Hioki DM7275-01, DM7275-02, DM7275-03, DM7276-01 Instruction Manual

DM7275

DM7276

DM7275-01

DM7275-02

DM7275-03

DM7276-01

DM7276-02

DM7276-03

Instruction Manual

PRECISION DC VOLTMETER

DM7275A961-00 16-12H www.

.com

EN [email protected]

Measurement process

Measurement process

This section describes voltage measurement as performed in a typical application.

Example use: Measuring a battery’s voltage

Preparations

(1) Position the instrument as desired. (p. 7)

50 mm or more 50 mm or more 150 mm or more

(2) Perform the pre-measurement inspection. (p. 24)

(3) Connect the power cord. (p. 25)

Rear

Power cord To outlet

(4) Connect the measurement cables to the measurement terminals. (p. 26)

6

7

8

(5) Connect the temperature sensor to the TEMP.SENSOR connector.

(When performing temperature measurement or using the temperature compensation) (p. 27) 9

10

(6) Configure and connect the external interface (as necessary).

• Using the USB interface (p. 98)

• Using the RS-232C interface (p. 100)

• Using the GP-IB interface (p. 102)

• Using the LAN interface (p. 104)

• Using a USB flash drive (p. 115)

• Using the EXT I/O connector (p. 125)

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Measurement process

(7) Turn on the instrument. (p. 28)

(8) Set the time and date. (p. 30)

Measurement

(9) Set the measurement range. (p. 35) (default setting: AUTO range)

When using the auto-range setting, the instrument will automatically select the optimal range.

To fix the range manually: Manual range (p. 35)

(10) Set the measurement speed. (p. 35) (default setting: MEDIUM)

(11) Switch the measured value display. (p. 18) (default setting: V)

(12) Connect the measurement cables to the measurement target. (p. 31)

Black Red

(13) Perform measurement. (p. 37)

•To enable the trend display (time-axis display) or to display judgment results: (p. 43)

•To display information other than measured values (error display): (p. 46), (p. 176)

•To assign names to measured values: (p. 49)

•To hold the measured value display: (p. 37), (p. 70)

•To change the number of display digits: (p. 48)

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Contents

Contents

Introduction ................................................ 1

Verifying Package Contents

..................... 2

Safety Information

.....................................

5

Operating Precautions ..............................

7

1

Overview 13

1.1 Product Overview ........................... 13

1.2 Features .......................................... 13

1.3 Part Names and Functions ............

14

1.4 Screen Layout

................................

16

1.5 Operating the Instrument

..............

17

„ Changing settings .......................................17

„ Returning to the previous screen ................17

„ Switching the measured value display ........18

„ Changing the range ....................................18

„ Changing the measurement speed .............19

„ Starting measurement ................................20

1.6 How to Use This Manual

................ 21

2

Preparing for

Measurement 23

2.1 Preparation Process ...................... 23

2.2 Performing the Premeasurement Inspection ...............

24

2.3 Connecting the Power Cord ..........

25

2.4 Connecting the Measurement

Cables (to the Instrument) .............

26

2.5 Connecting the Temperature

Sensor .............................................

27

2.6 Turning the Instrument On and

Off ....................................................

28

2.7 Setting the Time and Date

.............

30

3.5 Measurement Error Displays

(Displays Other Than Measured

Values) .............................................

46

„ Measurement error detection order ............47

3.6 Changing the Number of Display

Digits ...............................................

48

3.7 Displaying Labels (Assigning

Names to Measured Values) ..........

49

4

Judging Measured

Values 51

4.1 To Obtain Accurate Judgments

Even When the Polarity of the

Measurement Target (Battery,

etc.) Is Reversed .............................

52

4.2 Comparator Measurement

(Using a Single Judgment

Standard) ........................................

53

„ To check judgments aurally ........................55

„ To perform judgment after measured values stabilize ...........................................56

„ To output judgment results to an external device or to print judgment results 56

4.3 BIN Measurement (Using

Multiple Judgment Standards) ......

57

„ To output judgment results to an external device or to print judgment results 59

5

Saving and Loading

Measurement

Conditions (Internal

Memory) 61

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3

Measurement 31

3.1 Connecting the Measurement

Cables (Measurement Target) ....... 31

3.2 Setting the Measurement Range ..

35

3.3 Setting the Measurement Speed ...

36

3.4 Starting Measurement

...................

37

„ Continuous measurement ...........................37

„ Trigger measurement (measurement with user-specified timing) ..........................38

„ Storage of measurement data in the instrument’s internal memory ......................42

„ Displaying trends, bar graphs, statistics, and judgment results ..................................43

„ Checking the voltage trend .........................45

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5.1 Saving Measurement Conditions

(Panel Save Function) ....................

62

5.2 Loading Measurement

Conditions (Panel Load Function) 64

5.3 Changing the Panel Name

.............

65

5.4 Deleting a Panel

.............................

66

6

Useful Functionality 67

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6.1 Obtaining Stable Measured

Values ..............................................

67

„ Setting the integration time .........................67

„ Reducing measured value variability

(smoothing function) ...................................69

6.2 Auto-hold Function

........................

70

6.3 Contact Check

................................

71

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Contents

6.5 Correcting Measured Values

.........

77

„ Adjusting the zero-point (NULL function) ....78

„ Compensating the effects of temperature

(temperature compensation function) ..........80

„ Correcting measured values using a linear expression (scaling function) ............82

6.6 Statistical Calculations

..................

84

„ Displaying, clearing, and printing statistical calculation results .......................85

7

System Settings 87

7.1 Key Lock (Disabling Instrument

Operation) .......................................

87

7.2 Buzzer Settings

..............................

88

7.3 Adjusting the Screen Brightness

.

89

7.4 Changing the Screen Color

...........

89

7.5 Adjusting the Touch Panel

Position ...........................................

90

7.6 Setting the Power Supply

Frequency

.......................................

90

7.7 Selecting Startup Load Settings

and a Panel ..................................... 91

7.8 Setting Output Formats

................. 92

7.9 Resetting the Instrument

(Reverting the Instrument to Its

Factory Settings)

............................ 93

„ List of default settings .................................94

8

Preparing to Use USB,

RS-232C, GP-IB, and

LAN Control 97

8.1 Overview of Interfaces and

Associated Features ......................

97

8.2 Preparing to Use an Interface

(Connection and Settings) ............

98

„ Using the USB interface .............................98

„ Using the RS-232C interface ....................100

„ Using the GP-IB interface .........................102

„ Using the LAN interface ............................104

8.3 Communications Settings

...........

109

„ Communications monitor (displaying communications commands) ....................109

„ Setting the format for measurement ......... 110

„ Setting the model name acquired by commands ................................................110

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Outputting Data 111

9.1 Interface Settings ..........................111

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9.3 Data Output Settings ....................113

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Using a USB Flash

Drive 115

10.1 Overview

........................................

115

10.2 Connecting a USB Flash Drive

....

116

10.3 Setting the Interface

......................

117

10.4 Setting the Output Data Type

.......

117

10.5 Outputting Data (USB Flash

Drive) ..............................................

118

„ Outputting measurement data or screenshots ..............................................118

„ Outputting all measurement data .............. 119

10.6 Outputting and Loading

Measurement Conditions (USB

Flash Drive) ...................................

120

„ Outputting measurement conditions .........120

„ Loading measurement conditions .............122

10.7 Files

............................................... 123

„ File format .................................................123

11

External Control (EXT I/

O) 125

11.1 External Control Measurement

Process .........................................

125

11.2 Switching between Current Sink

(NPN) and Current Source (PNP)

126

11.3 Connections (Instrument and

Control Device) .............................

127

„ Instrument connector and compatible connectors ................................................128

„ Signal functions ........................................129

„

„ Electrical specifications .............................134

„

Internal circuit architecture ........................133

Example connections ................................134

11.4 Configuring External Input and

Output ...........................................

136

„ Input filter ..................................................136

„ EOM signal output type ............................137

11.5 Input Test/Output Test

.................

138

11.6 Timing Chart

................................. 139

„ Timing from the start of measurement to acquisition of judgment results .................139

„ Panel load timing ......................................141

„ Output signal status when the instrument is turned on .............................142

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„ Measurement process (starting measurement from an external device and loading judgment results) ...................142

12

Printing 143

12.1 Printer Settings ............................

144

12.2 Connecting the Printer to the

Instrument .....................................

146

12.3 Configuring the Instrument

.........

146

12.4 Printing

..........................................

147

„ Print examples ..........................................148

13

Specifications 151

13.1 General Specifications

................

151

13.2 Measurement Specifications

.......

152

„ Basic specifications ..................................152

„ Accuracy specifications ............................155

13.3 Functional Specifications

............

157

13.4 Interface Specifications

...............

163

14

Maintenance and

Service 167

„ Calibration and repair ...............................167

„ Transporting the instrument ......................167

„ Replacement parts and their service lives 167

14.1 Q&A (Frequently Asked

Questions)

....................................

168

„ 1. General issues ......................................168

„ 2. Measurements ......................................169

„ 3. Communications ...................................171

„ 4. EXT I/O .................................................173

„ Frequently Asked Questions for External

Control (EXT I/O) ......................................175

14.2 Cleaning

........................................

175

14.3 Error Displays

...............................

176

14.4 Disposing of the Instrument

.......

180

15

License Information 181

Appendix Appx.1

Appx. 1 Block Diagram

..................

Appx.1

Appx. 2 Measuring the Enclosure

Potential of Laminated

Lithium-ion Batteries

.......

Appx.2

„ Internal insulation defects in lithium-ion batteries ...............................................Appx.2

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Appx. 3 Causes of Error in

Voltage Measurement ......

Appx.5

„ Thermal electromotive force ................Appx.5

„ Effects of input resistance ....................Appx.6

„

„ Effects of high-voltage measurement ..Appx.7

„

Effects of bias current ..........................Appx.6

Effects of burst noise ...........................Appx.7

Appx. 4 Noise Countermeasures

.

Appx.8

„ Effects of induced noise .......................Appx.8

„ Effects of conductive noise ................Appx.10

Appx. 5 Self-calibration

................

Appx.11

Appx. 6 Measuring Multiple

Targets ............................

Appx.12

Appx. 7 Rack Mounting

...............

Appx.14

„ Rack-mounting hardware reference figures ................................................Appx.14

„ Installation instructions ......................Appx.17

Appx. 8 Outline Drawings

...........

Appx.21

Appx. 9 Calibration

......................

Appx.22

Appx. 10 Adjustment

.....................

Appx.23

Index Ind.1

11

12

13

14

15

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v

Introduction

Introduction

Thank you for purchasing the Hioki DM7275, DM7276 Precision DC Voltmeter. To obtain maximum performance from the instrument, please read this manual first, and keep it handy for future reference.

1

DM7275

DM7275-01

DM7275-02

DM7275-03

Model

DM7276

DM7276-01

DM7276-02

DM7276-03

LAN







USB

Interface

GP-IB

 -







-

RS-232C

-

-



2

3

 : Available, −: Not available

Registered trademarks

• Microsoft, Windows 7 and Windows 8 are either registered trademarks or 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.

Notations

*

SET

(bold)

Additional information is presented below.

Names and keys on the screen are indicated with bold characters.

[ ] Operation keys are indicate in [ ] square brackets.

Unless otherwise specified, “Windows” represents Windows 7 and Windows 8.

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5

6

Accuracy

We define measurement tolerances in terms of f.s. (full scale), rdg. (reading) and dgt. (digit) values, with the following meanings: f.s.

rdg.

dgt.

(Maximum display)

The maximum displayable value.

(Reading)

The value currently being measured and indicated on the measuring instrument.

(Resolution)

The smallest displayable unit on a digital measuring instrument, i.e., the input value that causes the digital display to show a "1" as the least-significant digit.

See “Accuracy specifications” (p. 155).

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Verifying Package Contents

Verifying Package Contents

• When you receive the instrument, inspect it carefully to ensure that no damage occurred during shipping. In particular, check the accessories, panel switches, buttons, keys and connectors. If damage is evident, or if it fails to operate according to the specifications, contact your authorized

Hioki distributor or reseller.

• Store the packaging in which the instrument was delivered, as you will need it when transporting the instrument.

Check if the package contents are correct.

DM7275 or DM7276

Application disc (CD)

(Communication Command

Instruction Manual (PDF) and USB

Driver are included)

•The latest version can be downloaded from our web site.

Accessories

Power supply cord Instruction manual

(this document)

Instruction manuals may also be available in other languages.

Please visit our website at http://www.hioki.com.

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9243 graber

9243 graber

L4937 マグネットアダプ

タ 9243 graber

DM4910 熱電対

DT4911TestLead

L4937 マグネットアダプ

タ

L4937 マグネットアダプ

タ

L4937 マグネットアダプ

タ

DM4910 熱電対

DT4911TestLead

DT4912TestLead

L4930 接続ケーブル

L4931renketu

L4931 延長ケーブル

L4932(+9207-10cap)

L4933 コンタクトピン

L4935 ワニ口

L4936 バスバー

DT4911TestLead

L4934 小ワニグチ

マグネ付ストラップ

L4934 小ワニグチ

L4930 接続ケーブル

DT4912TestLead

DT4911TestLead

L4934 小ワニグチ

マグネ付ストラップ

9243 graber

Verifying Package Contents

DT4912TestLead

9243 graber L4931renketu

Options (Sold Separately)

reseller when ordering.

マグネ付ストラップ

9243 graber

DM4910 熱電対

Measurement cables (general voltage measurements)

タ

L4931renketu

L4932(+9207-10cap)

L9207-10

Test Lead L9207-10

Pin diameter: φ 2 mm

DT4911TestLead

DT4912TestLead

DT4912TestLead

タ

1

L4933

Contact Pin Set

Pin diameter: φ 1 mm

L4934 小ワニグチ

2

L4930

Connection Cable Set

Length: 1.2 m

L4931

Extension Cable Set

Length: 1.5 m

With coupling connector

DT4912TestLead

L4930 接続ケーブル

L4930 接続ケーブル

L4930 接続ケーブル

L4931renketu L4931renketu

L4931renketu

L4931 延長ケーブル

L4931 延長ケーブル

L4932(+9207-10cap)

L9207-10

L4934

Small Alligator Clip Set

Maximum clip width:

φ 4 mm

L4935

Alligator Clip Set

Maximum clip width:

φ 25 mm

L4933 コンタクトピン

9243

Grabber Clip

φ 2 mm

L9207-10

L9207-10

3

4

5

タ

L4934 小ワニグチ

マグネ付ストラップ

L4937 マグネットアダプ

タ

L4936

DM4910 熱電対

φ 25 mm

(Objects to be measured which are 30 mm or less can be clipped.)

6

L9207-10

L4937 マグネットアダプ

L9207-10

L9207-10

マグネ付ストラップ

L4934 小ワニグチ

L4933 コンタクトピン

L4932

Test Pin Set

Pin diameter: φ 2 mm

7

マグネ付ストラップ

CATIV*

600 V

8

Measurement cable CATIII*

L9207-10, L4932

L4930, L4931, L4935

L4933

L4934

1000 V

-

-

L4935 ワニ口

-

-

600 V

1000 V

1000 V

-

300 V

9243 1000 V

L4936 600 V

L4936 バスバー

*: Measurements over measuring instrument's rated voltage are not possible.

See “Inspection before use” (p. 7)

Temperature measurements

Z2001 Temperature Sensor

-

-

-

L4932(+9207-10cap)

L4933 コンタクトピン

9

10

L9207-10

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L4936 バスバー

3

Verifying Package Contents

Communication interface

9637 RS-232C Cable

9151-02 GP-IB Connector Cable

L1002 USB Cable (A - B)

9642 LAN Cable

For printing

9442 Printer

9443-01 AC Adapter

9443-02 AC Adapter

1196 Recording Paper

9444 Connection Cable

9 pins-9 pins/1.8 m/cross

2 m

A-B type

For Japan

For countries other than Japan

To connect the instrument and the 9442 printer

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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.

DANGER

Mishandling during use could result in injury or death, as well as damage to the instrument. Be certain that you understand the instructions and precautions in the manual before use.

WARNING

• With regard to the electricity supply, there are risks of electric shock, heat generation, fire, and arc discharge due to short circuits. If persons unfamiliar with electricity measuring instrument are to use the instrument, another person familiar with such instruments must supervise operations.

• This instrument is measured on a live line. To avoid electric shock when measuring live lines, wear appropriate protective gear, such as insulated rubber gloves, boots and a safety helmet.

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Notations

In this manual, the risk seriousness and the hazard levels are classified as follows.

DANGER

WARNING

CAUTION

IMPORTANT

Indicates an imminent 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 a malfunction.

Indicates information related to the operation of the instrument or maintenance tasks with which the operators must be fully familiar.

Indicates a high voltage hazard.

If a particular safety check is not performed or the instrument is mishandled, this may give rise to a hazardous situation; the operator may receive an electric shock, may get burnt or may even be fatally injured.

Indicates a prohibited action.

6

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8

9

Indicates the action which must be performed.

10

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Safety Information

Symbols on the instrument

Indicates cautions and hazards.

When the symbol is printed on the instrument, refer to a corresponding topic in the Instruction Manual.

Indicates a grounding terminal.

Indicates DC (Direct Current).

Indicates AC (Alternating Current).

Indicates the ON side of the power switch.

Indicates the OFF side of the power switch.

Symbols for standards

Indicates the Waste Electrical and

Electronic Equipment Directive

(WEEE Directive) in EU member states.

Indicates that the product conforms to regulations set out by the EC

Directive.

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.

DANGER

• Using a measuring instrument in an environment designated with a highernumbered category than that for which the instrument is rated could result in a severe accident, and must be carefully avoided.

• Using a measuring instrument without categories in an environment designated with the CAT II to CAT IV category could result in a severe accident, and must be carefully avoided.

This instrument conforms to the safety requirements for CAT II 300 V measuring instruments.

CAT II: When directly measuring the electrical outlet receptacles of the primary electrical circuits in equipment connected to an AC electrical outlet by a power cord (portable tools, household appliances, etc.).

CAT III: 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.

CAT IV: When measuring the circuit from the service drop to the service entrance, and to the power meter and primary overcurrent protection device (distribution panel).

Distribution panel

Service entrance

Service drop Internal wiring

CAT III

CAT II

T CAT IV

Power meter

Fixed installation

Outlet

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Operating Precautions

Operating Precautions

Follow these precautions to ensure safe operation and to obtain the full benefits of the various functions.

Inspection before use

WARNING

If the measurement cable or the instrument is damaged, there is a risk of electric shock. Before using the instrument perform the following inspection.

• Before using the instrument, make sure that the insulation on the cables are undamaged and that no bare conductors are improperly exposed. Using the instrument under such conditions could result in electric shock. Replace the cable with those specified by our company.

• To prevent an electric shock, confirm that the white portion (insulation layer) inside the cable is not exposed. If a color inside the cable is exposed, do not use the cable.

• 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.

5

6

Installation environment

WARNING

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

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Operating Precautions

Installation method

CAUTION

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.

• Install the instrument with the bottom facing down.

• To prevent overheating, be sure to leave the specified clearances around the instrument.

50 mm or more 50 mm or more 150 mm or more

Rear

The stand can be used to lift the instrument's front panel. (p. 14)

（ p. Appx.14

）

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.

Handling the instrument

DANGER

To avoid electric shock, do not remove the instrument's case. The internal components of the instrument carry high voltages and may become very hot during operation.

CAUTION

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.

Precautions when using the included application disc

• Exercise care to keep the recorded side of discs free of dirt and scratches. When writing text on a disc’s label, use a pen or marker with a soft tip.

• Keep discs inside a protective case and do not expose to direct sunlight, high temperature, or high humidity.

• Hioki is not liable for any issues your computer system experiences in the course of using this disc.

Before connecting a power cord

WARNING

To avoid electrical accidents and to maintain the safety specifications of this

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Operating Precautions

Before connecting a measurement cable

DANGER

Measurement cables should only be connected to the secondary side of a breaker. Any short-circuit current at the secondary side will be cut-off by the breaker. Connections should never be made to the primary side of a breaker, because unrestricted current flow could damage the instrument and facilities if a short circuit occurs.

WARNING

To avoid electric shock and short-circuit accidents, use only the specified measurement cables to connect the instrument input terminals (HIGH and LOW terminals) to the circuit over 70 V DC to be tested.

Before connecting a temperature sensor

IMPORTANT

Connect the temperature sensor by inserting the plug all the way in the TEMP.SENSOR connector. Insufficient connection may cause larger errors in measured values.

Before turning the power ON

WARNING

Before turning the instrument on, make sure the supply voltage matches that indicated on its power connector. Connection to an improper supply voltage may damage the instrument and present an electrical hazard.

CAUTION

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.

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Operating Precautions

Before starting a measurement

Voltage measurements

DANGER

• The maximum rated voltage between input terminals and the ground is as follows.

CAT II: 300 V AC/DC

No measurement category: 800 V AC/DC

If their voltages are exceeded, this instrument will be damaged and personal injury will result. Therefore, do not perform measurement in this case.

• Maximum input voltage of the voltage measurement terminals is 1000 V DC,

10 5 VHz AC, 1500 V peak. However, voltages over 800 V can be measured only if the circuit to be measured is isolated from the ground. If their voltages are exceeded, this instrument will be damaged and personal injury will result.

Therefore, do not perform measurement in this case.

• To avoid electric shock, be careful to avoid shorting live lines with the measurement cables.

Temperature measurements

CAUTION

• To avoid damage to the instrument, do not apply voltage to TEMP.SENSOR connector.

• Temperature sensors are not waterproof. Do not soak the sensor in water.

IMPORTANT

• The object to be measured for temperature compensation and the temperature sensor should be given adequate time to adapt to the ambient temperature. If lesser time is given for adaptation to ambient temperature may cause larger errors.

• Handling temperature sensors with bare hands may cause induction noise resulting in unstable measured values.

• Temperature sensors are used to measure ambient temperature. Temperature sensors on the surface of the object to be measured cannot measure correct temperature of the object itself.

If there is a large difference in temperature between the ambient temperature and temperature of the object to be measured, use an aluminum tape to attach the temperature sensor onto the object while ensuring that the object is not short-circuited.

Before connecting the communication cables (USB, LAN, RS-232C, GP-IB)

CAUTION

Before connecting or disconnecting any communications cable, always turn off the instrument and equipment to be connected with. This may cause malfunction or damage.

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Operating Precautions

Before making a connection to the USB connector

CAUTION

• To avoid equipment failure, do not disconnect the USB cable while communications are in progress.

• Use a common ground for both the instrument and the computer. Use of different ground circuits will result in a potential difference between the instrument's ground and the computer's ground. If the USB cable is connected while such a potential difference exists, it may result in equipment malfunction or failure.

Before connecting to the RS-232C or GP-IB connectors

CAUTION

• Use a common ground for the instrument, computer and programmable controller.

Use of different ground circuits will result in a potential difference between the instrument's ground and grounds of the computer and programmable controller. If the communications cable is connected while such a potential difference exists, it may result in equipment malfunction or failure.

• 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 connecting a USB flash drive

CAUTION

• Inserting a USB flash drive upside down, backwards or in the wrong direction may damage the USB flash drive or the instrument.

• Some USB flash drives are susceptible to static electricity. Exercise care when using such products because static electricity could damage the USB flash drive or cause malfunction of the instrument.

With some USB flash drives, the instrument may not start up if power is turned on while the USB flash drive is inserted. In such a case, turn power on first, and then insert the USB flash drive.

It is recommended to try out operation with a USB flash drive before starting to use it for actual measurements.

Before switching the current sink (NPN) / current source (PNP)

CAUTION

• Never switch between NPN and PNP while the instrument's power is on.

3

4

5

6

1

2

7

8

9

10

• Configure the NPN/PNP setting based on the externally connected device.

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Operating Precautions

Before connecting to the EXT I/O connector

WARNING

To avoid electric shock or damage to the equipment, always observe the following precautions when connecting to EXT I/O connector.

• Always turn off the power to the instrument and to any devices to be connected before making connections.

• Be careful to avoid exceeding the rating of EXT I/O connector signal.

Before connecting a printer

WARNING

To avoid electric shock, turn off the power to all devices before plugging or unplugging any cable between the printer and the instrument.

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1 Overview

1

Overview

1.1 Product Overview

The Hioki DM7275 and DM7276 Precision DC Voltmeters can measure DC voltages from lithiumion batteries, electric double-layer capacitors, and other components as well as DC voltages output by sensors and other devices with a high degree of accuracy.

1

1.2 Features

High-accuracy measurement

The DM7275 and DM7276 deliver the following basic accuracy (in the 10 V range):

DM7275

DM7276

0.0020% rdg. +12 µV

0.0009% rdg. +12 µV

The DM7276 can measure a 4 V lithium-ion battery with accuracy of 48 µV.

Contact check function

When this function is enabled, measured values are displayed only when the measurement cables are properly connected to the measurement target. It is particularly useful as a way to ensure highly reliable results when measuring the potential on the exterior of a lithium-ion battery.

Temperature compensation

In addition to DC voltage, the DM7275/DM7276 can measure ambient temperature. When measuring a target that exhibits a high degree of temperature dependency, this function corrects voltage measured values using the measured temperature, making it possible to convert them to to voltage values at a reference temperature.

High-speed measurement and measured value memory

The DM7275/DM7276 can continuously save data to its 5000 data point internal memory at speeds of up to 1 ms. This capability can be used to monitor instantaneous voltage fluctuations or measure multiple targets.

Extensive interface options

The DM7275/DM7276 provides USB, LAN, RS-232C*, GP-IB*, and EXT I/O interfaces, enabling its use in a variety of applications.

*These interfaces are factory options that must be specified at the time of shipment.

Intuitive user interface

The DM7275/DM7276 has a 4.3” color LCD and an intuitive, touch-panel based user interface. It also provides extensive analytical functionality, including statistical calculations and trend plots.

Smooth integration into production lines

• Since the DM7275/DM7276’s free power supply specifications can accommodate a power supply from 100 to 240 V, it can be easily deployed on production lines overseas.

• The instrument’s communications monitor and EXT I/O test functions facilitate smooth debugging of testing systems.

• Judgment functions can be used to generate PASS/FAIL judgments based on the classification of measurement results into HI, IN, and LO categories (comparator function) or to rank targets into up to 10 categories (BIN function).

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Part Names and Functions

1.3 Part Names and Functions

Front 1

2

3

1 Display

(Touch panel)

5

2 Operation keys

4

View measured values, settings, and judgment results; configure instrument settings.

•Display the Settings screen and Measurement screen (measured values and judgment results) (p. 16).

•Configure settings (p. 17).

For more information: See “1.5 Operating the Instrument” (p. 17) .

[V/°C] key [AUTO] key

[NULL] key

Toggles display of temperature measured values.

Adjusts the instrument’s zero-point.

[

[RANGE]

 ] key

Enables auto-range operation (to automatically select an appropriate range).

Increases the range (to measure high voltages).

3 POWER button

(p. 28)

4 USB flash drive connector

5 Voltage measurement terminals

[RUN/STOP] key

[TRIG] key

Starts and stops measurement.

Starts measurement (to make measurements at the desired timing).

Switches the instrument’s power state.

OFF:

RED:

[  ] key

[SPEED] key

Decreases the range (to measure at a higher degree of resolution).

Changes the measurement speed.

The instrument is off (no power is being supplied).

The instrument is in the SLEEP state (power is being supplied).

GREEN: The instrument is on.

Outputs measurement data, screen data, and measurement conditions; loads measurement conditions (p. 115) .

Connect the measurement cables (p. 26) .

HIGH terminal: Connect the red cable.

LOW terminal: Connect the black cable.

See “Before connecting a measurement cable”(p. 9).

Bottom

When mounting the instrument in a rack

Be sure to collapse the feet all the way.

See: “Appx. 7 Rack Mounting” (p. Appx.14)

Foot

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Foot www.

When using the feet

Be sure to:

•Open the feet all the way, without stopping partway.

•Erect both feet.

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Part Names and Functions

Rear

2 3 4

1

10

9

8

1 Power inlet

7

2 NPN/PNP switch

3 GP-IB connector

4 RS-232C connector

5 TEMP.SENSOR connector

6 EXT I/O connector

7 USB connector

8 Serial number

9 LAN connector

10 Main power switch

6 5

Connect the power cord (p. 25) .

See “Before connecting a power cord”(p. 8).

Switches the EXT I/O between NPN and PNP modes (p. 126) .

Left: Current sink (NPN)

Right: Current source (PNP)

Used in GP-IB communications (p. 102) .

Connect the instrument to a computer with a GP-IB cable.

Used in RS-232C communications (p. 100) .

Connect the instrument to a computer, programmable controller, printer, or other device with an RS-232C cable.

Used to measure temperature (p. 27) .

Connect the Z2001 Temperature Sensor.

Used in external control (p. 125 ).

Connect the input signal from a programmable controller, I/O board, or other device to control the instrument.

See “Before connecting to the EXT I/O connector”(p. 12).

Used in USB communications (p. 98) .

Connect the instrument to a computer with a USB cable.

Do not remove the serial number as it is necessary for management purposes.

Used in LAN communications (p. 104) .

Connect the instrument to a computer with a LAN cable.

Turns the instrument’s main power supply on and off (p. 28) .

: Main power supply off

: Main power on

DM7275

DM7275-01

DM7275-02

DM7275-03

Model

DM7276

DM7276-01

DM7276-02

DM7276-03

 : Available, −: Not available

LAN







USB



Interfaces

GP-IB

−







−

RS-232C

−

−



1

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Screen Layout

1.4 Screen Layout

Measurement screen Settings screen

Touch the measurement parameter, measurement range, measurement speed, or MENU on the touch panel.

Screen name

Touch

DISP .

Touch

NUMERIC .

Touch [×] to close the screen.

Example: If you touch the measurement speed

Measurement screen + sub-display selection

Touch the item you wish to display on the sub-display.

See “Displaying trends, bar graphs, statistics, and judgment results”(p. 43)

Measurement screen + sub-display

Touch DISP .

Sub-display

Example: If you touch BAR GRAPH

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1.5 Operating the Instrument

The instrument is operated using the operation keys and the touch panel.

Changing settings

Settings are changed using the touch panel.

1

2

Operating the Instrument

1

Touch MENU .

Returning to the previous screen

Touch a setting and change its value on the displayed Settings screen.

Or

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Operating the Instrument

Switching the measured value display

Operation key Touch panel

Each time the key is pressed, the measured values shown on the screen will switch between voltage only and voltage and temperature.

1

2

•When measuring temperature, connect the temperature sensor to the instrument in advance.

(p. 27)

•Temperature measured values are not shown on the trend display or settings screens.

•The instrument will continue to measure temperature internally even if the temperature is not being displayed on the screen.

•The temperature display is updated together with the voltage display.

Changing the range

See “3.2 Setting the Measurement Range” (p. 35).

Operation keys Touch panel

Causes the optimal range to be set automatically.

(Auto-range operation)

1

2

Switches the range.

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Changing the measurement speed

See “3.3 Setting the Measurement Speed” (p. 36).

Operation key Touch panel

Switches the measurement speed.

