitance Accuracy Specifications .................................................................................................. 41
LED Testing Accuracy Specifications................................................................................................... 42

User Manual - LCR Pro1/Pro1 Plus - ver 1.07

Overview
This chapter provides the basic operation procedures and describes names and functions on the display.

Product Introduction
LCR Pro1/Pro1 Plus (“the meter”) is a portable impedance measuring device for incoming inspection ofcomponents, quality control, and laboratory use.
It is capable of measuring resistance, capacitance or inductance with 5 test frequencies (100Hz, 120Hz, 1kHz,
10kHz and 100kHz). It has a basic accuracy better than 0.1% for resistance and 0.2% for capacitance andinductance measurements.
The meter has a pair of gold plated tips that can pick the SMD components with size down to 01005 (0.4mm x
0.2mm). The parasitic parameters of its probes are small and very predictable thanks to its unique mechanicaldesign. It significantly reduces the probability of measurement errors related to setup (such as wires, probes,tips).

Features and Functions

Navigation button
OLED display

Tweezers type test probes
Replaceable goldplated tips

Micro-B
USB

Figure 1-1: LCR Pro1/Pro1 Plus Overview

The Navigation Button
The navigation button is used to browse and select different functions and parameters. It includes the “Up”,“Down” and “Select” buttons as Figure 1-2 shows.
"Up" button"Select" button"Down" button
Figure 1-2: Navigation Button
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The navigation button can be used for shortcut operation as well. Therefore, user can switch settings quickly inthe measurement display and doesn’t need to go back and forth between the menu display and measurement
display. Detailed information is provided in Chapter 3: Making Measurements.

NOTE
When it switches from right hand operation to left hand operation, the “Up” and “Down” buttons are switchedposition as well.

Turn On the Meter
To power on the meter, press the “Select” button once. The meter powers up with the most recently selected
measurement function.

Power Off
There are two ways to power off the meter:
1. Automatic power off. The meter powers off automatically if neither a measurement is performed nor any
button is clicked during the timeout period. To change timeout setting, please go to main menu ->System -> Timeout. (Please refer to page 12: Timeout for the available options.)
2. Manual power off by selecting the turn off option from main menu as Figure 1-3 shows.

Figure 1-3: Turning off Display

NOTE
If test frequency is manually set to 10kHz or 100kHz, automatic power off may take longer to occur or not occur
at all. This is due to the meter being more sensitive at 10kHz or 100kHz. It may see parasitic values and keep
measuring even when the tips are open.

Switching to Menu Screen from Measurement Screen
When the meter is in measurement mode, user can switch it to menu screen by pressing down the "Select" button for
half second or so until the main menu screen shows up. Figure 1-4 shows the meter goes to main menu screen from
active mode (measuring components). Figure 1-5 shows the meter goes to main menu screen from idle mode (notmeasuring any component in measurement mode).
Hold the "Select" button for
half second to switch

Figure 1-4: Switching from Measurement Display (in Active Mode) to Main Menu Display

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Hold the "Select" button for
half second to switch

Figure 1-5: Switching from Measurement Display (in Idle Mode) to Main Menu Display

Charging the Battery
The meter is powered by an internal, lithium-ion polymer rechargeable battery. It can be charged by connecting
to a computer USB port using a standard micro-B USB cable or, by using a USB power adapter. The USB power
adapter should have output voltage 5V +/- 5% with output current 100mA or greater. The USB power adapter isavailable separately.

Figure 1-6: Charging the Meter

Battery Level Indicator
The battery icon in the bottom-right corner shows the battery level or charging status.
When the battery icon becomes hollow, it indicates that the battery remaining capacity is low and that it should
be recharged. The warning appears when the battery capacity is about 95% depleted. The unit is still operational
for a while, however the battery should be recharged as soon as possible.

Full Capacity

Empty Battery

Figure 1-7: Battery Charging Icon

CAUTION
Rechargeable batteries have a limited number of charge cycles and may eventually need to be replaced. The
meter battery isn’t user replaceable; it can be replaced only by an LCR Research Authorized Service Provider.

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Display
This section describes the names and functions of parts on the meter display.

Figure 1-8: Measurement Display
The general display indicators of the meter are described in Table 1-1 below. Each display indicator is described.
Please select the respective “Learn More On" page for more information on each indicator.
Table 1-1 General Display Indicators
Indicator

Description

Learn More On:

A

Auto mode indicator, the meter selects R, L C automatically according
to the component under test.

Page 26

R

Resistance measurement indicator

Page 26

Ls

Inductance measurement indicator in series circuit mode

Page 27

Lp

Inductance measurement indicator in parallel circuit mode

Page 27

Cs

Capacitance measurement indicator in series circuit mode

Page 27

Cp

Capacitance measurement indicator in parallel circuit mode

Page 27

Z

Impedance measurement indicator

Page 28

ESR (Equivalent Series Resistance) indicator

Page 30

DCR (Direct Current Resistance) indicator

Page 30

Auto circuit mode, the meter selects series mode for measurement.

Page 29

Auto circuit mode, the meter selects parallel mode for measurement.

Page 29

Manual circuit mode in series mode

Page 29

Manual circuit mode in parallel mode

Page 29

Rs

Series resistance indicator

Page 28

Rp

Parallel resistance indicator

Page 28

D

Dissipation factor indicator

Page 28

Q

Quality factor indicator

Page 28

Ө

Phase angle of impedance indicator

Page 26

AF

Auto select test frequency

Page 29

MF

Manual select test frequency

Page 29

100HZ

Test frequency at 100Hz

Page 29

Table 1-1 (continued from previous page)
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Indicator

Description

Learn More On:

120HZ

Test frequency at 120Hz

Page 29

1KHZ

Test frequency at 1kHz

Page 29

10KHZ

Test frequency at 10kHz

Page 29

100KHZ

Test frequency at 100kHz

Page 29

0.2V

Test voltage at 0.2Vrms

Page 29

0.5V

Test voltage at 0.5Vrms

Page 29

1.0V

Test voltage at 1.0Vrms

Page 29

DC=1.0V

Test voltage at DC 1.0V

Page 30

REF

Reference value in sorting mode

Page 22

CONT.

Continuity mode

Page 31

MAX

Maximum value in recording mode

Page 34

MIN

Minimum value in recording mode

Page 34

AV

Average value in recording mode

Page 34

CNT

Count the measurement cycles in recording mode

Page 34

Hold

Data hold mode indicator

Page 34

USB data communication indicator

Page 6

Sound on indicator

Page 11

Sound off indicator

Page 11

Battery capacity indicator

Page 3

Good diode indicator

Page 31

Damaged diode indicator

Page 31

Up button indicator

Page 22, Page 31

Down button indicator

Page 22, Page 31

Select button indicator

Page 22

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The units listed below are applicable to the primary display measurements of the meter.
Table 1-2 Display of Measurement Units
LegendDescription

Mmega 1E+06 (1000000)

K

kilo 1E+03 (1000)m

milli 1E–03 (0.001)

umicro 1E–06 (0.000001)

nnano 1E–09 (0.000000001)ppico 1E–12 (0.000000000001)°

Degree, unit for phase angle measurement%

Percentage, unit for tolerance measurement

H

Henry, units for inductance measurement

F

Farad, units for capacitance measurementΩ

Ohm, units for resistance and impedance measurement

Connecting to PC
When the meter is connected to a PC via LCR Link1, it can be controlled remotely by the LCR Data Logger
software.
The LCR Link1 is a dongle style communication module that links the meter to PC. It uses a fully integrated
isolation technology to transfer data and charge the meter. This technology prevents PC noise interference sothat the meter’s performance and accuracy do not degrade when it is connected to PC.
The LCR Data Logger software can be used not only to configure the meter settings and parameters but also tolog the data to an Excel spreadsheet. It also provides some unique functions, such as:• Data Filter: Set a threshold to prevent undesired data from being logged due to bad contact, switchingcomponents, etc.
• Multi-component identification: The device performs step by step measurement on several components.
User doesn't need to switch parameters manually when switching from one component to another. The
device automatically sets the parameters according to the programming. It records the results andreports Pass or Fail.

