Agilent U1731C, U1732C, U1733C User guide

Agilent U1731C, U1732C, and U1733C Handheld LCR Meter
User’s Guide
Agilent Technologies
Notices
CAUTION
WARNING
© Agilent Technologies, Inc. 2011
Manual Part Number
U1731-90077
Edition
Second Edition, November 2011
Agilent Technologies, Inc. 5301, Stevens Creek Blvd. Santa Clara, CA 95051 USA
Warranty
The material contained in this document is provided “as is,” and is subject to change, without notice, in future editions. Further, to the maximum extent permitted by the applicable law, Agilent disclaims all war­ranties, either express or implied, with regard to this manual and any information contained herein, including but not limited to the implied warranties of merchantabil­ity and fitness for a particular purpose. Agilent 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. Should Agi­lent and the user have a separate written agreement with warranty terms covering the material in this document that conflict with these terms, the warranty terms in the separate agreement shall control.
Technology Licenses
The hardware and or software described in this document are furnished under a license and may be used or copied only in accor­dance with the terms of such license.
Restricted Rights Legend
U.S. Government Restricted Rights. Soft­ware and technical data rights granted to the federal government include only those rights customarily provided to end user cus­tomers. Agilent provides this customary commercial license in Software and techni­cal data pursuant to FAR 12.211 (Technical Data) and 12.212 (Computer Software) and, for the Department of Defense, DFARS
252.227-7015 (Technical Data - Commercial Items) and DFARS 227.7202-3 (Rights in Commercial Computer Software or Com­puter Software Documentation).
Safety Notices
A CAUTION notice denotes a haz­ard. It calls attention to an operat­ing procedure, practice, or the likes of that, if not correctly performed or adhered to, could result in dam­age to the product or loss of impor­tant data. Do not proceed beyond a CAUTION notice until the indicated conditions are fully understood and met.
A WARNING notice denotes a hazard. It calls attention to an operating procedure, practice, or the likes of that, if not correctly performed or adhered to, could result in personal injury or death. Do not proceed beyond a WARN­ING notice until the indicated conditions are fully understood and met.
II U1731C/U1732C/U1733C User’s Guide
Safety Symbols
Direct current (DC) Off (supply)
Alternating current (AC) On (supply)
Both direct and alternating current Caution, risk of electric shock
The following symbols on the instrument and in the documentation indicate precautions which must be taken to maintain safe operation of the instrument.
Three-phase alternating current
Earth (ground) terminal Caution, hot surface
Protective conductor terminal Out position of a bi-stable push control
Frame or chassis terminal In position of a bi-stable push control
Equipotentiality
Caution, risk of danger (refer to this manual for specific Warning or Caution information)
Equipment protected throughout by double insulation or reinforced insulation
U1731C/U1732C/U1733C User’s Guide III
Safety Considerations
CAUTION
Read the information below before using this instrument.
The following general safety precautions must be observed during all phases of operation, service, and repair of this instrument. Failure to comply with these precautions or with specific warnings elsewhere in this manual violates safety standards for design, manufacture, and intended use of the instrument. Agilent Technologies assumes no liability for the customer’s failure to comply with these requirements.
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 the test leads.
This device is for indoor use at altitudes of up to 2000 m.
Always use the specified battery type (listed in “Product
Characteristics" on page 74). The power for the meter is supplied
with a single standard 9 V battery. Observe the correct polarity markings before you insert the battery to ensure proper insertion of the battery in the meter.
Line operation is also possible using a 12 V AC to DC adapter. If a power adapter is selected, please be sure it meets the safety requirements of a relevant IEC standard.
IV U1731C/U1732C/U1733C User’s Guide
WARNING
• Use this meter only as specified in this manual; otherwise, the protection provided by the meter may be impaired.
• Do not use the meter if it is damaged. Before you use the meter, inspect the case. Look for cracks or missing plastic. Pay particular attention to the insulation surrounding the connectors.
• Inspect the test leads for damaged insulation or exposed metal. Check the test leads for continuity. Replace damaged test leads before you use the meter.
• Do not operate the meter around explosive gas, vapor, or wet environments.
• Never use the meter in wet conditions or when there is water on the surface. If the meter is wet, ensure that the meter is dried only by trained personnel.
• When servicing the meter, use only the specified replacement parts.
• When using the probes, keep your fingers behind the finger guards on the probes.
• Connect the common test lead before you connect the live test lead. When you disconnect the leads, disconnect the live test lead first.
U1731C/U1732C/U1733C User’s Guide V
• Remove the test leads from the meter before you open the battery cover.
• Do not operate the meter with the battery cover or portions of the cover removed or loosened.
• To avoid false readings, which may lead to possible electric shock or personal injury, replace the battery as soon as the low battery indicator appears and flashes.
Environmental Conditions
NOTE
This instrument is designed for indoor use and in an area with low condensation. The table below shows the general environmental requirements for this instrument.
Environmental conditions Requirements
Operating temperature Full accuracy from –10 °C to 55 °C
Operating humidity Full accuracy up to 80% RH (relative humidity)
Storage temperature –20 °C to 70 °C
Storage humidity 0% to 80% RH non-condensing
Altitude Up to 2000 meters
Pollution degree Pollution degree II
The U1731C/U1732C/U1733C Handheld LCR Meter complies with the following safety and EMC requirements:
IEC61010-1:2001/EN61010-1:2001 (Second Edition)
IEC 61326-1:2005/EN 61326-1:2006
Canada: ICES/NMB-001:Issue 4, June 2006
Australia/New Zealand: AS/NZS CISPR11:2004
VI U1731C/U1732C/U1733C User’s Guide
Regulatory Markings
The CE mark is a registered trademark of the European Community. This CE mark shows that the product complies with all the relevant European Legal Directives.
The C-tick mark is a registered trademark of the Spectrum Management Agency of Australia. This signifies compliance with the Australia EMC Framework regulations under the terms of the Radio Communication Act of 1992.
ICES/NMB-001 indicates that this ISM device complies with the Canadian ICES-001. Cet appareil ISM est confomre a la norme NMB-001 du Canada.
This symbol indicates the time period during which no hazardous or toxic substance elements are expected to leak or deteriorate during normal use. Forty years is the expected useful life of the product.
This instrument complies with the WEEE Directive (2002/96/EC) marking requirement. This affixed product label indicates that you must not discard this electrical or electronic product in domestic household waste.
U1731C/U1732C/U1733C User’s Guide VII
Waste Electrical and Electronic Equipment (WEEE) Directive 2002/96/EC
This instrument complies with the WEEE Directive (2002/96/EC) marking requirement. This affixed product label indicates that you must not discard this electrical or electronic product in domestic household waste.
Product Category:
With reference to the equipment types in the WEEE directive Annex 1, this instrument is classified as a “Monitoring and Control Instrument” product.
The affixed product label is as shown below.
Do not dispose in domestic household waste.
To return this unwanted instrument, contact your nearest Agilent Service Centre, or visit
www.agilent.com/environment/product
for more information.
VIII U1731C/U1732C/U1733C User’s Guide
Declaration of Conformity (DoC)
NOTE
The Declaration of Conformity (DoC) for this instrument is available on the Agilent website. You can search the DoC by its product model or description at the web address below.
http://regulations.corporate.agilent.com/DoC/search.htm
If you are unable to search for the respective DoC, please contact your local Agilent representative.
U1731C/U1732C/U1733C User’s Guide IX
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X U1731C/U1732C/U1733C User’s Guide

Table of Contents

1 Introduction
About This Manual 2
Documentation map 2 Safety notes 2
Preparing Your LCR Meter 3
Check the shipment 3 Install the battery 3 Turn on your LCR meter 5 Automatic Power-Off (APO) 6 Enabling the backlight 6 Selecting the range 7 Adjusting the tilt stand 8 Connecting the IR-USB cable 9 Power-on options 10
Your LCR Meter in Brief 11
Dimensions 11 Overview 13 Keypad 15 Display screen 18 Input terminals 22
Cleaning Your LCR Meter 23
2 Features and Functions
Making Measurements 26
Auto Identification (Ai) function 26 Measuring inductance (L) 29 Measuring capacitance (C) 31 Measuring resistance (R) 33 Measuring impedance (Z) 35
U1731C/U1732C/U1733C User’s Guide XI
Measuring dissipation factor/quality factor/phase angle
θ) 37
(D/Q/ Changing the test frequency 37 Selecting parallel/series circuit mode (P/S) 37 Setting the standard reference tolerance (Tol%) 38 Enabling ESR measurements 39 Enabling DCR measurements 39
Additional Features 40
Freezing the display (Hold) 40 Enabling the static recording mode (Rec) 40 Setting the high/low limit comparison (Limit) 42 Making relative measurements (Null) 45 Performing the open/short calibration (Cal) 46
3 Setup Options
Using the Setup Menu 50
Editing numerical values 51
Setup Menu Summary 52
Setup Menu Items 54
Changing the initial power-on behavior 54 Changing the Ai function’s phase angle condition 61 Changing the power-on limit category and set 63 Changing the user high/low limit values 64 Changing the baud rate 66 Changing the parity check 67 Changing the data bits 68 Changing the beep frequency 69 Locking the push buttons 70 Changing the auto power-off and backlight timeouts 71 Resetting the Setup items 72
XII U1731C/U1732C/U1733C User’s Guide
4 Characteristics and Specifications
Product Characteristics 74
Specification Assumptions 75
Electrical Specifications 76
Impedance/Resistance/DCR specifications 76 Capacitance specifications 77 Inductance specifications 78 Phase angle of impedance specifications 79 Dissipation/Quality factor specifications 80 Test signal specifications 81 Source impedance of impedance/resistance
measurement 82 Source impedance of capacitance measurement 83 Source impedance of inductance measurement 84
SMD Tweezer Specifications 85
Electrical characteristics 86
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XIV U1731C/U1732C/U1733C User’s Guide

