Hioki 8860-50, 8861-50, 8860-51, 8861-51 Input Module Guide

8860-50 8861-50

Input Module Guide

8860-51 8861-51

MEMORY HiCORDER

This Guide describes the optional input modules, related cable connection procedures, and their settings and specifications.

Dec. 2016 Revised edition 8 8860B985-08 16-12H

* 6 0 0 1 9 3 0 4 8 *

Notes for Installing the Input Units

When installing 4 or more Model 8946 and Model 8958 at the same time

UNIT

45 8

UNIT

45 8 1

UNIT

45 8

Do not install 4 units of Model 8946 to the UNIT 1-4 slots.

UNIT

45 8

4 units of Model 8946 can be installed to the UNIT 1-4 slots.

Other than Model 8958

Only a maximum of 3 units of Model 8946 can be installed in the UNIT 1-4 slots.

When Model 8958 is not installed

8946 8946 8958

8946 89468958 8946 8958

When Model 8958 16ch Scanner Unit and 4 or more units of Model 8946 4ch Analog Unit are installed in Model 8861-50/8861-51 at the same time, only a maximum of 3 units of Model 8946 can be installed to the UNIT 1-4 slots of Model 8861-50/8861-51.

in Model 8861-50/8861-51

 When Model 8961 High Voltage Unit are installed

Only a maximum of FOUR units of Model 8961 High Voltage Unit may be installed in Model 8861-50/8861-51 Memory HiCorder. To avoid the danger of electric shock, install no more than four 8961s.

 When Model 8946 4ch Analog Unit are installed

8860B985-08

Please refer to the following flow chart to when installing input units:

As much as possible, install an equal number of units to the UNIT 1-4 and 5-8 slots.

Yes

Installation completed.

Up to 3 units of Model 8946 can be installed to the UNIT 1-4 slots. As much as possible, install an equal number of units to the UNIT 1-4 and 5-8 slots.

Will model 8958 be installed?

Will 4 or more units Model 8946 be installed?

As much as possible, install an equal number of units to the UNIT 1-4 and 5-8 slots.

UNIT

45 8 1

UNIT

45 8

8958

UNIT

45 8

8958

89468946

Installation example

Yes

Installation exampleInstallation example

Number of input units

UNIT

45 8 1

UNIT

45 8

Recommended positions for installing input units

Balanced installation of input units in the UNIT 1-4 and 5-8 slots is recommended in order to effectively utilize the internal memory of Model 8861-50/8861-51.

Number of input units

Contents

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

Structure of this Document.................................................................3

Chapter 1

Overview___________________________________ 5

1.1 Product Overview ................................................................5

1.2 Input Module Usage List ...................................................10

1.3 List of Input Modules, Cables, Probes and Clamp

Combinations .................................................................... 13

Contents

Chapter 2

Connections _______________________________ 15

2.1 Installing Input Modules (Adding or Replacing) ................16

2.2 Connecting the Cables ......................................................18

2.2.1 Connection Preparations .......................................................18

2.2.2 Connecti ng to an Analog Unit

(Models 8936, 8938, 8946, 8956 and 8957) ..........................19

2.2.3 Connecti ng to the Model 8937 Voltage/Temp Unit ................20

2.2.4 Connecti ng to a Strain Unit (Models 8939 and 8960) ............22

2.2.5 Connecti ng to the Model 8940 F/V Unit ................. .. ..............23

2.2.6 Connecti ng to the Model 8947 Charge Unit .........................26

2.2.7 Connecti ng to the Model 8958 16-Ch Scanner Unit ..............28

2.2.8 Connecti ng to the Model 8959 DC/RMS Unit ........................30

2.2.9 Connecti ng to the Model 8961 High Voltage Unit ..................31

2.3 Connecting Clamps ...........................................................32

2.4 Connecting a Differential Probe ........................................34

2.5 Connecting Attenuating Probes ........................................38

2.6 Connecting Logic Probes ..................................................40

2.7 Supplying power from the Model 9687 Probe Power Unit 44

Chapter 3

Input Channel Settings ______________________ 45

3.1 Analog Unit Settings (Models 8936, 8946 and 8956) .......46

3.2 Model 8937 Voltage and Temperature Unit Settings ........47

3.2.1 Voltage Measurement ...........................................................47

3.2.2 Temperature Measurement ...................................................48

3.3 Model 8938 FFT Analog Unit Settings ..............................50

Contents

3.4 Strain Unit Settings (Models 8939 and 8960) ...................51

3.5 Model 8940 F/V Unit Settings ...........................................52

3.5.1 Measuring Freq uency, 50/60 Hz and Rotation Rate .............52

3.5.2 Pulse Count Measurement ...................................................54

3.5.3 Pulse Duty M e a su r e m e n t ......................... .. .. ............. ... .. ....... 55

3.5.4 Voltage Measurement ................. ..........................................56

3.5.5 Current Measurement ........................................................... 57

3.6 Model 8947 Charge Unit Settings .....................................58

3.6.1 Voltage Measurement ................. ..........................................58

3.6.2 Acceleration Measurement (Charge, Preamp) .....................59

3.7 Model 8957 High Resolution Unit Settings .......................61

3.8 Model 8958 16-Ch Scanner Unit Settings ........................62

3.8.1 Voltage Measurement ................. ..........................................62

3.8.2 Temperatu r e M e a s urement ............ ............. .. .. .............. .. .. ... 63

3.9 Model 8959 DC/RMS Unit Settings ..................................65

3.10 Model 8961 High Voltage Unit Settings ............................66

3.11 About Setting Contents ............................. ............ ............67

3.11.1 Measurement Range Setting ..................... .. ........................67

3.11.2 Setting Input Coupling ...........................................................68

3.11.3 Low-Pass F ilter (LPF) Sett in g s ....... ............. .. ....................... 69

3.11.4 Anti-Aliasing Filter (AAF) Settings ......................................... 70

3.11.5 Digital Filter (Digital F) Settings ............................................ 70

3.11.6 Thermocouple (Sensor) Type Setting ...................................71

3.11.7 Reference Junction Compensation Setting ................... ........71

3.11.8 Drift Corre ct io n Se t ting ......... ........................................ .. .. ..... 72

3.11.9 Disconnect (Burn-Out) Detection Setting ..............................72

3.11.10 Hold Setting .......................................................................... 73

3.11.11 Pu ll-Up Setting .............. .. ... ............. .. .. ............. ... .. ............. .. . 74

3.11.12 Th reshold Sett in g ............... .. .. ............. .. ... ............. .. .. ............ 75

3.11.13 Response (Timing) Setting ..................... .. ........................ .... 75

3.11.14 Se n s o r S e n sitivity Setti n g ...... ............. .. ................................ 76

3.11.15 Probe Attenuation Selection ..................... .. ........................ ..78

3.11.16 Bridge Voltage Setting ................. .........................................78

3.11.17 Ex e c u ting Zero Adjustment ................................. .. ................ 79

3.11.18 Ex e cuting Offse t C a nc e llation ....... .......................... .. ... ......... 79

3.11.19 Ex e cuting Auto- B a la n c e ............. ... .. ............. .. .. .............. .. .. ... 81

Chapter 4

Logic Input Settings_________________________83

4.1 Operation Overview ..........................................................83

4.2 Setting Procedure .............................................................84

Chapter 5

Specifications______________________________ 87

5.1 Logic Input Section ...........................................................87

5.1.1 Model 9327 Logic Probe ...................... ........................ ..........87

5.1.2 Model MR9321-01 Logic Probe ................................... ..........88

5.1.3 Model 9320-01 Logic Probe ..................... .. ........................ ...89

5.2 Analog Input Section .........................................................90

5.2.1 Model 8936 Analog Unit ........................................................90

5.2.2 Model 8937 Volt age/Temp Unit .............................................92

5.2.3 Model 8938 FFT Analog Unit .................................................94

5.2.4 Model 8939 Str a in Unit ..........................................................95

5.2.5 Model 8940 F/V Unit ............................ .................. ................96

5.2.6 Model 8946 4-Ch Analog Unit ............................. .. ................98

5.2.7 Model 8947 Charge Uni t ...................... ........................ ..........99

5.2.8 Model 8956 Analog Unit ......................................................101

5.2.9 Model 8957 High Resoluti on Unit ................................. .. .....102

5.2.10 Model 8958 16-Ch Scanner Unit .........................................103

5.2.11 Model 8959 DC/RMS Unit ................................... ................105

5.2.12 Model 8960 Strain Unit ................................... .. ...................106

5.2.13 Model 8961 High Voltage Unit .................. .. ........................ .107

iii

Contents

Index ________________________________ Index1

Contents

Introduction

The following document s are pr ovided with the Model 8860-50, the 8861- 50 , the 8860-51 or the 8861-51 Memory HiCorders. Refer to them as appropriate for your application.

Document Description

Read this first.

Quick Start Manual

Input Module Guide

(This document)

It describes preparations for use, basic operati ng p rocedures and usage methods.

To connect input modules and measurement cables, and when making input channel settings;

this Guide describes th e optional input modul es, related cable connection procedures, and their settings and specifications.

To obtain setting details;

Instruction Manual

Analysis and Communication

Supplement

Which input module and cables to use with the in st ru men t dep end o n yo ur measurement application. Refer to this as appropriate for your application. (p. 3)

• In this document, th e “instrument” means the Model 8860- 50, the 8861-50, the 8860-51 and the 8861-51 Memory HiCorder.

• “Clamp” refers to one of our optional clamp-on sensor products.

• Unless otherwise no ted in this manual, informa tion provided for the 886 0-50 also applies to the 8860-51, and information provided for the 8861-50 also applies to the 8861-51.

this Manual describes details of the functions and operations of the instrument, and its specifications.

To analyze measurement data using the calculation functions, and to communicate with the instrument;

this supplement describes the procedures for analyzing data using numerical calculations, waveform calculations and FFT fun ctions, and h ow to communi cate with the instrument using a computer.

Introduction

Safety Symbols

In the manual, the symbol indicates particularly important information that the user should read before using the instrument.

The symbol printed on the instrument indicates that the user should refer to a corresponding topic in the manual (marked with the

symbol) before using the relevant function.

Indicates DC (Direct Current).

Indicates AC (Alternating Curre nt).

Indicates both DC (Direct Current) and AC (Alternating Current).

Indicates a grounding terminal.

The following symbols in this manual indicate the relative importance of cautions and warnings.

Indicates that incorrec t operation presents an ex treme ha zard that could result in serious injury or death to the user.

Indicates that incorrect operation presents a significant hazard that could result in serious injury or death to the user.

Indicates that incorrect operation presents a possibility of injury to the user or damage to the instrument.

Indicates advisory items related to performance or correct operation of the instrument.

Other Symbols

Indicates a prohibited action.

(p. )

[ ]

CURSOR

(Bold

characters)

Indicates the location of reference information. Indicates quick refere nces for ope ration and r emedies for troubleshoot -

ing. Indicates that descriptive information is provided below.

Screen labels such as menu items, page titles, setting items, dialog titles and buttons are indicated by square brackets [ ].

Bold characters within the text indicate operating key labels.

Accuracy We define measuremen t tolerances in terms of f.s. (full scal e) values, with the

following meanings: f.s. (maximum display value or scale length) The maximum disp la yable valu e or scale l ength. T his is usu ally the na me of th e currently selected rang e. In this instrumen t, the maxim um di spla yable val ue is th e ran ge (V /div ) times the number of divisions (20) on the vertical axis. Example: For the 1 V/div range, f.s. = 20 V

Structure of this Document

Preparation

Overview of Input

Modules and Logic

Groups

Procedure

Connections

Turn Power On

Instrument Settings

(input channel

settings)

Reference Location

About the overview of in put modules and logic groups

Overview of usage, connections and settings

Input module connection s Specifications of input modules

and logic probes

Connecting the input modules, cables and logic probes to the instrument

Refer to the Quick Start Manual for other connections.

(When using an input module) Set analog channels

(When using a logic probe) Set logic channels

In addition to the above, perform necessary measurement settings such as measurement criteria and trigger settings. Refer to the Quick Start Manual for overviews of all operations. Refer to the Instruction Manual for details of settings other than those related to input channels.

"1.1 Product Overview" (p. 5)

"1.2 Input Module Usage List" (p. 10)

"1.3 List of Inpu t Modu les, Ca bles, Probes and Clamp Combinations" (p. 13)

"Chapter 5 Specifications" (p. 87)

Reference Location

"Chapter 2 Connections" (p. 15)

"Chapter 3 Input Channel Settings" (p. 45)

"Chapter 4 Logic Input Settings" (p. 83)

Measure

This Instrument

Input Module

GND

400 VDC max

370 VAC/DC

Model 8936 Analog Unit Model 8938 FFT Analog Unit Model 8959 DC/RMS Unit

This Instrument

Input Module

GND

400 VDC max

300 VAC/DC

Model 8956 Analog Unit Model 8957 High Resolution

Unit

This Instrument

Input Module

GND

30 Vrms or 60 VDC

Model 8937 Voltage/Temp Unit

Model 8946 4-Ch Analog Unit

This Instrument

Input Module

GND

10 VDC max

30 Vrms or 60 VDC

Model 8939 Strain Unit

This Instrument

Input Module

GND

DC10 V max

33 Vrms or 70 VDC

Model 8960 Strain Unit

This Instrument

Input Module

GND

30 Vrms or 60 VDC

Connectors

BNC

Model 8940 F/V Unit

*1 *2

This Instrument

Input Module

GND

Maximum applied electric charge (p. 99)

30 Vrms or 60 VDC

BNC

Miniature

Connector

Common

Model 8947 Charge Unit

This Instrument

Input Module

GND

40 VDC max

33 Vrms or 70 VDC

−

33 Vrms or 70 VDC

Model 8958 16-Ch Scanner Unit

This Instrument

Input Module

GND

1000 VDC max

Model 8961 High Voltage Unit

1000 VAC/DC (CAT II), 600 VAC/DC (CAT III)

Structure of this Document

Maximum Input Voltage*1 of input module and Maximum Rated Voltage to Ground*

1.1 Product Overview

Overview Chapter 1

1.1 Product Overview

This chapter pr ovides an ove rview of the opti onal input mo dules and in put cables that can be us ed with this instrument. Refer to "Appendix 6 Disposin g of the Instrument" in the Inst ruction Manual for a full list of option s for this instrument.