1

2

Operating the Instrument

1

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Operating the Instrument

Starting measurement

By default, the instrument is in the RUN state. In this state, measurement will continue automatically.

Continuous measurement (default setting: RUN state)

See “Continuous measurement”(p. 37).

RUN state

Measurement will continue automatically, and measurement data will be saved in the instrument’s internal memory.

STOP state

Measurement will stop, and the last measured value will be saved.

Making measurements at the desired timing

See “Trigger measurement (measurement with user-specified timing)”(p. 38).

Starting measurement

Measurement can be started by either of the following methods:

•While in the STOP state,

•While the trigger source is set to EXTERNAL , send the TRIG signal to the instrument from an external device.

After the set number of measurements (default setting: 1) have been performed, measurement will stop automatically.

Measurement data will be saved in the instrument’s internal memory.

Up to 5000 measured values can be saved in the instrument’s internal memory. Saved measured values can be displayed in graph form to illustrate the trend in voltage readings

(trend display) or output to a USB flash drive.

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How to Use This Manual

1.6 How to Use This Manual

This manual describes how to display Settings screens as included in the broken border below.

The indicated keys should be touched, starting on the Measurement screen.

1

Example: (Measurement screen) > MENU > MATH > COMP

1 2

3

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2 Preparing for Measurement

2

Preparing for Measurement

2.1 Preparation Process

Before starting, read “Operating Precautions” (p. 7) carefully.

For more information about rack mounting, see “Appx. 7 Rack Mounting” (p. Appx.14).

(1) Position the instrument as desired. (p. 7) .

(2) Perform the pre-measurement inspection. (p. 24) .

(3) Connect the power cord. (p. 25) .

2

Power cord To outlet

(4) Connect the measurement cables to the measurement terminals. (p. 26) .

(5) Connect the temperature sensor to the TEMP.SENSOR connector.

(When performing temperature measurement or using the temperature compensation function) (p. 27)

(6) Configure and connect the external interface (as necessary).

• Using the USB interface. (p. 98)

• Using the RS-232C interface. (p. 100)

• Using the GP-IB interface. (p. 102)

• Using the LAN interface. (p. 104)

• Using a USB flash drive (p. 115)

• Using the EXT I/O connector (p. 125)

(7) Turn on the instrument. (p. 28) .

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Performing the Pre-measurement Inspection

2.2 Performing the Pre-measurement Inspection

Before using the instrument, inspect the instrument to ensure that nothing has broken during storage or shipment and to verify proper operation. If you find any damage, contact your authorized

Hioki distributor or reseller.

1

Inspecting peripheral equipment

Is there any damage to the power cord’s insulation, or is there any metal exposed on the cord?

Yes

No

If you find any damage, do not use the instrument as the damage may cause an electric shock or short-circuit. Contact your authorized

Hioki distributor or reseller.

Is there any damage to the insulation on the measurement cables, or is there any metal exposed on the cables?

No

Yes

If you find any damage, it may cause a shortcircuit or electric shock. Replace the damaged cables.

2

Inspecting the instrument

Is there any damage to the instrument?

Yes

If you find any damage, have the instrument repaired.

No

When you turn on the instrument

Does the power button turn green or red?

No

There may be a break in the power cord or damage to the instrument’s internal components.

Have the instrument repaired.

Yes

Is the Measurement screen displayed after the self-test completes (after the model number is displayed)?

Yes

An error is indicated.

The instrument’s internal components may be damaged. Have the instrument repaired.

See “14.1 Q&A (Frequently Asked Questions)”

(p. 168) and “14.3 Error Displays” (p. 176).

This completes the inspection.

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Connecting the Power Cord

2.3 Connecting the Power Cord

Before using the instrument, read “Before connecting a power cord” (p. 8) carefully.

Connect the power cord to the instrument and a power outlet.

You will need: The power cord (instrument accessory)

2

2

3

1

Power cord

Rear

4

To outlet

1 Turn off the main power switch.

2

Verify that the power supply voltage conforms to the instrument’s specifications.

3 Connect the power cord to the power inlet on the instrument.

4 Connect the cord to the power outlet.

If the power supply is interrupted while the main power switch is in the “ON” position (for example, due to a circuit breaker tripping), the instrument will turn on automatically once power is restored.

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Connecting the Measurement Cables (to the Instrument)

2.4 Connecting the Measurement Cables (to the

Instrument)

Before connecting the measurement cables, read “Before connecting a measurement cable”

(p. 9) carefully.

Connect the optional Hioki measurement cables to the instrument’s measurement terminals.

Use only Hioki measurement cables. See “Options (Sold Separately)” (p. 3) and “3.1

Connecting the Measurement Cables (Measurement Target)” (p. 31).

Protective cap

Each test lead plugs is covered by a protective cap.

Remove this cap before use.

Connect as follows:

Plug Terminal

Red HIGH

Black LOW

Red

Voltage measurement terminals

Black

Front

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Connecting the Temperature Sensor

2.5 Connecting the Temperature Sensor

Before connecting the temperature sensor, read “Before connecting a temperature sensor” (p. 9) carefully.

If you wish to measure temperature or use the temperature compensation function, connect the temperature sensor to the instrument’s TEMP.SENSOR connector.

You will need: Z2001 Temperature Sensor (optional)

(1) Connect the temperature sensor.

TEMP.SENSOR connector

1

2

Rear

Z2001 Temperature Sensor

3

Measurement target

1 Turn off the main power switch.

2 Connect the temperature sensor to the TEMP.SENSOR connector.

3 Position the end of the temperature sensor close to the measurement target.

4 Press the [V/°C] key to display the temperature.

(2) Verify the measured value.

After turning on the power, check whether the temperature measured value is correct.

2

For more information: “Switching the measured value display” (p. 18), “Measured temperature is not displayed correctly.” (p. 171)

The temperature display is updated together with the voltage display.

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Turning the Instrument On and Off

2.6 Turning the Instrument On and Off

Before turning the instrument on, read “Before turning the power ON” (p. 9) carefully.

Turn on the main power switch on the rear of the instrument. Once this switch has been turned on, the instrument can be turned on and off using the POWER button on the front panel.

The ability to use the POWER button on the front panel is convenient when embedding the instrument in an automated system or production line. If the instrument is in the SLEEP state when the main power switch is turned off, it will turn on in the SLEEP state when the main power switch is turned back on.

Main power switch

Rear

Turning on the main power switch

Set the main power switch to “ON (I).”

Front

POWER button

The POWER button will turn red or green.

Turning off the main power switch

Set the main power switch to

“OFF ( ).”

The POWER button will turn off.

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Placing the instrument in the SLEEP state

Press and hold the POWER button for about 2 seconds while the main power switch is in the “ON” position.

The POWER button will turn red.

About 2 seconds

Startup settings can be selected.

See “7.7 Selecting Startup Load Settings and a Panel” (p. 91) www.

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What is the SLEEP state?

When the instrument is off, it is in the SLEEP state. (Only the circuit used to turn on the

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Turning the Instrument On and Off

Canceling the SLEEP state

Press the POWER button while the instrument is in the SLEEP state.

The POWER button will turn green.

Lighting-up in red

To make measurements at the accuracy described in the instrument’s specifications, allow the instrument to warm up for at least 60 minutes after turning on the main power switch or canceling the SLEEP state.

When the main power switch is turned on or the SLEEP state is canceled, the self-test (a series of self-diagnostics performed by the instrument) will start automatically.

Self-test

The following information is displayed on the screen during the self-test:

•Manufacturer name and model number

•Software version

•Communications interface settings

•Detected power supply frequency

•EXT I/O (NPN/PNP) setting

2

No error found Error found

Measurement screen Error indicate d (p. 176)

• The following options are available for the measurement conditions that are loaded after the self-test completes: “Use settings in effect when instrument was turned off,” “Use factory default settings,” and “Load specified panel.” (For more information about the default settings, see “7.7

Selecting Startup Load Settings and a Panel” (p. 91).)

• The instrument’s power supply frequency setting is automatically set to the power supply’s frequency.

(This setting can also be changed manually: See “7.6 Setting the Power Supply Frequency”

(p. 90).)

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Setting the Time and Date

1

2.7 Setting the Time and Date

Before making measurements, set the instrument’s time and date.

(Measurement screen) MENU > SYSTEM

2

1

2

Example: Setting the month

(Default setting: 12:00 am on January 1,

2015)

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3 Measurement

3

Measurement

3.1 Connecting the Measurement Cables

(Measurement Target)

Before connecting the measurement cables to the measurement target, read “Before connecting a measurement cable” (p. 9) and “Before starting a measurement” (p. 10) carefully.

Use Hioki’s optional test leads, contact pins, alligator clips, or other connectors as appropriate depending on the measurement target.

For more information: “Options (Sold Separately)” (p. 3)

Using the L9207-10 Test Lead

(1) About the L9207-10

3

Black

Red

2

4 5 1

The test lead plugs are fitted with protective caps. Remove the caps before use.

Protective cap

1 Metal pins Connect the metal pins to the measurement target.

With cap: 4 mm or less

Without cap: 19 mm or less

Thickness: Approx. 2 mm

2 Caps Fit the caps to the metal pins to prevent short-circuits. The test leads can also be used with the caps removed.

3 Barriers The barriers indicate the safe distance from the metal pins.

During measurement, do not touch the area in front of the barriers.

4 Plugs

5 Cables

Connect the plugs to the instrument’s measurement terminals.

The cables have a double-insulated design.

(Length: Approx. 900 mm; thickness: approx. 3.6 mm)

If the white portion of the inside of the cable is exposed, replace the test leads with a new L9207-10 set.

3

Remove the caps when using the test leads with the L4933 Contact Pin Set or the L4934 Small

Alligator Clip Set.

Removing the caps Fitting the caps

Gripping the base of the cap gently, pull to remove.

Store caps after removal so as not to lose them.

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Pass the test lead metal pin through the hole in the cap and insert firmly all the way.

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Connecting the Measurement Cables (Measurement Target)

(2) Example connections

Black

L9207-10 Test Lead

Connect, taking care to align the measurement cable colors with the measurement target’s polarity.

Red

L9207-10 Test Lead + L4933 Contact Pin Set

L4933 pin diameter: φ 1.0 mm

+

L9207-10 Test Lead + L9434 Small Alligator Clip Set

−

Red

Black

Connect, taking care to align the measurement cable colors with the measurement target’s polarity.

L4934 maximum clip width: 2.0 mm

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Connecting the Measurement Cables (Measurement Target)

Using the L4930 Connection Cable Set

Remove the protective caps before use.

Protective cap

Example connections

L4930 Connection Cable Set + L4931 Extension Cable Set

L4930

L4931 connector

L4931

Connect using the L4931’s rod-shaped connector.

Black

+

L4930 Connection Cable Set + L4935 Alligator Clip Set

Red Connect, taking care to align the measurement cable colors with the measurement target’s polarity.

Clip at the middle of the clip.

−

L4930 Connection Cable Set + 9243 Grabber Clip

1 Grip the 9243 as shown to the left.

3

2 Open the tip of the clip by depressing as you would the plunger of a syringe.

3 Grip the measurement target with the clip.

The clip will close when you release your fingers.

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Connecting the Measurement Cables (Measurement Target)

L4930 Connection Cable Set + L4936 Bus Bar Clip Set

1 Grip the L4936 as shown to the left.

1

Red

−

Black

+

2 3

2 Open the clip by depressing as you would the plunger of a syringe.

3 Connect, taking care to align the measurement cable colors with the measurement target’s polarity.

The clip will close when you release your fingers.

To apply the clip to a thick target:

1 Rotate the clip’s lower jaw.

2 Lower the lower jaw.

3 Rotate the clip’s lower jaw in the opposite direction.

In this configuration, the clip can be applied to a measurement target of 30 mm or less.

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Setting the Measurement Range

3.2 Setting the Measurement Range

By default, the range is set to AUTO (auto-range operation). In this setting, the range is automatically switched to an appropriate setting. You can also fix the range as desired (manual range operation).

Setting with the touch panel Setting with the operation keys

Press the [  ] keys.

Each time you press one of the keys, the range, decimal point position, and unit will change

(indicated by the boxes below).

3

1

3

2

Press the [AUTO] key.

1

3

2

Auto-range operation may not stabilize for some measurement targets. In this case, set the range manually.

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Setting the Measurement Speed

3.3 Setting the Measurement Speed

The slower the measurement speed, the higher the measurement accuracy. In addition to setting the measurement speed to FAST , MEDIUM , or SLOW , you can set the integration time as desired.

For more information: “Setting the integration time” (p. 67)

The FAST , MEDIUM , and SLOW settings differ in terms of integration time as follows:

Setting

FAST

Integration time

1 PLC*

Measurement speed

Fast

Measurement precision

(Influence of external environment)

Low

(Prone to influence of external environment)

MEDIUM 10 PLC

SLOW 100 PLC

Slow High

(Resistant to influence of external environment)

MANUAL (p. 67) As set by user As set by user As set by user

* PLC stands for power line cycle. The interval of 1 PLC is equivalent to one cycle of the supplied power source. If using the instrument in an area with 50 Hz power, 1 PLC = 1/50 = 20 ms. If using the instrument in an area with 60 Hz power, 1 PLC = 1/60 = 16.7 ms.

Setting with the touch panel Setting with the operation keys

Press the [SPEED] key.

The measurement speed will change each time the key is pressed (indicated by the box below).

1

3

You can set the desired integration time using the touch panel.

2

See “Setting the integration time” (p. 67)

•If measurement is prone to the influence of the external environment: See “Appx. 4 Noise

Countermeasures” (p. Appx.8) for more information.

•The instrument performs self-calibration between measurements. For more information about measurement times, see “11.6 Timing Chart” (p. 139).

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Starting Measurement

3.4 Starting Measurement

The instrument supports two types of measurement: continuous measurement and trigger measurement. By default, the instrument is configured to perform continuous measurement (in the

RUN state).

Continuous measurement

Once the measurement cables have been connected to the measurement target, the instrument will display measured values. Measurement data is saved in the instrument’s internal memory (p. 42).

3

The display indicates something other than a measured value.

If you wish to check the temperature

If you wish to convert to a measured value other than voltage

If the measured value is not updated even when you connect the instrument to another measurement target

Stopping continuous measurement

Press the [RUN/STOP] key while the instrument is in the RUN state.

See “3.5 Measurement Error Displays (Displays Other Than

Measured Values)” (p. 46)

See “Switching the measured value display” (p. 18)

See “6.5 Correcting Measured Values” (p. 77)

Continuous measurement has stopped (the instrument is in the STOP state). Either start continuous measurement (by placing the instrument in the RUN state) or perform trigger measurement to update the measured value.

Starting continuous measurement

Press the [RUN/STOP] key while the instrument is in the STOP state.

The instrument will switch to the STOP state.

The measured value will not be updated

(instead, it will be fixed). If you wish to update the measured value, either perform trigger measurement (p. 38) by pressing the [TRIG] key or resume continuous measurement.

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The instrument will switch to the RUN state.

The measured value will be continuously updated. Display values can be automatically held in order to make it easier to read measured values while operating in the RUN state.

For more information: “6.2 Auto-hold Function”

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Starting Measurement

Trigger measurement (measurement with user-specified timing)

Definition of trigger

Operation to start measurement is termed “inputting a trigger.” Measurement can be started by means of the following operations:

Screen Instrument state

STOP

Trigger input method

Pressing the [TRIG] key

The instrument will not accept the

EXT I/O TRIG signal or the *TRG command.

Trigger source:

EXTERNAL

•Pressing the [TRIG] key

•Inputting the TRIG signal from the

EXT I/O

•Sending the

*TRG

command

RUN The trigger will be applied automatically, and measurement will continue.

Inputting the trigger while the instrument is not in the RUN state will cause measurement to be performed the set number of times (the default setting is 1), after which the instrument will enter the standby state and wait for the next trigger.

Measurement data is stored in the instrument’s internal memory (p. 42).

103

The RUN state can be canceled by sending a communications command

(

:INITIATE:CONTINUOUS OFF

) to the instrument via the RS-232C, USB, GP-IB, or LAN interface. For more information about commands, see the Communication Command Instruction

Manual on the included application disc.

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Starting Measurement

Trigger function settings

Trigger source

You can set whether to enable trigger input from an external device. Setting the trigger source to

EXTERNAL enables use of the EXT I/O TRIG terminal as well as the *TRG command. The default setting is INTERNAL ( RUN state).

Delay

You can set the delay time from trigger input until the start of measurement from 0 ms to 9999 ms in increments of 1 ms. The default setting is PRESET (0 ms).

Adjust the delay time for measurement targets that require some time to respond. Set a long delay time at first and then gradually shorten the time while viewing measured values.

Measurement count

You can set how many measurements to perform for each trigger event from 1 to 5000. The default setting is 1. This setting is disabled while the instrument is in the RUN state.

3

1

(Measurement screen) MENU > TRIG > SOURCE

2

2

1

Setting the trigger source

INTERNAL

EXTERNAL

Sets the instrument to the RUN state (default setting).

Enables trigger input from an external device.

1

3

2

˄

˅

Setting the delay

PRESET No delay time (0 ms)

(default setting)

MANUAL Sets the delay time.

Increases the setting by 1.

Decreases the setting by 1.

(Valid setting range: 0 ms to 9999 ms)

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Starting Measurement

3

1

2

Setting the measurement count

˄ Increases the setting by 1.

˅ Decreases the setting by 1.

(Default setting: 1, valid setting range: 1 to 5000 measurements)

•One contact check and delay will be inserted after trigger input. Measurement will then continue without any delay until the next trigger input.

•Self-calibration will not be performed until the set number of measurements is performed. In the event that the value obtained by multiplying the integration time by the measurement count is greater than 1 minute, manage the ambient temperature such that it does not vary more than

±1°C. (For an example, see “Appx. 5 Self-calibration” (p. Appx.11))

For more information: “Setting the integration time” (p. 67), “6.3 Contact Check” (p. 71)

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Starting Measurement

Trigger measurement operation (in the STOP state or when the trigger source is set to EXTERNAL ; with contact check set to ON )

When the contact check function is set to OFF , no contact check will be performed after trigger input.

Example 1: Measurement count of 1

TRIG ON OFF

Wait for trigger

Contact check

Delay Measurement Trigger standby

3

EOM ON OFF ON

Example 2: Measurement count of n

TRIG ON OFF

Wait for trigger

Contact check

Delay

Measurement time

1 st measurement

2 nd measurement n th measurement

Trigger standby

Measurement count = n

EOM ON OFF ON

Measurement time (reference value)

Integration time setting

0.02PLC

0.2PLC

1PLC (FAST)

10PLC (MEDIUM)

100PLC (SLOW) ms

Measurement time [ms]

0.4 × n

(50 Hz) 4 × n, (60 Hz) 3.2 × n

(50 Hz) 20 × n, (60 Hz) 16.7 × n

(50 Hz) 200 × n, (60 Hz) 167 × n

(50 Hz) 3900 × n, (60 Hz) 3400 × n

Integration time × n

Measured values up to the (n-1) th

Only the n th

measurement are not used in comparator or BIN judgment.

measured value is used in judgment output.

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Starting Measurement

Storage of measurement data in the instrument’s internal memory

Measured values are always stored in the instrument’s internal memory, which is structured as a ring buffer. Once all 5000 spaces in the internal memory are occupied by measured values, the oldest measured value will be deleted and replaced with the most recent measured value starting with the next measurement.

DATA

1

DATA

2

Empty

DATA

4999

DATA

1

DATA

5000

DATA

4999

DATA

2

DATA

5001

DATA

5000

DATA

4999

DATA

2

The contents of the instrument’s internal memory can be checked using the trend display (p. 43, p. 45). To check values in a more detailed manner, output the data to a computer and use a spreadsheet or other software to open it.

IMPORTANT

The instrument’s internal memory is erased at the following times:

• When the instrument is reset

• When a panel is loaded

• When CLR is touched on the Trend Display screen

• When the memory is cleared using a remote command

• When the

:INITIATE:IMMEDIATE

command or the

:READ?

query is used

• When the instrument is turned off

To output data from the instrument’s internal memory

• Measurement data stored in the instrument’s internal memory can be output to a USB flash drive. See “10 Using a USB Flash Drive” (p. 115) , “Outputting all measurement data”

(p. 119)

• Communications commands can be used to download measurement data to a programmable controller or computer. See “8 Preparing to Use USB, RS-232C, GP-IB, and LAN Control”

(p. 97)

• Use the data output function to output the most recent measured value. See “9 Outputting

Data” (p. 111)

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Starting Measurement

Displaying trends, bar graphs, statistics, and judgment results

In addition to measured values, it is possible to display trends (voltage trends), bar graphs, statistics, and judgment results (for comparator measurement and BIN measurement) (on the subdisplay).

1

2

NUMERIC Measured values only

(When measured value judgment is enabled, measured values and judgment results will be displayed. See the following page for more information.)

Bar graph display BAR GRAPH

TREND

STATISTICS

Trend display (p. 45)

Statistics display (p. 84)

INFORMATION List of current settings

3

•The trend display consists of the contents of the instrument’s internal memory (up to 5000 values). Once the internal memory becomes full, data will be erased starting with the oldest values and replaced with the most recent values (the memory behaves like a ring buffer).

See “Storage of measurement data in the instrument’s internal memory” (p. 42)

•You can check current settings by touching

INFORMATION .

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Starting Measurement

When comparator measurement or BIN measurement is set to ON

When comparator measurement (p. 53) or BIN measurement (p. 57) is set to ON , the judgment results and sub-display are displayed automatically.

You can display the Settings screen by touching SET on the sub-display.

Example: Displaying the Settings screen for comparator measurement

The screen display varies with the combination of comparator measurement and BIN measurement.

Comparator OFF, BIN OFF Comparator ON, BIN OFF Comparator OFF, BIN ON

BIN measurement judgment results are not shown.

BIN measurement judgment results are not shown.

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Starting Measurement

Checking the voltage trend

The trend display (p. 43) allows you to check up to 5000 data values stored in the instrument’s internal memory as a graph.

Enlarging the waveform, adjusting the display position, and changing the time axis

Touch the magnifying glass icon to change the display.

3

+

−

↑

CLR

AUTO ONCE

↓

←→

→←

Clear the measured data.

Sets the voltage axis to the optimal value based on the currently displayed waveform (performed once when the key is touched).

Enlarges the waveform.

Shrinks the waveform.

Moves the display position up.

Moves the display position down.

Expands the time axis interval.

Shrinks the time axis interval.

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Measurement Error Displays (Displays Other Than Measured Values)

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3.5 Measurement Error Displays (Displays Other

Than Measured Values)

The instrument will display a message on the screen if it is unable to complete measurement normally. For more information: “14.3 Error Displays” (p. 176), “14.1 Q&A (Frequently Asked

Questions)” (p. 168)

Measurement error

Display

+OvrRng

−OvrRng

NoCntct

−−−−−−−

−−.−°C

Description

Solution and additional information

•This message is displayed in the following circumstances:

1. When the measurement range has been exceeded

Example: When 13 V is measured

while using the 10 V range

2. When A/D converter input during measurement exceeds the range

Example: When a 20 Vpk AC signal is input while using the 10

V range

•The comparator judgment when

+OvrRng or −OvrRng is displayed will be Hi or Lo (p. 54).

•The instrument will indicate OvrRng if the temperature exceeds the measurement range during measurement.

•When the contact check (p. 71) is set to ON , the instrument automatically checks the connection between the

HIGH and LOW terminals. In the event of poor contact, this error will be displayed, and the ERR signal will be output from the EXT I/O terminal.

•If the measurement target is conductive paint, conductive rubber, or a similar material, the high resistance value between the HIGH and LOW terminals will cause this error to be continuously displayed, preventing measurement.

•Comparator and BIN judgments cannot be generated while this error is being displayed.

•This message is displayed when no measurements have been made since changing the measurement conditions.

•Comparator and BIN judgments cannot be generated while this error is being displayed.

Change the measurement range.

See “3.2 Setting the Measurement

Range” (p. 35).

•Check the contact between the measurement target and the metal pins.

•Replace the measurement cable.

•Change the contact check thresholds.

•If you wish to disable display of contact errors, set the contact check to OFF .

See “6.3 Contact Check” (p. 71).

Temperature measurement cannot be performed because the temperature sensor is not connected.

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It is not necessary to connect the temperature sensor if you are not measuring temperature or using the temperature compensation

(TC) function. If you do not wish to display the temperature, change to the voltage display.

See “Switching the measured value display” (p. 18).

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Measurement Error Displays (Displays Other Than Measured Values)

Measurement error detection order

Measurement errors are detected in the order shown in the diagram below. The first error that is detected will be displayed on the screen and output as a signal from the EXT I/O.

Order Screen display EXT I/O connector

1

2

3

Measurement error detection

Temperature compensation error

No

Display: Higher than upper limit

No

Display: Lower than lower limit

No

Yes

Yes

Yes

Err.TC

+OvrRng

−OvrRng

ERR signal output

HI signal output

(When comparator is ON)

LO signal output

(When comparator is ON)

4 NoCntct ERR signal output

5

Contact error

No

No measurement data

Yes

Yes

−−−−−−− No output

3

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Changing the Number of Display Digits

3.6 Changing the Number of Display Digits

You can change the number of digits that are displayed.

(Measurement screen) MENU > MEAS > DIGITS

7.5

6.5

5.5

4.5

3.5

±12,000,000 dgt. (default setting)

±1,200,0000 dgt.

±120,000 dgt.

±12,000 dgt.

±1,200 dgt.

•When the number of display digits is decreased, digits that are not displayed are rounded off.

•Printed results are linked to the displayed digits.

•When the number of display digits is changed, only the displayed digits are used to generate comparator function and BIN function judgments. Digits that are not displayed are not used in making judgments.

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Displaying Labels (Assigning Names to Measured Values)

3.7 Displaying Labels (Assigning Names to

Measured Values)

You can assign user-specified strings to measured values by enabling the label display. This function provides a convenient way to indicate what each instrument is measuring when using multiple instruments.

(Measurement screen) MENU > MEAS > LABEL

1 2

3

3 Example label display

< >

[A]

[a]

[9]

[!]

Enter text and touch ENT .

CLR

BS

CNCL

Deletes all entered text.

Deletes the previous character.

Cancels the setting and returns to the previous screen.

Moves the cursor.

Switches to uppercase characters.

Switches to lowercase characters.

Switches to numerals.

Switches to symbols.

Up to eight characters may be entered.

Labels cannot be displayed when the auto-hold function (p. 70) is enabled.

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4 Judging Measured Values

4

Judging Measured Values

This chapter describes how to set judgment standards and perform comparator measurement

(p. 53) or BIN measurement (p. 57). This functionality automatically compares measured values to the reference values and generates judgment results, making it convenient for tasks such as sorting (classifying) measurement targets or conducting shipping inspections.

Comparator measurement and BIN measurement provide the following capabilities:

Displaying judgment results on the screen

“Displaying trends, bar graphs, statistics, and judgment results” (p. 43)

Sounding the buzzer

(comparator measurement only)

“To check judgments aurally” (p. 55)

(By default, the buzzer is disabled.)

Outputting judgment results

“9 Outputting Data” (p. 111)

4

Enabling the absolute value judgment function

When measuring batteries, the sign of the voltage reading depends on the orientation of the battery’s electrodes. Consequently, it is necessary to repeat measurement when the battery’s orientation is changed.

The DM7275/DM7276 provides an absolute value judgment function that, when enabled, makes it possible to perform comparator measurement or BIN measurement while ignoring the sign of measured values.

See “4.1 To Obtain Accurate Judgments Even When the Polarity of the Measurement Target (Battery, etc.) Is Reversed” (p. 52)

Comparator measurement and BIN measurement use the same judgment method in which measured values are compared to previously set upper limit and lower limit values. It is also possible to set only an upper limit value or a lower limit value.

Upper limit and lower limit values

Upper limit

Lower limit

HI

IN

LO

When (lower limit value ≤ measured value ≤ upper limit value), the instrument will generate an IN judgment .

Upper limit value only

Upper limit

HI

IN

When (measured value ≤ upper limit value), the instrument will generate an IN judgment, including in the event of an over-range ( -OvrRng ).

Lower limit value only

Lower limit

IN

LO

When (measured value ≥ lower limit value), the instrument will generate an IN judgment, including in the event of an over-range ( +OvrRng ).

•Comparator measurement and BIN measurement cannot be performed simultaneously. When one is set to ON , the other will be automatically set to OFF .

•The lower limit value cannot be greater than the upper limit value. The instrument will display

ERR:001 if you attempt to set such a value.

•When both the upper limit value and lower limit value are set to OFF , IN judgment will be performed.

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To Obtain Accurate Judgments Even When the Polarity of the Measurement Target (Battery, etc.) Is Reversed

4.1 To Obtain Accurate Judgments Even When the

Polarity of the Measurement Target (Battery, etc.) Is Reversed

By setting the absolute value judgment function to ON , voltage can be judged as a positive value even when it is negative.

(Measurement screen) MENU > MATH > ABS MODE

(Default setting: OFF )

When the absolute value judgment function is enabled (example when both the upper limit and lower limit values are positive)

Upper limit and lower limit values Upper limit value only Lower limit value only

Upper limit HI

IN

Lower limit

0

- Lower limit

LO

LO

- Upper limit

IN

HI

When (lower limit value ≤ |measured value| ≤ upper limit value), the instrument will generate an IN judgment.

Upper limit

0

- Upper limit

IN

HI

HI

IN

When (|measured value| ≤ upper limit value), the instrument will generate an IN judgment.

Lower limit

0

- Lower limit

IN

LO

LO

IN

When (|measured value| ≥ lower limit value), the instrument will generate an IN judgment, including in the event of an over-range ( +OvrRng / -

OvrRng ) event.

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Comparator Measurement (Using a Single Judgment Standard)

1

4.2 Comparator Measurement (Using a Single

Judgment Standard)

In comparator measurement, a pair of judgment standards (in the form of upper limit and lower limit values) is set. The instrument automatically compares measured values with the reference values and generates judgment results correspondingly. Judgment results of HI (larger than the upper limit value), IN (within the range defined by the upper limit and lower limit values), and LO (less than the lower limit value) can be displayed on the screen and output as a signal from the EXT I/O connector. This function can be used with both auto-range operation and fixed-range operation.

(Measurement screen) MENU > MATH > COMP

2

4

3

Enable the comparator function.

(Default setting: OFF )

When this function is set to OFF , upper limit and lower limit values are disabled even if they have been previously set.

4

Enable upper limit and lower limit values.

(Default setting: ON )

When the upper limit and lower limit values are set to OFF , they are disabled even if they have been previously set.

1

Enter a lower limit value using the same method as for the upper limit value.

(Default setting: 0 V; valid setting range:

-1000 V to 1000 V)

2

Enter an upper limit value and touch ENTER .

CLR

BS

Deletes the entire value.

Deletes the previous character.

CANCEL Cancels the setting and returns to the previous screen.

(Default setting: 0 V; valid setting range:

-1000 V to 1000 V)

If the instrument is turned off before touching

ENTER , the value being set will be lost, and

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Comparator Measurement (Using a Single Judgment Standard)

Judgment result

Set upper limit and lower limit values

Statistics display

(p. 84)

The judgment result and statistics subdisplay are shown on the Measurement screen.

