YOKOGAWA TA320 User Manual

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Time Interval Analyzer

Yokogawa Electric Corporation

IM 704210-01E

1st Edition

Foreword

Notices

Trademarks

Thank you for purchasing the YOKOGAWA TA320 Time Interval Analyzer. This user’s manual contains useful information about the functions and operating methods of the instrument. It also contains precautions that should be observed during use. To ensure correct use of the instrument, please read this manual thoroughly before operating it. Keep the manual in a safe place for quick reference whenever a question arises. The following manual is provided with this instrument in addition to this manual.

Manual Name Manual No. Description

TA320 GP-IB Interface IM704210-12E Describes the communication functions for the GP-IB User’s Manual interface.

• The contents of this manual are subject to change without prior notice as a result of improvements in the instrument’s performance and functions. Display contents illustrated in this manual may differ slightly from what actually appears on your screen.

• Every effort has been made in the preparation of this manual to ensure the accuracy of its contents. However, should you have any questions or find any errors, please contact your nearest YOKOGAWA representative as listed on the back cover of this manual.

• Copying or reproduction of all or any part of the contents of this manual without YOKOGAWA’s permission is strictly prohibited.

• MS-DOS is a registered trademark of Microsoft Corporation.

• HP-GL is a registered trademark of Hewlett-Packard Company.

Revisions

• 1st Edition : December 1996

IM 704210-01E

Checking the Contents of the Package

Unpack the box and check the contents before operating the instrument. If the wrong instrument or accessories have been delivered, if some accessories are missing or if they appear abnormal, contact the dealer from which you purchased them.

Main Body

Check that the model name and suffix code given on the name plate of the rear panel match those on your order.

Nameplate

MODEL (Type Name)

704210

SUFFIX (Suffix Code)

Item Suffix Code Specifications

Power voltage •••••••••••••••••••• 100-240 VAC Power cord -D UL/CSA Standards Power Cord (Part No.: A1006WD)

-F VDE Standard Power Cord (Part No.: A1009WD)

-Q BS Standard Power Cord (Part No.: A1054WD)

-R SAA Standard Power Cord (Part No.: A1024WD)

[Maximum Rated Voltage: 125 V, Maximum Rated Current: 7 A]

[Maximum Rated Voltage: 250 V, Maximum Rated Current: 10 A]

[Maximum Rated Voltage: 240 V, Maximum Rated Current: 10 A]

NO. (Instrument No.)

When contacting the dealer from which you purchased your instrument, please quote the instrument No.

Note

It is recommended that the packing box be kept in a safe place. The box can be used when you need to transport the instrument somewhere.

IM 704210-01E

Standard Accessories

Checking the Contents of the Package

The following standard accessories are supplied with the instrument. Make sure that all items are present and undamaged.

Power cord (one of the following power cords

is supplied according to the instrument's suffix codes)

Optional Accessories

UL/CSA standard A1006WD

VDE standard A1009WD

F Q R

Rubber feet(2pcs) (A9088ZM(1pc))

BS standard A1054WD

User's manual Communication interface manual

SAA standard A1024WD

(1pc)

The following optional accessories are available. On receiving these optional accessories, make sure that all the items that you ordered have been supplied and that they are undamaged. If you have any questions regarding optional accessories, or if you wish to place an order, contact the dealer from whom you purchased them.

Part Name Part No. Minimum Q’ty Remarks

150 MHz passive probe 700996 1 Input impedance: 10 MΩ, Length: 1.5 m BNC cable (1m) 366924 1 BNC-BNC, Length: 1 m BNC cable (2m) 366925 1 BNC-BNC, Length: 2 m Rack-mount kit 751533-E3 1 For EIA single mount Rack-mount kit 751534-E3 1 For EIA dual mount Rack-mount kit 751533-J3 1 For JIS single mount Rack-mount kit 751534-J3 1 For JIS dual mount

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Safety Precautions

This instrument is an IEC safety class I instrument (provided with terminal for protective grounding). The following general safety precautions must be observed during all phases of operation, service and repair of this instrument. If this instrument is used in a manner not sepecified in this manual, the protection provided by this instrument may be impaired. Also, YOKOGAWA Electric Corporation assumes no liability for the customer’s failure to comply with these requirements.

The following symbols are used on this instrument.

To avoid injury, death of personnel or damage to the instrument, the operator must refer to an explanation in the User’s Manual or Service Manual.

Make sure to comply with the following safety precautions. Not complying might result in injury, death of personnel or damage to the instrument.

Alternating current.

ON(power).

OFF(power).

WARNING

Power Supply

Ensure the source voltage matches the voltage of the power supply before turning ON the power.

Power Cable and Plug

To prevent an electric shock or fire, be sure to use the power cord supplied by YOKOGAWA. The main power plug must be plugged in an outlet with protective grounding terminal. Do not invalidate protection by using an extension cord without protective grounding.

Protective Grounding

Make sure to connect the protective grounding to prevent an electric shock before turning ON the power.

Necessity of Protective Grounding

Never cut off the internal or external protective grounding wire or disconnect the wiring of protective grounding terminal. Doing so poses a potential shock hazard.

Defect of Protective Grounding and Fuse

Do not operate the instrument when protective grounding or fuse might be defective.

Do not Operate in an Explosive Atmosphere

Do not operate the instrument in the presence of flammable liquids or vapors. Operation of any electrical instrument in such an environment constitutes a safety hazard.

Do not Remove any Covers

There are some areas with high voltages. Do not remove any cover if the power supply is connected. The cover should be removed by qualified personnel only.

External Connection

To ground securely, connect the protective grounding before connecting to measurement or control unit.

IM 704210-01E

Structure of the Manual

This User’s Manual consists of 12 chapters and an Index as described below.

Chapter1 Functions

Describes the measuring principles and functions of the instrument. No description is given for operating methods, however it is recommended that this chapter be read before operating the instrument to gain a basic understanding of what the instrument can do.

Chapter2 Name and Use of Each Part

Describes the name and function of each part of the instrument. For keys and rotary knob, reference sections (or page numbers) are also given.

Chapter3 Before Starting Measurement

Describes usage precautions, how to install the instrument, connect the power cord, turn the power switch ON/OFF, connect a probe and set the date and time.

Chapter4 Common Operations

Describes how to start and stop acquisition of a measuring input signal and set a numerical value using the ten-key.

Chapter5 Setting the Sampling Mode and Measurement Function (Item)

Describes how to set the sampling mode and measurement function (item).

Chapter6 Setting the Acquisition Conditions for Input Signal to be Measured

Describes how to set the acquisition conditions for the input signal to be measured, including input coupling, input impedance, trigger mode and trigger level, gate type, sample size and sampling interval, arming source, slope, delay types, and inhibit.

Chapter7 Displaying the Measured/Computed Data

Describes how to display a histogram, time variation, list of measured data and statistic values, and how to set multi-window, panorama display and histogram data addition functions.

Chapter8 Storing and Recalling the Set-up Information from the Internal Memory

Describes how to store the set-up information to the internal memory and how to recall the stored set-up information and change it.

Chapter9 Saving and Loading the Data from a Floppy Disk

Describes how to save data such as set-up information, measured/computed results and screen image to a floppy disk, load the saved data, format a floppy disk and delete data.

Chapter10 Using Other Functions

Describes how to output measured data to a plotter, input/output the reference signal, output monitor signals, initialize the set-up information, calibrate the instrument, set the screen contrast and set the touch key sound.

Chapter11 Troubleshooting and Maintenance

Describes corrective actions to be taken in case of problems and their causes, describes error messages, how to use the error logging and self-test functions, adjust the time base, carry out the performance test and reset the circuit breaker.

Chapter12 Specifications

Describes the specifications of the instrument.

Index

Describes important terms.

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Notations and Symbols Used in this Manual

Procedure

Explanation

Unit

k :1000 (e.g. 100 kHz) K :1024 (e.g. 640 KB (floppy disk memory capacity))

Symbols Used

The following symbols are used in this User’s Manual.

To avoid injury or death of personnel, or damage to the instrument, the operator must refer to the User’s Manual. In the User’s Manual, these symbols appear on the pages to which the operator must refer.

WARNING

CAUTION

Note

Symbols used on pages where description of operation is given

The following symbols are used in chapters 3 to 11, to classify descriptions.

Procedure

Explanation

Describes precautions that should be observed to prevent the danger of serious injury or death to the user.

Describes precautions that should be observed to prevent the danger of minor or moderate injury to the user, or the damage to the property.

Provides information that is important for proper operation of the instrument.

Describes keys to be used and operating procedure. With some operating procedures, it is not necessary to carry out the steps according to the order in which they are described.

Gives a detailed description of settings and restrictions regarding operations. No detailed description is given for the function. For a detailed description of the function, refer to Chapter 1.

IM 704210-01E

Foreword ........................................................................................................................................................................................ 1

Checking the Contents of the Package .......................................................................................................................... 2

Safety Precautions ................................................................................................................................................................... 4

Structure of the Manual .......................................................................................................................................................... 5

Notations and Symbols Used in this Manual ............................................................................................................... 6

Chapter 1 Functions

1.1 System Configuration and Block Diagram.........................................................................................................1-1

1.2 Measuring Principles and Sampling Mode......................................................................................................... 1-2

1.3 Measurement Functions (Measurement Items) .................................................................................................. 1-3

Period, Time Interval ............................................................................................................................................................... 1-3

Pulse Width, Phase Difference, Duty Ratio ............................................................................................................................. 1-4

1.4 Computation ....................................................................................................................................................... 1-5

Readout Function ..................................................................................................................................................................... 1-5

Calculation, Statistical Computation Items ............................................................................................................................. 1-6

1.5 Setting the Acquisition Conditions for Input Signal to be Measured .................................................................1-8

Input Coupling, Input Impedance, Measurement Block .......................................................................................................... 1-8

Trigger Mode/Trigger Level, Gate .......................................................................................................................................... 1-9

Sample Size (Number of Events), Sampling Interval, Arming, Arming Delay ..................................................................... 1-10

Inhibit ......................................................................................................................................................................................1-11

1.6 Displaying the Measured/Computed Data........................................................................................................ 1-12

Histogram Display, Multi-window .........................................................................................................................................1-12

Panorama Display, Histogram Data Addition, Time Variation Display ................................................................................ 1-13

List Display, Statistics Display ...............................................................................................................................................1-14

1.7 Other Functions

External Signal Input/Output (Rear Panel), Communications, Storing and Recalling of Set-up Information, Saving and

Loading Data from a Floppy Disk, Auto Loading of Set-up Information, Plotter Output, Initialization of Set-up

Information, Calibration .................................................................................................................................................. 1-16

Numeric Value Setting, Contrast, Touch-key Sound, Error Logging, Self-test ..................................................................... 1-17

Chapter 2 Name and Use of Each Part

2.1 Front Panel.......................................................................................................................................................... 2-1

2.2 Rear Panel ........................................................................................................................................................... 2-2

Chapter 3 Before Starting Measurement

3.1 Usage Precautions .............................................................................................................................................. 3-1

3.2 Installing the Instrument .....................................................................................................................................3-2

3.3 Connecting the Power Cord................................................................................................................................ 3-4

3.4 Turning the Power Switch ON/OFF ...................................................................................................................3-5

3.5 Connecting the Cables/Probes ............................................................................................................................3-6

3-6 Compensating a Probe (Carrying Out Phase Correction)................................................................................... 3-7

3.7 Setting the Date and Time .................................................................................................................................. 3-9

Index

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Contents

Chapter 4 Common Operations

4.1 Starting/Stopping Acquisition of a Measuring Input Signal .............................................................................. 4-1

4.2 Setting Numerical Values ...................................................................................................................................4-2

Chapter 5 Setting the Sampling Mode and Measurement Function (Item)

5.1 Selecting the Sampling Mode .............................................................................................................................5-1

5.2 Setting Period Measurement............................................................................................................................... 5-2

5.3 Setting Time Interval Measurement ................................................................................................................... 5-4

5.4 Setting Pulse Width Measurement .....................................................................................................................5-6

5.5 Setting Phase Difference Measurement.............................................................................................................. 5-8

5.6 Setting Duty Ratio Measurement .....................................................................................................................5-10

Chapter 6 Setting the Acquisition Conditions for Input Signal to be Measured

6.1 Setting the Input Coupling, Input Impedance, Trigger Mode and Trigger Level .............................................. 6-1

6.2 Setting the Gate Type, Sample Size and Sampling Interval ...............................................................................6-3

6.3 Setting the Arming Source, Slope and Delay Types .......................................................................................... 6-6

6.4 Setting the Inhibit Function ................................................................................................................................6-9

Chapter 7 Displaying the Measured/Computed Data

7.1 Setting the Histogram Display Function and Reading the Data (Readout) ........................................................7-1

7.2 Using the Multi-window Function ..................................................................................................................... 7-5

7.3 Using the Panorama Display Function ...............................................................................................................7-9

7.4 Carrying out Histogram Data Addition ............................................................................................................ 7-11

7.5 Setting the Time Variation Display Function and Reading the Data (Readout) .............................................. 7-13

7.6 Selecting the List Display Function and Displaying the Data ..........................................................................7-17

7.7 Selecting the Statistics Display Function and Reading the Statistic Data ........................................................7-19

7.8 Selecting the Histogram Display Function and Displaying the Statistic Data ................................................. 7-21

Chapter 8 Storing and Recalling the Set-up Information from the Internal Memory

8.1 Storing the Set-up Information in the Internal Memory .....................................................................................8-1

8.2 Recalling the Set-up Information from the Internal Memory ............................................................................ 8-2

Chapter 9 Saving and Loading the Data from a Floppy Disk

9.1 Points to Note during Use of the Floppy Disk Drive .........................................................................................9-1

9.2 Formatting a Floppy Disk ...................................................................................................................................9-2

9.3 Saving, Loading and Auto Loading the Set-up Information .............................................................................. 9-4

9.4 Saving and Loading the Measured and Computed Data .................................................................................... 9-7

9.5 Saving the Screen Image Data ..........................................................................................................................9-10

9.6 Auto Saving the Screen Image Data .................................................................................................................9-12

9.7 Deleting Saved Data .........................................................................................................................................9-13

Chapter 10 Using Other Functions

10.1 Outputting Data to a Plotter .............................................................................................................................. 10-1

10.2 Inputting and Outputting the Reference Signal ................................................................................................10-5

10.3 Outputting the Monitor Signal.......................................................................................................................... 10-7

10.4 Initializing the Set-up Information ...................................................................................................................10-8

10.5 Calibrating the Instrument ..............................................................................................................................10-10

10.6 Setting the Screen Contrast ............................................................................................................................ 10-11

10.7 Turning the Touch-key Sound ON/OFF......................................................................................................... 10-12

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Chapter 11 Troubleshooting and Maintenance

11.1 Troubleshooting................................................................................................................................................11-1

11.2 Messages...........................................................................................................................................................11-2

11.3 Using the Error Logging Function ................................................................................................................... 11-4

11.4 Executing the Self-test ...................................................................................................................................... 11-5

11.5 Adjusting the Time Base .................................................................................................................................. 11-8

11.6 Carrying out the Performance Test................................................................................................................... 11-9

11.7 Circuit Breaker ............................................................................................................................................... 11-19

Chapter 12 Specifications

12.1 Measuring Inputs and Trigger .......................................................................................................................... 12-1

12.2 Measurement Functions (Measurement Items) ................................................................................................ 12-2

12.3 Gate, Arming, Inhibit ....................................................................................................................................... 12-4

12.4 Display .............................................................................................................................................................. 12-5

12.5 Inputs/Outputs (Rear Panel) ............................................................................................................................. 12-7

12.6 GP-IB Interface ................................................................................................................................................ 12-8

12.7 Time Base .........................................................................................................................................................12-8

12.8 Internal Memory Function ................................................................................................................................ 12-8

12.9 Built-in Floppy Disk Drive............................................................................................................................... 12-8

12.10 General Specifications ......................................................................................................................................12-9

12.11 External Dimensions ...................................................................................................................................... 12-10

Index

Contents

Index

IM 704210-01E

1.1 System Configuration and Block Diagram

System Configuration

HP-GL compatible plotter

• Hard copy

• Set-up information list

Inhibit input External arming input (the terminal is shared with external gate input) Reference input

Block Diagram

Ach IN

Bch IN

10MHz 10MHz

Amplifier

Reference

OUT

Ach Monitor

OUT

Bch Monitor

OUT

EXT ARM IN

INHIBIT IN

10MHz-TCXO

Reference

Clock

Input

Trigger

DAC

Input

Trigger

DAC

External Arming Signal

Inhibit Signal

Monitor output Reference output

Comparator

Signal

Comparator

Multiplexer

PLL

Clock

Generator

Clock

Measuring

Controller

Fractional

Pulse

Generator

Input signal

Object to be measured

Saving and loading of data from a floppy disk

Time Measuring Unit 1

T/V

Converter

T/V

Converter

Time Measuring Unit 2

T/V

Converter

T/V

Converter

Counter

Generator

Counter

Generator

Personal computer

• Remote control

• Data collection/analysis

Communication

Contoroller

Data

Contoroller

Acquisition BUS

Data

Memory

Acquisition

Memory 1

Memory

Acquisition

Memory 2

CPU BUS

CPU

LCD

Touch Panel

GP-IB

FDD

Functions

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Signal Flow

The signal input to the input terminal (Ach IN, Bch IN) is converted into a low-impedance signal by the input amplifier. It is then sent to the comparator, where it is converted to a binary signal. At the same time, the signal from the input amplifier is output as a monitor signal via the output terminal (Ach Monitor OUT, Bch Monitor OUT). The signal multiplexer selects the binary signal according to the selected measurement function (item), then the signal is input to the measuring controller. The measuring controller controls measurement and creates fractional pulse according to the external arming signal and inhibit signal. The width of the fractional pulse is measured, with a resolution of 100 ps, by the T/V converter of the time measuring unit (1, 2), and then compared with the value on the digital counter, to provide measured data. With continuous measurement, two time measuring units (1,

2) are activated alternately.

In time stamp mode (see the following page), both measured value and time stamp data (elapsed time) are acquired in each acquisition memory (1, 2). In hardware histogram mode (see the following page), the frequency of each measured value (i.e. number of the same measured values) is acquired in each acquisition memory. The acquired data is then sent via the memory controller to a CPU, where it is used for statistical computation or displayed on the LCD. Either the signal from the internal crystal oscillator (compensated against temperature drift) or an external reference signal (input to the Reference IN terminal) can be used as the reference clock. In either case, the reference clock is output through the 10-MHz band pass filter to the Reference OUT terminal.

1-1

1.2 Measuring Principles and Sampling Mode

Measuring Principles

Time shorter than the period of the reference clock is called fractional time. In general, since the signal to be measured is not synchronized with the reference clock, fractional time exists at both beginning and end of measurement. This instrument generates a fractional pulse comprised of the fractional time and the time equivalent to one cycle of the reference clock. With the pulse width of the signal to be measured, period of the reference clock and time span of each fractional pulse assumed to be T, t multiplication of the period of the reference clock (N • t and Tb) as shown below.