Voltage Measurement

Input Module

8956 Analog Unit 8957 High Resolution Unit 8936 Analog Unit 8946 4-Ch Analog Unit

2 channels, 20 MS/s, 12-bit, maximum input voltage: 400 VDC

High-speed type

8938 FFT Analog Unit 8959 DC/RMS Unit 8940 F/V Unit 8937 Voltage/Temp Unit

2 channels, 1 MS/s, 12-bit, maximum input voltage: 400 VDC

(Includes internal anti-aliasing filter.)

8958 16-Ch Scanner Unit 8947 Charge Unit

16 channels, 20 S/s, 16-bit, maximum input voltage: 40 VDC

In addition to voltage, also supports temperature measurement.

2 channels, 2 MS/s, 16-bit, maximum input voltage: 400 VDC

Supports high -precision measurements. (Incl udes inte rnal anti-aliasing fi lte r.)

2 channels, 1 MS/s, 12-bit, maximum input voltage: 400 VDC

Measures both normal and RMS voltages.

2 channels, 1 MS/s, 12-bit, maximum input voltage: 30 Vrms/60 VDC

In addition to voltage, also supports measurements with piezoelectric acceleration sensors. (Includes internal anti-aliasing filter.)

2 channels, 1 MS/s, 12-bit, maximum input voltage: 400 VDC

2 channels, 1 MS/s, 12-bit, maximum input voltage: 30 Vrms/60 VDC

In addition to voltage, also measures current, frequency, rotation rate, pulse totalization and duty cycle.

8961 High Voltage Unit

2 channels, 2 MS/s, 16-bit, maximum input voltage: 1000 VDC

Use to measure high voltage power lines.

4 channels, 1 MS/s, 12-bit, maximum input voltage: 30 Vrms/60 VDC

2 channels, 1 MS/s, 12-bit, maximum input voltage: 30 Vrms/60 VDC

Measures temperature in addition to voltage.

Also refer to "Maximum Input Voltage*1 of input module and Maximum Rated Voltage to Ground*2" (p. 4) For the measurement resolution of each input module, see "Appendix 2 Overview of Settings and Functions" - "Measure- ment Range Setting" in the Quick Start Manual.

1.1 Product Overview

Input cables for voltage measurement with input modules (except the Model 8958 16-Ch Scanner Unit and 8961 High Voltage Unit)

L9197 Connection Cord

9197 Connection Cord

For high voltage, maximum input voltage: 500 V (large alligator clips)

9322 Differential Probe 9665 10:1 Probe 9666 100:1 Probe

For high voltage, maximum input voltage: (CAT II): 2000 VDC, 1000 VAC, (CAT III): 600 VAC/DC

Applicable Modules:

• Model 8940 F/V Unit

• Input modules for voltage measurement (except the Model 8958 16-Ch Scanner Unit)

To connect to an input modu le, the following separate items are required:

• Model 9325 Power Cord (when using the Model 8940)

• Model 9418-15 AC Adapter

• Model 9248 Power Cord (when using the Model 9687)

L9198 Connection Cord L9217 Connection Cord

For low voltage, maxi mum input voltage: 300 V (small alligator clips)

Maximum input voltage: 1 kVrms (500 kHz or l ess)

Applicable Modules :

• Model 8936 Analog Unit

• Model 8938 FFT Analog Unit

• Model 8956 Analog Unit

• Model 8957 High Resolution Unit

• Model 8959 DC/RMS Unit

Maximum input voltage: 300 V (for BNC output)

Maximum input voltage: 5 kVpeak (1 MHz or less)

Applicable Modules:

• Model 8936 Analog Unit

• Model 8938 FFT Analog Unit

• Model 8956 Analog Unit

• Model 8957 High Resolution Unit

• Model 8959 DC/RMS Unit

For Model 8961 High Voltage Unit

9242 Connection Cord

For Model 8961, Maximum input voltage: 1000 V, Dolphin Clip

Model 9243 Grabber Clip (supplied)

Refer to "1.3 List of Input Modules, Ca bles, Probes and Clamp Combinati ons" (p. 13) for c ombinations of cables and pro bes to connect to an input module.

Input Module

9018-50

9132-50

3273-50 and 3276

3274 and 3275

9270 and 9271

9272

9277 9278

9279

8940 F/V Unit

1.1 Product Overview

Current Measurement

Input modules for voltage measurement

(except the Model 8958 16-Ch Scanner Unit

and 8961 High Voltage Unit)

Current can be measured using a clamp. 2 channels, 1 MS/s, 12-bit, clamp input In addition to current, also measures voltage,

Refer to "Voltage Measurement" (p. 5) for input modules.

Measures in [Voltage] mode. frequency, rotation rate, pulse totalization and duty cycle.

Clamps compatible with the above input modules.

3273-50 Clamp-On Probe* 9018-50 Clamp-On Probe 9132-50

Clamp-On Probe*

For AC Outputs 0.2 V AC waveform of commercial power line current. 9018-50: 10 to 500 A, 40 Hz to 3 kHz 9132-50: 20 to 1000 A, 40 Hz to 1 kHz

3274 Clamp-On Probe *

3275 Clamp-On Probe *

3276 Clamp-On Probe *

AC/DC Supports high-accuracy observation over broad ranges from DC to MHz. 3273-50: 30 A*

, DC to 50 MHz 3274: 150 A, DC to 10 MHz 3275: 500 A, DC to 2 MHz 3276: 30 A, DC to 100 MHz

1 1 1 1

9270 Clamp-On Sensor * 9271 Clamp-On Sensor * 9272 Clamp-On Sensor *

1, *3 1, *3 1, *3

For AC Supports inverter secondary current measurement. 9270: 20 A, 5 Hz to 50 kHz 9271: 200 A, 5 Hz to 50 kHz 9272: 20/200 A, 5 Hz to 10 kHz

For users of the following legacy products:

• Model 9018 Clamp-On Probe

• Model 9132 Clamp-On Probe Usable with this instrument by connecting the Model 9199 Conversion

9277 Universal Clamp-On CT * 9278 Universal Clamp-On CT *

9279 Universal Clamp-On CT *1,*

Adapter.

AC/DC Low zero drift supports stable long-

term measurements. 9277: 20 A, DC to 100 kHz

For measur ing leakage current:

The Model 9657-10 Clamp-On Leak Sensor can also be used.

9278: 200 A, DC to 100 kHz 9279: 500 A, DC to 20 kHz

*1. Except for Models 9018-50 and 913 2-50 , a s ep arat e c on ve rsi on cable or power su ppl y is re qui red when connecting to

an input module. Refer to "1.3 List of Input Modules, Cables, Probes and Clamp Combinations" (p. 13) for details. *2. Up to 15 A when combined with the Model 8940 F/V Unit. *3. Not applicable to CE Marking

1.1 Product Overview

Temperature Measurement (Thermocouple Inputs)

Input Module

8937 Voltage/Temp Unit 8958 16-Ch Scanner Unit

2 channels, 4 kS/s, 12-bit Thermocouple Types: K, E, J, T, N, R, S, B

In addition to temperature, also supports voltage measurement.

16 channels, 20 S/s, 16-bit Thermocouple Types: K, E, J, T, N, R, S, B, W

In addition to temperature, also supports voltage measurement.

Frequency, Rotation Rate, Commercial Line

Frequency (50/60 Hz), Pulse Count,

Pulse Duty Measurement

Input Module

8940 F/V Unit 8947 Charge Unit

2 channels, 1 MS/s, 12-bit

• Frequency: c an b e me as ured from the inp ut pulse corresponding t o the measurement waveform.

• Rotation Rate: can be measured from the input pulse corresponding to the measurement waveform.

• 50/60 Hz: Frequencies near 50/60 Hz can be measured from the input pulse corresponding to the measurement waveform.

• Totalization: cumulative count of input pulses.

• Pulse Duty: measured as the percentage of High level of a single pulse waveform.

Acceleration Measurement

2 channels, 1 MS/s, 12-bit

• Electric Charge: can be measured using a voltage-output type acceleration pick-up sensor.

• Preamp: ca n be measured usin g a n a cc el eration pick-up sensor with built-in preamp.

Also supports voltage mea sur em ent.

Electric Charge, Pressure, Torque,

Displacement Measurement

Input Module

8939 Strain Unit 8960 Strain Unit

2 channels, 1 MS/s, 12-bit Vibration and displacement can be measured using a strain gauge transducer. (conversion cable supplied)

2 channels, 200 kS/s, 16-bit Vibration and displacement can be measured using a strain gauge transducer. Supports high-precision measurements. (Includes internal antialiasing fil ter.) (conversi on cable supplied)

Logic Signal Measurement

Logic probes that can be connected to this instrument

9320-01 Logic Probe MR9321-01 Logic Probe 9327 Logic Probe

1.1 Product Overview

Measures digital signals and on/off switching of non-voltage contacts.

For users of the following legacy products:

Models 9306, 9307, 9320, 9321 Logic Probes Usable with this instrument by connecting the Model 9323 Conversion Cable.

Detects the presence of AC and DC voltages. Measures activation timing of relay sequencing circuits. Maximum input voltage: 250 Vrms (HIGH range)

Measures faster sig nal s than the Model 9320-01 Logic Probe.

1.2 Input Module Usage List

Voltage Measurement

To Perform Thi s Measurement

To measure 400 volts or

Up to 1000 V

more by direct connection.

Up to 2 channels per module

For faster sampling Model 8956 Analog Unit To see high-precision

voltage values

Up to 400 V

To perform FFT analysis

To also see RMS voltage

For additional channels (four)

Up to 30 Vrms or 60 V DC

To measure with high sensitivity (500 µV/div)

Recommended Input

Module

Model 8961 High Voltage Unit

Model 8936 Analog Unit

Model 8957 High Resolution Unit

Model 8938 FFT Analog Unit

Model 8959 DC/RMS Unit Model 8961 High Voltage Unit

Model 8946 4-Ch Analog Unit

Model 8937 Voltage/ Temp Unit

Model 8940 F/V Unit Model 8947 Charge Unit

Use to connect

Model 9242 Connection Cord

Model L9197 Connection Cord, Model 9197 Connection Cord (Up to 500 V)

Model L9198 Connection Cord (Up to 300 V)

Model L9217 Connection Cord (Up to 300 V)

Model 9242 Connection Cord (for Model 8961 High Voltage Unit)

Connection

Procedure

(p. 31) (p. 66)

(p. 19) (p. 46)

(p. 19) (p. 61)

(p. 19) (p. 50)

(p. 30) (p. 31)

(p. 19) (p. 46)

(p. 20) (p. 47)

(p. 23) (p. 56) (p. 26) (p. 58)

Setting

Procedure

(p. 65) (p. 66)

Up to 40 V

When measured voltage exceeds the maximum input for the Input module

When slow sampling is acceptable, but more channels desired

Up to 2000 V DC or 1000 V AC (depending o n measurement site (p. 34) )

Up to 1000 Vrms (@500 kHz max.)

Up to 5000 Vpeak (@1 MHz max.)

Model 8958 16-Ch Scanner Unit

Above Input Modules

(except the Model 8958 16Ch Scanner Unit and Model 8961 High Voltage Unit)

Model 8936 Analog Unit Model 8956 Analog Unit Model 8957 High Resolution Unit Model 8938 FFT Analog Unit

Input Cable

Model 9322 Differe ntial

Probe *

Model 9665 10:1 Probe

Model

9666 100:1

Probe *

(p. 28) (p. 62)

(p. 34) (p. 78)

(p. 38) (p. 78)

Model 8959 DC/RMS Unit

Overview of the above input modules (p. 5), description of cables (p. 6) Procedures for settings unrelated to input channels are the same. Refer to the Instruction Ma nua l for details.

*1. Voltage to ground complies with Model 9322 specifications. (p. 34) *2. Voltage to ground complies with the specifications of the input module used. (p. 90)

Temperature Measurement

1.2 Input Module Usage List

To Perform This

Measurement

To measure temperature

T o meas ure multi-channe l temperature

Recommended Input

Module

Model 8937 Voltage/ Temp Unit

Model 8958 16 -Ch Scanner Unit

Use to connect

Thermocouple

Connection

Procedure

(p. 20) (p. 47)

(p. 28) (p. 62)

Setting

Procedure

Remarks

Up to 2 channels can be measured per module.

Up to 16 channels can be measured per module.

Overview of the above input modules (p. 8) Procedures for settings unrelated to input channels are the same. Refer to the Instruction Manual for details.

Current Measurement

To Perform This

Measurement

To read current values directly without comp licated settings such as scaling

To measure using a

voltage measurement

module

Recommended

Input Module

Model 8940 F/V Unit

Voltage Measurement Input Module

Use to connect

Model 3273-50 Clamp-On Probe

Models 9270 to 9272 Clamp-On Sensor

Models 9277 to 9279 Universal Clamp-On CT

Models

9018-50/ 913250 Clamp-On Probe

Models 3273-50 to 3276 Clamp-On Probe

Models 9270 to 9272 Clamp-On Sensor

Models 9277 to 9279 Universal Clamp-On CT

Connection

Procedure

(p. 23) (p. 32)

(p. 32)

Setting

Procedure

(p. 52)

Refer to the voltage measurement description for each module

A conversion cable is required for connection (p. 13).

Scaling is required. Depending on the clamp, a power supply or sensor unit may be required for connection (p. 13).

Remarks

Overview of the above input modules (p. 7), about Clam ps (p. 7) Procedures for settings unrelated to input channels are the same. Refer to the Instruction Manual for details.

Other Measurements

To Perform This Measurement Recommended Input Module Use to connect

To measure electric charge, acceleration, pressure, torque or displacement using a strain sensor.