List of Figures

Figure 1-1 Installing the batteries 4 Figure 1-2 Power-on button 5 Figure 1-3 Tilt-stand adjustment and IR cable connection 8 Figure 1-4 Agilent GUI Data Logger Software 9 Figure 1-5 Width dimensions 11 Figure 1-6 Height and depth dimensions 12 Figure 1-7 Front panel 13 Figure 1-8 Rear panel 14 Figure 2-1 Using the Ai function 26 Figure 2-2 Inductance measurement with Q factor 29 Figure 2-3 Measuring inductance 30 Figure 2-4 Capacitance measurement with D factor 31 Figure 2-5 Measuring capacitance 32 Figure 2-6 Resistance measurement 33 Figure 2-7 Measuring resistance 34 Figure 2-8 Impedance measurement with theta 35 Figure 2-9 Measuring impedance 36 Figure 2-10 Component above setting tolerance 38 Figure 2-11 ESR measurement with theta 39 Figure 2-12 DCR measurement 39 Figure 2-13 Using the Hold function 40 Figure 2-14 Using the Rec function 41 Figure 2-15 Using the Limit function 43 Figure 2-16 High and low limit values 44 Figure 2-17 nGo and Go indications 44 Figure 2-18 Using the Null function 45 Figure 2-19 Using the Cal function 47 Figure 2-20 Open calibration and short calibration prompts 47 Figure 3-1 Changing the power-on measurement type 55 Figure 3-2 Changing the power-on test frequency 56 Figure 3-3 Changing the power-on secondary parameter and
measurement mode for inductance (L) measurements 57
Figure 3-4 Changing the power-on secondary parameter and
measurement mode for capacitance (C)
U1731C/U1732C/U1733C User’s Guide XV
measurements 58
Figure 3-5 Changing the power-on secondary parameter and
measurement mode for resistance (R)
measurements 59
Figure 3-6 Changing the power-on open/short correction 60 Figure 3-7 Changing the Ai function’s phase angle condition 62 Figure 3-8 Changing the power-on limit and category set 63 Figure 3-9 Changing the user high/low limit values 65 Figure 3-10 Changing the baud rate 66 Figure 3-11 Changing the parity check 67 Figure 3-12 Changing the data bits 68 Figure 3-13 Changing the beep frequency 69 Figure 3-14 Locking the push buttons 70 Figure 3-15 Changing the auto power-off and backlight
timeouts 71
Figure 3-16 Resetting the Setup items 72 Figure 4-1 U1782A SMD tweezer 85
XVI U1731C/U1732C/U1733C User’s Guide

List of Tables

Tab le 1- 1 Battery level indicator 5 Tab le 1- 2 Power-on options 10 Tab le 1- 3 Front panel parts 13 Tab le 1- 4 Rear panel parts 14 Tab le 1- 5 Keypad functions 15 Tab le 1- 6 General annunciators 18 Tab le 1- 7 Measurement units display 21 Tab le 1- 8 Input terminal/socket connections 22 Tab le 2- 1 Auto identification phase angle rules 27 Tab le 2- 2 Auto identification series/parallel rules for resistance
measurements 27
Tab le 2- 3 Auto identification series/parallel rules for capacitance
measurements 28
Tab le 2- 4 Auto identification series/parallel rules for inductance
measurements 28
Tab le 2- 5 Available test frequencies 37 Tab le 2- 6 Factory default high and low limit values 42 Tab le 3- 1 Setup menu key functions 50 Tab le 3- 2 Setup menu item descriptions 52 Tab le 3- 3 Auto identification phase angle rules 61 Tab le 3- 4 Default user high/low limit values 64 Tab le 4- 1 Impedance/Resistance/DCR specifications 76 Tab le 4- 2 Capacitance specifications 77 Tab le 4- 3 Inductance specifications 78 Tab le 4- 4 Phase angle of impedance specifications 79 Tab le 4- 5 Dissipation/Quality factor specifications 80 Tab le 4- 6 Test signal specifications 81 Tab le 4- 7 Source impedance of impedance/resistance
measurement 82
Tab le 4- 8 Source impedance of capacitance measurement 83 Tab le 4- 9 Source impedance of inductance measurement 84 Tab le 4- 10 U1782A SMD tweezer electrical characteristics 86
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XVIII U1731C/U1732C/U1733C User’s Guide
U1731C/U1732C/U1733C Handheld LCR Meter User’s Guide

1 Introduction

About This Manual 2
Documentation map 2 Safety notes 2
Preparing Your LCR Meter 3
Check the shipment 3 Install the battery 3 Turn on your LCR meter 5 Automatic Power-Off (APO) 6 Enabling the backlight 6 Selecting the range 7 Adjusting the tilt stand 8 Connecting the IR-USB cable 9 Power-on options 10
Your LCR Meter in Brief 11
Dimensions 11 Overview 13 Keypad 15 Display screen 18 Input terminals 22
Cleaning Your LCR Meter 23
This chapter teaches you how to set up your LCR meter for the first time. An introduction to all the features and capabilities of the LCR meter is also given.
Agilent Technologies
1
1 Introduction

About This Manual

About This Manual
The descriptions and instructions in this manual apply to the Agilent U1731C, U1732C, and U1733C handheld LCR meters (hereafter referred to as the LCR meter).
The model U1733C appears in all illustrations.

Documentation map

The following manuals and software are available for your LCR meter. For the very latest version, please visit our website at: http://www.agilent.com/find/hhTechLib.
Check the manual revision on the first page of each manual.
• User’s Guide. This manual.
•Quick Start Guide. Printed copy for outdoor use,
included with shipment.
• Service Guide. Free download at the Agilent website.
• Agilent GUI Data Logger Software, Quick Start Guide,
and Help. Free download at the Agilent website.

Safety notes

Safety notes are used throughout this manual (see the
“Safety Notices” section for format examples). Familiarize
yourself with each of the notes and its meaning before operating your LCR meter.
More pertinent safety notes for using this product are located under the “Safety Considerations” section.
Do not proceed beyond a safety notice until the indicated conditions are fully understood and met.
2 U1731C/U1732C/U1733C User’s Guide

Preparing Your LCR Meter

CAUTION

Check the shipment

When you receive your LCR meter, check the shipment according to the following procedure.
1 Inspect the shipping container for damage. Signs of
damage may include a dented or torn shipping container or cushioning material that indicates signs of unusual stress or compacting. Save the packaging material in case the LCR meter needs to be returned.
2 Carefully remove the contents from the shipping
container, and verify that the standard accessories and your ordered options are included in the shipment according to the standard shipped items list found in the printed copy of the U1731C/U1732C/U1733C Quick Start Guide.
3 For any question or problems, refer to the Agilent contact
numbers on the back of this manual.
Introduction 1
Preparing Your LCR Meter
U1731C/U1732C/U1733C User’s Guide 3

Install the battery

Your LCR meter is powered by a single 9 V alkaline battery (included with the shipment). When you receive your LCR meter, the 9 V alkaline battery is not installed.
Use the following procedure to install the battery.
Before you proceed with the battery installation, remove all cable connections to the terminals and ensure that the LCR meter is turned OFF. Use only the battery type specified in “Product Characteristics” on page 74.
1 Introduction
WARNING
Preparing Your LCR Meter
1 Open the battery cover. Lift the tilt stand. Loosen the
screw with a suitable Phillips screwdriver and remove the battery cover as shown in Figure 1-1.
2 Insert the battery. Observe the proper battery polarity.
The terminal ends of the battery are indicated inside the battery compartment.
3 Close the battery cover. Place the battery cover back in
its original position and tighten the screw.
4 U1731C/U1732C/U1733C User’s Guide
Figure 1-1 Installing the batteries
The battery level indicator in the lower right- hand corner of the display indicates the relative condition of the battery.
Table 1- 1 describes the various battery levels the indicator
represents.
To avoid false readings, which could lead to possible electric shock or personal injury, replace the battery as soon as the low battery indicator appears. Do not discharge the battery by shorting the battery or reverse the battery polarity.
Introduction 1
CAUTION
Power-on button
Preparing Your LCR Meter
To avoid instruments being damage from battery leakage:
Always remove dead batteries immediately.
Always remove the battery and store it separately if the LCR meter
is not going to be used for a long period.
Tab l e 1 - 1 Battery level indicator
Indication Battery capacity
Full capacity
2/3 capacity
1/3 capacity
(Flashing periodically)
[1] Battery change advised. Always use the specified battery type listed in page 74.
Almost empty (less than one day)
[1]

Turn on your LCR meter

To power ON your LCR meter, press the power- on button once. The LCR meter powers up in the auto identification (Ai) mode (see page 26) when turned on for the first time.
Figure 1-2 Power-on button
U1731C/U1732C/U1733C User’s Guide 5
1 Introduction
NOTE
NOTE
Tol%
NOTE
Preparing Your LCR Meter
To power OFF your LCR meter, press the power- on button again.
You can change the power-on behavior of your LCR meter for subsequent power cycles. See “Changing the initial power-on behavior” on page 54 for more information on changing the LCR meter’s power-on setting.

Automatic Power-Off (APO)

Your LCR meter automatically turns off after 5 minutes (default) if no keys are pressed. Pressing any key will turn the LCR meter back on after it is powered off automatically.
The annunciator is shown on the bottom left of the display when the APO function is enabled.
To change the timeout period or completely disable the APO function,
refer to “Changing the auto power-off and backlight timeouts” on page 71.
If an
external power adapter is used, the APO function will be disabled.

Enabling the backlight

If viewing the display becomes difficult in low- light conditions, press for more than 1 second to activate the LCD backlight.
To conserve battery life, a user- adjustable timeout controls how long the backlight stays on. The default timeout is 30 seconds.
To change the timeout period or completely disable the backlight, refer
to “Changing the auto power-off and backlight timeouts” on page 71.
If an
6 U1731C/U1732C/U1733C User’s Guide
external power adapter is used, the backlight timeout will be disabled.

