Hioki RM3542-50, RM3542A, RM3542-51 Instruction Manual
Table of Contents
Contents
i
1
Task-Oriented Reference...............................1
Measurement Flow......................................... 3
Introduction.....................................................4
Verifying Package Contents...........................4
Safety Information .......................................... 6
Operating Precautions....................................8
Chapter 1 Overview 11
1.1 Product Overview and Features ........11
Block Diagram ..........................................14
1.2 Names and Functions of the Parts ..... 15
1.3 Screen Organization ..........................17
Chapter 2 Measurement
Preparations 21
2.1 Connecting the Power Cord............... 22
2.2 Connecting Measurement Probes and
Test Fixtures ...................................... 23
Making Your Own Measurement Probes ..24
2.3 Turning the Power On and Off ........... 25
Chapter 3 Measurement Settings (Basic Measurements) 27
3.1 Pre-Operation Inspection ................... 27
3.2 Measuring Object Types .................... 28
3.3 Setting the Measurement Speed .......29
3.4 Setting Measurement Start Conditions
(Trigger Source) .................................31
3.5 Selecting the Measurement Range .... 32
3.6 Zero Adjustment ................................. 34
3.7 Judging Measurement Values
(Comparator Function) .......................36
Enabling and Disabling the
Comparator Function ................................37
Decide According to Reference Value and
Tolerance (REF% Mode) ..........................37
Decide According to Upper/Lower Thresholds
(ABS Mode) ............................................. 39
3.8 Confirming Faulty Measurements ......40
Chapter 4 Customizing Measurement Settings 43
4.1 Making Range-Specific Measurement
Settings ..............................................43
4.2 Setting Pre-Measurement Delay ........44
4.3 Compensating Measured Values
(Scaling Function) .............................46
4.4 Setting the Measurement Integration
Time Option ........................................48
4.5 Checking for Poor or Improper Contact
(Contact Check Function) ...................50
4.6 Improving Probe Contact
(Contact Improver Function) ...............52
4.7 Detecting Measurement Voltage Faults
(Voltage Level Monitor Function) .......55
4.8 Applying Current Only When Measuring
(Current Mode Setting) .......................56
4.9 Test for Short-Circuited Probe
(Probe Short-Circuit Detection Function)
............................................................57
4.10 Comparing the Measurement Settings of
Two Instruments
(Settings Monitor Function) ................59
4.11 Retrying Measurement After a Fault
(Retry Function) .................................62
4.12 Limiting Measurement Voltage
(Applied Voltage Limiter Function) .....64
4.13 Maintaining Measurement Precision
(Self-Calibration Function) ..................65
4.14 Compensating for Thermal EMF Offset
(Offset Voltage Compensation - OVC) 65
Chapter 5 System Settings 67
5.1 Disabling and Enabling Key Operations
............................................................67
Disabling Key Operations
(Key-Lock Function) ................................. 67
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3
4
5
RM3542D962-01
ii
Table of Contents
Re-Enabling Key Operations
(Key-Lock Cancel) ................................... 68
5.2 Setting the Comparator Judgment and
Key Beepers ......................................69
Enabling or Disabling the Key Beeper ..... 69
Setting the Comparator Judgment Beeper 70
5.3 Power Line Frequency Manual Setting
............................................................71
5.4 Setting the Clock ................................72
5.5 Adjusting Screen Contrast ..................73
5.6 Adjusting the Backlight .......................74
5.7 Initializing (Reset) ...............................75
Default Settings ........................................ 76
Chapter 6 Storing and
Exporting Data 79
6.1 Storing Data at Specified Timing
(Data Memory Function) .....................80
6.2 Store as soon as Measurement is Stable
(Auto-Memory Function) .....................81
6.3 Performing Statistical Calculations on
Measurement Values .........................84
Using Statistical Calculations ................... 85
Confirming, Printing, and Erasing Statistical
Calculation Results .................................. 86
6.4 Auto-Exporting Measurement Values
(at End of Measurement)
(Data Output Function) .......................87
Chapter 7 Printing 89
7.1 Connecting the Printer ........................89
Connecting the Printer to the Instrument . 90
7.2 Setting the Instrument ........................91
7.3 Printing ...............................................93
Printing Measurement Values and
Comparator Judgments ........................... 93
Printing Statistical Calculation Results .... 93
Chapter 8 External Control 95
8.1 Ext. I/O Connectors and Signals ........95
Connector Type and Signal Pinouts ........ 96
Signal Descriptions .................................. 97
8.2 Timing Chart .......................................99
8.3 Internal Circuitry ............................... 102
Electrical Specifications ......................... 103
Connection Examples ............................ 104
8.4 Ext. I/O Settings ............................... 105
Setting the End-of-Measurement Signal
Output (EOM
Signal Setting) .................. 105
Setting the Trigger Signal (TRIG) Logic . 106
8.5 Q&A Regarding External Control ..... 107
8.6 Supplied Connector Assembly ......... 108
Chapter 9 Communications
(RS-232C/ GP-IB Interface) 109
9.1 Overview and Features of Interfaces 109
9.2 Specifications ................................... 110
9.3 Connecting ....................................... 111
Using the RS-232C Interface ................. 111
Using the GP-IB Interface
(RM3542-51 only) ................................. 112
9.4 Configuring the Communications Protocol
.......................................................... 113
Configuring RS-232C Interface
Communications Protocol ...................... 113
Configuring the GP-IB Interface
Communication Protocol (RM3542-51 only)