Model 8939 Strain Unit Model 8960 Strain Unit

Conversion Cable (supplied) Strain Gauge

Transducer To measure acceleration Model 8947 Charge Unit Piezoelectric Sensor To measure frequency

To measure pulse counts (totalization), pulse duty and similar values

Model 8940 F/V Unit

Models

L9198 Connection Cord

L9217 Connection Cord

Overview of the above input modules (p. 8) Procedures for settings unrelated to input channels are the same. Refer to the Instruction Manual for details.

Connection

Procedure

(p. 22) (p. 51)

(p. 26) (p. 59)

(p. 23) (p. 52)

Setting

Procedure

1.2 Input Module Usage List

Logic Measurements

To Perform This Measurement Recommended Probe

To measure digital signals and on/off switching of non-voltage contacts

T o mea sure larger si gnals than the above Model 9327 Logic Probe To measure the presence or absence of

AC or DC voltage

Model 9320-01 Logic Probe

Model MR9321-01 Logic Probe

Connection Procedure

(p. 40), (p. 42)

(p. 40), (p. 43)

Setting

Procedure

(p. 83)

1.3 List of Input Modules, Cables, Probes and Clamp Combinations

*1. Although compatible, the L9198 is recommended instead. To connect to the input module, the following separate items

are required: *2. Model 9325 Power Cord , 9418-15 AC Adapter, or 9248

Power Cord (when using the Model 9687)

*3. Model 9418-15 AC Adapter or 9248 Power Cord (when

using the Model 9687) *4. Model 9318 Conversion Cable or 9555-10 Sensor Unit *5. Model 9319 Conversion Cable, 3272 Power Supply, 3269

Power Supply, or 9687 Probe Power Unit *6. Model 9555-10 Sensor Unit*

*7. Model 3272 , 3269 Power Supply, or 9687 Probe Power

Unit

*8. Set the instrument to [Voltage] measurement mode

when using combinations that do not include the Model 8940, and with the c ombinatio n of the 8940 and Model 9018-50 or 9132-50. (p. 56)

*9. Up to six units can be used with the 9325

Up to eight clamps can be used When the 9325 and clamps are used at the same

time, up to eight can be used *10. Not applicable to CE Marking *1 1: Th e Model 9 243 Gra bbe r Clip ca n also be conn ected .

About Scaling settings: Voltage acquired from the sensor is converted to the corresponding physical measurement units for display.

See "5.4 Converting Input Values (Scaling Function)" in

the Instruction Manual

1.3 List of Input Modules, Cables, Probes an d Clamp Combinatio n s

O = Compatible, − = Incompatible, Δ = Compatible, but scaling required

Measurement

Parameter

Voltage

RMS Values Same as above FFT Analysis

(with AAF installed)

Current

Acceleration Piezoelectric Sensor Temperature Thermocouple

Frequency, Pulse Totalization, Pulse Duty

Use to connect

L9197 9197

Connection Cables

Differential Probe

Attenuating Probes

Input Cable

Same as above

Clamp-On Sensors

Universal Clamp-On

CTs *

Clamp-On Probes

Connection Cable (Sensor)

L9198 L9217

9242 9322 9665

9666

9270 * 9271 *

9272 * 9277

9278 9279 *

3273-50 3274

3275

3276 9018-50

9132-50

8936 8937 8938 8939 8940 8946 8947 8956 8957 8958 8959 8960 8961

*1O

OOO OOO

*11

−−−−−−−−−−−−

*3O

−

*3O

−

*2,*

−−−−

−−−−−−−−−

−−−−−−−−−−

−−

10 10

Δ*6Δ*6Δ*

Δ*7Δ*7Δ*

ΔΔΔ ΔΔΔ

−−−

−

*4,*

*5,*

−−−−−−

−

−−−−−−−

−−−−

Input Module

*1O

*1OO

OOOOO OOOOO

*3O

Δ*6Δ*6Δ*6Δ*

Δ*7Δ*7Δ*7Δ*

Δ*

*3O

−

*3O

ΔΔΔΔΔ ΔΔΔΔΔ

−−−−−−

−−−−−−−−

−

−−−

−−

Δ*

−

Δ*

−

Δ*

−

−−−

−−

−

−−

−

−−

*1. Although compatible, the L9198 is recommended instead. To connect to the input module, the following separate items

are required: *2. Model 9325 Power Cord , 9418-15 AC Adapter, or 9248

Power Cord (when using the Model 9687)

*3. Model 9418-15 AC Adapter or 9248 Power Cord (when

using the Model 9687) *4. Model 9318 Conversion Cable or 9555-10 Sensor Unit *5. Model 9319 Conversion Cable, 3272 Power Supply, 3269

Power Supply, or 9687 Probe Power Unit *6. Model 9555-10 Sensor Unit*

*7. Model 3272 , 3269 Power Supply, or 9687 Probe Power

Unit

*8. Set the instrument to [Voltage] measurement mode

when using combinations that do not include the Model 8940, and with the c ombinatio n of the 8940 and Model 9018-50 or 9132-50. (p. 56)

*9. Up to six units can be used with the 9325

Up to eight clamps can be used When the 9325 and clamps are used at the same

time, up to eight can be used *10. Not applicable to CE Marking *1 1: Th e Model 9 243 Gra bbe r Clip ca n also be conn ected .

About Scaling settings: Voltage acquired from the sensor is converted to the corresponding physical measurement units for display.

See "5.4 Converting Input Values (Scaling Function)" in

the Instruction Manual

1.3 List of Input Modules, Cables, Probes and Clamp Combinations

Measurement

Parameter

Electric Charge, Acceleration, Pressure, Torque, Displacement

Use to connect

Strain Gauge Transducer

Input Module

8936 8937 8938 8939 8940 8946 8947 8956 8957 8958 8959 8960 8961

−−−

−−−−−−−

−

• Model 8936 Analog Unit (p. 19)

• Model 8937 Voltage/Temp Unit

(p. 20)

• Model 8938 FFT Analog Unit (p. 19)

• Model 8939 Strain Unit (p. 22)

• Model 8940 F/V Unit (p. 23)

• Model 8946 4-Ch Analog Unit (p. 19)

• Model 8947 Charge Unit (p. 26)

• Model 8956 Analog Unit (p. 19)

• Model 8957 High Resolution Unit

(p. 19)

• Model 8958 16-Ch Scanner Unit

(p. 28)

• Model 8959 DC/RMS Unit (p. 30)

• Model 8960 Strain Unit

(p. 22)

• Model 8961 H igh Voltage Unit (p. 31)

Connections Chapter 2

This chapter descr ibes the installation and connection of input modules to the instrument. Refer to the Quick Start Manual for other con necti ons .

Input modules for measurement (analog inputs)

1 Install the input module(s) in the instrument’s input module compartment.

(p. 16)

2 Connect the cables and sensors to the input module(s).

Connection items d iffer according to your appli cation. Refer to the descri ption of eac h input module.

Also refer to the following sections when measuring voltage and current:

• Using Connection Cables (p. 18) (Voltage measurement)

• Using Differential Probes (p. 34) (Voltage measurement)

• Using Attenuating Probes (p. 38) (Voltage measurement)

• Using Clamps (p. 32) (Current measurement)

• Supplying the power from the Model 9687 Probe Power Unit (p. 44)

3 After making connections, make instrument settings (p. 45).

This Guide describes on ly the procedures for setting the inp ut channels of ea ch input module. Refer to the Quick Start Manual for an overview of all settings, and to the Instruction Manual for the details of each setting.

Measurements with logic probes (logic inputs)

1 Connect the logic probes to the LOGIC receptacles on the instrument

(p. 40).

2 After connecting, perform settings on this instrument (p. 83).

UNIT

45 8

8958

UNIT

45 8 1

UNIT

45 8

Installation examples (installing four Model 8946s, one 8958 and either additional input modules or blank panels)

8946 8946 8946 89468958 8946 8958

OKOK

2.1 Installing Input Modules (Adding or Replacing)

2.1 Insta lling Input Modules (Adding or Replacing)

Input modules specifi ed at the time the i nstr ume nt is orde re d are s upp li ed pr einstalled. Use the following procedures to add or replace input modules, or to remove them from the instrument.

Preparations

• To avoid electric shock accident, before removing or replacing an input module, confirm that the instrument is turned off and that the connection cords are disconnected.

• The mounting screws must be firmly tightened or the input module may not perform to specifications, or may even fail.

When an input module is not used

• To avoid the da nger of elect ric shock, never opera te the instrume nt with an input module removed. To use the instrument after removing an input module, install a blank panel over the opening of the removed module.

When the Model 8961 High Voltage Unit is used

• Only a maximum of FOUR units of Model 8961 High Voltage Unit may be installed in Model 8861-50/8861-51 M emory HiCorder. To avoid the danger of electric shock, install no more than four 8961s.

To avoid da magin g input m odule s, do no t touch the inpu t modul e connec tors on this instrument.

Using the Model 8958 16-Ch Scanner Unit

In the following case s, the Model 8958 must be adjusted before use with this instrument.

See "Scanner Unit Zero Position Adjustmen t" (p. 29)

• When installing the Model 8958 16-Ch Scanner Unit in this instrument

• When the zero position has shifted due to aging or environmental changes

When using the Model 8958 16- Ch Scanner Unit togeth er with four Model 894 6 4-Ch Analog Units at th e same time, the 8946s cann ot all be installed in UNIT locations 1 to 4 in the Model 8861-50/8861-51. In this case, no more than three 8946s can be installed in UNIT locations 1 to 4.

Adding an Input Module

A confirmation dialo g asks whether to reset the settings on th e Sheet Settings screen at starting (power-on) time. When the settings are reset, waveforms from all installed input modules (including added modules) are set to display. Until the settings are reset, the Sheet Settings screen is unaffected by added modules. To display waveforms from an added input module, select the corresponding display channel on the Sheet Settings screen. Even when waveform display is enabled ([On]), a waveform is not displa yed unle ss it has be en enable d for display on the Sheet Settings screen.

See "7.2.6 Assigning Display Channels to Graphs (Analog Channels)" in the Instruction

Manual

Required item: One Phillips-head screwdriver

1 Turn the instrument’s POWER switch Off. 2 With attention to the orientation of the input module,

insert it firmly all the way in.

Make certain that the labe ls on the input mo dule’s panel fa ce the same direction as the l abels on the rig ht side of the inst rument.

3 Using the Phillips screwdriver, tighten the two input

module mounting screws.

When the instrument is positioned vertically as illustrated, module number o ne is at the left, and c hannel num ber one is at the bottom.

Information about the input modules installed in the instrument can be verified on the initial screen that appears when power is t ur n ed on , a nd i n t h e [Config] menu on the System screen.

Channel Configuration

Module No. (UNIT)

Channel

(CH)

Input Module

Compartment

UNIT1

CH1

CH2

CH3

CH4

UNIT3UNIT2

UNIT4

CH1

CH2

8947

8946

CH1

CH4

CH16

8958

Installing an input module

Right Side

Removing an input module

1 Turn the instrumen t’s POWER switch Off. 2 Remove any cables or thermocouples connected to

the input module.

3 Remove the power cord. 4 Using the Phillips screwdriver, loosen the two input

module mounting screws.

5 Grasp the handle and pull the module out.

If the input module has no handle, pull it out by grasping the connectors.

Right Side

Required item: One Phillips-head screwdriver

Handle

(Example: 8956)

Blank panel

Install a blank panel. Using the Phillips screwdr iver, tighte n the two moun ting screws.

Measurements made without a blank panel installed may fail to meet specificatio ns because of temperature instability within the instrument.

If not installing another input module after removal

Right Side

2.1 Installing Input Modules (Adding or Replac ing)

2.2 Connecting the Cables

2.2.1 Connection Preparations

Read the following carefully before making connections.

For voltage measurement

About maximum input ratings of input modules and cables

• The maximum input volt a ge is the lesser rating of either the input module or the cable to be used. Do not measure if this voltage would be exceeded, as damage the instrument or a serious accident may result. Example: When connecting the Model L9197, 9197 Connection Cord (500 Vmax) to the Model 8936 Analog Unit (400 Vmax), the maximum input voltage for measurement is 400 V DC.

For details of maximum input voltages, refer to "1.1 Product Overview"

(p. 5)

and "Chapter 5 Specifications" (p. 87).

• When connecting clip-type test leads to live termina ls, be very ca reful to avoid accidentally shorting conductors together and causing a serious accident.

• When measuring voltage in a power line, connection cables should only be connected to the sec ond a ry s ide o f a b re ake r, so the breaker can prevent an accident if a short circuit occurs. Connections should never be made to the primary side of a bre aker, because unrestricted curre nt flow could cause a serious accident if a short circuit occurs.

• Do not permanently connect the device in an en vi ron men t w here vo ltage surges exceeding the maximum input voltage may occur. Failure to observe this precaution could result in damage to the device and personal injury.

• Do not use cables and clips other than those specified by Hioki. The specified cables include insulated plugs to avoid electric shock. Bare metal plugs may cause electric shock or damage to the connector.

• Do not connect a cable to the instrument while it is connected to the object to be measured. Otherwise, an electric shock accident may occur.

Use only the specif ied connection cords and clips. Usin g a non-specified c able may result in incorrect measurements due to poor connection or other reasons.

Using cables with BNC connectors

When disconnecting the BNC connec tor, be sure to release the lock be fore pulling off the connector. Forcibly pulling the connector without releasing the lock, or pulling on the cable, can damage the connector.

When using the Model 8958 16-Ch Scanner Unit together with other input modules

Do not attempt to measure the same signal with the 8958 and another input module at the same time. Channel switching noise from the 8958 may affect the other input module.

2.2 Connecting the Cables

Input modules

• Model 8936 Analog Unit

• Model 8956 Analog Unit

• Model 8946 4-Ch Analog Unit *

• Model 8938 FFT Analog Unit

• Model 8957 High Resolution Unit Maximum Input Voltage (p. 4)

Any of the following connects to a BNC jack on an input module.

