Hioki MR8790, MR8791, U8793 Instruction Manual

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U8793

HIOKI U8793A981-05

MR8790

Instruction Manual

MR8791

ARBITRARY WAVEFORM GENERATOR UNIT

WAVEFORM GENERATOR UNIT

PULSE GENERATOR UNIT

Apr. 2022 Revised edition 5 U8793A981-05 22-04H

*600464785*

HIOKI U8793A981-05

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

Verifying Package Contents ..................... 2

Safety Information ..................................... 2

Operating Precautions .............................. 5

1 Overview 7

1.1 Features ............................................ 7

1.2 Part Names and Functions .............. 8

1.3 Inspecting the Module before Use .. 9

2 Connecting the Module 11

2.1 Installing the Module in and Removing the Module from a

Memory HiCorder ............................11

Installing the module ................................... 11

Removing the module ................................. 11

2.2 Connecting Cables to the

Output Terminals ............................ 12

2.3 Output Terminals ............................ 13

2.4 Connecting Wires to the External Control Terminals

(U8793) ............................................ 14

3 Signal Generation

Settings Screen 15

5 Setting Pulse and Pattern

Output (MR8791) 41

5.1 Setting the Mode ............................ 41

5.2 Setting the Pulse Mode .................. 43

Setting the frequency ..................................43

Setting the duty cycle ..................................45

Setting the output conguration ..................47

Setting output (MR8847A, MR8827,

MR8740, and MR8741) ................................. 49

Setting the Use to On or Off

(for MR6000 and MR8740T) .......................50

5.3 Setting the Pattern Mode ............... 51

Setting the output conguration ..................51

Setting the pattern to use ............................53

Method for registering a pattern ..................55

Setting the clock frequency .........................59

Setting output (MR8847A, MR8827,

MR8740, and MR8741) ..............................61

Setting the Use to On or Off

(for MR6000 and MR8740T) .......................62

6 Sweep Setting (U8793) 63

6.1 Selecting the Sweep Type ............. 63

6.2 Setting the Start Value ................... 65

6.3 Setting the End Value .................... 67

6.4 Setting the Sweep Time ................. 69

Method for copying and pasting channel

settings .......................................................16

4 Waveform Settings

(U8793 and MR8790) 19

Method for setting values ............................20

4.1 Setting the Waveform Type ........... 24

4.2 Setting the Frequency ................... 26

4.3 Setting the Amplitude .................... 28

4.4 Setting the Offset ........................... 30

4.5 Setting the Duty Cycle (Pulse

Wave Output Only) ......................... 32

4.6 Setting the Phase ........................... 34

4.7 Setting the Output to On or Off (MR8847A, MR8827, MR8740,

and MR8741) ................................... 36

4.8 Setting the Sync Use to On or Off

(MR6000 and MR8740T) ................. 38

4.9 Setting Behavior When Output

is Off ................................................ 39

7 Arbitrary Waveform

Settings (U8793) 71

7.1 Setting the Waveform Type ........... 71

7.2 Registering a Waveform ................ 73

Registering data measured with a

Memory HiCorder .......................................76

Registering data created with the

SF8000 Waveform Maker ...........................81

7.3 Setting the Clock Frequency ......... 85

7.4 Setting Amplitude Adjustment ...... 88

7.5 Setting the Offset ........................... 90

7.6 Setting the Delay ............................ 92

7.7 Setting the Iteration Count for the

Loop (When Sweep Is Disabled) ..... 94

7.8 Setting the Filter ............................. 96

7.9 Setting the Output to On or Off (MR8847A, MR8827, MR8740,

and MR8741) ................................... 98

7.10 Setting the Sync Use to On or Off

(MR6000 and MR8740T) ............... 100

7.11 Setting Behavior When Output

is Off .............................................. 101

U8793A981-05

Contents

HIOKI U8793A981-05

7.12 Saving the Arbitrary Waveform

(MR6000 and MR8740T) ............... 103

7.13 Editing the Arbitrary Waveform

(MR6000) ....................................... 104

8 Program Settings

(U8793) 105

8.1 Switching to the Program

Settings Screen ............................ 105

8.2 Editing the Program ..................... 107

Opening the Edit screen ...........................107

Conguring each step ............................... 11 0

Ending program editing ............................. 11 5

8.3 Setting the Overall Number of

Loops .............................................116

8.4 Setting the Filter ............................118

8.5 Saving/Loading the Edited

Program ........................................ 120

8.6 Checking Program Progress ....... 125

9 Outputting Signals 127

9.1 Setting the Control Method ......... 127

9.2 Setting Output When

Measurement Completes ............. 130

9.3 Controlling Signal Output ........... 131

10 ConguringSettingson

the Waveform Screen (MR8847A, MR8827, MR8740, and MR8741) 135

10.1 Setting Output Waveform

Parameters .................................... 135

To display the waveform and output parameter settings in separate windows ..136

10.2 Waveform Type and Output

Status Display .............................. 138

11 Self-test Function

(MR8847A, MR8827, MR8740, and MR8741) 139

11.1 Monitoring Output Values with

Test Output ................................... 139

12 External Control

Terminal (U8793) 143

12.1 External Input ............................... 144

12.2 External Output ............................ 145

13 Waveform Maker 147

13.1 Overview of the SF8000

Waveform Maker ........................... 147

Operating environment .............................147

Functional specications ...........................147

13.2 Installing the SF8000 Application 149

13.3 Launching and Exiting the

SF8000 Application ...................... 151

Launching the application .........................151

Exiting the application ...............................152

13.4 Uninstalling the SF8000

Application .................................... 153

13.5 SF8000 Screen .............................. 154

Setting the display format .........................155

Setting the time axis range .......................156

Input mode screens .................................156

13.6 Arbitrary Waveform Input Mode .. 158

Basic instructions ......................................158

Editing mode .............................................159

Waveform creation ....................................160

Properties .................................................162

Calculations using previously input

waveforms ................................................163

13.7 Function Input Mode .................... 164

Basic instructions ......................................164

Example of program creation ....................164

Expressions and operations .....................165

Control words ............................................166

Functions ..................................................168

Usable characters .....................................171

13.8 Step Input Mode ........................... 172

Basic instructions ......................................172

Example of waveform creation .................172

Start and end point settings ......................172

Waveform type and settings .....................172

Editing steps .............................................173

Reordering the display ..............................173

13.9 Interpolation Input Mode ............. 174

Basic instructions ......................................174

Editing mode .............................................176

Dot data list ...............................................177

Interpolation method .................................178

13.10 Pulse Pattern Mode ...................... 179

Basic instructions ......................................179

Example of waveform creation .................180

13.11 Transferring Data ......................... 181

13.12 Saving and Loading Data ............ 183

Saving and loading all data .......................183

HIOKI U8793A981-05

Saving and loading data for an

individual input mode (import, export) .......184

14 Specications 187

14.1 U8793 Arbitrary Waveform

Generator Unit .............................. 187

General specications ..............................187

Output specications ................................187

Sweep function specications ...................189

Program functional specications .............189

Other specications ..................................190

14.2 MR8790 Waveform Generator

Unit ................................................ 191

General specications ..............................191

Voltage output specications ....................192

14.3 MR8791 Pulse Generator Unit ..... 193

General specications ..............................193

Pulse output specications .......................194

Pattern output specications .....................194

Output connector specications ................194

Contents

15 Maintenance and

Service 197

15.1 Cleaning the Module .................... 197

15.2 Troubleshooting ........................... 198

15.3 Error Messages ............................ 199

Index 201

iii

Contents

HIOKI U8793A981-05

Introduction

HIOKI U8793A981-05

Thank you for purchasing the Hioki U8793 Arbitrary Waveform Generator Unit, MR8790 Waveform Generator Unit and MR8791 Pulse Generator Unit. To obtain maximum performance from the module,

please read this manual rst, and keep it handy for future reference.

Latest edition of instruction manual

The contents of this manual are subject to change, for example as a result of

product improvements or changes to specications.

The latest edition can be downloaded from Hioki’s website.

https://www.hioki.com/global/support/download

Trademark

Windows is a registered trademark or a trademark of Microsoft Corporation in the United States and other

countries.

Verifying Package Contents

HIOKI U8793A981-05

Verifying Package Contents

When you receive the module, inspect it carefully to ensure that no damage occurred during shipping. In particular, check the connectors. If damage is evident, or if it fails to operate according to the

specications, contact your authorized Hioki distributor or reseller.

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

Safety Information

This module is designed to conform to IEC 61010 Safety Standards, and has been thoroughly tested for safety prior to shipment. However, using the module in a way not described in this manual may negate the provided safety features. Before using the module, be certain to carefully read the following safety notes.

DANGER

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

WARNING

With regard to the electricity supply, there are risks of electric shock, heat

generation, re, and arc discharge due to short circuits. If persons unfamiliar

with electrical measuring instrument are to use the instrument, another person familiar with such instruments must supervise operations.

Notations

HIOKI U8793A981-05

In this manual, the risk seriousness and the hazard levels are classied as follows.

Safety Information

DANGER

WARNING

CAUTION

IMPORTANT

(p. )

CURSOR

(bold)

Indicates an imminently hazardous situation that will result in death or serious injury to

the operator.

Indicates a potentially hazardous situation that may result in death or serious injury to

the operator.

Indicates a potentially hazardous situation that may result in minor or moderate injury

to the operator or damage to the module or malfunction.

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

Indicates a high voltage hazard.