P1 , P2 Toggles the statistics display.

CLR Deletes the statistical calculation results.

Setting the comparator function to ON automatically sets the BIN function to OFF.

The following judgments may be shown when the instrument is not able to perform measurement normally:

Measured value display

+OvrRng

−OvrRng

NoCntct or −−−−−−−

Judgment

HI (if only a lower limit value was set, IN )

If the absolute value judgment function is disabled: LO (if only an upper limit value was set, IN )

If the absolute value judgment function is enabled: HI (if only a lower limit value was set, IN )

−− (No judgment)

See “3.5 Measurement Error Displays (Displays Other Than Measured Values)” (p. 46) .

The Settings screen can be displayed from the Measurement screen’s sub-display.

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Comparator Measurement (Using a Single Judgment Standard)

To check judgments aurally

(Measurement screen) MENU > MATH > COMP

1 2

4

BUZZER HI Tone for HI judgments

BUZZER IN Tone for IN judgments

BUZZER LO Tone for LO judgments

Set the tone for each judgment and the number of tones to be sounded.

4

3

5

Select the type of judgment tone to use.

(Default setting: OFF )

Select the number of times the selected tone should be sounded.

CONT : Continuous tone

(Default setting: 2)

When the contact check is set to ON , the buzzer will stop when the measurement cable is in the open state.

To change the buzzer volume: See “7.2 Buzzer Settings” (p. 88).

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Comparator Measurement (Using a Single Judgment Standard)

To perform judgment after measured values stabilize

1

Since measured values may exhibit instability immediately after the instrument is connected to the measurement target when performing measurement manually, readings may temporarily exceed the judgment range.

When judgment delay is enabled, the judgment will be output after the same judgment is obtained the set number of times.

(Measurement screen) MENU > MATH > COMP

2

Enable the judgment delay.

(Default setting: OFF )

3

Select the desired number of judgment delays.

(Default setting: 2)

To output judgment results to an external device or to print judgment results

Set the comparator function to ON , configure external output (p. 111) or printing (p. 143), and prepare the associated equipment.

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BIN Measurement (Using Multiple Judgment Standards)

4.3 BIN Measurement (Using Multiple Judgment

Standards)

In BIN measurement, multiple sets (up to 10, BIN0 to BIN9) of judgment standards (consisting of upper limit and lower limit values) are set. After each measurement, the instrument compares the measured value to multiple judgment standards and generates judgment results accordingly. This function provides a convenient way to group measurement targets into ranks.

The BIN number corresponding to the applicable judgment standard is displayed on the screen, and a signal can be output from the EXT I/O connector.

Measured values that do not fall under any BIN are indicated as OB (“out of bins”). This function can be used with both auto-range operation and fixed-range operation.

BIN0 BIN1 BIN2 BIN3 BIN4 BIN5 BIN6 BIN7 BIN8 BIN9 OB

Upper limit value

OB

IN

IN

IN

Lower limit value

IN

OB

4

BIN0 BIN1 BIN2 BIN3 BIN4 BIN5 BIN6 BIN7 BIN8 BIN9 OB

OB

Upper limit value

IN IN IN IN IN IN IN IN IN IN

Lower limit value

OB

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BIN Measurement (Using Multiple Judgment Standards)

(Measurement screen) MENU > MATH > BIN

1 2

3

Enable the BIN function.

(Default setting: OFF )

When this function is set to OFF , upper limit and lower limit values are disabled even if they have been previously set.

4

Select a BIN number.

1

Enter a lower limit value using the same method as for the upper limit value.

(Default setting: 0 V; valid setting range:

-1000 V to 1000 V)

2

Enter an upper limit value and touch

ENTER .

CLR

BS

Deletes the entire value.

Deletes the previous character.

CANCEL Cancels the setting and returns to the previous screen.

(Default setting: 0 V; valid setting range:

-1000 V to 1000 V)

If the instrument is turned off before touching

ENTER , the value being set will be lost, and the setting will revert to its previous value.

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BIN Measurement (Using Multiple Judgment Standards)

5

1

2

Judgment result

Set BIN number

Green: Judgment complete

White: Judgment in progress

(BIN numbers set to OFF are not displayed.

The judgment result and sub-display are shown on the Measurement screen.

Setting the BIN function to ON automatically sets the comparator function to OFF.

Enable the BIN number setting.

When the BIN number is set to OFF , upper limit and lower limit values are disabled even if they have been previously set.

The following judgments may be shown when the instrument is not able to perform measurement normally:

BIN judgment

+OvrRng

Measured value display

−OvrRng

NoCntct or −−−−−−−

OB (out of range)

OB (out of range)

−− (No judgment)

See “3.5 Measurement Error Displays (Displays Other Than Measured Values)” (p. 46) .

The Settings screen can be displayed from the Measurement screen’s sub-display.

4

To check judgments aurally

Judgment tones do not sound during BIN measurement.

To output judgment results to an external device or to print judgment results

Set the BIN function to ON , configure external output (p. 111) or printing (p. 143), and prepare the

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5 Saving and Loading Measurement Conditions (Internal Memory)

5

Saving and Loading Measurement

Conditions (Internal Memory)

The current measurement conditions can be saved to the instrument’s internal memory (via the panel save function) and loaded from the instrument’s internal memory (via the panel load function) as follows:

• By means of touch panel operation

• By sending communications commands from an external device

• By sending signals from an external device

A maximum of 30 panels (with panel numbers 01 through 30) can be saved. Panel data is maintained even when the instrument is turned off.

Measurement conditions can also be saved on a USB flash drive. See “10 Outputting and

Loading Measurement Conditions (USB Flash Drive)” (p. 120).

Information that can be saved with the panel save function

Save time and date

Number of display digits

Measured value display

Integration time

Range selection

Smoothing

NULL

Comparator

Label display

Temperature compensation

BIN

Sub-display

Scaling

Absolute value judgment

Input resistance selection

Trigger settings

(measurement count and delay)

Contact check

Auto-hold

5

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Saving Measurement Conditions (Panel Save Function)

1

5.1 Saving Measurement Conditions (Panel Save

Function)

The panel save function saves the current measurement conditions in the instrument’s internal nonvolatile memory. You can select whether to save NULL values.

(Measurement screen) MENU > PANEL

2

3

Select a panel number.

4

(When saving to an unused panel number)

Select whether to save NULL values.

Checked Saves NULL values.

Not checked Does not save NULL values.

If you chose OK ⇒ Proceed to Step 5 .

(When saving to a panel number that has already been used)

Touch OK to overwrite the previously saved data with the current measurement conditions.

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Saving Measurement Conditions (Panel Save Function)

5

(When saving to an unused panel number)

Enter the desired text and touch ENT .

Up to 10 characters may be entered.

The current measurement conditions will be saved as panel data.

< >

[A]

[a]

[9]

[!]

CLR

BS

CNCL

Deletes all characters.

Deletes the previous character.

Cancels the setting and returns to the previous screen.

Moves the cursor.

Switches to uppercase characters.

Switches to lowercase characters.

Switches to numerals.

Switches to symbols.

5

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Loading Measurement Conditions (Panel Load Function)

1

5.2 Loading Measurement Conditions (Panel Load

Function)

The panel load function loads panel data that was previously saved in the instrument’s internal memory.

Panel data can be loaded as follows:

• By means of touch panel operation

• By sending communications commands from an external device

(See the Communication Command Instruction Manual on the included application disk.)

• By sending signals from an external device

See “11 External Control (EXT I/O)” (p. 125), “8 Preparing to Use USB, RS-232C, GP-IB, and LAN Control” (p. 97)

This section describes how to load panel data using the touch panel.

(Measurement screen) MENU > PANEL

2

3

Select the panel data to load.

Touch OK to replace the current settings with the settings in the loaded panel data.

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5.3 Changing the Panel Name

(Measurement screen) MENU > PANEL

2

3

Select the panel data whose name you wish to change.

< >

[A]

[a]

[9]

[!]

Enter the desired text and touch ENT .

Up to 10 characters may be entered.

CLR

BS

CNCL

Deletes all characters.

Deletes the previous character.

Cancels the setting and returns to the previous screen.

Moves the cursor.

Switches to uppercase characters.

Switches to lowercase characters.

Switches to numerals.

Switches to symbols.

Changing the Panel Name

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Deleting a Panel

5.4 Deleting a Panel

1

(Measurement screen) MENU > PANEL

2

3

Select the panel data you wish to delete.

Touch OK to delete the selected panel data.

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6 Useful Functionality

6

Useful Functionality

6.1 Obtaining Stable Measured Values

Setting the integration time

Readings for the measurement signal input to the instrument are averaged over the set time and displayed as measured values. The time over which the signal is averaged is known as the integration time and can be set as desired. In general, longer integration times yield more stable measured values.

Preset integration times have been assigned to the FAST , MEDIUM , and SLOW measurement speeds.

Unit Setting

Integration time

Measurement speed

Measurement precision

(Effect of external environment)

0.02 PLC 0.02 PLC*

0.2 PLC 0.2 PLC

Fast

Low

(More susceptible to effects)

PLC 1 PLC ( FAST ) 1 PLC

10 PLC ( MEDIUM ) 10 PLC

Slow High

(Less susceptible to effects)

100 PLC ( SLOW ) 100 PLC ms 1 ms to 9999 ms As set As set As set

6

* “PLC” stands for power line cycle, where 1 PLC is equivalent to the duration of one cycle of the power being supplied to the instrument. In areas with 50 Hz power, 1 PLC = 1/50 = 20 ms, while in areas with 60 Hz power, 1 PLC = 1/60 = 16.7 ms.

The unit in which the integration time is set can be switched between milliseconds and power line cycles.

This function is useful when the DC voltage you are measuring has superposed AC noise. You can improve the stability of measured values by setting the integration time to a whole multiple of the noise period.

Example: For a noise frequency of 40 Hz

Noise period = 1/40 = 25 ms

→ Set the integration time to 25 ms, 50 ms, 75 ms, etc.

Measurement voltage waveform

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Obtaining Stable Measured Values

1

1

2

2

3 (When PLC is selected)

Select the unit.

(When ms is selected)

Select the integration time.

(100 PLC, 10 PLC, 1 PLC, 0.2 PLC, 0.02 PLC)

Select the integration time.

˄

˅

Increases the value by 1.

Decreases the value by 1.

(Valid setting range: 1 ms to 9999 ms)

•If the instrument is susceptible to the effects of the external environment: See “Appx. 4 Noise

Countermeasures” (p. Appx.8).

•When the integration time is set to 0.02 PLC, an integration time of 0.4 ms will be used regardless of the power supply frequency.

•Even when a longer integration time is used, fluctuations on the order of several microvolts may be observed due to fluctuations in thermal electromotive force and the effects of burst noise.

See “Appx. 3 Causes of Error in Voltage Measurement” (p. Appx.5)

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Obtaining Stable Measured Values

Reducing measured value variability ( smoothing function)

This function averages multiple measured values to reduce measured value variability. It can only be enabled while the instrument is in the RUN state (p. 37).

To reduce variability in a state other than the RUN state, adjust the integration time.

The smoothing function averages the most recent measured value the set number of times and displays the result (using a moving average). When the smoothing function is enabled, the display refresh speed does not change, but the response time increases.

Example: Display values (D1 to D4: measured values) when the smoothing count is set to 3

Measurement count

Display value

First measurement

D1

Second measurement

(D1 + D2) / 2

Third measurement

Fourth measurement

(D1 + D2 + D3) / 3 (D2 + D3 + D4) / 3

1

(Measurement screen) MENU > MEAS > SMOOTHING

2

Enable the smoothing function.

(Default setting: OFF )

Set the smoothing count.

˄

˅

Increases the value by 1.

Decreases the value by 1.

(Valid setting range: 2 to 100; default setting: 4)

Important

The smoothing memory is automatically erased at the following times:

• When the smoothing, temperature compensation , scaling, NULL, or trigger source setting is changed

• When the instrument is reset

• When the panel load function is used

• When a measurement error occurs

• When the instrument is turned off

• When the range is changed

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Auto-hold Function

6.2 Auto-hold Function

The auto-hold function is useful when you wish to check the measured value. The buzzer will sound once the measured value has stabilized (when the fluctuations in the measured value fall within the auto-hold range), and the display will be automatically held. The auto-hold range is specified as a percentage of the measurement range. Increasing the auto-hold range causes values to be held more quickly, while decreasing it takes more time but causes values to be held in a more stable state.

1

(Measurement screen) MENU > MEAS > AUTO HOLD

2

1

Enable the auto-hold function.

(Default setting: OFF )

2

3

Set the auto-hold range.

CLR Reverts the setting to its default value.

CANCEL Cancels the setting and returns to the previous screen.

(Valid setting range: 0.001% to 1.000% of the range; default setting: 0.1%)

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The HOLD icon will be displayed on the

Measurement screen while the measured value is being held automatically.

The current measured value is displayed in real time.

•When the auto-hold function is enabled, the measurement conditions change as follows:

RUN state, MEDIUM integration time, 10 M input resistance, contact check ON .

•Measured values are not automatically held when they are 0.1% or less of the range.

When measuring small values, select an appropriate range.

Ω

.com

The auto-hold state will be canceled in the following instances:

• If the measurement cables are disconnected from the measurement target and then reconnected to the measurement target [email protected]

Contact Check

6.3 Contact Check

Enabling the contact check function lets you check the connection state between the HIGH and

LOW terminals.

If the measurement cables become disconnected from the measurement target, the instrument will detect a contact error and display NoCntct . If the instrument displays NoCntct , check the contact state at the ends of the measurement cables and check for breaks in the cables.

Contact state Good contact

Poor contact

(indicated by broken red circle)

Measuring a battery’s output voltage

Instrument

Instrument

Measuring the potential across a battery’s enclosure

Aluminum foil

Outer film

Instrument display Measured value display

Instrument

Aluminum foil

Outer film

NoCntct display

Instrument

6

The contact check function can be used with the 10 V range and lower ranges.

Contact check can be enabled 100 mV range, 1000 mV range, 10 V range

Contact check cannot be enabled 100 V range, 1000 V range

For more information: see "Contact check" in “Appx. 2 Measuring the Enclosure Potential of

Laminated Lithium-ion Batteries” (p. Appx.2)

•Even if the contact check function is enabled, the instrument will display OvrRng without registering a contact error if its internal amplifier is in the over-range state, even if the measurement cable is unconnected.

See “Measurement error detection order” (p. 47) and “Appx. 1 Block Diagram” (p. Appx.1).

•For more information about contact check and delay timing, see “Trigger function settings”

(p. 39).

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Contact Check

Threshold

• The instrument’s contact check threshold is specified as a capacitance value. It can be changed within the range of 0.5 nF to 50 nF (default setting: 1 nF).

• The following table provides approximate resistance value threshold equivalents for a number of contact check thresholds:

Threshold value setting

0.5 nF

5 nF

50 nF

Resistance value threshold

15 k Ω

1.5 k Ω

150 Ω

• If the capacitance between the HIGH and LOW terminals is less than the threshold value, the instrument will not display a measured value or perform judgment (contact error). Set a low threshold for small batteries and a high threshold for large batteries.

• The capacitance between the HIGH and LOW terminals can be monitored and used as a guideline when determining the threshold.

If the capacitance monitor value is the same as the contact check threshold, the instrument may either detect a contact error or display the measured value .

Contact check integration time

The contact check integration time can be changed within the range of 1 ms to 100 ms (default setting: 10 ms). Use a low value when you wish to increase the measurement speed. Use a high value in environments with a large amount of noise.

•It is recommended to enable the contact check function when switching among multiple measurement targets at high speed as part of the measurement process and when measuring the potential across a battery’s enclosure.

•Set an appropriate trigger delay (p. 39) when measuring the potential across a battery’s enclosure. In particular, discharge time is required when the enclosure has been charged.

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Contact Check

1

(Measurement screen) MENU > MEAS > CNT.CHECK

2

Enable the contact check function.

(Default setting: OFF )

1

2

3

Set the threshold (capacitance).

CLR

CANCEL

Reverts the setting to its default value.

Cancels the setting and returns to the previous screen.

(Default setting: 1 nF; valid setting range:

0.5 nF to 50 nF)

6

3

1

2

3

Set the contact check integration time.

CLR

CANCEL

Reverts the setting to its default value.

Cancels the setting and returns to the previous screen.

(Default setting: 10 ms)

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Contact Check

Contact check timing

Contact checks are performed before measurement starts. Enabling the contact check function causes the measurement time to increase. For more information: “11.6 Timing Chart” (p. 139)

Good contact

Contact state

Contact

Separation

TRIG ON

Contact check Delay Measurement

EOM

ERR OFF

ON

OFF

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Contact Check

Contact state

TRIG ON

EOM

ERR

Poor contact

Contact Separation

Contact check Delay

OFF

OFF

Measurement

ON

ON

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Switching the Input Resistance

6.4 Switching the Input Resistance

The voltmeter’s input resistance (internal resistance) can be switched.

(Measurement screen) MENU > MEAS > INPUT Z

AUTO Auto mode

•100 mV to 10 V range:

10 G Ω

Ω

or greater

( Hi-Z will be displayed on the screen; see figure to right.)

•100 V range and 1000 V range:

10 M

10 M Ω Fixed at 10 M Ω (default setting).

Measurement range

AUTO input resistance setting 10 M Ω input resistance setting

100 mV

1000 mV

10 V

Ω <

V

10 M

Ω V

100 V

1000 V

10 M

Ω V

When the input resistance is set to 10 M target’s output resistance (signal source resistance).

Example: a coin-shaped battery with an output resistance of 1 k measured with the 10 M Ω

Ω , measurement is more prone to the effects of the measurement

input resistance setting

Ω and an open voltage of 3 V when

10

10 M

Ω

M

Ω +

1 k

Ω

×

3

=

2 .

9997 V

Output resistance R OUT

Voltage V

Input resistance

R IN

V

R

OUT

R

IN

+

R

IN

V

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Correcting Measured Values

6.5 Correcting Measured Values

Measured values can be calculated using the zero-point adjustment function (NULL function), temperature compensation function, and scaling function.

Calculations are performed in the following order when these functions are enabled:

Measured value

V

V

Zero-point adjustment (NULL)

V

M

=V-V

N

V

M

Temperature compensation (TC)

V

T0

=V

M

/(1+

α

(T-T

0

))

V

T0

Scaling (SCL)

V

S

=A×V

T0

+B

V

S

Display, judgment, external output

NULL value:

V

N

T

: Ambient temperature

α : Temperature coefficient [ppm/°C]

T

0

: Reference temperature

A

: Gain coefficient

B

: Offset 6

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Correcting Measured Values

Adjusting the zero-point (NULL function)

Pressing the [NULL] key causes the measured value that is currently displayed to be acquired as the NULL value (

V

N

). Subsequently, the instrument will display the result of subtracting

V

You can also adjust the zero-point by setting a NULL value as desired.

N

from the measured value.

Adjusting the zero-point using the currently displayed measured value

1

Press the [NULL] key.

2

The zero-point will be adjusted.

The NULL icon will be displayed on the

Measurement screen.

Or

(Measurement screen) MENU > MATH > NULL

The zero-point will be adjusted.

The NULL icon will be displayed on the

Measurement screen.

Pressing the [NULL] key while the NULL function is in the ON state (while the NULL icon is being displayed) will disable the NULL function.

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Correcting Measured Values

Adjusting the zero-point using a user-set value

(Measurement screen) MENU > MATH > NULL

1 2

1

Enable the NULL function.

(Default setting: OFF )

2

Enter a NULL value and touch ENTER .

+/− Toggles between positive and negative values.

CLR

BS

Deletes the entire value.

Deletes the previous character.

CANCEL Cancels the setting and returns to the previous screen.

(Default setting: 0 V; valid setting range:

-1000 V to 1000 V)

The zero-point will be adjusted.

The NULL icon will be displayed on the

Measurement screen.

Pressing the [NULL] key while the NULL function is in the ON state (while the NULL icon is being displayed) will disable the NULL function.

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Correcting Measured Values

Compensating the effects of temperature (temperature compensation function)

This function converts the voltage measured value to the voltage at a specific temperature (the reference temperature) using a user-defined temperature coefficient and displays the result. The temperature dependency of voltage varies greatly with the measurement target. Before using this function, measure the measurement target’s temperature characteristics.

The voltage values

V

T

T

°C and

T

0

and

V

T0

can be expressed as the voltage values of a measurement target at

°C (where the temperature coefficient at

T

0

°C is α

T 0

):

V

T0

=

V

T

=

1 +

α

V

T0

(

T

T − T

0

)

1 + 100 × 10

4

− 6 ×

(

30 −

) Ω ]

T = 3 .

996004

V

T0

: Voltage value after correction [ Ω ]

T

0

: Reference temperature [°C]

α

T0

: Temperature coefficient at

T

0

[1/°C]

V

T

V

T0 Compensation

T

0

Reference temperature

Example:

Under the following conditions, the voltage value at 20°C is calculated as shown below:

• Current temperature: 30°C

• Current battery voltage value (at 30°C): 4 V

• Temperature coefficient at 20°C: 100 ppm/°C

V

T0

=

=

=

1 +

α

V

T0

(

T

T − T

0

)

1 + 100 × 10 −

4

6

3 .

996004

×

(

30 − 20

)

T

Current temperature

•The temperature sensor only detects the ambient temperature. It cannot measure the measurement target’s surface temperature.

•Allow the instrument to warm up adequately prior to measurement. Position the temperature sensor close to the measurement target and allow the temperature sensor and measurement target to adjust adequately to the ambient temperature before use.

(Measurement screen) MENU > MATH > TC

1

Connect the Z2001 Temperature Sensor to the TEMP.SENSOR connector on the rear of the instrument ( p. 27 ).

2

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Enable the temperature compensation function.

(Default setting: OFF ) [email protected]

Correcting Measured Values

3 4

1

1

3

2

Set the reference temperature and touch

ENTER .

(Default setting: 20°C; valid setting range:

-10.0°C to 60°C)

+/− Toggles between positive and negative values.

˄

˅

CLR

Increases the value by 1.

Decreases the value by 1.

Deletes the entire value.

CANCEL Cancels the setting and returns to the previous screen.

2

3

Set the temperature coefficient and touch ENTER .

(Default setting: 0 ppm/°C; valid setting range: -1000 V ppm/°C to 1000 ppm/°C)

The instrument’s temperature compensation function corrects temperature by treating the temperature dependence of the measurement target as a linear function. The error will increase if the measurement target’s temperature dependence diverges from that linear function.

For example, if the temperature coefficient α has been set so that the ambient temperature

T is corrected to the reference temperature

T

0 changes to

T

2

. (See figure below.)

1

, the error will increase if the ambient temperature

6

Large error

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T0

Small error www.

T

0

Reference temperature

T

1

Ambient temperature

.com

T

2

Ambient temperature [email protected]

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Correcting Measured Values

Correcting measured values using a linear expression ( scaling function)

This function corrects measured values using a linear function. Results are calculated as follows:

V

S

=

A × V

T

0

+ B

(where

A

is the gain coefficient,

B

is the offset,

V

S

is the value after scaling, and

V is the value after NULL calculation and temperature compensation ).

T

0

1

In addition, you can convert measured values to other physical properties such as current or speed for display by changing the display unit to the desired string. This functionality is useful when correcting output from a current detection resistor (shunt resistor) or sensor.

(Measurement screen) MENU > MATH > SCALING

2

1

Enable the scaling function.

(Default setting: OFF )

4

2

Set the value of coefficient

A

and touch

ENTER .

BS Deletes the previous character.

CLR Deletes the entire value.

CANCEL Cancels the setting and returns to the previous screen.

(Default setting: 1)

3

2

Set the offset

B

value similarly.

(Default setting: 0)

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Select the unit.

V V (default setting)

NONE

USER

No unit

User-specified unit [email protected]

Correcting Measured Values

5 (When USER is selected)

1

2

Set the desired unit and touch ENT .

Up to three characters may be entered (not including SI prefixes*).

CLR

Deletes the entire value.

[A] Switches to uppercase characters.

BS

< >

Deletes the previous character.

CNCL Cancels the setting and returns to the previous screen.

Moves the cursor.

[a] Switches to

[9] lowercase characters.

Switches to numerals.

[!] Switches to symbols.

* The number of display digits will be adjusted so that the integer portion of the result of ( A × pre-scaling maximum display + |

B

|) is 2 to 4 digits long, and the SI prefix will be automatically added.

Example: For A = 1.5 × 10

1.5 × 10 5

5 and B = -0.5 × 10 3

× 12 + 0.5 × 10 3

in the 10 V range,

= 1800500

Since adjusting the integer portion so that it is two to four digits long yields 1800.500k, the SI prefix “k” will be added.

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Statistical Calculations

6.6 Statistical Calculations

The instrument continually calculates statistics for a maximum of 1,000,000 measurement data points, and the results of those calculations can be displayed on the Measurement screen. (p. 85)

In addition, the results can be printed. (p. 143)

Statistical calculation stops once the number of data points reaches 1,000,000. It can be resumed by clearing the statistical calculation results.

Definition of statistical calculations

The instrument calculates the average value, maximum value, difference between the maximum and minimum values, minimum value, population standard deviation, sample standard deviation, and process capability index.

Maximum value

Minimum value

Maximum value - Minimum value X max - X min

Average value

Population standard deviation

Sample standard deviation

Process capability index* (variability)

Process capability index* (bias)

Cp

=

| |

6 σ n − 1

Cpk

=

|

UPP LOW

+ − 2

x

6 σ n − 1

|

* The process capability index expresses the ability of the process to achieve the target quality in terms of its quality variability and bias width. In general, process capability can be evaluated as indicated below based on the

Cp

and

Cpk

values:

Value

Cp

and

Cpk

> 1.33

1.33 ≥ Cp and Cpk > 1.00

1.00 ≥

Cp

and

Cpk

Process capability

Adequate

Appropriate

Inadequate

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•“UPP” and “LOW” refer to the comparator’s upper limit and lower limit values.

•When the comparator function is set to OFF , the process capability index is not calculated.

•When the number of valid data points is 1, the sample standard deviation and process capability index will be displayed as 0.

•When σ n−1

, is 0,

Cp

and

Cpk

will be 99.99.

•The upper limit for

Cp

and

Cpk

is 99.99. If either value is greater than 99.99, it will be displayed as 99.99.

•When

Cpk

is negative, it will be treated as 0.

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Statistical Calculations

Displaying, clearing, and printing statistical calculation results

DISP > STATISTICS

PAGE1

Example screen: When the BIN function and comparator function are set to OFF

(The screen display varies with the BIN function and comparator function settings. (p. 44))

PAGE2

CLEAR

PRINT

Displays PAGE1 (displayed only when the comparator function or

BIN function is set to ON ).

Displays PAGE2 (displayed only when the comparator function or

BIN function is set to ON ).

Clears the statistical calculation results.

Prints the statistical calculation results (displayed only when the

INTERFACE is set to PRINTER ).

Screen when you touch PAGE1

(When the comparator function is ON )

Screen when you touch PAGE2

(When the comparator function is set to ON )

6

NUM

VAL

Max

No=

Min

No=

P-P

Avg

Sn

Sn-1

Cp

Cpk

Total number of data points

Number of valid data points

Maximum value

Index number

Minimum value

Index number

Maximum value - Minimum value

Average value

Population standard deviation

Sample standard deviation

Process capability index

(variability)*

Process capability index

(bias)*

*Displayed only when the comparator

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The count for each judgment result, the number of measured values outside the measurement range, and the number of errors are shown.

(When the BIN function is set to ON )

The count for each BIN number and the “Out of

BINs” count are shown.

 Scrolls screen content.

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Statistical Calculations

The statistical calculation results are automatically cleared at the following times:

• When the user clears the statistical calculation results

• When the user clears the statistical calculation results

See “If you do not wish to clear the statistical calculation results every time they are printed” (p. 86)

• When the user changes the measurement conditions (temperature compensation, scaling, NULL)

• When the user changes the comparator settings (p. 53)

• When the user changes the BIN settings (p. 57)

• When the instrument is reset (p. 93)

• When measurement conditions are loaded using the panel load function

• When the instrument is turned off (p. 28)

Printing

Touching PRINT prints the statistical calculation results.

If there is no valid data, only the number of data points will be printed. If there is one valid data point, the sample standard deviation and process capability index will not be printed.

If you do not wish to clear the statistical calculation results every time they are printed

(Measurement screen) MENU > I/F

1 2

3

ON

OFF

Automatically clears the statistical calculation results every time they are printed.

Does not clear the statistical calculation results.

(Default setting)

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7 System Settings

7

System Settings

1

7.1 Key Lock (Disabling Instrument Operation)

Operation of the instrument’s keys and touch panel can be disabled by means of the key lock function.

(Measurement screen) MENU > SYSTEM

2

(Default setting: OFF ) The key lock function will be enabled, and the display will return to the Measurement screen.

While the key lock function is enabled, the

KEY icon will be displayed at the top of the screen.

To cancel the key lock:

Touch and hold UNLOCK for at least 1 sec.

The key lock function can also be enabled by the methods listed below, in which case the function cannot be canceled using the UNLOCK button on the touch panel.

•Turning on the EXT I/O’s KEY_LOCK signal (shorting the KEY_LOCK pin and the ISO_COM pin)

•Turning on the LOAD signal for a saved panel number

The [TRIG] key functions even when the key lock function is engaged.

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Buzzer Settings

7.2 Buzzer Settings

You can set the buzzer volume, operation tone, comparator judgment tone, and error tone. The volume setting applies to all buzzer tones.

For more information about how to set the comparator judgment tone, see “To check judgments aurally” (p. 59).

1

(Measurement screen) MENU > SYSTEM

2

3 4

Set the volume.

OFF

SMALL

MED

LARGE

No volume

Low volume

Normal volume (default setting)

High volume

5

Set the operation tone.

OFF

ON

Tone off (default setting)

Tone on

Set the auto-hold tone.

OFF

ON

Tone off (default setting)

Tone on

OFF

ON

No tone (default setting)

Tone on

Set the error tone.

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Adjusting the Screen Brightness

7.3 Adjusting the Screen Brightness

You can adjust the screen brightness to suit the brightness of the location in which the instrument is being used.

(Measurement screen) MENU > SYSTEM





Increases the screen brightness.

Decreases the screen brightness.

(Default setting: 80% brightness)

7.4 Changing the Screen Color

You can change the screen color.

(Measurement screen) MENU > SYSTEM

( BLUE ) ( GRAY )

BLUE

GRAY

Blue screen (default setting)

Gray screen

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Adjusting the Touch Panel Position

1

7.5 Adjusting the Touch Panel Position

You can adjust the touch panel position.

(Measurement screen) MENU > SYSTEM

2

Touch + at each of the four corners and then touch ADJUST DONE .

If you fail to adjust the touch panel position, touch panel input will be improperly recognized. In this case, turn off the instrument and then turn it back on while holding down the [AUTO] , [▲] , and [▼] keys at the same time.

7.6 Setting the Power Supply Frequency

Although the power supply frequency is detected automatically under the default setting ( AUTO ), the frequency can also be set manually.