• Model L9197 Connection Cord Model 9197 Connection Cord

Maximum input voltage: 500 V (large alligato r clip s)

• Model L9198 Connection Cord

Maximum input voltage: 300 V (small allig ator clips)

• Model L9217 Connection Cord

Maximum input voltage: 300 V (for BNC output)

If the voltage to be measured exceeds the maximum input rating of the input module being used:

• Model 9665 10:1 Probe*

(p. 38)

• Model 9666 100:1 Probe*

(p. 38)

• Model 9322 Differential Probe*

(p. 34)

*1. Use Model L9198 Connection Cords

for the Model 8946 4-Ch Analog Unit.

*2. Incompatible with the Model 8946 4-

Ch Analog Unit.

*3. The Model 9418-15 AC Ada pter op tion

is required for connection (p. 36).

1 Connect the BNC plug on the cabl e to a

BNC jack on the input module. Align the slots in the BNC plug with the

guide pins on the jack on the input module, then push and twist the plug clockwise until it locks.

2 Connect the cable clips to the measure-

ment object.

Disconnecting BNC connectors

Push the BNC p lug, twist it countercloc kwise, and pull it out.

Example: Model 8936 Analog Unit

Required item: One of the above cables

BNC jack

Connection Procedure

Lock Input module connector guide pins

BNC plug slots

Connect to the measurement object

Connecting the cable

2.2.2 Connecting to an Analog Unit (Models 8936, 8938, 8946, 8956 and 8957)

Be sure to read "2.2.1 Connection Preparations" (p. 18) before connecting.

Input module

Model

8937 Voltage/Temp Unit

Maximum Input Voltage (p. 4)

Voltage Measurement: Any of the following connects to a BNC jack on an input

module.

Temperature Measurement: Connect the thermocouple to the terminal block.

(Recommended cables (p. 21))

• Model L9198 Connection Cord

Maximum input voltage: 300 V (small alligator clips)

• Model L9217 Connection Cord

Maximum input voltage: 300 V (for BNC output)

If the voltage to be measured exceeds the maximum input rating of the input module being used:

• Model 9322 Differential Probe(p. 34) *

∗ The Model 9418-15 AC Adapter option

is required for connection (p. 36).

2.2 Connecting the Cables

2.2.3 Connecting to the Model 8937 Voltage/Temp Unit

For voltage measurement, be sure to read "2.2.1 Connection Preparations" (p. 18) before connecting.

About Connections and Inputs

When measuring temperature

The ground (GND) sides of the voltage and temperature inputs for each channel are common. Do not connect and apply both voltage and temperature in puts at the same time. The measurement object could be damaged. Voltage and temperature cannot both be measured simultaneously on one channel.

Observe the following to avoid electric shock.

• When measuring temperature with an uninsulated thermocouple at a point that has a non-zero electric potential, be careful to avoid touching the input module’s terminal block. The terminals may have voltage present.

• The voltage and temperature inputs are electrically isolated from one another.

• The push-button te rminals on the Model 8937 Voltage/Temp Unit ar e for the r-

• Use a tool (screwdriver) to connect and disconnect thermocouples.

• Confirm the po larity o f a thermoc ouple b efore conn ection. Correct v alues ar e

mocouples only. Do not connect anything except a specified thermocouple (type K, J, E, T, N, R, S or B).

not displayed if the thermocouple is connected with reverse polarity.

1 Connect the BNC plug on the cabl e to a

BNC jack on the input module.

Align the slot s in the BNC plug with the guide pins on the jack on the inp ut modu le, then p ush and twist the plug clockwise until it locks.

2 Connect the cable clips to the measure-

ment object.

Disconnecting BNC connectors

Push the BNC p lug, twist it countercloc kwise, and pull it out.

Required item: Connection cord

BNC jack

Connection Procedure: Voltage Measurement

Lock Input module connector guide pins

BNC plug slots

Connect to the measurement object

Connecting the cable

1 Strip insulation from the thermocouple

wires as shown at the left.

Stripping length: approx. 10 mm

2 Push the blade of a flat screwdriver into the

button on the terminal block of the input module.

3 Insert each thermocouple wire into the

appropriate terminal hole while pressing the button. Confirm proper polarity.

4 Release the button.

The thermocouple is conne cte d.

5 Attach to the measurement object.

To remove the thermocouple

Hold the button while pulling the thermocouple wire out.

Terminal Block

Connection Holes

Required item: Thermocouple, flat-blade screwdriver (2.6-mm blade)

Recommended wire: Compatible wire: Single-strand thermocouple wire,

0.4 to 1.2-mm diameter Stripping length: 10 mm

Connection Procedure: Temperature Measurement

Outer Insul a ti o n

10 mm

25 mm

Thermocouple single wires

Inner insulation

Connect to the measurement object

Connecting a Thermocouple

2.2 Connecting the Cables

Input module

Model 8939 Strain Unit

(conversion cable supplied)

Maximum Input Voltage (p. 4)

Connect the strain gauge converter* to the input module jack.

(Depending on the sensor, the supplied conversion cable may be needed.) A bridge box* is required for measurement using a strain gauge.*

∗ The strain gauge converter, strain gauge and bridge box may be

common types available in the market.

Connect to the measurement object

Connecting the Conversion Cable

1 Connect the supplied c onversio n cable to

a receptacle on the input module.

Align the to oth on the inside of the recept acle with the slot in the conversion cable plug, and insert the plug. Inse rt it all the way to th e end of the slot in the plug ring (shaded part in the illustration at the left). When inserted, twist the ri ng clockwise to lock.

2 Connect the strain gauge transducer to

the conversion cable.

3 Attach to the measurement object.

To remove the conversion cable

Push and twist the plug ring counterclockwise to unlock it, then pull the plug out.

Example: Connecting the strain gauge converter with the supplied conversion cable

Required item: Conversion Cable (sup plied ), Strain Gaug e Conv erter

Connection Procedure: Vibration and displacement measurement

Connect to the Strain Gauge Converter

Bridge voltage 8939: 2 V is supplied. 8960: Selectable (2 V/ 5 V/ 10 V)

Input voltage

Connector Pinout

Tooth inside

receptacle

Lock

Connector

guide pin

Plug ring

Slot

The grounds of the instrument and the Connector Shell of the 8960 are not isolated .

2.2 Connecting the Cables

2.2.4 Connecting to a Strain Unit (Mode ls 89 39 and 8960)

When using a conversion cable

• Do not connect a sensor other than the Model 89 39 Strain Unit to the su ppl ie d conversion cable.

• When removing the conversion c able, be su re to relea se the lock b efore pulling the plug out.

Input module

Model 8940 F/V Unit Maximum Input Voltage (p. 4)

Frequency, Pulse Totalization and Duty, and Voltage Measurement:

Any of the following connects to a BNC jack on an input module.

Current Measurement: Connect to the BNC and sensor jacks on the input mod-

ule.

(The connection procedure depends on the clamp being used.)

• Model L9197 Connection Cord Model 9197 Connection Cord

Maximum input voltage: 500 V (large alligato r clips )

• Model L9198 Connection Cord

Maximum input voltage: 300 V (small alligato r clips)

• Model L9217 Connection Cord

Maximum input voltage: 300 V (for BNC output)

If the voltage to be measured exceeds the maximum input rating of the input module being used:

• Model 9322 Differential Probe*

(p. 34)

• Model 3273-50*5Clamp-On Probe*

• Model 3274, 3275, or 3276 Clamp-On Probe*

• Model 9270, 9271, or 9272 Clamp-On Sensor*

• Model 9277, 9278, or 9279 Universal Clamp-On CT*

*1. The optional Model 9325 Pow er Cord ,

Model 9418-15 AC Adapter, or Model 9248 Power Cord (when using the Model 9687) is required for connection. (p. 35)

The following items are required to connect a clamp.

*2. Any of the following models:

9319 Conversion Cable, the 3272 or 3269 Power Supply, or Model 9248 Power Cord (when using the Model

9687)

*3. The Model 3272 or 3269 Power Supply

or Model 9248 Power Cord (when using the Model 9687)

*4. The Model 9318 Conversion Cable or

the Model 9555-10 Sensor Unit

*5. When the Models 8940 and 3273-50

are used tog ether, the input rating of the 3273-50 is 15 A rms.

2.2 Connecting the Cables

2.2.5 Connecting to the Model 8940 F/V Unit

For voltage measurement, be sure to read "2.2.1 Connecti on Preparations" (p. 18) before connecting. For current measurement, read also "2 .3 Conn ectin g Clamp s" (p . 32) .

When measuring current

• Connect the clamp using the Model 9318 or 9319 Conversion Cable The grounds of this instrument and the clamp are not isolated. Pay careful attention to the connections to avoid damage to the equipment and serious injury.

• When us ing the Model 3273-50 Clamp-On Probe To avoid short circuits and serious injury when opening the sensor jaws to measure, if the voltage on the conductor to be measured may exceed safe voltage 1400 V AC withstand voltage), comply with pollution level 2 double (strength) insulation rated for 300 V do not clamp over bare conductors. The core and shield cover are not insulated.

• To avoid electric shock when using a clamp, be careful not to damage the insulation on conductors being measured.

up to 300 V, the conductor should be well-insulated (with

operation. To maint ain safety,

and have

For information about other clamps, see "2.3 Connecting Clamps" (p. 32).

1 Connect the BNC plug on the cabl e to a

BNC jack on the input module.

Align the slot s in the BNC plug with the guide pins on the jack on the inp ut modu le, then p ush and twist the plug clockwise until it locks.

2 Connect the cable clips to the measure-

ment object.

Disconnecting BNC connectors

Push the BNC p lug, twist it countercloc kwise, and pull it out.

Required item: Connection Cables

BNC jack

Connection Procedure: Frequency, Pulse Totalization and Duty, and Voltage Measurement

Lock Input module connector guide pins

BNC plug slots

Connect to the measurement object

Connecting the cable

1 Align the slot in the co nversion ca ble plug

with the sensor receptacle on the input module, then insert a nd twist the p lug unti l it locks.

2 Align the slot in the sens or cab le plu g with

the conversion cable receptacle, then insert and twist the plug until it locks.

3 Clamp the sensor around the measure-

ment object.

To remove the conversion cable

Push and twist the plug to unlo ck it, then pull it out.

Example: When connecting the Model 9272 Clamp-On Sensor

Required item: Model 9318 Conversion Cable and 9272 Clamp-On Sensor

Sensor connector

Connection Procedure: Current measurement (with Model 9318 Conversion Cable)

(for Model 9270 to 9272 Clamp-On Sensors and Model 9277 to 9279 Universal Clamp-On CTs)

Connect to the measurement object

Connecting the clamp and the

Mode 9318 Conversion Cable

Conversion Cable Receptacle

Conversion Cable Plug

9272

Clamp-On Sensor

Clamp-On Sensor Plug

2.2 Connecting the Cables

T o maint ain safety, always use the optional Model 9318 or 9319 Conversion Cables when using one of theses clamp models: 3 273-50, 9270 – 9272 o r 9277 – 9279.

Connection Procedure: Current measurement (with Model 9319 Conversion Cable)

(for Model 3273-50 Clamp-On Probe)

1 Align the slots in the clamp- on probe plug

with the pins on the input module’s BNC jack, press and twist.

2 Align the groove in the conversion cable

plug with the sensor receptacle on the input module, then insert and twist the plug until it locks.

3 Align the groove in the probe’s power

cable plug with the conversion cable receptacle, and mate the connectors.

4 Clamp the sensor around the measure-

ment object.

To remove the conversion cable

Push and twist the plug to unlo ck it, then pull it out.

Example: When using the Model 3273-50 Clamp-On Probe

Required item: Models 9319 Conversion Cable and 3273-50 Clamp-On Probe

BNC jack

Sensor Receptacle

Connect to the measurement object

Connecting the clamp and the

Model 9319 Conversion Cable

Conversion Cable Receptacle

Measurement Signal Plug Alignment Notch

3273-50 Clamp-On Probe

Conversion Cable Plug

Power Cable Plug

2.2 Connecting the Cables

Input module

Model 8947 Charge Unit Maximum Input Voltage (p. 4)

Measurement using a piezoelectric acceleration sensor: Connect to the BNC jack or miniature receptacle

(according to the particular sensor).

Voltage measurement*

Connect to the BNC jack on an input module.

Model L9198 Connection Cord (recommended)

• Preamplified acceleration sensor *

(BNC connector, 2-mA, 15-V power supply)

• Charge-output type piezoelectric acceleration sensor *

(Miniature #10-32 connector)

*1. A commercially available acceleration

sensor can be used.

*2. For voltage measuremen t, the connec-

tion procedure is described in "2.2.2

Connecting to an Analog Unit (Models 8936, 8938, 8946, 8956 an d 8957 )" (p.

19).

2.2 Connecting the Cables

2.2.6 Connecting to the Model 8947 Charge Unit

Before measuring voltage and connecting to the BNC jack, be sure to read "2.2.1 Connec-

tion Preparations" (p. 18).

Connection Preparations

• Ne ver connect the cable t o the ins trument while c onnected to a mea surement object. An electric shock could result.

• The BNC jack for each channel and the miniature receptacles all share common ground. To avoid short circuits, do not connect to two receptacles at the same time.

• To avoid electric shock or damage to the measurement object, turn the instrument off while connecting a sensor or probe to the BNC jack. When the [Pream p] measurement mode is selected, internal power (15 V @ 2 mA) is applied to the BNC jack when measurement starts.

About preamplified acceleration sensors

The sensor should be compatible with the spe cification (15 V @ 2 mA) o f the Model 8947 Charge Unit. Incompatible sensors are likely to be damaged.

1 Connect the BNC plug from th e se nsor to

a BNC jack on the input module.

Align the slots in the BNC plug with the guide pins on the jack on the input m odule, then push and twist the plug clockwise until it locks.

2 Connect the sensor to the measur ement

object.

Disconnecting BNC connectors

Push the BNC plug, twist it counterclockwise, and pull it out.