, Ta and Tb respectively, T can be separated into

) and period of each fractional pulse (T

T = N • t

With this instrument, T

+ (Ta – Tb)

and Tb, the time of fractional pulses generated at the beginning and end

of measurement, are converted into a voltage value, which is then converted into a digital value by a 8-bit A/D converter. This enables measurement of the time of fractional pulse, with time resolution of 100 ps per 1 LSB. T is calculated by substituting the measured time of each fractional pulse for T

Signal to be measured

Reference clock

Fractional pulse

Time-voltage conversion

and Tb of the above formula.

V =k·T

A/D conversion A/D conversion

T =N·t + (T –T ) k: A/D conversion factor

Sampling Mode ≡For operating procedure, refer to 5.1≡

Two sampling modes are available: time stamp mode and hardware histogram mode. The sampling method (acquisition method of measured data) and display format (display method) differ depending on the sampling mode. For a detailed description of display format, refer to 1.6, “Displaying the Measured/Computed Data”.

V =k·T

b b

1-2

Time stamp mode

Measured values and their time stamps (i.e. the time on which measurement is taken) are acquired into the acquisition memory, and used as time-series data. The maximum sample size (i.e. the maximum allowable number of data items to be acquired) is 32,000, though it varies depending on the measurement function (refer to section 1.3). The measured values can be displayed in four formats (histogram, list (measured values and time stamp), time variation and statistic values. * Time stamp is expressed as the elapsed time between that when arming is activated (refer to

section 1.5) and when measurement for one sample is completed.

Hardware histogram mode

The measured value and its occurrence frequency are acquired into the acquisition memory. The maximum sample size (i.e. the maximum allowable number of data items to be acquired) is 99,999,999. The measured values can be displayed in three formats (histogram, list (measured values and frequency) and statistic values.).

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1.3 Measurement Functions (Measurement Items)

Period ≡For operating procedure, refer to 5.2≡

The time from a rising (or falling) edge to the next rising (or falling) edge of the input signal is measured. Either rising or falling edge can be selected, and channel A or B can be selected for measurement.

Example (rising slope is selected)

Measured Measured Measured

CH A/ CH B

Time Interval ≡For operating procedure, refer to 5.3≡

The time interval between the signal input to channel A and that input to channel B is measured. The following two types of time interval can be measured.

A-to-B interval

The time interval between an edge of the signal input to channel A and the first edge of the signal input to channel B is measured. Various combinations of edges can be selected as follows. For a description of combinations of slopes, refer to 5.3, “Setting Time Interval Measurement”.

Functions

Example (Both channels A and B: rise)

Measured

CH A

CH B

A-to-B-to-A interval

The time interval between an edge of the signal input to channel A and the first edge of the signal input to channel B, and the time interval between an edge of the signal input to channel B and the subsequent edge of the signal input to channel A are measured. For a description of combinations of slopes, refer to 5.3, “Setting Time Interval Measurement”.

Example (All three edges: rise)

ABA

Measured

CH A

Example (Channel A: both rise and fall, channel B: rise)

Measured Measured Measured

CH A

CH B

MeasuredMeasured Measured

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CH B

1-3

1.3 Measurement Functions (Measurement Items)

Pulse Width ≡For operating procedure, refer to 5.4≡

The time between a rising (or falling) edge and the next falling (or rising) edge of the input signal is measured. For selection of combinations of polarity, refer to 5.4, “Setting Pulse Width Measurement”. A special combination of polarity, in which a time constant T (see section 1.4) is specified to carry out measurement only when the period of the pulse is within the specified time range (22T±0.5T). This combination is called “22T”. For measurement of pulse width, channel A or B can be selected.

Example (positive: rising to falling)

Measured Measured Measured Measured

CH A/ CH B

Example (22T)

22T

Measured when within 22T ±0.5T

CH A/ CH B

Not measured when not within 22T ±0.5T

Measured when within 22T ±0.5T

Phase Difference ≡For operating procedure, refer to 5.5≡

The time between an edge of the signal input to channel A and an edge of the signal input to channel B is measured, and the measured value is then expressed in phase difference (deg) in relation to the period of the signal input to channel A which is set as 360 degrees. This measurement is available only when time stamp mode is selected as the sampling mode. For a description of combinations of slopes, refer to 5.5, “Setting Phase Difference Measurement”.

Example (Both channels A and B: rise)

Duty Ratio

Measuredtp1

Measuredt1 Measuredt2

Measuredt

CH A

CH B

1[deg]=

≡≡

≡For operating procedure, refer to 5.6

≡≡

The ratio of the time between a rising (or falling) edge and the next falling (or rising) edge in relation to one period of the input signal is measured. This measurement is available only when time stamp mode is selected as the sampling mode. For measurement of duty ratio, channel A or B can be selected.

× 360 2[deg]=

Phase difference

× 360Phase difference

≡≡

≡

≡≡

1-4

Example (rising to falling)

CH A/ CH B

Measuredt

Duty ratio

Measuredt

[

Measuredt

× 100

Duty ratio

Measuredt

2[ ]=

× 100

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1.4 Computation

Readout Function ≡For operating procedure, refer to 7.1 and 7.5≡

If histogram or time variation display format is selected (see 1.6), two markers (X1 and X2) will be displayed. This enables reading out of the coordinates of each cross-point of the markers and the histogram (or time variation). In addition, selecting a calculation area (see the following page) enables statistical computation for the area enclosed by the markers.

Histogram display format

The meaning of each value displayed at the bottom of the screen is given below.

X1: X-axis coordinate of X1 marker (measured value) Y1: Y-axis coordinate of X1 marker (frequency of X1) X2: X-axis coordinate of X2 marker (measured value) Y2: Y-axis coordinate of X2 marker (frequency of X2) N:

• WINDOW selected as calculation area: Total number of samples within the window

• MARKER selected as calculation area: Number of samples present within the area enclosed

by X1 and X2 markers

Window

X1 marker

X2 Marker

Functions

Time variation display format

The meaning of each value displayed at the bottom of the screen is given below.

X1: X-axis coordinate of X1 marker (time stamp) X2: X-axis coordinate of X2 marker (time stamp) ∆X: X2 - X1 Y1: Y-axis coordinate of X1 marker (measured value) Y2: Y-axis coordinate of X2 marker (measured value) ∆Y: |Y2 – Y1|

X1 marker

X2 Marker

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1-5

1.4 Computation

Calculation ≡For operating procedure, refer to 7.1 and 7.7≡

The following functions are available to select/set parameters required for statistical computation.

Selecting the calculation area

This function allows the user to select whether to carry out statistical computation using the measured values present in the entire window of a histogram or using those present within the area enclosed by the markers.

Setting the constant

This function allows the user to set the constant T to be used for calculation of jitter 1 (σ/T) or jitter 2 (|AVE - X

| / T) or the one to be used for measurement of pulse width (22T).

center

Statistical Computation Items ≡For operating procedure, refer to 7.1 and 7.8≡

Statistical computation can be carried out using measured values. Computation results can be displayed if histogram or statistic display format is selected (see 1.6). The entire area of a histogram (i.e. entire window area) or the area enclosed by the X1 and X2 markers can be used as the calculation area. The formula may differ depending on the sampling mode.

Time stamp mode

In the following formulas, “n” indicates the number of samples and X value for each sample.

indicates the measured

• Maximum value (MAX)

Indicates the largest value among the measured values.

MAX=[Xi]

max

• Minimum value (MIN)

Indicates the smallest value among the measured values.

MIN= [Xi]

min

• Average value (AVE)

Calculates the average of the measured values.

AVE =

• Standard deviation (

i=1

σσ

σ)

σσ

Calculates the standard deviation of the measured values. Standard deviation indicates degree of dispersion.

σ =

1 n

Σ (

i=1

Xi– AVE)

• Peak to peak (P-P)

Calculates the difference between the maximum and minimum values.

1-6

P–P= MAX– MIN

•Flutter (

σσ

σ/AVE)

σσ

Calculates flutter. Flutter indicates degree of dispersion in percentage in relation to the average value.

σ / AVE =

AVE

× 100(%)

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1.4 Computation

Hardware histogram mode

In the following formulas, “n” indicates the number of bins of a histogram. “Bin” refers to each bar of the histogram and indicates frequency of the same measured data. X

indicates the class

value of each bin. The width of bins varies depending on the specified span of X-axis, and may be as small as 100 ps. In this case, X

indicates the measured value. For details, refer to 1.6.

• Maximum value (MAX)

Indicates the largest value among the class values.

Functions

MAX=[Xi]

max

• Minimum value (MIN)

Indicates the smallest value among the class values.

MIN= [Xi]

min

• Average value (AVE)

Calculates the average value of the histogram. Pi indicates relative frequency (*).

i=1

Xi× P

AVE =

*Pi can be calculated using the formula “Pi = Ni / N” when the total number of samples to be

used for statistical computation is N and frequency (number of samples) of a bin is N

• Standard deviation (

σσ

σ)

σσ

Calculates the standard deviation of the histogram. Standard deviation indicates degree of dispersion. P

indicates relative frequency.

Xi– AVE)2× P

Σ (

i=1

• Peak to peak (P-P)

Calculates the difference between the maximum and minimum values.

P–P= MAX– MIN

• Flutter (

σσ

σ/AVE)

σσ

Calculates flutter of the histogram. Flutter indicates degree of dispersion in percentage in relation to the average value.

AVE

× 100(%)

• Jitter 1 (

σ / AVE =

σσ

σ/T)

σσ

Constant T is used to calculate jitter 1 of the histogram. Jitter 1 indicates degree of dispersion in percentage in relation to constant T.

σ /T=

× 100(%)

• Jitter 2 (MELE, Maximum Effect Length Error)

Constant T is used to calculate jitter 2 of the histogram. X X-axis in the window. For details, refer to 1.6. X

means the value around which measured

center

values are distributed. Jitter 2 indicates deviation of the average value from X

indicates the center value of

center

in percentage

in relation with constant T.

ME LE=

| AVE–X

CENTER

× 100(%)

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1-7

1.5 Setting the Acquisition Conditions for Input Signal to be Measured

Input Coupling ≡For operating procedure, refer to 6.1≡

When you want to measure only (AC components) of the input signal or only the signal overlapping with the specified DC voltage, measurement can be facilitated if DC components are removed from the signal. In other cases, you may want to measure all the AC and DC components of the input signal. In these cases, an appropriate input coupling can be selected. The following input coupling methods are available.

AC coupling

The signal is input to the amplifier through a capacitor. AC coupling is used to measure only the amplitude of the input signal by removing DC components or measure only the signal which overlaps the specified DC voltage.

Input terminal

DC coupling

The signal is input directly to the amplifier. DC coupling is used to measure all the AC and DC components of the input signal

Input terminal

Input amplifier

Input Impedance ≡For operating procedure, refer to 6.1≡

To reduce attenuation or distortion of the signal to be measured, an input impedance can be selected from 50 Ω and 1 MΩ to match the output impedance of the source of the signal.

Measurement Block

The instrument carries out a series of processes, from measurement to data processing and display, repeatedly. The minimum block of each series of processes is called “measurement block”. When the number of samples (number of data items) for each series is assumed to be N, each series of processes (measurement, processing and display of N samples) is called “one-block measurement”. Samples S1, S2, S3 to SN within the measurement block are measured as shown below by sampling pulses P1, P2, P3 to PN generated at the specified sampling intervals. (For setting the sampling intervals, refer to page 1-10.)

1-8

Input signal

Sampling pulse

When the period of the input signal is longer than the sampling interval

1 block 1 block

Measurement block Measurement block

S1 S2 S3 SN

P1 P2 P3 P4 P2 P3 P4

Sampling interval

Data processing,

display

Preparation

for measurement

S1 S2 S3

IM 704210-01E

Half of the amplitude

Amplitude

(Input signal)

Trigger level is set

Measurement block

A trigger is caused.

Trigger level

1.5 Setting the Acquisition Conditions for Input Signal to be Measured

When the period of the input signal is shorter than the sampling interval

Preparation

for measurement

Input signal

Sampling pulse

1 block

Measurement block

S2 S3 S4 SN S1 S2 S3 S4

P1 P2 P3 P4 P2 P3 P4

Sampling interval

Data processing,

display

Trigger Mode/Trigger Level ≡For operating procedure, refer to 6.1≡

The instrument allows the user to specify the level at which measurement is to be carried out. This level is called trigger level.

Single auto trigger

The center level of the amplitude of the input signal is set as the trigger level automatically during the cycle just before the first measurement block. This trigger level will be used for all the subsequent measurement blocks.

Repeat auto trigger

The center level of the amplitude of the input signal is set as the trigger level automatically during the cycle just before each measurement block. Unlike the single auto trigger, the trigger level is set for each measurement block.

1 block

Measurement block

Functions

P1PN

Manual trigger

The level set using the rotary knob or front panel keys is set as the trigger level.

Gate ≡For operating procedure, refer to 6.2≡

The instrument allows the user to specify the size of measurement block. Measurement can be carried out as many as the specified number of events or during the specified gating time (i.e. while the gate is open). Three types of gate are available.

Event gate

Each sampling is called an event. For instance, one measurement of the period of the input signal is counted as one event. Up to 32,000 events (16,000 events for duty ratio/phase difference measurement) can be set in the case of time stamp mode and up to 99,999,999 events can be set in the case of hardware histogram mode, within 320 seconds following the arming (see the following page).

Time gate

Gating time of up to 10 seconds can be set. However, the maximum number of events allowed for the sampling mode must not be exceeded.

External gate

The external arming input terminal (EXT ARM IN) is used to open/close the gate(See the

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following page). The gate can be opened for up to 320 seconds, as long as the maximum number of events allowed for the sampling mode is not exceeded. In addition, it is possible to select whether to open the gate using the positive or negative edge of the external arming signal.

1-9

1.5 Setting the Acquisition Conditions for Input Signal to be Measured

Sample Size (Number of Events)≡For operating procedure, refer to 6.2≡

The allowable number of measured data items to be acquired into the acquisition memory is called sample size. This setting is required if event gate is selected. Up to 32,000 events (16,000 events for duty ratio/phase difference measurement) can be set in the case of time stamp mode and up to 99,999,999 events can be set in the case of hardware histogram mode.

Sampling Interval ≡For operating procedure, refer to 6.2≡

The sampling interval is the interval at which a sample is acquired. A sampling pulse (see “Measurement Block”) is generated at sampling intervals, and measurement is carried out when the input signal satisfies the trigger conditions (trigger level, slope etc.) after the sampling pulse. The sampling interval can be set between approximately 71 ns (reciprocal of the maximum sampling rate 14 MS/s) and 4 ms in the case of time stamp mode. For hardware histogram mode, the sampling interval is fixed at approximately 71 ns.

Arming ≡For operating procedure, refer to 6.3≡

Measurement of a measurement block is started when arming is activated. Two arming methods are available: auto arming in which measurement starts immediately when the START key is pressed or START communication command is issued, and external arming in which measurement starts when the external arming signal is input.

Auto arming

Arming is activated automatically after the START key is pressed or START communication command is issued. For auto arming, the internal arming signal is used.

External arming

Arming is activated when the external arming signal is input to the EXT ARM IN terminal following start of measurement. It is possible to select whether to activate arming using the rising or falling edge of the external arming signal.

ArmingStart of measurement

Measurement

block

Arming Delay ≡For operating procedure, refer to 6.3≡

With the external arming method, it is possible to delay measurement until a certain time elapses or the specified number of events occur following activation of arming. The following two arming delay methods are available.

Time delay

Measurement starts after the specified time (up to 1 second) has elapsed.

Event delay

Measurement starts after the specified number of events (up to 30,000) have occurred.

1-10

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1.5 Setting the Acquisition Conditions for Input Signal to be Measured

Inhibit ≡For operating procedure, refer to 6.4≡

Measurement can be inhibited by inputting the inhibit signal to the INHIBIT IN terminal. This is also possible while the gate is open or during measurement following the arming delay. Measurement can be inhibited for up to 320 seconds. In addition, it is possible to select whether to inhibit measurement using the positive or negative edge of the inhibit signal.

Relation between the inhibit signal and gating

Mesurement is inhibited.

Inhibit signal

Functions

Gate

Input signal

Gate is open.

S1 S2 S3

Start of measurement

Not counted as an event during inhibition of measurement.

Not measured.

S4 S5

Measurement is resumed.

Relation between the inhibit signal and gating/external arming

Inhibit signal

Gate is open.

Gate

External arming

Input signal

S1 S2 S3

Start of measurement

Mesurement is inhibited.

Not measured.

S4 S5

Measurement is resumed.

Not counted as an event during inhibition of measurement.

Relation between the inhibit signal and gating/external arming/arming delay

Mesurement is inhibited.

Inhibit signal

Gate is open.

Gate

Arming delay

External arming

Not measured.

Input signal

S1 S2 S3

Start of measurement

Not counted as an event during inhibition of measurement.

S4 S5

Measurement is resumed.

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1-11

1.6 Displaying the Measured/Computed Data

Histogram Display ≡For operating procedure, refer to 7.1≡

A histogram of measured data is displayed for each measurement block to allow the user to observe data distribution. Although period, phase difference or duty ratio can be set for the X-axis and frequency for the Y-axis manually, they can be set automatically using the auto scaling function. The following items can be set manually.

•Center value of X-axis

• Span of X-axis

• Y-axis scale (linear or logarithmic scale)

• Maximum value of Y-axis

• Space between the center values of X-axis (This setting is required when you are using the multi-window function in hardware histogram mode.) For a description of the multi-window function, refer to “Multi-window” on this page.

Histogram displayed when time stamp mode is selected or when hardware histogram mode is selected and only one window is used (i.e. multi-window function is OFF)

A histogram is displayed according to the settings made for the above items. If a class has a time span, for instance, if the minimum and maximum values in the class are 505 ns and 515 ns, respectively, 510 ns will be treated as the class value, and samples in this class are all considered as 510 ns. If the measured values in this class are all the same, they will be treated as the class value. Each value given along the X-axis as shown below indicates either the class value or displacement. A histogram is created as the number of samples in each class are accumulated.

Y-axis scale (logarithmic scale is used in this example)

Maximum value of Y-axis

Y-axis

(frequency)

Class

Left-end value of X-axis

(negative displacement from

the center value of X-axis)

Span of X-axis (2 ns in this example)

Center value of X-axis

(Class value of

the center class)

X-axis (time)

Histogram displayed when hardware histogram mode is selected and more than two windows are used (i.e. multi-window function is ON)

Refer to “Multi-window” and “Panorama Display” given in this section.