Selecting the range

Auto
Range
Auto
Range
Auto
Range
Auto
Range
Pressing switches the LCR meter between manual and autoranging. It also cycles through the available LCR meter ranges when manual ranging is enabled.
Autoranging is convenient because the LCR meter automatically selects an appropriate range for sensing and displaying each measurement. However, manual ranging results in better performance, since the LCR meter does not have to determine which range to use for each measurement.
In autorange, the LCR meter selects the lowest range to display the highest available precision (resolution) for the input signal. If manual range is already enabled, press for more than 1 second to enter the autoranging mode.
If autoranging is enabled, press to enter the manual range mode.
Each additional press of sets the LCR meter to the next higher range, unless it is already in the highest range, at which point the range switches to the lowest range.
Introduction 1
Preparing Your LCR Meter
U1731C/U1732C/U1733C User’s Guide 7
1 Introduction
To PC (host)
IR-USB cable
Preparing Your LCR Meter

Adjusting the tilt stand

To adjust the LCR meter to a 60° standing position, pull the tilt- stand outward to its maximum reach.
Figure 1-3 Tilt-stand adjustment and IR cable connection
8 U1731C/U1732C/U1733C User’s Guide

Connecting the IR-USB cable

You can use the IR communication link (IR communication port, located at the rear panel) and the Agilent GUI Data Logger software to control your LCR meter remotely, perform data logging operations, and transfer the contents of your LCR meter’s memory to a PC.
Ensure that the Agilent logo on the U5481A IR- USB cable (purchased separately) connected to the LCR meter is facing up. Firmly push the IR head into the LCR meter’s IR communication port until it snaps into place (see
Figure 1- 3).
Refer to the Agilent GUI Data Logger Software Quick Start Guide and Help for more information on the IR communication link and the Agilent GUI Data Logger software.
Introduction 1
Preparing Your LCR Meter
Figure 1-4 Agilent GUI Data Logger Software
The Agilent GUI Data Logger software and its supporting documents (Quick Start Guide and Help) are available for free download at http://www.agilent.com/find/hhTechLib.
You may purchase a U5481A IR- USB cable from an Agilent Sales Office nearest to you.
U1731C/U1732C/U1733C User’s Guide 9
1 Introduction
Rec
Hold
Auto
Range
Cal
Null
P S
ZLCR
P S
ZLCR
Preparing Your LCR Meter

Power-on options

Some options can be selected only while you turn the LCR meter on. These power- on options are listed in the table below.
To select a power- on option, press and hold the specified key in Table 1- 2 while turning the LCR meter ON ( ).
Tab l e 1 - 2 Power-on options
Key Description
Tests the LCD.
All annunciators are displayed in the LCD. Press any key to exit this mode.
Simulates the Auto Power-Off (APO) mode. Press any key to turn the LCR meter back on and resume normal operation.
Checks the firmware version.
The LCR meter’s firmware version will be shown on the primary display. Press any key to exit this mode.
Performs the Open/Short correction on all frequencies and all ranges for the User mode ( ).
[1]
Enters the Setup menu.
See Chapter 3, “Setup Options,” starting on page 49 for more information. Press and hold for more than 1 second to exit this mode.
[1] The Open/Short correction requires approximately 1.5 minutes to complete.
10 U1731C/U1732C/U1733C User’s Guide

Your LCR Meter in Brief

87 mm

Dimensions

Front view
Introduction 1
Your LCR Meter in Brief
Figure 1-5 Width dimensions
U1731C/U1732C/U1733C User’s Guide 11
1 Introduction
184 mm
41 mm
Your LCR Meter in Brief
Rear and side view
Figure 1-6 Height and depth dimensions
12 U1731C/U1732C/U1733C User’s Guide

Overview

1
2
3
Introduction 1
Your LCR Meter in Brief
Front panel
The front panel parts of your LCR meter are described in this section. Click the respective “Learn more” pages in
Table 1- 3 for more information on each part.
Figure 1-7 Front panel
Tab l e 1 - 3 Front panel parts
Legend Description Learn more on:
U1731C/U1732C/U1733C User’s Guide 13
1 Display screen page 18
2 Keypad page 15
3 Input terminals and sockets page 22
1 Introduction
1
2
3
4
Your LCR Meter in Brief
Rear panel
The rear panel parts of your LCR meter are described in this section. Click the respective “Learn more” pages in
Table 1- 4 for more information on each part.
Figure 1-8 Rear panel
Tab l e 1 - 4 Rear panel parts
Legend Description Learn more on:
1 IR communication port page 9
2 Tilt stand page 8
3 Battery cover (lift the tilt stand for access) page 3
4 External power adapter input jack
[1] The external power adapter input jack requires an input voltage of +12 VDC.
[1]
-
14 U1731C/U1732C/U1733C User’s Guide

Keypad

ESR
Rec
Hold
Save
Rec
Hold
Rec
Hold
Rec
Hold
Rec
Hold
Tab l e 1 - 5 Keypad functions
Introduction 1
Your LCR Meter in Brief
The operation of each key is explained below. Pressing a key enables a function, displays a related annunciator, and emits a beep.
Each key operation of the U1731C/U1732C/U1733C keypad (shown in Figure 1-7) is described in Table 1- 5. Click the respective “Learn more” pages in Table 1- 5 for more information on each function.
Legend
Function when pressed for:
Less than 1 second More than 1 second
Learn
more on:
Turns the LCR meter on or off. - page 5
Enables or disables the ESR (equivalent
Starts or stops the auto identification mode.
Press again while the annunciator is shown to exit this mode.
series resistance) mode.
Press for more than 1 second to exit this mode. The LCR meter will return to
page 26
capacitance measurement by default.
Holds or releases the present reading on the display.
Press again to update the reading automatically once it is stable.
Press for more than 1 second to exit this mode.
Starts or stops the static recording mode.
Press again to cycle through the maximum (Max), minimum (Min), average (Avg), and present (MaxMinAvg) readings.
Press for more than 1 second to exit this mode.
page 40
U1731C/U1732C/U1733C User’s Guide 15
1 Introduction
Limit
DQO
Limit
DQO
Auto
Range
Freq.
Rec
Hold
Limit
DQO
DCR
Freq.
Freq.
Freq.
Auto
Range
Auto
Range
P S
ZLCR
Tol%
Tol%
Tol%
Your LCR Meter in Brief
Tab l e 1 - 5 Keypad functions (continued)
Legend
Function when pressed for:
Less than 1 second More than 1 second
Switches between the dissipation factor (D), quality factor (Q), or phase angle (θ) measurement.
Selects a test frequency.
Press again to cycle through the various test frequencies (100 Hz to 100 kHz).
Disables autoranging and sets a manual range.
Press again to cycle through each available measurement range.
Learn
more on:
Enables or disables the limit comparison mode.
While the annunciator is flashing,
press and again to toggle
between high (H) or low (L) limits, then
use the and keys to select a
high/low limit set (1 to 16).
Press to start the limit sorting (with
page 37
and
page 42
the selected limit set), or
If no activity is detected after 3 seconds, the limit comparison will begin.
Press for more than 1 second to exit this mode.
U1733C only: Enables or disables the DCR (direct current resistance) mode.
Press for more than 1 second to exit
page 37
this mode. The LCR meter will return to inductance measurement by default.
Enables autoranging. page 7
Switches between impedance (Z), inductance (L), capacitance (C), and resistance (R) measurement.
Toggles between parallel and series circuit mode.
page 27 to
page 35
and
page 37
Sets the tolerance mode.
Connect/insert an appropriate component into the input terminals/sockets and press
to set the value shown on the secondary display as the standard reference value.
Press again to cycle through the
Turns the LCD backlight on for 15 seconds (default) or off.
To change the backlight timeout refer to
“Changing the auto power-off and backlight timeouts” on page 71.
page 38
and page 6
various tolerance values (1% to 20%).
16 U1731C/U1732C/U1733C User’s Guide
Tab l e 1 - 5 Keypad functions (continued)
Cal
Null
Cal
Null
Cal
Null
Introduction 1
Your LCR Meter in Brief
Legend
Function when pressed for:
Less than 1 second More than 1 second
Sets the null/relative mode.
The displayed value is saved as a reference to be subtracted from subsequent measurements.
Press again to cancel the null mode.
Enters the open/short calibration mode for the selected range and test frequency.
Follow the prompts on the screen (open or short connector) and press to begin the calibration process.
The LCR meter will return to normal display when the calibration is complete.
Learn
more on:
page 45
and
page 46
U1731C/U1732C/U1733C User’s Guide 17
1 Introduction
Your LCR Meter in Brief

Display screen

The function that each display annunciator of your LCR meter is associated to is described in this section. See also
“Measurement units” on page 21 for a list of available
measurement signs and notations.
General display annunciators
The general display annunciators of your LCR meter are described in the table below.
Each display annunciator of the U1731C/U1732C/U1733C display screen (shown in Figure 1- 7) is described in
Table 1- 6. Click the respective “Learn more” pages in Table 1- 6 for more information on each annunciator.
Tab l e 1 - 6 General annunciators
Legend Description Learn more on:
Remote control via PC indicator page 9
Equivalent series resistance indicator
Resistance measurement by direct current indicator
LCR meter using open/short correction settings by factory
LCR meter using open/short correction setting by user
Measuring frequency of test signal is 100 Hz
Measuring frequency of test signal is 120 Hz
Measuring frequency of test signal is 1 kHz
Measuring frequency of test signal is 10 kHz
Measuring frequency of test signal is 100 kHz
page 46
page 37
18 U1731C/U1732C/U1733C User’s Guide
Introduction 1
Your LCR Meter in Brief
Tab l e 1 - 6 General annunciators (continued)
Legend Description Learn more on:
Tolerance mode indicator for sorting L, C, or R
Tolerance set to 1% for sorting capacitance
Tolerance set to 5% for sorting capacitance
Tolerance set to 10% for sorting capacitance
Tolerance set to 20% for sorting capacitance
Data hold mode indicator page 40
Audible alert indicator for tolerance or limit mode
Dissipation factor indicator
Quality factor indicator
Phase angle of impedance indicator
Secondary display -
Measurement units for the secondary display page 21
Impedance measurement indicator page 35
page 38
page 69
page 37
Inductance measurement indicator page 29
Capacitance measurement indicator page 31
Resistance measurement indicator page 33
U1731C/U1732C/U1733C User’s Guide 19
1 Introduction
Your LCR Meter in Brief
Tab l e 1 - 6 General annunciators (continued)
Legend Description Learn more on:
Present reading shown on primary display
Maximum reading shown on primary display
page 40
Minimum reading shown on primary display
Averaged reading shown on primary display
Relative (Null) indicator page 45
Autoranging indicator page 7
Limit mode indicator
Reading out of HI limit
Reading out of LO limit
Auto power-off indicator page 6
Primary display -
Measurement units for the primary display page 21
Parallel mode indicator
Series mode indicator
Battery capacity indicator page 5
page 42
page 37
20 U1731C/U1732C/U1733C User’s Guide
Introduction 1
Your LCR Meter in Brief
Measurement units
The available signs and notations for each measurement function in your LCR meter are described in Table 1- 7. The units listed below are applicable to the primary display measurements of your LCR meter.
Tab l e 1 - 7 Measurement units display
Sign/Notation Description
M Mega 1E+06 (1000000)
k kilo 1E+03 (1000)
m milli 1E–03 (0.001)
μ micro 1E–06 (0.000001)
n nano 1E–09 (0.000000001)
p pico 1E–12 (0.000000000001)
° Degree, unit for phase angle measurement
% Percentage, unit for tolerance measurement
μH, mH, H Henry, units for inductance measurement
pF, nF, μF, mF Farad, units for capacitance measurement
Ω, kΩ, MΩ Ohm, units for resistance and impedance measurement
kHz, Hz Hertz, units for frequency measurement
U1731C/U1732C/U1733C User’s Guide 21
1 Introduction
WARNING
+
-
GUARD
Your LCR Meter in Brief