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Figure 1-9: Snapshot of the LCR Data Logger Software
Refer to the user manual of LCR Data Logger Software for more information on the LCR Link1 communication
module and the LCR Data Logger software.
The LCR Link1 is an aftermarket accessory that can be purchased separately. The LCR Data Logger software andits user manual are available for free download at http://www.lcrresearch.com.

Reset the Meter
The hardware reset function can reset the meter to factory original settings no matter which mode it is currently
in. To perform hardware reset, just press down both "Up" and "Down" buttons for more than 10 seconds until
the display is off. Releasing both buttons will reboot the meter.

NOTE
After the meter is reset, all the self-calibration data will be removed. Please perform self-calibration again if
necessary.

Cleaning the MeterWARNINGTo avoid electrical shock or damage to the meter, always keep the insides of the casing dry.
Dirt or moisture on the tips can affect measurement accuracy. Follow the steps below to clean the tips and case.
1. Shake out any dirt that may be on the tips.
2. Wipe the tips with a clean swab dipped in alcohol.
3. Wipe the case with a damp cloth and mild detergent.

NOTE
Do not use abrasives or solvents when cleaning the meter.
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Setting Up Menus
This chapter describes how to set up menu items and parameters.

Menu Structure
AutosetSYS. Autoset

Right Hand
Left Hand

Display
Contrast

Exit

SystemSound

Sound OffSound On
Exit

Timeout

30 sec
1 min
2 min
4 min
Exit

Test Speed

20%
30%
40%
50%
60%
70%
80%
90%
100%
Exit
PAR. Autoset

Test FREQ U.

Auto
100Hz
120Hz
1kHz
10kHz
100kHzExit

Test VOLT.

1.0Vrms
0.5Vrms
0.2Vrms
Exit

CIRC. Mode

Auto
SeriesParallel
Exit

Phase Angle

5°
10°
15°
20°
30°
45°
Exit

Set CONTIN.

0.1 ohm
0.5 ohm
1 ohm
10 ohm100 ohm
1 kohmExit

SORT. TOLER.

0.5%
1.0%
5.0%
10.0%
20.0%
30.0%
Exit

SORT. REF.

View REF. VA
Input REF. R
Input REF. L
Input REF. C
Exit

0.5 s
1.0 s
2.0 s
Exit

Self CALI.

Info

HW - Rev
SW - Rev

Exit

LCRZ

Measurement

SEC. P ARAM.

ESR
DCR
Diode
Continuity
Sorting
Recording
Exit

Auto
Res
Ind
Cap
Z
Exit
Rs-Rp
D-Q
Exit

Sort R
Sort L
Sort C
Exit
REC. R
REC. LREC. C
Exit

Test PARAM.

Turn Off
Exit

Exit

Figure 2-1: Menu Structure Flowchart

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Navigating Menus
Press the “Up” or “Down” button to move cursor to the desired menu item and press the “Select” button to
select it. The item that is highlighted indicates the current setting.
Selected item

Up button

Available
items

Select button

Menu extension

Down button

Figure 2-2: Navigating Menus

Main Menu

Main menu provides 5 options as described in Table 2-1.
Table 2-1 Description of Main Menu
Menu Item

Description

Learn More On:

AutosetReset all the settings to default

Page 9SystemSelect user interface, start self-calibration and view device
information

Page 10

Measurement

Select measurement types

Page 15

Test PARAM.

Select test parameters

Page 18

Turn Off

Turn off the meter

Page 2

Exit

Return to the measurement display

Figure 2-3: Main Menu

AutosetOnce Autoset is selected, the meter resets the following parameters to default:• Measurement:o LCRZ: Autoo Secondary Parameters: Rs/Rp• Test Parameters:o Test Frequency: Autoo Test Voltage: 1.0Vrms
o Circuit Mode: Autoo Phase Angle: 10°
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System Menu

8 items can be selected in system menu as described in Table 2-2.
Table 2-2 Description of System Menu
Menu Item

Description

Learn More On:

SYS. Autoset

Reset all the settings to default in the system menu.

Page 10

Display

Select left/right hand operation and adjust display contrast.

Page 10Sound

Turn on/off sound.

Page 11

Timeout

Select the timer to power off the meter automatically.

Page 12

Test Speed

Define how fast the meter measures the component under
test and update the reading on display.

Page 12

Self CALI.

Start short and open calibration.

Page 13

Info

Provide the device information including serial number,
hardware and software version.

Page 15

Exit

Return to the measurement display.

Figure 2-4: System Menu

System Autoset

System Autoset is used to reset the following system parameters to default:• Displayo Right Hand
o 40% Contrast• Sound: On• Timeout: 1min
• Test Speed: 1.0sec

Display Menu
Display menu is used to select display settings. The default setting is right hand with 40% contrast. The Display
menu has 4 options as Figure 2-5 shows:• Right Hand: select the right hand operation mode.
• Left Hand: select the left hand operation mode.
• Contrast: change the display contrast settings.
• Exit: Return to the measurement display.

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Figure 2-5: Display Menu
Contrast menu is used to adjust the display contrast. The following values can be selected from the darkest 20%
to the brightest 100%:
• 20%
• 30%
• 40%
• 50%
• 60%
• 70%
• 80%
• 90%
• 100%• Exit: Return to the measurement display.

Figure 2-6: Contrast Menu

Sound Menu
Sound menu is used to turn sound on and off. The default setting is On. The Sound menu has 3 options as
Figure 2-7 shows:• Sound On: turn on sound.
• Sound Off: turn off sound.
• Exit: Return to the measurement display.

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Figure 2-7: Sound Menu

Timeout Menu

Timeout menu is used to select the timer to powers off the meter automatically if neither a measurement isperformed nor any button is clicked. The default setting is 1 minute and the following timeout values can beselected:• 30sec• 1min• 2min• 4min• Exit: Return to the measurement display.

Figure 2-8: Timeout Menu

Test Speed Menu
Test speed menu is used to select how fast the meter measures the component under test. The default setting is
1.0 second per measurement and the following test speeds can be selected:• 0.5sec• 1.0sec• 2.0sec• Exit: Return to the measurement display.

Figure 2-9: Test Speed Menu

NOTE
The faster the test speed, the shorter the battery life as the meter works in active mode more often to perform
more measurements.