Multi-window ≡For operating procedure, refer to 7.2≡

If data for a measurement block is distributed along more than two center values of X-axis, more than two histograms will be created. Although all the histograms can be displayed within one window, it is possible to set more than two windows to allow each histogram to be displayed in its own window. This function is called the multi-window function. Up to 16 windows can be set. An example of a window is shown in “Panorama Display” on the following page. Using the multi-window function in conjunction with the panorama display function enables the user to recognize easily which histogram is currently displayed.

Each bar is called a bin.

Right-end value of X-axis

(positive displacement from

the center value of X-axis)

1-12

IM 704210-01E

1.6 Displaying the Measured/Computed Data

Panorama Display ≡For operating procedure, refer to 7.3≡

A panorama bar is displayed at the top of the screen during hardware histogram mode. The panorama bar shows all the histograms of measured data. The histogram currently displayed in the window is enclosed by “ marks,” so that the user can easily understand which histogram is currently displayed.

Window 1 Window 2 Window 3 Window 4

Panorama bar

Functions

Maximum value of Y-axis

(frequency)

Left-end value of X-axis

(negative displacement from

the center value of X-axis)

Y-axis

Left-end value of the panorama bar

Center value of X-axis

mark

Right-end value of

the panorama bar

(Class value of

the center class)

Span of X-axis

(40 ns in this example)

X-axis (time)

Right-end value of X-axis

from the center value of X-axis)

Histogram Data Addition ≡For operating procedure, refer to 7.4≡

It is possible to add the histogram of each window specified using the SIZE touch key during multi-window setting, and display the resulting histogram in a single window. The frequency of the bin located at the center value of X-axis of each histogram is added, and then the frequency of each bin located on the left and right of that bin is similarly added. This enables comparison of data distribution between histograms and global statistical computation of all the histograms.

Histogram for window 1

Histogram for window 2

Resulting histogram

Window (Window 1 is displayed in this example)

(positive displacement

Time Variation Display ≡For operating procedure, refer to 7.5≡

During time stamp mode, measured values and time stamps are treated as data and acquired in the acquisition memory. The time variation display function uses this time-series data to display variation of measured values in relation to the elapsed time following the arming.

Span of Y-axis

(20 ns in this example)

(positive displacement from the

(measured value)

Y-axis

Center value

of Y-axis

IM 704210-01E

center value of Y-axis)

(negative displacement from the center value of Y-axis)

Minimum value

of X-axis

X-axis (elapsed time)

Maximum value of X-axis (positive displacement from the minimum value of X-axis) (Span: 400 µs in this example)

1-13

1.6 Displaying the Measured/Computed Data

List Display ≡For operating procedure, refer to 7.6≡

A list of measured values is displayed. This function enables the user to jump to the top or bottom data in the list, and set data numbers to locate/display the measured value of the desired data number. The contents of the list vary according to the selected sampling mode.

Time stamp mode

A list of time stamps and their measured values for the number of events/time range specified in gating setting (see 1.5) is displayed.

Time stamp Measured value

Data number

1 2 3 4 5 6 7 8 9

Hardware histogram mode

A list of measured values (class values of histogram) and their frequency within the span of Xaxis specified in histogram display setting is displayed.

The data number of the highlighted data is displayed.

Class value Frequency

Data number

74 75 76 77 78 79 80 81 82 83

The data number of the highlighted data is displayed.

Statistics Display ≡For operating procedure, refer to 7.7 and 7.8≡

A list of statistic values is displayed. For statistical computation items, computation and computation area, refer to 1.4, “Computation”. The contents of the list vary according to the selected sampling mode.

Time stamp mode

No computation is carried out for jitter 1 (σ/T) and jitter 2 (MELE), so no results are displayed.

Statistical computation item Statistic value Statistical computation area

(The entire window is used for statistical computation in this example. “MARKER” will be displayed if the area enclosed by the markers is used for statistical computation.)

1-14

No computation is carried out for jitter 1 and jitter 2.

IM 704210-01E

Hardware histogram mode

A bar graph indicating the standard deviation (σ) is displayed below the list. The bar graph range (maximum value) can be selected (see below).

Statistical computation item Statistic value

Bar graph range (maximum value)

Statistics values during histogram display

The statistical computation area and items (two items) are displayed while a histogram is displayed. It is possible to select statistical computation items to be displayed.

1.6 Displaying the Measured/Computed Data

Statistical computation area

(The area enclosed by the markers is used for statistical computation in this example. “WINDOW” will be displayed if the entire window is used for statistical computation.)

Standard deviation (σ) is displayed in bar graph.

Functions

• Time stamp mode

Selected statistical

computation items

• Hardware histogram mode

Selects statistical computation items to be displayed. (This menu is displayed when the STAT touch key located at the bottom of the screen is pressed.)

Statistical computation area (The entire window is used for statistical computation in this example. “MARKER” will be displayed if the area enclosed by the markers is used for statistical computation.)

Selects statistical computation items to be displayed.

(This menu is displayed when the STAT touch key located at the bottom of the screen is pressed.)

IM 704210-01E

Selected statistical computation items

Statistical computation area

markers is used for statistical computation in this example. “WINDOW” will be displayed if the entire window is used for statistical computation.)

(The area enclosed by the

* “Touch key” is a key displayed on the LCD. Touching it with your finger will execute a certain

operation.

1-15

1.7 Other Functions

External Signal Input/Output (Rear Panel)

The following input and output terminals (BNC) are provided on the rear panel, to communicate with external devices. For location of each terminal, refer to 2.2, “Rear Panel”.

Reference input terminal (REFERENCE IN)

Although the instrument has an internal reference clock to be used for measurements, it is possible to input an external signal (10 MHz) to this terminal and use it as the reference clock.

Reference output terminal (REFERENCE OUT)

The internal reference clock or external reference clock can be sent through a 10-MHz band pass filter and then output from this terminal.

Monitor output terminals (MONITOR OUT CHA, CHB)

Signals input to the input terminals can be output directly from these terminals. They can be used for observation of a waveform during phase correction of a probe.

External arming input/inhibit input terminals (EXT ARM IN, INHIBIT IN)

These signals are used to control measurement functions of the instrument. For the function of external arming or inhibit signal, refer to 1.5, “Setting the Acquisition Conditions for Input Signal to be Measured”.

≡For operating procedure, refer to 10.2 and 10.3≡

Communications ≡Refer to the GP-IB Interface User’s Manual (IM704210-12E)≡

The instrument is equipped with a GP-IB interface as a standard feature. Use of this interface enables transmission of measured data to a personal computer to analyze it, and enables control of this instrument using an external controller.

Storing and Recalling of Set-up Information

Up to 10 sets of set-up information can be stored in the internal non-volatile memory. It is also possible to recall the stored set-up information to set up the instrument. This function is useful when you want to use the set-up information repeatedly.

Saving and Loading Data from a Floppy Disk

The instrument is equipped with a floppy disk drive. This enables the user to save set-up information and measured data to a floppy disk or load from it, whenever it is required. In addition, it is also possible to save the screen image data in TIFF format. This enables the user to import the saved screen image data to a document created by a DTP software application, to create a report.

≡For operating procedure, refer to Chapter 8≡

≡For operating procedure, refer to Chapter 9≡

Auto Loading of Set-up Information ≡For operating procedure, refer to 9.3≡

Turning ON the power after a floppy disk containing the set-up information is inserted into the floppy disk drive will load the set-up information to the instrument automatically. This is useful to restore the set-up information in the instrument.

Plotter Output ≡For operating procedure, refer to 10.1≡

Measured data can be output to an external plotter via the GP-IB interface.

Initialization of Set-up Information ≡For operating procedure, refer to 10.4≡

The set-up information can be reset to the factory settings (default settings).

Calibration ≡For operating procedure, refer to 10.5≡

Calibration of the offset voltage of each input amplifier and conversion factor of each T/V converter can be carried out using the internal calibration signal.

1-16

IM 704210-01E

Numeric Value Setting ≡For operating procedure, refer to 4.2≡

A numerical value can be entered using the ten-key (displayed when the KEYBOARD key is pressed) while a small ten-key icon is displayed on the left of the currently highlighted touch key. This is useful when you need to set a value consisting of several digits. If a small icon is displayed, a numerical value can be entered using the rotary knob.

Small rotary knob icon

Small ten-key icon

Contrast ≡For operating procedure, refer to 10.6≡

The contrast of the LCD display can be adjusted. Adjust it so that it suits the environment in which the instrument is used.

Touch-key Sound ≡For operating procedure, refer to 10.7≡

A beeping sound is heard when a touch key is pressed (touched) or an error occurs. It is possible to disable this beep.

1.7 Other Functions

Functions

Error Logging ≡For operating procedure, refer to 11.3≡

“!” mark appears in the upper right corner of the screen if a data error such as overflow of measured data occurs or a communication error occurs. Error messages are recorded in the error logging window, to enable the user to observe them later.

Self-test ≡For operating procedure, refer to 11.4≡

In case of a problem, a self-test can be carried out to enable the user to check the problem before contacting YOKOGAWA. This function enables inspection of the memory, PC board and display.

IM 704210-01E

1-17

2.1 Front Panel

Top menu keys

Displays the corresponding top menu.

• MODE key

Displays the sampling mode selection screen. (See 5.1.)

• FUNCTION key

Displays menus for setting/selecting the measurement function, input channel and slope. (See chapter 5.)

• DISPLAY key

Displays menus for setting/selecting the display format, window axis, markers, calculation. (See chapter 7.)

• SAMPLE key

Displays menus for setting/selecting the gate, sample size, sampling interval, arming and inhibit. (See chapters 6.2, 6.3 and 6.4.)

• INPUT key

Displays menus for setting/selecting the input coupling, input impedance, trigger mode and trigger level. (See chapter 6.1.)

• UTILITY key

Displays menus for setting/selecting initialization of set-up information, storing and recalling of data in the internal memory, configuration (communication, contrast, date/time, touch key sound), self-test, saving and loading of data from a floppy disk, reference clock, calibration and initialization of a floppy disk. Also displays the error logging window and version No. (ROM version). (See 3.7, chapters 8,9, and 10, and 11.3 to 11.5.)

LCD display

(Touch screen)

Touch key

Press the area enclosed by to make various

Rotary knob

Sets a numerical value, moves markers and selects a file. (See 4.2, chapters 7 and 9.)

settings and selections.

100ps resolution 14MS/s TIME INTERVAL ANALYZER

Arrow keys

Moves from one digit to another digit during setting of a numerical value. Also

MODE

used as a back space key (<). (See 4.2.)

FUNCTION

SINGLE key

Carries out measurement

DISPLAY

SAMPLE

INPUT

UTILITY

POWER

SINGLE START STOP

COPY LOCAL

50 5Vrms 1M 40Vpk

REMOTE

KEY BOARD

only once. (See 4.1.)

Measurement indicator

Lights up during acquisition of measured data.

START/STOP key

Starts/stops continuous measurement. (See 4.1.)

LOCAL key

Cancels remote control (REMOTE indicator lights up during remote control mode). Refer to the GP-IB Interface User’s Manual (IM704210-12E).

COPY key

Saves the screen image data to a floppy disk/outputs the screen image data to an external plotter.

Power switch

(See 3.4.)

Access indicator

Blinks while the floppy disk drive is in use.

Eject button

Used to remove the floppy disk.(See 9.1.)

Floppy disk drive

(See 9.6 and 10.1.)

KEYBOARD key

Displays a ten-key (only when a ten-key icon is displayed on the left of a touch key).(See 4.2.)

CHA/CHB input indicator

Blinks while the signal is input and a trigger is caused.

CHA/CHB input terminal

Connect the input signal cables to these terminals. (See 3.5.)

Name and Use of Each Part

IM 704210-01E

2-1

2.2 Rear Panel

Adjustment hole for reference clock frequency

Used to adjust the time base. (See 11.5.)

Reference input terminal

The external reference clock is input to this terminal. (See 10.2.)

Reference output terminal

The reference clock is output from this terminal. (See 10.2.)

REF

ADJUST

REFERENCE

IN OUT

GP-IB ( IEEE488 )

WARNING

It is dangerous to operate this instrum ent outside its environmental specificati ons. Refer to manual.

(50 )10MHz 1Vp-p 10MHz 1Vp-p

CHA/CHB monitor output terminal

Input signals are output from these terminals. (See 10.3.)

MONITOR OUT

CH A CH B

(50 )

External arming input terminal (shared with the external gating input)

(See 6.2 and 6.3.)

Inhibit input terminal

(See 6.4.)

CIRCUIT

EXT ARM INHIBIT

IN IN

BREAKER

250V AC 3A

Circuit breaker

( TTL ) ( TTL )

(See 11.7 for the resetting method.)

Power cord connector

The power cord is connected

100 - 240V AC

125VA MAX 50/60Hz

to this connector. (See 3.3.)

Name plate

Refer to this name plate when checking the contents of the package. (See page 2.)

Vent

WARNING plate

holes

Safety Precautions. (See page 4.) Usage Precautions. (See 3.1.)

GP-IB connector

Used to connect the instrument to an external device (e.g. personal computer). Refer to the GP-IB Interface User’s Manual (IM704210-12E).

2-2

IM 704210-01E

3.1 Usage Precautions

Safety precautions

• Be sure to read through the safety precautions given on page 4 of this manual before starting to use the instrument.

• Never remove the instrument’s casing. The unit contains extremely hazardous high-voltage components. Consult your nearest Yokogawa representative (see listing on rear cover) if the instrument requires maintenance or adjustment.

• If the instrument emits smoke or unusual odors, or in any way behaves abnormally immediately turn OFF the power switch and unplug the power cord from the outlet. Then consult your nearest Yokogawa representative for assistance.

• If the cooling fan stops during operation, the instrument will display the error message shown below. When you see this message, turn OFF the power immediately. The fan (on the rear panel) may be jammed; check for and remove any obstructions, then restart. If the same error recurs, turn OFF the power and contact your nearest Yokogawa representative.

• Never rest any objects on the power cord. Keep the cord clear of hot objects at all times. When unplugging the power cord, pull on the plug area - never pull on the cord itself. If the cord is damaged, contact your dealer and obtain a replacement. (Quote the part number indicated on page 2 of this manual.)

Before Starting Measurement

Handling Precautions

• Never place liquid-filled containers or other potentially damaging objects on top of the instrument.

• Avoid subjecting the instrument to vibration and strong impacts, as these can cause hardware damage. Be especially careful if the instrument is equipped with a floppy disk drive. Also note that any impact to terminals or connecting cables may cause electrical noise to the output signal.

• Always keep terminals clear of electrically charged objects. Electrostatic at the terminals may cause internal damage.

• If you do not plan to use the instrument for an extended period, unplug the power cord.

• If you need to lift and move the instrument, first disconnect the power cord and connecting cables. Lift and carry by the handle, as shown. The instrument weighs approximately 5kg.

IM 704210-01E

• Never touch the LCD (touch screen) with pointed objects. Contact with sharp objects may cause damage.

• Never clean plastic parts with benzene or other such solvents, as these may cause discoloration. To clean the case or panel, wipe lightly with a soft dry cloth.

3-1

3.2 Installing the Instrument

You should never run the instrument in an upright position, with the fan vent facing downward. If the instrument malfunctions while in this position, heat escaping from the vent may cause a fire. If you really need to operate the instrument in this position, place a metal plate or flame-retardant barrier (grade UL94-1 or higher) beneath it.

Installation Conditions

Be sure to install the instrument in a location that meets the environmental conditions described below.

WARNING

Ambient temperature and humidity

Ambient temperature and humidity during operation should be within the following limits.

• Temperature: 5°C to 40°C For high accurate measurement: 23±2ºC

• Humidity: 20% to 80% RH; no condensation For high accurate measurement: 50±10% RH

Note

Condensation may occur when the instrument is moved from a cold, dry location to a warm, humid one or when there is a rapid change in ambient temperature. If liquid condenses on the instrument, allow the instrument to stand for at least one hour under stable ambient conditions before using.

Well-ventilated location

Vent holes are situated on the top and bottom of the instrument. In addition, vent holes for the cooling fans are also situated in the rear panel. To prevent a rise in the internal temperature, the vent holes should not be blocked and sufficient clearance should be maintained around them.

10cm

or more

3-2

IM 704210-01E

Installation Position

3.2 Installing the Instrument

Install the instrument in a location that is:

• Away from direct sunlight and other heat sources.

• Away from oily smoke, steam, dust, corrosive gas, and other such contaminants.

• Away from strong magnetic fields.

• Away from high-voltage equipment and power lines.

• Away from mechanical vibrations.

• Stable surface.

Place the instrument in a horizontal position or tilted using the stand, as shown below. To install in the tilted position, pull the instrument’s stand forward until it locks into place at right angles with the bottom panel. If the surface is slippery, you should also attach rubber feet (standard accessory) to the instrument’s rear legs. To retract the stand, push it inwards at both ends while moving it back to its original position.

Before Starting Measurement

Rack Mounting

It is possible to mount the instrument on an optional rack. For mounting instructions, refer to the user’s manual supplied with the kit. The following rack mount kits are available.

Name Model Specification

Rack Mount Kit 751533-E3 EIA Single Mount Rack Mount Kit 751534-E3 EIA Dual Mount Rack Mount Kit 751533-J3 JIS Single Mount Rack Mount Kit 751534-J3 JIS Dual Mount

IM 704210-01E

3-3

3.3 Connecting the Power Cord

Before Connecting the Power

Make sure that you observe the following points before connecting the power. Failure to do so may cause electric shock or damage to the instrument.

• Make certain that the power voltage of your outlet matches the instrument’s rated power

voltage.

• Be sure that the instrument’s power switch is OFF.

• Be sure that your power cord has been supplied by Yokogawa specifically for use with

this instrument. Use of an inappropriate cord may present a shock or fire hazard.

• Always use protective ground to prevent electric shock. Connect the instrument’s power

cord to a 3-pin AC outlet with grounding terminal.

• Never use an extension cord that does not have a protective grounding, otherwise the

protection feature will be invalidated.

Connecting the Power Cord

1. Make sure that the POWER switch located on the front panel is turned OFF.

2. Plug the power cord into the power connector socket on the rear panel of the instrument.

3. Plug the other end of the power cord into a 3-pin AC outlet that meets the following

conditions.

WARNING

Rated supply voltage: 100 to 240 VAC Permitted voltage range: 90 to 264 VAC Rated power frequency: 50/60 Hz Permitted power frequency range: 48 to 63 Hz Maximum power consumption: 125 VA

3-pin AC outlet

Power cord (supplied with the instrument)

3-4

IM 704210-01E

3.4 Turning the Power Switch ON/OFF

Items to be Checked Before Turning ON the Power

• Check that the instrument is installed correctly as instructed in 3.2 “Installing the Instrument”.

• Check that the power cord is connected correctly as shown in 3.3 “Connecting the Power Cord”.

Location of the Power Switch and Turning it ON/OFF.

The power switch is located at the lower left of the front panel. To turn the power ON, press the switch once. To turn the power OFF, press it again.