(Measurement screen) MENU > SYSTEM

AUTO

50 Hz

60 Hz

Automatically detects the power supply frequency and sets it to either

50 Hz or 60 Hz as appropriate when the instrument is turned on or reset and when settings are changed

(default setting).

Sets the power supply frequency to

50 Hz.

Sets the power supply frequency to

60 Hz.

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•Set the power supply frequency accurately in order to stabilize measured values.

•When the automatic setting AUTO is used, the setting will not be changed even if the power supply frequency fluctuates other than when the instrument is turned on or reset.

•If the frequency varies from 50 Hz or 60 Hz, the closest frequency will be set automatically.

Example: For a power supply frequency of 50.8 Hz → The instrument setting will be 50 Hz.

For a power supply frequency of 59.3 Hz → The instrument setting will be 60 Hz.

•In the event of a detection error, the setting will be forcibly set to 50 Hz.

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Selecting Startup Load Settings and a Panel

1

7.7 Selecting Startup Load Settings and a Panel

You can choose which settings to load when the instrument starts up.

(Measurement screen) MENU > SYSTEM

2

LAST Starts up with the last settings in use when the instrument was turned off (default setting).

FACTORY Starts up with the factory settings.

Panel data, system and interface settings will not be initialized.

PANEL Loads the specified panel.

3

(When PANEL is selected)

2

1

Specify the panel number.

Increases the value by 1.

˄

˅

CLR

CANCEL

Decreases the value by 1.

Resets the value to 0.

Cancels the setting and returns to the previous screen.

Valid setting range: 1 to 30 (default setting: 1)

If a panel number that has not been saved is specified, the instrument will not load the panel and will instead start up with the settings that were in effect when it was turned off (same operation as for the LAST setting).

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Setting Output Formats

7.8 Setting Output Formats

The formats used for the screen display, USB flash drive output, print output, and USB keyboard output can be changed. However, when using USB keyboard output, the output data’s delimiter must be set to TAB.

(Measurement screen) MENU > SYSTEM > LOCALE

The default settings are as follows:

• Output date : YYYY-MM-DD

Example: 2015-01-01

• Date delimiter : Slash

• Decimal point : Period

• Output data delimiter

: Comma

DATE

DATE

SEPARATOR

DECIMAL POINT

SEPARATOR

Output date

Y : Year; M : month;

D : day

Date delimiter

/ : Slash

‒ : Hyphen

.

: Period

Decimal point

.

: Period

, : Comma

Output data delimiter

, : Comma

; : Semicolon

<TAB> : Tab

<SP> : Space

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Resetting the Instrument (Reverting the Instrument to Its Factory Settings)

7.9 Resetting the Instrument (Reverting the

Instrument to Its Factory Settings)

There are two types of reset:

Reset

Initializes the instrument to the factory settings. Panel data and interface settings will not be initialized.

There are three ways to trigger this reset:

•Selecting the reset command on the SYSTEM screen

•Turning on the instrument while holding down the [AUTO] and [  ] keys at the same time

•Issuing a communications command (

*RST

,

:SYSTem:PRESet

,

:STATus:PRESet

)

System reset

Initializes all settings to the factory settings.

There are two ways to trigger this reset:

•Selecting the system reset command on the SYSTEM screen

•Turning on the instrument while holding down the [AUTO] , [  ] , and [  ] keys at the same time

1

• The clock setting will not be reset.

• For more information about communications commands, see the Communication Command

Instruction Manual on the included application disc.

This section describes how to initiate a reset on the SYSTEM screen.

(Measurement screen) MENU > SYSTEM

2

7

NORMAL Performs a reset.

SYSTEM Performs a system reset.

Touch OK to perform the reset.

(Example screen: When SYSTEM is selected)

The Measurement screen will be displayed once the reset is complete.

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Resetting the Instrument (Reverting the Instrument to Its Factory Settings)

List of default settings

Parameter

Measured value display

Range switching

Input resistance switching

Number of display digits selection

Integration time

Smoothing function

Trigger

NULL

Temperature compensation

Scaling

Contact check

Comparator

BIN

Absolute value judgment

Auto-hold

Panel save/panel load

Label display

Data output

Key lock

Backlight

Power supply frequency

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Default setting

V

AUTO

10 M Ω

7.5 digits

10 PLC (MEDIUM)

OFF

Number of averaging iterations: 4

Source: INTERNAL

Number of measurements: 1 per trigger

Delay: PRESET

MANUAL time: 0 ms

OFF

NULL value: 0 V

OFF

Temperature coefficient: 0 ppm/°C

Reference temperature: 20°C

OFF

A

: 1

B

: 0

Unit: V

OFF

Threshold: 1 nF

Contact check integration time: 10 ms

OFF

Upper limit and lower limit values: 0 V, ON

HIGH judgment tone: OFF

IN judgment tone: OFF

LOW judgment tone: OFF

Number of tones: 2

Judgment delay: OFF

Number of judgments: 2

OFF

Upper limit and lower limit values: 0 V

OFF

OFF

Hold range: 0.1% of range

NULL value saving: ON

OFF

Label: None

Automatic data output: OFF

Output at judgment: ALL

Measurement data: V°C

Time and date: OFF

OFF

80% brightness

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Output format

Parameter

Buzzer

Communications monitor

Startup settings

EXT I/O

Resetting the Instrument (Reverting the Instrument to Its Factory Settings)

Date: YYYYMMDD

Date delimiter: Slash

Decimal point: Period

Data delimiter: Comma

Volume: MED

Operation tone: ON

Auto-hold tone: ON

Error tone: ON

OFF

Log: OFF

Startup settings: LAST

Panel: No. 01

Input filter: OFF

EOM output: HOLD

Default setting

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8 Preparing to Use USB, RS-232C, GP-IB, and LAN Control

8

Preparing to Use USB, RS-232C,

GP-IB, and LAN Control

8.1 Overview of Interfaces and Associated Features

The instrument’s USB, RS-232C, GP-IB, and LAN interfaces can be used to control the instrument and acquire data from it.

This chapter describes how to prepare to use this functionality, including how to configure associated settings.

For more information about how to control the instrument and acquire data from it, see the sections that best suite your application or intended use.

To control the instrument using communications commands

To create control programs

To control the instrument easily without creating a program

To acquire measured values without using communications commands

Preparations (connections and settings)

•Using the USB interface  p. 98

•Using the RS-232C interface  p. 100

•Using the GP-IB interface  p. 102

•Using the LAN interface  p. 104

Control method:

See the Communication

Command Instruction Manual on the included application disc.

Control method:

Use the sample application software*.

*The software can be downloaded from our website (http://www.hioki.com).

Control method:

See “9 Outputting Data”

(p. 111).

Choose one interface to use. Communications control cannot be used at the same time.

See “13.4 Interface Specifications” (p. 163)

8

About communications time

•Display processing may lag depending on the frequency and content of communications processing.

•Consider the data transfer time when communicating with connected external devices.

1. GP-IB, USB, and LAN transfer times vary with the connected external device.

2. USB and LAN transfer times vary with communications quality.

3. When using 1 start bit, 8 data bits, no parity, and 1 stop bit for a total of 10 bits and a transfer speed (baud rate) setting of N bps, the RS-232C transfer time will be roughly as follows:

Time required to transfer 1 character T (sec./character) = 10 [bits] / baud rate N [bps]

Example: For the string “ABCDE12345”

The two characters “CR+LF” will be added as a message terminator (delimiter), bringing the total of characters transferred to 12. Over a 9600 bps connection, the transfer time would be

12 × T = 12 × 10/9600 = 12.5 ms.

•For more information about command execution times, see the Communication Command

Instruction Manual on the included application disc.

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Preparing to Use an Interface (Connection and Settings)

8.2 Preparing to Use an Interface (Connection and

Settings)

Using the USB interface

Preparation process

(1) Set the instrument’s communications conditions.

(2) Install the USB driver on the computer. ( p. 99 )

(When using the USB COM setting only)

(3) Connect the USB cable. ( p. 99 )

Before connecting the instrument to the computer, you must install the USB driver on the included CD-ROM on the computer. Connecting the instrument to the computer before the driver has been installed will cause the standard USB driver that Microsoft ships with Windows to be automatically installed. The instrument cannot communicate properly with the standard Windows

USB driver.

(1) Set the communications conditions.

(Measurement screen) MENU > I/F

1 2

3

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Select the transmission mode.

www.

COM

(Rear panel)

KEYBD

(Rear panel)

(Default setting)

Select if connecting the instrument to the computer with a USB cable and communicating using a virtual

COM port (when outputting data using a terminal emulator or a user-created program).

Select if connecting the instrument to the computer with a USB cable and outputting data (when outputting data as if it were typed using a keyboard into a text editor or spreadsheet software).

.com

MEMORY

(Front panel)

Select if outputting data to a

USB flash drive. (p. 115) [email protected]

Preparing to Use an Interface (Connection and Settings)

(2) Install the USB driver (when using the USB COM setting only)

Before connecting the instrument to the computer for the first time, install the instrument’s dedicated

USB driver. This step can be skipped if the driver has already been installed. The USB driver can be found on the included application disc or downloaded from our website (http://www.hioki.com).

Installing the driver

1

Log into the computer using an administrator account such as

“ Administrator .”

2

Exit all applications running on the computer.

3

Execute HiokiUsbCdcDdriver.msi.

After executing the command, follow the instructions shown on the screen to install the driver.

Once the driver has been installed, the instrument will be recognized automatically when it is connected to the computer using a USB cable.

If executing the command from the included application disc, use the following command:

X:\driver\HiokiUsbCdcDriver.msi

( X : CD-ROM drive letter)

In some environments, it may take some time for the dialog box to be displayed.

Please wait for the dialog box.

Check which COM port the instrument is connected to using the computer’s Device

Manager.

•If the New Hardware Wizard window is displayed, select No, not this time and then select

Install the software automatically .

•If you connect an instrument with a different serial number, you may be alerted that the computer has detected a new device. Follow the instructions on the screen to install the device driver.

•A message warning that the software has not acquired Microsoft may be displayed. Continue to execute the software.

® Windows ® logo certification

Uninstalling the driver

(If you no longer need to use the driver)

Delete the HIOKI USB CDC Driver under Add or Remove Programs on the Control Panel .

(3) Connect the USB cable.

Before connecting the USB cable, read “Before connecting the communication cables (USB, LAN,

RS-232C, GP-IB)” (p. 10) and “Before making a connection to the USB connector” (p. 11) carefully.

Connect the USB cable to the instrument’s USB connector.

Computer’s USB interface

8

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Preparing to Use an Interface (Connection and Settings)

Using the RS-232C interface

Preparation process

(1) Set the instrument’s communications conditions.

(2) Configure the external device that will be connected to the instrument.

(3) Connect the RS-232C cable. ( p. 101 )

(1) Set the communications conditions.

(Measurement screen) MENU > I/F

1 2

3

Select the transfer speed (baud rate).

(Default setting: 9600 [bps])

(2) Configure the external device that will be connected to the instrument

(computer, programmable controller, etc.).

Be sure to configure the following settings on the device:

Method

Transfer speed

Stop bits

Data bits

Parity check

Flow control

Asynchronous

9600 bps / 19200 bps / 38400 bps (same as instrument setting)

1

8

None

None

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Preparing to Use an Interface (Connection and Settings)

(3) Connect the RS-232C cable.

Before connecting the RS-232C cable, read “Before connecting the communication cables” (p. 10) and “Before connecting to the RS-232C or GP-IB connectors” (p. 11) carefully.

Connect the RS-232C cable to the RS-232C connector. When connecting the cable, be sure to tighten the fastening screws.

1 2 3 4 5

D-sub 9-pin male with fastening screw #4-40

Computer’s

RS-232C interface

RS-232C cable

6 7 8 9

•When connecting the instrument to an external device (DTE), use a crossover cable that satisfies the specifications of the instrument’s connector as well as the external device’s connector.

•The I/O connector implements terminal (DTE) specifications.

•The instrument uses pin numbers 2, 3, and 5.

Other pins are unused.

5

6

3

4

1

2

7

8

9

Pin no.

Common name

Signal name

EIA

DCD CF

RxD BB

TxD

DTR

GND

DSR

BA

CD

AB

CC

RTS

CTS

RI

CA

CB

CE

Signal Remarks

JIS

CD

RD

SD

ER

SG

DR

RS

CS

CI

Data carrier detect

Receive data

Transmit data

Data terminal ready

Signal ground

Data set ready

Send request

Clear to send

Ring indicator

Not connected

Fixed ON level (+5 to +9 V)

Not connected

Fixed ON level (+5 to +9 V)

Not connected

Not connected

8

When connecting the instrument to a computer

Use a D-sub 9-pin male to D-sub 9-pin male crossover cable.

DCD

RxD

TxD

DTR

GND

DSR

RTS

CTS

D-sub 9-pin male

Instrument

6

7

4

5

Pin no.

1

2

3

8

9

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D-sub 9-pin male

Computer (AT-compatible)

6

7

4

5

Pin no.

1

2

3

8

9

DCD

RxD

TxD

DTR

GND

DSR

RTS

CTS [email protected]

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Preparing to Use an Interface (Connection and Settings)

Using the GP-IB interface

Preparation process

(1) Set the instrument’s communications conditions.

(2) Connect the GP-IB cable.

(1) Set the communications conditions.

(Measurement screen) MENU > I/F

1 2

3 4

1

3

2

Set the address.

Increases the address by 1.

˄

˅

CLR

CANCEL

Decreases the address by 1.

Sets the address to 0.

Cancels the setting and returns to the previous screen.

(Default setting: 1, valid setting range: 1 to 30)

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Select the message terminator.

Default setting: LF [email protected]

Preparing to Use an Interface (Connection and Settings)

(2) Connect the GP-IB cable.

Before connecting the GP-IB cable, read “Before connecting the communication cables (USB, LAN,

RS-232C, GP-IB)” (p. 10) and “Before connecting to the RS-232C or GP-IB connectors” (p. 11) carefully.

Connect the GP-IB connection cable to the instrument’s GP-IB connector. When connecting the cable, be sure to tighten the fastening screws.

Computer or other device’s

GP-IB interface

GP-IB cable

Recommended cable:

9151-02 GP-IB Connector Cable (2 m)

8

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Preparing to Use an Interface (Connection and Settings)

Using the LAN interface

The instrument ships standard with an 100Base-TX Ethernet interface. You can control the instrument with a computer or other device by using a 10Base-T or 100Base-TX compatible LAN cable (up to 100 m) to connect the instrument to a network.

Connecting the instrument and computers to a network

Connecting the instrument to a single computer

Hub

Hub

In addition, you can control the instrument using communications commands by creating a program and having it connect to the communications command port using TCP. (See the Communication

Command Instruction Manual on the included application disc.)

Preparation process

(1) Set the instrument’s communications conditions. ( p. 105 )

(2) Connect a LAN cable to the instrument. (p. 108 )

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Preparing to Use an Interface (Connection and Settings)

(1) Set the communications conditions.

Check the settings before configuring them.

The settings for both the instrument and external devices differ depending on whether you are connecting the instrument to an existing network or creating a new network consisting of the instrument and a single computer.

Connecting the instrument to an existing network

The following settings must be assigned in advance by the network system administrator

(department). Be sure not to use settings that are already in use by another device.

• Instrument’s address setting

IP address: ................................ ___.___.___.___

Subnet mask: ............................ ___.___.___.___

• Gateway

Whether to use a gateway: ....... Use / Do not use

IP address (if using): ................. ___.___.___.___ (If not using, set to 0.0.0.0.)

• Port number used by communications commands: ____ (Default: 23)

Creating a new network consisting of the instrument and a single computer

(Using the instrument on a local network without any outside connection)

It is recommended to use the following addresses if there is no administrator, or if the settings are left to your discretion:

(Example settings)

IP addresses

Addresses should be assigned in order, for example:

Computer: 192.168.0.1

First instrument: 192.168.0.2

Second instrument: 192.168.0.3

Third instrument: 192.168.0.4

Subnet mask: ................ 255.255.255.0

Gateway: ....................... OFF

Port number: ................. 23 8

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Preparing to Use an Interface (Connection and Settings)

Settings

IP Address

Subnet Mask

Default Gateway

Port

This address is used to recognize individual devices that are connected to a network. Use an address that is not already in use by another device.

This setting is used to divide the IP address into an address that indicates the network and an address that indicates the device. Use the same subnet mask setting as other devices on the same network.

When connecting the instrument to a network

When the computer being used (or the device you are using to communicate with the instrument) is on a different network than the network to which the instrument is connected, specify a device to serve as the gateway by setting its IP address.

If the instrument is on the same network as the computer, you should generally use the same default gateway setting as the computer.

When connecting the instrument to a single computer or when not using a gateway

Set the IP address to 0.0.0.0

.

Specify the TCP/IP port number to use for communications command connections.

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1

(Measurement screen) MENU > I/F

2

Preparing to Use an Interface (Connection and Settings)

3 4

1

2

4

3

Set the IP address, subnet mask, gateway, and communications command port.

(Example screen: IP address setting)

˄

˅

CLR

CANCEL

Increases the address by 1.

Decreases the address by 1.

Sets the address to 0.

Cancels the setting and returns to the previous screen.

(Default settings: IP address [0.0.0.0], subnet mask [255.255.255.0], default gateway [0.0.0.0], communications command port [23])

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Preparing to Use an Interface (Connection and Settings)

(2) Connect the LAN cable.

Before connecting the LAN cable, read “Before connecting the communication cables (USB, LAN,

RS-232C, GP-IB)” (p. 10) carefully.

Connect the LAN cable to the instrument’s LAN connector.

Orange LED

Off: 10Base-TX

On: 100Base-TX

LAN cable

Green LED

On: Link

Flashing: Communicating

Instrument’s LAN connector

Computer or hub

Recommended cables

9642 LAN Cable (optional) or a 100Base-TX or 10Base-T compatible LAN cable (up to 100 m, straight or crossover cable)

If the green LED fails to light up after connecting a LAN cable, the instrument or connected device may be malfunctioning, or the LAN cable may have a break in it.

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Communications Settings

8.3 Communications Settings

Communications monitor (displaying communications commands)

When using the communications monitor function, communications commands and query responses can be displayed on the screen.

(Measurement screen) MENU > I/F

ON

OFF

LOG

Turns on the communications monitor display.

Turns off the communications monitor display (default setting).

When this checkbox is selected, communications commands and query responses are recorded on the USB flash drive.

The communications monitor is displayed on the Measurement screen.

When selecting the LOG checkbox, set the interface to USB MEMORY and connect the

USB flash drive to the front of the instrument.

See “10 Using a USB Flash Drive” (p. 115)

Messages shown in the communications monitor and their meanings

The following messages will be displayed if an error occurs during command execution:

If a command error occurs

(Illegal command, illegal argument format, etc.)

If an argument is out of range

If an execution error occurs

> #CMD ERROR

> #PARAM ERROR

> #EXE ERROR

In addition, the approximate location of the error will also be displayed.

Improper argument (10000 out of range)

Spelling error (RANGE misspelled as RENGE)

> :VOLT:DC:NPLC 10000

> # ^ PARAM ERROR

> :VOLT:DC:RENGE 100

> # ^ CMD ERROR

8

•When an illegal character code is received, the character code will be displayed in hexadecimal notation enclosed in “< >.”

For example, the character 0xFF would be displayed as “

<FF>

,” and the character 0x00 would be displayed as “

<00>

.”

•The following messages will be displayed if an RS-232C interface error occurs:

If an overrun error occurs (received data lost)

If a break signal is received

If a parity error occurs

If a framing error occurs

#Overrun Error

#Break Error

#Parity Error

#Framing Error

•If multiple commands have been sent in series, the position of the error display may shift.

•If only hexadecimal characters are displayed or if one of the above messages is displayed when using the

RS-232C interface, check the communications conditions or lower the communications speed and try again.

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Communications Settings

Setting the format for measurement

You can set the format used by the instrument in response to measured value queries (

:FETCh?

,

:READ?

, etc.). When using the FLOAT setting, the instrument will automatically transition to the

STOP state when transitioning to the REMOTE state.

(Measurement screen) MENU > I/F

RANGE FIX Fixes the exponent part based on the measurement range (default setting).

FLOAT Uses floating-point notation.

•The output format cannot be changed using the data output function. (p. 114)

•Use the FLOAT setting if you require compatibility with an SCPI-compatible multimeter.

•For more information about the communications window, see the Communication Command

Instruction Manual on the included application disc.

Setting the model name acquired by commands

1

You can set the string returned to the external device when the instrument’s model name is acquired with a communications command (

*IDN?

). (When this parameter has not been set, the instrument will return HIOKI, model name, serial number, software version ).

(Measurement screen) MENU > I/F

2

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(Default setting: Blank) www.

Enter the desired text and touch ENT .

Up to 127 characters can be entered.

.com

CLR

Deletes all characters.

BS

CNCL Cancels the setting and returns to the previous screen.

< >

Deletes the previous character.

[A] Switches to uppercase characters.

[a] Switches to lowercase characters.

[9]

Switches to numerals.

Moves the cursor.

[!] Switches to symbols.

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9 Outputting Data

9

Outputting Data

When the data output setting is enabled, you can automatically output data to an external device such as a programmable controller or computer by pressing the [TRIG] key or inputting a trigger from the EXT I/O connector. (With this approach, there is no need to send a communications command.)

•When outputting data to the GP-IB interface, communications commands are used.

See “Preparing to Use USB, RS-232C, GP-IB, and LAN Control” (p. 97) and the

Communication Command Instruction Manual on the included application disc.

•When outputting data to a USB flash drive, see “10 Using a USB Flash Drive” (p. 115).

9.1 Interface Settings

Set which interface to use.

(Measurement screen) MENU > I/F > I/F Select

Setting

USB

COM

USB

KEYBD

USB

MEMORY

LAN

RS-232C

PRINTER

GP-IB

Overview

Connect the instrument to a computer with a USB cable. Data can be captured with a terminal emulator or a user-created program.

Connect the instrument to a computer with a USB cable. Data can be output to a text editor or spreadsheet as if it were being typed on a keyboard.

When the SAVE key is touched, data will be output to the USB flash drive inserted into the receptacle on the front of the instrument. For more information about outputting data to a USB flash drive, see “10 Using a USB Flash Drive” (p. 115).

Connect the instrument to a computer with a LAN cable. Data can be captured with either a terminal emulator or a user-created program.

Connect the instrument to a computer’s COM port or a programmable controller with an

RS-232C cable. Data can be captured with either a terminal emulator or a user-created program.

Connect the instrument to the optional 9442 Printer with an RS-232C cable. The data will be printed out.

Connect the instrument to a computer with a GP-IB cable. Data cannot be output automatically in this configuration.

9

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Output Methods

9.2 Output Methods

1 Configure the interface and EXT I/O and connect the instrument.

„ USB COM , USB KEYBD :

See “Using the USB interface” (p. 98).

„ RS-232C :

See “Using the RS-232C interface”

(p. 100).

„ LAN :

See “Using the LAN interface” (p. 104).

„ PRINTER :

See “12 Printing” (p. 143).

„ EXT I/O (when inputting the TRIG signal):

See “11 External Control (EXT I/O)”

(p. 125).

2 Configure the instrument.

Set the automatic output setting ( DATA

OUT ) to ON .

(When selecting PRINTER , this step is not necessary.)

See “9.3 Data Output Settings” (p. 113)

3

Prepare the device to which the instrument will be connected.

„ USB COM , LAN , RS-232C :

Place the device to which the instrument will be connected in the receive standby state. If connecting the instrument to a computer, launch the application and place it in the receive standby state.

„ USB KEYBD :

1. Launch the application, text editor, or spreadsheet.

2. Place the cursor at the position in the text editor or other application at which you wish to enter the text.

3. Set the input mode to half-byte characters.

Data cannot be output automatically to the

GP-IB interface.

4

Output the data.

Press the [TRIG] key or input the EXT I/O

TRIG signal.

Measurement will start with trigger input, and after measurement is complete, the measured value will be output.

If the instrument is in the STOP state or the trigger source is set to EXTERNAL , the number of output data points will be the same as the measurement count setting (1 sample per trigger to 5000 samples per trigger).

See “Trigger measurement (measurement with user-specified timing)” (p. 38).

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Data Output Settings

9.3 Data Output Settings

(Measurement screen) MENU > I/F

1 Enable automatic output.

2 (To change the information that will be output)

1

(Default setting: OFF )

When automatic output is set to ON , do not use communications commands. Doing so may cause measured value data to be sent twice.

2

MEASUREMENT

ITEM

DATE-TIME

COMP

CONDITION

V : Voltage value (default setting)

V, TEMP : Voltage value and temperature

Measurement time and date (default setting: OFF

[output disabled])

ALL : All judgments (default setting)

HI : HI judgments

IN : IN judgments

LO : LO judgments

HL : HI and LO judgments

•If comparator judgment or BIN measurement is set to ON , judgment results will also be output.

•When the interface is set to USB KEYBD ,

DATE-TIME is not output.

9

3

(To change the output format)

See “7.8 Setting Output Formats” (p. 92).

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Data Output Settings

Output data format

Example: When the scaling function is OFF, the number of display digits is 7.5, and the output format is set to the decimal period

(The output data format varies depending on the scaling function setting, number of display digits setting, and output format setting.)

See “Correcting measured values using a linear expression (scaling function)” (p. 82), “3.6

Changing the Number of Display Digits” (p. 48), and “7.8 Setting Output Formats” (p. 92).

USB COM

, USB KEYBD ,

RS-232C

, LAN

:

Voltage (units: mV, V)

Measured value range

100 mV

1 V

10 V

100 V

1000 V

Measured value

±  .

 E-03

±  .

 E-03

±  .

 E+00

±  .

 E+00

±  .

 E+00

When +OvrRng or

−OvrRng is displayed

±990.00000E+35

±9900.0000E+34

±99.000000E+36

±990.00000E+35

±9900.0000E+34

At measurement error

+991.00000E+35

+9910.0000E+34

+99.100000E+36

+991.00000E+35

+9910.0000E+34

Temperature (unit: °C)

Measured value

±  .



When +OvrRng or

−OvrRng is displayed

±9.900E+37

At measurement error

+9.910E+37

USB MEMORY :

Voltage (units: mV, V)

Measured value

When +OvrRng or

−OvrRng is displayed

±  .

 E±0  ±9.9000000E+37

At measurement error

+9.9100000E+37

Temperature (unit: °C)

Measured value

±  .

 E+0 

When +OvrRng or

−OvrRng is displayed

±9.90E+37

At measurement error

+9.91E+37

If there are not enough digits in the integer portion, digits with the value of 0 will be added.

Example: If the measured value in the 1000 V range is 1 V, the value will be indicated as

+0001.0000E+00. In the event of the +OvrRng or −OvrRng display, the value will be ±9.9E+37, and in the event of a measured value error, the value will be 9.91E+37.

For more information about output when the interface is set to PRINTER , see “Print examples” (p. 148).

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10 Using a USB Flash Drive

10

Using a USB Flash Drive

10.1 Overview

Measurement data, screenshots, and measurement conditions stored in the instrument’s internal memory can be output to a USB flash drive. In addition, measurement conditions stored on a USB flash drive can be loaded into the instrument’s internal memory. When using a USB flash drive, the

USB connector on the rear of the instrument cannot be used.

Outputting data

Loading measurement conditions

Displaying information about a USB flash drive

Data is output from the instrument’s internal memory to the USB flash drive.

Data that can be output Remarks

Measurement data (latest measured values only)

Measurement data (all)

Screenshot data

•Text format

•Up to 10000 data points

Up to 5000 data points

Current measurement conditions

Panel data can be output with measurement conditions.

Measurement conditions stored on a USB flash drive can be loaded into the instrument’s internal memory. (Panel data can be loaded with measurement conditions.)

The amount of space on the flash drive in use can be displayed.

If the number of measurement data points exceeds 10000, the file will be segmented automatically.

Data save time

Time may be required to save data depending on the type of USB flash drive and its internal file structure.

Compatible USB flash drive specifications

Connector

Electrical specifications

Bus power

Number of ports

Compatible USB flash drives

USB Type A connector

USB 2.0

Max. 500 mA

1

Drives that support the USB Mass Storage Class (not VFAT compatible)

10

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Connecting a USB Flash Drive

10.2 Connecting a USB Flash Drive

Before connecting, read “Before connecting a USB flash drive” (p. 11) carefully.

Inserting the drive

Insert the USB flash drive into the instrument’s USB flash drive connector.

•Do not insert a USB flash drive that does not support the Mass

Storage Class.

•Not all commercially available flash drives are supported.

•If the instrument does not recognize a USB flash drive, try a different drive.

Removing the drive

Verify that the instrument is not accessing the USB flash drive (to output or load data, etc.) and then pull it out of the connector.

It is not necessary to perform any “eject” operation on the instrument.

Screen displays when using a USB flash drive

The USB icon will be displayed at the top right of the screen when a USB flash drive has been recognized by the instrument.

You can check the amount of available space on the USB flash drive as well as the drive’s capacity on the File screen.

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Setting the Interface

1

10.3 Setting the Interface

Before outputting data to a USB flash drive, you must set the interface to USB flash drive mode.

When using a USB flash drive, the USB connector on the rear of the instrument cannot be used.

(Measurement screen) MENU > I/F

2

3

When USB COM or USB KEYBD is selected, data cannot be saved on a USB flash drive.

10.4 Setting the Output Data Type

This section describes how to set the type of data to output to the USB flash drive.

(Measurement screen) MENU > FILE

Select the output data type.

SCREEN COPY Outputs the contents of the instrument’s screen as a

BMP file.

TEXT DATA Outputs measured values as text data (default setting).

10

To change the output format

See “7 Setting Output Formats”

(p. 92).

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Outputting Data (USB Flash Drive)

10.5 Outputting Data (USB Flash Drive)

Outputting measurement data or screenshots

Touch SAVE to output the measurement data* or screenshot* as of the time you touched the button to the USB flash drive.

*The output format reflects the output format setting (p. 117).

You can also take a screenshot by pressing and holding the [TRIG] key for 2 seconds.

(You can take screenshots with the [ TRIG] key even if the output format is set to TEXT DATA .)

The following actions cause a new save file to be created:

• Inserting a USB flash drive while the instrument is on

(Even if there are already files on the USB flash drive, a new folder will be created.)

• Turning on the instrument with a USB flash drive already inserted

Measurement data will be appended to a single file until the number of data points in the file reaches 10000, at which point a new file will be created automatically.

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Outputting Data (USB Flash Drive)

Outputting all measurement data

All measurement data stored in the instrument’s internal memory (up to 5000 data points) can be output at once to the USB flash drive.

(Measurement screen) MENU > FILE

1 2

(To change the filename)

3

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4

2

Enter text and touch ENT .

Up to 8 characters can be entered.

CLR

BS

Deletes all characters.

Deletes the previous character.

CNCL Cancels the setting and returns to the previous screen.

< >

Moves the cursor.

[A] Switches to uppercase characters.

[a]

[9]

Switches to lowercase characters.

Switches to numerals.

[!] Switches to symbols.

10 www.