Input terminals

The terminal and socket connections of your LCR meter are described in the table below.
To avoid damaging this instrument, do not exceed the input limit. Do not apply voltage to input terminals. Discharge the capacitor before testing.
Tab l e 1 - 8 Input terminal/socket connections
Input
terminal/socket
Description
Positive terminal/component socket
Negative terminal/component socket
Guard terminal/component socket
22 U1731C/U1732C/U1733C User’s Guide

Cleaning Your LCR Meter

WARNING
To avoid electrical shock or damage to the LCR meter, ensure that the insides of the casing stay dry at all times.
Dirt or moisture in the terminals can distort readings. Follow the steps below to clean your LCR meter.
1 Turn the LCR meter off and remove the test leads.
2 Turn the LCR meter over and shake out any dirt that may
3 Wipe the case with a damp cloth and mild detergent — do
4 Wipe the contacts in each terminal with a clean swab
Introduction 1
Cleaning Your LCR Meter
have accumulated in the terminals.
not use abrasives or solvents.
dipped in alcohol.
U1731C/U1732C/U1733C User’s Guide 23
1 Introduction
Cleaning Your LCR Meter
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24 U1731C/U1732C/U1733C User’s Guide
U1731C/U1732C/U1733C Handheld LCR Meter User’s Guide

2 Features and Functions

Making Measurements 26
Auto Identification (Ai) function 26 Measuring inductance (L) 29 Measuring capacitance (C) 31 Measuring resistance (R) 33 Measuring impedance (Z) 35 Measuring dissipation factor/quality factor/phase angle (D/Q/θ) 37 Changing the test frequency 37 Selecting parallel/series circuit mode (P/S) 37 Setting the standard reference tolerance (Tol%) 38 Enabling ESR measurements 39 Enabling DCR measurements 39
Additional Features 40
Freezing the display (Hold) 40 Enabling the static recording mode (Rec) 40 Setting the high/low limit comparison (Limit) 42 Making relative measurements (Null) 45 Performing the open/short calibration (Cal) 46
This chapter provides detailed information on the features and functions that are available in your LCR meter.
Agilent Technologies
25
2 Features and Functions
NOTE

Making Measurements

Making Measurements

Auto Identification (Ai) function

Press to automatically identify the appropriate measurement required for the device- under- test (DUT).
Figure 2-1 Using the Ai function
The annunciator will f lash while the LCR meter identifies the DUT, and
selects an appropriate measurement in the primary
display (L, C, or R) and secondary display (D, Q, or θ),
selects an appropriate range, and
selects an appropriate measuring mode (series or
parallel).
The Ai function helps to identify L, C, and R measurements automatically according to the angle of impedance detected in the DUT. See Table 2-1 for the phase angle rules.
The default phase angle condition is set to 10°. You can change this angle in the Setup menu from 5° to 45°. See “Changing the Ai function’s phase
angle condition” on page 61 for more information.
26 U1731C/U1732C/U1733C User’s Guide
The measurement mode (series or parallel) will be automatically identified from the autoranging direction.
Table 2- 2, Table 2- 3, and Table 2- 4 list down the
series/parallel rules used.
Tab l e 2 - 1 Auto identification phase angle rules
Features and Functions 2
Making Measurements
Phase angle
Set < θ < +Set R θ
θ ≥ +Set LQ
θ ≤ –Set CD
[1] Where ±Set is the phase angle selected.
[1]
Primary display Secondary display
Tab l e 2 - 2 Auto identification series/parallel rules for resistance measurements
Resistance range Down range Up range
200 MΩ Parallel Parallel
20 MΩ Parallel Parallel
2000 kΩ Parallel Parallel
200 kΩ Parallel Parallel
20 kΩ Parallel Series
2000 Ω Parallel Series
200 Ω Parallel Series
20 Ω Series Series
2 Ω Series Series
U1731C/U1732C/U1733C User’s Guide 27
2 Features and Functions
Making Measurements
Tab l e 2 - 3 Auto identification series/parallel rules for capacitance measurements
Range
20 mFSeriesSeriesSeriesSeries------
2000 μFSeriesSeriesSeriesSeriesSeriesSeries----
200 μF Series Series Series Series Series Series Series Series - -
20 μF Series Parallel Series Parallel Series Series Series Series Series Series
2000 nF Series Parallel Series Parallel Series Parallel Series Series Series Series
200 nF Series Parallel Series Parallel Series Parallel Series Parallel Series Series
20 nF Parallel Parallel Parallel Parallel Series Parallel Series Parallel Series Parallel
2000 pF Parallel Parallel Parallel Parallel Parallel Parallel Series Parallel Series Parallel
200 pF ----ParallelParallelParallelParallelSeriesParallel
20 pF ------ParallelParallelParallelParallel
100 Hz 120 Hz 1 kHz 10 kHz 100 kHz
Down Up Down Up Down Up Down Up Down Up
Tab l e 2 - 4 Auto identification series/parallel rules for inductance measurements
Range
100 Hz 120 Hz 1 kHz 10 kHz 100 kHz
Down Up Down Up Down Up Down Up Down Up
2000 HParallelParallelParallelParallelParallelParallel----
200 H Parallel Parallel Parallel Parallel Parallel Parallel Parallel Parallel - -
20 H Parallel Series Parallel Series Parallel Parallel Parallel Parallel Parallel Parallel
2000 mH Parallel Series Parallel Series Parallel Series Parallel Parallel Parallel Parallel
200 mH Parallel Series Parallel Series Parallel Series Parallel Series Parallel Parallel
20 mH Series Series Series Series Parallel Series Parallel Series Parallel Series
2000 μH Series Series Series Series Series Series Parallel Series Parallel Series
200 μH ----SeriesSeriesSeriesSeriesParallelSeries
20 μH ------SeriesSeriesSeriesSeries
28 U1731C/U1732C/U1733C User’s Guide

Measuring inductance (L)

NOTE
Freq.
P S
ZLCR
Limit
DQO
Set up your LCR meter to measure inductance as shown in
Figure 2- 3.
It is recommended that you perform the Open/Short calibration (see
page 46) before testing to achieve optimum precision for all inductance,
capacitance, and resistance measurements at either the highest or lowest ranges.
1 Press to power on the LCR meter.
2 Press to select a suitable test frequency, and
i press to enable the auto identification function; or
ii alternatively press to select inductance
measurement.
Features and Functions 2
Making Measurements
Figure 2-2 Inductance measurement with Q factor
3 Insert an inductor into the component socket or connect
the test clip to the component leads as required.
4 Press to change the secondary display measurement
(D, Q, or θ).
5 Read the displays.
U1731C/U1732C/U1733C User’s Guide 29
2 Features and Functions
Induct or
3
2
P S
ZLCR
>
Freq.
1
>
Freq.
OR
OR
Surface Mount
Device (SMD)
SMD Tweezer
Making Measurements
Figure 2-3 Measuring inductance
30 U1731C/U1732C/U1733C User’s Guide

Measuring capacitance (C)

WARNING
Freq.
P S
ZLCR
Limit
DQO
Set up your LCR meter to measure capacitance as shown in
Figure 2- 5.
To avoid electrical hazards, discharge the capacitor to be tested before measuring.
1 Press to power on the LCR meter.
2 Press to select a suitable test frequency, and
i press to enable the auto identification function; or
ii alternatively press to select capacitance
measurement.
Features and Functions 2
Making Measurements
Figure 2-4 Capacitance measurement with D factor
3 Insert a capacitor into the component socket or connect
the test clip to the component leads as required.
4 Press to change the secondary display measurement
(D, Q, or θ).
5 Read the displays.
U1731C/U1732C/U1733C User’s Guide 31
2 Features and Functions
Capacitor
3
2
P S
ZLCR
>
Freq.
1
>
Freq.
OR
OR
Surface Mount
Device (SMD)
SMD Tweezer
Making Measurements
Figure 2-5 Measuring capacitance
32 U1731C/U1732C/U1733C User’s Guide

Measuring resistance (R)

CAUTION
Freq.
P S
ZLCR
Set up your LCR meter to measure resistance as shown in
Figure 2- 7.
To avoid possible damage to your LCR meter or to the equipment under test, disconnect the circuit power and discharge all high-voltage capacitors before measuring resistance.
1 Press to power on the LCR meter.
2 Press to select a suitable test frequency, and
i press to enable the auto identification function; or
ii alternatively press to select resistance
measurement.
Features and Functions 2
Making Measurements
Figure 2-6 Resistance measurement
3 Insert a resistor into the component socket or connect the
test clip to the component leads as required.
4 Read the display.
U1731C/U1732C/U1733C User’s Guide 33
2 Features and Functions
Resistor
3
2
P S
ZLCR
>
Freq.
1
>
Freq.
OR
OR
Surface Mount
Device (SMD)
SMD Tweezer
Making Measurements
Figure 2-7 Measuring resistance
34 U1731C/U1732C/U1733C User’s Guide