............................................................... 114
Set the Measurement Value Transmission
format (common for RS-232C and GP-IB)
................................................................ 115
9.5 Communication Methods ................. 116
To Cancel the Remote Status
(Enter the Local Status) ......................... 116
Message Format .................................... 117
Output Queue and Input Buffer .............. 120
Status Byte Register .............................. 121
Event Registers ...................................... 123
Initialization Items ................................... 126
Command Execution Time ..................... 127
Errors During Communications .............. 127
9.6 Message List .................................... 128
Shared Commands ................................ 128
Device-Specific Commands ................... 130
9.7 Message Reference ......................... 134
Message Reference Interpretation ......... 134
Shared Commands ................................ 135
Device-Specific Commands ................... 139
9.8 Data exporting methods ................... 163
9.9 Sample Programs ............................ 165
Using Visual Basic 5.0 or 6.0 ................. 165
Create with Visual Basic 2005 ................175
Sample Programs (Visual Basic 2005) ...177
9.10 Device Compliance Documents....... 179
Chapter 10 Specifications 181
Chapter 11 Maintenance
and Service 195
11.1 Troubleshooting ...............................195
Inspection and Repair .............................195
11.2 Cleaning ...........................................196
11.3 Error Displays and Solutions ............ 197
11.4 Disposing of the Instrument ............. 199
Removing the Lithium Battery .................199
iii
Table of Contents
5
Appendix A 1
Appendix 1 Four-Terminal (Voltage-Drop)
Method......................................A 1
Appendix 2 Effect of Thermal emf ...............A 2
Appendix 3 Unstable Measurement Values.A 3
Appendix 4 Rack Mounting ..........................A 8
Appendix 5 Dimensional diagram ..............A 10
Appendix 6 Calibration...............................A 11
Appendix 7 Adjustment..............................A 13
Appendix 8 Table of Comparison Commands
ADEX AX-162D / for this instrument
................................................A 14
Appendix 9 Zero Adjustment .....................A 16
Index Index 1
6
7
8
9
10
11
12
Appendix
Index
iv
Table of Contents
Task-Oriented Reference
Setting the Measurement Speed (p. 29)
1
Task-Oriented Reference
To minimize measurement error
To judge measurement results
To correct faulty measurements
To enhance the reliability of
inspection
Setting the measurement speed integration time option (p. 48)
Zero Adjustment (p. 34)
Judging Measurement Values (Comparator Function) (p. 36)
Comparing the Measurement Settings of Two Instruments (Settings
Monitor Function) (p. 59)
Confirming Faulty Measurements (p. 40)
Improving Probe Contact (Contact Improver Function) (p. 52)
Checking for Poor or Improper Contact (Contact Check Function) (p.
50)
Detecting Measurement Voltage Faults (Voltage Level Monitor Function) (p. 55)
Test for Short-Circuited Probe (Probe Short-Circuit Detection Function)
(p. 57)
To inspect the 03015 mm or 0201
mm (Imperial 008004) size components
To automatically store measurement values
To print measurement results
To measure by connecting with
PLC (Control equipment)
(PLC: Programmable Logic Controller)
To connect to a computer
Comparing the Measurement Settings of Two Instruments (Settings
Monitor Function) (p. 59)
Limiting Measurement Voltage (Applied Voltage Limiter Function)
(p. 64)
Store as soon as Measurement is Stable (Auto-Memory Function)
(p. 81)
Printing (p. 89)
External Control (p. 95)
Communications (RS-232C/ GP-IB Interface) (p. 109)
Communications (RS-232C/ GP-IB Interface) (p. 109)
2
Task-Oriented Reference
To enable auto-exporting
measurement values to the
computer
(Available only with RS-232C interface)
To check operation
Auto-Exporting Measurement Values (at End of Measurement) (Data
Output Function) (p. 87)
Setting Measurement Start Conditions (Trigger Source) (p. 31)
Internal trigger [INT]
Calibration (p. A11)
Measurement Flow
Communicating with
the computer (p. 109)
Printing (p. 89)
External control
(p. 95)
EXT.I/O
RS-232C
GP- IB
Comparing Two Instruments (p. 59)
SET MONITOR
Connecting the Power Cord (p. 22)
Turning Power On (p. 25)
Connecting (p. 21)
Installing (p. 8)
Connecting Measurement Probes (p. 23)
Setting measuring conditions
(as needed)
Confirm the screen configuration
(p. 17)
Confirm the initial setup (p. 76)
• Basic Settings(p. 27)
• Configure settings for your
specific conditions (p. 43)
•
System-related settings (p. 67)
When changing settings
Change basic settings
such as measurement
speed
Change detailed settings
(measurement conditions and system-related
settings)
Setting judgment criteria
(p. 36)
Transmitting data (p. 87) Printing (p. 89)
Computer communications
(p. 109)
External Control (p. 95)
Enable statistical
calculation (p. 84)
Instrument interface settings must
be configured before printing, using
communications or external control.
Turning Power Off (p. 25)
Be sure to read the "Operating Precautions" (p. 8) before use.
Installing, Connecting and Turning On
3
Measurement Flow
Settings of RM3542A
Calculation, Printing, Communication, and External Control Settings
When Finished
4
When you receive the instrument, inspect it carefully to ensure that no damage occurred during shipping. In particular, check the accessories, panel switches, and connectors. If damage is evident, or if it
fails to operate according to the specifications, contact your authorized Hioki distributor or reseller.
Confirm that these contents are provided.
This instrument ....................... 1
Accessories
Instruction Manual (This document) ........... 1
Operation Guide ......................................... 1
Power Cord (p. 22)
EXT.I/O Male Connector (p. 108)
Introduction
Introduction
Thank you for purchasing the Hioki Model RM3542A (RM3542-50/RM3542-51) Resistance
Meter.
To obtain maximum performance from the instrument, please read this manual first, and keep
it handy for future reference.