If a particular safety check is not performed or the module is mishandled, this may

give rise to a hazardous situation; the operator may receive an electric shock, may get

burnt or may even be fatally injured.

Indicates a prohibited action.

Indicates the action which must be performed.

Indicates the location of reference information.

Bold alphanumeric characters in this text show characters appeared on the operation keys.

[ ]

Menus, commands, dialogs, buttons in a dialog, and other names on the screen are indicated in brackets.

Additional information is presented below.

Symbols on the module

Indicates cautions and hazards. When the symbol is printed on the module, refer to a

corresponding topic in the Instruction Manual.

Indicates a fuse.

Indicates a grounding terminal.

Indicates DC (Direct Current).

Indicates AC (Alternating Current).

Symbols for standards

Indicates that the product conforms to regulations required by the EU Directive.

Safety Information

HIOKI U8793A981-05

Accuracy

The instrument accuracy is expressed by dening a percentage of the setting.

Setting Indicates the voltage, current, or other value that the instrument has been

congured to output. Limit values for setting errors are expressed as a

percentage of the setting (“% of setting”).

Measurement categories

To ensure safe operation of measuring instruments, IEC 61010 establishes safety standards

for various electrical environments, categorized as CAT II to CAT IV, and called measurement

categories.

DANGER

• Using a measuring instrument in an environment designated with a higher-

numbered category than that for which the instrument is rated could result in a severe accident, and must be carefully avoided.

• Using a measuring instrument without categories in an environment designated

with the CAT II to CAT IV category could result in a severe accident, and must be carefully avoided.

CAT II: When directly measuring the electrical outlet receptacles of the primary electrical

circuits in equipment connected to an AC electrical outlet by a power cord (portable tools, household appliances, etc.).

CAT III: When measuring the primary electrical circuits of heavy equipment (xed installations)

connected directly to the distribution panel, and feeders from the distribution panel to outlets.

CAT IV: When measuring the circuit from the service drop to the service entrance, and to the

power meter and primary overcurrent protection device (distribution panel).

Distribution panel

Service entrance

Service drop

CAT IV

Power meter

Fixed installation

Internal wiring

CAT III

CAT II

Outlet

Operating Precautions

HIOKI U8793A981-05

Operating Precautions

Check before use

Use of the devices should conrm not only to their specications, but also to the specications of all

options and other equipment in use.

DANGER

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

• Before using the module, make sure that the insulation on the cables are

undamaged and that no bare conductors are improperly exposed. If there is any

damage on the cable, replace it with those specied by our company.

• Before using the module for the rst time, verify that it operates normally to

ensure that no damage occurred during storage or shipping. If you nd any

damage, contact your authorized Hioki distributor or reseller.

Module installation

WARNING

Installing the module in inappropriate locations may cause a malfunction of module or may give rise to an accident. Avoid the following locations.

• Exposed to direct sunlight or high temperature

• Exposed to corrosive or combustible gases

• Exposed to a strong electromagnetic eld or electrostatic charge

• Near induction heating systems (such as high-frequency induction heating

systems and IH cooking equipment)

• Susceptible to vibration

• Exposed to water, oil, chemicals, or solvents

• Exposed to high humidity or condensation

• Exposed to high quantities of dust particles

Operating Precautions

HIOKI U8793A981-05

Handling of the module

• Do not exceed the module or cable ratings or specications range.

• To avoid electric shock, do not remove the module's case.

The internal components of the module carry high voltages and may become very hot during operation.

• To avoid electric shock accident, before removing or replacing the module,

conrm that the Memory HiCorder is turned off and that the connection cables

are disconnected.

• To avoid the danger of electric shock, never operate the Memory HiCorder

with the module removed. Install a blank panel in the Memory HiCorder after removing the module.

• To avoid damage to the module or electric shock accident, use original screws

from the factory shipment for fastening the module. If any of the screws is lost or there is any damage on the module, contact your authorized Hioki distributor or reseller.

DANGER

WARNING

CAUTION

• To avoid damage to the module, do not touch the connectors to be inserted into the Memory HiCorder.

• Do not perform measurements when the blank panel of the Memory HiCorder has been removed. This condition will cause unstable temperature in the module and

does will not satisfy the specications.

• To avoid damage to the module, protect it from physical shock when transporting and handling. Be especially careful to avoid physical shock from dropping.

• The mounting screws must be rmly tightened or the module may not perform to

specications, or may even fail.

This module may cause interference if used in residential areas. Such use must be avoided unless the user takes special measures to reduce electromagnetic emissions to prevent interference to the reception of radio and television broadcasts.

Precautions during transportation

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

HIOKI U8793A981-05

Overview

1.1 Features

The U8793, MR8790, and MR8791 are Memory HiCorder modules designed to output basic waveforms such as sine waves and rectangular waves, user-created waveforms, logic patterns, and other signals. (Models vary by the type of waveform they can output.) Since a single Memory HiCorder can accommodate the U8793, MR8790, or MR8791 along with one or more measurement modules, it is possible to both measure and generate waveforms with one instrument.

U8793 Arbitrary Waveform Generator Unit

Each module provides two channels of output. Since output channels

Isolated-channel

output

Maximum output

voltage of 15 V

Channel synchronization

Sweep functionality

are isolated from the host Memory HiCorder’s chassis as well as from each other, the instrument can be connected to other devices that operate at a different potential. (The maximum rated terminal-to-ground voltage is limited to 30 V AC RMS or 60 V DC.)

The module can output up to 15 V. This capability eliminates the need to

connect the module’s output to an external amplier prior to simulating

a signal from an automotive sensor or other device, enabling output signals to be applied directly.

Phase can be set between channels on the same module and between channels on different modules.

Sweep functionality is provided for frequency, amplitude, offset, and duty cycle (pulse waves only).

Overview

Program function

Observed

waveform output

Users can set an output waveform type, generation duration, and the iteration count for the loop for each step.

The module can load waveform data measured by the Memory HiCorder and then output a waveform that is identical to the observed waveform, enabling use in applications such as reproduction testing.

MR8790 Waveform Generator Unit

Each module provides four channels of output. Since output channels are

Isolated-channel

output

High-precision

DC output

isolated from the host Memory HiCorder’s chassis as well as from each other, the instrument can be connected to other devices that operate at a different potential. (The maximum rated terminal-to-ground voltage is limited to 30 V AC RMS or 60 V DC.)

Thanks to its ability to generate high-precision DC output with an output accuracy of ±0.6 mV, the MR8790 can generate output simulating the minuscule voltage variations of sensor output.

MR8791 Pulse Generator Unit

Each module provides eight channels of output. Output channels are

Multichannel

output

isolated from the host Memory HiCorder’s chassis. (Output channels are not isolated from each other.) (The maximum rated terminal-toground voltage is limited to 30 V AC RMS or 60 V DC.)

Wide selection

of output modes

Depending on the conguration, each channel can generate

independent pulse output, or all channels can generate synchronized pattern output. In addition, users can select either TTL level logic output or open-collector output as the output type (for each channel).

Part Names and Functions

HIOKI U8793A981-05

1.2 Part Names and Functions

Front (U8793)

Output indicators

Indicators turn red during waveform output.

Output terminals (p. 6)

External control terminals (p. 6)

Front (MR8790)

Front (MR8791)

Output terminals (p. 6)

Output connector (p. 6)

Inspecting the Module before Use

HIOKI U8793A981-05

1.3 Inspecting the Module before Use

Before using the module, inspect it to ensure that it did not sustain any damage during storage or transport and that it is operating properly. If you discover any damage, contact your authorized Hioki distributor or reseller.

(1) Inspecting connection cables

Overview

Is the insulation on the connection cable damaged, or is any metal exposed?

(2) Inspecting the module

Is the module damaged?

When turning on the instrument

For MR8847A, MR8827, MR8740, and MR8741

Can you select the [Generator] tab

when you press

(CHAN)?

Yes

Proceed to (2).

Yes

Not displayed

Do not use the module as cable damage may result in electric shock. Have the module repaired.

If the module is damaged, have it repaired.

One or more of the module’s internal components may be damaged. Have it repaired.

For MR6000 and MR8740T

Are generation modules you installed

included in the conguration list?

Can select. / Included.

Inspection complete

Inspecting the Module before Use

HIOKI U8793A981-05

Connecting the Module

2.1 Installing the Module in and Removing the Module from a Memory HiCorder

For more information about how to install the module, see the Memory HiCorder’s instruction manual.

You will need: Phillips head screwdriver (No. 2)

Installing the module

Example: U8793

Removing the module

Example: U8793

Turn off the Memory HiCorder into which

you will install the module.

Exercising care to orient the module

properly, insert it rmly as far as it will go.

Orient the module so that the lettering on its front faces the same direction as the lettering on the host Memory HiCorder.

Securely tighten the fastening screws

on the module with the Phillips head screwdriver.

Connecting the Module

Handles

Turn off the Memory HiCorder from which

you will remove the module.

Disconnect all connection cables,

thermocouples, and other devices that are connected to the module.

Loosen the fastening screws on the

module with the Phillips head screwdriver.

Gripping the handles, pull the module

towards you.

Attach the blank panel to cover the

opening on the Memory HiCorder from which you removed the module.

Connecting Cables to the Output Terminals

HIOKI U8793A981-05

2.2 Connecting Cables to the Output Terminals

Be sure to use only Hioki-specied connection cables with the module. Use of other cables may

prevent the module from generating waveforms accurately due to poor contact or other issues.