Measuring impedance (Z)

NOTE
Freq.
P S
ZLCR
All circuit components, resistors, capacitors, and inductors have parasitic components. These include, for example, unwanted resistance in capacitors, unwanted capacitance in inductors, and unwanted inductance in resistors. Thus, simple components should be modeled as complex impedances.
Set up your LCR meter to measure impedance as shown in
Figure 2- 9.
To learn more about impedance measurement theories, refer to the Impedance Measurement Handbook. This document can be downloaded from our website at http://www.agilent.com/find/lcrmeters.
1 Press to power on the LCR meter.
2 Press to select a suitable test frequency, and press
to select impedance measurement.
Features and Functions 2
Making Measurements
Figure 2-8 Impedance measurement with theta
3 Insert a component into the component socket or connect
the test clip to the component leads as required.
U1731C/U1732C/U1733C User’s Guide 35
2 Features and Functions
Limit
DQO
3
Device-Under-Test
(DUT )
2
P S
ZLCR
>
Freq.
OR
Surface Mount
Device (SMD)
SMD Tweezer
1
Making Measurements
4 Press to change the secondary display measurement
(D, Q, or θ).
5 Read the displays.
Figure 2-9 Measuring impedance
36 U1731C/U1732C/U1733C User’s Guide
Features and Functions 2
Limit
DQO
Freq.
P S
ZLCR
Making Measurements
Measuring dissipation factor/quality factor/phase angle (D/Q/θ)
The dissipation factor (D), quality factor (Q), and phase angle (θ) values can be displayed interchangeably by pressing the key when the LCR meter is set to the inductance, capacitance, or impedance measurement mode.
This setting is not applicable for DCR measurement.

Changing the test frequency

The test frequency is set to 1 kHz by default. Press the key to select a desired test frequency.
Tab l e 2 - 5 Available test frequencies
Model 100 Hz 120 Hz 1 kHz 10 kHz 100 kHz
U1731C
U1732C
U1733C
✔✔✔
✔✔✔✔
✔✔✔✔✔
--
-

Selecting parallel/series circuit mode (P/S)

The LCR meter can display parallel ( ) or series ( ) mode data for all ranges.
Press the key for more than 1 second to toggle the parallel and series mode.
Series mode is set as the default setting. You can, however, change this power-on behavior in the Setup menu. See
“Changing the initial power-on behavior” on page 54 for
more information on how to change the default measurement mode (parallel or series) for subsequent power cycles.
U1731C/U1732C/U1733C User’s Guide 37
2 Features and Functions
Tol%
Tol%
NOTE
Making Measurements

Setting the standard reference tolerance (Tol%)

The tolerance ranges available are 1%, 5%, 10%, and 20%.
To enable the tolerance mode, insert an appropriate component as a standard value into the component socket or connect the test clip to the component leads, then press the
key to set this value as the standard reference tolerance.
Similarly, any value which appears on the display, such as Hold or Max/Min/Avg (Rec), can be used as a standard value to sort components. Press again to cycle through 1%, 5%, 10%, and 20% tolerance as desired.
This function is designed for convenient component sorting. The beeper will beep three times whenever the component under test exceeds the setting tolerance. Conversely, when the beeper beeps once, this indicates that the component is within the setting tolerance.
Figure 2-10 Component above setting tolerance
The tolerance mode cannot be activated if is shown on the display
or when the tested capacitance value is below 50 counts.
Tolerance mode is only available in manual ranging; therefore, activation while in autoranging will automatically set the LCR meter to manual ranging.
38 U1731C/U1732C/U1733C User’s Guide

Enabling ESR measurements

Freq.
Freq.
Press for more than 1 second to select the ESR measurement. Use the ESR measurement to measure the equivalent series resistance of the capacitor, independent of its capacitance.
Figure 2-11 ESR measurement with theta
Press for more than 1 second to exit this mode.
Features and Functions 2
Making Measurements

Enabling DCR measurements

Press for more than 1 second to select the DCR measurement. The DCR measurement measures the resistance of an unknown component by 1 VDC.
Figure 2-12 DCR measurement
Press for more than 1 second to exit this mode.
U1731C/U1732C/U1733C User’s Guide 39
2 Features and Functions
Rec
Hold
Rec
Hold
Rec
Hold
Rec
Hold

Additional Features

Additional Features

Freezing the display (Hold)

To freeze the display for any function, press the key. The annunciator is shown on the display while the Hold function is active.
Figure 2-13 Using the Hold function
Press again to update the reading automatically once it is stable. The annunciator flashes while waiting for the reading to be stable.
Press for more than 1 second to release the Hold function.

Enabling the static recording mode (Rec)

The static recording mode stores the maximum, minimum, and average input values during a series of measurements in the LCR meter’s memory.
40 U1731C/U1732C/U1733C User’s Guide
Features and Functions 2
Rec
Hold
Rec
Hold
> 1 s
Rec
Hold
Rec
Hold
Additional Features
When the input goes below the recorded minimum value or above the recorded maximum value, the LCR meter beeps and records the new value. The LCR meter also calculates an average of all readings taken since the static recording mode was activated.
From the LCR meter’s display, you can view the following statistical data for any set of readings:
Max: highest reading since the static recording mode was enabled
Min: lowest reading since the static recording mode was enabled
Avg: average or mean of all readings since the static recording mode was enabled
MaxMinAvg: present reading (actual input signal value)
Press the key for more than 1 second to enter the static recording mode.
Figure 2-14 Using the Rec function
Press again to cycle through the Max, Min, Avg, or MaxMinAvg (present) input values.
To exit this mode, press and hold the key for more than 1 second.
U1731C/U1732C/U1733C User’s Guide 41
2 Features and Functions
NOTE
Additional Features
Static recording captures only stable values and updates the memory; it will not record any overload ( ) value for any of the LCR functions. In addition, the LCR meter will not record values below 50 counts in capacitance measurement.
Static recording is only available in manual ranging; therefore, activation while in autoranging will automatically set the LCR meter to manual ranging.

Setting the high/low limit comparison (Limit)

The high and low limit comparison function helps you to sort components easily. There are 32 limit sets available (16 fixed factory sets, and 16 variable user sets).
The LCR meter will use the factory sets by default. You can set the LCR meter to use the user sets upon start-up from the Setup menu. See “Changing the power- on limit category
and set” on page 63 for more information.
Table 2- 6 shows the factory default limit values for each set.
Tab l e 2 - 6 Factory default high and low limit values
Set High limit (H) Low limit (L)
F01 1000 900
F02 1200 1080
F03 1500 1350
F04 1800 1620
F05 2200 1980
F06 2700 2430
F07 3300 2970
F08 3900 3510
F09 4700 4230
42 U1731C/U1732C/U1733C User’s Guide
Features and Functions 2
NOTE
Limit
DQO
Limit
DQO
> 1 s
Additional Features
Tab l e 2 - 6 Factory default high and low limit values (continued)
Set High limit (H) Low limit (L)
F10 5600 5040
F11 6800 6120
F12 8200 7380
F13 10000 9000
F14 12000 10800
F15 15000 13500
F16 18000 16200
The default values of the variable user sets are set to the same as the fixed user sets. Use the Setup menu to change the high and low limits for each set. See “Changing the user high/low limit values” on page 64 for more information.
Press the key for more than 1 second to activate the high/low limit mode. The last- known set number (H## or L##) will be indicated in the secondary display.
Figure 2-15 Using the Limit function
U1731C/U1732C/U1733C User’s Guide 43
2 Features and Functions
Freq.
Limit
DQO
Auto
Range
Rec
Hold
Additional Features
While the annunciator is flashing, use the or key to select an appropriate limit set.
You may press or again to toggle between the high (H) or low (L) values shown on the primary display.
Figure 2-16 High and low limit values
Press while the annunciator is flashing to start the comparison. (If no activity is detected after 3 seconds, the comparison will also begin.)
The LCR meter beeps three times and displays in the secondary display if the reading is greater ( ) than the high limit or lesser ( ) than the low limit.
If the reading is within the high and low limits, the meter beeps once and displays in the secondary display.
Figure 2-17 nGo and Go indications
The limit set used in the comparison is displayed after the
/ indication.
44 U1731C/U1732C/U1733C User’s Guide
Press and hold for more than 1 second to exit this
Limit
DQO
Cal
Null
Cal
Null
mode.

Making relative measurements (Null)

When making relative measurements, also called null, each reading is the difference between a stored (selected or measured) relative value and the input signal.
One possible application is to increase the accuracy of a resistance measurement by nulling the test lead resistance (test leads shorted). Nulling the leads is also particularly important prior to making capacitance measurements (test leads open).
Press the key to enter the relative mode and store the display reading as a reference value. The LCR meter will then display all subsequent readings relative to the reference value.
Features and Functions 2
Additional Features
Figure 2-18 Using the Null function
U1731C/U1732C/U1733C User’s Guide 45
2 Features and Functions
Cal
Null
NOTE
Cal
Null
Additional Features
The annunciator is shown on the display while the relative mode is active. Press again to exit the relative mode.
The relative mode cannot be activated if the display value is .
Relative mode is only available in manual ranging; therefore, activation
while in autoranging will automatically set the LCR meter to manual ranging.
The relative mode cannot be activated if the LCR meter is set at auto-ranging with data hold activated.