OFF ON

Power-ON Initialization

When the power is turned ON, the instrument executes the following initialization checks. Panel keys remain disabled during these checks. When initialization is completed, the display format screen (the screen which is displayed when the DISPLAY key is pressed) will be displayed.

• ROM Check: Checks the ROM.

• DRAM Check: Checks the DRAM.

• Backup Check: Checks the calibration data.

Before Starting Measurement

Note

If the instrument fails to start up as described, turn the power switch OFF and then check the following points.

• Check whether the power cord is plugged in properly.

• Check whether the correct voltage is being supplied from the AC outlet. (Refer to 3.3)

• Check whether the circuit breaker is ON. (Refer to 11.7.) If the above checks do not resolve the problem, contact your nearest YOKOGAWA representative listed on the rear cover of this manual.

For Accurate Measurement

Turn the power switches ON and allow the unit to warm up for at least 30 minutes. Make sure that the installation conditions given in 3.2 are met.

Power-OFF Operation

The set-up information made prior to turning OFF the power will be retained even if the power is turned OFF. However, measured data will not be retained, so make sure that necessary data is saved to a floppy disk before turning the power OFF.

Note

The set-up information is backed up by a lithium battery. The battery lasts for approximately 10 years if it is used at an ambient temperature of 23ºC. When the battery approaches the end of its life, the instrument begins to display incorrect dates or times, or may fail to save or recall measured data correctly. If any such problem is noticed, execute a self-test as described in 11.4, “Executing the Self-test”. If “LOW BATTERY” warning message is displayed during the self-test, the battery needs to be replaced immediately. The battery cannot be replaced by the user, so contact the nearest YOKOGAWA representative listed on the rear cover of this manual.

IM 704210-01E

3-5

3.5 Connecting the Cables/Probes

Location of Input Terminals

The input terminals are located at the lower right of the front panel. Use cables with a BNC connector or use probes.

Input Specifications

Connector type : BNC Number of channels : 2 Input impedance : 50 Ω/1 MΩ, 20 pF (Typical *) Maximum input voltage:

• When input impedance is 50 Ω : 5 V

rms

• When input impedance is 1 MΩ:

• 40 V (DC+AC

• {3.5/f + 5}V (DC + AC

) when DC ≤ input frequency ≤ 100 kHz

peak

) when 100 kHz ≤ input frequency ≤ 100 MHz, “ f ” indicates

peak

frequency in MHz.

Ground: Connected to the case’s ground.

* Typical values are described in terms of typical of average performance. However, they cannot

be guaranteed.

CAUTION

Never apply a voltage exceeding the maximum input voltage to the input terminals. Damage to the input terminals may result.

Note

When you use a probe with this instrument for the first time, its phase must be corrected before use as described in 3.6, “Compensating a Probe (Carrying Out Phase Correction)”. If the phase is not corrected, the gain will not be constant across different frequencies. Phase correction must be carried out for each channel.

3-6

IM 704210-01E

3.6 Compensating a Probe (Carrying Out Phase Correction)

Items Required

The following items are required.

Calibration signal

• Frequency: 1 kHz

• Voltage: 1 V

• Waveform type: Square waveform

• Output impedance: 1 MΩ

• Recommended signal: CAL signal of the DL1540 digital oscilloscope (by YOKOGAWA)

Waveform monitor

• Frequency characteristic: DC to 100 MHz (attenuation point: -3 dB)

• Input coupling: DC

• Input impedance: Connect a 50 Ω terminator to the input terminal of the waveform monitor.

• Recommended monitor: DL1540 digital oscilloscope (by YOKOGAWA) + 50 Ω terminator (type: 700976, by YOKOGAWA)

The connecting and operating procedure for the recommended calibration signal and waveform monitor is described below.

Connecting the Calibration Signal and Waveform Monitor

p-p

Before Starting Measurement

CAUTION

• Never apply a voltage exceeding the maximum input voltage to the input terminals.

Damage to the input terminals may result.

• Never short-circuit the CAL signal output terminal of the DL1540 or the monitor output

terminals (MONITOR OUT) of this instrument. Never apply an external voltage to these terminals. Damage to the internal circuits may result.

Make sure that the power to both this instrument and DL1540 is turned OFF, then connect them as shown below.

1. Use a BNC cable to connect the MONITOR OUT (CHA/CHB) terminal to an input terminal

of the DL1540.

2. Connect the BNC connector of the probe to be calibrated to an input terminal of this

instrument.

3. Connect the other end of probe to the CAL signal output terminal of the DL1540, and the

grounding wire of the probe to the function grounding terminal of this instrument.

MONITOR OUT terminal

This instrument

BNC cable

DL1540

50Ω terminator Input terminal

IM 704210-01E

Phase correction hole

CAL signal output terminal

Function grounding terminal

3-7

3.6 Compensating a Probe (Carrying Out Phase Correction)

Procedure

Explanation

1. Turn ON the power to both this instrument and DL1540.

2. Set the waveform acquisition conditions of the DL1540 so that the waveform of approximately two periods is observed clearly. For setting method, refer to the User’s Manual of the DL1540.

3. Insert a screwdriver into the probe’s phase correction hole, and turn the variable capacitor to produce correct square waves on the waveform monitor.

Necessity of probe phase correction

If the probe’s input capacitance is out of the appropriate range, the gain will not be constant across different frequencies, preventing input of the correct waveforms. The input capacitance varies depending on the probe used, so the variable capacitor (trimmer) provided on the probe must be adjusted. This is called phase correction. Phase correction must be performed when the probe is to be used for the first time. Moreover, the appropriate input capacitance varies depending on which channel is used, so phase correction is required when the probe is switched from one channel to another.

Calibration signal

Waveform type: Square waveform Frequency: 1 kHz Voltage: 1 V

p-p

Waveform differences

Correct waveform Over-compensated (gain is

too high at high frequency)

Under-compensated (gain is too low at high frequency)

3-8

IM 704210-01E

3.7 Setting the Date and Time

Procedure

MODE

FUNCTION

DISPLAY

SAMPLE

INPUT

UTILITY

• To exit from the current menu, press any of the top menu keys or press the ESC touch key displayed on the screen.

UTILITY Top menu

Before Starting Measurement

Used to display the CONFIG menu.

1. Press the UTILITY key to display the UTILITY top menu.

2. Press the CONFIG touch key to display the CONFIG menu.

Selecting the DATE/TIME menu

3. Press the DATE/TIME touch key to display the DATE/TIME menu.

Setting the date

4. Press the DATE touch key to highlight the key.

5. Use the rotary knob and arrow keys to set the desired date.

Setting the time

6. Press the TIME touch key to highlight the key.

7. Use the rotary knob and arrow keys to set the desired time.

Confirming the date/time

8. Press the EXEC touch key to confirm the date and time.

CONFIG menu DATE/TIME menu

Used to set the date.

Used to set the time.

Used to display the DATE/TIME menu.

Used to confirm the settings (date/time)

IM 704210-01E

3-9

3.7 Setting the Date and Time

Explanation

Setting the date

Set the date in order of year, month and day.

• Year Set the last two digits of the year. For instance, set “99” for 1999, “00” for 2000, “01” for 2001 and so on.

• Month Setting range: 01 to 12

• Day Setting range: 01 to 31

Setting the time

Set the time in order of hour and minute.

• Hour Setting range: 00 to 23

• Minute Setting range: 00 to 59

It is not possible to set or display seconds by the same method. However, “00” second is set when the EXEC touch key is pressed.

Display location of date/time

The date and time are displayed at the top of the screen.

Date and time are displayed.

(This example shows July 4, 1996, 4.31 a.m.)

MODE

3-10

IM 704210-01E

4.1 Starting/Stopping Acquisition of a Measuring Input Signal

Procedure

MODE

FUNCTION

DISPLAY

Explanation

SAMPLE

INPUT

UTILITY

SINGLE START STOP

KEY BOARD

Measurement indicator

COPY LOCAL

When carrying out measurement continuously

•Starting measurement

Press the START key to start measurement. The measurement indicator will light up.

• Stopping measurement

Press the STOP key to stop measurement. The measurement indicator will go out.

When carrying out measurement only once

Press the SINGLE key. Measurement will stop automatically when measurement has been carried out once. The measurement indicator will light up while measurement is in progress, and will go out when measurement is complete.

Continuous measurement

Once measurement is started, measurement will be carried out repeatedly until the STOP key is pressed.

Common Operations

IM 704210-01E

Single measurement

Measurement is carried out each time the SINGLE key is pressed.

Note

• Each series of processes (measurement, data processing and display) is called a block (see 1.5).

• If the START (or SINGLE) key is pressed while the current one-block measurement is in progress, measured data acquired after the START (or SINGLE) key is pressed will be processed (i.e. displayed/ computed).

• If the STOP key is pressed while the current one-block measurement is in progress, the data measured until the STOP key is pressed will be acquired and measurement will be stopped.

• An indicator is provided above each input terminal (CHA, CHB). The indicator should blink while a signal is input to the corresponding input terminal. If the indicator does not blink, check whether the trigger level is correct(see 6.1), whether the input cable is connected properly, or whether the signal is present. If the indicator does not blink even if a correct signal is input to the terminal, the instrument may be faulty. Contact your nearest YOKOGAWA representative listed on the rear cover of this manual.

4-1

4.2 Setting Numerical Values

Procedure

MODE

FUNCTION

DISPLAY

SAMPLE

INPUT

UTILITY

≡≡

≡For a description of the function, refer to 1.7

≡≡

• To exit from the current menu, press any of the top menu keys or press the ESC touch key displayed on the screen.

Numerical Input Menu

SINGLE START STOP

KEY BOARD

COPY LOCAL

Setting a numerical value using the ten-key

A numerical value can be entered using the ten-key while a small ten-key icon is displayed on the left of the currently highlighted touch key.

1. Press the KEYBOARD key to display the ten-key.

2. Press the ten-key to enter the desired numerical value.

3. To correct the entered numerical value, press the < key. Each time the < key is pressed, the

value located on the left of the cursor will be deleted and the cursor moves to the left one digit.

4. After the unwanted value is deleted, use the ten-key to enter the correct value.

5. After the desired value has been entered, press the desired unit key then return touch key (see

below). The ten-key will disappear, indicating the value has been confirmed.

≡≡

≡

≡≡

4-2

Setting a numerical value using the rotary knob

A numerical value can be entered using the rotary knob if the highlighted touch key indicates a numerical item and a small rotary knob icon is displayed on the left of that highlighted touch key.

6. Press the arrow keys to move the cursor to the desired digit.

7. Turn the rotary knob to select the desired value. The selection of the value will be

confirmed.

8. To correct the entered value, carry out steps 6 and 7.

The following example shows how to set the center value of X-axis.

The cursor can be moved to the right and left using the > and < arrow keys respectively.

The value located at the cursor is not highlighted.

IM 704210-01E

4.2 Setting Numerical Values

Explanation

Setting a numerical value using the ten-key.

• The following six types of ten-key are available. The displayed ten-key varies according to the setting item.

• If a key (touch key, KEYBOARD key, > arrow key) is pressed or the rotary knob is turned before any of the following keys is pressed, the entered value will not be confirmed, but it will be canceled.

Note

• If an attempt is made to set a value higher than the allowed resolution for the item, the value will be

rounded off.

• If an attempt is made to set a value exceeding the maximum value for the item, the maximum value will

be set. Similarly, if an attempt is made to set a value below the minimum value for the item, the minimum value will be set.

Common Operations

Setting a numerical value using the rotary knob

• Only numerical values can be set using the rotary knob, whilst numerical values and unit can be set using the ten-key.

• The cursor will move to the next higher digit when the value at the cursor increases from 9 to 0. Similarly, the cursor will move to the next lower digit when the value at the cursor decreases from 0 to 9.

Note

It is possible to reset the set value to the default setting (factory setting). For details, refer to 10.4 Note that this will reset all the set values to the default settings.

IM 704210-01E

4-3

5.1 Selecting the Sampling Mode

Procedure

MODE

FUNCTION

DISPLAY

SAMPLE

INPUT

UTILITY

≡≡

≡For a description of the function, refer to 1.2

≡≡

MODE Top Menu

Selects the time stamp mode.

Selects the hardware histogram mode.

1. Press the MODE key to display the MODE top menu.

Selecting the time stamp mode

2. Press the TIME STAMP touch key to highlight TIME STAMP.

Selecting the hardware histogram mode

3. After step 1, Press the HARDWARE HIST touch key to highlight HARDWARE HIST.

≡≡

≡

≡≡

Setting the Sampling Mode and Measurement Function (Item)

Explanation

Selecting the sampling mode

Either time stamp mode or hardware histogram mode can be selected.

• Time stamp mode: The measured value and time stamp are acquired.

• Hardware histogram mode: The measured value and its occurrence frequency are acquired.

T.STMP is displayed during time stamp mode, and H.HIST is displayed during hardware histogram mode.

IM 704210-01E

5-1

5.2 Setting Period Measurement

Procedure

FUNCTION

MODE

DISPLAY

SAMPLE

INPUT

UTILITY

≡≡

≡For a description of the function, refer to 1.3

≡≡

• To exit from the current menu, press any of the top menu keys or press the ESC touch key displayed on the screen.

FUNCTION Top Menu

Displays the measurement function menu.

Selects the channel to be used for measurement.

Selects the slope (edge).

1. Press the FUNCTION key to display the FUNCTION top menu.

Selecting period measurement

2. Press the FUNC touch key to display the measurement function menu.

3. Press the PERIOD touch key to select period measurement. The screen will return to the

FUNCTION top menu when the PERIOD touch key is pressed.

≡≡

≡

≡≡

Selecting the channel to be used for measurement

4. Press the CHA/CHB touch key to select the desired channel (CHA or CHB). The

highlighted channel (CHA or CHB) will be selected.

Selecting the slope (edge)

5. Press the SLOPE touch key to highlight SLOPE.

6. Turn the rotary knob to select the desired slope type.

Measurement function menu

Selects period measurement.

These keys are displayed for time stamp mode only.

5-2

IM 704210-01E

5.2 Setting Period Measurement

Explanation

Measurement range

Measurement range varies according to the selected sampling mode.

• Time stamp mode: 30 ns to 100 ms

• Hardware histogram mode: 30 ns to 3.2 µs

Selecting the channel to be used for measurement

Select either CHA or CHB.

Selecting the slope (edge)

Select the desired slope from the following.

: Measures the time from a rising edge to the next rising edge of the input signal.

•

• : Measures the time from a falling edge to the next falling edge of the input signal.

Setting the Sampling Mode and Measurement Function (Item)

IM 704210-01E

5-3

5.3 Setting Time Interval Measurement

Procedure

MODE

FUNCTION

DISPLAY

SAMPLE

INPUT

UTILITY

≡≡

≡For a description of the function, refer to 1.3

≡≡

• To exit from the current menu, press any of the top menu keys or press the ESC touch key displayed on the screen.

FUNCTION Top Menu

Displays the measurement function menu.

Selects the pattern.

Selects the slope (edge).

1. Press the FUNCTION key to display the FUNCTION top menu.

Selecting time interval measurement

2. Press the FUNC touch key to display the measurement function menu.

3. Press the TIME INTERVAL touch key to select time interval measurement. The screen will

return to the FUNCTION top menu when the TIME INTERVAL touch key is pressed.

≡≡

≡

≡≡

Explanation

Selecting the pattern

4. Press the CHA/CHB touch key to select the desired pattern (CHA-B or CHA-B-A). The

highlighted pattern (CHA-B or CHA-B-A) will be selected.

Selecting the slope (edge)

5. Press the SLOPE touch key to highlight SLOPE.

6. Turn the rotary knob to select the desired slope type.

Measurement function menu

Selects period measurement.

These keys are displayed for time stamp mode only.

Measurement range

Measurement range varies according to the selected sampling mode and pattern.

• Time stamp mode:

• CHA-B pattern : 5 ns to 100 ms

• CHA-B-A pattern : 30 ns to 100 ms (for both A to B and B to A)

• Hardware histogram mode:

• CHA-B pattern : 5 ns to 3.2 µs

• CHA-B-A pattern : 30 ns to 3.2 µs (for both A to B and B to A)

5-4

IM 704210-01E

5.3 Setting Time Interval Measurement

Selecting the pattern

Select CHA-B or CHA-B-A.

• CHA-B: Measures A-to-B interval.

• CHA-B-A: Measures A-to-B-to-A interval. It is not possible to distinguish the measured data of A-to-B from that of B-to-A.

Selecting the slope (edge)

Slope (edge) types which can be selected vary according to the selected pattern.

• CHA-B: Select the desired slope from the following.

•

: Measures the interval from a rising edge of the CHA signal (i.e. the signal which

is input to the CHA) to the first rising edge of the CHB signal (i.e. the signal which is input to the CHB).

•

: Measures the interval from a rising edge of the CHA signal to the first falling

edge of the CHB signal.

•

: Measures the interval from a falling edge of the CHA signal to the first rising

edge of the CHB signal.

•

: Measures the interval from a falling edge of the CHA signal to the first falling

edge of the CHB signal.

•

: Measures the interval from a rising or falling edge of the CHA signal to the first

rising edge of the CHB signal. It is not possible to

•

distinguish

: Measures the interval from a rising or falling edge of the CHA signal to the to

from

the first falling edge of the CHB signal. It is not possible to distinguish

from

Note

Measurement can be carried out continuously if the period of the CHA signal is 71 ns or more and the interval between an edge of the CHB signal and subsequent edge of the CHA signal is 30 ns or more.

Example

Measurement (t2) is carried out if the period of the CHA signal is 71 ns or more.

CHA

CHB

Measured

71 ns or more

Measured

30 ns or more

Measurement (t2) is not carried out but measurement (t3) is carried out if the period of the CHA signal is below 71 ns.

CHA

CHB

Measured

71 ns or more

Measured

30 ns or more

Setting the Sampling Mode and Measurement Function (Item)

• CHA-B-A: Select the desired slope from the following.

•

ABA

: Measures the interval from a rising edge of the CHA signal to the first rising

edge of the CHB signal, and the time interval from a rising edge of the CHB signal to the first subsequent rising edge of the CHA signal.

•

ABA

: Measures the interval from a rising edge of the CHA signal to the first falling

edge of the CHB signal, and the time interval from a falling edge of the CHB signal to the first subsequent rising edge of the CHA signal.

•

ABA

: Measures the interval from a falling edge of the CHA signal to the first rising

edge of the CHB signal, and the time interval from a rising edge of the CHB signal to the first subsequent falling edge of the CHA signal.

•

ABA

:A down B down A down: Measures the interval from a falling edge of the CHA

signal to the first rising edge of the CHB signal, and the time interval from a rising edge of the CHB signal to the first subsequent falling edge of the CHA signal.

Note

Measurement can be carried out continuously if the time interval (t1) from the CHA signal to the CHB signal is 71 ns or more.