Required item: Preamplified acceleration sensor

BNC jack

Connection Procedure: Using a preamplified acceleration sensor

When using a sensor/preamp that has no BNC plug Use an adapter or conversion cable to connect to the BNC jack.

Lock Input module connector guide pins

BNC plug slots

Connect to the measurement object

Connecting a preamplified

acceleration sensor

1 Connect the miniature plug from the

charge-output acceleration sensor to the receptacle on the input module, and twist the plug clockwise until tight.

2 Connect the sensor to the measur ement

object.

To disconnect the miniature connector, twist the plug counte rclockwi se and pull it out.

Required item: Charge-output accelera tion sensor

Miniature Connector

Connection Procedure: Using a charge-output acceleration sensor

With a charge-output sensor that does not have a (#10-32) miniature connector Use an adapter or conversion cable to connect to the miniature connector.

Connect to the measurement object

Connecting the charge-output

acceleration sensor

2.2 Connecting the Cables

Input module

Model 8958 16-Ch Scanner Unit Maximum Input Voltage (p. 4)

Connect to the terminal block on the input module.

Temperature Measuremen t: Thermoc oupl e Voltage Measurement: Input Cable

Recommended cables: Solid 0.14 to 1.5 mm

Stranded 0.14 to 1 mm

16 to 26 AWG

Connect to the measurement object

Connecting to the terminal block

1 Strip back the insulation from the thermo-

couple wires as shown at the left.

Stripping length: approx. 5 mm

2 Remove the terminal block cover from the

input module.

3 Loosen the screws in the input module’s

terminal block using the screwdriver.

4 Insert the thermocouple wires in to the con-

nection holes. Confirm proper polarity.

5 Tighten the screws in the terminal block

using the screwdriver to affix the thermocouple leads.

6 Replace the terminal block cover. 7 Attach the thermocouple to the measure-

ment object.

Terminal Block

Example: Connecting a thermo couple for temperatu re measureme nt (the c onnection pr ocedure i s the same for voltage measurement)

Connection Holes

Required item: Thermocouple, flat-blade d screw driv er (sup pl ied )

Connection Procedure (for both temperature and voltage measurements)

5 mm

Thermocouple single wires

Screw

Thermocouple

Terminal Block

Cover

The terminal block can be detached from the Model 8958 16Ch Scanner Unit.

How to detach:

Loosen the screws at the top and bottom of the terminal block (left illustration). When attaching, be careful not to overtighten the screws .

With cover in place

Screw

Terminal Block

Turn the cover over and place the terminal block on it as shown above for stability while making connections.

Terminal Block

Cover

If difficulties are encountered connecting input cables or thermocouples

To remove the thermocouple

Loosen the screws on the terminal block and pull the wires out.

2.2 Connecting the Cables

2.2.7 Connecting to the Model 8958 16-Ch Scanner Unit

2.2 Connecting the Cables

The zero position of the Model 8958 16-Ch Scanner Unit needs to be ad justed in the following cases. If the adjustment is not performed, the accuracy specification may not be satisfied. Allow one hour

warm-up after turning power on before adjusting.

• When the Model 89 58 16-Ch Sc an ner Un it has jus t be en ins talle d i n th e i nstr ume nt (a me ssage requesting adjustment appears when the instrument is turned on)

• When the zero pos ition has shifted due to aging or environmental changes

Init Settings Screen

1 Short the + and – terminals of c hannels 1

and 9 on the Mode l 8958 16-Ch Scanner Unit to be adjusted.

2 Press F7 [System] on the Openin g screen,

or place the curs or on the Function menu of the Waveform or Settings screen, and press the F7 [System] key.

The System screen appears.

3 Press the SUB MENU keys to select the

[Init] menu item.

The Initialization (Init) Settings screen appears.

4 Using the CURSOR keys, place the cursor

on the [Adjust Scanner Unit] button, and press the F1 [Execute] key.

The Adjustment dialog box appears.

5 Select the module to be adjusted, and

press the F7 [Execute] key. To cancel, press the F8 [Cancel] key.

A processing messa ge ap pears when execute d, and the 8958 16-Ch Scanner Unit is adjusted.

Adjustment is complete when “Completed normally” appears.

Waveform or Settings Screen

Function Menu

Supplied shorting bar or tinned wire.

CH1

CH9

Opening Screen

Scanner Unit Zero Position Adjustment

Tighten the screws securely.

Input module

Model 8959 DC/RMS Unit Maximum Input Voltage (p. 4)

Any of the following connects to a BNC jack on an input module.

• Model L9197 Connection Cord Model 9197 Connection Cord

Maximum input voltage: 500 V (large alligator cl ips)

• Model L9198 Connection Cord

Maximum input voltage: 300 V (small alligator clips)

• Model L9217 Connection Cord

Maximum input voltage: 300 V (for BNC output)

If the voltage to be measured exceeds the maximum input rating of the input module being used:

• Model 9665 10:1 Probe (p. 38)

• Model 9666 100:1 Probe (p. 38)

• Model 9322 Differential Probe*

(p. 34)

*1. The Model 9418-15 AC Ada pter op tion

is required for connection (p. 36).

1 Connect the BNC plug on the cabl e to a

BNC jack on the input module.

Align the slot s in the BNC plug with the guide pins on the jack on the inp ut modu le, then p ush and twist the plug clockwise until it locks.

2 Connect the cable clips to the measure-

ment object.

Disconnecting BNC connectors

Push the BNC p lug, twist it countercloc kwise, and pull it out.

Required item: One of the above cables

BNC jack

Connection Procedure

Lock Input module connector guide pins

BNC plug slots

Connect to the measurement object

Connecting the cable

2.2 Connecting the Cables

2.2.8 Connecting to the Model 8959 DC/RMS Unit

Be sure to read "2.2.1 Connection Preparations" (p. 18) before connecting.

2.2 Connecting the Cables

Input module

Model 8961 High Voltage Unit Maximum Input Voltage (p. 4)

Connect to the terminal on the input module.

Model 9242 Connection Cord

Maximum input voltage: 1000 V (dolphin clips)

The supplied Model 9243 Grabber Clip can also be connected.

Model 9242 Connection Cord

1 Connect the cable plugs (at the end with fer-

rite beads) to the input module terminal.

2 Insert the other ends of the cables into the

supplied or optional clips.

3 Connect the cable clips to the measurement

object.

Required item: above cable

Connection Procedure

Connect to the measurement object

Ferrite beads

Supplied clips

Supplied Model 9243 Grabber Clip

Securely attach the clips to the screws on the terminal strip or bus bar.

Connection Example

Connect each plug to the terminal of the same color.

2.2.9 Connecting to the Model 8961 High Voltage Unit

Be sure to read "2.2.1 Connection Preparations" (p. 18) before connecting.

Connection Preparations

• For safety reasons, when taking measurements, only use th e specified HIOKI 9242 Connection Cord or optional 9243 Grabber Clip. Using a nonspecified cable may cause an electric shock.

• Only a maximum of FOUR units of Model 8961 High Voltage Unit may be installed in Model 8861-50/8861- 51 Memory HiCorder. To avoid the d anger of electric shock, install no more than four 8961s.

2.3 Connecting Clamps

Because it measures on ly voltag e input, curr ent is not me asured dire ctly by this instrument. Use a clamp that provides voltage output for current measurement. Refer to "1.3 List of Input Modules, Cables, Probes and Clamp Combinations" (p.

13) for compatible combinations of Hioki clamps and input modules.

Refer also to the clamp’s Instruction Manual for clamp-specific details.

Preparations for Using Clamps

Connect the clamp-on sensors to the instrument first, and then to the active lines to be measured. O bserve the follo wing to avoid ele ctric shock and short circuits.

• To avoid short circuits and potentially life-threatening hazards, never attach the clamp to a circuit that operates at more than the maximum rated voltage, or over bare conductors.

• Clamps s hould only be connected to the secondary side of a breaker, so the breaker can prevent an accident if a short circuit occurs. Connections should never be made to the primary side of a breaker, because unrestricted current flow could cause a serious accident if a short circuit occurs.

• When the clamp sensor is opened, do not allow the metal part of the clamp to touch any exposed metal, or to short between two lines, and do not use over bare conductors.

To avoid electric shoc k when measuring live lines, wear appropriate protective gear, such as insulated rubber gloves, boots and a safety helmet.

• To prevent damage to the instrume nt and clam p, neve r connect or di sconnect a sensor while the po wer is on, or while the sensor is cl amped around a c onductor.

• Be careful to avoid dropping the clamps or otherwise subjecting them to mechanical shock , which could damage the mati ng surfaces of the core and adversely affect measurement.

• Measurements are a ffected by the combi ned accuracy of thi s instrument an d

the clamp.

• The measured value is displayed as voltage [V], although this can be

converted for display as current [A] using the Scaling function.

See "5.4 Converting Input Values (Scaling Function)" in the Instruction Manual

• In the following cases, scaling setup is necessary:

(1) When using a clamp with a voltage measurement input module other than

the Model 8940 F/V Unit

(2) When connecting a clamp to the Model 8940 F/V Unit without the Mode l

9318 or 9319 Conversion Cable

For details about connecting clamps to the Model 8940 F/V UNIT:

See "2.2.5 Connecting to the Model 8940 F/V Unit" (p. 23).

1 Connect the probe to a BNC jack on the

input module.

2 Clamp the sensor around the measure-

ment object. Disconnecting BNC connectors

Push the BNC plug, twist it c ounterclockwise, and pull it out.

Example: Connecting the Model 9018-50 Clamp-On Probe to the 8936 Analog Unit

Required item: 9018-50 Clamp-On Probe

BNC jack

Connection Procedure

Conductor

Current flow direc-

tion arrow

The arrows on the clamp indicating the direction of current fl ow should point towar d the load side.

9018-50 Clamp-On Probe

Attach the clamp around only one conductor. Single-phase (2-wire) or three-phase (3wire) cables clamped together will not produce any reading.

Lock

Input module connector guide pins

BNC plug slots

Connect to the measurement object

Connecting Clamps

For connection details, refer to "2.2.5 Connecting to the Model 8940 F/V Unit" (p. 23).

2.3 Connecting Clamps

Grabber clip

(CAT II) 2000 V DC, 1000 V AC (CAT III) 600 V AC/DC

(CAT II) 1500 V AC/DC (CAT III) 600 V AC/DC

Between H-L H-to-ground

L-to-ground

(CAT II) 2000 V DC, 1000 V AC (CAT III) 600 V AC/DC

(CAT II) 1000 V AC/DC (CAT III) 600 V AC/DC

Between H-L H-to-ground

L-to-ground

Alligator clip

2.4 Connecting a Differential Probe

Input modules that are compatible with the Model 9322 Differential Probe:

Model 8940 F/V Unit*

•

• Voltage measurement input modules (BNC jack) other than the Model 8940 *

*1. The Model 9325 Power Cord or Model 9418-1 5 AC Ad ap ter i s requ ire d fo r c onn ec tion . *2. The Model 9418-15 AC Adapter is required for connection.

Refer to the instruction manual for the 9322 Differential Probe.

• Maximum input voltage (CAT II) 2000 V DC, 1000 V AC, (CAT III) 600 V AC/DC

• Maximum rated voltage to earth When using the Grabber clip: (CAT II) 1500 V AC/DC, (CAT III) 600 V AC/DC When using the Alligator clip: (CAT II) 1000 V AC/DC, (CAT III) 600 V AC/DC

When using an input module (BNC jack) other than the Model 8940 F/V Unit

• Turn the instrument off before connecting the AC adapter to the 9322 and to AC power.

• Use only the specified Model 9418-15 AC Adapter. AC adapter input voltage range is 100 to 240 VAC (with ±10% stability) at 50/60 Hz. To avoid electrical hazards and damage to the instrument, do not apply voltage outside of this range.

1 Connect the power cord to the power jack

on the probe.

2 Connect the other end of the power cord

to the sensor receptacle on the 8940 F/V Unit

3 Connect the BNC plug on the probe to a

BNC jack on the input module.

4 Connect an alligator clip or grabber clip to

the input lead of the probe.

5 Attach to the measurement object.

Disconnecting BNC connectors

Push the BNC plug, twist it counterclockwise, and pull it out.

Required item: Model 9322 Differential Probe and 9325 Power Cord

9325 Power Cord

BNC jack

Connection Procedure: When connecting to the Model 8940 F/V Unit (using the 9325 Power Cord)

Connect to the measurement object

Power jack

Input leads

Sensor connector

Lock

Input module connector guide pins

BNC plug slots

BNC connector

Set the [Probe] selection on the Channel Setting screen to [9322+9325].

When connecting to the Model 8940 F/V Unit (using the 9418-15 AC Adapter)

Set the [Probe] selection on the Channel Setting screen to [9322+9418].

Refer to "Connection Procedure: Measur-

ing voltage with the input module (using the Model 9418-15 AC Adapter)" (p. 36) for

connection details.

2.4 Connecting a Differential Probe

1 Connect the BNC plug on the probe to a

BNC jack on the input module.

2 Connect the AC adapter to the power jack

on the probe, and plug it into an AC outlet.

3 Connect an alligator clip or grabber clip to

the input lead of the probe.

4 Connect to the measurement object.

Disconnecting BNC connectors

Push the BNC plug, twist it counterclockwise, and pull it out.

Required item: 9322 Differential Probe and 9418-15 AC Adapter

BNC jack

Connection Procedure: Measuring voltage with the input module (using the Model 9418-15 AC Adapter)

Connect to the measurement object

Power jack

Input leads

Lock

Input module connector guide pins

BNC plug slots

BNC connector

Example: Connecting to the Model 8936 Analog Unit

Connect the Model 9418-15 AC Adapter

Connect to an AC outlet

Set the [Probe] selection on the Channel Setting screen to [1000:1].

2.4 Connecting a Differential Probe

Model 9687 Probe

Power Unit

1 Connect the BNC plug on the probe to a

BNC jack on the input module.

2 Connect the Model 9248 Power Cord to

the power jack on the probe, and plug it into the Model 9687 Probe Power Unit.