Performing the open/short calibration (Cal)

The corrections for the and are pre-stored in the LCR meter. They are both calibrated at the terminal ends.
You can set the LCR meter to start up using the or open/short correction from the Setup menu (see
page 60).
There are three types of open/short corrections available:
OS- Factory: Re- calibration requires you to enter the LCR meter’s calibration mode (security code protected)
OS- User: Re- calibration is possible through the power- on options (see page 10).
Quick range: Single range and frequency as required by pressing and holding the key for more than 1 second
The calibration function is available for fixed measurement ranges.
The correction calibrates the meter's internal parameters as well as external connector residues for further measuring. This action will help you to correct the influence for temporary uses. It is highly recommended that you calibrate extremely high or low ranges for L, C, and R measurements before making precision measurements.
46 U1731C/U1732C/U1733C User’s Guide
Features and Functions 2
Cal
Null
Cal
Null
> 1 s
Cal
Null
Additional Features
Press and hold the key for more than 1 second to enter calibration mode for the selected frequency and range.
Figure 2-19 Using the Cal function
Calibration prompts will be shown on the display. Follow the prompts for open connector (OPn) or short connector (SHor) connection and press the key.
Figure 2-20 Open calibration and short calibration prompts
After calibration is completed, the LCR meter will be restored to normal display and ready for normal usage.
U1731C/U1732C/U1733C User’s Guide 47
2 Features and Functions
Additional Features
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48 U1731C/U1732C/U1733C User’s Guide
U1731C/U1732C/U1733C Handheld LCR Meter User’s Guide

3 Setup Options

Using the Setup Menu 50
Editing numerical values 51 Setup Menu Summary 52 Setup Menu Items 54
Changing the initial power-on behavior 54
Changing the Ai function’s phase angle condition 61
Changing the power-on limit category and set 63
Changing the user high/low limit values 64
Changing the baud rate 66
Changing the parity check 67
Changing the data bits 68
Changing the beep frequency 69
Locking the push buttons 70
Changing the auto power-off and backlight timeouts 71
Resetting the Setup items 72
The following chapter describes how to change the preset features of your LCR meter.
Agilent Technologies
49
3Setup Options
P S
ZLCR
P S
ZLCR
P S
ZLCR
Limit
DQO
Auto
Range
Limit
DQO
Auto
Range
Freq.
Freq.
Freq.
Rec
Hold
Save
P S
ZLCR
Rec
Hold
P S
ZLCR

Using the Setup Menu

Using the Setup Menu
The Setup menu allows you to change a number of nonvolatile preset features. Modifying these settings affects the general operation of your LCR meter across several functions. Select a setting to edit to perform one of the following:
Switch between two values, such as on or off.
Cycle through multiple values from a predefined list.
Decrease or increase a numerical value within a fixed
range.
The contents of the Setup menu are summarized in
Table 3- 2 on page 52.
Tab l e 3 - 1 Setup menu key functions
Legend Description
Press and hold while turning the LCR meter ON ( ) to access the Setup menu.
Press and hold for more than 1 second to exit this mode.
Press or to step through the menu items.
Press or at each menu item to change the preset settings. The menu item (in the secondary display) will flash to indicate that you can now change the menu item values.
Press or again to switch between two values, to cycle through multiple values from a list, or to decrease or increase a numerical value.
While the menu item is flashing, press to save your changes.
While the menu item is flashing, press to discard your changes.
50 U1731C/U1732C/U1733C User’s Guide

Editing numerical values

Limit
DQO
Auto
Range
Limit
DQO
Auto
Range
Freq.
Freq.
Rec
Hold
P S
ZLCR
When editing numerical values, use the and to position the cursor on a numerical digit.
Press to move the cursor to the left, and
Press to move the cursor to the right.
When the cursor is positioned over a digit, use the and
keys to change the numerical digit.
Press to increment the digit, and
Press to decrement the digit.
When you have completed your changes, save the new numerical value by pressing . (Or alternatively, if you wish to discard the changes you made press, .)
Setup Options 3
Using the Setup Menu
U1731C/U1732C/U1733C User’s Guide 51
3Setup Options

Setup Menu Summary

Setup Menu Summary
The Setup menu items are summarized in the table below. Click the respective “Learn more” pages for more information on each menu item.
Tab l e 3 - 2 Setup menu item descriptions
Legend Available settings Description Learn more on:
Ai, Z, L, C, R, ESR, or DCR
100 Hz, 120 Hz, 1 kHz,
10 kHz, or 100 kHz
D, Q, or θ and P or S
D, Q, or θ and P or S
D, Q, or θ and P or S
FACt or USEr
05° to 45
°
Set the measurement type that the LCR meter powers up in. Default is the auto identification (Ai) mode.
Set the test frequency that the LCR meter powers up in. Default is 1 kHz.
Set the inductance (L) secondary parameter and measurement mode that the LCR meter powers up in. Default is quality factor (Q) and series (S).
Set the capacitance (C) secondary parameter and measurement mode that the LCR meter powers up in. Default is dissipation factor (D) and series (S).
Set the resistance (R) secondary parameter and measurement mode that the LCR meter powers up in. Default is phase angle (θ) and series (S).
Set the open/short correction mode that the LCR meter powers up in. Default is factory (FACt).
Set the phase angle condition for the auto identification (Ai) mode. Default is 10
°.
page 54
page 56
page 57
page 58
page 59
page 60
page 61
Ft01 to Ft16 or Ur01 to Ur16
Set the limit category (factory or user) and set (01 to 16) that the LCR meter powers up in. Default is Ft01.
page 63
52 U1731C/U1732C/U1733C User’s Guide
Setup Options 3
Setup Menu Summary
Tab l e 3 - 2 Setup menu item descriptions (continued)
Legend Available settings Description Learn more on:
H01 to H16 or L01 to L16
0 to 19999
9600 or 19200
En, nonE, or odd
7bit or 8bit
2000 Hz, 3000 Hz, 4000 Hz,
or oFF
oFF or on Lock the LCR meter’s push buttons. Default is off. page 70
01 to 99 mins or oFF
01 to 99 s or oFF
Set the high and low limits for each variable user set.
See Table 3-4
Set the baud rate for remote communication with a PC (9600 or 19200). Default is 9600.
Set the parity bit for remote communication with a PC (even, none, or odd). Default is none.
Set the data bit length for remote communication with a PC (7-bit or 8-bit). Default is 8-bit.
Set the LCR meter’s beep frequency (2000 Hz, 3000 Hz, 4000 Hz, or off). Default is 4000 Hz.
Set the auto power-off timeout period from 1 to 99 minutes (1 hour, 39 minutes) or off. Default is 5 minutes.
Set the LCD backlight timeout period from 1 to 99 seconds (1 minute, 39 seconds) or off. Default is 30 seconds.
on page 64 for the user default values.
page 64
page 66
page 67
page 68
page 69
page 71
dEFA Reset the LCR meter to its factory default settings. page 72
U1731C/U1732C/U1733C User’s Guide 53
3Setup Options

Setup Menu Items

Setup Menu Items

Changing the initial power-on behavior

You can change the power- on behavior of your LCR meter for subsequent power cycles.
Parameter Range Default setting
Pon-tYPE Ai, Z, L, C, R, ESR, or DCR Ai
Pon-FrEq
Pon-AUto (L)
Pon-AUto (C)
Pon-AUto (R)
Pon-oSC FACt or USEr FACt
100 Hz, 120 Hz, 1 kHz, 10 kHz, or 100 kHz
D, Q, or °θ
Parallel or Series
D, Q, or °θ
Parallel or Series
D, Q, or °θ
Parallel or Series
1 kHz
Q
Series
D
Series
°θ
Series
Changing the power-on measurement type
Use this Setup item to change the LCR meter’s initial measurement type. You can set the LCR meter to start up in the
auto identification mode (Ai),
impedance measurement (Z),
inductance measurement (L),
capacitance measurement (C),
resistance measurement (R),
equivalent series resistance mode (ESR), or
direct current resistance mode (DCR) for U1733C only
54 U1731C/U1732C/U1733C User’s Guide
Setup Options 3
Press
Press
Press
Press
Press
Press
Setup Menu Items
The LCR meter will start up in the selected measurement type for subsequent power cycles.
Figure 3-1 Changing the power-on measurement type
U1731C/U1732C/U1733C User’s Guide 55
3Setup Options
Press
Press
Press
Press
Setup Menu Items
Changing the power-on test frequency
Use this Setup item to change the LCR meter’s initial test frequency. You can set the LCR meter to start up using a test frequency from 100 Hz to 100 kHz.
The LCR meter will start up using the selected test frequency for subsequent power cycles.
Figure 3-2 Changing the power-on test frequency
56 U1731C/U1732C/U1733C User’s Guide
Setup Options 3
Press
Press
Press
Press
Press
Press
Press
Press
Setup Menu Items
Changing the power-on secondary parameter and measurement mode for inductance (L) measurements
Use this Setup item to change the inductance (L) measurement’s initial secondary parameter — dissipation factor (D), quality factor (Q), or phase angle (θ) — and measurement mode — parallel or series.
The inductance (L) measurement will start up using the selected secondary parameter and measurement mode for subsequent power cycles.
Figure 3-3 Changing the power-on secondary parameter and measure-
ment mode for inductance (L) measurements
U1731C/U1732C/U1733C User’s Guide 57
3Setup Options
Press
Press
Press
Press
Press
Press
Press
Press
Setup Menu Items
Changing the power-on secondary parameter and measurement mode for capacitance (C) measurements
Use this Setup item to change the capacitance (C) measurement’s initial secondary parameter — dissipation factor (D), quality factor (Q), or phase angle (θ) — and measurement mode — parallel or series.
The capacitance (C) measurement will start up using the selected secondary parameter and measurement mode for subsequent power cycles.
Figure 3-4 Changing the power-on secondary parameter and measure-
ment mode for capacitance (C) measurements
58 U1731C/U1732C/U1733C User’s Guide
Setup Options 3
Press
Press
Press
Press
Press
Press
Press
Press
Setup Menu Items
Changing the power-on secondary parameter and measurement mode for resistance (R) measurements
Use this Setup item to change the resistance (R) measurement’s initial secondary parameter — dissipation factor (D), quality factor (Q), or phase angle (θ) — and measurement mode — parallel or series.
The resistance (R) measurement will start up using the selected secondary parameter and measurement mode for subsequent power cycles.
Figure 3-5 Changing the power-on secondary parameter and measure-
ment mode for resistance (R) measurements
U1731C/U1732C/U1733C User’s Guide 59
3Setup Options
Press
Press
Setup Menu Items
Changing the power-on open/short correction
Use this Setup item to change the LCR meter’s initial open/short correction to either the factory open/short correction (FACt), or user open/short correction (USEr).
The LCR meter will start up using the selected open/short correction for subsequent power cycles.
Figure 3-6 Changing the power-on open/short correction
60 U1731C/U1732C/U1733C User’s Guide
Setup Menu Items