ABA

Example

Measurement (t2) is carried out if t1 is 71 ns or more.

Measured

CHA

CHB

Measured

Measurement (t2) is not carried out but measurement (t3) is carried out if t1 is below 71 ns.

CHA

CHB

Measured

71 ns or more

Measured

IM 704210-01E

5-5

5.4 Setting Pulse Width Measurement

Procedure

MODE

FUNCTION

DISPLAY

SAMPLE

INPUT

UTILITY

≡≡

≡For a description of the function, refer to 1.3

≡≡

• To exit from the current menu, press any of the top menu keys or press the ESC touch key displayed on the screen.

FUNCTION Top Menu

Displays the measurement function menu.

Selects the channel to be used for measurement.

Selects a polarity.

1. Press the FUNCTION key to display the FUNCTION top menu.

Selecting pulse width measurement

2. Press the FUNC touch key to display the measurement function menu.

3. Press the PULSEWIDTH touch key to select pulse width measurement. The screen will

return to the FUNCTION top menu when the PULSEWIDTH touch key is pressed.

≡≡

≡

≡≡

Selecting the channel to be used for measurement

4. Press the CHA/CHB touch key to select the desired channel (CHA or CHB). The

highlighted channel (CHA or CHB) will be selected.

Selecting the polarity

5. Press the POLARITY touch key to highlight POLARITY.

6. Turn the rotary knob to select the desired polarity.

Measurement function menu

Selects pulse width measurement.

These keys are displayed for time stamp mode only.

5-6

IM 704210-01E

5.4 Setting Pulse Width Measurement

Explanation

Measurement range

Measurement range varies according to the selected sampling mode.

• Time stamp mode: 30 ns to 100 ms

• Hardware histogram mode: 30 ns to 3.2 µs

Selecting the channel to be used for measurement

Select either CHA or CHB.

Selecting the polarity

Select the desired polarity from the following.

: Measures the positive pulse width (i.e. time from a rising edge to the next falling edge).

•

• : Measures the negative pulse width (i.e. time from a falling edge to the next rising edge). : Measures both positive and negative pulse widths. The positive and negative measured

•

data can be displayed individually using the calculation menu of histogram display mode.

• 22T : If PW (the total time of a few continuous periods) is within a range of 22T ± 0.5T, PW

will be measured. This measurement can be selected only when time stamp mode has been selected. Constant T specified in 7.7 will be used as T.

Measured

Setting the Sampling Mode and Measurement Function (Item)

22T

Measured

Measured when within 22T 0.5T

Measured

Not measured when not within 22T ± 0.5T

Measured

Measured when within 22T ± 0.5T

IM 704210-01E

5-7

5.5 Setting Phase Difference Measurement

Procedure

MODE

FUNCTION

DISPLAY

SAMPLE

INPUT

UTILITY

≡≡

≡For a description of the function, refer to 1.3

≡≡

• To exit from the current menu, press any of the top menu keys or press the ESC touch key displayed on the screen.

FUNCTION Top Menu

Displays the measurement function menu.

CHA-B is always used as the pattern.

Selects the slope (edge).

1. Press the FUNCTION key to display the FUNCTION top menu.

Selecting phase difference measurement

2. Press the FUNC touch key to display the measurement function menu.

3. Press the PHASE touch key to select phase difference measurement. The screen will return

to the FUNCTION top menu when the PHASE touch key is pressed.

≡≡

≡

≡≡

Selecting the slope (edge)

4. Press the SLOPE touch key to highlight SLOPE.

5. Turn the rotary knob to select the desired slope type.

Measurement function menu

Selects phase difference measurement.

These keys are displayed for time stamp mode only.

5-8

IM 704210-01E

5.5 Setting Phase Difference Measurement

Explanation

Measurement range

Measurement range is shown below. This measurement is available only when time stamp mode has been selected. 0 to 360 deg

Selecting the slope (edge)

Select the desired slope from the following.

•

: Measures the time from a rising edge of the CHA signal to the first subsequent

rising edge of the CHB signal.

•

: Measures the time from a rising edge of the CHA signal to the first subsequent

falling edge of the CHB signal.

•

: Measures the time from a falling edge of the CHA signal to the first subsequent

rising edge of the CHB signal.

•

: Measures the time from a falling edge of the CHA signal to the first subsequent

falling edge of the CHB signal.

Example (Both channels A and B: rise)

CH A

Measuredt

Setting the Sampling Mode and Measurement Function (Item)

CH B

1[deg]=

× 360 2[deg]=

Phase difference

× 360Phase difference

Note

• Phase difference measurement is not available if hardware histogram mode has been selected.

• The time from a rising or falling edge of the CHA signal to the first subsequent edge of the CHB signal must be 71 ns or more, otherwise incorrect measurement will result.

• The time from a rising or falling edge of the CHB signal to the first subsequent edge of the CHA signal must be 30 ns or more, otherwise incorrect measurement will result.

•tp (phase difference) must be equal or smaller than t (period of the CHA signal), otherwise incorrect measurement will result.

IM 704210-01E

5-9

5.6 Setting Duty Ratio Measurement

Procedure

FUNCTION

MODE

DISPLAY

SAMPLE

INPUT

UTILITY

≡≡

≡For a description of the function, refer to 1.3

≡≡

• To exit from the current menu, press any of the top menu keys or press the ESC touch key displayed on the screen.

FUNCTION Top Menu

Displays the measurement function menu.

Selects the channel to be used for measurement.

Selects a polarity

1. Press the FUNCTION key to display the FUNCTION top menu.

Selecting duty ratio measurement

2. Press the FUNC touch key to display the measurement function menu.

3. Press the DUTY touch key to select duty ratio measurement. The screen will return to the

FUNCTION top menu when the DUTY touch key is pressed.

≡≡

≡

≡≡

Selecting the channel to be used for measurement

4. Press the CHA/CHB touch key to select the desired channel (CHA or CHB). The

highlighted channel (CHA or CHB) will be selected.

Selecting the polarity

5. Press the POLARITY touch key to highlight POLARITY.

6. Turn the rotary knob to select the desired polarity.

Measurement function menu

Selects duty ratio measurement.

These keys are displayed for time stamp mode only.

5-10

IM 704210-01E

5.6 Setting Duty Ratio Measurement

Explanation

Measurement range

Measurement range is shown below. This measurement is available only when time stamp mode has been selected. 0 to 99.999%

Selecting the channel to be used for measurement

Select either CHA or CHB.

Selecting the polarity

Select the desired polarity from the following.

: Measures the positive duty ratio (i.e. from a rising edge to the next falling edge).

•

• : Measures the negative duty ratio (i.e. from a falling edge to the next rising edge).

Example

Measurement t

CH A/ CH B

Duty ratio

Measurement t

[

× 100

Measurement t

Duty ratio

Measurement t

2[ ]=

× 100

Setting the Sampling Mode and Measurement Function (Item)

Note

• Duty ratio measurement is not available if hardware histogram mode has been selected.

•tp1 must be 71 ns or more in the above example, otherwise incorrect measurement will result. In addition, incorrect measurement may also result if “t1 – tp1” is below 30 ns. This also applies when negative polarity is selected.

IM 704210-01E

5-11

6.1 Setting the Input Coupling, Input Impedance,

Procedure

Trigger Mode and Trigger Level

≡≡

≡For a description of the function, refer to 1.5

Procedure

• To exit from the current menu, press any of the top menu keys or press the ESC touch key displayed on the screen.

INPUT Top Menu

MODE

≡≡

≡

≡≡

FUNCTION

DISPLAY

SAMPLE

INPUT

UTILITY

Displays the CHA input condition menu.

Displays the CHB input condition menu.

1. Press the INPUT key to display the INPUT top menu.

Selecting the channel to be set

2. Press the CHA or CHB touch key to select the desired channel. The input condition menu

for the selected channel will be displayed.

Selecting the input impedance

3. Press the IMPD touch key to select the desired input impedance (50Ω or 1 MΩ). The

highlighted input impedance (50Ω or 1 MΩ) will be selected.

Selecting the input coupling method

4. Press the COUPLING touch key to select the desired input coupling method (AC or DC).

The highlighted input coupling method (AC or DC) will be selected.

Setting the Acquisition Conditions for Input Signal to be Measured

IM 704210-01E

Selecting the trigger mode

5. Press the TRIGGER touch key to highlight TRIGGER.

6. Turn the rotary knob to select the desired trigger mode.

Setting the trigger level (required only when MANUAL trigger mode is selected)

7. Turn the rotary knob or press the ten-key to select the desired trigger level.

Input condition menu

(The same items are also displayed when CHB is selected.)

Selects the input impedance.

Selects the input coupling method.

Selects the trigger mode.

Selects the trigger level.

6-1

6.1 Setting the Input Coupling, Input Impedance, Trigger Mode and Trigger Level

Explanation

Selecting the channel to be set

Select the input conditions individually for channels A and B.

Selecting the input impedance

Select 50Ωor 1 MΩ. If AC coupling is selected, frequency characteristic will vary depending on the selected input impedance. For details, refer to 12.1.

Selecting the input coupling method

Select AC or DC. Frequency characteristic will vary depending on the selected input coupling method. For details, refer to 12.1.

Selecting the trigger mode

Select the desired trigger mode from the following.

• SGL.AUTO : Single auto trigger mode.

• REP.AUTO : Repeat auto trigger mode.

• MANUAL : Manual trigger mode.

Setting the trigger level (required only when MANUAL trigger mode is selected)

Setting range : –5 V to +5 V

6-2

IM 704210-01E

6.2 Setting the Gate Type, Sample Size and

External gate menu

Selects the polarity.

Selects the sampling interval. (Display for time stamp mode only.)

Selects the gate type.

Sampling Interval

≡≡

≡For a description of the function, refer to 1.5

Procedure

• To exit from the current menu, press any of the top menu keys or press the ESC touch key displayed on the screen.

SAMPLE Top Menu

MODE

FUNCTION

DISPLAY

≡≡

≡

≡≡

SAMPLE

INPUT

UTILITY

Displayed only when time stamp mode is selected.

1. Press the SAMPLE key to display the SAMPLE top menu.

Selecting the gate type

2. Press the GATE touch key to highlight GATE.

3. Turn the rotary knob to select the desired gate type.

• Setting the sample size (number of events) (required if EVENT gate type is selected at step 3)

4. Press the SIZE touch key to highlight SIZE.

5. Turn the rotary knob or press the ten-key to set the desired number of events. Proceed to

step 9.

• Setting the gate time (required if TIME gate type is selected at step 3)

6. After step 3, press the GATETIME touch key to highlight GATETIME.

7. Use the ten-key to set the desired gate time. After the desired gate time has been set, proceed

to step 9.

Setting the Acquisition Conditions for Input Signal to be Measured

IM 704210-01E

Event gate menu

Selects the gate type.

Sets the sample size.

Selects the sampling interval. (Display for time stamp mode only.)

• Selecting the polarity (required if EXTERNAL gate type is selected at step 3)

8. After step 3, press the POLARITY touch key to highlight

or . The highlighted

polarity will be selected. After the desired polarity has been set, proceed to step 9.

Selecting the sampling interval

9. Press the INTERVAL touch key to highlight INTERVAL.

10. Turn the rotary knob to set the desired sampling interval.

Time gate menu

Selects the gate type.

Sets the gate time.

Selects the sampling interval. (Display for time stamp mode only.)

6-3

6.2 Setting the Gate Type, Sample Size and Sampling Interval

Explanation

Selecting the gate type

Select the desired gate type from the following.

• EVENT : Event gate

• TIME : Time gate

• EXTERNAL : External gate. It is not possible to set the arming function or use the external arming signal if EXTERNAL is selected, since the external arming input terminal is shared with the external gate input signal.

Points to note when selecting EXTERNAL

Input the external gating signal to the EXT ARM terminal on the rear panel.

• Input impedance : 10 kΩ (Typical *)

• Input coupling : DC

• Trigger level : TTL level

• Maximum input voltage : –8 V to 13 V (DC + AC

peak

)

• Minimum pulse width : 30 ns

• Setup time : 70 ns (in order for the gating signal to be valid, it must precede the measurement signal by no less than 70 ns)

* Typical value is described in terms of typical of average performance. However, they cannot

be guaranteed.

External gate input circuit (shared with the external arming signal)

+5V

EXT ARM

(External arming input terminal)

(TTL)

74LS14 or equivalent

500 Ω

10k Ω

CAUTION

Never apply a voltage exceeding the maximum input voltage to the external arming input terminal (EXT ARM IN). Damage to the terminal may result.

Setting range for the number of events

The setting range varies according to the selected sampling mode. This setting is available only when EVENT gate is selected.

• For time stamp mode

• Period, time interval or pulse width measurement : 1 to 32,000

• Phase difference or duty ratio measurement :1 to 16,000

• For hardware histogram mode: 1 to 99,999,999

Note

Measurement of one block will be forced to end when 320 seconds (maximum sampling time) elapse following the arming, even if the number of events specified in sampling mode has not been reached.

6-4

Setting range for gate time

The gate time can be set within the following range. This setting is available only when TIME gate is selected. 1 µs to 10 s

Note

• Setting resolution varies depending on the value to be set. For details, refer to 12.2.

• Measurement of one block will be forced to end if the number of events for the block reaches the

maximum number of events for the selected sampling mode even if the preset gate time has not been reached.

IM 704210-01E

6.2 Setting the Gate Type, Sample Size and Sampling Interval

Selecting the polarity

Select the desired polarity from the following. This setting is available only when EXTERNAL gate is selected.

: Carries out measurement only when a positive signal is being input to the EXT ARM

• IN terminal.

: Carries out measurement only when a negative signal is being input to the EXT ARM

• IN terminal.

Note

Measurement of one block will be forced to end when the maximum number of events for the selected sampling mode is reached or when the maximum sampling time is exceeded, even if the external gate is still open.

Selecting the sampling interval

Select the desired sampling interval from the following. For hardware histogram mode, the sampling interval is fixed at MIN and cannot be set to another option. MIN/1 µs/2 µs/4 µs/10 µs/20 µs/40 µs/100 µs/200 µs/400 µs/1 ms/2 ms/4 ms MIN equals to 71 ns.

Currently set number of events

Selected sampling interval

Setting the Acquisition Conditions for Input Signal to be Measured

IM 704210-01E

6-5

6.3 Setting the Arming Source, Slope and Delay

Procedure

Types

≡≡

≡For a description of the function, refer to 1.5

Procedure

• To exit from the current menu, press any of the top menu keys or press the ESC touch key displayed on the screen.

SAMPLE Top Menu

MODE

FUNCTION

DISPLAY

SAMPLE

≡≡

≡

≡≡

INPUT

UTILITY

Displays the arming menu. (This touch key is not displayed if EXTERNAL gate is selected)

1. Press the SAMPLE key to display the SAMPLE top menu.

Displaying the arming menu

2. Press the ARMING touch key to display the arming menu. This setting is not available (the

ARMING touch key is not displayed) if EXTERNAL gate is selected.

Selecting the arming source

3. Press the SOURCE touch key to highlight SOURCE.

4. Turn the rotary knob to select the desired arming source.

If EXT (external arming) is selected at step 4, proceed to the following steps. If AUTO (auto arming) is selected, the following steps will not be available.

Selecting the slope (edge) (required only when EXT arming is selected)

5. Press the SLOPE touch key to highlight

or . The highlighted slope will be selected.

Selecting the arming delay type (required only when EXT arming is selected)

6. Press the DELAY touch key to highlight DELAY.

7. Turn the rotary knob to select the desired delay type.

6-6

Setting the delay time (required only when TIME is selected at step 7)

8. Press the D.TIME touch key to highlight D.TIME.

9. Use the ten-key to set the desired delay time.

IM 704210-01E

6.3 Setting the Arming Source, Slope and Delay Types

• Setting the number of events (required only when EVENT is selected at step 7)

10. After step 7, press the D.EVENT touch key to highlight D.EVENT.

11. Turn the rotary knob to select the desired number of events.

Explanation

Auto arming menu

Selects the arming source.

External arming menu

Selects the arming source.

Selects the slope.

Selects the arming delay type.

Sets the delay time/number of events.

No touch key is displayed if OFF is selected as the arming delay type, and D.EVENT touch key is displayed if EVENT is selected.

Selecting the arming source

Selects the desired arming source from the following.

• AUTO : Auto arming

• EXT : External arming

Points to note when selecting EXTERNAL

Input the external arming signal to the EXT ARM terminal on the rear panel.

• Input impedance : 10 kΩ (Typical *)

• Input coupling : DC

• Trigger level : TTL level

• Maximum input voltage : –8 V to 13 V (DC + AC

peak

)

• Minimum pulse width : 30 ns

• Setup time : 70 ns (in order for the arming signal to be valid, it must precede the measurement signal by no less than 70 ns)

* Typical value is described in terms of typical of average performance. However, they cannot

be guaranteed.

Setting the Acquisition Conditions for Input Signal to be Measured

IM 704210-01E

External arming input circuit (shared with the external gating signal)

+5V

EXT ARM

(External arming input terminal)

(TTL)

74LS14 or equivalent

500 Ω

10kΩ

CAUTION

Never apply a voltage exceeding the maximum input voltage to the external arming input terminal (EXT ARM IN). Damage to the terminal may result.

6-7

6.3 Setting the Arming Source, Slope and Delay Types

Selecting the slope (edge)

Select the desired slope from the following. This is required only if EXT has been selected as the arming source.

: Causes arming at a rising edge of the external arming signal.

• : Causes arming at a falling edge of the external arming signal.

•

Selecting the arming delay type

Select the desired arming delay type from the following. This setting is available only when EXT arming is selected.

• OFF : Selection/setting of arming delay is disabled. Arming delay will not be performed.

• TIME : Time delay

• EVENT : Event delay

• Setting the delay time

The delay time can be set within the following range. This setting is available only when TIME arming delay is selected. 1 µs to 1 s

Note

Setting resolution varies depending on the value to be set. For details, refer to 12.2.

• Selecting the number of events to be delayed

Select from the following. This setting is available only when EVENT arming delay is selected. 1/2/3/4/5/6/7/8/9/10/20/30/40/50/60/70/80/90/100/200/300/400/500/600/700/800/900/1000/2000/ 3000/4000/5000/6000/7000/8000/9000/10000/20000/30000

Note

The number of events to be delayed for the signal which is input to the measuring channel must be selected. However, for time interval measurement, the number of events to be delayed for the signal input to the channel A (CHA) must be selected.

6-8

IM 704210-01E

6.4 Setting the Inhibit Function

Explanation

Procedure

Explanation

MODE

FUNCTION

DISPLAY

SAMPLE

INPUT

UTILITY

≡≡

≡For a description of the function, refer to 1.5

≡≡

• To exit from the current menu, press any of the top menu keys.

SAMPLE Top Menu

Sets the inhibit function.