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Self-Calibration
The self-calibration includes short and open calibration. It offsets the meter’s internal and external parasitic
parameters for better accuracy. Performing this action will help the user correct the influence for temporary
uses.
Table 2-3 describes how to set up the meter to self-calibration.
Table 2-3: Set Up Self-Calibration
Settings

Menu Structure

Self-Calibration

Main Menu -> System -> Self-Calibration

In self-calibration mode, the step by step instructions are shown on the display. Follow these instructions toperform the short/open calibration:
1. When self-calibration is selected, Figure 2-11 shows on the display. Please shorten 2 tips and press any
button to start the short calibration.

Figure 2-10: Start Short Calibration
2. Once any button is pressed, Figure 2-12 shows on the display indicating short calibration is in progress.

Figure 2-11 Calibration in Progress
3. After a couple of seconds, the short calibration is completed. Figure 2-12 shows on the display. Please keep
the tips open and press any button to start the open calibration.

Figure 2-12: Start Open Calibration

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4. Once any button is pressed, Figure 2-13 shows on the display indicating open calibration is in progress.

Figure 2-13: Calibration in Progress
5. After a couple of seconds, the open calibration is completed. If the result is good, a calibration done
message will be shown on the display indicating the whole self-calibration process is completed. Pleasepress any button to return to the measurement mode.

Figure 2-14: Calibration Completed
6. If the result is out of range, a fail message will be on the display as Figure 2-15 shows. Please press any
button to return to the measurement mode. If necessary, please start the self-calibration process again fromthe beginning.

Figure 2-15: Calibration Failed

NOTE(1) It is recommended that the user performs open/short calibration before making precision measurements.
(2) When doing short calibration, please always keep the tips shorted firmly. The calibration process may fail if
the tips are in poor contact condition during the short calibration process.
(3) The distance between the tips creates small parasitic capacitance. When such distance varies (i.e. measuringcomponents with different sizes), the parasitic capacitance varies as well. Therefore, when doing open
calibration, please keep the tip distance as close as possible to the actual size of the component to bemeasured. It can compensate for the parasitic capacitance most accurately.
(4) After the battery is completely dead or hardware reset is performed, all the self-calibration data will be
removed. Please perform self-calibration again if necessary.
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Info Menu
The following device information has been provided in the Info menu:• HW Version: it provides the device hardware version.
• SW Version: it provides the device software version.

Figure 2-16: Info Menu

Measurement Menu

8 items can be selected in Measurement menu as described in Table 2-4.
Table 2-4 Description of Measurement Menu
Menu Item

Description

Learn More On:

LCRZ

Measure inductance (L), capacitance (C), resistance (R) or
impedance (Z).

Page 16, Page 24

SEC. PARAM.

Select the secondary parameter to be displayed.

Page 16, Page 28

ESR
DCR
Diode
Continuity

Measure the equivalent series resistance (ESR) of acapacitor, independent of its capacitance.
Measure the resistance of an unknown component bydirect current resistance (DCR) mode.
Test diode polarity or indicate a faulty diode if it sees
short/open conditions.
Test whether the component under test is electricallyconnected.

Page 30
Page 30
Page 31
Page 31

Sorting

Sort the component according to the preset tolerance.

Page 17, Page 32

Recording

Record the maximum, minimum, average result andmeasurement cycles during a series of measurements.

Page 17, Page 34

Exit

Return to the measurement display

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Figure 2-17: Measurement Menu

LCRZ Menu
The following settings can be selected in LCRZ menu and the default setting is Auto.
• Auto: the meter automatically identifies the component under test (L, C or R).
• R: measure resistance.
• L: measure inductance.
• C: measure capacitance.
• Z: measure impedance.
• Exit: Return to the measurement display.

Figure 2-18: LCRZ Menu

Secondary Parameter Menu
The following settings can be selected in Secondary Parameter menu and the default setting is Rs-Rp.
• Rs-Rp: the meter displays series resistance (Rs) or parallel resistance (Rp). If the circuit mode is selected
as series, Rs will be displayed. If the circuit mode is selected as parallel, Rp will be displayed.
• D-Q: the meter displays dissipation factor (D) or quality factor (Q). If a capacitor is being measured, Dwill be displayed. If an inductor is being measured, Q will be displayed.
• Exit: Return to the measurement display.

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Figure 2-19: Secondary Parameter Menu

Sorting Menu
Sorting menu is used to set the component type in sorting mode. The following settings can be selected:• Sort R: the meter measures the resistance of the component under test and tells the user whether it is in
the range or not.
• Sort L: the meter measures the inductance of the component under test and tells the user whether it is in
the range or not.
• Sort C: the meter measures the capacitance of the component under test and tells the user whether it isin the range or not.
• Exit: Return to the measurement display.

Figure 2-20: Sorting Menu

Recording Menu

Recording menu is used to set the component type in recording mode. The following settings can be selected:• REC. R: recording resistance.
• REC. L: recording inductance.
• REC. C: recording capacitance.
• Exit: Return to the measurement display.

Figure 2-21: Recording Menu

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Test Parameters Menu

8 items can be selected in parameters menu as described in Table 2-5.
Table 2-5 Description of Test Parameter Menu
Menu Item

Description

Learn More On:

PAR. Autoset

Reset all the settings to default in the test parameters
menu.

Page 18

Test FREQU.

Set the frequency of the test signal.

Page 18, Page 29

Test VOLT.

Set the voltage level of the test signal.

Page 19, Page 29

CIRC. Mode

Set the circuit mode.

Page 19, Page 29

Phase Angle

Set the phase angle condition for automatic component
Page 20
identification mode.

Set CONTIN.

Set the threshold in continuity mode.

Page 20

SORT. TOLER.

Set the tolerance range in sorting mode.

Page 21

SORT. REF.

Set or view the reference values used in sorting mode.

Page 21

Exit

Return to the measurement display

Figure 2-22: Test Parameters Menu

Parameter Autoset
Parameter Autoset is used to reset the following test parameters to default:• Test Frequency: Auto
• Voltage Level: 1.0Vrms• Circuit Mode: Auto
• Phase Angle: 10°

Test Frequency Menu
Test Frequency menu is used to set the frequency of the test signal. The default setting is Auto andthe following settings can be selected:• Auto: auto frequency (AF) mode, the meter automatically selects the best test frequency.
• 100Hz: set test frequency to 100Hz.
• 120Hz: set test frequency to 120Hz.
• 1kHz: set test frequency to 1kHz.
• 10kHz: set test frequency to 10kHz.
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••

100kHz: set test frequency to 100kHz.
Exit: Return to the measurement display.

Figure 2-23: Test Frequency Menu

Test Voltage Menu
Test Voltage menu is used to set the voltage level of the test signal. The default setting is 1.0Vrms
and the following settings can be selected:• 1.0Vrms: set test voltage to 1.0Vrms.
• 0.5Vrms: set test voltage to 0.5Vrms.
• 0.2Vrms: set test voltage to 0.2Vrms.
• Exit: Return to the measurement display.