Changing the Ai function’s phase angle condition

This setting is used with the Ai function (see page 26). The Ai function helps to identify L, C, and R measurements
automatically according to the angle of impedance detected in the DUT.
Use this Setup item to change the default phase angle for the Ai function between 5° and 45°.
Parameter Range Default setting
Ai (5 to 45)° 10°
Table 3- 3 shows the correlation between the phase angle
detected and the L, C, and R measurements selected.
Tab l e 3 - 3 Auto identification phase angle rules
Setup Options 3
Phase angle
Set < θ < +Set R θ
θ ≥ +Set LQ
θ ≤ –Set CD
[1] Where ±Set is the phase angle selected.
[1]
Primary display Secondary display
U1731C/U1732C/U1733C User’s Guide 61
3Setup Options
Press
Press
Press
Press
Press
Press
Setup Menu Items
Figure 3-7 Changing the Ai function’s phase angle condition
62 U1731C/U1732C/U1733C User’s Guide

Changing the power-on limit category and set

Press
Press
Press
Press
Press
Press
Press
Press
This setting is used with the Limit comparison function (page 42). There are 32 limit sets available (16 fixed factory sets, and 16 variable user sets).
Use this Setup item to change the default category (factory or user) and set (1 to 16) for subsequent power cycles.
Parameter Range Default setting
Setup Options 3
Setup Menu Items
Pon
Figure 3-8 Changing the power-on limit and category set
Factory (Ft01 to Ft16) or
User (Ur01 to Ur16)
Ft01
U1731C/U1732C/U1733C User’s Guide 63
3Setup Options
NOTE
Setup Menu Items

Changing the user high/low limit values

This setting is used with the Limit comparison function (page 42). There are 16 variable user sets available.
Use this Setup item to change the high and low limits of each variable user set.
The low limit can be set from 0 to less than or equal to the high limit, and the high limit can be set from more than or equal to the low limit to less than or equal to the maximum display count (19999).
Parameter Range Default setting
H(01 to 16) or
L(01 to 16)
0 to 19999 See Tab le 3- 4
Table 3- 4 shows the user default limit values for each set.
Tab l e 3 - 4 Default user high/low limit values
Set High limit (H) Low limit (L)
U01 1000 900
U02 1200 1080
U03 1500 1350
U04 1800 1620
U05 2200 1980
U06 2700 2430
U07 3300 2970
U08 3900 3510
U09 4700 4230
U10 5600 5040
64 U1731C/U1732C/U1733C User’s Guide
Setup Options 3
Press
Press
Press
Press
Press
Press
Press
Press
Press
Press
Press
Press
Press
Press
Press
Press
Press
Press
Setup Menu Items
Tab l e 3 - 4 Default user high/low limit values (continued)
Set High limit (H) Low limit (L)
U11 6800 6120
U12 8200 7380
U13 10000 9000
U14 12000 10800
U15 15000 13500
U16 18000 16200
Figure 3-9 Changing the user high/low limit values
U1731C/U1732C/U1733C User’s Guide 65
3Setup Options
Press
Press
Setup Menu Items

Changing the baud rate

This setting is used with the IR communication link and the Agilent GUI Data Logger software to control your LCR meter remotely (page 9).
Use this Setup item to change the baud rate for remote communications with a PC.
Parameter Range Default setting
bPS (9600 or 19200) bits/second
Figure 3-10 Changing the baud rate
9600 bits/second
66 U1731C/U1732C/U1733C User’s Guide

Changing the parity check

Press
Press
Press
Press
This setting is used with the IR communication link and the Agilent GUI Data Logger software to control your LCR meter remotely (page 9).
Use this Setup item to change the parity check for remote communications with a PC.
Parameter Range Default setting
PAr nonE, En, or odd nonE
Setup Options 3
Setup Menu Items
Figure 3-11 Changing the parity check
U1731C/U1732C/U1733C User’s Guide 67
3Setup Options
Press
Press
Setup Menu Items

Changing the data bits

This setting is used with the IR communication link and the Agilent GUI Data Logger software to control your LCR meter remotely (page 9).
Use this Setup item to change the number of data bits (data width) for remote communications with a PC. The number of the stop bit is always 1, and this cannot be changed.
Parameter Range Default setting
dAt 7-bit or 8-bit 8-bit
Figure 3-12 Changing the data bits
68 U1731C/U1732C/U1733C User’s Guide

Changing the beep frequency

Press
Press
Press
Press
Press
Press
The LCR meter’s beeper alerts users to the presence of newly sensed values for static recordings, sensed values that are out of tolerance or limits set, as well as invalid key operations.
Use this Setup item to change the driving frequency of the beeper.
Parameter Range Default setting
bEP (2000, 3000, 4000) Hz or oFF 4000 Hz
Setup Options 3
Setup Menu Items
Figure 3-13 Changing the beep frequency
U1731C/U1732C/U1733C User’s Guide 69
3Setup Options
Press
Press
Setup Menu Items

Locking the push buttons

Use this Setup item to lock the push buttons (keys) of your LCR meter. If enabled, all keys will be locked (rendered unoperational) when you exit the Setup menu.
Unlock the push buttons again by entering the Setup menu through the power- on options (page 10).
Parameter Range Default setting
LPb on or oFF oFF
Figure 3-14 Locking the push buttons
70 U1731C/U1732C/U1733C User’s Guide
Setup Options 3
Press
Press
Press
Press
Press
Press
Press
Press
Press
Press
Press
Press
Setup Menu Items

Changing the auto power-off and backlight timeouts

The LCR meter’s automatic power-off (see page 6) and backlight (see page page 6) features use timers to determine when to turn off the backlight and when to automatically turn the LCR meter off.
Parameter Range Default setting
APo (01 to 99) minutes or oFF 05 minutes
bLt (01 to 99) seconds or oFF 30 seconds
Figure 3-15 Changing the auto power-off and backlight timeouts
U1731C/U1732C/U1733C User’s Guide 71
3Setup Options
Rec
Hold
Press
Rec
Hold
Setup Menu Items

Resetting the Setup items

The Setup items can be reset to their default values through this Setup item.
Press to perform the reset. The LCR meter will beep once, exit the Setup menu, and return to normal operation.
Parameter Range Default setting
rSt dEFA dEFA
Figure 3-16 Resetting the Setup items
72 U1731C/U1732C/U1733C User’s Guide
U1731C/U1732C/U1733C Handheld LCR Meter User’s Guide

4 Characteristics and Specifications

Product Characteristics 74 Specification Assumptions 75 Electrical Specifications 76
Impedance/Resistance/DCR specifications 76
Capacitance specifications 77
Inductance specifications 78
Phase angle of impedance specifications 79
Dissipation/Quality factor specifications 80
Test signal specifications 81
Source impedance of impedance/resistance measurement 82
Source impedance of capacitance measurement 83
Source impedance of inductance measurement 84 SMD Tweezer Specifications 85
Electrical characteristics 86
This chapter lists the characteristics, assumptions, and specifications of the U1731C, U1732C, and U1733C handheld LCR meters.
Agilent Technologies
73
4 Characteristics and Specifications
NOTE

Product Characteristics

Product Characteristics
Product characteristics specified in the table below are applicable for all U1731C, U1732C, and U1733C models unless stated otherwise.
POWER SUPPLY
Battery type:
1 × 9 V Alkaline battery (ANSI/NEDA 1604A or IEC 6LR61), or
1 × 9 V Zinc Chloride battery (ANSI/NEDA 1604D or IEC 6F22)
Battery life:
16 hours typical (based on new Alkaline batteries without backlight enabled)
Low battery indicator will flash when the battery voltage drops below 7.2 V
(approximately)
External DC adapter
DC 12 V ± 10% or 10.8 V
POWER CONSUMPTION
225 mVA maximum (without backlight enabled)
MIN
to 13.2 V
MAX
DISPLAY
Dual display liquid crystal display (LCD)
Primary display is 4 1/2 digits with maximum of 19999 counts
Secondary display is 3 digits with maximum of 999 counts
MEASUREMENT RATE
1 time/second, nominal
OPERATING ENVIRONMENT
Operating temperature from –10 °C to 55 °C, 0% to 80% RH
Full accuracy up to 80% RH for temperatures up to 30 °C, decreasing linearly
to 50% RH at 55 °C
Altitude up to 2000 m
Pollution degree II
STORAGE COMPLIANCE
–20 °C to 70 °C, 0% to 80% RH
74 U1731C/U1732C/U1733C User’s Guide
Characteristics and Specifications 4

Specification Assumptions

SAFETY AND ELECTROMAGNETIC COMPATIBILITY (EMC) COMPLIANCE
IEC61010-1:2001/EN61010-1:2001 (Second Edition)
IEC 61326-1:2005/EN 61326-1:2006
Canada: ICES/NMB-001:Issue 4, June 2006
Australia/New Zealand: AS/NZS CISPR11:2004
TEMPERATURE COEFFICIENT
0.1 × (specified accuracy) / °C (from –10 °C to 18 °C, or 28 °C to 55 °C)
INPUT PROTECTION
Reset-able over-current protection.
DIMENSIONS (W × H × D)
87 × 184 × 41 mm
WEIGHT
337 grams (with battery)
WARRANTY
Please refer to http://www.agilent.com/go/warranty_terms
Three years for product
Three months for product’s standard accessories, unless otherwise specified
Please take note that for the product, the warranty does not cover:
Damage from contamination
Normal wear and tear of mechanical components
Manuals and standard disposable batteries
CALIBRATION CYCLE
One year
Specification Assumptions
Accuracy is given as ±(% of reading + counts of least
significant digit) at 23 °C ± 5 °C, with relative humidity less than 80% RH.
The measurement performed at the component test socket
and necessary open and short corrections must be done prior to verifying the instrument’s accuracy.
The accuracy is verified by design and specified type
tests.
U1731C/U1732C/U1733C User’s Guide 75
4 Characteristics and Specifications
NOTE
AZOffset+()1 Q2+×
AZOffset+()1 Q2+×

Electrical Specifications

Electrical Specifications
Specification assumptions are given on page 75.