1. Press the SAMPLE key to display the SAMPLE top menu.

2. Press the INHIBIT touch key to highlight INHIBIT.

3. Turn the rotary knob to select the desired polarity.

Selecting the polarity

Select the desired polarity from the following. The inhibit function is disabled if OFF is selected.

•

: Inhibits measurement while a positive signal is input to the INHIBIT IN terminal.

• : Inhibits measurement while a negative signal is input to the INHIBIT IN terminal.

Note

The inhibit signal is valid only if it is input within just 320 seconds following the arming. It will not be valid if it is input after 320 seconds have elapsed following the arming.

≡≡

≡

≡≡

Setting the Acquisition Conditions for Input Signal to be Measured

Points to note when inputting the inhibit signal

Input the inhibit signal to the INHIBIT IN terminal on the rear panel.

• Input impedance : 10 kΩ (Typical *)

• Input coupling : DC

• Trigger level : TTL level

• Maximum input voltage : –8 V to 13 V (DC + AC

peak

)

• Minimum pulse width : 30 ns

• Setup time : 70 ns (in order for the inhibit signal to be valid, it must precede the measurement signal by no less than 70 ns)

* Typical value is described in terms of typical of average performance. However, they cannot

be guaranteed.

Inhibit input circuit

+5V

INHIBIT

(TTL)

(Inhibit input terminal)

74LS14 or equivalent

500Ω

10kΩ

CAUTION

Never apply a voltage exceeding the maximum input voltage to the inhibit input terminal (INHIBIT IN). Damage to the terminal may result.

IM 704210-01E

6-9

7.1 Setting the Histogram Display Function and Reading the Data (Readout)

≡≡

≡For a description of the function, refer to 1.4 and 1.6

Procedure

• To exit from the current menu, press any of the top menu keys or press the ESC touch key displayed on the screen.

DISPLAY Top Menu

≡≡

≡

≡≡

MODE

FUNCTION

DISPLAY

SAMPLE

INPUT

UTILITY

Performs auto scaling.

Displays the display format menu.

Displays the X-axis/Y-axis menu.

Displays the marker menu.

Displays the calculation menu.

Displays the multi-window menu. (displayed for hardware histogram mode only. Refer to 7.2.)

1. Press the DISPLAY key to display the DISPLAY top menu.

Selecting the histogram display function

2. Press the DISP touch key to display the display format menu.

3. Press the HISTOGRAM touch key to select the histogram display function. The screen will

return to the DISPLAY top menu when the HISTOGRAM touch key is pressed.

Performing auto scaling

4. Press the AUTO SCALE touch key to perform auto scaling. The X-axis and Y-axis suitable

for the input signal will be set automatically to display a histogram. The X-axis and Y-axis can be changed by carrying out steps 5 to 13. If it is not necessary to change the X-axis and Y-axis scaling, proceed to step 14.

Displaying the Measured/Computed Data

IM 704210-01E

Display format menu

Selects the histogram display function.

Displayed only when the multi-window function is active (see 7.2).

Displayed during time stamp mode only.

7-1

7.1 Setting the Histogram Display Function and Reading the Data (Readout)

X-axis/Y-axis menu

Sets the center value of X-axis.

Sets the span of X-axis.

Sets the maximum value of Y-axis.

Sets the Y-axis scale.

Displayed only when the multi-window function is active (see 7.2).

Marker menu

Turns marker display ON/OFF.

Moves the X1 marker.

Moves the X2 marker.

Selects the marker speed.

Setting the X-axis and Y-axis

5. Press the SCALE touch key to display the X-axis/Y-axis menu.

• Setting the center value of X-axis

6. Press the X CENTER touch key to highlight X CENTER.

7. Turn the rotary key or use the ten-key to set the desired center value of X-axis.

• Selecting the span of X-axis

8. Press the X SPAN touch key to highlight X SPAN.

9. Turn the rotary key to select the desired span of X-axis.

• Selecting the Y-axis scale

10. Press the Y AXIS touch key to highlight LIN or LOG. The highlighted scale will be selected.

• Selecting the maximum value of Y-axis

11. Press the Y HIGH touch key to highlight Y HIGH.

12. Turn the rotary knob to select the desired maximum value of Y-axis.

• Returning to the DISPLAY top menu

13. Press the ESC touch key.

Setting readout parameters

14. From the DISPLAY top menu, press the MARKER touch key to display the marker menu.

• Turning marker display ON/OFF

15. Press the MARKER touch key of the marker menu, to highlight OFF or ON. The highlighted option (OFF or ON) will be selected. If OFF is selected, skip to step 23.

• Moving the X1 marker

16. Press the X1 MARKER touch key to highlight X1 MARKER.

17. Turn the rotary knob to move the X1 marker to the desired position.

• Moving the X2 marker

18. Press the X2 MARKER touch key to highlight X2 MARKER.

19. Turn the rotary knob to move the X2 marker to the desired position.

• Selecting the marker speed

20. Press the MOVEMENT touch key to highlight

. This will cause the marker to move

faster.

21. Press the MOVEMENT touch key to highlight . This will cause the marker to move at the original speed.

• Returning to the DISPLAY top menu

22. Press the ESC touch key.

Calculation menu

Selects the area.

Sets the constant T.

Selects the polarity to be used for display/statistical computation.

Displayed only when is selected for pulse width measurement.

Also used for statistical computation (see 7.7 and 7.8).

7-2

Setting the calculation function

23. From the DISPLAY top menu, press the CALCULATION touch key to display the calculation menu.

• Selecting the area

24. Press the AREA touch key to highlight AREA.

25. Turn the rotary knob to select the desired area.

• Setting constant T

26. Press the CONST T touch key to highlight CONST T.

27. Turn the rotary knob or use the ten-key to set the desired constant.

• Selecting the polarity to be used for display/statistical computation (Required only has been selected for pulse width measurement)

28. Press the POLARITY touch key to highlight , or . The highlighted polarity will be selected.

IM 704210-01E

7.1 Setting the Histogram Display Function and Reading the Data (Readout)

Explanation

Selecting the histogram display function

From the display format menu, select HISTOGRAM.

Performing auto scaling

The X-axis and Y-axis will be set automatically so that the entire distribution of measured data can be displayed. The X-axis and Y-axis scaling can be changed as described below.

Setting the X-axis and Y-axis

• Setting range for center value of X-axis.

The setting range varies according to the selected measurement function.

• Period, time interval or pulse width measurement: 10 ns to 99.9999900 ms (up to 3.19 µs in the case of hardware histogram mode)

• Phase difference measurement: 15.00 to 345.00 deg

• Duty ratio measurement: 0.500 to 99.500%

• Selecting the span of X-axis

The span varies according to the selected measurement function.

• Period, time interval or pulse width measurement: 2/4/10/20/40/100/200/400 ns, 1/2/4/10/20/ 40/100/200/400 µs, 1/2/4/10/20/40/100 ms (up to 3.2 µs in the case of hardware histogram mode)

• Phase difference measurement: 30/60/90/180/360 deg

• Duty ratio measurement: 1/5/10/50/100%

• Selecting the Y-axis scale.

• LIN: Linear scale

•LOG: Logarithmic scale

• Selecting the maximum value of Y-axis

The maximum value of Y-axis varies according to the selected Y-axis scale.

• LIN: 10/20/40/100/200/400/1000/2000/4000/10000/20000/40000/1e5/1e6/1e7/1e8 (up to 32000 in the case of time stamp mode)

• LOG: 1e1/1e2/1e3/1e4/1e5/1e6/1e7/1e8 (e.g. 1e2 indicates 10 stamp mode)

.) (up to 1e5 in the case of time

Displaying the Measured/Computed Data

IM 704210-01E

7-3

7.1 Setting the Histogram Display Function and Reading the Data (Readout)

Setting readout parameters

• Turning marker display ON/OFF

•ON : Displays the markers.

• OFF : Displays no markers. X1 MARKER, X2 MARKER and MOVEMENT touch keys are also not displayed.

• Movable range of X1 marker

The X1 marker can move about within the window, as long as it is located on the left of X2 marker. (They can be located in the same position.)

• Movable range of X2 marker

The X2 marker can move about within the window, as long as it is located on the right of X1 marker. (They can be located in the same position.)

• Selecting the marker speed

: Causes the markers to move within the window every dot.

•

: Causes the markers to move within the window every 5 dots.

•

X1 marker

Window

X2 marker

X1: X-axis coordinate of X1 marker Y1: Y-axis coordinate of X1 marker (frequency of X1) X2: X-axis coordinate of X2 marker Y2: Y-axis coordinate of X2 marker (frequency of X2) N:

• WINDOW calculation area: Total number of samples present within the window.

• MARKER calculation area: Number of samples present between X1 and X2 markers.

Note

With a certain center value and span of X-axis, markers may be located in an area which does not actually exist. For instance, if the center value of X-axis is set to 10 ns and span of X-axis is set to 3.2 µs, the window will contain minus measurement data area. If the markers are located in this area, asterisks “*” will be displayed instead of the X-axis coordinates.

Setting the calculation function

• Selecting the area

Select WINDOW or MARKER. The item indicated by “N” at the bottom of the screen varies according to the selected calculation area.

• Setting constant T

Setting range: 10 to 999.9 ns

7-4

• Selecting the polarity to be used for display/statistical computation

This menu is displayed only if

is selected for pulse width measurement. Select the desired polarity from the following to be used for display (histogram, time variation) or statistical computation.

: Displays or performs statistical computation for the positive side only.

•

• : Displays or performs statistical computation for the negative side only. : Displays or performs statistical computation for the both positive and negative sides.

•

However, computation will be performed for the standard deviation and jitter1 only. For details, refer to 7-7.

IM 704210-01E

7.2 Using the Multi-window Function

X-axis coordinate of the X1 marker

X-axis coordinate of the X2 marker

Procedure

MODE

FUNCTION

DISPLAY

SAMPLE

INPUT

UTILITY

≡≡

≡For a description of the function, refer to 1.6

≡≡

• To exit from the current menu, press any of the top menu keys or press the ESC touch key displayed on the screen.

DISPLAY Top Menu

Performs auto scaling.

Displays the display format menu.

Displays the X-axis/Y-axis menu.

Displays the marker menu.

Displays the calculation menu.

Displays the multi-window menu. (displayed for hardware histogram mode only)

1. Press the DISPLAY key to display the DISPLAY top menu.

Selecting the histogram display function

2. Select the histogram display function as described in 7.1.

Performing auto scaling

3. Perform auto scaling as described in 7.1.

≡≡

≡

≡≡

Displaying the Measured/Computed Data

Preparation before using the multi-window function

4. Press the MARKER touch key of the DISPLAY top menu to display the marker menu.

5. Press the MARKER touch key of the marker menu to highlight ON.

6. Some histograms will be displayed on the screen. Move the X1 marker to the highest

frequency position of the left most histogram by turning the rotary knob, and read and record the X-axis coordinate of the X1 marker.

7. Next, move the X2 marker to the highest frequency position of the second histogram from

the left by turning the rotary knob, read the X-axis coordinate of the X2 marker, then read and record the displacement from the X1 marker.

8. Press the ESC touch key to return to the DISPLAY top menu.

IM 704210-01E

7-5

7.2 Using the Multi-window Function

Setting the multi-window function

9. Press the WINDOW touch key of the DISPLAY top menu to display the multi-window menu.

• Selecting multi-window

10. Press the SINGLE/MULTI touch key to highlight MULTI. The MODE and SIZE touch keys will appear.

• Selecting the multi-window mode

11. Press the MODE touch key to highlight AUTO or MAN. The highlighted mode (AUTO or MAN) will be selected.

• Selecting the window size (number of windows)

12. Press the SIZE touch key to highlight SIZE.

13. Turn the rotary knob to set the desired window size.

• Returning to the DISPLAY top menu

14. Press the ESC touch key to return to the DISPLAY top menu.

Multi-window menu

Selects the multi-window function.

Selects the multi-window mode.

Selects the window size.

Panorama display menu (see 7.3)

Setting the X-axis and Y-axis

15. Press the SCALE touch key to display the X-axis/Y-axis menu.

• Setting the center value of X-axis

16. Press the X CENTER touch key to highlight X CENTER.

17. Turn the rotary key or use the ten-key to set the desired center value of X-axis for window 1. The value recorded at step 6 (the X-axis coordinate of the X1 marker) must be set.

• Selecting the span of X-axis

18. Press the X SPAN touch key to highlight X SPAN.

19. Turn the rotary key to select the desired span of X-axis. By referring to the value recorded at step 7 (the displacement of the X2 marker from X1 marker), set the span so that the entire histogram to be analyzed is positioned inside the window.

• Setting the space between the center values of X-axis (required only when AUTO multi-window mode is selected)

20. Press the W.SPACE touch key to highlight W.SPACE.

21. Turn the rotary key or use the ten-key to set the space between the center value of X-axis for

a window and that for other windows. The value recorded at step 7 (the displacement of the X2 marker from X1 marker) must be set.

• Selecting the scale and maximum value of Y-axis

22.

Select the scale and maximum value of Y-axis, if necessary. For the selection method, refer to 7.1.

• Re-setting the X-axis and Y-axis

23. Repeat steps from 15 until the histogram can be observed clearly and easily.

7-6

X-axis/Y-axis menu

Sets the center value of X-axis.

Selects the span of X-axis.

Sets the space between the center values of X-axis. (This setting is required only when AUTO multi-window mode is selected.)

Selects the maximum value of Y-axis.

Selects the scale of Y-axis.

IM 704210-01E

Explanation

7.2 Using the Multi-window Function

Observing other windows

24. Press the WINDOW selection touch key (WINDOW 1 in the example given on page 7-6) displayed at the upper left corner to highlight WINDOW.

25. Turn the rotary knob to select the desired window. Up to the window size (i.e. number of windows) specified at steps 12 and 13 can be selected. The X-axis/Y-axis menu varies according to the multi-window mode selected at step 11. For details, refer to “Explanation” given on this page.

Preparation before using the multi-window function

If more than two histograms exist and the distribution range of each histogram is not known, turn OFF the multi-window function and perform auto scaling. The multi-window function can be turned OFF as described below.

• Turning OFF the multi-window function

Press the SINGLE/MULTI touch key to highlight SINGLE. The MODE and SIZE touch keys will disappear, indicating that the multi-window function has been turned OFF.

• Marker positions (X1 and X2 markers) were recorded at steps 6 and 7. They are referred to

when determining the X-axis for multi-window. Turn ON the multi-window function, and resets the X-axis and Y-axis as described at step 23 so that the histogram can be observed clearly and easily.

Setting the multi-window function

The multi-window function can be set only when hardware histogram mode is selected as the sampling mode.

• Selecting multi-window

• SINGLE: Turns OFF the multi-window function. The MODE and SIZE touch keys will not be

displayed.

•

MULTI: Turns ON the multi-window function. The MODE and SIZE touch keys will be displayed.

• Selecting the multi-window mode

This setting is available when MULTI is selected. Select the method of setting the X-axis for each window.

• AUTO: Applies the span of X-axis set for window 1 using the X-axis/Y-axis menu to window

2 and other windows. A menu for setting the space between center values of X-axis will appear, as shown below.

• MAN: Allows the user to set the center value and span of X-axis for each window individually

using the X-axis/Y-axis menu. The menu for setting the space between center values of X-axis will not appear.

Displaying the Measured/Computed Data

When AUTO multi-window mode is selected

• X-axis/Y-axis menu for window 1

Indicates that a total of 9 windows are available and window 1 is currently displayed.

Sets the space between center values of X-axis.

When MANU multi-window mode is selected

• X-axis/Y-axis menu for window 1

Indicates that a total of 9 windows are available and window 1 is currently displayed.

• X-axis/Y-axis menu for window 2 and others

Indicates that a total of 9 windows are available and window 9 is currently displayed.

• X-axis/Y-axis menu for window 2 and others

Indicates that a total of 9 windows are available and window 2 is currently displayed.

IM 704210-01E

7-7

7.2 Using the Multi-window Function

• Selecting the window size (number of windows)

Up to 16 windows can be set if the multi-window function is ON. Setting range: 1 to 16

Setting the X-axis and Y-axis

For the setting method for center value of X-axis, span of X-axis, Y-axis scale, maximum value of Y-axis and area, refer to 7.1. If MULTI is selected, use the W.SPACE touch key of the X-axis/Y-axis menu to set the space between the center value of X-axis for a window and that for other windows. The W.SPACE touch key is displayed if AUTO is selected as the multi-window mode. Setting range for the space between the center values of X-axis: 0 to 250 ns

Note

If AUTO is selected as the multi-window mode, the histogram containing the smallest measured data must be used to set the X-axis and Y-axis for window 1. For the space between the center values of X-axis, only a positive displacement is set. Thus, if a histogram contains measured data smaller than that contained in the histogram used for window 1, no window will be assigned to that histogram. As a result, this histogram will not be displayed even if the window is switched to another at steps 24 and 25.

7-8

IM 704210-01E

7.3 Using the Panorama Display Function

Procedure

≡≡

≡For a description of the function, refer to 1.6

≡≡

• To exit from the current menu, press any of the top menu keys or press the ESC touch key

displayed on the screen.

DISPLAY Top Menu

MODE

FUNCTION

DISPLAY

SAMPLE

INPUT

UTILITY

Performs auto scaling.

Displays the display format menu.

Displays the multi-window menu. (displayed for hardware histogram mode only)

1. Press the DISPLAY key to display the DISPLAY top menu.

Selecting the histogram display function

2. Select the histogram display function as described in 7.1.

Performing auto scaling

3. Perform auto scaling as described in 7.1.

≡≡

≡

≡≡

Displaying the Measured/Computed Data

Setting the panorama display function

4. Press the WINDOW touch key to display the multi-window menu.

• Turning the panorama display function ON/OFF

5. Press the PANORAMA touch key to highlight OFF or ON. The highlighted option (OFF or ON) will be selected. In this example, highlight ON to select it.

• Selecting the panorama area

6. Press the P.AREA touch key to highlight P.AREA.

7. Turn the rotary knob to select the desired panorama area.

Multi-window menu

Turns the panorama display function ON/OFF.

Selects the panorama area.

Displayed only when the panorama display function is ON.

Displayed during multi-window mode only .

IM 704210-01E

7-9

7.3 Using the Panorama Display Function

Explanation

The panorama display function is available only when hardware histogram mode is selected as the sampling mode.

Turning the panorama display function ON/OFF

• OFF: Does not display the panorama bar. The P.AREA touch key will not be displayed.

• ON: Displays the panorama bar. The P.AREA touch key will be displayed.

Selecting the panorama area

•0 to 3.2 µs is divided into four panorama areas, to allows the user to select a panorama area from a total of 10 area combinations.

Panorama bar

This area is displayed.

800ns 1.6µs 2.4µs

3.2µs

• Turning the rotary knob while P.AREA is highlighted will switch the panorama area from one to another as shown below.