Figure 2-24: Test Voltage Menu

Circuit Mode Menu
Circuit Mode menu is used to set the secondary parameters on the display. The default setting is
Auto and the following settings can be selected:• Auto: set to auto circuit mode. Series or parallel circuit mode will be automatically identified.
• Series: set to series circuit mode.
• Parallel: set to parallel circuit mode.
• Exit: Return to the measurement display.

Figure 2-25: Secondary Parameters Menu

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Phase Angle Menu
Phase angle menu is used to set the phase angle condition for auto component identification. When the meterworks in auto mode, it automatically identifies component type according to the phase angle setting. The
default setting is 10° and the following settings can be selected:
• 5°
• 10°
• 15°
• 20°
• 30°
• 45°
• Exit: Return to the measurement display.

Figure 2-26: Phase Angle Menu

Set Continuity Menu
Set Continuity menu is used to set the resistance threshold. When the meter works in continuity mode, it beeps
if the component has a resistance less than the threshold. The default setting is 10Ω and the following settings
can be selected:• 0.1Ω• 1Ω• 10Ω• 100Ω• 1kΩ• Exit: Return to the measurement display.

Figure 2-27: Continuity Threshold Menu

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Sorting Tolerance Menu
Sorting Tolerance menu is used to set the sorting tolerance ranges. When the meter works in sorting mode, it
beeps once if the component under test is within the tolerance range. If the component under test is out of thetolerance range, the meter beeps three times. The default setting is 10% and the following settings can beselected:
•

•
•
•
•
•
•

0.5%

1.0%
5.0%
10.0%
20.0%
30.0%
Exit: Return to the measurement display.

Figure 2-28: Sorting Tolerance Menu

Sorting Reference Menu
Sorting Reference menu is used to view or set the reference values used in sorting mode. The following settings
can be selected:• View REF. VA: view the existing reference values.
• Input REF. R: type in the new reference value for resistance.
• Input REF. L: type in the new reference value for inductance.
• Input REF. C: type in the new reference value for capacitance.
•
Exit: Return to the measurement display.

Figure 2-29: Sorting Reference Menu

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Viewing Sorting Reference Values
The meter can store 3 reference values for sorting mode: one for resistance, one for inductance and one forcapacitance. The default setting is 1KΩ for resistance, 1uF for capacitance and 1mH for inductance as Figure 230 shows.

Figure 2-30: View Reference Values
Table 2-6 describes how to select the option from main menu to view sorting reference values.
Table 2-6: View Sorting Reference Values
Settings
View Sorting Reference
ValuesAvailable Options
View Sorting
Reference Values

Menu Structure
Main Menu -> Test PARAM.
-> SORT. REF -> View REF. VA

Typing in a New Sorting Reference Value
User can type in a value and save it as the sorting reference value. When a new value is saved, it overwrites theold value.
Table 2-7 describes how to select settings from main menu to set up new reference values.
Table 2-7: Parameter Settings to Set Up New Reference Values
Settings
Set Up New Sorting
Reference Values

Available Options
Input REF. R,
Input REF. L,
Input REF. C,

Menu Structure
Main Menu -> Test PARAM. ->SORT. REF.

Below is an example to explain how to input a new reference resistance value. The same rule applies to input
new inductance or capacitance reference value as well.
To input a new reference resistance value, please select the “Input REF. R” option as Table 2-7 indicates. Once it
is selected, the meter asks user to input 5 digits reference value including the decimal. Please follow the on
screen instruction to use the "Up" and "Down" buttons to select the desired number, then press the "Select"button to move to the next digit. Figure 2-31 shows a display that 5 digits (80.860) have been input.

Figure 2-31: Input Digits of Reference Resistance Value
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After 5 digits are typed in, the meter asks user to select unit. Press the "Up" or "Down" button to switch 4
options including mΩ, Ω, kΩ, MΩ. Then press the "Select" button to select the desired unit. Figure 2-32 shows adisplay that the unit (kΩ ) has been selected.

Figure 2-32: Input Unit for Reference Resistance Value
Once the unit is selected, the meter asks user whether to save the value as the reference value or not. As Figure
2-33 shows, user can discard the value by pressing the "Up" or "Down" button or save the value by pressing the"Select" button.

Figure 2-33: Save Reference Resistance Value from Inputting
If "Select" button is pressed, such value (80.860 kΩ) is saved as the new reference value for resistance sorting as
Figure 2-34 shows.

Figure 2-34: View Reference Values

NOTE(1) The sorting reference value can be set up by either inputting a value or measuring a component and saving
the actual result as the reference value. To get detailed instruction on how to set up the reference value by
measuring, please refer to page 34: Holding the Display.
(2) After the battery is completely dead or hardware reset is performed, all the sorting reference values will bereset to default. Please set these values again if necessary.

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Making Measurements
The meter provides 7 measurement types which are: LCRZ, ESR, DCR, diode, continuity, sorting and recording.
This chapter describes how to select a measurement type, set parameters, perform measurements and get theresults of the component under test.

WARNINGTo avoid electrical hazards and possible damage to the meter or to the equipment under test, always
discharge the capacitor to be tested before measuring. For in circuit measurement, always disconnect
circuit power and discharge all high-voltage capacitors before testing.

NOTE
When doing in circuit testing, the test result may be affected by other components that connect to thecomponent under test. The component under test may need to be isolated from other components in order to
get accurate result.

LCRZ Measurement
LCRZ measurement includes auto mode (Auto), resistance measurement (R), inductance measurement (L),capacitance measurement (C) and impedance measurement (Z).
Figure 3-1 shows a typical display in LCRZ measurement. It shows test frequency and test voltage on the top.
The primary display is in the middle showing component type and measurement result. The secondary
parameter reading is shown underneath the primary display. The circuit mode, sound icon and battery indicatorare displayed on the bottom.
Test frequency (single click the "Up" button to switch)
Test voltage (double click the "Up" button toswitch)Component type and measurement result(double click the "Select" button to switch)
Secondary parameter(single click the "Down" button to switch)
Battery indicatorSound
Circuit mode (double click the "Down" button to switch)
Figure 3-1: Display of LCRZ Measurement
Shortcuts are provided to quickly select the settings. Below are the available shortcuts in LCRZ measurement:• Single click the “Up” button to switch test frequency as Figure 3-2 shows.
• Double click the “Up” button to switch test voltage as Figure 3-3 shows.
• Double click the “Select” button to switch component type as Figure 3-4 shows.
• Single click the “Down” button to switch secondary parameter setting as Figure 3-5 shows.
• Double click the “Down” button to switch circuit mode as Figure 3-6 shows.
• Press down the "Select" button for half second or so to go to the main menu screen.