U8793 and MR8790

You will need: L9795-01 Connection Cable or L9795-02 Connection Cable

Example: U8793

Output terminals

Insert the connection cable’s SMB connector

into the module’s output terminal until you hear it click into place.

Connect the target device to the clip side of

Connecting connection cables

the connection cable.

Output terminal

SMB connector

Connect to target device.

Disconnecting cables from the output terminals

Grip the cable by the SMB connector (not the cable itself) and pull toward you to disconnect the cable.

MR8791

HIOKI U8793A981-05

You will need: Connection cable

Output connector

Connecting the connection cable

Output connector

Buttons

Connection cable connector

Output Terminals

Connect the connection cable’s connector to

the module’s output connector.

Connect the connection cable to the device

being measured.

To disconnect the cable from the output terminal

Pull the connection cable’s connector toward you while depressing the buttons on the connector to disconnect the cable.

Connecting the Module

Connect to measurement target.

2.3 Output Terminals

The allowable load resistance for the module’s analog output terminals is 1.5 kΩ or greater (U8793) or 2 kΩ or greater (MR8790). Do not connect a load whose resistance is less than the allowable load resistance or short the module’s

outputs. Doing so may damage the module or cause a re.

Do not apply a voltage from outside the device to the analog output terminals. Doing so may damage the module.

WARNING

CAUTION

Connecting Wires to the External Control Terminals (U8793)

HIOKI U8793A981-05

2.4 Connecting Wires to the External Control Terminals (U8793)

The following describes how to connect wires to the module’s external control terminals.

Procedure

You will need

10 mm

Single-strand wire

Stranded wire

Connection method

Compatible wires: Single-strand wire φ0.65 mm (22 AWG)

Twisted wire 0.32 mm2 (22 AWG) Usable wire: Single-strand wire φ0.32 to φ0.65 mm (28 to 22 AWG) Stranded wire 0.08 to 0.32 mm2 (28 to 22 AWG)

Strand diameter φ0.12 mm (per strand) Standard stripped wire length: 9 to 10 mm Tool for manipulating terminal buttons: Flat-head screwdriver (with a shaft

diameter of φ3 mm and a tip width of 2.6 mm)

Depress the terminal button with a

athead screwdriver or other tool.

Insert the wire into the wire connection

hole while continuing to depress the button.

Release the button.

The wire will be locked in place.

Terminal

no.

1 OUT: Outputs a low-level signal during

waveform output.

2 IN: When using the program function,

inputting a low-level signal from an external device will cause the module to cancel the hold state and transition to the next step.

3 GND terminal

(same potential as the Memory HiCorder’s GND)

Operation

Signal Generation Settings

HIOKI U8793A981-05

Screen

Switch to the Generator screen (signal generation settings screen) and set the output channel.

When the module is installed in a Memory HiCorder, the instrument will display the Generator screen.

For MR8847A, MR8827, MR8740, and MR8741

Signal Generation Settings Screen

Press (CHAN).

Select the [Generator] tab.

Press (CH.

SET

) or (TRIG.

SET

) and select the module.

HIOKI U8793A981-05

Method for copying and pasting channel settings

1, 3

2, 4

Select the source channel’s [Ch] setting.

Press a function key (F1 to F5) or select [Copy] with the mouse.

Copy Copies the settings.

Move the cursor to the [Ch] setting to which you wish to paste the settings.

Press a function key (F1 to F5) or select a button with the mouse.

Paste Pastes the copied settings.

Paste All Pastes the settings to all channels.

> [Channel]

HIOKI U8793A981-05

For MR6000 and MR8740T

(MR6000 only)

If the CAN/LIN interface is connected, tap the UNIT/CAN switching box, and then from the list, choose [UNIT].

Tap the unit number’s tab where a Generator Unit has been installed.

Signal Generation Settings Screen

HIOKI U8793A981-05

Waveform Settings

HIOKI U8793A981-05

(U8793 and MR8790)

This section describes the settings that are available when a U8793 Arbitrary Waveform Generator Unit or an MR8790 Waveform Generator Unit is selected on the Generator screen (signal

generation settings screen) (p. 15).

The following parameters can be set (except with the two waveform types: [Arbitrary] and

[Program]):

Type Selects the type of waveform. p. 24

Frequency Sets the frequency. p. 26

Amplitude Sets the amplitude. p. 28

Offset Sets the offset. p. 30

Duty cycle Sets the duty cycle. p. 32

Phase Sets the phase. p. 34

When Off Sets the output terminal state to use when waveform output is

stopped.

Output Turns output on or off. p. 39

(When the sweep setting is enabled)

Sweep Time Sets the sweep time. p. 69

p. 36

Waveform Settings (U8793 and MR8790)

HIOKI U8793A981-05

Method for setting values

For MR8847A, MR8827, MR8740, and MR8741

Parameters that are set as values can be entered using either the [Up-Down] (arrow key input) method or the [Tenkey entry] (numeric input) method.

After selecting the [Up-Down] method

Press a function key (F1 to F5) or select a button with the mouse.

Moves one digit to the left.

Moves one digit to the right.

Increases the value.

Decreases the value.

Accepts the value.

After selecting [Tenkey entry]

HIOKI U8793A981-05

Press a function key (F1 to F5) or select a button with the mouse.

Set

Backspace Deletes the most recently entered value, unit, etc.

Clear Deletes all entered values.

Conrm Accepts the value.

Enters the selected value, unit, etc.

Waveform Settings (U8793 and MR8790)

HIOKI U8793A981-05

For MR6000 and MR8740T

You can enter values using the numeric keypad ([Numeric Keypad]) or the Up Arrow and Down Arrow keys ([Up Down]).

Tap a button under [Loggingln] to choose a way of entering values.

Numeric keypad Lets you use the numeric keypad.

Up Down Lets you use the Up Arrow and Down Arrow keys

When you choose [Up Down]

2 3

Tap a parameter you wish to change its value.

The window including the Up Arrow and Down Arrow keys will be displayed.

Change the value.

Tap the and keys respectively to increase and decrease the value. When the output is set to on,

the change in the value will immediately be applied to the output.

Tap [OK] to conrm the set value.

If you do not wish to change it, tap [Cancel].

When you choose [Numeric keypad]

HIOKI U8793A981-05

Tap a parameter you wish to change its value.

The numeric keypad will be displayed.

Change the value.

Tap [OK] to conrm the set value.

If you do not wish to change it, tap [Cancel].

You can enter a value given to ve signicant gures using the frequency setting’s numeric

keypad.

If you wish to enter a value given to more signicant gures, use the Up Arrow and Down Arrow

keys.

Waveform Settings (U8793 and MR8790)

Setting the Waveform Type

HIOKI U8793A981-05

4.1 Setting the Waveform Type

For MR8847A, MR8827, MR8740, and MR8741

Select the [Type] setting.

Press a function key (F1 to F5) or select a button with the mouse.

DC Outputs a DC waveform.

Sine Outputs a sine wave.

Square Outputs a rectangular wave with a xed duty cycle of 50% (U8793 only).

Pulse Outputs a pulse wave with variable duty cycle (U8793 only).

Triangle Outputs a triangular wave (U8793 only).

Ramp-up Outputs a ramp-up wave (U8793 only).

Ramp-down Outputs a ramp-down wave (U8793 only).

Arbitrary Outputs a user-created waveform (U8793 only). (p. 71)

Program Outputs a waveform in accordance with the edited program (U8793 only).

(p. 105)

Examples of waveforms that can be output

DC Sine wave Square wave Pulse wave

Triangular wave Ramp-up wave Ramp-down wave

HIOKI U8793A981-05

Setting the Waveform Type

For MR6000 and MR8740T

Tap a waveform type you wish to generate.

DC Outputs a DC signal.

Sine Outputs a sine wave.

Square Outputs a square wave with a duty cycle of 50% (U8793 only).

Pulse Outputs a pulse wave whose duty cycle is adjustable (U8793 only).

Triangle Outputs a triangular wave (U8793 only).

RampUp Outputs a ramp-up wave (U8793 only).

RampDown Outputs a ramp-down wave (U8793 only).

Arbitrary Outputs a created arbitrary waveform (U8793 only). (p. 71)

Program Outputs a waveform according to a previously edited program (U8793 only).

(p. 105)

Waveforms that can be output

Waveform Settings (U8793 and MR8790)

DC Sine Square Pulse

Triangle Ramp-up Ramp-down

Setting the Frequency

HIOKI U8793A981-05

4.2 Setting the Frequency

For MR8847A, MR8827, MR8740, and MR8741

Select the [Frequency] setting.

Press a function key (F1 to F5) or select a button with the mouse.

Sweep p. 63

Up-Down p. 20

Tenkey entry p. 21

Period Allows you to enter the setting as a period instead of a frequency. This value

can be set only by means of numeric keypad input. (p. 21)

Valid frequency setting range:

U8793: 0 Hz to 100 kHz (in 0.01 Hz increments) MR8790: 0 Hz to 20 kHz (in 1 Hz increments)

Valid period setting range:

U8793: 0 sec. to 100 sec. MR8790: 0 sec. to 1 sec.

The period can be set as desired within the above range. However, the period of the waveform that is actually output will be the period of the waveform corresponding to the valid frequency setting that would produce the period closest to the user-entered period value.

For MR6000 and MR8740T

HIOKI U8793A981-05

Setting the Frequency

Tap [Frequency] or [Period] to choose.