7-10

IM 704210-01E

7.4 Carrying out Histogram Data Addition

Procedure

≡≡

≡For a description of the function, refer to 1.6

≡≡

• To exit from the current menu, press any of the top menu keys or press the ESC touch key displayed on the screen.

DISPLAY Top Menu

MODE

FUNCTION

DISPLAY

SAMPLE

INPUT

UTILITY

Displays the display format menu.

Displays the X-axis/Y-axis menu.

1. Press the DISPLAY key to display the DISPLAY top menu.

Selecting multi-window

2. Select the multi-window as described in 7.2. Select AUTO as the multi-window mode.

Selecting the histogram data addition function

3. Press the DISP touch key to display the display format menu.

4. Press the HIST SUM touch key to select the histogram data addition function. The screen

will return to the DISPLAY top menu when the HIST SUM touch key is pressed.

≡≡

≡

≡≡

Displaying the Measured/Computed Data

Display format menu

Selects the histogram data addition function. (displayed only when the multi-window function is ON).

IM 704210-01E

7-11

7.4 Carrying out Histogram Data Addition

Setting the Y-axis

5. Press the SCALE touch key to display the Y-axis menu.

• Selecting the Y-axis scale

6. Press the Y AXIS touch key to highlight LIN or LOG. The highlighted scale will be selected.

• Selecting the maximum value of Y-axis

7. Press the Y HIGH touch key to highlight Y HIGH.

8. Turn the rotary knob to select the desired maximum value of Y-axis.

Histogram data addition

X-axis coordinate of each marker

(Asterisks “*” are displayed instead of the X-axis coordinates in the case of histogram data addition.)

Center value of X-axis

(No numerical value is displayed in the case of histogram data addition.)

Y-axis menu

Selects the maximum value of Y-axis.

Selects the Y-axis scale.

Explanation

The histogram data addition is available only when the multi-window function is ON and AUTO is selected as the multi-window mode.

Histogram data addition

• The frequency of all the windows (i.e. windows set using the SIZE touch key during multi-

window setting) is added.

• The frequency of the bin located within the span of X-axis and at the relatively same position to

the center value of X-axis is added.

• The center value and marker’s X-axis coordinate are not displayed since they exist for each

window, thus displaying them is meaningless.

• Y1 and Y2 (frequency of each marker) indicates the frequency obtained after addition is carried

out.

•N indicates the number of samples obtained after addition is carried out. Whether N indicates

the number of samples present in the entire window or within the area enclosed by the markers is determined by the calculation area set in 7.1.

Setting the Y-axis

Refer to “Explanation” given in 7.1.

7-12

IM 704210-01E

7.5 Setting the Time Variation Display Function and Reading the Data (Readout)

≡≡

≡For a description of the function, refer to 1.4 and 1.6

Procedure

• To exit from the current menu, press any of the top menu keys or press the ESC touch key displayed on the screen.

DISPLAY Top Menu

≡≡

≡

≡≡

MODE

FUNCTION

DISPLAY

SAMPLE

INPUT

UTILITY

Performs auto scaling.

Displays the display format menu.

Displays the X-axis/Y-axis menu.

Displays the marker menu.

Displays the display parameter menu.

1. Press the DISPLAY key to display the DISPLAY top menu.

Selecting the time variation display function

2. Press the DISP touch key to display the display format menu.

3. Press the TIMEVAR. touch key to select the time variation display function.

The screen will return to the DISPLAY top menu when the TIMEVAR. touch key is pressed.

Performing auto scaling

4. Press the AUTO SCALE touch key to perform auto scaling. The X-axis and Y-axis suitable

for the input signal will be set automatically to display time variation. The X-axis and Y-axis can be changed by carrying out steps 5 to 14. If it is not necessary to change the X-axis and Y-axis scaling, proceed to step 15.

Displaying the Measured/Computed Data

IM 704210-01E

Display format menu

Selects the time variation display function. (display for time stamp mode only).

7-13

7.5 Setting the Time Variation Display Function and Reading the Data (Readout)

Setting the X-axis and Y-axis

5. Press the SCALE touch key to display the X-axis/Y-axis menu.

• Setting the minimum value of X-axis

6. Press the X MIN touch key to highlight X MIN.

7. Turn the rotary key or use the ten-key to set the desired minimum value of X-axis.

• Selecting the span of X-axis

8. Press the X SPAN touch key to highlight X SPAN.

9. Turn the rotary key to select the desired span of X-axis.

• Setting the center value of Y-axis

10. Press the Y CENTER touch key to highlight Y CENTER.

11. Turn the rotary key or use the ten-key to set the desired center value of Y-axis.

• Selecting the span of Y-axis

12. Press the Y SPAN touch key to highlight Y SPAN.

13. Turn the rotary key to select the desired span of Y-axis.

• Returning to the DISPLAY top menu

14. Press the ESC touch key.

X-axis/Y-axis menu

Setting readout parameters

15. Set readout parameters using the marker menu as described in 7.1.

Selecting the display parameters (from the DISPLAY top menu)

16. Press the DISP PARAM. touch key to display the display parameter menu.

• Turning grid display ON/OFF

17. Press the GRID touch key to highlight OFF or ON. The highlighted option (OFF or ON) will be selected.

• Turning interpolation display ON/OFF

18. Press the CONNECT touch key to highlight OFF or ON. The highlighted option (OFF or ON) will be selected.

Sets the minimum value of X-axis

Selects the span of X-axis

Sets the center value of Y-axis

Selects the span of Y-axis

Marker menu

Turns marker display ON/OFF

Moves the X1 marker

Moves the X2 marker

Selects the marker speed

Display parameter menu

Turns grid display ON/OFF

Turns interpolation display ON/OFF

7-14

IM 704210-01E

Explanation

7.5 Setting the Time Variation Display Function and Reading the Data (Readout)

The time variation display function is available only when time stamp mode is selected as the sampling mode.

Selecting the time variation display function

From the display format menu, select TIME VAR. The time stamp resolution (X-axis) is 100 ns.

Performing auto scaling

Refer to 7.1.

Setting the X-axis and Y-axis

• Setting range for the minimum value of X-axis

The minimum value of X-axis can be set within the following range. 0 to 199.9999800 sec.

• Selecting the span of X-axis

Select from the following. 20/40/100/200/400 µs, 1/2/4/10/20/40/100/200/400 ms, 1/2/4/10/20/40/100/200 sec.

• Setting range for the center value of Y-axis

The setting range varies according to the selected measurement function.

• Period, time interval or pulse width measurement: 10 ns to 99.9999900 ms

• Phase difference measurement: 15.00 to 345.00 deg

• Duty ratio measurement: 0.500 to 99.500%

• Selecting the span of Y-axis

The span varies according to the selected measurement function.

• Period, time interval or pulse width measurement: 2/4/10/20/40/100/200/400 ns, 1/2/4/10/20/ 40/100/200/400 µs, 1/2/4/10/20/40/100 ms

• Phase difference measurement: 30/60/90/180/360 deg

• Duty ratio measurement: 1/5/10/50/100%

Displaying the Measured/Computed Data

Setting readout parameters

For the setting method for maker display, movable range and speed, refer to 7.1. The meaning of each value displayed is given below.

X1 marker

X2 marker

X1: X-axis coordinate of X1 marker (time stamp) X2: X-axis coordinate of X2 marker (time stamp) X: X2 – X1 Y1: Y-axis coordinate of X1 marker (measured data) Y2: Y-axis coordinate of X2 marker (measured data) Y: |Y2 – Y1|

Note

• If more than two data exist in the marker position, the average value of those data will be displayed.

• If no data exists in the marker position, asterisks “*” will be displayed.

IM 704210-01E

7-15

7.5 Setting the Time Variation Display Function and Reading the Data (Readout)

Selecting the display parameters

When the time variation display function is ON, it is possible to select whether or not to display the grid in the window. In addition, it is also possible to select whether or not to interpolate (i.e. connect) measurement points.

• Turning grid display ON/OFF

Select ON or OFF.

• OFF: Does not display the grid.

• ON: Displays the grid.

• Turning interpolation display ON/OFF

Select ON or OFF.

• OFF: Does not interpolate measurement points.

• ON: Interpolates measurement points.

7-16

IM 704210-01E

7.6 Selecting the List Display Function and Displaying the Data

≡≡

≡For a description of the function, refer to 1.6

Procedure

• To exit from the current menu, press any of the top menu keys or press the ESC touch key displayed on the screen.

DISPLAY Top Menu

MODE

≡≡

≡

≡≡

FUNCTION

DISPLAY

SAMPLE

INPUT

UTILITY

Displays the display format menu

Selects the top data

Selects the bottom data

Displays the data number of the highlighted data

1. Press the DISPLAY key to display the DISPLAY top menu.

Selecting the list display function.

2. Press the DISP touch key to display the display format menu.

3. Press the LIST touch key to select the list display function.

The screen will return to the DISPLAY top menu when the LIST touch key is pressed.

Setting the data to be displayed in a list

4. Turn the rotary knob or use the ten-key to select the data to be displayed in a list. The value

displayed on the NUMBER touch key indicates the data number of the highlighted data in the list.

Displaying the Measured/Computed Data

Display format menu

Selects the list display function.

Displayed for time stamp mode only.

IM 704210-01E

7-17

7.6 Selecting the List Display Function and Displaying the Data

Jumping to the top data

6. Press the TOP touch key. “1” will be displayed on the NUMBER touch key. In the case of time stamp mode, the first measured value of the measurement block will be displayed at the top of the list. In the case of hardware histogram mode, the smallest value (representative value) inside the window will be displayed at the top of the list.

Jumping to the bottom data

7. Press the BOTTOM touch key. In the case of time stamp mode, the last measured value of the measurement block will be displayed at the bottom of the list. The value displayed on the NUMBER touch key indicates the data number of the last measured value. In the case of hardware histogram mode, the largest value (class value) inside the window will be displayed at the bottom of the list. The value displayed on the NUMBER touch key indicates the data number of the largest value (class value).

Explanation

Selecting the list display function.

The list contains 10 data items. The contents of the list vary according to the selected sampling mode. The time stamp resolution is 100 ns.

• Time stamp mode

Time stamp Measured value

Data number

1 2 3 4 5 6 7 8 9

The data number of the highlighted data is displayed.

• Hardware histogram mode

Class value Frequency

Data number

74 75 76 77 78 79 80 81 82 83

The data number of the highlighted data is displayed.

7-18

Setting range for data number

The setting range varies according to the selected according to the selected sampling mode.

• Time stamp mode: From the first measured value (NUMBER 1) to the last measured value of a

measurement block.

• Hardware histogram mode: From the smallest measured value (class value) (NUMBER 1) to

the largest value (class value) within the window

Note

The cursor is located at data number 1 during measurement. It is not possible to set data number during measurement.

IM 704210-01E

7.7 Selecting the Statistics Display Function and Reading the Statistic Data

≡≡

≡For a description of the function, refer to 1.4 and 1.6

Procedure

• To exit from the current menu, press any of the top menu keys or press the ESC touch key displayed on the screen.

DISPLAY Top Menu

MODE

≡≡

≡

≡≡

FUNCTION

DISPLAY

SAMPLE

INPUT

UTILITY

Displays the display format menu.

Displays the calculation menu.

Range touch key. (displayed for hardware histogram mode only)

1. Press the DISPLAY key to display the DISPLAY top menu.

Selecting the statistics display function

2. Press the DISP touch key to display the display format menu.

3. Press the STATISTICS touch key to the statistics display function.

The screen will return to the DISPLAY top menu when the STATISTICS touch key is pressed.

Setting constant T (required for hardware histogram mode only)

4. Press the CALCULATION touch key to display the calculation menu.

5. Turn the rotary knob or use the ten-key to set the desired constant T.

6. Press the ESC touch key to return to the DISPLAY top menu.

Displaying the Measured/Computed Data

Selecting the polarity to be used for display/statistical computation (Required only if

has been selected for pulse width measurement)

7. Press the POLARITY touch key to highlight

Selecting the bar graph range (required for hardware histogram mode only)

8. Turn the rotary knob to select the desired bar graph range.

Display format menu

Selects the statistics display function.

Displayed for time stamp mode only.

, or . The highlighted polarity

will be selected.

Calculation menu

Sets the constant T.

Selects the polarity to be used for display/statistical computation.

Displayed only when is selected for pulse width measurement.

IM 704210-01E

7-19

7.7 Selecting the Statistics Display Function and Reading the Statistic Data

Explanation

Displaying the statistic values

The window displaying a histogram or the area enclosed by the markers can be set as the area to be used for statistical computation. For details, refer to 7.1.

• Time stamp mode

• No computation is carried out for jitter 1 (σ/T) and jitter 2 (MELE), so asterisks “*” will be displayed.

Statistical computation item Statistic value

No computation is carried out for jitter 1 and jitter 2.

Statistical computation area

(The entire window is used for statistical computation in this example. “MARKER” will be displayed if the area enclosed by the markers is used for statistical computation.)

• Hardware histogram mode

A bar graph indicating the standard deviation s is displayed below the list. The bar graph range (maximum value) can be selected (see below).

Statistical computation item Statistic value Statistical computation area

(The area enclosed by the markers is used for statistical computation in this example. “WINDOW” will be displayed if the entire window is used for statistical computation.)

Standard deviation σ is displayed in bar graph.

Bar graph range (maximum value)

Note

Statistic values are obtained as a result of computation of data present inside the window or the area enclosed by the markers. Asterisks “*” will be displayed instead of static values if no histogram exists inside the window or the area enclosed by the markers.

Setting constant T

Constant T is used for computation of jitter 1 and jitter 2 in the case of hardware histogram mode. Setting range: 10 to 999.9 ns

Note

The same constant T is used for both histogram display function (see 7.1) and this statistics display function. In addition, it is also used for pulse width measurement (see 5.4).

• Selecting the polarity to be used for display/statistical computation

The same menu as the one displayed when measurement is displayed. (It is also the same menu as the calculation menu displayed in 7.1). Select the desired polarity from the following to be used for statistical computation.

•

: Performs statistical computation for the positive side only.

•

: Performs statistical computation for the negative side only.

•

: Performs statistical computation for the both positive and negative sides. However,

computation results will be as follows.

• Maximum, minimum, average, peak to peak, flutter, jitter 2: Not computed and asterisks “*”

are displayed instead of the statistic values.

• Standard deviation, jitter 1: Standard deviation (σ) and jitter 1 (σ/T) are computed,

individually for positive and negative sides, then the sum of computed standard deviation and that of computed jitter 1 are divided by 2.

is selected as the polarity for pulse width

7-20

Selecting the bar graph range

The standard deviation (σ) is displayed in a bar graph only when the statistic display function is ON in hardware histogram mode. The maximum bar graph range can be selected from the following.

7.5/15/30/60 ns

IM 704210-01E

7.8 Selecting the Histogram Display Function and

Statistical computation items menu

Returns to the DISPLAY top menu.

Turns OFF display of the selected items.

Selects the statistical computation items.

Displaying the Statistic Data

≡≡

≡For a description of the function, refer to 1.4 and 1.6

Procedure

• To exit from the current menu, press any of the top menu keys or press the ESC touch key displayed on the screen.

DISPLAY Top Menu

MODE

≡≡

≡

≡≡

FUNCTION

DISPLAY

SAMPLE

INPUT

UTILITY

Displays the display format menu.

(Displayed for hardware histogram mode only.)

Displays the statistical computation item menu.

1. Press the DISPLAY key to display the DISPLAY top menu.

Selecting the statistics display function

2. Select the statistics display function as described in 7.1.

Selecting the statistical computation items

3. Press the STAT touch key located at the bottom of the screen to display the statistical

computation item menu.

4. Press the touch keys corresponding to the desired items. The selected items will be displayed

on the right of the STAT touch key. Only two items can be selected at a time. If the STAT touch key is pressed again to select other items, the previously selected and displayed two items will be replaced by newly selected items.

Displaying the Measured/Computed Data

Turning OFF display of the selected items

5. Press the OFF touch menu of the statistical computation item menu. The currently displayed

two items will disappear.

Returning to the DISPLAY top menu

6. Press the STAT touch key again or press the EXIT touch key to return to the DISPLAY top

menu.

IM 704210-01E

7-21

7.8 Selecting the Histogram Display Function and Displaying the Statistic Data

Explanation

Statistical computation items

The same statistical computation items as for 7.7 are available. Thus, no computation will be carried out for jitter 1 (σ/T) and jitter 2 (MELE) and therefore asterisks “*” are displayed, even if they are selected.

Allowable number of items selected

Up to two items can be displayed. If a third item is selected by pressing the corresponding touch key, the first item (displayed at the upper section of the statistic data area) will disappear, the second item will move up, and the newly selected item will be displayed at the lower section.

Indicates the currently selected computation area. Upper section

Lower section

7-22

IM 704210-01E

8.1 Storing the Set-up Information in the Internal Memory

≡≡

≡For a description of the function, refer to 1.7

Procedure

• To exit from the current menu, press any of the top menu keys or press the ESC touch key displayed on the screen.

UTILITY Top Menu

MODE

FUNCTION

≡≡

≡

≡≡

DISPLAY

SAMPLE

INPUT

UTILITY

Displays the store/recall menu.

1. Press the UTILITY key to display the UTILITY top menu.

2. Press the STORE/RECALL touch key to display the store/recall menu.

Selecting the memory number

3. Turn the rotary knob to select the desired memory number.

Storing the set-up information

4. Press the STORE touch key to store the set-up information into the selected memory.

Store/recall menu

Selects the memory number.

Storing and Recalling the Set-up Information from the Internal Memory

Explanation

IM 704210-01E

Stores the set-up information..

Set-up information to be stored

Settings made and selected using touch keys, rotary knob and ten-key are stored.

Selecting the memory number

Select the desired memory number from the following 10 numbers. If set-up information already exists in the selected memory, it will be overwritten by the new set-up information. #0 to #9

Note

The stored set-up information will not be deleted even if initialization is carried out.

8-1

8.2 Recalling the Set-up Information from the Internal Memory

≡≡

≡For a description of the function, refer to 1.7

Procedure

• To exit from the current menu, press any of the top menu keys or press the ESC touch key displayed on the screen.

UTILITY Top Menu

MODE

FUNCTION

≡≡

≡

≡≡

DISPLAY

SAMPLE

INPUT

UTILITY

Displays the store/recall menu.

1. Press the UTILITY key to display the UTILITY top menu.

2. Press the STORE/RECALL touch key to display the store/recall menu.

Selecting the memory number

3. Turn the rotary knob to select the desired memory number.

Recalling the set-up information

4. Press the RECALL touch key to recall the set-up information from the selected memory.

Store/recall menu

Selects the memory number.

Explanation

8-2

Recalls the set-up information.

Set-up information to be recalled

The set-up information stored in the desired memory is recalled. The current set-up information of the instrument will be replaced by the recalled one.