Impedance/Resistance/DCR specifications

Tab l e 4 - 1 Impedance/Resistance/DCR specifications
Accuracy = A
Range Resolution
[1]
2 Ω
[1]
20 Ω
[1]
200 Ω
2000 Ω 0.1 Ω 0.2% + 3 0.2% + 3 0.2% + 3 0.2% + 3 0.2% + 3 0.5% + 5
20 kΩ 0.001 kΩ 0.2% + 3 0.2% + 3 0.2% + 3 0.2% + 3 0.2% + 3 0.5% + 5
200 kΩ 0.01 kΩ 0.5% + 5 0.5% + 5 0.5% + 5 0.5% + 5 0.5% + 5 0.7% + 8
2000 kΩ 0.1 kΩ 0.5% + 5 0.5% + 5 0.5% + 5 0.5% + 5 0.7% + 5 -
[2]
20 MΩ
200 MΩ
Notes:
1 The accuracy for the 2 Ω to 200 Ω range is specified after the Null function is used to subtract the resistance of test leads
and the contact resistance.
2 For the 20 MΩ and 200 MΩ range, the RH is specified for <60%. 3 Resistance measurement is specified to Q <10 and D >0.1; otherwise accuracy is specified as . 4 ESR (Equivalent Series Resistance) measurement is specified according to the impedance measurement and range. The
maximum display is up to 199.99 kΩ and the accuracy is specified as .
0.0001 Ω 0.7% + 50 0.7% + 50 0.7% + 50 0.7% + 50 0.7% + 50 1.0% + 50
0.001 Ω 0.7% + 8 0.7% + 8 0.7% + 8 0.7% + 8 0.7% + 8 0.7% + 8
0.01 Ω 0.2% + 3 0.2% + 3 0.2% + 3 0.2% + 3 0.2% + 3 0.5% + 5
0.001 MΩ 2.0% + 8 2.0% + 8 2.0% + 8 2.0% + 8 5.0% + 8 -
[2]
0.01 MΩ 6.0% + 80 6.0% + 80 6.0% + 80 6.0% + 80 - -
DCR 100 Hz 120 Hz 1 kHz 10 kHz 100 kHz
U1733C only All models All models All models
+ Offset
Z
U1733C and
U1732C only
U1733C only
76 U1731C/U1732C/U1733C User’s Guide

Capacitance specifications

Tab l e 4 - 2 Capacitance specifications
Characteristics and Specifications 4
Electrical Specifications
Accuracy = A
Range Resolution
20 mF 0.001 mF 0.5% + 8 0.5% + 8 - - -
2000 μF0.1 μF 0.5% + 5 0.5% + 5 0.5% + 8 - -
200 μF0.01 μF 0.3% + 3 0.3% + 3 0.5% + 5 0.5% + 8 -
20 μF0.001 μF 0.2% + 3 0.2% + 3 0.2% + 3 0.5% + 5 5.0% + 10
2000 nF 0.1 nF 0.2% + 3 0.2% + 3 0.2% + 3 0.2% + 3 0.7% + 10
200 nF 0.01 nF 0.2% + 3 0.2% + 3 0.2% + 3 0.5% + 3 0.7% + 10
20 nF 0.001 nF 0.5% + 5 0.5% + 5 0.2% + 3 0.5% + 3 0.7% + 10
[1]
2000 pF
[1]
200 pF
[1]
20 pF
Notes:
1 The accuracy for the 20 pF to 2000 pF range is specified after the Null function is used to subtract the stray capacitance of
the test leads.
2 The accuracy for the ceramic capacitor will be influenced depending on the dielectric constant (K) of the material used to
make the ceramic capacitor. For related influence factors, please refer to the Component dependency factors section in the Impedance Measurement Handbook, downloadable for free at http://www.agilent.com/find/lcrmeters.
0.1 pF 0.5% + 10 0.5% + 10 0.5% + 5 0.5% + 3 2.0% + 10
0.01 pF - - 0.5% + 10 0.8% + 10 2.0% + 10
0.001 pF - - - 1.0% + 20 2.5% + 10
100 Hz 120 Hz 1 kHz 10 kHz 100 kHz
All models All models All models
+ Offset
C
U1733C and U1732C only
U1733C only
U1731C/U1732C/U1733C User’s Guide 77
4 Characteristics and Specifications
Electrical Specifications

Inductance specifications

Tab l e 4 - 3 Inductance specifications
Accuracy = A
Range Resolution
20 μH0.001 μH - - - 1.0% + 5 2.5% + 20
200 μH0.01 μH - - 1.0% + 5 0.7% + 3 2.5% + 20
2000 μH0.1 μH 0.7% + 10 0.7% + 10 0.5% + 3 0.5% + 3 0.8% + 20
20 mH 0.001 mH 0.5% + 3 0.5% + 3 0.2% + 3 0.3% + 3 0.8% + 10
200 mH 0.01 mH 0.5% + 3 0.5% + 3 0.2% + 3 0.2% + 3 1.0% + 10
2000 mH 0.1 mH 0.2% + 3 0.2% + 3 0.2% + 3 0.5% + 5 1.0% + 10
20 H 0.001 H 0.2% + 3 0.2% + 3 0.5% + 5 1.0% + 5 2.0% + 10
200 H 0.01 H 0.7% + 5 0.7% + 5 1.0% + 5 2.0% + 8 -
2000 H 0.1 H 1.0% + 5 1.0% + 5 2.0% + 8 - -
100 Hz 120 Hz 1 kHz 10 kHz 100 kHz
All models All models All models
+ Offset
L
U1733C and U1732C only
U1733C only
78 U1731C/U1732C/U1733C User’s Guide

Phase angle of impedance specifications

A
Z
Offset
Z
x
--------------- -+


180
π
-------- -
×
Tab l e 4 - 4 Phase angle of impedance specifications
Characteristics and Specifications 4
Electrical Specifications
Range Resolution Accuracy = θ
–180° to 180° 0.1°/1° D < 1 or Q > 1
Notes:
1 The A
and Offset variables are the accuracy specified at Tab le 4 -1 , “Impedance/Resistance/DCR specifications,” on
Z
page 76.
2 The π variable is rounded up to 3.14159.
Impedance Z
1999.9 Ω 19999 0.2% 3 ±0.12°
199.9 Ω 1999 0.2% 3 ±0.20°
19.9 Ω 199 0.2% 3 ±0.98°
1.9 Ω 19 0.2% 3 ±9.16°
e
X
A
Z
Offset θ
Condition
e
U1731C/U1732C/U1733C User’s Guide 79
4 Characteristics and Specifications
A
Z
Offset
Z
x
--------------- -+ 100% 3+×
A
L
Offset
L
x
--------------- -+ 100% 3+×
A
C
Offset
C
x
--------------- -+ 100% 3+×
Electrical Specifications

Dissipation/Quality factor specifications

Tab l e 4 - 5 Dissipation/Quality factor specifications
Range Resolution Accuracy = θ
Z 0.001 to 999 D < 1 or Q > 1
L 0.001 to 999 D < 1 or Q > 1
C 0.001 to 999 D < 1 or Q > 1
Notes:
1 The AZ, AL, AC, and Offset variables are the accuracy specified at Tab l e 4 -1, Ta bl e 4 -2 , and Tab l e 4- 3 respectively. 2 The Z
3 The quality factor is the reciprocal of the dissipation factor.
, Lx, and Cx variables are the display count of the reading. For example, the Cx value is 8888 if the capacitance is
x
88.88 μF for the range of 200 μF.
Capacitance C
88.88 μF 8888 0.2% 3 0.203% + 3
X
A
C
e
Offset D
Condition
e
80 U1731C/U1732C/U1733C User’s Guide

Test signal specifications

Tab l e 4 - 6 Test signal specifications
Characteristics and Specifications 4
Electrical Specifications
Selection
100 Hz All models 0.74 Vrms 0.05 Vrms 100 Hz 0.01%
120 Hz All models 0.74 Vrms 0.05 Vrms 120.481 Hz 0.01%
1 kHz All models 0.74 Vrms 0.05 Vrms 1 kHz 0.01%
10 kHz
100 kHz U1733C only 0.70 Vrms 0.05 Vrms 100 kHz 0.01%
DCR U1733C only 1.235 V 0.05 V - -
U1733C and U1732C only
Test signal level Test frequency
Level Accuracy Frequency Accuracy
0.70 Vrms 0.05 Vrms 10 kHz 0.01%
U1731C/U1732C/U1733C User’s Guide 81
4 Characteristics and Specifications
Electrical Specifications

Source impedance of impedance/resistance measurement

Tab l e 4 - 7 Source impedance of impedance/resistance measurement
Typical source impedance
Range
2 Ω 100 Ω 100 Ω 100 Ω 100 Ω 100 Ω 100 Ω
20 Ω 100 Ω 100 Ω 100 Ω 100 Ω 100 Ω 100 Ω
200 Ω 100 Ω 100 Ω 100 Ω 100 Ω 100 Ω 100 Ω
2000 Ω 1 kΩ 1 kΩ 1 kΩ 1 kΩ 1 kΩ 1 kΩ
20 kΩ 10 kΩ 10 kΩ 10 kΩ 10 kΩ 10 kΩ 1 kΩ
200 kΩ 100 kΩ 100 kΩ 100 kΩ 100 kΩ 10 kΩ 1 kΩ
2000 kΩ 100 kΩ 100 kΩ 100 kΩ 100 kΩ
20 MΩ 100 kΩ 100 kΩ 100 kΩ 100 kΩ 100 kΩ -
200 MΩ 100 kΩ 100 kΩ 100 kΩ 100 kΩ --
DCR 100 Hz 120 Hz 1 kHz 10 kHz 100 kHz
U1733C only All models All models All models
U1733C and U1732C only
10 kΩ -
U1733C only
82 U1731C/U1732C/U1733C User’s Guide
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