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AF
100Hz

Single Click
Up Button

120Hz
1kHz
10kHz
100kHzFigure 3-2: Switch Test Frequency by Single Clicking the "Up" Button

0.2Vrms
Double Click
Up Button

0.5Vrms
1.0Vrms

Figure 3-3: Switch Test Voltage by Double Clicking the "Up" Button

AutoR
Double Click
Select Button

L
CZ

Figure 3-4: Switch Component Type by Double Clicking the “Select” Button

Rs-Rp
Single Click
Down Button
D-Q
Figure 3-5: Switch Secondary Parameter Setting by Single Clicking the "Down" Button

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Auto
Double Click
Down Button

SeriesParallelFigure 3-6: Switch Circuit Mode by Double Clicking the "Down" Button

Auto Mode
In auto mode, the meter identifies resistance (R), inductance (L) and capacitance (C) automatically.
Table 3-1 describes how to set up the meter to auto mode.
Table 3-1: Set Up Auto Mode
Settings
Auto

Menu Structure
Main Menu -> Measurement -> LCRZ ->Auto

In auto mode, the meter identifies L, C, and R according to the angle of impedance detected in the component
under test. Table 3-2 lists the phase angle rules and the phase angle settings are described on page 20: Phase
Angle.
Table 3-2 Auto Mode Phase Angle Rules
Phase Angle Setting

Primary Display|Q| < phase angle

RQ >= +phase angle

L

Q =< -phase angle

CNOTE(1) When auto mode is selected, the testing frequency and secondary parameter stay unchanged. To change
them separately, please refer page 29: Selecting Circuit Mode and page 29: Selecting Test Frequency.
(2) The autoset option in main menu can be used to reset the meter to the default mode (auto mode with auto
testing frequency and auto circuit mode). Please refer page 9: Autoset to know which settings will be reset
when autoset is selected.

Measuring Resistance (R)Table 3-3 describes how to set up the meter to resistance measurement. In R mode, the meter shows phaseangle (θ) as the secondary parameter.
Table 3-3: Set Up Resistance Measurement

26

Settings

Menu Structure

R

Main Menu -> Measurement -> LCRZ -> R

User Manual - LCR Pro1/Pro1 Plus - ver 1.07

Test frequency (single click the "Up" button toswitch)Test voltage (double click the "Up" button toswitch)Component type and measurement result(double click the "Select" button to switch)
Secondary parameter

Figure 3-7: Display of R measurement

Measuring Inductance (L)Table 3-4 describes how to set up the meter to inductance measurement.
Table 3-4: Set Up Inductance Measurement
Settings

Menu Structure

L

Main Menu -> Measurement -> LCRZ -> L

In L mode, the component type shows Ls when circuit mode is selected as series and shows Lp when circuitmode is selected as parallel. If auto circuit mode is selected, series circuit mode will always be used for
inductance measurement.
Test frequency (single click the "Up" button toswitch)Test voltage (double click the "Up" button toswitch)Component type and measurement result(double click the "Select" button to switch)
Secondary parameter(single click the "Down" button to switch)
Circuit mode (double click the "Down" button toswitch)Figure 3-8: Display of L measurement

Measuring Capacitance (C)Table 3-5 describes how to set up the meter to capacitance measurement.
Table 3-5: Set Up Capacitance Measurement
Settings

Menu Structure

C

Main Menu -> Measurement -> LCRZ -> C

In C mode, the component type shows Cs when circuit mode is selected as series and shows Cp when circuitmode is selected as parallel. If auto circuit mode is selected, series circuit mode or parallel circuit mode will be
automatically identified. See Table 3-9 for the series/parallel rules used.

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Test frequency (single click the "Up" button toswitch)Test voltage (double click the "Up" button toswitch)Component type and measurement result(double click the "Select" button to switch)
Secondary parameter(single click the "Down" button to switch)

Figure 3-9: Display of C measurement

Circuit mode (double click the "Down" button toswitch)Measuring Impedance (Z)The impedance measurement is used to measure the combination of Resistance (R) and Reactance (X) and ismeasured in ohms (Ω). All circuit components, resistors, capacitors, and inductors have parasitic components,
such as unwanted inductance in resistors, unwanted resistance in capacitors, unwanted capacitance in inductors,
etc. Thus, simple components should be modeled as complex impedances. In Z mode, the meter shows phaseangle (θ) as the secondary parameter.
Table 3-6 describes how to set up the meter to measure impedance.
Table 3-6: Set Up Impedance Measurement
Settings
Menu StructureZ
Main Menu -> Measurement -> LCRZ -> Z
Test frequency (single click the "Up" button toswitch)Test
voltage (double click the "Up" button toswitch)Component type and measurement result(double click the "Select" button to switch)
Secondary parameter
Figure 3-10: Display of Z measurement

Selecting Secondary Parameters
Table 3-7 describes how to set up secondary parameters from the main menu.
Table 3-7: Set Up Secondary Parameter
Settings
Available Options
Secondary Parameters

Rs-Rp, D-Q

Menu Structure
Main Menu -> Measurement ->SEC. PARAM.

Learn More On:
Page 16

If resistance mode (Rs-Rp) is selected, the meter shows Rs when circuit mode is selected as series and shows Rp
when circuit mode is selected as parallel. If dissipation or quality factor mode (D-Q) is selected, the meter shows
D when measuring capacitance and shows Q when measuring inductance.

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Selecting Circuit Mode
Table 3-8 describes how to set up circuit mode from the main menu.
Table 3-8: Set Up Circuit Mode
Settings
Available Options
Circuit Mode

Auto, Series, Parallel

Menu Structure
Main Menu -> Test PARAM. ->CIRC. Mode

Learn More On:
Page 19

If auto mode is selected, series circuit mode or parallel circuit mode will be automatically identified. See Table 39 for the series/parallel rules used.
Table 3-9 Auto Mode Series/Parallel Rules
Range of Component Under Test
Circuit Mode Selected in Auto ModeC < 500 pF
Parallel Circuit Mode
C >= 500 pF
Series Circuit Mode
L
Always Series Circuit Mode

Selecting Test Frequency
Table 3-10 describes how to set up test frequency from the main menu.
Table 3-10: Set Up Test Frequency
Settings

Available Options

Menu Structure

Test Frequency

Auto, 100Hz, 120Hz,
1kHz, 10kHz, 100kHz

Main Menu -> Test PARAM. ->Test FREQU.

Learn More On:
Page 18

NOTE
The meter is able to use auto frequency to measure capacitance approximately from 3 pF to 199 μF andinductance approximately from 1uH to 100mH. To measure capacitance or inductance out of this range, please
select proper testing frequency manually according to Table 4-3: Measurement Ranges and Optimal Testing
Frequency.

Selecting Test Voltage
Table 3-11 describes how to set up test voltage from the main menu.
Table 3-11: Set Up Test Voltage
Settings
Available Options
Test voltage

0.2Vrms, 0.5Vrms,
1.0Vrms

Menu Structure
Main Menu -> Test PARAM. ->Test VOLT.

Learn More On:
Page 19NOTE
The voltage specified in the test voltage menu is root mean square (RMS) value. When converted to peak topeak value, 0.2Vrms equals to 0.57Vp-p, 0.5Vrms equals to 1.4Vp-p and 1.0Vrms equals to 2.8Vp-p.

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ESR Measurement
The ESR measurement is used to measure the the equivalent series resistance of the capacitor, independent of
its capacitance.
Table 3-12 describes how to select ESR settings from main menu.
Table 3-12: Parameter Settings in ESR Measurement
Settings
Menu Structure
ESR Measurement
Main Menu -> Measurement -> ESR
Figure 3-11 shows a typical display in ESR measurement.
Test frequency (single click the "Up" button toswitch)Test voltage (double click the "Up" button to switch)
ESR mode and measurement result
Secondary parameter

Figure 3-11: Display of ESR Measurement
Shortcuts are provided to quickly select the settings. Below are the available shortcuts in ESR measurement.
• Single click the “Up” button to switch test frequency as Figure 3-2 shows.
• Double click the “Up” button to switch test voltage as Figure 3-3 shows.
• Press down the "Select" button for half second or so to go to the main menu screen.