You can enter the frequency or period of the output waveform. The displayed items differ between [Frequency] and [Period].

Tap the [Frequency] setting (the [Period] setting if you choose period).

Enter the frequency using the Up Arrow and Down Arrow keys or the numeric keypad.

Waveform Settings (U8793 and MR8790)

Valid frequency setting range:

U8793: 0 Hz to 100 kHz (in 0.01 Hz increments) MR8790: 0 Hz to 20 kHz (in 1 Hz increments)

Valid period setting range:

U8793: 0 sec. to 100 sec. MR8790: 0 sec. to 1 sec.

You can enter any period within the range mentioned above. However, the actual output waveform will have a period rounded off to the nearest valid value in frequency.

Setting the Amplitude

HIOKI U8793A981-05

4.3 Setting the Amplitude

For MR8847A, MR8827, MR8740, and MR8741

Select the [Amplitude] setting.

Press a function key (F1 to F5) or select the sweep setting and numerical entry method

with the mouse.

Sweep p. 63

Up-Down p. 20

Tenkey entry p. 21

Valid amplitude setting range: 0 V p-p to 20 V p-p (in 1 mV p-p increments)

The output voltage (amplitude + offset) range for which accuracy is guaranteed for each module is as follows:

U8793: −10 V to +15 V MR8790: −10 V to +10 V

If the sum of the amplitude and offset is set to out of the accuracy guarantee range, the output waveform will partly be clamped on the following limits:

U8793: Upper limit of about +16 V, lower limit of about −11 V MR8790: Upper limit of about +14 V, lower limit of about −14 V

HIOKI U8793A981-05

Setting the Amplitude

For MR6000 and MR8740T

Tap the [Amplitude] setting.

Enter the amplitude using the Up Arrow and Down Arrow keys or the numeric keypad.

Valid amplitude setting range: 0 V p-p to 20 V p-p (in 1 mV p-p increments) Each module’s accuracy of output voltage, which is the sum of the amplitude and offset, is

guaranteed only if the voltage falls within the following range:

U8793: −10 V to +15 V MR8790: −10 V to +10 V

If the sum of the amplitude and offset is set to out of the accuracy guarantee range, the output waveform will partly be clamped on the following limits:

U8793: Upper limit of about +16 V, lower limit of about −11 V MR8790: Upper limit of about +14 V, lower limit of about −14 V

Waveform Settings (U8793 and MR8790)

Setting the Offset

HIOKI U8793A981-05

4.4 Setting the Offset

For MR8847A, MR8827, MR8740, and MR8741

Select the [Offset] setting.

Press a function key (F1 to F5) or select a button with the mouse.

Sweep p. 63

Up-Down p. 20

Tenkey entry p. 21

Valid offset setting range: −10 V to + 15 V (in 1 mV increments) (U8793)

−10 V to + 10 V (in 1 mV increments) (MR8790)

When the waveform type is set to DC, the set offset value determines the DC voltage that is output.

Each module’s accuracy of output voltage, which is the sum of the amplitude and offset, is

guaranteed only if the voltage falls within the following range:

U8793: −10 V to +15 V MR8790: −10 V to +10 V

If the sum of the amplitude and offset is set to out of the accuracy guarantee range, the output waveform will partly be clamped on the following limits:

U8793: Upper limit of about +16 V, lower limit of about −11 V MR8790: Upper limit of about +14 V, lower limit of about −14 V

For MR6000 and MR8740T

HIOKI U8793A981-05

Setting the Offset

Tap the [Offset] setting.

Enter the offset using the Up Arrow and Down Arrow keys or the numeric keypad.

Valid offset setting range: −10 V to +15 V (in 1mV increments)

If you set the waveform type to DC, the DC with a voltage of the set offset value will be output.

Each module’s accuracy of output voltage, which is the sum of the amplitude and offset, is

guaranteed only if the voltage falls within the following range:

U8793: −10 V to +15 V MR8790: −10 V to +10 V

If the sum of the amplitude and offset is set to out of the accuracy guarantee range, the output waveform will partly be clamped on the following limits:

U8793: Upper limit of about +16 V, lower limit of about −11 V MR8790: Upper limit of about +14 V, lower limit of about −14 V

Waveform Settings (U8793 and MR8790)

Setting the Duty Cycle (Pulse Wave Output Only)

HIOKI U8793A981-05

4.5 Setting the Duty Cycle (Pulse Wave Output Only)

For MR8847A, MR8827, MR8740, and MR8741

Select the [Duty] setting.

Press a function key (F1 to F5) or select a button with the mouse.

Sweep p. 63

Up-Down p. 20

Tenkey entry p. 21

Valid duty cycle setting range: 0.1% to 99.9% (in 0.1% increments) A pulse width of less than 500 ns in length, resulting from some combinations of the frequency

and duty cycle settings, can cause the output pulse to deform or disappear.

Setting the Duty Cycle (Pulse Wave Output Only)

HIOKI U8793A981-05

For MR6000 and MR8740T

Tap the [Duty] setting.

Enter the duty cycle using the Up Arrow and Down Arrow keys or the numeric keypad.

Valid duty cycle setting range: 0.1% to 99.9% (in 0.1 percent points increments) A pulse width of less than 500 ns in length, resulting from some combinations of the frequency

and duty cycle settings, can cause the output pulse to deform or disappear.

Waveform Settings (U8793 and MR8790)

Setting the Phase

HIOKI U8793A981-05

4.6 Setting the Phase

For MR8847A, MR8827, MR8740, and MR8741

Select the [Phase] setting.

Press a function key (F1 to F5) or select a button with the mouse.

Up-Down p. 20

Tenkey entry p. 21

Valid phase setting range: −360° to +360° (in 0.1° increments)

• The U8793, which can output signals in sync with each other in a single module or with other modules, can output a signal with a phase difference set for each channels.

Example

Ch. 1: 0° phase

Module 1

Ch. 2: 90° phase

Ch. 1: 180° phase

Module 2

Ch. 2: 270° phase

Start of output

• Phase synchronization cannot be performed while using the sweep setting (p. 63) or program

setting (p. 105).

• The MR8790 cannot generate output that is synchronized between channels on the same

module, between channels on different modules, or with output from a U8793 or MR8791

module.

• The MR8791 cannot generate output that is synchronized with output from a U8793 or MR8790 module.

For MR6000 and MR8740T

HIOKI U8793A981-05

Setting the Phase

Tap the [Phase] setting.

Enter the phase using the Up Arrow and Down Arrow keys or the numeric keypad.

Valid phase setting range: −360° to +360° (in 0.1° increments)

• The U8793, which can output signals in sync with each other in a single module or with other modules, can output a signal with a phase difference set for each channels.

Example

Ch. 1: 0° phase

Module 1

Ch. 2: 90° phase

Ch. 1: 180° phase

Module 2

Ch. 2: 270° phase

Waveform Settings (U8793 and MR8790)

Start of output

• Phase synchronization cannot be performed while using the sweep setting (p. 63) or program

setting (p. 105).

• To sync phases between channels, set [All synchronization] to [On].

Setting the Output to On or Off (MR8847A, MR8827, MR8740, and MR8741)

HIOKI U8793A981-05

4.7 Setting the Output to On or Off (MR8847A, MR8827, MR8740, and MR8741)

Select the [Output] setting.

Press a function key (F1 to F5) or select a button with the mouse.

Off Does not output a waveform, regardless of the state of Generator Control

(p. 131). (Output indicator: Off)

On Outputs a waveform when Generator Control (p. 131) is [RUN].

(Output indicator: Red)

Test Generates test output of the set waveform. (Output indicator: Red)

After selecting [Test]

HIOKI U8793A981-05

Setting the Output to On or Off (MR8847A, MR8827, MR8740, and MR8741)

Cancel test

Pressing

This test mode does not provide functionality for judging test results with the module. You are responsible for determining whether the set waveform is being properly output during the output test.

(TRIG.

SET

) stops test output.

Waveform Settings (U8793 and MR8790)

Setting the Sync Use to On or Off (MR6000 and MR8740T)

HIOKI U8793A981-05

4.8 Setting the Sync Use to On or Off (MR6000 and MR8740T)

You can congure this setting if the [All synchronization] setting is set to [On] by following the instructions in “9.1 Setting the Control Method” (p. 127)

Tap the [Use] button to set it [On] or [Off].

Off Does not output a waveform regardless of the signal generation outputting

setting (p. 133). (Output indicator: Off)

On Outputs a waveform when the signal generation outputting (p. 133) is set to

[On].

(Output indicator: Red)

Setting Behavior When Output is Off

HIOKI U8793A981-05

4.9 Setting Behavior When Output is Off

For MR8847A, MR8827, MR8740, and MR8741

Select the [When Off] setting.

Press a function key (F1 to F5) or select a button with the mouse.

When the output (p. 36) is off, places the output terminal in a shorted state by separating it from the module’s internal circuitry and introducing

resistance.

Short

Internal circuitry

When the output (p. 36) is off, places the output terminal in an open state by separating it from the module’s internal circuitry.

U8793: approx. 100 Ω MR8790: approx. 20

Waveform Settings (U8793 and MR8790)

Output terminal

Open

Internal circuitry

Output terminal

Setting Behavior When Output is Off

HIOKI U8793A981-05

For MR6000 and MR8740T

Tap the [When OFF] button to set it [Short] or [Open].

Disconnects the output terminal from the internal circuit and shorts the

terminal using a resistance when the signal outputting (p. 133) is set to off.