Model RM3542-51 includes the GP-IB interface.
Registered trademarks
• Windows and Visual Basic are either registered trademarks of Microsoft Corporation in the
United States and other countries.
• Teflon is a registered trademark of E. I. du Pont de Nemours and Company.
Verifying Package Contents
Inspection
Content confirmation
Options
Measurement Probes and Fixtures
(connect to measurement jacks)
Model 9140-10 4-terminal Probe
Model 9262 Test Fixture
Model 9263 SMD Test Fixture
Model IM9100 SMD Test Fixture
Alligator-clip-type measurement probes.
These general-purpose dual-electrode clips fit
a wide range of conductor thicknesses.
Measurable terminal diameter:
0.3 mm to 5 mm
This fixture is for measuring
lead components.
Measurable sample dimension:
Lead diameter:
φ0.3 mm to φ2 mm
Lead pitch: 5 mm or more
(less than 20 mΩ residual resistance after
zero adjustment)
This fixture is for measuring
chip components.
Measurable sample dimension:
Sample width: 1 mm to 10 mm
(less than 20 mΩ residual resistance after
zero adjustment)
This fixture is for measuring ultra-small
SMD components.
Measurable sample dimension:
JIS(EIA): Approx. L mm x W mm
0402 (01005): 0.4 mm x 0.2 mm
0603 (0201): 0.6 mm x 0.3 mm
1005 (0402): 1.0 mm x 0.5 mm
(less than 100 mΩ residual resistance after zero
adjustment)
Interface Cables
Model 9637 RS-232C Cable
(9-pin to 9-pin/crossover cable/1.8
m)
Model 9638 RS-232C Cable
(9-pin to 25-pin/crossover cable/1.8
m)
Model 9151-02 GP-IB Connector
Cable (2 m)
Contact your authorized Hioki distributor or reseller for details.
5
Verifying Package Contents
Precautions during shipping
During shipment of the instrument, handle it carefully so that it is not damaged due to a vibration or shock.
6
Safety Information
Safety Information
This instrument is designed to conform to IEC 61010 Safety Standards, and has been thoroughly tested for safety prior to shipment. However, using the instrument in a way not
described in this manual may negate the provided safety features.
Before using the instrument, be certain to carefully read the following safety notes:
If persons unfamiliar with electricity measuring instrument are to use the instrument, another
person familiar with such instruments must supervise operations.
Mishandling during use could damage to the instrument. Be certain that you understand the
instructions and precautions in the manual before use.
Marks on This Instrument
Indicates cautions and hazards. When the symbol is printed on the instrument, refer to a corresponding topic in the Instruction Manual.
Indicates AC (Alternating Current).
Alarm Symbols
In this document, the risk seriousness and the hazard levels are classified as follows.
Indicates an imminently hazardous situation that will result in death or serious injury to the operator.
Indicates a potentially hazardous situation that may result in death or serious injury to the operator.
Indicates a potentially hazardous situation that may result in minor or moderate injury to the operator
or damage to the instrument or malfunction.
Indicates advisory items related to performance or correct operation of the instrument.
Symbols for Various Standards
This symbol indicates that the product conforms to regulations set out by the EC Directive.
This symbol indicates laws and regulations regarding the disposal of electrical and electronic appliances in the Member States of EU (WEEE directive).
Other Symbols
Indicates the prohibited action.
7
Safety Information
(p. )
*
[ ]
SET
(Bold characters)
Unless otherwise specified, Windows represents Windows 95, 98, Me, Windows NT4.0, Windows 2000, Windows XP, or
Windows Vista.
Click: Press and quickly release the left button of the mouse.
Double click: Quickly click the left button of the mouse twice.
Indicates the location of reference information.
Indicates that descriptive information is provided below.
Square brackets indicate instrument display labels (such as setting item names).
Bold characters within the text indicate operating key labels.
Accuracy
We define measurement tolerances in terms of f.s. (full scale), rdg. (reading) and dgt. (digit) values, with the
following meanings:
f.s. (maximum display value)
The maximum displayable value. This is usually the name of the currently selected range.
rdg. (reading or displayed value)
The value currently being measured and indicated on the measuring instrument.
dgt. (resolution)
The smallest displayable unit on a digital measuring instrument, i.e. a "1" as the least-significant digit.
Measurement categories
To ensure safe operation of measuring instruments, IEC 61010 establishes safety standards for various electrical environments, categorized as CAT II to CAT IV, and called measurement categories.
• Using a measuring instrument in an environment designated with a higher-num-
bered category than that for which the instrument is rated could result in a severe
accident, and must be carefully avoided.
• Never use a measuring instrument that lacks category labeling in a CAT II to CAT IV
measurement environment. Doing so could result in a serious accident.
When directly measuring the electrical outlet receptacles of the primary electrical circuits
CAT II:
CAT III:
CAT IV:
in equipment connected to an AC electrical outlet by a power cord (portable tools, household appliances, etc.)
When measuring the primary electrical circuits of heavy equipment (fixed installations) connected directly to the distribution panel, and feeders from the distribution panel to outlets
When measuring the circuit from the service drop to the service entrance, and to the
power meter and primary overcurrent protection device (distribution panel)
8
The instrument can be used with the stand (p. 16) in the upright position.
It can also be rack-mounted (p. A8).
50 mm or more
10 mm or more
Rear Panel
50 mm or more
Unplugging the power cord kills power to the instrument. Be sure to provide enough
unobstructed space to unplug the power cord immediately in an emergency.
Operating Precautions
Operating Precautions
Follow these precautions to ensure safe operation and to obtain the full benefits of the various
functions.