3 Connect an alligator clip or grabber cli p to

the input lead of the probe.

4 Connect to the measurement object.

Disconnecting BNC connectors

Push the BNC plug, twist it counterclockwise, and pull it out.

Required item: Model 9322 Differential Probe and Model 9248 Power Cord

BNC jack

Connection Procedure: Supplying power from the Model 9687 Probe

Power Unit (Using the Model 9248 Power Cord)

Connect to the measurement object

Power jack

Input leads

Lock

Input module connector guide pins

BNC plug slots

BNC connector

Example: Connecting to the Model 8936 Analog Unit

Connect the Model 9248 Power Cord

Connect the Model 9687 Probe Power Unit

Set the [Probe] selection on the Channel Setting screen to

[1000:1].

When using the Model 8940, select

[9322+9325] or [9322+9418]. Either setting is

acceptable.

2.4 Connecting a Differential Probe

1 Connect the BNC plug on the probe to a

BNC jack on the input module.

2 Connect the ground lead to the probe. 3 Connect the hook clip to the probe. 4 Connect to the measurement object.

Disconnecting BNC connectors

Push the BNC plug, twist it counterclockwise, and pull it out.

Required item: 9665 10:1 Probe

BNC jack

Connection Procedure

Connect to the measurement object

Ground lead

Lock

Input module connector guide pins

BNC plug slots

BNC connector

Example: Connecting the Model 9665 10:1 Probe to the 8936 Analog Unit

Hook Clip

2.5 Connecting Attenuating Probes

The Model 9665 10:1 Probe and 966 6 100:1 Probe can be connected t o the following input modules:

• Model 8936 Analog Unit

• Model 8938 FFT Analog Unit

• Model 8956 Analog Unit

• Model 8957 High Resolution Unit

• Model 8959 DC/RMS Unit

Refer to the probe’s instruction manual for details.

Note the following maximum input voltage and maximum rated voltage to earth. If their voltages are exceede d, this device will be damaged and personal injury will result. Therefore, do not perform measurement in this case. The measurement category ( overvoltage category) must correspond with that of the input module being used.

• Maximum input voltage Model 9665 10:1 Probe 1000 Vrms (500 kHz max) Model 9666 100:1 Probe 5000 Vpeak (1 MHz max)

• Maximum rated voltage to earth The maximum rated voltage to ground of the input module being used

Calibrate the attenuating probe before measurement. Procedure:

"Calibration" (p. 39)

1 Connect the metal pins or lead wires to the

TRIG.OUT

/CAL and GND I/O terminals.

While pressing the terminal button with the screwdriver, insert the metal pin or lead wire. Removing the screwdriver affixes the pin or wire.

2 Connect the hook clip of the probe to the

metal pin or lead wire in the TRIG.OUT

/CAL terminal, and the ground lead to the GND terminal.

3 Select the [Ext Term] menu from the System

screen, and select [Calibration] for the

[TRIG.OUT

/CAL] setting.

4 Select the following for each settings screen.

5 Press the instrument’s START key to begin

recording.

A 1-kHz, 5-V square wave is displayed and output at the terminals.

6 Adjust the trimmer on the prob e to obta in t he

proper waveform on the screen.

Settings Screen Setting Item Settings Function MEM

Status

Timebase 100

μS/div

Shot (recording length)

25 div

Channel

Range 1V/div Coupling DC LPF OFF Probe "3.11.15" (p. 78)

Trigger

Trigger Mode Repeat

[Analog] page

Type Level Level 2.5V

Slope

↑

Calibration

Right Side

Waveforms indicating calibration required

Calibrated waveform

Required item: Flat-blade screwdriver (2.6-mm blade) Connect the probe between the TRIG.OUT/CAL and GND external I/O terminals using metal pins or two short leads Metal pin example: Mac8

• DH-4-20 pin for surface mounting

• Terminal for hybrid ICs CD-5-20, CF-1-15 and CA-7-3

(Attenuating probes do not connect directly to the external I/O terminals.)

Ext Term Settings Screen

5 V

500 μs

TRIG.OUT/CAL

Hook Clip

Ground Lead

Press the DISP key, and the F7 [System] key. The System screen appears. Press the SUB MENU keys to se lect the [Ext Term] (Ex- ternal terminal) menu.

Attenuating probe

To Insert

Push

Pull

External I/O Terminals

(Any GND terminal may be used)

Calibration

Trimmer

GND

2.5 Connecting Attenuating Probes

Measurement Object

Memory

HiCorder

Logic probe

Functional Earth Terminals

GND

Connect this instrument to the same outlet as the measurement ob ject using the (supplied) grounding polarized power cord.

Connect the measurement object’s ground to the GND terminal of this instrument. (Always obtain power from the same mains circuit.)

About Functional Earth:

Memory

HiCorder

Measurement Object

See "3.5 Grounding the Instrument’s Functional Earth" in the Quick Start Manual

2.6 Connecting Logic Probes

Up to four logic probes can be connected to the LOGIC receptac les on the right side of the instrument. Each logic probe provides four logic input channels, so up to 16 logic waveforms can be recorded.

The following logic probes are supported:

• Model 9327 Logic Probe

• Model MR9321-01 Logic Probe

• Model 9320-01 Logic Probe Refer to the instruction manual supplied with the logic probe for specific details.

Do not connect logic probes other than those supplied by Hioki to the logic inputs.

For users of the following legacy models:

Models: 9306, 9307, 9320 and 9321 These can be used with this instrument by connecting the Model 9323 Conver-

sion Cable.

Before connecting a logic probe to the measurement object

To avoid electric shock and short circuit accidents or damage to the instrument, pay attention to the following:

• The ground pin in the LOGIC connector (plug) of the Model 9320-01 and 9327 Logic Probes (and legacy Models 9306 and 9320) is not isolated

from this instrument’s ground (common ground). Use grounding-type polarized power cords for the measurement object and this instrument, and obtain power from the same main s ci rcuit. Connecting to different mains circuits or using a non-grounding power cord may cause damage to the measurement object or this instrument because of current flow through the logic probes resulting from potent ial difference between the grounds of the different wiring systems. To avoid these problems , we recommend the following c onnection procedure:

Connection Procedure

Connect to the measurement object

See "Logic Probe Usage Procedures" (p. 42)

Right Side

Example: Connecting the Model 9327 Logic Probe

1 Connect the logic probe by aligning the

groves on the plug and a LOG IC receptacle.

2 Connect to the measurement object.

Required item: Model 9327 Logic Probe

LOGIC receptacles

2.6 Connecting Logic Probes

• Maximum logic probe input voltages are as follo ws. Do not measure if the maximum voltage would be exceeded, as damage the instrument or personal injury may result.

Model 9327 Logic Probe: +50 VDC Model 9320-01 Logic Probe: +50 VDC Model MR9321-01 Logic Probe: 250 Vr ms ( HI GH ra ng e ) , 150 Vrms (LOW range)

• Do not allow the metal tip of a logic probe to cause a short between conductors on the measurement object. Never tou ch the metal tip of a probe.

When a logic probe is not connected, the corresponding logic waveform appears at HIGH level on the waveform screen.

Using Model 9327 and 9320-01 Logic Probes

Connect to the measurement object

When measuring digital signals (Digital input)

1 Connect the IC clip leads to the logic

probe.

2 Set the input selector to DIGITAL. 3 Connect the alligator clip to the circuit

ground.

4 Use the threshold value selector to select

the threshold value.

5 Connect the IC clips to the meas urement

object.

When measuring the contact signal (Contact input)

1 Connect the Alli gator cli p leads to the logic

probe.

2 Set the input selector to CONTACT. 3 Connect the alligator cl ips to the measure-

ment object.

IC clip leads

Alligator clip leads

Alligator clip lead

Connect to the measurement object

GND

Input selector

Connect to the LOGIC receptacle

Threshold value selector

2.6 Connecting Logic Probes

Logic Probe Usage Procedures

Range T able

Range Digital input (Threshold v alue) Contact input (Detecting resistance value)

1.4 V 1.4 V±0.3 V

2.5 V 2.5 V±0.4 V

4.0 V 4.0 V±0.5 V

more than 1.5 kΩ less than 500Ω

more than 3.5 kΩ less than 1.5 kΩ

more than 2.5 kΩ less than 8 kΩ

opened (Output L) shorted (Output H)

Using the Model MR9321-01 Logic Probe

Connect to the measurement object

Input selector

Connect to the LOGIC receptacle

Clips

1 Set the input selector in accordance with

the measured voltage. LOW range: On/off for 100 VAC and 24 VDC, etc. HIGH range: On/off for 200 VAC, etc.

2 Connect the clips to the measurement

object.

2.6 Connecting Logic Probes

The number of channels 4 (Isolated between channels and the instrument) Range LOW HIGH Input resistance 30 k Sensitivity Output: L 0 to 10 VAC

Output: H 60 to 150 VAC

Response time

Maximum input voltage 150 V rms 250 V rms Maximum rated voltage

to earth Dielectric strength Insulation resistance

↑ ↓

For other models, refer to the specifications (p. 88).

• Inputs are non-polarized, so polarity can be disregarded.

• Inputs are isolated, so each channel can be connect ed to a point of inde pendent potential.

• This instrument detects absolute values, so DC of either polarity can be input.

• AC voltage is evaluated as a 50/60 Hz standard sine wave.

Ω min 100 kΩ min

0 to 30 VAC

±(0 to 15) VDC

±(20 to 150) VDC Less than 1 ms Less than 1 ms Less than 3 ms Less than 3 ms with 100 VDC with 200 VDC

250 V rms

(between unit and channels, between channels) More than 100 MΩ / 500 VDC

(between unit and channels, between channels)

±(0 to 43) VDC 170 to 250 VAC

±(70 to 250) VDC

Connect the power cables from the probe s to the output connectors of the Model 9687 Probe Power Unit.

Power Output Connector

Connections

2.7 Supplying power from the Model 9687 Probe Power Unit

2.7 Supplying powe r from the Model 9687 Probe Power Unit

The optional Model 9 687 Prob e Power Unit c an be used to s upply p ower to our optional clamp-on and differential probes.

Probe models compatible with the Model 9687 Probe Power Unit

• Models 3273-50, 3274, 3275, 3276 Clamp-On Probes

• Model 9322 Differential Probe (using Model 9248 Power Cord) The power output connectors on the Model 9687 are especially designed for our

clamp-on and differential probes. To avoid damage, do not use the power supply for any purpose other than supplying power.

There are limits to how many probes can be used with the instrument with a 9687 installed. Avoid exceeding the quanti ties in the following table for all probes to be used. When mixing probe types, the lower quantity of usable probes applies.

Probe Usable Quantity 3273-50, 3274, 3276 Clamp-On Probe 6 3275 Clamp-On Probe 5 9322 Diffe rential Probe 8

9687 Probe Power Unit Specifications

See "9687 Probe Power Unit (specify option when ordering)" in "(8) Power Supply

Options" in "15.1 General Specifications" in the Instruction Manual. (p. 400)

• Model 8936 Analog Unit (p. 46)

• Model 8937 Voltage/Temp Unit (p. 47)

• Model 8938 FFT Analog Unit (p. 50)

• Model 8939 Strain Unit (p. 51)

• Model 8940 F/V Unit (p. 52)

• Model 8946 4-Ch Analog Unit (p. 46)

• Model 8947 Charge Unit (p. 58)

• Model 8956 Analog Unit (p. 46)

• Model 8957 High Resolution Unit (p. 61)

• Model 8958 16-Ch Scanner Unit (p. 62)

• Model 8959 DC/RMS Unit (p. 65)

• Model 8960 Strain Unit (p. 51)

• Model 8961 High Voltage Unit (p. 66)

Level Monitor

Shows the input level whi le makin g settings.

See "5.3 Monitoring Input Status" in the

Instruction Manual

Comments can be entered for each channel.

See "5.2 Adding Comments" in the Instruction

Manual

Select the module and channel number to be set.

The display color of acquired waveforms, zero posi-

tion, vertical magnific ation and display range ca n be

changed.

See "7.1 Making Input Waveform Display Settings

(Analog Waveforms)" in the Instruction Manual

Set the scaling if you want to convert the measured

units for display.

Measured val ues ( outp ut vo ltag e) fr om se nsor s can

be converted to physical values appropriate to the

measurement object.

See "5.4 Converting Input Values (Scaling Func-

tion)" in the Instruction Manual

Set up the input channel.

Display appearance depends on the particular input

module. Refer to the description of each module.

Make settings on the Channel Settings screen.

Measurement Range

Indicates the selected range.

1 Press the SET key. 2 Press the SUB MENU keys to select the [Channel] menu. 3 Press the SHEET/PAGE keys to select the [One Ch] page. 4 Use the CURSOR keys to move among the setting items,

and press the F1 to F8 keys to select a setting.

Displayed Range

Indicates the ra nge displa yed on the scre en. To c hange t he displ ay pos ition or range, change the waveform display settings.

Input Channel Settings Chapter 3

After turning power on, set the measurement criteria before measuring. This chapter des crib es the i npu t channel setting procedu re s f or each in put mod ule. Refer to "3.11 About Setting Contents" (p. 67) for details of each setting.

Refer to the Instruction Manual for other settings.

Example: Setting a channel on the Model 8936 Analog Unit

Execute to adjust input signal offset. (p. 79)

12 3

4 5

([One Ch] Page of Channel Setting Screen)

3.1 Analog Unit Settings (Models 8936, 8946 and 8956)

3.1 Analog Unit Settings (Mo dels 8936, 8946 and

8956)

Set the input channel for voltage me asurement when using the following input modules:

• Model 8936 Analog Unit

• Model 8956 Analog Unit

• Model 8946 4-Ch Analog Unit

Setting Procedure

Use the CURSOR keys to move among items. Select a setting with the F1 to F8 ke ys .

Step

Select the module No.

Select the channel No .