Short

Internal circuit

Disconnects the output terminal from the internal circuit and opens the

terminal when the signal output setting (p. 133) is set to off.

Open

Internal circuit

U8793: approx. 100 Ω MR8790: approx. 20

Output terminal

Setting Pulse and Pattern

HIOKI U8793A981-05

Output (MR8791)

This section describes the settings that are available when an MR8791 Pulse Generator Unit is

selected on the Generator screen (signal generation settings screen) (p. 15).

5.1 Setting the Mode

For MR8847A, MR8827, MR8740, and MR8741

Select the [Mode] setting.

Press a function key (F1 to F5) or select a button with the mouse.

Pulse Outputs continuous pulse waveforms. (p. 43)

The frequency and duty cycle can be set separately for each channel.

Pattern Outputs user-edited patterns. (p. 51)

Patterns are edited using the SF8000 Waveform Maker. For information

about how to edit, see “13.10 Pulse Pattern Mode” (p. 179).

The Pattern setting can only be selected when the Channels to use setting on the Memory HiCorder in which the MR8791 is installed is set to the maximum number of channels. The Channels to use setting can be congured under [Basic Setting] on the [STATUS] screen. For more information, see the instruction manual for the Memory HiCorder in which the module is installed.

Setting Pulse and Pattern Output (MR8791)

Setting the Mode

HIOKI U8793A981-05

For MR6000 and MR8740T

Click a button under [Mode] to choose an output mode of the MR8791 Pulse Generator

Unit.

Pulse Outputs continuous pulse waveforms. (p. 44)

The frequency and duty cycle can be set separately for each channel.

Pattern Outputs a user-edited pattern. (p. 52)

Patterns are edited using the SF8000 Waveform Maker. For information

about how to edit, see “13.10 Pulse Pattern Mode” (p. 179).

5.2 Setting the Pulse Mode

HIOKI U8793A981-05

Setting the frequency

For MR8847A, MR8827, MR8740, and MR8741

Setting the Pulse Mode

Select the [Frequency] setting.

Press a function key (F1 to F5) or select a button with the mouse.

Up-Down p. 20

Tenkey entry p. 21

Period Allows you to enter the setting as a period instead of a frequency. This value

can be set only by means of numeric keypad input. (p. 21)

Valid frequency setting range: 0 Hz to 20 kHz (in 0.1 Hz increments)

Valid period setting range: 0 sec. to 10 sec. The period can be set as desired within the above range. However, the period of the waveform that is actually output will be the period of the waveform corresponding to the valid frequency setting that would produce the period closest to the user-entered period value.

Setting Pulse and Pattern Output (MR8791)

Setting the Pulse Mode

HIOKI U8793A981-05

For MR6000 and MR8740T

Click [Frequency] or [Period] to choose.

Display items will vary between [Frequency] and [Period].

Click a box in the [Frequency] column ( or the [Period] column when you chose

[Period]).

Set the frequency (or period) using the up and down arrow keys or numerical keypad.

Valid frequency setting range: 0 Hz to 20 kHz (in 0.1 Hz increments)

Valid period setting range: 0 s to 10 s You can enter any period within the range mentioned above. However, the actual output waveform will have a period rounded off to the nearest valid value in frequency.

Setting the duty cycle

HIOKI U8793A981-05

For MR8847A, MR8827, MR8740, and MR8741

Setting the Pulse Mode

Select the [Duty] setting.

Press a function key (F1 to F5) or select a button with the mouse.

Up-Down p. 20

Tenkey entry p. 21

Valid duty cycle setting range: 0% to 100% (in 0.1% increments)

• Entering a setting of 0% will x the output level to low, while entering a setting of 100% will x the output level to high. The module will not generate pulse output in either case.

• When the duty cycle is set to 100%, the output waveform will be xed at the high level, even

when output is set to off (p. 49).

• A pulse width of less than 500 ns in length, resulting from some combinations of the frequency and duty cycle settings, can cause the output pulse to deform or disappear.

Setting Pulse and Pattern Output (MR8791)

Setting the Pulse Mode

HIOKI U8793A981-05

For MR6000 and MR8740T

Click a box in the [Duty] column.

Set the duty cycle using the up and down arrow keys or numerical keypad.

Valid duty cycle setting range: 0% to 100% (in 0.1 percent point increments)

• Entering a setting of 0% will x the output level to low, while entering a setting of 100% will x the output level to high. The module will not generate pulse output in either case.

• When the duty cycle is set to 100%, the output waveform will be xed at the high level, even when the output is set to [Off]. (p. 133)

• A pulse width of less than 1 µs in length, resulting from some duty cycle settings, can cause the output pulse to disappear.

Setting the output conguration

HIOKI U8793A981-05

For MR8847A, MR8827, MR8740, and MR8741

Setting the Pulse Mode

Select the [Out-Cong] setting.

Press a function key (F1 to F5) or select a button with the mouse.

TTL Selects a TTL-level pulse waveform (0 to 5 V of amplitude).

OC Selects a pulse waveform consisting of open-collector output.

• All channels share the same ground and are not isolated from one another.

Open-collector output

• The voltage applied between the collector and emitter must be 50 V or less.

• The maximum response time (10% to 90%) is approximately 5 µs (with a load capacitance of 1000 pF and a pull-up resistance of 1 k

) (reference value).

Setting Pulse and Pattern Output (MR8791)

Setting the Pulse Mode

HIOKI U8793A981-05

For MR6000 and MR8740T

Click a box in the [Out-Cong] column.

Choose between [TTL] and [OC].

TTL Outputs a TTL pulse waveform (altitude: 0 to 5 V).

OC Outputs an open-collector pulse waveform.

• All channels share the same ground and are not isolated from one another.

Open-collector output

• The voltage applied between the collector and emitter must be 50 V or less.

• The maximum response time (10% to 90%) is approximately 5 µs (with a load capacitance of 1000 pF and a pull-up resistance of 1 kΩ) (reference value).

Setting output (MR8847A, MR8827, MR8740, and MR8741)

HIOKI U8793A981-05

Setting the Pulse Mode

Select the [Output] setting.

Press a function key (F1 to F5) or select a button with the mouse.

Off Does not output a waveform, regardless of the state of Generator Control

(p. 131).

On Outputs the set pulse waveform when Generator Control (p. 131) is [RUN].

Test Generates test output of the set waveform.

A high-level signal may be output momentarily when the power is turned on or off.

Setting Pulse and Pattern Output (MR8791)

Setting the Pulse Mode

HIOKI U8793A981-05

After selecting [Test]

Cancel test

Pressing

This test mode does not provide functionality for judging test results with the module. You are responsible for determining whether the set pulse waveform is being properly output during the output test.

(TRIG.

SET

) stops test output.

Setting the Use to On or Off (for MR6000 and MR8740T)

Click the [Use] button to set it to [On] or [Off].

On Outputs waveforms when the [Output] button under [Signal generation]

(p. 133) is set to [On].

Off Does not output a waveform regardless of the state of the [Output] button

under [Signal generation] (p. 133).

5.3 Setting the Pattern Mode

HIOKI U8793A981-05

Setting the output conguration

For MR8847A, MR8827, MR8740, and MR8741

Setting the Pattern Mode

Select the [Out-Cong] setting.

Press a function key (F1 to F5) or select a button with the mouse.

TTL Selects a TTL-level pulse waveform (0 to 5 V of amplitude).

OC Selects a pulse waveform consisting of open-collector output.

• All channels share the same ground and are not isolated from one another.

Open-collector output

• The voltage applied between the collector and emitter must be 50 V or less.

• The maximum response time (10% to 90%) is approximately 5 µs (with a load capacitance of 1000 pF and a pull-up resistance of 1 k

) (reference value).

Setting Pulse and Pattern Output (MR8791)

Setting the Pattern Mode

HIOKI U8793A981-05

For MR6000 and MR8740T

Click a box in the [Out-Cong] column.

Choose between [TTL] and [OC].

TTL Outputs a TTL pulse waveform (altitude: 0 to 5 V).

OC Outputs an open-collector pulse waveform.

• All channels share the same ground and are not isolated from one another.

Open-collector output

• The voltage applied between the collector and emitter must be 50 V or less.

• The maximum response time (10% to 90%) is approximately 5 µs (with a load capacitance of 1000 pF and a pull-up resistance of 1 kΩ) (reference value).

Setting the pattern to use

HIOKI U8793A981-05

For MR8847A, MR8827, MR8740, and MR8741

Setting the Pattern Mode

Select the [Pattern] setting.

Press a function key (F1 to F5) or select a button with the mouse.

From le

• When output is in the stopped state, the rst registered pattern will be output.

• Registered patterns will be erased if the [Channels to use] setting on the Memory HiCorder in which the MR8791 is installed is changed to any value other than the maximum number of channels.

• Pattern data will be erased if the instrument is turned off. Register pattern data again after turning the instrument on again.

The Channels to use setting can be congured under [Basic Setting] on the [STATUS] screen. For more information, see the instruction manual for the Memory HiCorder in which the module is installed.

Select this function key when registering the pattern. (p. 55)

Selects the pattern number to use.

Setting Pulse and Pattern Output (MR8791)

Setting the Pattern Mode

HIOKI U8793A981-05

For MR6000 and MR8740T

Click a box in the [Pattern] column.

• When the output is in the stopped state, the rst registered pattern will be output.