Preliminary Checks
Before using the instrument for the first time, verify that it operates normally to ensure that no
damage occurred during storage or shipping. If you find any damage, contact your authorized
Hioki distributor or reseller.
Instrument Installation
Installing the instrument in inappropriate locations may cause a malfunction of instrument or may give rise to an accident. Avoid the following locations:
• Exposed to direct sunlight or high temperature
• Exposed to corrosive or combustible gases
• Exposed to a strong electromagnetic field or electrostatic charge
• Near induction heating systems (such as high-frequency induction heating systems
and IH cooking equipment)
• Susceptible to vibration
• Exposed to water, oil, chemicals, or solvents
• Exposed to high humidity or condensation
• Exposed to high quantities of dust particles
Installing
• To prevent overheating, be sure to leave the specified clearances around the instrument.
• Install the instrument with the bottom facing down.
Do not place the instrument on an unstable table or an inclined place. Dropping or knocking
down the instrument can cause injury or damage to the instrument.
Handling the Instrument
To avoid damage to the instrument, protect it from physical shock when transporting and
handling. Be especially careful to avoid physical shock from dropping.
This instrument may cause interference if used in residential areas. Such use must be
avoided unless the user takes special measures to reduce electromagnetic emissions to prevent interference to the reception of radio and television broadcasts.
Handling the Fixture
Before using a test fixture, read the instructions provided with it.
Before Turning Power On
• Before turning the instrument on, make sure the supply voltage matches the voltage
indicated on its power connector. Connection to an improper supply voltage may
damage the instrument and present an electrical hazard.
• To avoid electrical accidents and to maintain the safety specifications of this instru-
ment, connect the power cord provided only to an outlet.
9
Operating Precautions
Avoid using an uninterruptible power supply (UPS) or DC/AC inverter with rectangular wave
or pseudo-sine-wave output to power the instrument. Doing so may damage the instrument.
Before Connecting EXT. I/O Connector
To avoid electric shock or damage to the equipment, always observe the following
precautions when connecting to the EXT. I/O connectors:
• Always turn off the power to the instrument and to any devices to be connected
before making connections.
• During operation, a wire becoming dislocated and contacting another conductive
object can be serious hazard. Use screws to secure the EXT. I/O connectors.
To avoid damage to the instrument, always observe the following precautions when
connecting to the EXT. I/O connector.
• Do not apply voltage or current to the EXT. I/O terminals that exceeds their ratings
(p. 103).
• Ensure that devices and systems to be connected to the EXT. I/O terminals are
properly isolated.
• When driving relays, be sure to install diodes to absorb counter-electromotive
force.
• The IISO_5 V pin of the EXT. I/O connector is a 5 V power output. Do not apply exter-
nal power to this pin. Be careful not to short-circuit ISO_5 V to ISO_COM.
• The IISO_12 V pin of the EXT. I/O connector is a 12 V power output. Do not apply
external power to this pin. Be careful not to short-circuit ISO_12 V to ISO_COM.
See "Connector Type and Signal Pinouts" (p. 96).
10
Operating Precautions
Before Connecting to the RS-232C Connector or SET MONITOR Connector
• Use a common ground for both the instrument and connected device.
Using different ground circuits will result in a potential difference between the instrument's
ground and the connected device.
If the communications cable is connected while such a potential difference exists, it may
result in equipment malfunction or failure.
• Before connecting or disconnecting any the communications cable, always turn off the
instrument and the connected device. Failure to do so could result in equipment malfunction or damage.
• After connecting the communications cable, tighten the screws on the connector securely.
Failure to secure the connector could result in equipment malfunction or damage.
Before Measuring
To avoid electrical hazards and damage to the instrument, do not apply voltage
exceeding the rated maximum to the EXT. I/O connectors.
• Do not apply any voltage to the measurement jacks. Doing so may damage the unit.
• Never attempt to measure at a point where voltage is present. In particular, do not measure a transformer or motor immediately after a temperature increase test or withstandvoltage test, as the instrument could be damaged by induced voltage or residual charge.
• Battery internal resistance cannot be measured with this instrument. It will sustain damage.
To measure the battery internal resistance, we recommend the Hioki 3554, 3555, BT3562,
BT3563 and 3561 Battery HiTesters.
• To obtain the guaranteed measurement accuracy, allow at least 30 minutes warm-up.
• The instrument internally retains all settings (but not measurement values), such as measurement range and comparator settings. However, measurement settings made through
the RS-232C or GP-IB interface are not memorized.
• In the 100
occur due to the influence of thermo electromotive force.
• The DC resistance of a power transformer cannot be measured. When measuring objects
with a large L, such as choke coils and other inductors, measurement values may be
unstable. In such cases, contact your authorized Hioki distributor or reseller.
• Carefully insulate all H
cannot be performed and an error will occur if the core and shield wires touch.
Ω or higher ranges (LOW POWER: OFF setting), a measurement error may
, H
, L
CUR
POT
POT
and L
wiring. Proper 4-terminal measurements
CUR
1.1 Product Overview and Features
This instrument employs the 4-terminal method to quickly and accurately measure the DC resistance of
components, such as resistors and ferrite beads.
It includes advanced contact-check, comparator, and data output functions. The intuitive user interface
and high noise immunity are ideal for use with taping machines and separators.
Resistance Measurement
The factory defaults (initial settings)
are optimized for chip-component resistance measurements. It can also
measure devices that are otherwise
difficult to measure with a high current, such as ferrite bead and small
multilayer inductors (low-power resistance measurement) (p. 28).
It is also suitable for measuring imperial 008004 sized components with
small rated voltage (Applied Voltage
Limit Function) (p. 64)
Interface Communications
Connect the instrument to a controller via the RS-232C or GP-IB
interface to control this instrument or acquire the measurement data
(p. 109)
Send the measurement value
and calculation results to the
printer.