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Touch OK to output the measurement data to the

USB flash drive. [email protected]

119

Outputting and Loading Measurement Conditions (USB Flash Drive)

10.6 Outputting and Loading Measurement

Conditions (USB Flash Drive)

Outputting measurement conditions

The current measurement conditions as well as panel data saved on the instrument can be output to a USB flash drive. This function is convenient when you wish to back up settings or copy settings to multiple instruments. You can select whether to output panel data.

1

(Measurement screen) MENU > FILE

2

(To change the filename)

2

Enter text and touch ENT .

Up to 8 characters can be entered.

CLR

BS

Deletes all characters.

Deletes the previous character.

CNCL Cancels the setting and returns to the previous screen.

< >

Moves the cursor.

[A] Switches to uppercase characters.

[a]

[9]

Switches to lowercase characters.

Switches to numerals.

[!] Switches to symbols.

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3

Outputting and Loading Measurement Conditions (USB Flash Drive)

4

5

Select whether to output panel data.

Checked Outputs panel data (default setting).

Not checked Does not output panel data.

The output files have the following extensions:

.SET: Measurement conditions

.ALL: Measurement conditions and panel data

Touch OK to output the selected measurement conditions to the USB flash drive.

The output settings are recorded as textual communications commands in a settings file on the

USB flash drive. This file can be sent as a command during initial configuration when writing a program to a connected instrument.

10

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Outputting and Loading Measurement Conditions (USB Flash Drive)

Loading measurement conditions

1

This section describes how to load measurement conditions stored on a USB flash drive into the instrument. Communications settings are not loaded.

(Measurement screen) MENU > FILE

2

3 4

Select the measurement conditions.

File content varies with the extension:

.SET: Measurement conditions

.ALL: Measurement conditions and panel data

Select whether to load interface settings.

Checked Loads interface settings.

Not checked Does not load interface settings.

5

Touch OK to replace the instrument’ settings with the loaded measurement settings.

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Files

10.7 Files

You can check the data stored on a USB flash drive on a computer. (USB flash drive contents cannot be checked using the instrument.)

File format

Data is saved in the file format described below. The first time a USB flash drive is inserted into the instrument, the folder listed in the table below will be created automatically. (If the folder is deleted, it will be created automatically the next time the drive is inserted into the instrument.)

Extension Folder name Contents

Output measurement data

See “Outputting measurement data or screenshots” (p. 118)

Measurement data from the instrument’s internal memory output collectively

See “Outputting all measurement data” (p. 119).

HIOKI_DM

Screenshot data

See “Outputting measurement data or screenshots” (p. 118).

Measurement condition data

See “Outputting and Loading Measurement

Conditions (USB Flash Drive)” (p. 120).

Measurement condition data and panel data

See “Outputting and Loading Measurement

Conditions (USB Flash Drive)” (p. 120).

XXX: Sequential number from 000 to 199

Save filename

MEAS_XXX or user-specified filename

MEM_XXX or user-specified filename

SCRN_XXX

SET_XXX or user-specified filename

SET_XXX or user-specified filename

.CSV

.CSV

.BMP

.SET

.ALL

Types and number of files used by the instrument

• The instrument cannot display two-byte characters (Japanese, etc.). Two-byte characters will be displayed as “ ??

.”

• Filenames used by the instrument have 8-character filenames and 3-character extensions (for example, “abcdefgh.csv”).

10

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11 External Control (EXT I/O)

11

External Control (EXT I/O)

The EXT I/O connector on the rear of the instrument provides the following functionality:

• Outputting signals such as the measurement complete signal (EOM signal) and judgment results signals (HI, IN, LO) from the instrument to an external device

• Controlling the instrument by inputting signals such as the TRIG and KEY_LOCK signals from an external device.

11

Outputting or inputting signals

All signals are isolated from the instrument’s measurement circuitry and from ground (but share a common potential with the input and output common pins).

The instrument’s input circuitry can be switched to support either current sink output (NPN) or current source output (PNP) (p. 126). Connect the instrument to a control system after reviewing the input and output ratings, internal circuit architecture, and safety precautions (p. 12), and be sure to use the instrument as designed.

11.1 External Control Measurement Process

Preparations

(1) Check the input and output specifications of the external device that you are connecting to the instrument.

(2) Configure the instrument’s NPN/PNP switch. (p. 126)

(3) Connect the external device to the instrument. (p. 127)

(4) Configure external input and output on the instrument. (p. 136)

(5) Test input and output. (p. 138)

Measurement

Connect the instrument to the measurement target and perform measurement.

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Switching between Current Sink (NPN) and Current Source (PNP)

11.2 Switching between Current Sink ( NPN) and

Current Source (PNP)

Before using, read “Before switching the current sink (NPN) / current source (PNP)” (p. 11) carefully.

The NPN/PNP switch is used to change the type of programmable controller that can be supported.

The instrument ships with the switch in the NPN position.

Left: Current sink (NPN)

Right: Current source (PNP)

See “Internal circuit architecture” (p. 133).

Input circuit

Output circuit

ISO_5V power supply output

NPN/PNP switch setting

NPN

Supports programmable controllers that generate sink output.

PNP

Supports programmable controllers that generate source output.

Non-polar

+5 V output

Non-polar

-5 V output

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Connections (Instrument and Control Device)

11.3 Connections (Instrument and Control Device)

Before connecting, read “Before connecting to the EXT I/O connector” (p. 12) carefully.

The EXT I/O interface can be used to perform the following types of control:

Capability

(1) Acquiring comparator judgment results

(2) Acquiring BIN judgment results

(3) Loading panel data

(4) General-purpose input and output

(5) Key lock

(6) Printing

Operations (signals)

Start measurement (TRIG signal)

↓

Measurement complete (EOM signal)

↓

Acquire judgment results (HI, IN, LO, ERR signals)

Start measurement (TRIG signal)

↓

Measurement complete (EOM signal)

↓

Acquire measured values (BIN0 to BIN9 signals, OB signal,

ERR signal)

Specify panel (LOAD0 to LOAD4 signals)

↓

Start measurement after panel load operation (TRIG signal)

:IO:INPut?

command (IN0, IN1 signals)

:IO:OUTPut?

command (OUT0 to OUT7 signals)

Enable key lock (KEY_LOCK signal)

Print (PRINT signal)

11

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Connections (Instrument and Control Device)

Instrument connector and compatible connectors

19 18 17 16 15 14 13 12 11 10 9 8 7 6 5 4 3 2 1

37 36 35 34 33 32 31 30 29 28 27 26 25 24 23 22 21 20

Instrument connector

Compatible connectors

D-sub 37-pin

Female #4-40 inch screw

•DC-37P-ULR (solder type)

•DCSP-JB37PR (crimp connection type)

Japan Aviation Electronics

Industry, Ltd.

EXT I/O connector

Pin

1

4

5

2

3

6

7

8

Signal

TRIG,

IN0

(Reserved)

KEY_LOCK

LOAD1

LOAD3

(Reserved)

(Reserved)

ISO_5V

9

10

ISO_COM

ERR

11 HI

12 LO

13

14

15

16

17

BIN0,

OUT1

BIN2,

OUT3

BIN4,

OUT5

BIN6,

OUT7

BIN8,

OUT9

18

19

(Reserved)

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128

I/O

IN n/a

IN

IN

IN n/a

Function

Trigger

General-purpose input n/a

Key lock

Panel load

Panel load n/a

Logic Pin

Edge n/a n/a

20

Signal

(Reserved)

21 (Reserved)

Level 22

Level 23

Level 24

LOAD0

LOAD2

LOAD4

25 (Reserved) n/a n/a n/a 26

PRINT,

IN1 n/a n/a

OUT

OUT

OUT

OUT

OUT

OUT

OUT

OUT n/a n/a

Isolated power supply +5 V

(-5 V) output

Isolated power supply common

Measurement error

Comparator judgment

Comparator judgment

BIN judgment

General-purpose output

BIN judgment

General-purpose output

BIN judgment

General-purpose output

BIN judgment

General-purpose output

BIN judgment

General-purpose output n/a n/a n/a

27

28

Level 29 (Reserved)

Level 30

ISO_COM

EOM

IN

Level 31

Level 32

Level 33

Level 34

Level 35

Level 36 n/a n/a

OB,

OUT0

BIN1,

OUT2

BIN3,

OUT4

BIN5,

OUT6

BIN7,

OUT8

BIN9,

OUT10

37 (Reserved)

.com

I/O Function Logic n/a n/a n/a n/a

IN

IN

IN n/a

IN n/a

OUT n/a

Panel load

Panel load

Panel load n/a

Measured value printing

General-purpose input

Isolated power supply common

Measurement complete n/a n/a

Level

Level

Level n/a

Edge n/a

Level n/a n/a

OUT

OUT

OUT

OUT

OUT

OUT

OUT

Comparator judgment

BIN judgment

General-purpose output

BIN judgment

General-purpose output

BIN judgment

General-purpose output

BIN judgment

General-purpose output

BIN judgment

General-purpose output

BIN judgment

General-purpose output

Level

Level

Level

Level

Level

Level

Level n/a n/a n/a [email protected]

Connections (Instrument and Control Device)

The connector frame is connected to the instrument’s rear panel (metal portion) as well as the power supply inlet’s protective ground terminal.

When loading panel data by means of a command or touch panel operation, fix pins 4, 5, 22, 23, and 24 to ON or OFF (so that they are all either open or all shorted).

For more information about checking EXT I/O input and output, see “11.5 Input Test/Output Test”

(p. 138).

Signal functions

(1) Isolated power supply output

Pin

8

9, 27

Signal

ISO_5V

ISO_COM

NPN/PNP switch setting

NPN

Isolated power supply +5 V

PNP

Isolated power supply -5 V

Isolated power supply common Isolated power supply common

(2) Input signals

Signal

TRIG

PRINT

KEY_LOCK

LOAD0 to

LOAD4

IN0,

IN1

Description

•The instrument operates at the TRIG signal’s ON edge.

•Operation varies depending on the trigger source.

When the trigger source is EXTERNAL : Measurement is performed the set number of times.

When the trigger source is INTERNAL : The TRIG signal is ignored.

•Measurement must be delayed (by the delay time) after switching ranges or loading panel data in order for measured values to stabilize. The delay time varies with the measurement target.

•When automatic output is set to ON , the measured value being held internally will be output immediately after TRIG signal input.

For more information

“3 Starting

Measurement”

(p. 37)

“9 Data Output

Settings” (p. 113)

By turning on the PRINT signal, it is possible to print the measured value and judgment result that are current as of the signal’s edge.

When the KEY_LOCK signal is on, all instrument key operations and touch panel operations (except operation to cancel the keylock state) are ignored.

•Inputting the LOAD signal corresponding to the desired panel number for 10 ms will cause that panel to be loaded. Do not change the LOAD signal until the load or switching operation is complete. LOAD0 is the LSB, while LOAD4 is the MSB.

•The TRIG signal is ignored while panel load operation is being performed.

•The LOAD signal is valid even when the instrument is being controlled using communications commands (i.e., when the instrument is in the remote state).

•All key operations and touch panel operations are ignored while the LOAD signal for a panel number for which settings have been saved is on.

•When loading panel data by means of a command or touch panel operation, fix pins 4, 5, 22, 23, and 24 to ON or OFF (so that they are all either open or all shorted).

These pins can be used as general-purpose input pins to monitor the status of input with the

:IO:INPut?

command.

“12 Printing”

(p. 147).

“7 Key Lock

(Disabling Instrument

Operation)” (p. 87)

•“(4) Signal table”

(p. 132)

•“5.2 Loading

Measurement

Conditions (Panel

Load Function)”

(p. 64)

Communication

Command Manual on the included application disc.

11

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Connections (Instrument and Control Device)

(3) Output signals

Signal

EOM

ERR

HI, IN, LO

OB,

BIN0 to BIN9

OUT0 to

OUT10

Description

This signal is output when measurement completes. The comparator judgment results, ERR signal, and BIN signal are updated when the EOM signal is output.

This signal is output when a contact error (display: NoCntct ), temperature compensation error (display: Err.TC

), or other error occurs.

All comparator judgment result output turns off while the ERR signal is output. The ERR signal is also output when the instrument encounters an internal circuitry error or a calculation results error.

These signals are used to output comparator judgment results.

For more information

“EOM signal output type” (p. 137)

“3.5 Measurement

Error Displays

(Displays Other Than

Measured Values)”

(p. 46)

The BIN judgment results are output from pins 13 to 17 and pins

31 to 36 when BIN measurement is set to ON . If the results do not correspond to BIN0 to BIN9, the OB signal (pin 31) will turn on.

Pins 13 to 17 and pins 31 to 36 can be used as general-purpose output pins while BIN measurement is set to OFF. Output signals can be controlled with the

:IO:OUTPut

command.

•“4.3 BIN

Measurement (Using

Multiple Judgment

Standards)” (p. 57)

•See explanation on following page.

•“4.3 BIN

Measurement (Using

Multiple Judgment

Standards)” (p. 57)

•See explanation on following page.

•Communication

Command Manual on the included application disc.

0 The TRIG signal is ignored while the measurement conditions are being changed.

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Connections (Instrument and Control Device)

Output signal functionality can be switched when the BIN measurement setting is changed.

When BIN measurement is set to OFF (default setting), these signals can be used as 11-bit general-purpose output pins in addition to being used for the purpose of acquiring comparator judgment results (HI, IN, LO).

When BIN measurement is set to ON , the BIN judgment results are output from pins 13 to 17 and pins 31 to 36.

See “4.3 BIN Measurement (Using Multiple Judgment Standards)” (p. 57).

14

15

16

17

18

19

When BIN measurement is [OFF]

Pin Signal Pin Signal

9 ISO_COM 28 EOM

10

11

12

13

ERR

HI

LO

OUT1

29

30

31

32

IN

OUT0

OUT2

OUT3

OUT5

OUT7

OUT9

33

34

35

36

37

OUT4

OUT6

OUT8

OUT10

14

15

16

17

18

19

10

11

12

13

When BIN measurement is [ON]

Pin Signal Pin Signal

9 ISO_COM 28 EOM

ERR

BIN0

29

30

31

32

OB

BIN1

BIN2

BIN4

BIN6

BIN8

33

34

35

36

37

BIN3

BIN5

BIN7

BIN9

11

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Connections (Instrument and Control Device)

(4) Signal table

LOAD0 to LOAD4

ON

ON

ON

ON

ON

ON

OFF

OFF

OFF

OFF

OFF

OFF

ON

ON

ON

ON

ON

ON

ON

ON

OFF

OFF

OFF

OFF

OFF

OFF

OFF

OFF

ON

ON

ON

ON

ON

ON

ON

ON

ON

ON

ON

ON

ON

ON

ON

ON

ON

OFF

OFF

OFF

OFF

OFF

OFF

OFF

ON

OFF

OFF

OFF

OFF

OFF

OFF

OFF

OFF

LOAD4 LOAD3 LOAD2 LOAD1 LOAD0 Panel number

OFF OFF

OFF

OFF

OFF

OFF

OFF

ON

ON

ON

ON

OFF

OFF

OFF

OFF

ON

ON

ON

ON

OFF

OFF

OFF

OFF

ON

ON

ON

ON

OFF

OFF

OFF

OFF

ON

ON

ON

ON

OFF

OFF

ON

ON

OFF

OFF

ON

ON

OFF

OFF

ON

ON

OFF

OFF

ON

ON

OFF

OFF

ON

ON

OFF

OFF

ON

ON

OFF

OFF

ON

ON

OFF

OFF

ON

ON

OFF

ON

OFF

ON

OFF

ON

OFF

ON

OFF

ON

OFF

ON

OFF

ON

OFF

ON

OFF

ON

OFF

ON

OFF

ON

OFF

ON

OFF

ON

OFF

ON

OFF

ON

OFF

ON

Panel 16

Panel 17

Panel 18

Panel 19

Panel 20

Panel 21

Panel 22

Panel 23

Panel 24

Panel 25

Panel 26

Panel 27

Panel 28

Panel 29

Panel 30

−

−

Panel 1

Panel 2

Panel 3

Panel 4

Panel 5

Panel 6

Panel 7

Panel 8

Panel 9

Panel 10

Panel 11

Panel 12

Panel 13

Panel 14

Panel 15

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Connections (Instrument and Control Device)

Internal circuit architecture

•Use ISO_COM as the common pin for both input signals and output signals.

•If a large current will flow to common wiring, branch the output signal common wiring and input signal common wiring near the ISO_COM pin.

NPN setting

Instrument Programmable controller, etc.

8 ISO_5 V

2 kΩ

1 kΩ

1 TRIG, IN0

Output

2

Common

EXT I/O MODE selector

NPN

Internal isolated power supply

10 Ω

Input

10 ERR

11 HI

11

9

27

Internal isolated common

(Isolated from the instrument’s protective ground)

ISO_COM

ISO_COM

Common

Do not connect an external power supply to pin 8.

PNP setting

Instrument

8 ISO_5 V

Programmable controller, etc.

2 kΩ

1 kΩ

1 TRIG, IN0

Output

2

Common

EXT I/O MODE selector

PNP

Internal isolated power supply

10 Ω

Input

10 ERR

11 HI

9 ISO_COM

Common

27 ISO_COM

Internal isolated common

(Isolated from the instrument’s protective ground)

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Connections (Instrument and Control Device)

Electrical specifications

Input signals

Output signals

Built-in isolated power supply

Input type

Input on

Photocoupler-isolated no-voltage contact input (current sink or current source)

Residual voltage of 1 V or less, input on current of 4 mA (reference values)

Open (interrupting current of 100 µA or less) Input off

Output type

Maximum load voltage

Maximum output current

Residual voltage

Output voltage

Maximum output current

Photocoupler-isolated open drain output (non-polar)

30 V DC

50 mA/ch

1 V or less (load current of 50 mA) or 0.5 V or less (load current of 10 mA)

Sink output: +5.0 V ±0.8 V Source output: -5.0 V ±0.8 V

100 mA

External power supply input None

Isolation Floating from protective ground potential and measurement circuitry

Insulation rating 50 V DC input-to-ground, 33 V AC rms, 46.7 V A peak or less

Example connections

Input circuitry

Instrument

Input

Instrument

Input

Connection to switch

Instrument

Programmable controller

Input

Output

Connection to relay

Instrument

Programmable controller

入入 入入

PNP

Connection to programmable controller

(negative common output)

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Common

ISO_COM 入入入

.com

Connection to programmable controller

(positive common output) [email protected]

Connections (Instrument and Control Device)

Output circuitry

Instrument

Output

50 mA max

30 V max

Connection to relay

Instrument

Output

50 mA max

Negativelogic output

Negative-logic output

Instrument

Output

50 mA max

Programmable controller

Input

Common

Connection to programmable controller

(positive common input)

Instrument

ISO_5V

Instrument

Output

50 mA max

Connection to LED

Instrument

Output

Output

Wired or

Instrument

Output

50 mA max

Programmable controller

Input

Common

Connection to programmable controller

(negative common input)

Instrument

ISO_5V

Output

ISO_COM

Connection to LED (using ISO_5V, NPN setting)

Output

ISO_COM

Connection to LED (using ISO_5V, PNP setting)

11

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Configuring External Input and Output

11.4 Configuring External Input and Output

This section describes how to configure settings related to external input and output.

Settings related to input

Trigger source: EXTERNAL p. 39

Input filter: p. 136

Settings related to output

•“4.3 BIN Measurement (Using Multiple Judgment Standards)” (p. 57)

•“6.3 Contact Check” (p. 71)

•“EOM signal output type” (p. 137)

•“12 Printing” (p. 143)

Input filter

1

The instrument’s filter function provides an effective way to eliminate chatter when connecting a foot switch or other device to the TRIG and PRINT signals.

(Measurement screen) MENU > EXT I/O

2

(Default setting: OFF )

3

Set the response time and touch ENTER .

˄ Increases the value by 1.

˅ Decreases the value by 1.

CLR Deletes all characters.

CANCEL Cancels the setting and returns to the previous screen.

Valid setting range: 50 ms to 500 ms

(Default setting: 50 ms)

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Configuring External Input and Output

TRIG signal operation while the input filter is set to ON

(Chatter)

Measurement processing

Response time During measurement

Hold the input signal until the response time has passed.

EOM signal output type

1

You can choose to either hold the EOM signal’s output until the next trigger is received or output the set pulse.

(Measurement screen) MENU > EXT I/O

2

11

3 (After selecting PULSE )

Set the pulse width and touch ENTER .

Select the output type.

HOLD

PULSE

Holds the EOM signal after measurement is complete

(default setting).

Outputs a pulse with the set width after measurement is complete.

˄

˅

CLR

Increases the value by 1.

Decreases the value by 1.

Deletes all characters.

CANCEL Cancels the setting and returns to the previous screen.

Valid setting range: 1 ms to 100 ms

(Default setting: 5 ms)

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Input Test/Output Test

1

11.5 Input Test/Output Test

In addition to switching output signals on and off manually, you can view input signal status information on the instrument’s screen.

(Measurement screen) MENU > EXT I/O > EXT I/O TEST

2

Touch the signal you wish to output.

Check the connected device to verify that the signal is being output from the instrument.

Input a signal from the connected device.

The corresponding indicator will turn green to indicate the signal being input to the instrument.

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Timing Chart

11.6 Timing Chart

Each signal’s level indicates whether the contact is in the on or off state. When using the current source (PNP) setting, the signal level will be the same as the EXT I/O connector’s voltage level.

When using the current sink (NPN) setting, the HI and LO voltage levels will be reversed.

Timing from the start of measurement to acquisition of judgment results

Explanation of timing chart times

Symbol Description

T

0

Time for which the TRIG signal is on 0.1 ms or greater

T

1

Time for which the TRIG signal is off 1 ms or greater

T

2

T

3

Trigger detection time

Contact check time

T

4

T

5

T

6

T

7

T

8

T

9

T

10

Trigger delay time

Acquisition time (external trigger)

Acquisition time (internal trigger)

Calculation time

Time from EOM signal output to next

TRIG signal input

EOM pulse width (external trigger)

EOM pulse width (internal trigger)

Time

0.1 ms or less

If contact check setting is:

ON: Contact check integration time + 2 ms

OFF: 0 ms

0 to 9999 ms

50 Hz power 60 Hz power

FAST (1 PLC) 27.2 ms

MEDIUM (10 PLC) 245 ms

23.8 ms

205 ms

SLOW (100 PLC) 3.92 sec.

3.37 sec.

Other integration time: Integration time + 5.3 ms

FAST (1 PLC)

50 Hz power

26.9 ms

MEDIUM (10 PLC) 245 ms

SLOW (100 PLC) 3.92 sec.

60 Hz power

23.5 ms

205 ms

3.37 sec.

Other integration time: Integration time + 5 ms

0.1 ms

1 ms or greater

1 ms to 100 ms

50 Hz power frequency

T

I

= 0.02 PLC to 1 PLC: 32.8 ms

T

I

T

I

= 10 PLC, 100 PLC: 164 ms

= ms setting: INT{(

T

I

+39)×0.025}×32.8

60 Hz power frequency

T

I

= 0.02 PLC to 1 PLC: 29.4 ms

T

I

T

I

= 10 PLC, 100 PLC: 147 ms

= ms setting: INT{(

T

I

+39)×0.025}×29.4

T

I

: Integration time

INT (value): Integer portion of value after rounding down

11

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Timing Chart

(1) When the trigger source is set to EXTERNAL and EOM output is set to HOLD

Inputting the TRIG signal will cause the EOM signal to turn off and measurement to start. When measurement completes, the EOM signal will turn on and remain on until the next TRIG signal is input.

See “11 EOM signal output type” (p. 137).

TRIG

Measurement processing

ON

T0

T2 T3

Contact check

T4 T5

OFF

T1

T7

Delay Measurement Calculation

EOM OFF ON

T8

OFF

HI, IN, LO, ERR

OB, BIN0 – BIN9

OFF ON/OFF OFF

•The TRIG signal is ignored while the EOM signal is off (i.e., while measurement is in progress).

•After changing settings, for example to switch ranges, allow processing time (100 ms) to elapse before inputting the TRIG signal.

•The instrument will output the EOM signal as soon as the judgment result (HI, IN, LO, ERR, or

BIN) has been finalized. If the connected external device’s input circuitry is characterized by a slow response, it may take time for the judgment result to be captured after the EOM signal is detected as having turned on.

See “11 Measurement process (starting measurement from an external device and loading judgment results)” (p. 142).

(2) When the trigger source is set to EXTERNAL and EOM output is set to PULSE

The EOM signal will turn on when measurement completes. Once the EOM output pulse width (T9) has elapsed, the EOM signal will return to the off state. Inputting the TRIG signal while the EOM signal is on will cause the EOM signal to turn off and measurement to start.

See “EOM signal output type” (p. 137).

TRIG

Measurement processing

ON

T0

T2 T3

Contact check

T4 T5

OFF

T1

T7

Delay Measurement Calculation

EOM OFF

HI, IN, LO, ERR

OB, BIN0 – BIN9

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T8

ON

T9

OFF

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Timing Chart

(3) When the trigger source is set to INTERNAL while the instrument is in the RUN state

The EOM signal will generate pulse output (with an output time measured in milliseconds). Once the HI, IN, LO, ERR, OB, or BIN0 to BIN9 signal turns on, it will remain on when measurement starts and will continue in that state until the next measurement completes.

11

T3 T4 T6 T7

Measurement processing

Contact check

Delay Measurement Calculation

Selfcalibration

EOM OFF ON

T10

OFF

HI, IN, LO, ERR

OB, BIN0 – BIN9

Measurement speed can be maximized with the following settings:

Setting

Contact check ( CONTACT CHECK )

Trigger delay ( DELAY )

OFF

0 ms

For more information

“6.3 Contact Check” (p. 71)

“Trigger measurement (measurement with userspecified timing)” (p. 38)

In this case, t10 = 0 ms.

Panel load timing

It is necessary to hold the LOAD signal for approximately 10 ms. The TRIG signal will be ignored while the panel load function is being completed.

LOAD0 to LOAD4 Panel 1 Panel 2

Min. 10 ms

Max. 70 ms

(When switching to the 100 mV range, max. 700 ms)

State Panel 1 Load processing Panel 2

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Timing Chart

Output signal status when the instrument is turned on

Once the display switches from the Startup screen to the Measurement screen after the instrument is turned on, the EOM signal will turn on. If EOM output is set to PULSE , the EOM signal will remain off.

The instrument’s power is turned on.

Instrument operation Startup screen Measurement screen

EOM OFF ON OFF ON

HI, IN, LO, ERR

OB, BIN0 – BIN9

OFF ON/OFF

TRIG ON

The above chart depicts instrument operation when the trigger source is set to EXTERNAL and EOM output is set to HOLD .

Measurement process (starting measurement from an external device and loading judgment results)

This section describes the measurement process from the start of measurement to the acquisition of judgment results when inputting the trigger from an external device.

The instrument will output the EOM signal immediately once the judgment result (HI, IN, LO,

ERR, or BIN) is finalized. If the connected external device’s input circuitry is characterized by a slow response, it may take time for the judgment result to be captured after the EOM ON signal is detected.

Instrument Connected external device

Measurement starts

Measurement starts

Judgment results off

Measurement in progress

Measurement complete

TRIG

EOM

EOM wait

(for level detection, after 0.5 ms)

Measurement complete received

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HI, IN, LO, ERR, BIN www.

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12 Printing

12

Printing

Printing process

(1) Configure the printer. (p. 144)

(2) Connect the printer to the instrument. (p. 146)

(3) Configure the instrument. (p. 146)

(4) Print (p. 147)

• Measured values and judgment results

• List of measurement conditions and settings

• Statistical calculation results

You will need:

9442 Printer

9443-01 AC Adapter (for Japan) or 9443-02 AC Adapter (for countries other than Japan)

1196 Recording Paper

9444 Connection Cable

•Use the optional 1196 Recording Paper (thermal paper, 10 rolls) or an equivalent product as printer paper.

•For more information about how to use the printer, see the instruction manual that came with it.

12

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Printer Settings

1

12.1 Printer Settings

Turn off the 9442 Printer.

2

Turn on the 9442 while holding down the

[ON LINE] switch and release the switch once the printer starts printing.

The current settings will be printed. The following message will be printed after the settings:

Continue? :Push ‘On-line SW’

Write? :Push ‘Paper feed SW’

3 Press the [ON LINE] switch.

The printer will print the message “

Dip SW-1

” and enter the software DIP SW1 setting state.

4 Set DIP SW1 switch numbers 1 through

8 to on or off as indicated in the table below.

Example: Press the [FEED] switch to set the input method setting to

SERIAL.

The input content will be printed each time you press the switch so that you can check the input results after each press. If you mistakenly enter the wrong setting, go back and repeat the process from Step 1.

Once you have finished setting switch No. 8, the following message will be printed again:

Continue? :Push ‘On-line SW’

Write? :Push ‘Paper feed SW’

Switch no.

6

7

4

5

1

2

3

8

Function

Input method setting

Print speed

Auto-loading

CR function

Setting command

Print density (Set to 100%.)

Set the parameters to the values indicated with check marks.

ON

(Press the [ON LINE] switch.) (Press the

OFF

[FEED] switch.)

Parallel Serial 

Fast 

Enable 

Slow

Disable

Carriage return

Enable 

−

ON 

ON 

Line feed

Disable

OFF

−

−





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Printer Settings

5

Set the DIP SW2 and DIP SW3 switches as described in the table below (see

Steps 3 and 4).

Once you have finished setting DIP SW3 switch No. 8, the following message will be printed again:

Continue? :Push ‘On-line SW’

Write? :Push ‘Paper feed SW’

6

Press the [ON LINE] switch or the [FEED] switch.

This completes the configuration process, causing the following message to be printed:

Dip SW setting complete!!

DIP SW2 settings

Switch no.

Function

Set the parameters to the values indicated with check marks.

ON

(Press [ON LINE] switch.) (Press

OFF

[FEED] switch.)

Normal print (40-row)  Condensed print (80-row) 1

2

7

8

5

6

3

4

Print mode*

User-defined character backup

Character type

Zero character

International characters

Print density (Set to 100%.)

Enable

0 

ON 

ON 

ON 

ON 



Normal characters 

Disable

Special characters

Ø

−

−

−

−

* If you have configured time and date output as described in “9.3 Data Output Settings” (p. 113), set to condensed print (80-row).

12

DIP SW3 settings

Switch no.

4

5

6

7

8

1

2

3

Function

No. of data bits

Parity

Parity setting

Control flow

Baud rate

(Set to 9600 bps.)

Set the parameters to the values indicated with check marks.

ON

(Press [ON LINE] switch.) (Press

OFF

[FEED] switch.)

8  7

None 

Odd 

Yes

Even

HW BUSY

−

ON 

ON 

ON 

XON/XOFF

OFF

−

−

−





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Connecting the Printer to the Instrument

12.2 Connecting the Printer to the Instrument

Before connecting, read “Before connecting a printer” (p. 12) carefully.

Connection method

Power

1 OFF 3 ON

Main power switch

Rear

2 connections

1

9442 Printer

Power

OFF 4 ON

1

12.3 Configuring the Instrument

(Measurement screen) MENU > I/F

2

9444 Connection Cable

3

Select the same communications speed as the printer.