• Pattern data will be erased if the instrument is turned off. Register pattern data again after turning the instrument on again

Method for registering a pattern

HIOKI U8793A981-05

For MR8847A, MR8827, MR8740, and MR8741

Setting the Pattern Mode

Press the function key (F1) or select [from File] with the mouse to display the File

screen in accordance with the guidance on the screen.

Select the le to register (with an extension of “.pls”).

Setting Pulse and Pattern Output (MR8791)

Setting the Pattern Mode

HIOKI U8793A981-05

Press the function key (F2) or select [Load] with the mouse.

The register settings screen will be displayed.

Set the target unit number and pattern number.

Press (CH.

The le will be registered.

• Insert the media before performing any operations on the File screen.

• Up to 16 pattern les can be registered.

• To cancel the le register operation, press

• The extension for pattern les is “.pls.”

SET

)

(TRIG.

SET

) or (ESC).

For MR6000 and MR8740T

HIOKI U8793A981-05

Setting the Pattern Mode

Click the [Entry] box.

The open window is displayed.

Choose a le you wish to entry.

The [Entry from File] dialog box will be displayed.

Setting Pulse and Pattern Output (MR8791)

Setting the Pattern Mode

HIOKI U8793A981-05

Click the [Pattern No.] box to choose a pattern.

Entry the pattern.

Clicking [OK] will register the pattern of your choice. If you do not wish to register, click [Cancel].

• Insert a storage device before using the open window.

• You can register up to 16 pattern data sets.

• Pattern data will be stored in .pls les.

Setting the clock frequency

HIOKI U8793A981-05

For MR8847A, MR8827, MR8740, and MR8741

Setting the Pattern Mode

Select the [Clock Freq] setting.

Press a function key (F1 to F5) or select a button with the mouse.

Up-Down p. 20

Tenkey entry p. 21

Period Allows you to enter the setting as a period instead of a frequency. This value

can be set only by means of numeric keypad input. (p. 21)

Valid clock frequency setting range: 0 Hz to 120 kHz (in 10 Hz increments)

Valid clock period setting range: 0 sec. to 0.1 sec.

The clock period can be set as desired within the above range. However, the clock period of the waveform that is actually output will be the clock period of the waveform corresponding to the valid clock frequency setting that would produce the clock period closest to the user-entered clock period value.

Setting Pulse and Pattern Output (MR8791)

Setting the Pattern Mode

HIOKI U8793A981-05

For MR6000 and MR8740T

Click [Frequency] or [Period] to choose.

You can enter the frequency or period of the output waveform. Display items will vary between [Frequency] and [Period].

Click the [Clock freq] box.

Set the clock frequency using the up and down arrow keys or numerical keypad.

Valid clock frequency setting range: 0 Hz to 120 kHz (in 10 Hz increments)

Valid clock period setting range: 0 s to 0.1 s You can enter any clock period within the range mentioned above. However, the actual output waveform will have a clock period rounded off to the nearest valid value in clock frequency.

Setting the Pattern Mode

HIOKI U8793A981-05

Setting output (MR8847A, MR8827, MR8740, and MR8741)

Select the [Output] setting.

Press a function key (F1 to F5) or select a button with the mouse.

Off Does not output a waveform, regardless of the state of Generator Control

(p. 131).

On Outputs the set pulse waveform when Generator Control (p. 131) is [RUN].

Test Generates test output of the set waveform.

After selecting [Test]

Setting Pulse and Pattern Output (MR8791)

Pressing (TRIG.

This test mode does not provide functionality for judging test results with the module. You are responsible for determining whether the selected pattern waveform is being properly output during the output test.

SET

) stops test output.

Setting the Pattern Mode

HIOKI U8793A981-05

Setting the Use to On or Off (for MR6000 and MR8740T)

Click the [Use] button to set it to [On] or [Off].

On Outputs waveforms when the [Output] button under [Signal generation]

(p. 133) is set to [On].

Off Does not output a waveform regardless of the state of the [Output] button

under [Signal generation] (p. 133).

HIOKI U8793A981-05

Sweep Setting (U8793)

6.1 Selecting the Sweep Type

For MR8847A, MR8827, MR8740, and MR8741

Select the type of sweep operation you wish to perform.

Type Selectable settings

DC n/a

Sine Square Triangle Ramp-up Ramp-down

Pulse Frequency, amplitude, offset, duty cycle

Arbitrary Clock frequency, amplitude adjustment, offset

Press the function key (F1) or select [Sweep] with the mouse.

When [Sweep] is selected, you will be able to enter the end value (p. 67) underneath the selected setting.

Canceling the sweep setting

The sweep setting can be canceled by pressing the function key (F1) again or by selecting

[Sweep] with the mouse.

Frequency, amplitude, offset (Simultaneous sweep is supported.)

(Simultaneous sweep is supported. However, frequency and duty cycle cannot be set at the same time.)

(Simultaneous sweep is supported.)

Sweep Setting (U8793)

Selecting the Sweep Type

HIOKI U8793A981-05

For MR6000 and MR8740T

Tap the [Sweep] button you wish to apply the sweep to set it to [On].

Every time you tap the button, it toggles between [Off] and [On].

Type Parameters to which the sweep can be applied

DC –

Sine Square Triangle RampUp RampDown

Pulse

Arbitrary Clock frequency, amplitude adjustment, offset

Setting [Sweep] to [On] lets you to set the start value, end value, and sweeping time.

Frequency, amplitude, offset (Instantaneous sweep can be performed.)

Frequency, amplitude, offset, duty cycle (Instantaneous sweep can be performed. However, either the frequency sweep or the duty cycle sweep, but not both, can be set.

(Instantaneous sweep can be performed.)

Start value Sweeping timeEnd value

6.2 Setting the Start Value

HIOKI U8793A981-05

For MR8847A, MR8827, MR8740, and MR8741

Setting the Start Value

Select the start value setting.

Press a function key (F1 to F5) or select a button with the mouse.

Up-Down p. 20

Tenkey entry p. 21

Period Allows you to enter the setting as a period instead of a frequency. This value

can be set only by means of numeric keypad input. (p. 21)

When the frequency is set to the sweep setting, you can set the period with the function key (F5). When you do so, the end value will also switch to the period setting. Values can only be set with numeric key input.

Valid frequency setting range: 0 Hz to 100 kHz (in 0.01 Hz increments) Valid period setting range: 0 sec. to 100 sec.

For duty-cycle sweeping, an error may become larger between a duty-cycle-starting value of a pulse waveform outputted and the set value. The smaller the difference is between the period of the set pulse waveform and the sweeping time, the larger the error becomes.

Sweep Setting (U8793)

Setting the Start Value

HIOKI U8793A981-05

For MR6000 and MR8740T

Tap the box of which you wish to set the start value.

Enter the start value using the Up Arrow and Down Arrow keys or the numeric keypad.

6.3 Setting the End Value

HIOKI U8793A981-05

For MR8847A, MR8827, MR8740, and MR8741

Setting the End Value

Select the end value setting.

Press a function key (F1 to F5) or select a button with the mouse.

Up-Down p. 20

Tenkey entry p. 21

Period Allows you to enter the setting as a period instead of a frequency. This value

can be set only by means of numeric keypad input. (p. 21)

Valid frequency setting range: 0 Hz to 100 kHz (in 0.01 Hz increments) Valid period setting range: 0 sec. to 100 sec.

For duty-cycle sweeping, an error may become larger between a duty-cycle-ending value of a pulse waveform outputted and the set value. The smaller the difference is between the period of the set pulse waveform and the sweeping time, the larger the error becomes.

Sweep Setting (U8793)

Setting the End Value

HIOKI U8793A981-05

For MR6000 and MR8740T

Tap the box of which you wish to set the end value.

Enter the end value using the Up Arrow and Down Arrow keys or the numeric keypad.

6.4 Setting the Sweep Time

HIOKI U8793A981-05

For MR8847A, MR8827, MR8740, and MR8741

Setting the Sweep Time

Select the [Time] setting.

Press a function key (F1 to F5) or select a button with the mouse.

Up-Down p. 20

Tenkey entry p. 21

Valid sweep time setting range: 0.01 ms to 1000 sec. (in 0.01 ms increments)

Sweep Setting (U8793)

Setting the Sweep Time

HIOKI U8793A981-05

For MR6000 and MR8740T

Tap the [Sweep time] box.

Enter the sweeping time using the Up Arrow and Down Arrow keys or the numeric

keypad.

Arbitrary Waveform Settings

HIOKI U8793A981-05

(U8793)

This chapter describes what you need to set when the waveform type is set to [Arbitrary].

7.1 Setting the Waveform Type

For MR8847A, MR8827, MR8740, and MR8741

Select the [Type] setting.

Press a function key (F1 to F5) or select the [Arbitrary] button (page 2/3) with the

mouse.

Arbitrary Waveform Settings (U8793)

Setting the Waveform Type

HIOKI U8793A981-05

For MR6000 and MR8740T

Tap [Arbitrary] under the waveform types.

Registering a Waveform

HIOKI U8793A981-05

7.2 Registering a Waveform

This section describes how to register the desired waveform data in the U8793’s memory. You can register either data created using the SF8000 Waveform Maker or data measured with a Memory HiCorder. For more information about how to create waveforms with the SF8000 Waveform Maker,

see “13 Waveform Maker” (p. 147).

For MR8847A, MR8827, MR8740, and MR8741

Information about registered data

Select the setting under [Type].

Press a function key (F1 to F5) or select a button with the mouse.