Confirm the input module and mea-

surement mode

Select the measurement range

Select the input coupling method

Select the low-pass filter

Select the probe attenuation

Perform zero adjustment

Setting Item

[Unit ]

[Ch ]

[Module]

[Mode]

[Range]

[Coupling]

[LPF]

[Probe]

[

Zero-Adjust

Set up scaling

Description Select the number of the input module to set up.

("Channel Configuration" (p. 17)) Select the channel number on the input module.

Confirm the type of the se lected module.

• Model 8936 Analog Unit..............[Analog]

• Model 8956 Analog Unit..............[H-Speed]

• Model 8946 4-Ch Analog Unit.....[4CH]

Confirm that the display is set for [Voltage] Select the appropriate measurement range. The setting val-

ue is the units per division on the vertical axis. The RANGE/POSN knob selects the range (p. 67). Refer to the specifications for available ranges (p. 90).

Select the coupling method for input signals (p. 68).

[ DC, AC or GND ]

To suppress hi gh- freq uenc y com ponen ts, select a low- pas s filter within the input module (p. 69).

[ Off, 5Hz, 500Hz, 5kHz or 100kHz ]

Select according to the cable or probe being used (p. 78).

[ 1:1, 10:1 , 100:1 or 1000:1 ]

]

Perform at least 30 minutes after turning power on

(p. 79).

Set as occasion demands.

See

"5.4 Converting Input Values (Scaling Function)" in the

Instruction Manual

(in the Model 8936 case)

3.2 Model 8937 Voltage and Temperature Unit Settings

([One Ch] Page of Channel Setting Screen)

Execute to adjust input signal offset. (p. 79)

12 3

5 6

Displayed when the measurement range is 500 µV to 2 mV.

3.2 Model 8937 Voltage and Temperature Unit Settings

3.2.1 Voltage Measurement

Setting Procedure

Use the CURSOR keys to move among items. Select a setting with the F1 to F8 keys.

Step

Select the module No.

Select the channel No.

Confirm the module

Select the measurement mode

Select the measurement range

Select the input coupling method

Select the low-pass filter

Select the probe attenuation

Setting Item

[Unit ]

[Ch ]

[Module]

[Mode]

[Range]

[Coupling]

[LPF]

[Probe]

Description Select the number of the input module to set up.

("Channel Configuration" (p. 17)) Select the channel number on the input module.

Confirm that the display is set for [Volt/Temp].

Select [Voltage].

Select the appropriate measurement range. The setting value is the units per division on the vertical axis. The RANGE/POSN knob selects the range (p. 67). Refer to the specifications for available ranges (p. 92).

Select the coupling method for input signals (p. 68).

[ DC, AC or GND ]

To suppress high-frequency components, select a low-pass filter within the input module (p. 69).

[ Off, 5Hz, 500Hz, 5kHz or 100kHz ]

Select according to the cable or probe being used (p. 78).

[ 1:1, 10:1, 100:1 or 1000:1 ]

Set the digital filter

Perform zero adjustment

Set up scaling

[Digital F]

[

Zero-Adjust

(Effective measurement ranges: 500 µV to 2 mV) Set the digital filter function to be enabled or disabled. Set it to ON to suppress noise components (p. 70).

[ Off or On ]

]

Perform at least one hour after turning power on

(p. 79).

Set as occasion demands.

See

"5.4 Converting Input Values (Scaling Function)" in the

Instruction Manual

([One Ch] Page of Channel Setting Screen)

12 3

The [Voltage] measurement mode is selected upon system reset.

3.2 Model 8937 Voltage and Temperature Unit Settings

3.2.2 Temperature Measurement

Setting Procedure

Use the CURSOR keys to move among items. Select a setting with the F1 to F8 ke ys .

Step

Setting Item

Description

Select the module No.

Select the channel No .

Confirm the module

Select the measurement mode

Select thermocouple

Select the measurement range

Select the low-pass filter

Set the reference junction compensa-

tion

[Unit ]

[Ch ]

[Module]

[Mode]

[Sensor]

[Range]

[LPF]

[RJC]

Select the number of the input module to set up. ("Channel Configuration" (p. 17))

Select the channel number on the input module.

Confirm that the display is set for [Volt/Temp].

Select [Temp].

Select the type of thermocouple (p. 71).

[ K, J, E, T, N, R, S or B ]

Select the appropriate measurement range. The setting value is the units per division on the vertical axis. The RANGE/POSN knob selects the range (p. 67).

[ 10, 20, 50 or 100°C/div ]

To suppress hi gh- freq uenc y com ponen ts, select a low- pas s filter within the input module (p. 69).

[ Off, 5Hz or 500Hz ]

Select whether reference junction compensation should be provided internally (p. 71).

[ Internal or External ]

Set drift correction

Set up scaling

[Drift]

Set whether to cancel variations in th e reference volt age. Set this On to improve the temperature characteristic (p. 72).

[ Off or On ]

Set as occasion demands.

See

"5.4 Converting Input Values (Scaling Function)" in the

Instruction Manual

3.2 Model 8937 Voltage and Temperature Unit Settings

• The upper and lowe r limits of measure ment input depend on the measurement range. Refer to "About Measurement Rang e, Upper and Lower Input Limits and the Waveform Display:" (p. 67).

• When the input terminals of the Model 8937 Voltage/Temp Unit are exposed to strong drafts: Loss of thermal e quilibrium of the input se ction may result in meas urement errors. T o measure in such environments, reposition the equipment so that the input terminals are protected from the drafts.

• When the ambient temperature changes rapidly: Loss of thermal e quilibrium may r esult in measurem ent errors. If this occurs, allow about an hour for the equip ment to acclim atize to the new te mperature, then take measurements after thermal equilibrium is achieved.

• In an environment wit h fluc tuating ambie nt temp erature, when r ecordi ng for a long time using a thermoco uple with weak thermo elect romotiv e force (R, S or B sensors): Temperature characteristic can be improved by setting drift correction On.

•The [Voltage] measurement mode is selected upon system reset.

([One Ch] Page of Channel Setting Screen)

Execute to adjust input signal offset. (p. 79)

12 3

4 5

3.3 Model 8938 FFT Analog Unit Settings

Setting Procedure

Use the CURSOR keys to move among items. Select a setting with the F1 to F8 ke ys .

Step

Setting Item

Description

Select the module No.

Select the channel No .

Confirm the input module and mea-

surement mode

Select the measurement range

Select the input coupling method

Select the low-pass filter

Select the probe attenuation

Set the anti-aliasing filter

[Unit ]

[Ch ]

[Module] [Mode]

[Range]

[Coupling]

[LPF]

[Probe]

[AAF]

Select the number of the input module to set up. ("Channel Configuration" (p. 17))

Select the channel number on the input module.

Confirm that the display is set for [FFT]. Confirm that the display is set for [Voltage].

Select the coupling method for input signals (p. 68).

[ DC, AC or GND ]

To suppress hi gh- freq uenc y com ponen ts, select a low- pas s filter within the input module (p. 69).

[ Off, 5Hz, 500Hz, 5kHz or 100kHz ]

Select according to the cable or probe being used

(p. 78).

[ 1:1, 10:1, 100:1 or 1000:1 ]

Turn this on to suppress anti-aliasing distortion, such as for FFT analysis (p. 70).

[ Off or On ]

Perform zero adjustment

Set up scaling

[

Zero-Adjust

]

Perform at least 30 minutes after turning power on

(p. 79).

Set as occasion demands.

See

"5.4 Converting Input Values (Scaling Function)" in the

Instruction Manual

([One Ch] Page of Channel Setting Screen)

12 3

8939

8960

8 8

(Model 8960 only)

3.4 Strain Unit Settings (Models 8939 and 8960)

3.4 Strain Unit Settings (Models 89 39 and 8960)

Setting Procedure

Use the CURSOR keys to move among items. Select a setting with the F1 to F8 keys.

Step

Setting Item

Description

Select the module No.

Select the channel No.

Confirm the input module and mea-

surement mode

Select the measurement range

Select the bridge voltage

Set the anti-aliasing filter

Select the low-pass filter

Execute auto-balance

Set up scaling

[Unit ]

[Ch ]

[Module] [Mode]

[Range]

[Bridge]

[AAF]

[LPF]

[AutoBalance]

Select the number of the input module to set up. ("Channel Configuration" (p. 17))

Select the channel number on the input module.

Confirm that the display is set for [Strain].

Select the appropriate measurement range. The setting value is the units per division on the vertical axis. (Units: [µ] Microstrain = 1/2 µV/V) The RANGE/POSN knob selects the range (p. 67). Refer to the specifications for available ranges (p. 95).

Select the bridge voltage (p. 78).

[ 2V, 5V, 10V ]

Turn this on to suppress anti-aliasing distortion, such as for FFT analysis (p. 70).

[ Off or On ]

To suppress high-frequency components, select a low-pass filter within the input module (p. 69).

8939: [ Off, 10Hz, 30Hz, 300Hz or 3kHz ] 8960: [ OFF, 5Hz, 10Hz, 100Hz, 1kHz ]

Sets the reference outpu t level of th e transducer to the specified zero position Execute one hour after turning the power on, with the sens or in the unloaded state.

Set as occasion demands.

See

"Scaling Setting Examples" in "5.4 Converting Input Values (Scaling Function)" in the Instruction Manual

(p. 81).

([One Ch] Page of Channel Setting Screen)

12 3

Example: Measuring frequency

The [Frequency] measurement mode is selected upon system reset.

3.5 Model 8940 F/V Unit Settings

Settings are related to the follo win g mea su rements. One measurement type ca n be set per channel.

• Measure freq uency from the input p ulse corresponding t o the measurement waveform (p. 52)

• Measure frequencies near 50/60 Hz from the input pulse corresponding to the measurement waveform (p. 52)

• Measure rotation rate from the input pulse corresponding to the measurement waveform (p. 52)

• Count of input pulses (p. 54)

• Measure the perc en tage of Hig h level of a single pulse w av eform ( pu ls e dut y)

(p. 55)

• Measure voltage (p. 56)

• Measure current (p. 57)

3.5.1 Measuring Frequency, 50/60 Hz and Rotation Rate

Setting Procedure

Use the CURSOR keys to move among items. Select a setting with the F1 to F8 ke ys .

Step

Select the module No.

Select the channel No .

Setting Item

[Unit ]

[Ch ]

Description Select the number of the input module to set up.

("Channel Configuration" (p. 17)) Select the channel number on the input module.

Confirm the module

Select the measurement mode

Select the measurement range

Select the low-pass filter

[Module]

[Mode]

[Range]

[LPF]

Confirm that the display is set for [F/V].

Select the measurement mode.

[ Frequency, Rotation, 50/60 Hz ]

To suppress high-frequency components, select a low-pass filter within the input module (p. 69).

[ Off, 5Hz, 500Hz, 5kHz or 100kHz ]

3.5 Model 8940 F/V Unit Settings

Select the probe attenuation

Set the threshold level

Set pull-up

Set the Hold function

Set up scaling

[Probe]

[Threshold]

[Pull-Up]

[Hold]

Select according to the cable or probe being used

(p. 78).

[ 1:1, 10:1, 100:1, 1000:1(9322+ 93 25) or 1000:1 (9322 +941 8) ]

Set the threshold value (p. 75).

Enable (set On) th e pull-up resist ance when connecting to an open-collector output signal. Disable it (Off) for normal measurements (p. 74).

[ Off or On ]

Select whether to h old the last measure d v al ue unti l t he nex t frequency or rotation rate is determined (p. 73).

[ On, 10-ms Off or 1-s Off ]

Set as occasion demands.

See

"5.4 Converting Input Values (Scaling Function)" in the

Instruction Manual

Difference between frequency measurement and 50 /60 Hz f reque ncy measurement

The frequency measurement function consists of selecting a range from 50 mHz to 5 kHz and observing changes in frequency. The 50/60 Hz frequen cy measurement function cons ists of setting either 50 or 60 Hz as the zero position, and observing deviations from that frequency.

([One Ch] Page of Channel Setting Screen)

12 3

The [Frequency] measurement mode is selected upon system reset.

3.5 Model 8940 F/V Unit Settings

3.5.2 Pulse Count Measurement

Setting Procedure

Use the CURSOR keys to move among items. Select a setting with the F1 to F8 ke ys .

Step

Setting Item

Description

Select the module No.

Select the channel No .

Confirm the module

Select the measurement mode

Select the measurement range

Select the low-pass filter

Select the probe attenuation

Set the threshold level

[Unit ]

[Ch ]

[Module]

[Mode]

[Range]

[LPF]

[Probe]

[Threshold]

Select the number of the input module to set up. ("Channel Configuration" (p. 17))

Select the channel number on the input module.

Confirm that the display is set for [F/V].

Select [Count].

Select the appropriate measurement range. The setting value is the units per division on the vertical axis. (Units: c = count) The RANGE/POSN knob selects the range (p. 67). Refer to the specifications for available ranges (p. 96).

To suppress hi gh- freq uenc y com ponen ts, select a low- pas s filter within the input module (p. 69).

[ Off, 5Hz, 500Hz, 5kHz or 100kHz ]

Select according to the cable or probe being used

(p. 78).

[ 1:1, 10:1, 100: 1, 1000: 1(9322+ 9325) or 100 0:1(932 2+9418 ) ]

Set the threshold level (p. 75).

Set pull-up

Set up scaling

[Pull-Up]

Enable (set On) the pu ll-up resistanc e when connectin g to an open-collector output sign al. Disab le it (O ff) for normal mea surements (p. 74).

[ Off or On ]

Set as occasion demands.

See

"5.4 Converting Input Values (Scaling Function)" in the

Instruction Manual

3.5 Model 8940 F/V Unit Settings

([One Ch] Page of Channel Setting Screen)

12 3

The [Frequency] measurement mode is selected upon system reset.

Calculation (50 µs)

(dead time)

Waveform Acquisition

Ignored

3.5.3 Pulse Duty Measurement

Setting Procedure

Use the CURSOR keys to move among items. Select a setting with the F1 to F8 keys.

Step

Setting Item

Description

Select the module No.

Select the channel No.