DCR Measurement
The DCR measurement is used to measure the resistance of an unknown component by applying 1Vdc.
Table 3-13 describes how to select DCR settings from main menu.
Table 3-13: Parameter Settings in DCR Measurement
Settings
Menu Structure
DCR Measurement
Main Menu -> Measurement -> DCR
Figure 3-12 shows a typical display in DCR measurement.

Figure 3-12: Display of DCR Measurement
During DCR measurement, user can press down the "Select" button for half second or so to go to the main
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menu screen.

Diode Measurement
The diode measurement is used to test a diode. Connect the meter tips across the component under test. If themeter detects it is a good diode, it shows diode polarity and its forward voltage vs the current flowing throughthe diode. If a faulty condition is detected, the meter shows one of the following messages:• Open: High impedance is detected, i.e. an open circuit failure diode.
• Short: Short circuit is detected, i.e. a short circuit failure diode.
• Damage: Neither high impedance nor short circuit is detected, but the component under test doesn’tshow proper diode functions. It could be a partially damaged diode.
Table 3-14 describes how to select diode settings from main menu.
Table 3-14: Parameter Settings in Diode Measurement
Settings
Menu Structure
Diode Measurement

Main Menu -> Measurement -> Diode

Figures 3-13 shows a typical display when a good diode is detected. Figures 3-14 shows a typical display when adamaged diode is detected.

Figure 3-13: Display of Diode Measurement (Good Diode)Figure 3-14: Display of Diode Measurement (Damaged Diode)During diode measurement, user can press down the "Select" button for half second or so to go to the main
menu screen.
The LCR Pro1 Plus device is able to test LEDs. It lights up the LED and displays its electrical parameters, such aspolarity, forward voltage and forward current. When testing bi-directional LEDs, the electrical parameters will be
displayed in each direction. Figures 3-15 shows a typical display during LED testing.

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Figure 3-15: Display of LED Measurement
Figures 3-16 shows a typical display when testing an LED with built-in ESD protection diode (reverse polarity).
VF/IF indicate LED voltage and current (in forward direction). VR/IR indicate ESD protection diode voltage andcurrent (in reverse direction).

Figure 3-16: Display of LED Measurement (bi-directional LED)

Continuity Measurement
Continuity is the presence of a complete electrical path for current flow. The continuity measurement can beused to test fuses, connectors, switches and other components. Connect the meter tips across the component
under test. If the meter detects the component resistance less than the threshold, it beeps. Otherwise, it will not
beep.
Table 3-15 describes how to select continuity settings from main menu.
Table 3-15: Parameter Settings in Continuity Measurement
Settings

Available Options

Menu StructureContinuity

Continuity

Main Menu -> Measurement ->Continuity

Continuity Threshold

0.1Ω, 0.5 Ω, 1 Ω, 10Ω,
100 Ω, 1KΩ

Main Menu -> Test PARAM. ->Set CONTIN.

Learn More On:

Page 20

Figure 3-17 shows a typical display in continuity measurement. It shows test frequency and test voltage on the
top. The primary display is in the middle showing the resistance result. The continuity threshold is shown on thebottom. The continuity threshold can be increased by single clicking the "Up" button and can be decreased bysingle clicking the "Down" button.

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Test frequency
Test voltage
Resistance result
Continuity threshold

Figure 3-17: Display of Continuity Measurement

Single clicking "Up" and "Down" buttons toswitch continuity threshold

During continuity measurement, user can press down the "Select" button for half second or so to go to the main
menu screen.

NOTE
In continuity mode, the meter always uses test frequency 1KHz and test voltage 1.0Vrms for the resistancemeasurement.

Sorting Mode
The Sorting mode is used to sort out components according to the preset component type, reference value andtolerance range. In sorting mode, the meter measures the component under test and calculates the error
percentage using the measured result and the reference value. Then it compares the error percentage with thetolerance range. It beeps three times if the result is out of range. If the result is within the range, the meter
beeps once.
Table 3-16 describes how to select sorting settings from main menu.
Table 3-16: Parameter Settings in Sorting Mode
Settings
Available Options
Sorting
Sorting Tolerance

Sorting Reference

Sort R, Sort L, Sort C
0.5%, 1%, 5%, 10%,20% and 30%
View REF. VA
Input REF. R
Input REF. L
Input REF. C

Menu Structure
Main Menu -> Measurement ->Sorting
Main Menu -> Test PARAM.
-> SORT. TOLER.
Main Menu -> Test PARAM.
-> SORT. REF.

Learn More On:
Page 17
Page 21

Page 21

Figure 3-18 shows a typical display in sorting mode. It shows test frequency and test voltage on the top. The
primary display in the middle shows sorting type (R, L or C) and measurement result. The reference value andtolerance range shows underneath the primary display. The error percentage is shown on the bottom.

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Test frequency (single click the "Up" button toswitch)Test voltage (double click the "Up" button toswitch)Sorting type (R, L or C) and measurement result(double click the "Select" button to switch sortingtype)
Sorting reference value and tolerance range(single click the "Down" button to switch sorting
tolerance range)
Figure 3-18: Display of Sorting Mode

Error percentage

Shortcuts are provided to quickly select the settings. Below are the available shortcuts in sorting mode.
• Single click the “Up” button to switch test frequency as Figure 3-2 shows.
• Double click the “Up” button to switch test voltage as Figure 3-3 shows.
• Double click the “Select” button to switch sorting type as Figure 3-19 shows.
• Single click the “Down” button to switch sorting tolerance range as Figure 3-20 shows.
• Press down the "Select" button for half second or so to go to the main menu screen.

Ref R
Double Click
Select Button

Ref L
Ref C

Figure 3-19: Switch Sorting Type by Double Clicking the "Select" Button

0.5%

1%

Single Click
Down Button

5%

10%
20%
30%

Figure 3-20: Switch Sorting Tolerance Range by Single Clicking the "Down" Button

NOTE(1) Some components under test may be sensitive to certain test parameters, such as test frequency, test
voltage, etc. In order to get the desired measurement result, please set the proper test parameters before
measuring such components.
(2) After the battery is completely dead or hardware reset is performed, all the sorting reference values will be
removed. Please set these values again if necessary.
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Recording Mode
The Recording mode is used to record the maximum, minimum and average results during a series ofmeasurements. In recording mode, the meter averages all the results taken since the recording mode wasactivated. When the new measurement result goes below the recorded minimum value or above the recorded
maximum value, the meter beeps and overwrites the old value with the new value.
Table 3-17 describes how to select recording settings from main menu.
Table 3-17: Parameter Settings in Recording Mode
Settings
Available options
Recording Type

Menu structure
Main Menu -> Measurement
REC. R, REC. L, REC. C-> Recording

Learn More On:
Page 17

Figure 3-21 shows a typical display in recording mode. It shows test frequency and test voltage on the top. The
primary display in the middle shows recording type (R, L or C) and measurement result. The maximum andminimum values are alternatively displayed underneath the primary display in every 2 seconds or so. The
average value and measurement cycle are alternatively displayed on the bottom in every 2 seconds or so.
Test frequency (single click the "Up" button toswitch)Test voltage (double click the "Up" button to switch)
Recording type (R, L or C) and measurement result(double click the "Select" button to switch recording
type)
The maximum or minimum values during recording(alternatively displayed in every 2 seconds or so)

Figure 3-21: Display of Recording Mode

The average value and measurement cycles during
recording (alternatively displayed in every 2 seconds orso)

During recording measurement, user can press down the "Select" button for half second or so to go to the main
menu screen.