Use a commercially available printer with a serial interface to print the
measurement values and calculation results. (p. 89)
Save and Output the Measurement Values
Measurement values can be stored
in the internal memory (p. 79).
Statistical calculations can be performed on the stored data, which
can be transferred to a computer in
batch form (however, stored data
cannot be confirmed internally).
Judge the Measurement Values
Measurement values are compared
with a pre-specified reference value
or range, and the result is outputted
externally and indicated by the
COMP indicators (comparator function) (p. 36)
Connect a PLC or I/O Board
By connecting to the EXT. I/O connector, it is possible to control the
instrument from a PLC. In addition
to the comparator results, various
measurement anomaly signals
can be outputted. (p. 95)
Upper limit
Lower limit
When using two instruments, a difference in settings disables measurement and causes a warning
notification (Setting Monitor Function)
(p. 59).
Optional Hioki probes and fixtures are
available to connect to the measurement jacks
(BNC jacks
(p. 5)).
Alternatively,
commercially
available cables,
such as the 1.5D2 V coax, can be
used (p. 24)
Overview Chapter 1
1.1 Product Overview and Features
11
1
12
Ultra Fast and Accurate Measurements
Increase Productivity
The factory default settings are optimized for chip-component resistance measurements. Enhanced contactto-measurement and contact check-to-determination,
within 1 ms.
When using the low-power resistance measurement
and the 100 mΩ to 10 Ω ranges, the offset-voltage compensation (OVC) function minimizes the effects of thermal emf (p. 65).
Because measurement results are judged as pass/fail
with a 10 ppm resolution, it is ideal for high-speed Class
B resistor testing.
High-Speed Data Output and Ample Memory
The Data Output function transfers measured data at
5 ms/sample, even via RS-232C.
Up to 30,000 measurements can be stored, and all
data can be exported at the end of measuring each
reel.
This function is ideal for system setup, debugging and
process management.
Multiple Interfaces
EXT. I/O is a noise proofed structure isolated from the
measurement and control circuits (p. 95).
All data can be acquired in real time using the built-in
38.4-kbps high-speed RS-232C interface.
Connect the commercially available printer with a serial interface to print the measurement values and statistical calculation results (p. 89)
The GP-IB interface can also be used for Model
RM3542-51 (specified when shipping (p. 109)).
Low-Power Function (p. 28)
For ranges from 1000 mΩ to 1000 Ω, the low-power
resistance measurement is provided to minimize the
measurement current. Safely measure devices that
are otherwise difficult to measure with high current,
such as ferrite-bead and multilayer inductors.
Clearly Visible Display and Intuitive Operation
The high-contrast LCD provides clear visibility, helping to avoid setting mistakes. The optimum range is
selected automatically when comparator thresholds
are entered.
The Auto Memory Function Is Convenient
for Sampling Tests(p. 81)
The auto memory function is convenient for sampling
tests after screen-printing.
When the measurement values become stable, the
measurement value is automatically acquired and statistical calculations are performed at the same time.
The beeper gives a notification when the specified
number of values are stored.
Selecting [PRINT] (screen display) prints the measurement values and statistical calculation results(p.
93).
Fixtures for Component Measurements (p. 5)
The BNC-type measurement jacks exhibit good noise
immunity.
Ready availability and easy assembly ensure a
smooth system setup.
Various test fixtures are available for Hioki LCR HiTesters.
Features
1.1 Product Overview and Features
Reliable Contact Checks (p. 50)
Contact checking (that was previously performed before and after measuring) is now performed during
measurement, so probe bounce and contact resistance
fluctuations can be detected. Contact checking time
can be shortened, improving tact times.
Features
Measurement Circuit Strongly Immune to
Contact Resistance Fluctuations
The effects of contact resistance fluctuations are reduced even when scattering occurs near the end of
probe life. Such effects are minimized by the fast response of the measurement circuit.
Contact Improvement Function
(Contact Improver) (p. 52)
The Contact Improver function improves bad contacts
between probes and test samples. Contacts errors are
reduced by penetrating oxidation and impurities between probes and samples.
Reducing contact errors can increase productivity and
quality. The intensity of the contact improver function
can be adjusted according to probe type.
Reject Faulty Data - Voltage Level Monitor
Function (p. 55)
When the contact resistance of the H
CUR
and L
CUR
leads fluctuates, the measurement current changes
momentarily. Such momentary changes are not detectable by typical contact checking.
The Voltage Level Monitor Function indicates a contact
error if the detection voltage changes significantly. It
can enhance the reliability of the measurement value.
Minimize Human Error and Risk
- Settings Monitor Function (p. 59)
If the settings are found to be different after comparing
the setting conditions of two instruments, an alarm is
sounded to prohibit the TRIG input. Helps to prevent
human errors by avoiding setting mistakes.
Reliable Four-Terminal Measurement Probe Short-Circuit Detection Function (p.
57)
If a conductive foreign object is present between the
POT and CUR probe tips, the reliable four-terminal
measurements cannot be maintained. When not
measuring, resistance between the POT and CUR
probe tips is measured and short-circuit probe anomalies are detected.
Strong Electrical Noise Immunity
The specified measurement accuracy is achieved
even with a ±1.5 kV mixed pulse noise. The floating
measurement section design is highly impervious to
electrical noise, minimizing the effect on measurement values even when turning large-induction motors on and off.
The free-range power supply input (90 to 264 V) is
essentially unaffected by voltage fluctuations, so stable measurements are possible even under poor
power conditions.