Delete Deletes data that has been registered in the U8793’s memory. If the

Registers data saved on external media. (p. 81)

Registers data measured using the memory function. The data can be

registered once the MEM le is loaded into the Memory HiCorder from external media. (p. 76)

maximum eight waveforms have already been registered, you must delete one of the previously registered waveforms before you can register a new waveform.

Arbitrary Waveform Settings (U8793)

• Data for up to eight arbitrary waveforms can be registered for each channel.

• If deleted arbitrary waveform data is used in program function (p. 105) steps, those steps will also be deleted.

Registering a Waveform

HIOKI U8793A981-05

For MR6000 and MR8740T

Select or conrm arbitrary waveform data sets.

The arbitrary waveform selection button has the chosen waveform thumbnail. On its right are the number of samples ([Samples]) and the frequency ([Frequency]). Tapping the arbitrary waveform selection button will show the list of the registered arbitrary waveforms.

You can register up to eight waveforms per channel. Follow the instruction described below to change the arbitrary waveform data set to be output. (1) Tap the waveform thumbnail.

The list of the registered arbitrary waveform data sets will be displayed.

(2) Tap the waveform thumbnail you wish to output.

Registering a Waveform

HIOKI U8793A981-05

If eight waveform data sets have already been registered, you cannot register another data set. Delete waveforms with any numbers before registration. The destination number is automatically chosen from among vacant numbers.

Allows you to register a measured data set (Envelope waveforms cannot

Wave

File Registers the saved data.

Entry Registers the data set following the method you chose.

Remove Removes the data set registered in the U8793 memory.

be registered). You can also load a MEM le from a storage device onto the

instrument before registration.

If the data set with the same name exists in the registration destination, the instrument will save the new data set by overwriting the existing one.

It will take about 40 s to register a data set that consists of 250,000 samples.

When the U8793 already contains eight registered waveforms, delete any one of them before registering a waveform.

Arbitrary Waveform Settings (U8793)

Registering a Waveform

HIOKI U8793A981-05

Registering data measured with a Memory HiCorder

For MR8847A, MR8827, MR8740, and MR8741

Set information about the measurement data to be registered.

Channel Sets the measurement channel number for the measurement data being

registered (Analog waveform: Ch, Waveform calculation: Z). This parameter can be set by function key (F3, F4).

Start Position Sets the start position for the range of measurement data to be registered.

This parameter can be set by function key (F1: entire waveform; F2: waveform between A and B; F3: up-down; F4: numeric keypad input). Selecting [F1: Entire waveform] will cause the start position to be set to 0, while selecting [F2: Waveform between A and B] will cause the start position to be set to the position of the A cursor.

Data Count Sets the number of samples in the measurement data to be registered. This

parameter can be set by function key (F1: entire waveform; F2: waveform between A and B; F3: up-down; F4: numeric keypad input). Selecting [F1: Entire waveform] will cause the data count to be set to the total number of measured samples, while selecting [F2: Waveform between A and B] will cause the data count to be set to the number of samples between the A and B cursors (or if only the A cursor is displayed, the number of samples occurring after the A cursor).

Conv. Ratio Sets the scaling factor to apply to the voltage values in the measurement

data to be registered when registering the data. The valid setting range for this parameter is 0.001× to 100.000×. The parameter can be set by function key (F3: up-down; F4: numeric keypad input).

Name Sets the name of the data. Up to 16 single-byte characters or 8 double-byte

characters can be entered.

Press (CH.

The data will be registered in the module’s memory. To cancel the operation without registering any data, press

SET

)

(TRIG.SET) or (ESC).

Registering a Waveform

HIOKI U8793A981-05

After registering data

Name of the registered arbitrary waveform

Image of the registered waveform

To change the arbitrary waveform data that is output, select the desired waveform from the list of

registered arbitrary waveform data. To do so, move the cursor to the data name eld and press a

function key (F3, F4).

List of registered arbitrary waveform data

It takes approximately 30 seconds to register arbitrary waveform data with 250,000 samples.

About the data count

Measurement data containing up to 250,000 samples can be registered. If you attempt to register measurement data containing more than this maximum number of samples, only 250,000

samples will be registered.

About the conversion ratio

The range of voltages that can be output by the U8793 is −10 V to 15 V. If the measurement data

being registered contains voltage values that exceed this range, a conversion ratio can be set so

that the registered waveform remains within the −10 V to 15 V range.

Example:

You wish to register measurement data describing an anomalous waveform for a 100 V AC power supply and then output it via an amplier connected to the U8793’s output.

Memory HiCorder + U8793

Amplier

Loaded data

200 V

−141 V

Measured data is registered into the U8793’s memory after

being multiplied by a conversion rate of 0.05.

Output Output

10 V

−7.05 V

Amplication rate:

Set to 20×

−141 V

200

Arbitrary Waveform Settings (U8793)

(Use an amplier with an input resistance of at least 2 kΩ for external signal input.)

Registering a Waveform

HIOKI U8793A981-05

For MR6000 and MR8740T

Tap [Wave].

Tap [Entry].

The [Entry from Measured] dialog box will be displayed.

Registering a Waveform

HIOKI U8793A981-05

Set the items of the measured data set to be registered.

Tap each item to set.

Target channel Allows you to enter the channel number of the data set you wish to register.

Range Allows you to choose a registration range from Whole, Segment 1, and

Segment 2.

If you choose Segment 1 or Segment 2, samples dened by the section

cursors will be registered.

Data name Allows you to enter a data name. A data name can be up to eight characters

long. If you leave the box blank, the data set will be named NONAME. If you enter the name same as that of the already registered arbitrary waveform data set, the instrument will save the new data set by overwriting the existing one.

First data Displays the rst location in the data range.

Number Displays the number of the samples to be registered.

Ratio Allows you to enter a ratio by which you wish to multiply the voltage in the

data set to be registered.

Valid setting range: 0.001× to 100.000×

Tapping [OK] can register the waveform in a vacant block. If eight waveforms have been already registered, you cannot register another. Delete any one of them before registering a waveform. If you do not wish to register it, tap [Cancel]

Arbitrary Waveform Settings (U8793)

Registering a Waveform

HIOKI U8793A981-05

It will take about 40 s to register an arbitrary waveform data set that consists of 250,000 samples.

Number of samples

You can register up to 250,000 samples. If you attempt to register samples more than 250,000, the instrument will limit the number of samples to 250,000.

Conversion ratio

The U8793 can output voltage in the range of −10 V to 15 V. If you attempt to register a data set

with voltage that goes out of the range, the instrument will multiply the voltage by conversion ratio so that the voltage can fall into the range. Example

When measured data that contains an abnormal waveform of 100 V AC power is registered to output it through the amplier connected with the U8793’s output.

Memory HiCorder equipped with U8793

Amplier

Read

200 V

−141 V

a conversion ratio of 0.5

(Use the amplier with an input resistance of 2 k

Output Output

10 V

−7.05 V

or more of an external signal input)

Amplication

factor: 20×

200 V

−141 V

Registering a Waveform

HIOKI U8793A981-05

Registering data created with the SF8000 Waveform Maker

For MR8847A, MR8827, MR8740, and MR8741

Verify that the conrmation window is being displayed.

Press (CH.

The le screen will be displayed.

SET

Arbitrary Waveform Settings (U8793)

Select the data you wish to register.

Registering a Waveform

HIOKI U8793A981-05

Press the function key (F2) or select [Load] with the mouse.

The register settings screen will be displayed.

Select the target unit number and channel number and enter the data name.

Press (CH.

The data will be registered.

• Insert the media before performing any operations on the File screen.

• It will take about 30 s to register a data set that consists of 250,000 samples.

• To cancel the data register operation, press

• Only data with the extension “.wfg” or “.tfg” can be registered into the U8793’s memory. Files

with the extension “.wfg” contain binary data, while les with the extension “.tfg” contain text

data. Files with the extension “.fgw” can only be registered using the SF8000 Waveform Maker.

SET

(TRIG.

SET

) or (ESC).

For MR6000 and MR8740T

HIOKI U8793A981-05

Registering a Waveform

2 1

Tap [FILE].

Tap [Entry].

The le screen will be displayed.

Arbitrary Waveform Settings (U8793)

Registering a Waveform

HIOKI U8793A981-05

Choose a le you wish to register using the le screen.

After choosing a le, the [Entry from File] dialog box will be displayed.

Enter a data name in the [Data name] box.

A data name can be up to eight characters long. If you leave the box blank, the data set will be named NONAME. If you enter the name same as that of the already registered arbitrary waveform data, the instrument will save the new data set by overwriting the existing one.

• It will take about 40 s to register a data set that consists of 250,000 samples.

• You can register data sets with only the extension .WFG or .tfg on the U8793’s memory. (Data with the extension .WFG is binary, while that with .tfg is of text.) Only SF8000 Waveform Maker can read data with the extension .fgw.

Setting the Clock Frequency

HIOKI U8793A981-05

7.3 Setting the Clock Frequency

This section describes how to set the conversion clock frequency for the D/A converter when converting arbitrary waveform data to an analog signal with a D/A converter. The sweep setting

may also be used. (p. 63)

The frequency of the arbitrary waveform that is output is determined by the clock frequency and arbitrary waveform data count.

For MR8847A, MR8827, MR8740, and MR8741

Select the [Clock Freq.] setting.

Press a function key (F1 to F5) or select a button with the mouse.