(Default setting: 9600 [bps])

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Printing

12.4 Printing

Before printing, check the instrument’s settings (p. 146) to be sure they are correct.

Print parameters

The parameters that are set to be output as described in “9.3 Data Output Settings” (p. 113) will be printed. (Default setting: V [voltage value] only)

If the comparator function or BIN function is set to ON , judgment results will also be printed.

12

If you have configured the instrument to output the time and date, set the “DIP SW2 settings”

(p. 145) print mode setting to condensed print (80-row).

Output format

Printed data will conform to the format set as described in “7.8 Setting Output Formats” (p. 92).

Printing from the instrument’s touch panel

Touching PRINT will cause the data to be printed.

To print measured values used in statistical calculations

See “Displaying, clearing, and printing statistical calculation results” (p. 85).

Printing using external control

Turning the PRINT signal on with the instrument (by shorting the EXT I/O connector’s ISO_COM pin and PRINT pin) enables printing of measured values and judgment results.

To print data as desired Turn on the PRINT signal when you wish to print data.

To print after the completion of measurement using the trigger function

Short the EOM signal with the PRINT signal before starting measurement. Then input the trigger while the trigger source is set to

EXTERNAL . (p. 38)

To prevent print signal chatter

See “Input filter” (p. 136).

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Printing

Print examples

„ Voltage measured values, temperature measured values

• Voltage measured values

-1098.3825mV

- 0.05536mV

+ 199.6209mV

+ 395.2712mV

+ 998.5098mV

+1198.2109mV

+ 1.497850 V

NoCntct

+OvrRng

-OvrRng

• Voltage measured values, temperature measured values

- 0.04428mV ,+26.3C

+ 299.4894mV ,+26.3C

+1198.2750mV ,+26.3C

+ 1.497878 V ,+26.4C

NoCntct ,+26.4C

+OvrRng ,+26.4C

-OvrRng ,+26.4C

+ 898.7732mV ,-OvrRng

+ 898.7623mV ,+OvrRng

• Times, dates, and temperature measured values

2015/01/11 21:11:16 - 1.497762 V ,+26.4C

2015/01/11 21:11:22 - 998.6050mV ,+26.4C

2015/01/11 21:11:25 - 499.4504mV ,+26.4C

2015/01/11 21:11:28 - 0.07352mV ,+26.4C

2015/01/11 21:11:30 + 499.1823mV ,+26.4C

2015/01/11 21:11:33 + 998.5319mV ,+26.4C

2015/01/11 21:11:35 + 1.497883 V ,+26.4C

2015/01/11 21:12:25 NoCntct ,+26.4C

2015/01/11 21:12:39 +OvrRng ,+26.4C

2015/01/11 21:12:48 -OvrRng ,+26.4C

• Voltage measured values and temperature measured values

(comparator on)

- 99.8674mV LO,+26.6C

+ 399.3989mV IN,+26.6C

+ 890.4667mV IN,+26.6C

+1098.4419mV HI,+26.6C

+OvrRng HI,+26.6C

• Times, dates, voltage measured values, and temperature measured values (comparator on)

2015/01/11 21:27:08 - 99.8460mV LO,+26.6C

2015/01/11 21:27:12 + 399.4024mV IN,+26.6C

2015/01/11 21:27:14 + 898.7182mV IN,+26.6C

2015/01/11 21:27:20 +1098.4661mV HI,+26.6C

2015/01/11 21:27:24 +OvrRng HI,+26.6C

2015/01/11 21:27:27 NoCntct ERR,+26.6C

• Voltage measured values and temperature measured values (BIN on)

- 99.8320mV OB,+26.8C

+ 99.8880mV 0 ,+26.9C

+ 199.7232mV 1 ,+26.8C

+ 399.4437mV 3 ,+26.8C

+ 599.1160mV 5 ,+26.9C

+ 798.8131mV 7 ,+26.9C

+ 998.6457mV 9 ,+26.9C

+1198.3677mV OB,+26.9C

+OvrRng OB,+26.9C

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Printing

„ List of measurement conditions and settings

MODEL DM7276-03

FIRMWARE V1.00

PRODUCT NO. 1234567890

MEASUREMENT VOLT/C

RANGE 1000mV

SPEED MEDIUM

TRIGGER INTERNAL

CONTACT CHECK ON

AUTO HOLD OFF

INPUT Z 10MOhm

SMOOTHING OFF

NULL OFF

TC OFF

SCALING OFF

COMP ON

HI +1000.000mV

LO + 0.000mV

BIN OFF

DIGITS 7.5

„ Statistical calculation results

• With comparator on

DATE - TIME 2015/01/11 23:32:08

NUM :117

VAL :100

Max :+1198.4368mV

No = 64

Min :-299.46880mV

No = 32

P-P :+1497.9056mV

Avg :+437.81887mV

Sn :+367.66608mV

Sn-1:+369.51831mV

Cp :0.45

Cpk :0.39

HI :7

IN :78

LO :15

OVR :12

ERR :5

• With BIN on

DATE - TIME 2015/01/11 23:34:16

NUM :61

VAL :55

Max :+1198.0933mV

No = 43

Min :-194.31234mV

No = 17

P-P :+1392.4056mV

Avg :+520.12336mV

Sn :+386.59372mV

Sn-1:+390.15687mV

BIN0 +100.0000mV - + 0.000mV 5

BIN1 +200.0000mV - +100.0000mV 3

BIN2 +300.0000mV - +200.0000mV 4

BIN3 +400.0000mV - +300.0000mV 3

BIN4 +500.0000mV - +400.0000mV 5

BIN5 +600.0000mV - +500.0000mV 1

BIN6 +700.0000mV - +600.0000mV 4

BIN7 +800.0000mV - +700.0000mV 12

BIN8 +900.0000mV - +800.0000mV 3

BIN9 +1000.000mV - +900.0000mV 3

OB 7

12

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13 Specifications

13

Specifications

Scope: These specifications apply to the following products.

DM7275-01, DM7276-01 Precision DC Voltmeter

DM7275-02, DM7276-02 Precision DC Voltmeter (with GP-IB interface)

DM7275-03, DM7276-03 Precision DC Voltmeter (with RS-232C interface)

The information followed by “(-02 model)” is specific to the model DM7275-02 and DM7276-02 and the information followed by “(-03 model)” is specific to the model DM7275-03 and DM7276-03.

13.1 General Specifications

Operating environment

Operating temperature and humidity

Storage temperature and humidity

Standards

Indoors, Pollution Degree 2, altitude up to 2000 m (6562 ft.)

0°C to 40°C (32°F to 104°F), 80% RH or less (no condensation)

Dielectric strength

Power supply

Backup battery service life

Display

Keys

Buzzer

External interfaces

Dimensions

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-10°C to 50°C (14°F to 122°F), 80% RH (no condensation)

Safety:

EN61010

EMC:

EN61326 Class A, EN61000-3-2, EN61000-3-3

Between [power supply L and N terminals] and [protective ground]:

1500 V AC, 1 min. cutoff current of 10 mA

Between [HIGH and LOW terminals] and [interface]:

3600 V AC, 1 min. cutoff current of 10 mA

Between [HIGH terminal and LOW terminal] and [protective ground]:

2210 V AC, 1 min. cutoff current of 10 mA

Rated supply voltage:

100 V to 240 V AC commercial power (with fluctuations of ±10% relative to rated supply voltage) (predicted transient overvoltage: 2500 V)

Rated power supply frequency:

50 Hz/60 Hz

Maximum rated power:

30 VA

Approx. 10 years (reference value at 23°C)

Color 4.3” TFT with resistive membrane touch panel

V/°C, AUTO,  ,  , SPEED, NULL, RUN/STOP, TRIG

At key entry and in response to comparator judgment results

Interfaces:

Standard interfaces: LAN, USB host, USB device, EXT I/O

Specified at time of order: GP-IB (-02 model), RS-232C (-03 model)

Settings:

LAN / USB host (flash drive) / USB device (COM/Keyboard) / GP-IB (-02 model)

/ RS-232C (-03 model) / Printer (-03 model)

(The USB host function can be used as long as the USB device setting is not being used.)

Default settings:

USB host, LAN

Approx. 215W × 88H × 232D mm (8.46”W × 3.46”H × 9.13”D) (excluding protruding parts) www.

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Measurement Specifications

Mass

Product warranty

Accessories

Options

DM7275-01, DM7276-01:

Approx. 2.3 kg (81.1 oz.)

DM7275-02, DM7275-03, DM7276-02, DM7276-03:

Approx. 2.4 kg (84.7 oz.)

1 year

See “Accessories” (p. 2).

See “Options (Sold Separately)” (p. 3).

13.2 Measurement Specifications

Basic specifications

Measurement parameters

Measurement ranges

Maximum input voltage

Maximum rated input-toground voltage

Measurement methods

Measurement terminals

DC voltage, temperature

DC voltage:

±120.000 00 mV (100 mV range) to ±1010.000 0 V (1000 V range)

5 ranges

Temperature:

-10.0°C to 60.0°C

Voltage measurement terminals

1000 V DC (between HIGH and LOW terminals), 10 voltages in excess of 800 V.

5 VHz AC, 1500 Vpk

However, measurement target must be isolated from ground when measuring

Voltage measurement terminals

800 V (predicted transient overvoltage: 3000 V between input and ground)

Measurement category: II 300 V (predicted transient overvoltage: 2500 V between input and ground)

Voltage measurement:

Σ∆ conversion method

Temperature measurement:

Temperature Sensor Z2001

Voltage measurement terminals:

Banana-style receptacles, at least 99.9% copper

Temperature measurement terminal

φ 3.5 compact jack

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Measurement Specifications

Noise rejection ratio

(Voltage measurement)

Input bias current (25°C)

(Voltage measurement)

Common-mode current

Measurement times

Separate table

Parameter

T

0

T

T

T

1

2

3

Description

Trigger signal on-time

Trigger signal off-time

Trigger detection time

Contact check time

T

4

T

5

CMRR:

Signal source resistance: 1 k Ω

DC CMRR: 140 dB or greater

AC CMRR: 100 dB or greater (±1% of supplied power supply frequency, integration time of n × PLC setting)

(n: integer value; PLC: power line cycle)

NMRR:

Integration time setting

100PLC

10PLC

Power supply frequency setting

±0.1%

120 dB or greater

120 dB or greater

Power supply frequency setting

±1%

100 dB or greater

100 dB or greater

1PLC

Less than 1PLC

(PLC: power line cycle)

100 mV range, 1 V range:

Max. 30 pA

10 V range:

Max. 50 pA

100 V range, 1000 V range:

Max. 10 pA

55 dB or greater

0 dB

35 dB or greater

0 dB

10 nA rms (reference value)

Voltage measurement:

RUN state: Single measurement time of

T

3

+

T

4

+

T

(tolerance of ±10% ±0.2 ms)

Other than RUN state: From trigger input until EOM turns on:

T

2

6

+

T

+

T

3

7

+

T

10

+

T

4

+

T

5

+

T

7

(tolerance of ±10% ±0.2 ms)

For an explanation of

T

0

to

T

10

, see “Separate table” (p. 153).

Temperature measurement:

200 ±20 ms (measured value update timing depends on the voltage measurement time)

Delay time

Acquision time (other than RUN state)

Time

0.1 ms or greater

1 ms or greater

0.1 ms or less

•Off setting: 0 ms

•On setting: Contact check integration time + 2 ms

0 ms to 9999 ms

FAST (1PLC)

50 Hz power 60 Hz power

27.2 ms

MEDIUM (10PLC) 245 ms

23.8 ms

205 ms

SLOW (100PLC) 3.92 s 3.37 s

Integration time other than above: Integration time + 5.3 ms

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Measurement Specifications

Parameter

T

6

Description

Acquision time (RUN state)

T

7

T

8

T

9

T

10

Calculation time

From EOM signal output to TRIG signal input

EOM pulse width (other than RUN state)

EOM pulse width (RUN state)

Time

50 Hz power 60 Hz power

FAST (1PLC) 26.9 ms

MEDIUM (10PLC) 245 ms

23.5 ms

205 ms

SLOW (100PLC) 3.92 s 3.37 s

Integration time other than above: Integration time + 5 ms

0.1 ms

1 ms or greater

1 ms to 100 ms

50 Hz power frequency

T

I

=0.02PLC to 1PLC: 32.8 ms

T

I

T

I

=10PLC, 100PLC: 164 ms

=ms setting INT{(

T

I

+39)×0.025}×32.8

60 Hz power frequency

T

I

T

I

=0.02PLC to 1PLC: 29.4 ms

=10PLC, 100PLC: 147 ms

T

I

=ms setting INT{(

T

I

+39)×0.025}×29.4

T

I

: Integration time

INT (value): Rounds off the decimal portion of the value.

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Measurement Specifications

Accuracy specifications

Conditions of guaranteed accuracy

Voltage measurement accuracy

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Guaranteed accuracy period: 1 year

Temperature and humidity for guaranteed accuracy:

23°C ±5°C (73°F ±9°F), 80% RH or less

Warm-up time: 1 hr.

Measurement cable

Low thermal electromotive force cable (FLUKE 5440A-7005)

DM7275-01, DM7275-02, DM7275-03:

See “Separate table 1 (DM7275)” (p. 156).

DM7276-01, DM7276-02, DM7276-03:

See “Separate table 2 (DM7276)” (p. 156).

Additional errors:

•Temperature coefficient

From 0°C to 18°C and from 28°C to 40°C, add the following value per 1°C of temperature:

100 mV to 10 V range: ±0.05 × measurement accuracy/°C

100 V, 1000 V range: ±0.1 × measurement accuracy/°C

•Voltage coefficient error

Add the following value to the rdg. error component if the voltage display value

Vin exceeds ±300 V:

DM7275: 0.0010% × (Vin / 1000) 2

DM7276: 0.0005% × (Vin / 1000) 2

•Noise error (excluding effects of burst noise)

Integration time

10 PLC ≤

T

1 PLC ≤

T

0.02 PLC ≤

I

I

< 10 PLC

0.2 PLC ≤

T

I

< 1 PLC

T

I

< 0.2 PLC

T

I

Additional error

None

0.0001% of range ± 0.5 µV

0.0003% of range ± 1 µV

0.0010% of range ± 2 µV

•Temperature compensation error

When using temperature compensation, add the following value to the resistance measurement accuracy’s rdg. error component:

1 (

α

T

α

T

+ ∆ −

0

)

×

100[%]

T

0

: Reference temperature [°C]

T

: Current ambient temperature [°C]

∆

T

: Temperature measurement accuracy α : Temperature coefficient [1/°C]

•Measurement cable error

Temperature difference of no greater than 1°C between the instrument and the measurement cable/measurement target

Add individual error components if connecting cables in series.

L9207-10 Test Lead

L4933 Contact Pin Set

L4932 Test Pin Set

L4934 Small Alligator Clip Set

L4935 Alligator Clip Set

9243 Grabber Clip

L4936 Bus Bar Clip Set

L4931 Extension Cable Set

L4930 Connection Cable Set

10 µV

7 µV

5 µV

3 µV

2 µV

•Effects of radiative radio-frequency magnetic field: 3% of range at 10 V/m

•Effects of conductive radio-frequency magnetic field: 3% of range at 3 V

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Measurement Specifications

Temperature measurement accuracy

Linearity:

Linearity is already included in the voltage measurement accuracy and need not be added again.

| Vin| ≤ 300 V: 0.0001% rdg. + 0.0001% f.s.

|Vin| > 300 V: 0.0001% rdg. + 0.0001% f.s. + voltage coefficient error

Accuracy specifications

Instrument accuracy -10.0°C to 60.0°C

Combined accuracy with

Z2001

-10.0°C to 4.9°C

5.0°C to 35.0°C

35.1°C to 50.0°C

50.1°C to 60.0°C

Accuracy

±0.2°C

±0.7°C

±0.5°C

±0.7°C

±0.9°C

Separate table 1 (DM7275)

Range Maximum display*

100 mV

1000 mV

10 V

100 V

1000 V

±120.000 00 mV

±1200.000 0 mV

±12.000 000 V

±120.000 00 V

±1010.000 0 V

*Maximum input voltage: 1000 V peak

Maximum resolution

Measurement accuracy

10 nV

100 nV

±0.0030% rdg. ±2 µV

±0.0020% rdg. ±3 µV

1 µV ±0.0020% rdg. ±12 µV

10 µV ±0.0030% rdg. ±0.8 mV

100 µV ±0.0035% rdg. ±2 mV

Separate table 2 (DM7276)

Range Maximum display*

100 mV

1000 mV

10 V

100 V

1000 V

±120.000 00 mV

±1200.000 0 mV

±12.000 000 V

±120.000 00 V

±1010.000 0 V

*Maximum input voltage: 1000 V peak

Maximum resolution

10 nV

Measurement accuracy

±0.0015% rdg. ±2 µV

100 nV

1 µV

±0.0011% rdg. ±3 µV

±0.0009% rdg. ±12 µV

10 µV ±0.0020% rdg. ±0.8 mV

100 µV ±0.0025% rdg. ±2 mV

Input resistance

AUTO 10 M Ω

>10 G Ω 10 M Ω ±1%

>10 G

>10 G

10 M

Ω

Ω

Ω ±1%

10 M Ω ±1%

10 M Ω ±1%

10 M Ω ±1%

10 M Ω ±1% 10 M Ω ±1%

Input resistance

AUTO 10 M Ω

>10 G Ω 10 M Ω ±1%

>10 G

>10 G

10 M

10 M

Ω

Ω

Ω ±1%

Ω ±1%

10 M Ω ±1%

10 M Ω ±1%

10 M Ω ±1%

10 M Ω ±1%

Example calculation of voltage measurement accuracy

Instrument: DM7276

Display value: 500 V

Measurement conditions: 1000 V range, integration time of 1 PLC, L9207-10 Test Lead

From Separate Table 2 (1000 V range) 0.0025% × 500 V + 2 mV = 14.5 mV

Voltmeter coefficient error (see previous page) 0.0005% × (500 V / 1000 V) 2 × 500 V = 0.625 mV

Noise error (see previous page) 0.0001% × 1000 V + 0.5 µ V = 1.0005 mV

Measurement cable error (see previous page) 10 µ V

Total error 14.5 mV + 0.625 mV + 1.0005 mV + 10 µ V = 16.1355 mV

After truncating digits that exceed the instrument’s display digits, 16.1 mV

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Functional Specifications

13.3 Functional Specifications

Display measured values Settings

Default setting

Range switching Settings

Default setting

Input resistance switching

Settings

Display digit selection

Default setting

Settings

Integration time

Default setting

Setting

Smoothing function

NULL

Preset integration times

Default setting

Operation

Settings

Triggers Continuous measurement

Default settings

Settings

Default setting

Trigger source Setting

Number of measurements

Default setting

Setting

Delay

Default setting

Settings

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Default settings

Calculation formula

Settings

V, V°C

V

AUTO, MANUAL

AUTO

10 M Ω , AUTO

(100 V range and 1000 V range: fixed at 10 M Ω )

10 M Ω

7 1/2 digits, 6 1/2 digits, 5 1/2 digits, 4 1/2 digits, 3 1/2 digits

7 1/2 digits

Integration time unit: PLC, ms

PLC setting range: 0.02, 0.2, 1, 10, 100 ms setting range: 1 ms to 9999 ms

FAST: 1 PLC

MEDIUM: 10 PLC

SLOW: 100 PLC

MEDIUM (10 PLC)

Displays the moving average of measured values in the RUN state.

13

V smooth

=

1

A n A 1

∑

V k

V smooth

: Average value

A

: Number of averaging iterations n

: Number of measurements

V k

: k th measured value

Smoothing: ON, OFF

Number of averaging iterations: 2 to 100

Smoothing: OFF; number of averaging iterations: 4

RUN, STOP

When set to STOP, single trigger from [TRIG] key

RUN

INTERNAL, EXTERNAL

When using the EXTERNAL setting, TRIG signal input and

[TRIG] key input are each treated as one trigger event.

INTERNAL

1 per trigger to 5000 per trigger

(Disabled when in the RUN state)

1 per trigger

Delay: PRESET, MANUAL

PRESET time: 0 ms

MANUAL time: 0 ms to 9999 ms

Delay: PRESET; MANUAL time: 0 ms

V

M

= V - V

N

V

M

: Measured value after NULL calculation

V

: Voltage measured value

V

N

: NULL value

NULL: ON, OFF

NULL value: -1000 V to +1000 V (non-range-dependent value, acquired from current measured value or set as desired) [email protected]

157

Functional Specifications

Temperature compensation

Scaling

Over range indication

Contact check

Self-calibration

Calculation formulas

Settings

Default settings

V

T0

= V

M

/ (1 + α (

T T

0

))

V

T0

V

M

: Measured value after temperature compensation

: Voltage measured value after NULL calculation

T

: Temperature

α : Temperature coefficient [ppm/°C]

T

0

: Reference temperature

Temperature compensation: ON, OFF

Temperature coefficient: -1000 ppm/°C to +1000 ppm/°C

Reference temperature: -10.0°C to 60.0°C

Temperature compensation: OFF

Temperature coefficient: 0 [ppm/°C]

Reference temperature: 20°C

Calculation formulas

Settings

Default settings

Operation

V

V

S

S

= A × V

T0

+ B

: Value after scaling

V

T0

: Value after NULL calculation and temperature compensation

A

: Gain coefficient

B

: Offset

Scaling: ON, OFF

A

: 0 to ±1.000 000 × 10 9

B

: 0 to ±1.000 000 × 10 9

Unit: V, none, 3 characters as desired (not including SI prefixes)

SI prefixes are automatically adjusted so that the integer portion of (

A

× maximum display before scaling

+ | B |

) is from

2 to 4 digits long.

Example: For 10 V range,

A

= 1.5 × 10

× 12 + 0.5 × 10 3

5 ,

B

= -0.5 × 10 3 ,

1.5 × 10 5 = 1800 500

After adjustment so that the integer portion is from

2 to 4 digits long: 1800.500k → SI prefix is “k.”

Scaling: OFF

A

: 1

B

: 0

Unit: V

An over range is indicated under the following conditions:

•When the measurement range is exceeded

•When A/D converter input during measurement exceeds the input range

•When the temperature compensation, NULL calculation or scaling results exceed the display range

Operation •When the capacitance between HIGH and LOW terminals is less than the threshold, no detection is made, and no measured value is displayed.

•On the contact check settings screen, the capacitance between the HIGH and LOW terminals can be monitored

(monitor range: 0 nF to 60 nF [reference values]).

•This function cannot be used in the 100 V or 1000 V range.

Detection signal

Settings

10 mV rms (reference value)

Contact check: ON, OFF

Threshold: 0.5 nF to 50 nF (reference values)

Contact check integration time: 1 ms to 100 ms

Default settings Contact check: OFF

Threshold: 1 nF

Contact check integration time: 10 ms

Self-calibration corrects for fluctuations in the measurement circuit. It cannot be disabled.

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Comparator

BIN

Operation

Settings

Default settings

Judgment

Settings

Default settings

Absolute value judgment Operation

Auto hold

Settings

Default settings

Operation

Settings

Default settings

Functional Specifications

Judgment:

HIGH judgment: Measured value > upper limit value

IN judgment: Upper limit value ≥ measured value ≥ lower limit value

LOW judgment: Lower limit value > measured value

Judgment delay:

Outputs judgment results once the same judgment has been made the set number of times. This setting is valid only when auto-hold operation is disabled and the instrument is in the

RUN state.

Comparator: ON, OFF (BIN: forced OFF)

Upper limit value and lower limit value: -1000 V to +1000 V

(when the scaling function is set to ON, -1000 GV to 1000

GV), ON, OFF

(IN judgment when both the upper and lower limit values are set to OFF.)

Number of setting digits: 7

Judgment delay: ON, OFF

Judgment delay count: 2 to 10

Judgment tone: OFF, TYPE1, TYPE2, TYPE3

Number of beeps: 1 to 5, continuous

Comparator: OFF

Upper limit value and lower limit value: 0 V, ON

Judgment delay: OFF, 2

HIGH judgment tone: OFF

IN judgment tone: OFF

LOW judgment tone: OFF

Number of beeps: 2

BIN nos. 0 to 9 (Out of BINs)

IN judgment: Upper limit value ≥ measured value ≥ lower limit value

OUT judgment: Lower limit value > measured value, measured value > upper limit value

BIN: ON, OFF (COMP: forced OFF)

Upper limit value and lower limit value: -1000 V to +1000 V

(when the scaling function is set to ON, -1000 GV to +1000

GV)

Number of setting digits: 7

BIN: OFF

Upper limit value and lower limit value: 0 V

Performs comparator judgment or BIN judgment while ignoring the sign of the measured value.

Absolute value judgment: ON, OFF

Absolute value judgment: OFF

Automatically holds the measured value when it falls within the hold range.

Measurement settings are fixed as follows:

Integration time: MEDIUM; input resistance: 10 M Ω

Continuous measurement: RUN; contact check: ON

Auto hold: ON, OFF

Hold range: 0.001% of the range to 1.000% of the range

Auto hold: OFF

Hold range: 0.1% of range

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Functional Specifications

Panel save and panel load operation

Number of panels

Saved information

30

Time and date of save, measured value display, measurement range selection, input resistance selection, number of display digits, integration time, smoothing, trigger setting (measurement count, delay), NULL, temperature compensation, scaling, contact check, comparator, BIN, absolute value judgment, auto hold, label display, sub-display

User-defined, 10 characters Panel name

Label display

Setting

Default setting

Settings

Default settings

NULL value save: ON, OFF

NULL value save: ON

Label display: ON, OFF

Label: User-defined, 8 characters

Label display: OFF

Label: none

Measured value memory Display items

Memory contents

Sub-display

5000

Elapsed time, voltage, temperature

Number of data points Statistics, trend, bar graph

Default setting No sub-display

Data output

Statistics

Trend

Bar graph

Operation

Settings

Default settings

Number of data points:

Statistics calculations: 1,000,000 data points (automatic stop)

Description of statistics:

Maximum value (index number), minimum value (index number), maximum value - minimum value, average value, sample standard deviation, population standard deviation, total number of data points, number of valid data points

•When the comparator is on

Count for each judgment result, process capacity index

•When BIN is on

Count for each BIN number, “Out of BINs” count

Displays data in the instrument’s measured value memory as a trend graph.

Displays measured values as a bar graph.

•Outputs data to the USB COM, USB keyboard, RS-232C, printer, or LAN interface.

RUN state: Inputting the TRIG signal or pressing the [TRIG] key causes the current measured value to be output.

Other than RUN state: Inputting the TRIG signal or pressing the [TRIG] key causes the measured value to be output once measurement completes.

Auto-hold setting: The measured value is output while being held.

•Data cannot be output to the GP-IB interface.

Automatic data output: ON, OFF

Output at detection: ALL, HI, IN, LO, HL

Data output format

Measurement data: V, V°C

Time and date: ON, OFF

Automatic data output: OFF

Output at detection: ALL

Measurement data: V

Time and date: OFF

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Functional Specifications

Key lock

Backlight

Clock

Operation

Setting

Default setting

When set from the front panel, all operations other than the cancellation key are disabled.

Operation of the front panel is disabled while the KEY_LOCK signal is being input and while a valid LOAD signal is being input.

The [TRIG] key functions while the key lock is engaged.

ON, OFF

OFF

Setting

Default setting

Brightness: 0% to 100% (in 10% steps)

Brightness: 80%

Auto calendar, automatic detection of leap years, 24-hour format

Clock accuracy ±4 min/month

Supplied power supply frequency

Output format

Default state

Settings

Default setting

Setting

Default settings

00:00, January 1, 2015

50 Hz, 60 Hz, AUTO

AUTO

Date: YYYYMMDD, DDMMYYYY, MMDDYYYY

Date delimiter: Slash, hyphen, period

Decimal point: Period, comma

Data delimiter: Comma, semicolon, tab, space

(Setting applies to screen display, USB flash drive output,

USB keyboard output, and printer output.)

Date: YYYYMMDD

Date delimiter: Slash

Decimal point: Period

Data delimiter: Comma

Self-test

Buzzer

ROM test, RAM test

Settings

Default settings

Default setting

Volume: OFF, SMALL, MEDIUM, LARGE

Key tone: ON, OFF

Auto-hold tone: ON, OFF

Error tone: ON, OFF

Volume: MEDIUM

Key tone: ON

Auto-hold tone: ON

Error tone: ON

Touch panel adjustment Adjusts for touch panel misalignment by setting the location of the top left and bottom right corners of the touch panel.

The settings can be reverted to their factory defaults.

Displayed information Displays instrument settings.

Measurement information

Communications monitor

Operation •Displays the data being sent and received with the LAN,

USB, RS-232C, and GP-IB interface.

•Saves sent and received commands on the USB flash drive

(log function).

Setting Communications monitor: ON, OFF

Log: ON, OFF

Communications monitor: OFF

Log: OFF

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Functional Specifications

Measured value format

SCPI ID

Remote

Startup settings

Reset

Operation

Setting

Default setting

Operation

Setting

Changes the format of responses to measured value queries.

RANGE FIX setting: Exponential part fixed based on the measurement range

FLOAT setting: Floating point

(When using the FLOAT setting, the instrument automatically transitions to the STOP state when transitioning to the

REMOTE state.)

Measured value format: RANGE FIX, FLOAT

Measured value format: RANGE FIX

Sets the response string for the

SCPI ID: Up to 127 characters

*IDN?

query.

Default setting Blank (HIOKI, model name, serial number, software version)

When communicating with the LAN, USB, RS-232C, or GP-IB interface, places the instrument in the remote state and disables touch panel and key operations.

The [TRIG] key functions except while the instrument is in the RUN state.

The remote state can be canceled as follows:

•By pressing the LOCAL key on the touch panel

•By cycling the instrument’s power

•By sending the :

SYSTem:LOCal

command with the LAN, USB, RS-232C, or GP-IB interface

•By sending the

GTL

command with the GP-IB interface

Operation

Settings

Selects which settings to apply when the instrument is turned on.

Startup setting: LAST, FACTORY, PANEL

Panel: No. 01 to No. 30

Default settings

Reset

System reset

Startup setting: LAST

Panel: No. 01

Reverts all settings other than panel data and interface settings to their factory defaults.

(Operation is the same as for the

*RST

,

:SYSTem:PRESet

,

:STATus:PRESet

commands.)

Reverts all settings to their factory defaults.

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Interface Specifications

13.4 Interface Specifications

LAN (standard equipment)

USB device (standard equipment)

(Not available when USB host is selected)

USB host (standard equipment)

(Not available when USB device is selected)

GP-IB (-02 model)

Standard compliance IEEE 802.3

Transmission method 10BASE-T, 100BASE-TX (automatic detection)

Full-duplex transmission

Protocol TCP/IP

Connector

Type of information sent and received

RJ-45

Settings and measurements via communications commands

Settings

Default settings

IP address, subnet mask, default gateway

Communications command port: 1 to 9999

IP address: 0.0.0.0

Subnet mask: 255.255.255.0

Default gateway: 0.0.0.0 (none)

Communications command port: 23

Electrical specifications USB 2.0 (full-speed)

Connector Series B receptacle

Class

Default setting

Class

Capacity limit

Saving of measured values

File operations

CDC class (USB COM), HID class (USB keyboard mode)

CDC class (USB COM)

Mass storage class (FAT16/32 support, no VFAT support)

Up to 128 GB (theoretical value)

•Touching the SAVE key outputs the current measured value or screen (BMP format).