DUT
Foreign Object
POT
CUR
DUT electrode
Previously
RM3542A
Contact Condition
Contact
Check
Measuring
Probe Bounce
Contact
Condition
Detection
Voltage
Error
Good Contact
Poor Contact
An error occurs
because the detection
voltage changes significantly.
Good Contact
ERROR
Measurement
Contact Check
Contact Condition
Contact Improvement
Function (Contact
Improver)
Contact Improvement
Measuring
Contact Check
ONON
13
1.1 Product Overview and Features
1
14
AB
C
D
E
F
G
H
I
E
D
1.1 Product Overview and Features
Block Diagram
• A constant current (determined by the measurement range) is applied between the H
voltage is measured between the H
voltage (B) by the constant current flow (A). (
POT
and L
terminals. The resistance value is obtained by dividing the measured
POT
A, B)
CUR
and L
terminals while
CUR
• The effects of a large offset voltage, such as from thermal emf, are reduced by reversing the current and measuring
twice in positive and negative directions (A). (A)
• The constant current source (A) and voltmeter (B) circuit designs are largely unaffected by contact resistance. (A, B)
• Faulty measurement values caused by unstable or chattering contact conditions can be eliminated by monitoring (C)
the detection voltage (B) waveform (voltage level monitor function). (B, C)
• The voltmeter is provided with sufficient time for integration (the default setting is 0.3 ms) to achieve stable measure-
ments. (The integration time can be reduced to 0.1 ms to support higher speeds.) (B)
• Before measuring, the Contact Improver circuit (D) optimizes the contact when the probes touch the DUT. (D)
• Also, performing contact checking (E) before measuring can detect short circuits between the CUR and POT terminals
caused by a clogged probe tip (probe short-circuit detection function). (
E)
• When measurement starts, the contact check circuit (E) and constant current monitor (F) are activated to monitor for
faulty conditions while measuring. (
E, F)
• The dual CPU (C and G) design provides ultra-high-speed measurements and a fast system response. (C, G)
• Protection from electrical noise is provided by the isolation between the Measurement and Control blocks (H). (H)
• The 90 V to 264 V wide range switching power supply (I) can provide stable measurements even in poor power quality
environments. (I)
15
Display Screen
Monochrome graphical LCD
There are three screen types:
Measurement, Basic Settings and
Detailed Settings.
Screen Configurations (p. 17)
F1 - F4 key
(F Key: General)
Selects the corresponding
item on the right side of the
display.
Judging the Measurement Values
(p. 36)(Comparator Function)
Set a reference value and range for judging
the measurements, which can be confirmed
by the COMP indicators.
Select this to judge the measurement values relative to a reference
value and tolerance (%).The REF%
setting display appears.
Press this button to judge the measurement values relative to the setting range (absolute value).The
ABS setting display appears.
Setting
POWER Button
Turns the instrument on and
off. (p. 25)
• Off: power is off
(When power is not supplied)
• Red light: power is off
(when power is supplied)
• Green light: power on
Turning the Power
On and Off
Entering numerical values
Enter a numerical value.
(these are called the numeric keys)
Switches the sign of a numerical value.
Selects the unit of measure.
Sets the tolerance values.
Deletes the value in the selected field.
Accepts the displayed comparator threshold values.
Aborts comparator setting and
returns to the previous display.
Selecting the setting contents
(we call these "F keys")
Selects the corresponding
item on the right side of the
display.
Cursor keys
Move among the displayed
setting items.
The cursor location is indicated by reverse characters.
Measurement jacks
Connect measurement probes and fixtures (p. 23).
• H
CUR
jack: Current source terminal
• H
POT
jack: High voltage detection
terminal
• L
POT
jack: Low voltage detection
terminal
• L
CUR
jack: Current detection termi-
nal
• GUARD jack: Shield terminal
(for the measurement of GND)
See "Before Measuring" (p. 10)
Connecting Probes
COMP indicator
Displays Comparator
Results (p. 36).
Hi The measurement
value is above the
upper limit.
IN Pass (meets crite-
ria)
Lo The measurement
value is below the
lower limit.
Viewing the
Comparator
Results
Viewing the
Measurement Values
and Settings
Buzzer
beeps.
1.2 Names and Functions of the Parts
1.2 Names and Functions of the Parts
Front Panel
1
16
Serial Number
Shows the serial number.Do not remove this
label, as it is required for product support.
Connect the supplied power cord (p. 22).
See "Before Turning Power On" (p. 9)
Connecting the Power Cord
RS-232C Connector
The RS-232C interface can be used to connect to
a PLC or computer (p. 109).
It is also used to connect to a commercially available printer with a serial interface for printing (p.
89).
RS-232C Communications
Printer Output
GP-IB Connector
(RM3542-51 only)
The GP-IB interface can be used to connect to a computer
(p. 109).
GP-IB Communications
SET MONITOR Connector
Connect another instrument to compare the settings of two units (p. 59).
See "Before Connecting to the RS-232C Con-
nector or SET MONITOR Connector" (p. 10)
Compare Two Instruments
EXT. I/O Connector
Connect to a PLC or I/O board to control
the measurement start time, and to acquire the comparator results (p. 95).
See "Before Connecting EXT. I/O
Connector" (p. 9), "Before Measuring" (p. 10)
External Control
Bottom
Panel
Stand
When using the stand
Extend the stand until it clicks into place.
Make sure to extend both legs of the stand.
Collapsing the stand
Fold in the stand until it clicks into place.
This instrument can be rack mounted.
See: Rack Mounting (p. A8)
Please retain the parts removed from this instrument to be used again.