NOTE
In recording mode, the meter captures only stable values and updates the memory. It will not record any
overload value and will only record resistance from 0.2Ω to 10MΩ, inductance from 0.2uH to 1H andcapacitance from 3pF to 1mF. Therefore, before beginning recording, please set the proper test parameters,such as component type, test frequency, etc.

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Holding the Display
When the meter is measuring a component, the latest result can be held on the display by single clicking the“Select” button. When the hold function is active, the “Hold” annunciator is shown on the display as Figure 3-22
shows.
Test frequency
Test voltage
Component type and measurement result
Secondary parameter

Figure 3-22: Holding the Display"Hold” annunciator indicates display is on hold. Single
click the "Select" button to resume the measurement.
Single click the "Up" or "Down" button to save theon hold result

When the display is on hold, user can single click the “Select” button to resume the measurement or press down
the "Select" button for half second or so to go to the main menu screen. When a resistance, inductance or
capacitance result is on hold, the display shows the up and down arrows with the SAVE message on the bottom
left of the screen as Figure 3-22 shows. When single clicking the "Up" or "Down" button, a Value Saved screen
pops up as Figure 3-23 shows. It indicates the on hold result is successfully saved as the new sorting reference
value.

Figure 3-23: Value Saved Display

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Characteristics and Specifications
Product Characteristics
Table 4-1 Product Characteristics
Dimensions (L x W x H)
151 x 19 x 15mm
Weight30 grams

Display

0.96-inch, 128x64 OLED display

Battery

180 mAH internal lithium-ion polymer battery

Battery Life

1 day in typical measurement (1)Charging Source

USB port
USB power adapter (output voltage DC 5V ± 5%)

Charging Time

2.5 hours (typical)

Measurement Speed

0.5sec, 1sec (typical) or 2 seconds
Operating temperature from -10°C to 50°C, 0% to 80% RH
Full accuracy up to 80% RH for temperature 23°C ± 3°C-20°C to 60°C, 0% to 80% RH

Operating Environment
Storage Compliance
Safety and EMC
Compliance

IEC61000-4-2 - ESD (4 kV Contact, 8 kV Air)EN 61000-4-3 - Radiated Immunity
IEC61000-4-8 - Magnetic Field Immunity
FCC15/EN 55011/ICES-003 - Class B, Radiated Emissions
FCC15 Class B Conducted Emissions

Calibration Cycle

1 Year (Recommended)

NOTE
Battery life varies by use, configuration, and many other factors. Actual results may vary.

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Electrical Specifications
Testing Signal Specifications
Table 4-2 Testing Signal Specifications
Testing Frequency
100Hz, 120Hz, 1kHz, 10kHz, 100kHz
Testing Frequency Accuracy

50 ppm (0.005%)

Testing Signal Level

0.2Vrms/0.5Vrms/1.0Vrms, +/- 5% sine wave

Source Impedance100Ω ± 1%

Measurement Ranges and Optimal Testing Frequency
Table 4-3 Measurement Ranges and Optimal Testing Frequency
Parameter
Measurement range
Optimal testing frequency
Resistance
CapacitanceInductance

20mΩ to 10MΩ

1kHz

0.1pF to 40nF

10kHz

40nF to 40uF

1kHz

40uF to 10mF

100Hz

10nH to 1uH

100kHz1uH to 1mH

10kHz

1mH to 100mH

1kHz

100mH to 1H

100Hz

Specification Assumptions
•
•
•
•
•
•

38

Accuracy is given at 23 °C ± 5 °C, with relative humidity less than 80% RH.
The measurements are performed with necessary open and short calibration done prior to verifying themeter’s accuracy.
The accuracy of resistance measurement applies when Q < 10 and D > 0.1. Otherwise accuracy is
specified as: (AZ + Offset) * √(1 + Q2).
ESR measurement is specified according to the impedance measurement and range. The accuracy is
specified as: (AZ + Offset) * √(1 + Q2).
The accuracy of inductance measurement applies when Q > 1. When Q ≦ 1, accuracy is specified as:(AZ + Offset) * √(1 + (1/Q)2).
The accuracy of capacitance measurement applies when D ≦ 1. When D > 1, accuracy is specified as:(AZ + Offset) * √(1 + D2).

User Manual - LCR Pro1/Pro1 Plus - ver 1.07

Resistance Accuracy Specifications
Table 4-4 LCR Pro1/Pro1 Plus Resistance Accuracy Specification (at 1.0Vrms test voltage)
Accuracy = AZ + Offset
Range Resolution
100Hz
120Hz
1kHz
10kHz

100kHz

1000mΩ

0.01mΩ

0.5% + 20mΩ

0.5% + 20mΩ

0.5% + 20mΩ

0.5% + 20mΩ

1.0% + 20mΩ

10Ω

0.0001Ω

0.3% + 0.02Ω

0.3% + 0.02Ω

0.3% + 0.02Ω

0.3% + 0.02Ω

0.7% + 0.02Ω

100Ω

0.001Ω

0.2% + 0.03Ω

0.2% + 0.03Ω

0.2% + 0.03Ω

0.2% + 0.03Ω

0.5% + 0.03Ω

1000Ω

0.01Ω

0.2% + 0.3Ω

0.2% + 0.3Ω

0.2% + 0.3Ω

0.2% + 0.3Ω

0.3% + 0.3Ω

10kΩ

0.0001kΩ

0.2% + 0.003kΩ

0.2% + 0.003kΩ

0.1% + 0.003kΩ

0.2% + 0.003kΩ

0.5% + 0.003kΩ

100kΩ

0.001kΩ

0.1% + 0.05kΩ

0.1% + 0.05kΩ

0.1% + 0.05kΩ

0.1% + 0.05kΩ---

1000kΩ

0.01kΩ

0.3% + 0.5kΩ

0.3% + 0.5kΩ

0.3% + 0.5kΩ

0.3% + 0.5kΩ

---

10MΩ

0.0001MΩ

2.0% + 0.008MΩ

2.0% + 0.008MΩ

2.0% + 0.008MΩ

---

---

Table 4-5 LCR Pro1/Pro1 Plus Resistance Accuracy Specification (at 0.2Vrms and 0.5Vrms test voltage)
Accuracy = AZ + Offset
Range
Resolution
0.2Vrms
0.5Vrms
1000mΩ

0.01mΩ

1.0% + 20mΩ

1.0% + 20mΩ

10Ω

0.0001Ω

1.0% + 0.02Ω

1.0% + 0.02Ω

100Ω

0.001Ω

1.0% + 0.03Ω

1.0% + 0.03Ω

1000Ω

0.01Ω

1.0% + 0.3Ω

1.0% + 0.3Ω

10kΩ

0.0001kΩ

0.7% + 0.003kΩ

0.5% + 0.003kΩ

100kΩ

0.001kΩ

0.7% + 0.05kΩ

0.5% + 0.05kΩ

1000kΩ

0.01kΩ

1.0% + 0.5kΩ

1.0% + 0.5kΩ

10MΩ

0.0001MΩ

5.0% + 0.008MΩ

5.0% + 0.008MΩ

NOTE
Accuracy is specified at optimum test frequency as Table 4-3 indicates.