Sweep p. 63

Up-Down p. 20

Tenkey entry p. 21

Period Allows you to enter the setting as a period instead of a frequency. This value

can be set only by means of numeric keypad input. (p. 21)

Arbitrary Waveform Settings (U8793)

Setting the Clock Frequency

HIOKI U8793A981-05

• A low clock frequency may result in a stepped output waveform, which can be smoothed by

applying a lter. (p. 96)

Valid clock frequency setting range: 0 Hz to 2 MHz (in 0.01 Hz increments) Valid clock period setting range: 0 sec. to 100 sec.

• The clock period can be set as desired within the above range. However, the clock period of the waveform that is actually output will be the clock period of the waveform corresponding to the valid clock frequency setting that would produce the clock period closest to the userentered clock period value.

• Because the maximum clock frequency that can be set is 2 MHz (clock period: 500 ns),

outputting measurement data that was measured at sampling speed of greater than 500

ns/S will cause the frequency of the output waveform to be less than the frequency of the measurement waveform.

For MR6000 and MR8740T

HIOKI U8793A981-05

Setting the Clock Frequency

Tap [Frequency] or [Period] to choose.

You can enter the frequency or period of the output waveform. The displayed items differ between [Frequency] and [Period].

Tap the [Clock freq] item (the [Clock period] item when you choose period).

Enter the clock frequency using the Up Arrow and Down Arrow keys or the numeric

keypad.

Setting a lower clock frequency will make the output waveform jagged. Filtering such a waveform

can smooth it out. (p. 96)

Valid clock frequency setting range: 0 Hz to 2 MHz (in 0.01 Hz increments) Valid clock period setting range: 0 s to 100 s

You can enter any clock period within the range mentioned above. However, the actual output waveform will have a clock period rounded off to the nearest valid value clock frequency.

The instrument has the highest valid clock frequency of 2 MHz (clock period of 500 ns). Even if it is set to output a waveform sampled at a sampling speed of 500 ns/S or faster, the output

waveform will have a frequency lower than that of the measured waveform.

Arbitrary Waveform Settings (U8793)

Setting Amplitude Adjustment

HIOKI U8793A981-05

7.4 Setting Amplitude Adjustment

This section describes how to set the amplitude of the amplitude can be adjusted prior to output, for example when you wish to vary the amplitude

minutely. A sweep setting may also be used. (p. 63)

For MR8847A, MR8827, MR8740, and MR8741

arbitrary

waveform being output. The

Select the [Amp. Adj.] setting.

Press a function key (F1 to F5) or select a button with the mouse.

Sweep p. 63

Up-Down p. 20

Tenkey entry p. 21

Valid amplitude adjustment setting range: ×0 to ×2 (in 0.001 increments)

• For the U8793, accuracy is guaranteed for output voltages within the range of −10 V to +15 V. If the amplitude of the arbitrary waveform to be output is increased using amplitude adjustment so that the range within which accuracy is guaranteed is exceeded, part of the output waveform will be clamped as follows:

Upper limit of +16 V, lower limit of −11 V

For MR6000 and MR8740T

HIOKI U8793A981-05

Setting Amplitude Adjustment

Tap the [Amp. Adjust.] setting.

Enter the amplitude adjustment using the Up Arrow and Down Arrow keys or the

numeric keypad.

Valid amplitude adjustment setting range: 0× to 2× (in 0.001 increments)

The accuracy of the U8793’s output voltage is guaranteed within the range of −10 V to +15 V. If

the amplitude of an arbitrary waveform to be output during the amplitude adjustment falls outside the accuracy guarantee range even if you set a larger one, the output waveform will be partly

clamped on the upper voltage of about +16 V and the lower voltage of about −11 V.

Arbitrary Waveform Settings (U8793)

Setting the Offset

HIOKI U8793A981-05

7.5 Setting the Offset

This section describes how to set the offset for registered arbitrary waveform data. The offset is added to the arbitrary waveform data before it is output. The sweep setting may also be used.

(p. 63)

For MR8847A, MR8827, MR8740, and MR8741

Select the [Offset] setting.

Press a function key (F1 to F5) or select a button with the mouse.

Sweep p. 63

Up-Down p. 20

Tenkey entry p. 21

Valid offset setting range: −10 V to +15 V (in 1 mV increments)

• For the U8793, accuracy is guaranteed for output voltages within the range of −10 V to +15 V. If the value obtained by adding the arbitrary waveform amplitude and offset exceeds the range within which accuracy is guaranteed, part of the output waveform will be clamped as follows:

Upper limit of +16 V, lower limit of −11 V

HIOKI U8793A981-05

Setting the Offset

For MR6000 and MR8740T

Tap the [Offset] setting.

Enter the offset using the Up Arrow and Down Arrow keys or the numeric keypad.

Valid offset setting range: −10 V to +15 V (in 1mV increments)

The accuracy of the U8793’s output voltage is guaranteed within the range of −10 V to +15 V.

If the sum of the amplitude and offset is set to out of the accuracy guarantee range, the output

waveform will be partly clamped on the upper voltage of about +16 V and the lower voltage of about −11 V.

Arbitrary Waveform Settings (U8793)

Setting the Delay

HIOKI U8793A981-05

7.6 Setting the Delay

This section describes how to set the delay (phase) for the data position. Output will start from the set data position.

For MR8847A, MR8827, MR8740, and MR8741

arbitrary

waveform being output as a

Select the [Delay] setting.

Press a function key (F1 to F5) or select a button with the mouse.

Up-Down p. 20

Tenkey entry p. 21

The delay can be set within the range of −250,000 to 250,000 in increments of 1 sample. Positive

delay values indicate leading phase.

Registered arbitrary waveform data

With a delay value of

500

With a delay value of

−500

2000 samples

Output start

HIOKI U8793A981-05

Setting the Delay

For MR6000 and MR8740T

Tap the [Delay] setting.

Enter the delay using the Up Arrow and Down Arrow keys or the numeric keypad.

You can set the delay within the range of -250,000 to 250,000 in 1 sample increments. A positive

delay value indicates the phase lead.

Registered arbitrary waveform data

For a delay of 500

For a delay of −500

2000 samples

Output starts.

Arbitrary Waveform Settings (U8793)

Setting the Iteration Count for the Loop (When Sweep Is Disabled)

HIOKI U8793A981-05

7.7 Setting the Iteration Count for the Loop (When Sweep Is Disabled)

This section describes how to set the number of times to repeat the arbitrary waveform being output. Once output starts, the waveform will be output the set number of times.

For MR8847A, MR8827, MR8740, and MR8741

Select the [Loop] setting.

Press a function key (F1 to F5) or select a button with the mouse.

∞

Up-Down p. 20

Tenkey entry p. 21

• Valid number of loops setting range: 1 to 50,000

• After the waveform is output the set number of times, a 0 V signal will be output.

• If the clock frequency, amplitude adjustment, or offset is set to sweep, the number of loops

setting cannot be congured.

• If a delay has been set, the repeat output waveform will be generated as follows:

Continues to repeat the arbitrary waveform until output is stopped.

Output settings

Delay: 500 Number of loops: 5

1st 2nd 3rd 4th 5th

2000 samples

Start of output

Hioki MR8790, MR8791, U8793 Instruction Manual

Specifications and Main Features

Frequently Asked Questions

User Manual

Contents

Introduction

Verifying Package Contents

Safety Information

Operating Precautions

Overview

1.1 Features

1.2 Part Names and Functions

1.3 Inspecting the Module before Use

Connecting the Module

2.1 Installing the Module in and Removing the Module from a Memory HiCorder

Installing the module

Removing the module

2.2 Connecting Cables to the Output Terminals

2.3 Output Terminals

2.4 Connecting Wires to the External Control Terminals (U8793)

Signal Generation Settings Screen

Method for copying and pasting channel settings

Waveform Settings (U8793 and MR8790)

Method for setting values

4.1 Setting the Waveform Type

4.2 Setting the Frequency

4.3 Setting the Amplitude

4.4 Setting the Offset

4.5 Setting the Duty Cycle (Pulse Wave Output Only)

4.6 Setting the Phase

4.7 Setting the Output to On or Off (MR8847A, MR8827, MR8740, and MR8741)

4.8 Setting the Sync Use to On or Off (MR6000 and MR8740T)

4.9 Setting Behavior When Output is Off

5.1 Setting the Mode

Setting Pulse and Pattern Output (MR8791)

5.2 Setting the Pulse Mode

Setting the frequency

Setting the duty cycle

Setting output (MR8847A, MR8827, MR8740, and MR8741)

Setting the Use to On or Off (for MR6000 and MR8740T)

5.3 Setting the Pattern Mode

Setting the pattern to use

Method for registering a pattern

Setting the clock frequency

Setting output (MR8847A, MR8827, MR8740, and MR8741)

Setting the Use to On or Off (for MR6000 and MR8740T)

Sweep Setting (U8793)

6.1 Selecting the Sweep Type

6.2 Setting the Start Value

6.3 Setting the End Value

6.4 Setting the Sweep Time

7.1 Setting the Waveform Type

Arbitrary Waveform Settings (U8793)

7.2 Registering a Waveform

Registering data measured with a Memory HiCorder

Registering data created with the SF8000 Waveform Maker

7.3 Setting the Clock Frequency

7.4 Setting Amplitude Adjustment

7.5 Setting the Offset

7.6 Setting the Delay

7.7 Setting the Iteration Count for the Loop (When Sweep Is Disabled)