•All contents of measured value memory can be output to the USB flash drive from the File Operations screen.

Save settings (with or without panel information), load settings, delete, change name, display disk information

Output format: TEXT, SCREEN Settings

Default settings Default setting: TEXT

Standard compliance IEEE 488.2

Interface actions

Type of information sent and received

Settings

SH1, AH1, T6, L4, SR1, RL1, PP0, DC1, DT1, C0

Settings and measurements via communications commands

Default settings

Device address: 1 to 30

Delimiter: LF, CRLF

Device address: 1

Delimiter: LF

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Interface Specifications

RS-232C

(-03 model)

Printer

(-03 model)

Connector D-sub 9-pin male with fastening screw #4-40

Transmission method Asynchronous, full duplex

Transmission speeds 9600 bps, 19200 bps, 38400 bps

Number of data bits

Number of stop bits

8

1

Parity bit

Delimiters

Flow control

Protocol

Type of information sent and received

Setting

Default setting

Supported printers

None

Transmit: CRLF; receive: CR or CRLF

None

No control sequence

Settings and measurements via communications commands

Setting

Default setting

Transmission speed: 9600 bps, 19200 bps, 38400 bps

Transmission speed: 9600 bps

Interface: RS-232C

Number of characters per line: At least 40 single-byte characters

Communications speed: 9600 bps, 19200 bps, 38400 bps (as per RS-232C setting)

Number of data bits: 8

Parity: None

Number of stop bits: 1

Flow control: None

Delimiter: CRLF

Control codes: Must be capable of printing plain text directly.

Clear statistical calculations: ON, OFF

Clear statistical calculations: OFF

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Interface Specifications

EXT I/O

(standard equipment)

Connector

Input

Output

Power supply output

Default settings

D-sub 37-pin female with fastening screw #4-40

Electrical specifications

•Isolation

Photocoupler-isolated no-voltage contact input

(Support for current sink and source output)

•Input on

Residual voltage of 1 V or less

Input on current: 4 mA (reference value)

•Input off

Open (breaking current of 100 µA or less)

•Response time

ON edge: Max. 0.1 ms

OFF edge: Max. 1.0 ms

Input signals

TRIG, KEY_LOCK, LOAD0 to LOAD4, PRINT

Settings

Input filter: ON, OFF

Input filter response time: 50 ms to 500 ms

Electrical specifications

•Isolation

Photocoupler-isolated open drain output (non-polar)

•Maximum load voltage

30 V DC

•Residual voltage

1 V or less (with load current of 50 mA) or 0.5 V or less (with load current of 10 mA)

•Maximum output current

50 mA/channel

Output signals

EOM, HI, IN, LO, BIN0 to BIN9, OB, ERR

Settings

EOM output: HOLD, PULSE

EOM pulse width: 1 ms to 100 ms

Output voltage

Sink output support: 4.2 V to 5.8 V

Source output support: -4.2 V to -5.8 V

Maximum output current

100 mA

External power supply input

None

Isolation

Floating from protective ground potential and measurement circuit

Terminal-to-ground voltage

50 V DC, 33 V rms AC, 46.7 V peak AC or less

Input filter: OFF

Input filter response time: 50 ms

EOM output: HOLD

EOM pulse width: 5 ms

Current sink/source setting: Current sink (NPN) (factory default)

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14 Maintenance and Service

14

Maintenance and Service

WARNING

Customers should not attempt to modify, disassemble or repair the instrument.

Fire, electric shock and injury could result.

Calibration and repair

The calibration frequency varies depending on the status of the instrument or installation environment. We recommend that the calibration frequency is determined in accordance with the status of the instrument or installation environment and that you request that calibration be performed periodically.

When calibration or repair is requested to Hioki, the settings will be returned to the default settings.

Before requesting calibration or repair, we recommend saving the settings of the instrument in a

USB flash drive.

Transporting the instrument

• To ensure that the product arrives safely, use the original box and packaging from when you purchased it. However, do not use the original box if it is torn or otherwise damaged or the original packaging if it has been crushed. Instead, use standard, commercially available packaging materials to carefully pack the product in the same manner as it arrived after purchase.

• Please note that if you pack the product so that it is not adequately cushioned and it suffers damage during shipment, you will be billed for the cost of repair, even if the product is still within the warranty period.

• Be sure to disconnect all cables from the product before packing it.

• Exercise care that the product is not dropped or subject to other mechanical shock during shipment.

14

Replacement parts and their service lives

The characteristics of some of the parts used in the product may deteriorate with extended use.

To ensure the product can be used over the long term, it is recommended to replace these parts on a periodic basis.

When replacing parts, please contact your authorized Hioki distributor or reseller.

The service life of parts varies with the operating environment and frequency of use. Parts are not guaranteed to operate throughout the recommended replacement cycle.

Recommended

Replacement Cycle

Approx. 5 years

Notes and Conditions

The PCB on which the part is mounted must be replaced.

Part Name

Electrolytic capacitors

LCD backlight (halflife of brightness)

Relays

Backup battery

(lithium battery)

Approx. 5 years

Approx. 5 years

Approx. 10 years

Based on 24 hours/day usage

For range switching 10 times/h

If the date or time is not substantially accurate, the battery should be replaced.

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Q&A (Frequently Asked Questions)

14.1 Q&A (Frequently Asked Questions)

• If no measured value is displayed even when the metal pins of the measurement cable are shorted together, internal damage may have occurred. Contact your authorized Hioki distributor or reseller.

• If the instrument seems to be malfunctioning, check this section and then contact your authorized

Hioki distributor or reseller.

Troubleshooting contents

“1. General issues” (p. 168)

“2. Measurements” (p. 169)

“3. Communications” (p. 171)

“4. EXT I/O” (p. 173)

“Frequently Asked Questions for External Control (EXT I/O)” (p. 175)

If unable to resolve the issue, please contact your authorized Hioki distributor or reseller.

1. General issues

No.

Issue

1-1 The instrument cannot be turned

ON. (The display is blank.)

1-2 Key and touch panel cannot be operated.

1-3 Comparator/BIN judgment results are not displayed on the screen.

1-4 There is no sound

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168

Color of the start button

Items to check

Green

Possible causes → Solutions

The screen may be too dark.

→ Adjust the screen brightness.

See p. 89

Red

Does not light up

(Light is OFF)

The instrument is in the halt state.

→ Push the start button.

The instrument is not receiving power.

→ Check the continuity of the power cord.

→ Verify that the circuit breaker has not tripped.

→ Turn ON the main power switch

(at the back of the instrument).

p. 28 p. 28

The supply voltage or frequency is not correct.

→ Check the power rating (100 V to

240 V AC, 50 Hz/60 Hz).

Icon indication KEY icon indication The key has been locked.

→ Cancel the key lock.

→ Turn OFF the EXT I/O KEY_

LOCK signal.

REMOTE icon indication

The instrument is in the remote state.

→ Touch the LOCAL key to cancel the remote state.

Measured value

Beep setting www.

(

Displayed

Not displayed

NoCntct

−−−−−−−

OFF

or

)

.com

The comparator function and BIN function are OFF .

→ Set these functions to ON .

Judgment is not made if there is a contact error or if a measurement has not been done.

The function is OFF .

→ Set the function to ON .

p. 87 p. 129

CD* p. 51 p. 57 p. 46 p. 88 [email protected]

Q&A (Frequently Asked Questions)

No.

Issue

1-5 No judgment sound.

Items to check

Buzzer setting for comparator function

OFF

ON

Possible causes → Solutions

The function is OFF .

→ Set the function to ON .

Buzzer volume is OFF.

→ Set the volume to a value other than OFF .

-

BIN measurement

→ No judgment sound.

*: Communication Command Instruction Manual provided with the application disc

See p. 55 p. 88 p. 56

2. Measurements

No.

Issue

2-1 Measurement values are not stable.

(

Items to check

Effects of noise May be susceptible to noise

Circuit to be measured

AC signal is superimposed.

Temperature is not stable (just manufactured, just unpacked, or is held by hand, etc.).

Output resistance

(internal resistance) of the object to be measured is high.

Temperature compensation

TC )

ON

OFF

Possible causes → Solutions

See “Appx. 4 Noise

Countermeasures”

See “6.1 Obtaining Stable

Measured Values” (p. 67).

Leave the object to be measured to adapt to the ambient temperature.

See p. Appx.8

p. 67

The instrument’s bias current or input resistance is affecting measurement results.

→ If the range is 10 V or less, set the input resistance to AUTO.

The temperature sensor is not appropriately positioned.

→ Move the temperature sensor closer to the measurement target.

→ Position the temperature sensor so that it is not affected by airflow.

→ If the measurement target responds to temperature changes more slowly than the temperature sensor, increase the temperature sensor’s response time by covering it with something. The temperature sensor’s response time is about 10 minutes (reference value).

Temperature coefficient is not set appropriately.

→ Measure the temperature coefficient of the object to be measured in advance and set the value to the instrument.

The measurement target’s voltage value is fluctuating due to the temperature, for example, when the room temperature has not stabilized.

→ Turn ON temperature compensation ( TC ).

p. 76 p. Appx.5

p. 10 p. 80 p. 80

14

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Q&A (Frequently Asked Questions)

No.

Issue

2-2 Measured value differ from expected value. (A negative value is displayed.)

2-3 Measured value is not displayed.

（ For more information about measurement error displays, see p. 46.)

Scaling function

Items to check

ON

Measurement cable connection

Possible causes → Solutions

The offset setting is not correct.

→ Turn scaling OFF , or reconfigure the setting properly.

Cable is not connected properly.

→ Check the connections.

See also No. 2-1.

NULL function

Measured value

ON

NoCntct

+OvrRng

−OvrRng

Zero point is shifted.

→ Set the NULL function OFF , or reconfigure the settings properly.

There is a break in the measurement cable.

→ Replace the measurement cables.

Metal pins (probes) of the measurement cable are worn or cables are cut.

→ Replace the measurement cables.

The metal pins (probes) are not in contact with the measurement target.

→ Clean or replace the metal pins

(probes).

→ Increase the contact pressure.

The measurement target is made of a material such as conductive paint or conductive rubber, resulting in a high resistance value between the

HIGH and LOW terminals.

→ Set the contact function to OFF , or use a smaller threshold.

(When measuring enclosure potential)

Capacitance between battery electrode and enclosure is small.

→ Set the contact function to OFF , or use a smaller threshold.

Measurement range does not cover the object to be measured.

→ Change the range or set it to auto-range.

Nothing is displayed. No range is selected during autorange operation.

→ See No. 2-4.

Circuit to be measured Voltage is fluctuating.

→ Use a fixed range.

2-4 No range is selected during auto-range operation (no appropriate range is found).

2-5 The auto-hold function is not working (hold operation is not being canceled).

Measured value

Not stabilizing.

Does not change.

→ See No. 2-1.

Incorrect range.

→ Select an appropriate range or use auto-range.

See p. 82 p. 26 p. 31 p. 78 p. 3 p. 3 p. 31 p. 71 p. 71 p. 35

p. 35 p. 169 p. 35

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Q&A (Frequently Asked Questions)

No.

Issue

2-6 Measured temperature is not displayed correctly.

2-6 Measured temperature is not displayed correctly.

Items to check

Temperature sensor

Sub-display

STOP or

Trend and settings screens

EXTERNAL trigger

Possible causes → Solutions

There is a problem with the connection.

→ Connect the temperature sensor by inserting the plug all the way in.

The specified temperature sensor has not been used.

→ Use the Z2001 Temperature

Sensor.

The temperature sensor is defective.

→ Replace the Z2001 Temperature

Sensor.

Temperature cannot be displayed on the trend display or settings screens.

→ Close the trend display or settings screen.

Temperature is updated based on the voltage. Temperature will not be updated when measurement is stopped.

→ Push [TRIG] key to execute triggered measurements or restart continuous measurements.

See p. 27

p. 16 p. 37 p. 38

14

3. Communications

Operation can be easily confirmed by referring to “8.3 Communications Settings” (p. 109).

No.

Issue

3-1 The instrument is not responding at all.

Display

Items to check

REMOTE icon is not displayed

Possible causes → Solutions

Connection is not established.

→ Check whether the connector has been connected.

→ Check whether the interface setting is correct.

REMOTE icon is displayed

See

p. 98 p. 100 p. 102 p. 104

(USB)→ Install the driver in the control device.

(RS-232C)→ Use a cross cable.

(USB, RS-232C)→ Check the COM port number on the control device.

(RS-232C)→ Use the same communication speed for the instrument and the control device.

Commands are not accepted.

→ Check the software delimiter.

→ (GP-IB) Check the message terminator setting.

→ (GP-IB) Check whether the address setting has been configured properly.

p. 98 p. 101 p. 98 p. 100 p. 100

p. 102

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Q&A (Frequently Asked Questions)

3-1

3-2

The instrument is not responding at all.

An error occurred.

Green LED on the LAN connector on the rear of the instrument

Display

Unlit

Lit

Command error

(LAN)→ Check the cable.

(LAN)→ Check that the LAN setting of the instrument and control device is the same.

(LAN)→ Check that the LAN setting of the instrument and control device is the same.

The command is not recognized as a valid instruction.

→ Check the command spelling.

(Space: x20H)

→ Do not append a question mark

(

?

) to commands that are not queries.

→ (RS-232C) Use the same communications speed for the instrument and the control device.

The input buffer (256 bytes) is full.

→ Insert a dummy query after sending several lines of commands.

Example: Send

*OPC?

→ Receive

1

3-3 No response to query.

Communication monitor

Execution error

No response

The command string is correct, but the instrument is not able to execute it.

Example: The data was spelled incorrectly.

:VOLT:DC:RANG 10000

→ Check the specifications of the command(s) in question.

The input buffer (256 bytes) is full.

→ Insert a dummy query after sending several lines of commands.

Example: Send

*OPC?

→ Receive

1

":TRIG:SOUR EXT"

is used to send

:READ?

and the instrument is waiting for a trigger.

→ Check the command specifications.

Response The program is malfunctioning.

→ Check the receive portion of the program.

*: Communication Command Instruction Manual provided with the application disc p. 108 p. 105 p. 105

CD* p. 100

CD*

CD*

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Q&A (Frequently Asked Questions)

4. EXT I/O

Operation can be easily confirmed by referring to “11.5 Input Test/Output Test” (p. 138).

No.

Issue

4-1 The instrument is not operating at all.

4-2 Trigger input does not work.

4-3

4-4

Print is not enabled.

No panel can be loaded.

“11.5 Input

Test/Output

Test” (p. 138)

Trigger source

Duration of

TRIG signal

ON

Duration of

TRIG signal

OFF

Input filter for TRIG and

PRINT signals

:INIT:CONT

(command)

Interface setting

Input filter

Items to check for TRIG and

PRINT signals

Panel number selected for

LOAD signal

IN/OUT displayed does not match the external device connected.

INTERNAL

Less than 0.1 ms

Less than 1 ms

Possible causes → Solutions

The wiring is incorrect.

→ Check the following on the EXT

I/O again.

•A connector is disconnected.

•The pin number is not correct.

•ISO_COM pin wiring

•NPN/PNP setting

•Contact (or open collector) control

(voltage is not used to control)

•Power supply to external device

(This instrument does not require a power supply.)

INTERNAL setting does not accept a TRIG signal.

Set the trigger source to

EXTERNAL .

Duration of TRIG signal ON is short.

→ Ensure that the ON time is at least 0.1 ms.

Duration of TRIG signal OFF is short.

→ Ensure that the OFF time is at least 1 ms.

ON

OFF

Other than

ON

PRINT

A longer signal control time is required.

→ Increase the response time.

→ Turn OFF the filter function.

The instrument is not in the trigger wait state.

→ Send the

:INIT

or

:READ?

command.

Setting to PRINT is required.

→ Set the interface to PRINT .

A longer signal control time is required.

→ Increase the response time.

→ Turn OFF the filter function.

Is the panel saved?

Panel has not been saved for the panel number to be loaded.

→ Change the panel number or save the panel to the panel number selected as LOAD signal.

See p. 125 p. 39

-

p. 136

CD* p. 146 p. 136 p. 62 p. 130

14

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Q&A (Frequently Asked Questions)

No.

Issue

4-5 EOM signal is not output.

Measured value

Items to check

Not updated

EOM signal logic

Possible causes → Solutions

See No. 3-2 above.

EOM signal setting

Pulse

Hold

(The EOM signal turns ON once measurement is completed.)

The pulse output time is short and the controller cannot detect the

EOM signal.

→ Increase the pulse output time of the EOM signal or set the output setting to "hold".

The measurement time is short, and the interval during which the

EOM signal is OFF cannot be detected.

→ Change the EOM signal output setting to “pulse”.

→ See No. 1-3 above.

4-6 The Hi, IN and Lo signals are not output.

Comparator judgment results

Are not displayed

*: Communication Command Instruction Manual provided with the application disc

See p. 168

p. 137 p. 168

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Cleaning

Frequently Asked Questions for External Control (EXT I/O)

Question

What is the required connection to input

TRIG signal?

Which are the common ground pins for input and output signals?

Are the common (signal ground) pins shared by both input and output?

How to check whether the signal is output?

How do I troubleshoot input (control) signal issues?

Are the comparator judgment signals (HI, IN, LO) retained during measurements (or will they be OFF)?

What is the condition to output the ERR signal?

Is a direct connection to programmable controller available?

Can external I/O be used at the same time as RS-232C or other communication?

How should the external power be connected?

Can free-running measurement values be acquired using a foot switch?

Instruction/Method

Short (ON) the TRIG pin and ISO_COM pin with a switch or opencollector output.

The ISO_COM pins.

Use ISO_COM pin as the shared common pin for input and output signals.

Check voltage waveforms with an oscilloscope. To do this, pull up

(by several k Ω ) the output pins such as EOM signal and comparator judgment results signal to the isolated power output (ISO_5V) of the instrument and confirm the voltage level.

For example, if TRIG signal does not operate properly, bypass the

Programmable Controller and short the TRIG pin directly to an ISO_

COM pin. Take care not to short-circuit the power supply.

When the state is RUN and the trigger source is set to INTERNAL , judgment results are retained even during measurements.

In the other cases, judgment results will be cleared once a measurement has started.

An error is displayed in the following cases:

•Metal pin of the measurement cable is not in contact.

•The contact is not stable

•Metal pin of the measurement cable or object to be measured is dirty or has an oxide layer.

•The measurement cables are cut.

•Capacitance of the object to be measured is small.

Direct connection is possible if the output circuit of the programmable controller supports relays or open collectors and the input circuit of the programmable controller supports contact input. (Before connecting, confirm that voltage and current ratings will not be exceeded.)

Yes.

(Example: Set measurement conditions using communications and measure with TRIG signal of the EXT I/O.)

All the instrument's EXT I/O input and output signals operate from an internal isolated power source. Power need not be supplied from the programmable controller (supplying power to the ISO_5V terminal is prohibited).

Measurement values can be acquired using the sample application.

The sample application can be downloaded from our website (http:// www.hioki.com).

14

14.2 Cleaning

To clean the instrument and optional equipment, wipe gently with a soft cloth moistened with water or mild detergent.

Wipe the LCD gently with a soft, dry cloth.

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Error Displays

14.3 Error Displays

The following messages are displayed on the screen when the instrument malfunctions or encounters an abnormal measurement state.

• If you feel that the instrument may be malfunctioning, contact your authorized Hioki distributor or reseller after reviewing the information provided in “Q&A (Frequently Asked Questions)” (p. 168).

• When an error is displayed on the LCD screen and service is required, please contact your authorized Hioki distributor or reseller.

176

Display

+OvrRng/−OvrRng

NoCntct

Err.TC

ERR:001

ERR:004

ERR:005

ERR:030

ERR:031

ERR:032

ERR:050

ERR:051

ERR:060

ERR:061

ERR:062

1.800.561.8187

Description

Over-range

Contact error

Lower limit is higher than

Upper limit.

Temperature compensation error

Cannot set because the lower limit value is greater than the upper limit value.

Solution

Select the appropriate range.

(p. 35)

Check the connections with the object to be measured.

(p. 31)

Or, adjust the threshold for the contact check.(p. 71)

Connect a temperature sensor.

(p. 27)

Set an upper limit value that is greater than the lower limit value.

(p. 51)

Turn OFF the auto-hold function. (p. 70)

Unable to change the setting during auto-hold.

Unable to set NULL due to an abnormal measurement value.

Command error.

Execution error. Invalid parameter.

When auto-hold function is enabled, settings for measurement speed and continuous mode cannot be changed.

When OverRng , NoCntact , or

----- is displayed, NULL value cannot be obtained.

Remote command syntax error. (String is incorrect or incorrect character code is used.)

Remote command execution error. The parameter value is out of range.

Execution error.

Remote command execution error.

The panel does not exist.

Panels that have not been saved cannot be read.

The panel does not exist.

Unable to rename.

Cannot use USB memory.

Set I/F function to USB-

MEMORY.

The drive is not ready.

(No USB memory inserted)

This format is not supported.

www.

Name of panels that have not been saved cannot be changed.

When I/F is set to USB COM ,

USB flash drive cannot be used.

USB flash drive is not inserted.

Format of the USB flash drive is not correct.

.com

Return from the abnormal measurement state. (p. 46)

Check if the commands are correct. (See the application disc provided.)

Check if the parameters are correct.

Check the execution error conditions for each command.

Select a proper panel. (p. 61)

Select a panel that has been saved. (p. 61)

Set the I/F to USB MEMORY .

(p. 115)

Insert a USB flash drive.

(p. 115)

Format the USB flash drive to

FAT32.

[email protected]

Error Displays

ERR:063

ERR:064

ERR:065

ERR:070

Display

Error while reading the

USB memory.

Error while reading the configuration file.

File not found.

No space available.

Description

An error occurred while reading the USB flash drive.

An error occurred while reading a setting file in the

USB flash drive.

Solution

The file may be damaged.

Recover the file or use a different USB flash drive.

The file may be damaged.

Recover the file or use a different USB flash drive.

A valid file was not found in the

USB flash drive.

Specify a proper file.

There is no free space in the

USB flash drive.

Delete unnecessary files to secure free space.

ERR:071

ERR:076

ERR:077

ERR:078

ERR:079

ERR:080

ERR:090

ERR:091

ERR:092

ERR:093

ERR:094

ERR:095

ERR:096

ERR:098

ERR:099

1.800.561.8187

Error occurred saving the file.

Error occurred deleting the file.

An error occurred while saving data in the USB flash drive.

An error occurred while deleting data in the USB flash drive.

The file name cannot be changed as there are files with the same file name.

The file may be damaged.

Recover the file or use a different USB flash drive.

The file may be damaged.

Recover the file or use a different USB flash drive.

Specify a different file name.

Unable to rename the file because another file with the same name already exists.

Error occurred renaming the file.

Error while reading the

USB memory.

An error occurred while changing a file name in the

USB flash drive.

An error occurred while reading the USB flash drive.

Unable to enter the adjustment mode.

ROM check sum error.

RAM error.

Memory access error.

Turn off the power and restart after a while.

Memory test error.

The mode cannot be changed to adjustment mode.

Check sum of the program

ROM does not match.

The RAM failed.

Communication with memory failed.

The file may be damaged.

Recover the file or use a different USB flash drive.

The file may be damaged.

Recover the file or use a different USB flash drive.

The Adjustment screen is not available for use by end-users.

Malfunction of the instrument.

Request service.

Malfunction of the instrument.

Request service.

Turn OFF the power and turn it

ON again after some time.

Adjustment data error.

Backup data error.

Failed to detect line frequency. Select line frequency.

"The clock is not set.

Reset? (15-01-01

00:00:00)"

Failed to detect line frequency; will be set to

50 Hz.

www.

Memory failure.

Malfunction of the instrument.

Request service.

Adjustment data is not correct. Malfunction of the instrument.

Request service.

Backup data is not correct.

Settings have been reset.

Reconfigure measurement conditions and other settings.

The power frequency has not been detected.

Check the voltage and frequency of the power supply.

(p. 90)

Clock has not been set.

Replace the backup battery and set a clock.

The power frequency has not been detected. The frequency will be set to 50 Hz.

.com

Check the voltage and frequency of the power supply.

(p. 90)

14 [email protected]

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Error Displays

ERR:999

Display

Error

Description Solution

An error due to other reasons. Malfunction of the instrument.

Request service.

178

INFO:001

INFO:002

INFO:003

INFO:004

INFO:032

INFO:033

INFO:034

INFO:035

INFO:036

INFO:037

INFO:038

INFO:039

INFO:005

INFO:006

INFO:010

INFO:011

INFO:012

INFO:013

INFO:014

INFO:015

INFO:030

INFO:031

INFO:050

INFO:070

INFO:071

Set NULL.

Current measured values will be acquired as NULL.

NULL function will be turned off.

Lock the keys and return to the main screen.

The keys and touch panel are locked. Press

[UNLOCK] 1 second to unlock.

NULL function will be turned

OFF.

Enables the key lock and returns to the main screen.

Keys and touch panel have been locked. Hold the

UNLOCK for one second.

The keys and touch panel are locked. Press

[LOCAL] to unlock.

The keys and touch panel are locked by an external

I/O (LOAD signal).

Keys and touch panel have been locked. Touch

Keys and touch panel have been locked by EXT I/O (LOAD signal).

LOCAL

The panel will be loaded.

The panel will be read.

Loading the panel...

The panel is being read.

.

The panel will be saved.

The panel will be saved.

The panel will be saved in an area already in use.

Overwrite?

Overwrite an existing panel.

Do you want to overwrite?

Saving the panel... The panel is being saved.

The panel will be deleted.

The panel will be deleted.

The file will be saved.

The file already exists.

Overwrite?

The file will be saved.

There is a file with the same file name. Do you want to overwrite?

The file will be renamed.

The file name will be changed.

The file will be deleted.

The file will be deleted.

Reading a file list

(updating).

The file list is being read.

-

-

-

-

-

-

-

-

-

-

-

-

-

-

-

-

-

Loading the file.

File load completed.

Saving the file.

File save completed.

The number of files exceeds 1000.

Any files can’t be displayed.

The file is being read.

The file has been read.

The file is being saved.

File save is completed.

Printing...

Copying the screen.

Printing.

The screen is being copied.

Screen copy completed.

Screen copy is completed.

Reset?

There are more than 1000 files. Some files are not shown in the file list. (The instrument can only process up to 1000 files.) www.

Do you want to reset?

.com

-

-

-

-

-

-

Delete some files so that there are 1000 or fewer files.

-

[email protected]

INFO:081

Err.Cal

Display

Enter password for

Adjustment Mode.

Err.AD

Err.REF

Error Displays

Description

Enter the password for adjustment mode.

Compensation values for self-calibration are not correct. There is a failure in communicating with the A/

D converter due to external noise or the instrument is malfunctioning.

A communication error with A/

D converter. There is a failure in communicating with the A/

D converter due to external noise or the instrument is malfunctioning.

Reference voltage error.

Solution

-

If this error is displayed continuously, request for service.

If this error is displayed continuously, request for service.

If this error is displayed continuously, request for service.

14

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Disposing of the Instrument

14.4 Disposing of the Instrument

The instrument uses a lithium battery as a backup for its clock.

When disposing the instrument, remove the lithium battery and dispose the battery and instrument in accordance with local regulations.

WARNING

To avoid electric shock, turn OFF the main power switch and disconnect the power cord and measurement cables before removing the lithium battery.

Removing the Lithium Battery

Required tools:

• One Phillips screwdriver (No.1)

• One pair of tweezers (to remove the lithium battery)

1

Verify that the power to the instrument is

OFF and unplug the power cord, and any other cords or cables.

2

Remove the six screws from the sides.

Lithium battery

3

Remove the cover.

4 Insert the tip of the tweezers between the battery and the battery holder as shown in the picture and lift up on the battery to remove it.

CAUTION

Exercise care not to short the positive and negative terminals. Doing so may cause sparks.

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CALIFORNIA, USA ONLY

This product contains a CR Coin Lithium Battery which contains Perchlorate Material - special handling may apply.

See www.dtsc.ca.gov/hazardouswaste/perchlorate www.

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15 License Information

15

License Information

The instrument uses IwIP open-source software.

lwIP’s License lwIP is licenced under the BSD license:

Copyright (c) 2001-2004 Swedish Institute of Computer Science.

All rights reserved.

Redistribution and use in source and binary forms, with or without modification, are permitted provided that the following conditions are met:

1. Redistributions of source code must retain the above copyright notice, this list of conditions and the following disclaimer.

2. Redistributions in binary form must reproduce the above copyright notice, this list of conditions and the following disclaimer in the documentation and/or other materials provided with the distribution.

3. The name of the author may not be used to endorse or promote products derived from this software without specific prior written permission.

THIS SOFTWARE IS PROVIDED BY THE AUTHOR ``AS IS AND ANY EXPRESS OR IMPLIED

WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED WARRANTIES OF

MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE DISCLAIMED. IN

NO EVENT SHALL THE AUTHOR BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL,

SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED

TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR

PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF

LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE

OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF

ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.

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181

Appendix

Appendix

Appx. 1 Block Diagram

1

Meas-circuit power supply

F

Switching power supply

G

2

High EXT I/O

3

A

B

A/D

Low

Contact check

C

E

CPU

GP-IB/

RS232C

USB

4

LAN

V

QTM

5

Measurement block

D

Control block

6

• The voltage detected between the HIGH and LOW terminals is adjusted appropriately and connected to a high-impedance amp. (A)

From the 100 mV range to the 10 V range, the input resistance is switched between high-Z (10

G Ω or greater) and 10 M to 10 M Ω .

Ω . For the 100 V range and 1000 V range, the input resistance is fixed

• The detected voltage adjusted in (A) is converted into a digital value by a high-stability reference voltage source and a high-resolution A/D converter. (B)

• The impedance between HIGH and LOW is measured by the contact check circuit. If the impedance is high, a contact error is determined to have occurred. The contact check function can be used from the 100 mV range to the 10 V range. (C)

• The instrument has a built-in temperature measurement circuit, making it possible to correct voltage measured values according to the temperature when measuring a target that exhibits a high degree of temperature dependence. (D)

• A high-speed CPU makes possible high-speed measurement and a speedy system response. (E)

• The measurement block is isolated from the control block, increasing the circuit’s resistance to the effects of noise. (F)

• Use of a switching power supply with a wide input range from 100 V to 240 V enables stable measurement, even in environments in which stable power cannot be supplied. (G)

7

8

9

10

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Appx.

1

Measuring the Enclosure Potential of Laminated Lithium-ion Batteries

Appx. 2 Measuring the Enclosure Potential of

Laminated Lithium-ion Batteries

This appendix addresses measurement of the enclosure potential of laminated lithium-ion batteries, including a description of causes of such potentials and precautions that should be observed during measurement.