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User Manual - LCR Pro1/Pro1 Plus - ver 1.07

Inductance Accuracy Specifications
Table 4-6 LCR Pro1 Inductance Accuracy Specifications (at 1.0Vrms test voltage)
Accuracy = AL + Offset
Range Resolution
100Hz
120Hz
1kHz
10kHz

100kHz

1000nH

0.01nH

---

---

---

---

2.5% + 10nH

10uH

0.0001uH

---

---

---

1.0% + 0.01uH

2.5% + 0.02uH

100uH

0.001uH

---

---

---

0.7% + 0.03uH

2.0% + 0.2uH1000uH

0.01uH------

0.5% + 0.3uH

0.5% + 0.3uH

0.8% + 2.0uH

10mH

0.0001mH------

0.2% + 0.003mH

0.5% + 0.003mH

---

100mH

0.001mH

0.5% + 0.03mH

0.5% + 0.03mH

0.2% + 0.03mH

0.5% + 0.03mH---1000mH

0.01mH

0.2% + 0.3mH

0.2% + 0.3mH

0.5% + 0.3mH

---

---

Table 4-7 LCR Pro1 Plus Inductance Accuracy Specifications (at 1.0Vrms test voltage)
Accuracy = AL + Offset
Range Resolution
100Hz
120Hz
1kHz
10kHz

100kHz

1000nH

0.01nH

---

---

---

---

2.5% + 5nH

10uH

0.0001uH

---

---

---

1.0% + 0.01uH

2.0% + 0.01uH

100uH

0.001uH

---

---

---

0.7% + 0.03uH

2.0% + 0.2uH1000uH

0.01uH------

0.5% + 0.3uH

0.5% + 0.3uH

0.8% + 2.0uH

10mH

0.0001mH------

0.2% + 0.003mH

0.5% + 0.003mH

---

100mH

0.001mH

0.5% + 0.03mH

0.5% + 0.03mH

0.2% + 0.03mH

0.5% + 0.03mH---1000mH

0.01mH

0.2% + 0.3mH

0.2% + 0.3mH

0.5% + 0.3mH

---

---

NOTE
Specification is for LCR Pro1 HW version 1.01 or newer and LCR Pro1 Plus HW version 1.12 or newer.
Table 4-8 LCR Pro1/Pro1 Plus Inductance Accuracy Specifications (at 0.2Vrms and 0.5Vrms test voltage)
Range
Resolution
Accuracy = AL + Offset
0.2Vrms

0.5Vrms

1000nH

0.01nH

3.0% + 40nH

1.0% + 40nH

10uH

0.0001uH

3.0% + 0.04uH

1.0% + 0.04uH

100uH

0.001uH

3.0% + 0.05uH

1.0% + 0.05uH

1000uH

0.01uH

3.0% + 0.3uH

1.0% + 0.3uH

10mH

0.0001mH

2.0% + 0.003mH

1.0% + 0.003mH

100mH

0.001mH

2.0% + 0.03mH

1.0% + 0.03mH1000mH

0.01mH

2.0% + 0.3mH

1.0% + 0.3mH

NOTE
Accuracy is specified at optimum test frequency as Table 4-3 indicates.

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User Manual - LCR Pro1/Pro1 Plus - ver 1.07

Capacitance Accuracy Specifications
Table 4-9 LCR Pro1/Pro1 Plus Capacitance Accuracy Specifications (at 1.0Vrms test voltage)
Range

Resolution

Accuracy = AC + Offset
100Hz

120Hz

1kHz

10kHz

100kHz

10pF

0.0001pF

---

---

---

1.0% + 0.05pF

2.5% + 0.2pF

100pF

0.001pF

---

---

---

0.8% + 0.2pF

2.0% + 0.2pF

1000pF0.01pF------0.5% + 0.5pF

0.5% + 0.3pF

2.0% + 1.0pF

10nF

0.0001nF------

0.5% + 0.003nF

0.5% + 0.003nF

0.7% + 0.01nF

100nF

0.001nF------

0.2% + 0.03nF

0.2% + 0.03nF

1.0% + 0.1nF

1000nF0.01nF------

0.2% + 0.3nF

0.2% + 0.3nF

10uF

0.0001uF

0.3% + 0.003uF

0.3% + 0.003uF

0.2% + 0.003uF

---

---

100uF

0.001uF

0.3% + 0.03uF

0.3% + 0.03uF

0.5% + 0.03uF

---

---

1000uF

0.01uF0.5% + 0.5uF

0.5% + 0.5uF

---

---

---

10mF

0.0001mF

0.8% + 0.005mF

0.8% + 0.005mF

---

---

---

---

NOTE
The accuracy for the ceramic capacitor will be influenced depending on the dielectric constant (K) of thematerial used to make the ceramic capacitor.
Table 4-10 LCR Pro1/Pro1 Plus Capacitance Accuracy Specifications (at 0.2Vrms and 0.5Vrms test voltage)
Range
Resolution
Accuracy = AC + Offset
0.2Vrms

0.5Vrms

10pF

0.0001pF

1.5% + 0.2pF

1.0% + 0.2pF

100pF

0.001pF

1.5% + 0.2pF

1.0% + 0.2pF

1000pF0.01pF1.5% + 0.3pF

1.0% + 0.3pF

10nF

0.0001nF

1.5% + 0.003nF

1.0% + 0.003nF

100nF

0.001nF

1.5% + 0.03nF

1.0% + 0.03nF

1000nF0.01nF

1.0% + 0.3nF

1.0% + 0.3nF

10uF

0.0001uF

1.0% + 0.003uF

1.0% + 0.003uF

100uF

0.001uF

1.5% + 0.03uF

1.0% + 0.03uF

1000uF

0.01uF

2.0% + 0.05uF

1.0% + 0.05uF

10mF

0.0001mF

2.0% + 0.0005mF

2.0% + 0.0005mF

NOTE(1) The accuracy for the ceramic capacitor will be influenced depending on the dielectric constant (K) of thematerial used to make the ceramic capacitor.
(2) Accuracy is specified at optimum test frequency as Table 4-3 indicates.

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User Manual - LCR Pro1/Pro1 Plus - ver 1.07

LED Testing Accuracy Specifications
Table 4-11 LCR Pro1 Plus LED Testing Accuracy Specifications
Range
Max Test Voltage

2.95V +/- 5%

Typical Test Current

0.5mA

Voltage Accuracy

4% + 20mV

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User Manual - LCR Pro1/Pro1 Plus - ver 1.07