Selecting the memory number

Select the desired memory number from the following 10 numbers. Only the memory numbers where set-up information exists can be selected. #0 to #9

IM 704210-01E

9.1 Points to Note during Use of the Floppy Disk Drive

Applicable Floppy Disks

The following type of 3.5-inch floppy disk can be used. Floppy disks can be formatted using this instrument.

• 2HD type : 1.2 MB or 1.44 MB (MS-DOS format)

• 2DD type : 640 KB or 720 KB (MS-DOS format)

Inserting a Floppy Disk into the Floppy Disk Drive

Place the floppy disk with the label facing upward and insert it into the floppy disk drive. Insert it until the eject button pops up.

Removing the Floppy Disk from the Floppy Disk Drive

Make sure that the access indicator is OFF, then press the eject button to remove the floppy disk.

Access indicator

Eject button

CAUTION

Never remove the floppy disk while the access indicator is blinking. Failure to do so may damage the magnetic head of the floppy disk drive or destroy the data saved on the floppy disk.

General Points to Note during Use of the Floppy Disk

For general precautions regarding use of the floppy disk, refer to the instruction sheets supplied with the floppy disk.

Saving and Loading the Data from a Floppy Disk

IM 704210-01E

9-1

9.2 Formatting a Floppy Disk

Procedure

MODE

FUNCTION

DISPLAY

SAMPLE

INPUT

UTILITY

• To exit from the current menu, press any of the top menu keys or press the ESC touch key displayed on the screen.

UTILITY Top Menu

Displays the floppy disk menu.

Selects the UTILITY menu.

1. Insert a floppy disk to be formatted into the floppy disk drive.

2. Press the UTILITY key to display the UTILITY top menu.

3. Press the NEXT touch key to display NEXT 2/3 on the key.

Displaying the floppy disk menu

4. Press the FLOPPY touch key to display the floppy disk menu.

Selecting the format type

5. Press the FORMAT touch key to display the format menu.

6. Press the touch key corresponding to the desired format type.

Formatting the floppy disk

7. Press the EXEC touch key to format the floppy disk.

Floppy menu

Displays the format menu.

(Free space available on the floppy disk is displayed if the floppy disk has already been formatted.)

Format menu

Selects the format type.

Performs formatting.

9-2

IM 704210-01E

9.2 Formatting a Floppy Disk

Explanation

Displaying the free space available on the floppy disk

If the floppy disk menu is displayed with a MS-DOS formatted floppy disk inserted into the floppy disk unit, the free space available on the floppy disk will be displayed.

Selecting the format type

Select the desired format type from the following.

• 640K2DD: Used to format a 2DD type floppy disk for 640 KB/8 sectors.

• 720K2DD: Used to format a 2DD type floppy disk for 720 KB/9 sectors.

• 1.2M2HD: Used to format a 2HD type floppy disk for 1.2 MB/8 sectors.

• 1.44M2HD: Used to format a 2HD type floppy disk for 1.44 MB/18 sectors.

Creating directories during formatting

The following directories will be created on the floppy disk automatically when the floppy disk is formatted.

• TA_WAVE: Directory for measured binary data (BIN)

• TA_SETUP: Directory for set-up information

• TA_TEXT: Directory for measured text data (TEXT)

• TA_MISC: Directory for screen image data including set-up information (IMAGE)/statistical computation text data (STAT)

Note

• Floppy disks formatted in a format type other than those specified above cannot be used with this

instrument.

• If an error message is displayed after formatting, the floppy disk may be faulty.

• All the data stored on the floppy disk will be deleted when the floppy disk is formatted.

CAUTION

Never remove the floppy disk while the access indicator is blinking. Failure to do so may damage the magnetic head of the floppy disk drive or destroy the data saved on the floppy disk.

Saving and Loading the Data from a Floppy Disk

IM 704210-01E

9-3

9.3 Saving, Loading and Auto Loading the Set-up Information

Procedure

MODE

FUNCTION

DISPLAY

SAMPLE

INPUT

UTILITY

• To exit from the current menu, press any of the top menu keys or press the ESC touch key displayed on the screen.

UTILITY Top Menu

Displays the file menu.

Selects the UTILITY menu.

1. Insert a formatted floppy disk into the floppy disk drive.

2. Press the UTILITY key to display the UTILITY top menu.

3. Press the NEXT touch key to display NEXT 2/3 on the key.

Saving the set-up information

4. Press the FILE touch key to display the file menu.

• Selecting the item to be saved

5. Turn the rotary knob to highlight ITEM SETUP on the ITEM touch key to select the set-up

information.

• Setting the file name

6. Press the SAVE/LOAD touch key to display the save/load menu.

7. Press the SAVE touch key to display the save menu. A keyboard will be displayed.

8. Enter the desired file name using the keyboard. The file name will be displayed on the upper

left corner of the keyboard.

9. To correct the file name, press the < arrow key. Each time the < arrow key is pressed, the

cursor moves to the left one character, thus the characters of the file name are deleted one by one.

• Performing saving

10. After the file name is set, press the SAVE EXEC touch key to save the set-up information.

File menu

9-4

Displays the save/load menu.

Selects the set-up information.

Save/load menu

Displays the save menu.

Save menu

Displays the file name.

Keyboard

Performs saving.

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9.3 Saving, Loading and Auto Loading the Set-up Information

Loading the setup information

11. After step 6, turn the rotary knob to select the file name to be loaded.

12. Press the LOAD EXEC touch key.

Performs loading.

Selects the file name.

Loading the setup information automatically

• Saving the setup information to be loaded automatically

13. After step 4, press the AUTO SETUP touch key to display the auto setup menu.

14. Press the UPDATE touch key to highlight UPDATE.

15. Press the EXEC touch key to save the set-up information into the auto load file (i.e. the file from which the set-up information is to be loaded automatically). If set-up information already exists in the file, it will be updated.

• Loading the setup information automatically

16. Before turning ON the power switch of the instrument, insert the floppy disk containing the auto load file into the floppy disk drive.

17. Turn ON the power switch. An access will be made to the floppy disk automatically, and the set-up information saved in the auto load file will be loaded to the instrument.

• Loading the setup information when the instrument is already ON

18. After step 13, press the AUTOLOAD touch key to highlight AUTOLOAD.

19. Press the EXEC touch key to load the set-up information from the auto load file.

File menu

Displays the auto setup menu.

Auto setup menu

Loads the setup information when the instrument is already ON. Loads the setup information at power-on or selects updating of the set-up information.

Performs saving or updating.

Saving and Loading the Data from a Floppy Disk

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9-5

9.3 Saving, Loading and Auto Loading the Set-up Information

Explanation

Set-up information to be saved

Settings made and selected using touch keys, rotary knob and ten-key are saved. In addition, the set-up information stored in the internal memory is also saved in the auto load file.

File name extension and directory

An extension (.SET) is attached to the file name automatically, and the file is saved in the directory TA_SETUP. The auto load file is called AUTOLOAD.SET and saved in the root directory.

Data size

Each set-up information requires approximately 8 KB. The auto load file can contain data of approximately 50 KB in total.

Checking the free space available on a floppy disk

Refer to 9.2.

Entering the file name

• The file name must consist of 8 or less characters.

• The following characters can be used for file name. Alphabets (capital letter), numerical values, – (minus), _ (under-bar)

• The following file names cannot be used due to restrictions on MS-DOS. AUX, CON, PRN, NUL, CLOCK

• Saving under a file name already existing in the same directory is not allowed. (Overwriting is not allowed.)

Note

• Loading is not possible during measurement (i.e. while the START indicator is ON).

• If the extension of a file name is changed using a personal computer etc., it will be impossible to load that

file.

CAUTION

Never remove the floppy disk while the access indicator is blinking. Failure to do so may damage the magnetic head of the floppy disk drive or destroy the data saved on the floppy disk.

9-6

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9.4 Saving and Loading the Measured and Computed Data

Procedure

MODE

FUNCTION

DISPLAY

SAMPLE

INPUT

UTILITY

• To exit from the current menu, press any of the top menu keys or press the ESC touch key displayed on the screen.

UTILITY Top Menu

Displays the file menu.

Selects the UTILITY menu.

1. Insert a formatted floppy disk into the floppy disk drive.

2. Press the UTILITY key to display the UTILITY top menu.

3. Press the NEXT touch key to display NEXT 2/3 on the key.

Saving the measurement results

4. Press the FILE touch key to display the file menu.

• Selecting the item to be saved

5. Turn the rotary knob to highlight ITEM MEASDATA on the ITEM touch key. The

DATATYPE touch key will appear.

6. Press the DATATYPE touch key to highlight TEXT or BIN on the key. The highlighted data

type will be selected.

• Setting the file name

7. Refer to “Setting the file name” in 9.3.

• Performing saving

8. Refer to “Performing saving” in 9.3.

File menu

Displays the save/load menu.

Selects the measurement results.

Selects the data type.

Saving and Loading the Data from a Floppy Disk

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9-7

9.4 Saving and Loading the Measured and Computed Data

Loading the measurement results

9. After step 6, press the SAVE/LOAD touch key to display the save/load menu.

10. Refer to “Loading the setup information” in 9.3.

Saving the statistical computation results

• Selecting the item to be saved

11. After step 4, turn the rotary knob to highlight ITEM STAT on the ITEM touch key.

• Setting the file name

12. Refer to “Setting the file name” in 9.3.

• Performing saving

13. Refer to “Performing saving” in 9.3.

File menu

Displays the save/load menu.

Selects the statistical computation results.

9-8

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9.4 Saving and Loading the Measured and Computed Data

Explanation

Saving the measurement results

• Selecting the data type

Select the desired data type from the following.

• BIN: The measurement results are saved in binary format. Once they are saved, they can be loaded to the instrument.

• TEXT:

• Hardware histogram mode: Values (representative values) in the histogram window and their

frequency are saved in text format. They cannot be loaded to the instrument after they are saved.

• Time stamp mode: All the data (time stamps and measured values) of a measurement block

are saved in text format. They cannot be loaded to the instrument after they are saved.

• File name extension and directory

File name extension and directory vary depending on the data type. An appropriate extension is attached to the file name before the file is saved in its corresponding directory.

• BIN: “.WVF” is attached to the file name, and the file is saved in the directory TA_WAVE. The header file (ASCII format) is also saved at the same time. The header file contains the information to be used for analysis of the saved data. The extension for the header file is “.HDR”.

• TEXT: “.CSV” is attached to the file name, and the file is saved in the directory TA_TEXT.

• Data size

The data size varies depending on the number of samples (S) and data type. (Unit: bytes)

• BIN:

• Measured data obtained in hardware histogram mode: Approx. 133 K bytes (approx. 384 K

bytes for simultaneous positive/negative measurement of pulse width measurement)

• Measured data obtained in time stamp mode: Approx. 8 bytes × S + approx. 8 K bytes

• TEXT: The data size varies considerably depending on the selected sampling mode, sample size and histogram display etc. However, the maximum data size is approx. 1 M bytes.

Saving the statistical computation results

• File name extension and directory

“.CSV” is attached to the file name, and the file is saved in the directory TA_MISC.

• Data size

Each computation data requires approx. 500 bytes.

Checking the free space available on a floppy disk

Refer to 9.2.

Entering the file name

Refer to 9.3.

Note

• Loading and saving are not possible during measurement (i.e. while the START indicator is ON).

• Loading of measurement results (text format) and statistical computation results to this instrument is not

possible.

• If measurement results are loaded, the set-up information accompanying the loaded measurement results

will be used as the set-up information.

• If the extension of a file name is changed using a personal computer etc., it will be impossible to load that

file.

CAUTION

Never remove the floppy disk while the access indicator is blinking. Failure to do so may damage the magnetic head of the floppy disk drive or destroy the data saved on the floppy disk.

Saving and Loading the Data from a Floppy Disk

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9-9

9.5 Saving the Screen Image Data

Procedure

• To exit from the current menu, press any of the top menu keys or press the ESC touch key displayed on the screen.

UTILITY Top Menu

MODE

FUNCTION

DISPLAY

SAMPLE

INPUT

UTILITY

Displays the file menu.

Selects the UTILITY menu.

1. Insert a formatted floppy disk into the floppy disk drive.

2. Press the UTILITY key to display the UTILITY top menu.

3. Press the NEXT touch key to display NEXT 2/3 on the key.

Saving the screen image data

4. Press the FILE touch key to display the file menu.

• Selecting the item to be saved

5. Turn the rotary knob to highlight ITEM IMAGE on the ITEM touch key, to select the screen

image data.

• Setting the file name

6. Refer to “Setting the file name” in 9.3.

• Performing saving

7. Refer to “Performing saving” in 9.3.

File menu

Displays the save/load menu.

Selects the screen image data.

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9.5 Saving the Screen Image Data

Explanation

Saving the screen image data

The screen image data will be saved in TIFF format.

Sampling mode Measurement function Multi-window ON/OFF Channel A Input impedance (channel A) Input coupling (channel A) Trigger mode (channel A) Trigger level (channel A) Channel B Input impedance (channel B) Input coupling (channel B) Trigger mode (channel B) Trigger level (channel B) Gate type Sample size Sampling interval Arming source Arming delay type Inhibit ON/OFF

File name extension and directory

“.TIF” is attached to the file name, and the file is saved in the directory TA_MISC.

Data size

Each screen image data requires approx. 11 K bytes.

Checking the free space available on a floppy disk

Refer to 9.2.

Entering the file name

Refer to 9.3.

Note

• Saving is not possible during measurement (i.e. while the START indicator is ON).

• Loading of the screen image data to this instrument is not possible.

CAUTION

Never remove the floppy disk while the access indicator is blinking. Failure to do so may damage the magnetic head of the floppy disk drive or destroy the data saved on the floppy disk.

Saving and Loading the Data from a Floppy Disk

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9-11

9.6 Auto Saving the Screen Image Data

Procedure

• To exit from the current menu, press any of the top menu keys.

COPY menu

Selects the copy destination (floppy).

Performs copying.

1. Insert a formatted floppy disk into the floppy disk drive.

Selecting the floppy disk as copy destination.

2. Press the COPY key to display the COPY menu.

3. Press the FLOPPY/PLOTTER touch key to highlight FLOPPY.

Performing copying

4. Press the EXEC touch key.

Explanation

Saving the screen image data automatically

The screen image data will be saved in TIFF format. For items to be saved, refer to 9.5.

File name

A file name is assigned to each screen image data automatically, starting with TA000 up to TA1000 sequentially. When TA1000 is reached, auto saving will be disabled.

File name extension, directory, data size and checking the free space available on a floppy disk

Refer to 9.5.

Note

• Saving is not possible during measurement (i.e. while the START indicator is ON).

• Loading of the screen image data to this instrument is not possible.

CAUTION

Never remove the floppy disk while the access indicator is blinking. Failure to do so may damage the magnetic head of the floppy disk drive or destroy the data saved on the floppy disk.

9-12

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9.7 Deleting Saved Data

Procedure

• To exit from the current menu, press any of the top menu keys or press the ESC touch key displayed on the screen.

UTILITY Top Menu

MODE

FUNCTION

DISPLAY

SAMPLE

INPUT

UTILITY

Displays the file menu.

Selects the UTILITY menu.

1. Insert a formatted floppy disk into the floppy disk drive.

2. Press the UTILITY key to display the UTILITY top menu.

3. Press the NEXT touch key to display NEXT 2/3 on the key.

Selecting the item to be deleted

4. Press the FILE touch key to display the file menu.

5. Turn the rotary knob to highlight the desired item on the ITEM touch key. The highlighted

item to be deleted will be selected.

Selecting the name of the file to be deleted

6. Press the SAVE/LOAD touch key to display the save/load menu.

7. Turn the rotary knob to highlight the file to be deleted.

8. Press the DELETE SET touch key. An asterisk “ * ” will be displayed on the left of the

selected file name, indicating the file to be deleted has been selected. Pressing the DELETE SET touch key again causes the asterisk to disappear, indicating that selection of the file has been canceled.

Performing deletion

9. After the file to be deleted has been selected, press the DELETE EXEC touch key to delete

the file.

File menu

Displays the save/load menu.

Selects the item to be deleted.

Save/load menu

Asterisk

Selects the file to be deleted.

Performs deletion.

Saving and Loading the Data from a Floppy Disk

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9-13

9.7 Deleting Saved Data

Explanation

To delete data (file), select the file type (item) according to steps 4 and 5, then select the name of the file to be deleted.

Note

Once data is deleted, it will not be possible to recover the data again. So take special care not to delete the wrong file by mistake.

CAUTION

Never remove the floppy disk while the access indicator is blinking. Failure to do so may damage the magnetic head of the floppy disk drive or destroy the data saved on the floppy disk.

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YOKOGAWA TA320 User Manual

Specifications and Main Features

Frequently Asked Questions

User Manual

Foreword

Checking the Contents of the Package

Safety Precautions

Structure of the Manual

Notations and Symbols Used in this Manual

Contents

1.1 System Configuration and Block Diagram

1.2 Measuring Principles and Sampling Mode

1.3 Measurement Functions (Measurement Items)

1.4 Computation

Readout Function ≡For operating procedure, refer to 7.1 and 7.5≡

1.5 Setting the Acquisition Conditions for Input Signal to be Measured

Inhibit ≡For operating procedure, refer to 6.4≡

1.6 Displaying the Measured/Computed Data

1.7 Other Functions

2.1 Front Panel

2.2 Rear Panel

3.1 Usage Precautions

3.2 Installing the Instrument

3.3 Connecting the Power Cord

3.4 Turning the Power Switch ON/OFF

3.5 Connecting the Cables/Probes

3.6 Compensating a Probe (Carrying Out Phase Correction)

3.7 Setting the Date and Time

4.1 Starting/Stopping Acquisition of a Measuring Input Signal

4.2 Setting Numerical Values

5.1 Selecting the Sampling Mode

5.2 Setting Period Measurement

5.3 Setting Time Interval Measurement

5.4 Setting Pulse Width Measurement

5.5 Setting Phase Difference Measurement

5.6 Setting Duty Ratio Measurement

6.4 Setting the Inhibit Function

7.1 Setting the Histogram Display Function and Reading the Data (Readout)

7.2 Using the Multi-window Function

7.3 Using the Panorama Display Function

7.4 Carrying out Histogram Data Addition

7.5 Setting the Time Variation Display Function and Reading the Data (Readout)

7.6 Selecting the List Display Function and Displaying the Data

7.7 Selecting the Statistics Display Function and Reading the Statistic Data

8.1 Storing the Set-up Information in the Internal Memory

8.2 Recalling the Set-up Information from the Internal Memory

9.1 Points to Note during Use of the Floppy Disk Drive

9.2 Formatting a Floppy Disk

9.3 Saving, Loading and Auto Loading the Set-up Information

9.4 Saving and Loading the Measured and Computed Data

9.5 Saving the Screen Image Data

9.6 Auto Saving the Screen Image Data

9.7 Deleting Saved Data