Internal insulation defects in lithium-ion batteries

Internal insulation defects in lithium-ion batteries cause degraded characteristics and may lead to serious accidents under certain conditions. Lithium-ion batteries are prone to a variety of insulation defects, as described in the following table:

Internal insulation defects in laminated lithium-ion batteries

Defect location

Between positive electrode and negative electrode

Between positive electrode and enclosure aluminum

Between negative electrode and enclosure aluminum

Between the electrolyte and the enclosure aluminum

Cause

Penetration of separator due to metal deposition, contamination with metallic particles, fold misalignment, etc.

Contamination with metallic particles, defective seal on aluminum laminated foil

Contamination with metallic particles, defective seal on aluminum laminated foil

Cracks in the aluminum laminated foil

Phenomenon

Increased self-discharging, abnormal heating

The positive electrode’s current collector is usually made from aluminum, making this an unlikely issue.

The lithium-ion battery’s performance may be degraded if cracks form in the enclosure aluminum’s insulating film.

The lithium-ion battery’s performance may be degraded if there is a defect in the insulation between the negative electrode and the enclosure aluminum.

Insulation defects between the positive electrode and the negative electrode lead to increased selfdischarging and abnormal heating of the battery. In general, they can be identified by a voltage drop after aging the battery for a period ranging from several days to several weeks.

Insulation defects between the enclosure aluminum and the positive electrode, negative electrode, or electrolyte are not immediately problematic since they do not form a closed loop through the enclosure aluminum.

When a lithium-ion battery is subject to repeated expansion and contraction due to charging and discharging, cracks more readily form in the insulating film that coats the surface of the aluminum laminated foil. Such cracks can lead to defective insulation between the electrolyte and enclosure aluminum. When an insulation defect occurs between the positive electrode or negative electrode and the enclosure aluminum, the likelihood of a closed loop being formed through the enclosure aluminum and the electrolyte increases.

In general, the standard electrode potentials of lithium-ion batteries are as shown in the following table:

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Measuring the Enclosure Potential of Laminated Lithium-ion Batteries

Standard electrode potential of materials used in lithium-ion batteries

Area

Positive electrode

Enclosure

Negative electrode

Material

Li

(1-n)

CoO

2

Al

Li

(1-n)

C

6

Standard electrode potential

+1 V

-1.7 V

-2.9 V

1

Because the enclosure aluminum has a high potential relative to the negative electrode, the occurrence of an insulation defect between the negative electrode and the enclosure aluminum while another insulation defect is occurring between the electrolyte and the enclosure aluminum can trigger a reduction reaction of the aluminum enclosure, generating an Li-Al alloy. This alloy is extremely fragile, leading to the formation of pinholes in the enclosure aluminum. If moisture gets into the battery through these pinholes, it will react with the electrolyte to form a gas, causing a dramatic reduction in the service life of the lithium-ion battery.

2

3

On the other hand, if an insulation defect between the positive electrode and the enclosure aluminum occurs at the same time as another insulation defect between the electrolyte and the enclosure aluminum, the enclosure aluminum will undergo an oxidation reaction, and no unstable

Li-Al alloy will be formed. In short, insulation defects between the positive electrode and the enclosure aluminum do not adversely affect the service life of lithium-ion batteries.

4

For the above reasons, the enclosure potential of laminated lithium-ion batteries is assessed by measuring the potential difference between the positive electrode and the enclosure aluminum in order to detect insulation defects between the negative electrode and the enclosure aluminum.

5

Enclosure potential measurement

When the potential difference between the positive electrode and the enclosure aluminum is measured, the voltage will vary depending on whether there are any internal insulation defects in the lithium-ion battery (see table below).

Insulation defect locations and observed potentials

Insulation defect location

0 V

Voltage observed between the positive electrode and the enclosure aluminum

Between positive electrode and enclosure aluminum

Between negative electrode and enclosure aluminum

Up to 4 V

Between electrolyte and enclosure aluminum Up to 2.7 V

No insulation defect Indeterminate

6

7

8

9

10

Observe the following precautions when measuring the enclosure potential.

Input resistance

The observed voltage will be indeterminate when you measure a non-defective lithium-ion battery with no insulation defects. Consequently, it is necessary to connect a resistor with a high resistance between the voltmeter’s HIGH and LOW terminals so as to determine the electrical potential.

For this instrument, it is recommended to set the input resistance to AUTO and connect a resistor externally with a resistance of 10 M

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Appx.

3

Measuring the Enclosure Potential of Laminated Lithium-ion Batteries

Response time

The 63% response time can be calculated using the following formula, where

R

P resistance between the HIGH and LOW terminals and

C

P battery’s positive electrode and its enclosure aluminum:

indicates the

the capacitance between the lithium-ion

63% response time =

C

P

R

P

As an example, a

C

P

value of 10 nF and an

R

P

value of 100 M time of 1 sec. Allow a stabilization time of (3 ×

C

P

R

P

) to (5 ×

C

P after connecting the probes to the measurement target.

Ω

R

P

would result in a 63% response

) before measuring the voltage

Instrument

R

P

10 M Ω to 1 G Ω V

Ω .

Contact check

When performing enclosure potential measurement, a voltage reading close to 0 V generally indicates a non-defective target. However, the instrument will indicate a voltage close to 0 V even when the probes are not connected to the measurement target due to the resistance

R

P

connecting the HIGH and LOW terminals. Poor contact is a particular issue with the enclosure aluminum due to the fact that it is coated with an insulating film. Be sure to enable the instrument’s contact check function so that you do not make judgments based on measured values obtained due to poor contact.

Charge state

The observed voltage depends on the battery’s charge state (SOC: State of charge). To increase the reproducibility of measurement, use as consistent a charge state as possible.

Noise countermeasures

Since the output resistance for the observed voltage is extremely high, it is necessary to implement adequate noise countermeasures.

(1) Use shielded wire for measurement cables and connect the shielding to the instrument’s LOW terminal.

Choose shielded wire that uses Teflon or polyethylene as an insulating material (between the shielding and the internal conductor). Shielding wire that uses polyvinyl chloride (PVC) as an insulating material will generate an error component due to its low insulation resistance.

(2) Synchronize the instrument’s integration time to the power supply cycle (PLC setting).

(3) Be sure to ground the instrument’s power supply.

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Causes of Error in Voltage Measurement

Appx. 3 Causes of Error in Voltage Measurement

Thermal electromotive force

Thermal electromotive force is the potential difference that occurs at connections between different metals, for example between the measurement cable’s metal pins and the measurement target.

When this thermal electromotive force is large, an error will be introduced to measurements (see figure below).

Temperature t

1

Metal A

Temperature t

2

1

2

3

Metal B

Instrument

Figure. Occurrence of Thermal Electromotive Force

Instrument 4

The magnitude of thermal electromotive force varies with the combination of metals involved. In general, the larger the temperature difference, the larger the thermal electromotive force.

Since the instrument’s measurement terminals are made of copper, it is possible to minimize the effects of thermal electromotive force by using copper for contacts such as banana terminals and crimp terminals and as a wiring material. Typical banana terminals and crimp terminals use brass as a material, making them poorly suited for use when making precise, microvolt-scale measurements. Use cables with low electromotive force with copper terminals as measurement cables when calibrating the instrument.

Examples of high thermal electromotive force

• Setups in which the measurement circuit contains a fuse, temperature fuse, thermistor, bimetal components, or thermostat

• Setups in which single stable relay contacts are used to switch measurement circuits

• Setups in which the instrument is connected to the measurement target by means of alligator clips

• Setups in which the measurement terminals or measurement cable metal pins are held by hand

• Setups in which the temperature of the measurement target or instrument is unstable

• Setups in which different wiring materials are used for the HIGH and LOW terminals

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6

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Appx.

5

Causes of Error in Voltage Measurement

Thermal electromotive force relative to copper

Metal

Nickel

Platinum

Aluminum

Lead

Brass

Thermal electromotive force (μV/°C)

-22.4

-7.6

-3.4

-3.2

-1.6

Carbon

Silver

Zinc

Copper

0

0

-0.6

-0.2

Gold

Iron

0.2

12.2

Use a metal with a positive value for contacts facing copper and a metal with a negative value for the opposite side. (Chronological Scientific Table, 2006 Edition)

Effects of input resistance

When the measurement target has a large output resistance, measured values will be attenuated by the instrument’s input resistance. Caution is particularly warranted when selecting the 100 V range or the 1000 V range, or when fixing the input resistance to 10 M the 10 V range.

Ω

for the 100 mV range to

Example: Measuring a coin battery with an open voltage of 3 V with the input resistance set to

10 M

Ω

and a measurement target output resistance of 1 k Ω

10

10 M Ω

M Ω + 1 k Ω

× 3 = 2 .

9997 V

Output resistance R

OUT

Voltage V

Input resistance

R

IN

V

R

OUT

R

IN

+ R

IN

V

Figure. Effects of Input Resistance

Effects of bias current

A miniscule current flows to the instrument’s input terminal. This current, which is needed in order to drive the instrument’s measurement circuit, is known as a bias current. When the measurement target has a large output resistance, the measurement error caused by the bias current will increase in magnitude.

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Causes of Error in Voltage Measurement

Example: Using a measuring instrument with a bias current of 30 pA when dividing a 100 mV voltage with a

R

1

=

R

2

= 1 M Ω resistor yields the following measured value.

R

OUT

100

= 1 mV

M

×

1

Ω // 1 M Ω =

1

1 M Ω

M Ω

⋅ 1

+ 1

M Ω

M Ω

1

M Ω

M Ω

+ 1 M Ω

− 500 k Ω ×

=

30

500 pA k Ω

= 49 .

985 mV

Output resistance

R

OUT

= R

1

// R

2

R

1 V

−

R

OUT

I

B

Voltage V

R

2

Bias current

I

B

Figure. Effects of Bias Current

Effects of high-voltage measurement

When a high voltage is measured, the instrument’s internal resistance

R

IN generating heat.

consumes power,

Power consumption W =

V 2

R

IN

The input resistance voltage division ratio varies with the amount of heat generated, and this variation affects measurement. The effect of heat on measured values is included in the instrument’s specifications as the voltage coefficient error. Generally speaking, caution should be exercised when measuring voltages in excess of 300 V.

4

5

6

7

Voltage V Input resistance

R

IN

8

9

Figure. Effects of High-Voltage Measurement

Effects of burst noise

Burst noise, which is generated by amplifiers used in signal conditioning (shown in A in "Appx. 1

Block Diagram" [p. Appx.1]), consists of microvolt-order voltage shifts that last from several seconds to several minutes. This type of noise is believed to be caused by lattice defects and contamination in the amplifier. Although Hioki strives to carry out inspections to reduce burst noise, it is not possible to completely eliminate this type of noise.

10

In applications requiring precise measurement, use statistical techniques to ensure the required level of precision, for example by acquiring multiple data points over an extended period of time

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Appx.

7

1

2

3

Noise Countermeasures

Appx. 4 Noise Countermeasures

Effects of induced noise

A significant amount of noise may be generated by components and devices such as power cords, fluorescent lights, solenoid valves, and computer displays. The following phenomena may result in noise that affects resistance measurement:

1. Capacitive coupling from high-voltage circuits

2. Electromagnetic coupling from high-current circuits

Capacitive coupling from high-voltage circuits

Current flowing in from a high-voltage circuit is dominated by the coupled capacitance. As an example, a current of about 38 nA will be induced when a 100 V commercial power line and wiring used to measure resistance undergo capacitive coupling at 1 pF: i

N

=

V

Z

= 2

π

⋅ 60 ⋅ 1 pF ⋅ 100 V

RMS

= 38 nA

RMS

The noise current is converted into the noise voltage output resistance is 1 k Ω , noise of 38 μV

RMS

OUT i n

by the output resistance

R

OUT

. If the

will be superposed onto the detected voltage, causing a change in the measured value (see Figure 1).

R

V

DISPLAY

= V + R

OUT i

N

= V + 1 k Ω ⋅ 38 nA

RMS

= V + 38

µ

A

RMS

Close to high-voltage circuits, it is effective to shield measurement cables and the measurement target with a low-impedance line from the instrument (see Figure 2). The instrument’s LOW terminal is a low-impedance line.

Fluorescent light Fluorescent light

Static shielding

Shield wire

High

Noise current i

N

High

V+R

OUT i

N

V

OUT

Voltage V

Low

Figure 1. Noise Coupling from a High-voltage Circuit

Low

Noise current i

N

Figure 2. Noise Countermeasures

Using Shielding

V

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Noise Countermeasures

Electromagnetic coupling from a high-current circuit

High-current circuits give off a magnetic field, and even larger magnetic fields may be generated by transformers or choke coils with a large number of turns. The voltage induced by a magnetic field is affected by distance and area (see Figure 3). A voltage of about 0.75 μV will be generated in a 10 cm 2 loop positioned 10 cm away from a 1 A commercial power supply.

v

N

=

= d

φ

d t

4

π

= d d t

µ

2

0

IS

π

r

=

4

π

⋅ 10 − r

7 fI

⋅ 10 − 7 ⋅ 60 Hz ⋅

0 .

1

0.001 m 2 m

⋅ 1 A

RMS = 0 .

75

µ

V

RMS

1

2

To counter the effects of electromagnetic coupling, it is effective to keep voltage detection wires away from lines that are generating noise and to twist them together (see Figure 4).

3

Voltage V

Noise voltage v

N

High

Loop area S

V+v

N

V

Twisting wires together High

Voltage V

V

4

Magnetic flux φ

Low

Magnetic flux φ

Low

Low

5

Figure 3. Noise Coupling from a High-current Circuit

Figure 4. Noise Countermeasure:

Twisting Wires Together

6

If induced noise is caused by the commercial power supply

Induced noise caused by commercial power supplies can come not only from commercial power lines and power outlets, but also from fluorescent lights and household appliances. Such noise depends on the commercial power supply frequency and occurs at a frequency of 50 Hz or 60 Hz.

One method typically used to reduce the effects of noise caused by commercial power supplies is to set the integration time to a whole-number multiple of the power supply cycle (see Figure 5).

7

8

Measurement signal with superposed power supply noise

9

Integration time

Ideal measurement signal (DC)

Figure 5. Averaging of Noise through Integration

10

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9

Noise Countermeasures

Using the instrument with the power supply frequency set to 60 Hz in a region with 50 Hz power will cause measured value wobble even if the integration time is set in PLC units.

Figure 6. Noise Rejection Characteristics Using Integration

Effects of conductive noise

Conductive noise embodies a channel of potential noise introduction that is separate from induced noise, which is superposed on measurement targets or measurement cables. Conductive noise is superposed on power lines or control lines such as USB. Various devices are connected to power lines, including motors, welding machines, and inverters. Large spike currents flow to the power supply while such equipment is operating, as well as when it starts and stops. These spikes combine with the power line’s wiring impedance to create a large spike voltage in the power line and the power supply’s ground line, and that spike voltage may affect measuring instruments.

Similarly, noise may be introduced from the control lines of connected external devices. Noise introduced from external devices’ power supplies and noise generated by DC-DC converters and other components inside external devices may enter the measuring instrument via its USB or EXT

I/O wiring (see Figure 1).

Instrument

RS-232C

EXT I/O

USB

GP-IB

LAN

External device

(computer, programmable controller)

Power lines

L

N

PE

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Motor

Welding machine

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Self-calibration

An effective approach for dealing with conductive noise is to implement countermeasures while monitoring the results with the Hioki 3145 Noise HiLogger. Once the offending circuit has been identified, the countermeasures depicted in Figure 2 provide an effective way to address the issue.

Isolation

Instrument

External device

(computer, programmable controller)

1

2

Isolation

Common-mode filter on ingress circuit

Power lines

L

N

PE

Physical separation of power lines

Separate circuit’s power lines

L

N

PE

3

4

Figure 2. Conductive Noise Countermeasures

Physically separating power lines

It is desirable that powered devices, welders, and similar equipment be connected to a power supply on a separate circuit than the instrument.

Inserting a common-mode filter (EMI choke) into the ingress circuit

For maximum effectiveness, choose a common-mode filter with high impedance. The more filters are added, the more effective this measure will be.

Isolation

Photoisolation of control lines is an effective noise countermeasure. It is also effective to isolate power lines with a noise-suppressing transformer. Please note that use of a common ground line across the isolation will reduce the effectiveness of this approach.

5

6

7

Appx. 5 Self-calibration

The instrument’s self-calibration function serves to maintain measurement precision by correcting for fluctuations in the internal measurement circuitry. The instrument is designed for automatic selfcalibration.

Specific operation depends on the measurement state (p. 37)

RUN state Self-calibration is performed between measurements.

STOP state and when using the EXTERNAL trigger source

Self-calibration is performed continuously while waiting for a trigger. When a trigger is input, self-calibration stops, and measurement starts. Once measurement is complete, self-calibration resumes.

If the trigger function’s “number of measurements” parameter is set to a value other than 1, self-calibration will resume after the set number of measurements has been performed.

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11

Measuring Multiple Targets

Appx. 6 Measuring Multiple Targets

To measure multiple targets with a single instrument, you will need to provide an external switching relay. Please note the following important considerations when designing the switching device:

Relay selection

(1) Choose a relay with low thermal electromotive force.

Thermal electromotive force increases in the following order:

Latching < OptoMOS relays < Single-stable (high sensitivity) relays < Single-stable relays

(2) Choose a relay that delivers stable contact performance even under minuscule load.

Power relays experience poor contact under conditions of minuscule load. Be sure to use a relay designed for use with low signals or an OptoMOS relay.

(3) Choose a relay whose contacts have a rated voltage that is at least 200% greater than the switching voltage.

A relay with a rated voltage of 110 V will support a switching voltage of 55 V or less.

(4) When using an OptoMOS relay, choose a relay with a small output pin capacitance.

When the capacitance, calculated by multiplying the output pin capacitance by the number of contacts, increases, the contact check function will generate a result of “connected” even when all contacts are open.

(5) When the instrument’s input resistance is set to 10 M the effects of contact resistance.

Ω

, measured values may decrease due to

Example: An error of 1 ppm will occur if the contact resistance is 10

10 M Ω .

Ω and the input resistance is

(6) Examples of appropriate relays

Panasonic ATXS20620: High sensitivity, 4.5 V single-stable, suitable for use with minuscule loads

Panasonic AT26620:

Panasonic AQW216:

4.5 V latching, suitable for use with minuscule loads

OptoMOS relay, max. 120 Ω on-resistance, 50 pF output pin capacitance

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Measuring Multiple Targets

Taking steps to prevent short-circuits

Exercise caution concerning the following so as to avoid shorting the measurement target:

(1) Design the switching device so that all contacts are off when it is turned on and off.

(2) Allow an interval of time when all contacts are off when switching contacts (“break before make”).

(3) Insert a fuse into the measurement line.

Avoid use of fuses with a rating of 1 A or less and resettable fuses as they have a large thermal electromotive force.

HIGH

Instrument

RY1

RY2

RY3

LOW

V

3

4

5

6

1

2

7

8

9

10

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Rack Mounting

Appx. 7 Rack Mounting

Rack-mounting hardware can be attached to the instrument after removing the screws on the sides.

Rack-mounting hardware reference figures

Spacer (EIA- and JIS-compliant)

This spacer should be installed between the instrument and the rack-mounting hardware. Two are required.

9

18

SPCC t: 1.6 mm

2× φ 5

4×C2

Rack-mounting bracket (EIA-compliant, to mount 1 instrument)

Two are required (one on the left and one on the right).

8.35

10.3

2×(R)

133

SPCC t: 2.0 mm

35

2×C2

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14

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Rack Mounting

Rack-mounting bracket (EIA-compliant, to mount 2 instruments)

Two are required (one on the left and one on the right).

2× φ 4.5

21.5

8.35

10.3

2×(R)

45

35

2×(R)

SPCC t: 2.0 mm

480

460

35

44

10.3

Rack-mounting bracket (JIS-compliant, to mount 1 instrument)

216.4

4×(R)

2× φ 4.5

SPCC t: 2.0 mm

45

35

3

4

5

6

1

2

7

8

9

10

12×C2 2× φ 4.5

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15

Rack Mounting

Rack-mounting bracket (JIS-compliant, to mount 2 instruments)

45

35

480

460

SPCC t: 2.0 mm

45

35

2× φ 4.5

439.6

Connecting bracket (EIA- and JIS-compliant)

Two are required (same design used on both left and right).

2× φ 3.5

40

205

198

150

8

20

5

A

C2

12×C2

2× φ 4.5

SPCC t: 1.6 mm

4× φ 4.5

40

2×C2

Max. 5

150

2×M3 screw hole

C2

Notches (one of which can be found in area labeled A) serve to prevent distortion of the shape of the hole caused by flexing (total of four).

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Rack Mounting

Installation instructions

Be careful not to lose the parts removed from the instrument as you may need to use them again.

WARNING

To prevent damage to the instrument and electric shock, observe the following precautions when choosing screws:

• When installing the rack-mounting brackets on the sides of the instrument, use screws with a nominal length that does not exceed the thickness of the bracket by more than 3.5 mm (so that the screw does not protrude into the instrument by more than 3.5 mm).

• When removing the rack-mounting brackets and restoring the instrument to its bench-top configuration, use the screws with which the instrument shipped at the time of purchase (feet: M3 × 8 mm; sides: M4 × 6 mm). If those screws are lost or damaged, please contact your authorized Hioki distributor or reseller.

1

2

3

When installing the instrument in a rack, use a commercially available shelf or other suitable part to ensure adequate strength.

4

(1) Remove the feet on the bottom of the instrument and the screws from the side covers.

1

Screws (bottom: four M3 × 8 mm screws; sides: four M4 × 6 mm screws)

2

5

6

7

8

9

10

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17

Rack Mounting

(2) Attach the rack-mounting brackets.

For one instrument

EIA-compliant hardware

You will need: Four M4 × 10 mm screws

Insert a spacer on both sides of the instrument and attach the rack-mounting brackets.

JIS-compliant hardware

You will need: Four M4 × 10 mm screws

Insert a spacer on both sides of the instrument and attach the rack-mounting brackets with the M4 × 10 mm screws.

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Rack Mounting

For two instruments

EIA-compliant hardware

You will need: Ten M4 × 10 mm screws and four M3 × 6 mm screws

1

Insert a spacer on the outside of each instrument (no spacers are needed where the connecting brackets will be attached) and attach the rack-mounting brackets with the MR

× 10 mm screws (total of four).

2

Attach the connecting brackets to the inside of each instrument using the M4 × 10 mm screws (total of six).

3

Position the instruments so that the connecting brackets are aligned and secure them together with the four M3 × 6 mm screws (on top and bottom).

1

2

3

3

2

: No screw

1

3

4

5

6

1

2

7

8

9

10

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Appx.

19

Rack Mounting

JIS-compliant hardware

You will need: Ten M4 × 10 mm screws and four M3 × 6 mm screws

1

Attach a connecting bracket to the inside of each instrument with M4 × 10 mm screws (total of six).

2

Position the instruments so that the connecting brackets are aligned and secure them together with the four M3 × 6 mm screws (on top and bottom).

3

Insert a spacer on the outside of each instrument (no spacers are needed where the connecting brackets are attached) and attach the rack-mounting bracket with the M4 × 10 mm screws (total of four).

2

1

1 2

: No screw

3

3

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Appx. 8 Outline Drawings

215

Outline Drawings

232

14

14

(Unit: mm)

7

8

9

10

3

4

5

6

1

2

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Appx.

21

Calibration

Appx. 9 Calibration

Calibration conditions

• Ambient temperature and humidity: 23°C ±5°C, 80% RH or less

• 60 min. warm-up time

• Power supply: 100 to 240 V ±10%, 50 Hz/60 Hz, distortion rate of 5% or less

• External magnetic field close to that characterizing terrestrial magnetism

• Settings initialized with reset

Calibration equipment and calibration points

Measurement function

DC voltage

Range

100 mV

1000 mV

10 V

100 V

1000 V

Temperature

Calibration point

0 mV, +100 mV

0 mV, +1000 mV

0 V, +10 V

0 V, +100 V

0 V, +1000 V

25 ° C: 2186.0 Ω ( ± 0.1%) input

Equipment

Fluke multi-function calibration instrument 5730A equivalent

Fluke low-thermal-electromotive-force cable 5440A-7005 equivalent

Fluke multi-product calibrator 5520A equivalent

Connection methods

FLUKE

5730A

FLUKE

5520A

High High

Low-thermal-electromotive-force cable

Fluke 5440A-7005

Low Low

Instrument

Voltmeter calibration

High

Wiring resistance

Round trip 500 m or less

Ω

Temp

Sensor

Low

Thermometer calibration

Instrument

Temperature measurement circuit

Voltmeter calibration

Use all copper wiring and twist the high and low wires together. Measured values are particularly prone to the effects of thermal electromotive force when using alligator clips for connections.

Thermometer calibration

Connect the sleeve side of the temperature measurement circuit to the low side of the calibration device.

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Adjustment

Appx. 10 Adjustment

The adjustment screen accessible on the MENU > SYSTEM screen is used by Hioki for repair and adjustment purposes. It is not for customer use.

1

2

3

4

5

6

7

8

9

10

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Appx.

23

Index

Index

A

ABS MODE............................................................... 52

Absolute value judgment function............................. 52

Acquiring measured values ...................................... 97

Adjusting touch panel position .................................. 90

Application disc....................................................... 2, 8

AUTO ........................................................................ 35

Auto-hold .................................................................. 70

Connector.............................................................. 15

Pin layout ............................................................ 128 1

F

FAST ......................................................................... 36

Feet .......................................................................... 14

Files ........................................................................ 123

Filter ........................................................................ 136

2

B

Backlight ................................................................... 89

Bar graphs ................................................................ 43

BIN measurement

Judgment results ................................................... 44

Settings ................................................................. 57

Block diagram .................................................... Appx.1

Button ....................................................................... 14

Buzzer ...................................................................... 88

G

GP-IB

Cable ....................................................................... 4

Connection .......................................................... 103

Connector.............................................................. 15

Settings ............................................................... 102

3

4

C

H

Hold .......................................................................... 70

5

Calibration ................................ 167, Appx.22, Appx.23

Causes of error .................................................. Appx.5

Cleaning ................................................................. 175

Clock......................................................................... 30

Communication cables ......................................... 4, 10

Communication command instruction manual............ 2

Communications commands ..................... 97, 109, 110

Communications time ............................................... 97

COMP ....................................................................... 53

Comparator measurement

Judgment results ................................................... 44

Settings ................................................................. 53

Compensation .......................................................... 77

Contact check ........................................................... 71

Continuous measurement ........................................ 37

Current Sink (NPN) and Current Source (PNP) ..... 126

I

Input resistance ........................................................ 76

Input test/output test ............................................... 138

Inspection ................................................................. 24

Installation .................................................................. 7

Integration time ......................................................... 67

Interface settings ..................................................... 111

Internal circuit architecture ..................................... 133

J

6

7

D

Judgment .................................................................. 51

Measurement error.......................................... 54, 59

Judgment results ...................................................... 43

Judgment tones

BIN measurement ................................................. 59

Comparator measurement .................................... 55

8

9

Date .......................................................................... 30

Display digits ............................................................ 48

Disposing ................................................................ 180

K

Key lock .................................................................... 87

10

E

L

Enclosure potential of batteries ................... 72, Appx.2

EOM signal ............................................................. 130

Error displays.......................................................... 176

External control....................................................... 125

External input and output

Configuring .......................................................... 136

Example connections .......................................... 134

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LABEL ...................................................................... 49

Labels ....................................................................... 49

LAN

Cable ....................................................................... 4

Connection .......................................................... 108

Connector.............................................................. 15

Settings ............................................................... 105 [email protected]

Ind.

1

Index

Loading

From internal memory (panel data) ....................... 61

From USB flash drive (panel data) ...................... 122

LOAD signal ........................................................... 129

Q

Q&A ........................................................................ 168

M

Main power switch .................................................... 15

MANUAL ................................................................... 36

Measured value is fixed ............................................ 37

Measurement cables .................................. 3, 9, 26, 31

Measurement count .................................................. 39

Measurement error ................................................... 46

Measurement range ........................................... 18, 35

Measurement screen ................................................ 16

Measurement speed ........................................... 19, 36

Measuring enclosure potential........................... Appx.2

MEDIUM ................................................................... 36

R

Rack ................................................................ Appx.14

Range ................................................................. 18, 35

Repair ..................................................................... 167

Replacement parts ................................................. 167

Resetting .................................................................. 93

RS-232C

Cable ....................................................................... 4

Connection .......................................................... 101

Connector.............................................................. 15

Settings ............................................................... 100

RUN .................................................................... 20, 37

N

Names ...................................................................... 49

Network .................................................................. 104

Noise ................................................................. Appx.8

NPN ........................................................................ 126

NULL ........................................................................ 78

Number of display digits ........................................... 48

O

Operation keys ......................................................... 14

Options ....................................................................... 3

Outline drawings .............................................. Appx.21

Outputting

Data.............................................................. 111, 118

Measurement conditions ..................................... 120

Outputting and print of judgment results

Comparator measurement .............................. 56, 59

S

Sample application software..................................... 97

Saving

Measurement conditions ....................................... 61

Scaling ...................................................................... 82

Screen ................................................................ 14, 16

Screen brightness..................................................... 89

Screen color ............................................................. 89

Screenshots............................................................. 118

Serial number ........................................................... 15

Service lives ........................................................... 167

Settings screen ......................................................... 16

Signal...................................................................... 129

SLOW ....................................................................... 36

Smoothing ................................................................ 69

Specifications ......................................................... 151

Speed ................................................................. 19, 36

Statistical calculations .............................................. 84

STATISTICS ....................................................... 43, 85

Statistics display ....................................................... 43

STOP .................................................................. 20, 37

Storage

Measurement data ................................................ 42

Sub-display ............................................................... 43

Symbols on the instrument ......................................... 6

P

PANEL ................................................................ 62, 65

Panel save

Information that can be saved ............................... 61

Settings ................................................................. 62

PNP ........................................................................ 126

Power cord ............................................................... 25

Power supply ............................................................ 28

Power supply frequency ........................................... 90

Printer

Option...................................................................... 4

Print ..................................................................... 143

Print examples ........................................................ 148

Printing ................................................................... 143

Program .................................................................... 97

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Ind.

2 www.

T

Temperature compensation ...................................... 80

Temperature display ................................................. 18

Temperature sensor.................................................. 27

Test leads ................................................... 3, 9, 26, 31

Time .......................................................................... 30

Timing chart ............................................................ 139

Touch panel .............................................................. 90

Transporting ........................................................... 167

Trends ................................................................ 43, 45

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TRIG signal............................................................. 129

U

USB

Cable ....................................................................... 4

Connection ............................................................ 99

Connector.............................................................. 15

Settings ................................................................. 98

USB driver ................................................................ 99

USB flash drive

Connector.............................................................. 14

How to use ........................................................... 115

V

Variability .................................................................. 69

Voltage trends........................................................... 43

W

Waveform ................................................................. 45

When the instrument starts up.................................. 91

Z

Zero-point ................................................................. 78

Index

3

4

5

6

1

2

7

8

9

10

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Ind.

3

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