1.2 Names and Functions of the Parts
Rear Panel
17
Detailed Settings Screen (p. 19)
Measurement Settings screens
[MEAS SETTINGS]
Data Memory Setting screen[DATA SETTINGS]
System screens[SYSTEM]
Normal display (measurement screen) (p. 18)
Basic Settings screen (p. 18)
Returns to previous screen.
Indicates a Continued Screen.
Returns to previous screen.
1.3 Screen Organization
1.3 Screen Organization
The instrument has three general display screen types: Measurement, Basic Settings and Detailed
Settings.
See "11.3 Error Displays and Solutions" "Error Displays and Solutions" (p. 197) for error displays.
The screen examples in this manual are reversed (black on white) for the best visibility on the printed page. However, the
instrument screens can actually be displayed only with white characters on a black background.
1
18
Normal display (measurement screen)
This screen normally appears while measuring. View
currently measurement values and measurement
conditions.
Some parts of the display depend on the comparator
mode and other settings.
Measurement
value
Settings Menu (corresponding to the F keys)
Displayed contents depend on the current function settings.
Parentheses ( ) indicate the corresponding F key.
MENU (F1) Displays the Basic Settings screen.
PRINT (F2) Printing (p. 91)
Appears only when the interface is set
for the printer.
STAT (F3) Statistical calculation results (p. 84)
Appears only when statistical calculation is enabled
NUMBER (F4) Sets the Auto-Memory number (p. 81).
Appears only when the auto-memory
function is enabled
Displays the memory number, the number of passed and failed products, in
the lower left of the screen.
UNDO (F3) Deletes the previously stored measure-
ment and calculation result
(executes only once) (p. 86)
Appears only when the calculation result screen is displayed.
ALLCLR (F4) Clears all memory and calculations (p.
86).
Appears only when calculation results
are displayed.
LOCAL (F1) Cancels the remote status (p. 116).
UNLOCK (F1) Cancels the key-lock status (Hold for
one second) (p. 68).
Criteria Setting Values (p. 36)
Displayed contents depend on the
selected comparator mode.
(Ex.: REF% mode)
To display the Basic Settings screen
Measurement Conditions
Shows current setting contents. Displayed contents depend on
the current settings.
INT/ EXT Trigger source type (p. 31)
Ω Measurement ranges (p. 32)
FAST/ MED/ SLOW Measurement Speed (p. 29)
0ADJ/
OFF (no display)
Appears only when the zero-adjustment is enabled (p. 34).
OVC/
OFF (no display)
(OVC: offset voltage compensation)
Appears only when the offset voltage
compensation is enabled (p. 65).
LP/
OFF (no display)
Appears only when the low-power
resistance measurement function
is enabled (p. 28).
S/ OFF (no display) Appears when scaling function is
enabled (p. 46)
NUM Appears only when numeric input is
enabled.
RMT Remote status(p. 116)
M.LOCK Disables all operations except the
comparator settings (p. 67).
F. LOC K Disables all operations including
the comparator settings (p. 67)
Basic Settings screen
Make basic measurement condition settings on this screen.
Measurement speed and range can be changed while
viewing the measurement values (when the Trigger
source is set to the internal trigger [INT]).
TRG
Changing the trigger source (start control
method) (p. 31).
When selecting [TRG: EXT], [MANU] appears by
pressing the F4 key (Measures manually once).
RANGE Change the range (p. 32).
SPEED Change the measurement speed (p. 29).
0ADJ Zero-adjustment function ON/OFF (p. 34)
COMP Comparator function ON/OFF(p. 36)
LOCK Key-lock function ON/OFF (p. 67)
Measurement condition
settings
Move with cursor keys.
Measurement condition
setting conditions
Return to previous screen
To the Measurement Settings screen [MEAS SETTINGS]
To the Data Memory Setting screen [DATA SETTINGS]
To the System screen [SYSTEM]
MISC To display the Detailed Settings screen.
1.3 Screen Organization
Measurement Settings screens
[MEAS SETTINGS]
Set instrument system-related settings on this screen.
SET MONITOR Two units measurement condition comparison
ON/OFF(p. 59)
PROBE CHECK Probe short-circuit detection function ON/OFF
(p. 57)
RETRY Retry function setting (p. 62)
VOLT LIMIT Sets voltage limit function to ON/OFF (p. 64)
TRIG EDGE (EXT. I/O) Set the trigger rising/falling edge
(p. 106)
EOM (EXT. I/O) EOM (end-of-measurement signal)
output setting (p. 105)
INTERFACE Communications interface settings(p. 113)
PRINT MODE Set printing method (p. 91)
LOW POWER Low-power resistance component
measurement ON/OFF(p. 28)
JUDGE BEEP Comparator beeper settings (p. 70)
KEY BEEP Key beeper ON/OFF (p. 69)
CLOCK (Y-M-D) Internal clock settings (p. 72)
LINE FREQ Power source frequency settings (p. 71)
CONTRAST Adjust screen contrast (p. 73)
BACKLIGHT Adjust screen backlight (p. 74)
RESET Initializing (p. 75)
ADJUST Instrument Adjustment (p. A13)
System screens
[SYSTEM]
Shows detailed settings for measurements.
Use when adjusting the measurement speed, stability and
measurement fault detection functions.
DELAY1 Adjust the delay between the probing and
trigger input (p. 44).
DELAY2 Adjust the target electrical response (p. 44).
SCALING
(A*R+B)
Compensate the measured value using scaling
function (p. 46)
INT(FAST/ MED/
SLOW)
Make fine adjustment to the integration time
(p. 48).
CONT CHECK Contact check threshold setting (p. 50)
CONT IMP Contact improver function setting (p. 52)
VOLT MONITOR Voltage level monitor function setting (p. 55)
CURRENT
MODE
Current mode setting (p. 56)
Data Memory Setting screen
(Save, analysis, output)
[DATA SETTINGS]
These are settings for memory and statistical calculation
functions.
AUTO MEMORY Auto-memory function ON/OFF (p. 81)
STATISTICS Statistical calculation ON/OFF (p. 84)
DATA OUT Auto-export the measurement values
(communication) ON/OFF (p. 87)
Detailed Settings
19
1.3 Screen Organization
1
20
1.3 Screen Organization
21
Installing this instrument (p. 8)
1
Rear Panel
Front Panel
Connecting Measurement Probes
(p. 23)
Turning Power On (p. 25)
5
Connect to the test sample.
After measurements are completed,
turn the power off. (p. 25)
Connect the external interface
(as needed)
4
• Using the printer (p. 89)
• Using RS-232C or GP-IB interface
(p. 109)
• Connecting to the PLC or I/O Board
(p. 95)
• Automatically comparing the settings of
two instruments
(Settings Monitor function) (p. 59)
2
3
2
3
4
5
Setting the Instrument (p. 27)
6
Connecting the Power Cord (p. 22)
Measurement Preparations Chapter 2
Be sure to read the "Operating Precautions" (p.8) before installing and connecting this instrument.
See "Appendix 4 Rack Mounting" (p. A8) for rack mounting.
2
22
Rear Panel
1 Confirm that the supply voltage matches the instrument,
and connect the power cord to the power inlet on the instrument.
2 Connect the plug of the power cord to the outlet.
The POWER button on the front panel lights up in red.
In event of a power outage, operation resumes with the
same settings when power is restored (breaker reset, etc.).
Power inlet
2.1 Connecting the Power Cord
2.1 Connecting the Power Cord
• Before turning the instrument on, make sure the supply voltage matches the voltage
indicated on its power connector. Connection to an improper supply voltage may
damage the instrument and present an electrical hazard.
• To avoid electrical accidents and to maintain the safety specifications of this instru-
ment, connect the power cord only to a 3-contact (two-conductor + ground) outlet.
• Before using the instrument, make sure that the insulation on the power cord is
undamaged and that no bare conductors are exposed. Any damage can cause electric shock, contact your dealer or Hioki representative.
To avoid damaging the power cord, grasp the plug, not the cord, when unplugging it from the
power outlet.
2.2 Connecting Measurement Probes and Test Fixtures
Example of defeated guard measurement
A
Connecting measurement probes
Connecting a fixture
Connect it directly to the measurement
jacks with the label side facing up, and
fix it with the levers on the left and right
sides.
Connect the red plugs to the
H
CUR
and H
POT
jacks, and
the black plugs to the L
CUR
and L
POT
jacks.
Black plugs
Red plugs
Measurement jack
connector guide
Lock
Cable BNC
connector groove
2
1
Align the slots in the BNC plug
with the guide pins on the jack on
the instrument, then push and
twist the plug clockwise until it
locks.
Disconnecting BNC connectors
Push the BNC plug, twist it counterclock-wise, and pull it out.
Making and extending your own probes (p. 24)
2.2 Connecting Measurement Probes and Test
Fixtures
23
Connect your measurement probes, optional Hioki probes, or test fixtures to the measurement
jacks.
Refer to "Options" (p.5) for details of the Hioki option.
See the instructions provided with the fixture for operating details.
• Do not apply any voltage to the measurement jacks. Doing so may damage the unit.
• When disconnecting the BNC connector, be sure to release the lock before pulling off the
connector. Forcibly pulling the connector without releasing the lock, or pulling on the cable,
can damage the connector.
• We recommend using optional Hioki fixtures.
• Use the GUARD jack only for the HighResistance Measurements shield, and
avoid more than a 10 mA current flow.
This jack is not for guarding the network
resistance measurements.
Connection Methods
2
24
Wiring Diagram
Before Wiring
• Twist the H
POT
and L
POT
wires, and the H
CUR
and L
CUR
wires together.
If not twisted together, measurement values may be unstable and errors may occur when measuring with
low-power resistance, or low resistance values.
• See the block diagram (p. 14) for the internal circuit details.
• Probes and measuring objects should be shielded at BNC or GUARD jack potential.
• Measurement probe length: keep it within 2 m (with a conductor resistance of 500 mΩ/m or less).
Long cables are more susceptible to noise, and the measurement values may be unstable.
• Extensions should maintain the four-terminal structure. If the wiring is converted to a two-terminal
structure in wiring, the correct measurement may not be possible due to the effects of the wiring and
contact resistance.
• Cables and measuring objects should be shielded.
• After extending the measurement probes, verify that the operation and accuracy conform to the
"Measurement Specifications" (p.192).
• When cutting off the ends of the optional measurement probes, make sure that the H
CUR
, H
POT
,
L
POT
, and L
CUR
shield wires and core wires do not come into contact. Such contact will made accu-
rate measurement impossible.
When Extending the Measurement Probes
Observe the following when extending the measurement probes.
2.2 Connecting Measurement Probes and Test Fixtures
Making Your Own Measurement Probes
Recommended measurement probe specifications
Conductor resistance 500 mΩ/m or less
Capacitance 150 pF/m or less
Cable dielectric material
Connector insulating material
Length 2 m or less
Example: JIS standard 3C-2V, 1.5D-2V MIL standard RG-58A/U
*. Teflon is a registered trademark of E. I. du Pont de Nemours and Company.
Polyethylene (PE), Teflon* (TFE), Polyethylene foam (PEF)
Insulation resistance 10 GΩ or more
Te fl o n* (TFE), Polybutylene terephthalate (PBT)
Insulation resistance10 GΩ or more
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