Confirm the module

Select the measurement mode

Select the low-pass filter

Select the probe attenuation

Set the threshold level

Set pull-up

Set up scaling

[Unit ]

[Ch ]

[Module]

[Mode]

[LPF]

[Probe]

[Threshold]

[Pull-Up]

Select the number of the input module to set up. ("Channel Configuration" (p. 17))

Select the channel number on the input module.

Confirm that the display is set for [F/V].

Select [Duty].

To suppress high-frequency components, select a low-pass filter within the input module (p. 69).

[ Off, 5Hz, 500Hz, 5kHz or 100kHz ]

Select according to the cable or probe being used

(p. 78)

[ 1:1, 10:1, 100:1, 1000: 1(9322+9 325) o r 1000 :1(9 322+9418 ) ]

Set the threshold level (p. 75).

Enable (set On) the pull-up resistanc e when connectin g to an open-collector outp ut si gna l. Dis abl e it (Off) for normal measurements

[ Off or On ]

Set as occasion demands.

See

(p. 74).

"5.4 Converting Input Values (Scaling Function)" in the

Instruction Manual

Pulse duty measurement

If a rising puls e (at 2 0 kHz o r above) is appl ied during calcu lation (“ dead time ”), the duty during th e dead time cann ot be measured. D uty is measured f rom the pulse following the dead time.

([One Ch] Page of Channel Setting Screen)

Execute to adjust input signal offset. (p. 79)

12 3

5 6

The [Frequency] measurement mo de is selected upon system rese t.

3.5 Model 8940 F/V Unit Settings

3.5.4 Voltage Measurement

Setting Procedure

Use the CURSOR keys to move among items. Select a setting with the F1 to F8 ke ys .

Step

Setting Item

Description

Select the module No.

Select the channel No .

Confirm the module

Select the measurement mode

Select the measurement range

Select the input coupling method

Select the low-pass filter

Select the probe attenuation

[Unit ]

[Ch ]

[Module]

[Mode]

[Range]

[Coupling]

[LPF]

[Probe]

Select the number of the input module to set up. ("Channel Configuration" (p. 17))

Select the channel number on the input module.

Confirm that the display is set for [F/V].

Select [Voltage].

Select the coupling method for input signals (p. 68).

[ DC, AC or GND ]

To suppress hi gh- freq uenc y com ponen ts, select a low- pas s filter within the input module (p. 69).

[ Off, 5Hz, 500Hz, 5kHz or 100kHz ]

Select according to the cable or probe being used

(p. 78).

[ 1:1, 10:1, 100: 1, 1000: 1(9322+ 9325) or 100 0:1(932 2+9418 ) ]

Set pull-up

Perform zero adjustment

Set up scaling

[Pull-Up]

[

Zero-Adjust

Enable (set On) the pu ll-up resistanc e when connectin g to an open-collector output sign al. Disab le it (O ff) for normal mea surements (p. 74).

[ Off or On ]

]

Perform at least 30 minutes after turning power on

(p. 79).

Set as occasion demands.

See

"5.4 Converting Input Values (Scaling Function)" in the

Instruction Manual

3.5 Model 8940 F/V Unit Settings

Execute to adjust input signal offset. (p. 79)

12 3

6 7

The [Frequency] measurement mode is selected upon system reset.

([One Ch] Page of Channel Setting Screen)

3.5.5 Current Measurement

When using the Mode l 9018-50 and 9132-50 Clamp-On Probe, s elect [Voltage] mode.

See "3.5.4 Voltage Measurement" (p. 56)

Setting Procedure

Use the CURSOR keys to move among items. Select a setting with the F1 to F8 keys.

Step

Setting Item

Description

Select the module No.

Select the channel No.

Confirm the module

Select the measurement mode

Select a sensor

Select the measurement range

Select the input coupling method

[Unit ]

[Ch ]

[Module]

[Mode]

[Sensor]

[Range]

[Coupling]

Select the number of the input module to set up. ("Channel Configuration" (p. 17))

Select the channel number on the input module.

Confirm that the display is set for [F/V].

Select [Current].

Select the clamp to be used.

[ 3273-50, 9270, 9271, 9272LO* 9279, 20A/2V*2, 200A/2V*2, 500A/2V*2 ]

*1 9272HI: 200A-range, 9272LO: 20A-range *2 When connecting a sensor (Hioki Clamp-On Sensor or

AC/DC Current Sensor) with a model name that cannot be selected in this screen, select a conversion ratio. Refer to the instruction manual to determine whether the sensor can be connected to the instrument or not.

Select the coupling method for input signals (p. 68).

[ DC, AC or GND ]

, 9272HI*1, 9277, 9278 or

Select the low-pass filter

Perform zero adjustment

[LPF]

[

Zero-Adjust

• Up to eight channels can be used simultaneously when measuring with the Model 9318 and 9319 Conversion Cables.

• When using a clamp model that is not di splayed in the sensor sel ection list, measure in [Voltage] mode, and apply the scaling function.

See:"5.4 Converting Input Va lu es (Sca lin g Func tio n)" in the Instruction Manual

To suppress high-frequency components, select a low-pass filter within the input module (p. 69).

[ Off, 5Hz, 500Hz, 5kHz or 100kHz ]

]

Perform at least 30 minutes after turning power on

(p. 79).

([One Ch] Page of Channel Setting Screen)

Execute to adjust input signal offset. (p. 79)

12 3

5 6

The [Charge] measurement mode is selected upon system reset.

3.6 Model 8947 Charge Unit Settings

Make settings regarding input channels for measuring voltage or acceleration (Charge and Preamp). One type can be measured per channel.

3.6.1 Voltage Measurement

Setting Procedure

Use the CURSOR keys to move among items. Select a setting with the F1 to F8 ke ys .

Step

Select the module No.

Select the channel No .

Confirm the module

Select the measurement mode

Select the measurement range

Select the input coupling method

Select the low-pass filter

Select the probe attenuation

Setting Item

[Unit ]

[Ch ]

[Module]

[Mode]

[Range]

[Coupling]

[LPF]

[Probe]

Description Select the number of the input module to set up.

("Channel Configuration" (p. 17)) Select the channel number on the input module.

Confirm that the display is set for [Charge].

Select [Voltage].

Select the coupling method for input signals (p. 68).

[ DC, AC or GND ]

To suppress hi gh- freq uenc y com ponen ts, select a low- pas s filter within the input module (p. 69).

[ Off, 5Hz, 500Hz, 5kHz or 100kHz ]

Select according to the cable or probe being used (p. 78).

[ 1:1, 10:1, 100:1 or 1000:1 ]

Set the anti-aliasing filter

Perform zero adjustment

Set up scaling

[AAF]

[

Zero-Adjust

Turn this on to suppress anti-aliasing distortion, such as for FFT analysis (p. 70).

[ Off or On ]

]

Perform at least one hour after turning power on

(p. 79).

Set as occasion demands.

See

"5.4 Converting Input Values (Scaling Function)" in the

Instruction Manual

3.6 Model 8947 Charge Unit Settings

([One Ch] Page of Channel Setting Screen)

12 3

6 7

The [Charge] measurement mode is selected upon system reset.

3.6.2 Acceleration Measurement (Charge, Preamp)

Setting Procedure

Use the CURSOR keys to move among items. Select a setting with the F1 to F8 keys.

Step

Setting Item

Description

Select the module No.

Select the channel No.

Confirm the module

Select the measurement mode

Set sensor sensitivity

Select the measurement range

Select the input coupling method

[Unit ]

[Ch ]

[Module]

[Mode]

[Sensitivity]

[Range]

[Coupling]

Select the number of the input module to set up. ("Channel Configuration" (p. 17))

Select the channel number on the input module.

Confirm that the display is set for [Charge].

Select the measurement mode.

• [Charge]: When using a charge-output acceleration pickup sensor

• [Preamp]: When using an acceleration pick-up sensor equipped with an internal preamp

Set the value per m/ s2 defined for the acceleration sensor to be used

"Sensor Sensitivity Setting Examples" (p. 76)

Select the appropriate measurement range. The setting value is the units per division on the vertical axis. (Units: m/s The RANGE/POSN knob selects the range. Refer to the specifications for available ranges (p. 99).

Select the coupling method for input signals (p. 68).

[ AC or GND ]

(p. 76).

= acceleration)

Select the low-pass filter

Set the anti-aliasing filter

Perform zero adjustment

Set up scaling

[LPF]

[AAF]

[

Zero-Adjust

To suppress high-frequency components, select a low-pass filter within the input module (p. 69).

[ Off, 500Hz or 5kHz ]

Turn this on to suppress anti-aliasing distortion, such as for FFT analysis

[ Off or On ]

]

Perform at least one hour after turning power on

(p. 79).

Set as occasion demands.

See

"To convert [m/s2] units to [G] for disp lay " (p . 76 ) in th is ma nual, "5.4 Converting Input Values (Scaling Function)" in the

Instruction Manual

(p. 70).

5 to 6 seconds

3.6 Model 8947 Charge Unit Settings

Supplement ___________________________________________________

Before connecting sensors and probes

To avoid electric shock or damage to the measurement object, turn the instrument off before connecting a sensor or probe to the BNC jack. When the [Preamp] measurement mode is selected, internal power (15 V @ 2 mA) is applied to the BNC jack when measurement starts.

Range Setting

Auto-ranging cannot be used on channels for which the measurement mode is set to

[Charge] or [Preamp].

For more on auto-ranging, refer to "3.3.5 Automatic Range Setting (Auto-Ranging Function)" in the Instruction Manual.

Measuring Timing

In the following cases, five or six seconds should be allowed for input stabilization:

• Measurement Mode: When switching the mea suremen t rang e betwe en one of th e six h igh- sensiti vity ranges and one of the six low-sensitivity ranges.

• Measurement Mode: After selecting preamp mode and before starting a new measurement

[Charge]

[Preamp]

3.7 Model 8957 High Resolution Unit Settings

([One Ch] Page of Channel Setting Screen)

Execute to adjust input signal offset. (p. 79)

12 3

4 5

3.7 Model 8957 High Resolution Unit Settings

Setting Procedure

Use the CURSOR keys to move among items. Select a setting with the F1 to F8 keys.

Step

Setting Item

Description

Select the module No.

Select the channel No.

Confirm the input module and mea-

surement mode

Select the measurement range

Select the input coupling method

Select the low-pass filter

Select the probe attenuation

Set the anti-aliasing filter

[Unit ]

[Ch ]

[Module] [Mode]

[Range]

[Coupling]

[LPF]

[Probe]

[AAF]

Select the number of the input module to set up. ("Channel Configuration" (p. 17))

Select the channel number on the input module.

Confirm that the display is set for [High Res]. Confirm that the display is set for [Voltage].

Select the coupling method for input signals (p. 68).

[ DC, AC or GND ]

To suppress high-frequency components, select a low-pass filter within the input module (p. 69).

[ Off, 5Hz, 50Hz, 500Hz, 5kHz or 50kHz ]

Select according to the cable or probe being used

(p. 78).

[ 1:1, 10:1, 100:1 or 1000:1 ]

Turn this on to suppress anti-aliasing distortion, such as for FFT analysis (p. 70).

[ Off or On ]

Perform zero adjustment

Set up scaling

[

Zero-Adjust

]

Perform at least 30 minutes after turning power on

(p. 79).

Set as occasion demands.

See

"5.4 Converting Input Values (Scaling Function)" in the

Instruction Manual

([One Ch] Page of Channel Setting Screen)

Execute to adjust input signal offset. (p. 79)

12 3

3.8 Model 8958 16-Ch Scanner Unit Settings

Before Setting

The zero position of the Model 8958 16-Ch Scanner Unit needs to be adjusted in the following cases.

See "Scanner Unit Zero Position Adjustmen t" (p. 29)

• When the Model 8958 16-Ch Scanner Unit has just been installed in the

instrument (a message requesting adjustment appears when the instrument is turned on)

• When the zero position has shifted due to aging or environmental changes

3.8.1 Voltage Measurement

Setting Procedure

Use the CURSOR keys to move among items. Select a setting with the F1 to F8 ke ys .

Step

Select the module No.

Select the channel No .

Confirm the module

Select the measurement mode

Select the measurement range

Set the digital filter

Set up scaling

Setting Item

[Unit ]

[Ch ]

[Module]

[Mode]

[Range]

[Digital F]

Description Select the number of the input module to set up.

("Channel Configuration" (p. 17)) Select the channel number on the input module.

Confirm that the display is set for [Scanner].

Select [Voltage].

Set the digital filter function to be enabled or disabled. Set it to ON to suppress noise components (p. 70).

[ Off, 60Hz, 50Hz or 10Hz ]

Set as occasion demands.

"5.4 Converting Input Values (Scaling Function)" in the

See

Instruction Manual

3.8 Model 8958 16-Ch Scanner Unit Settings

([One Ch] Page of Channel Setting Screen)

12 3

The [Voltage] measurement mode is selected upon system reset.

3.8.2 Temperature Measurement

Setting Procedure

Use the CURSOR keys to move among items. Select a setting with the F1 to F8 keys.

Step

Setting Item

Description

Select the module No.

Select the channel No.

Confirm the module

Select the measurement mode

Select thermocouple

Select the measurement range

Set the digital filter

Set the reference junction compensa-

tion

[Unit ]

[Ch ]

[Module]

[Mode]

[Sensor]

[Range]

[Digital F]

[RJC]

Select the number of the input module to set up. ("Channel Configuration" (p. 17))

Select the channel number on the input module.

Confirm that the display is set for [Scanner].

Select [Temp].

Select the type of thermocouple (p. 71).

[ K, J, E, T, N, R, S, B or W ]

Select the appropriate measurement range. The setting value is the units per division on the vertical axis. The RANGE/POSN knob selects the range (p. 67).

[ 10, 50 or 100°C/div ]

Set the digital filter function to be enabled or disabled. Set it to ON to suppress noise components (p. 70).

[ Off, 60Hz, 50Hz or 10Hz ]

Select whether reference junction compensation should be provided internally

[ Internal or External ]

(p. 71).

Set disconnect detection

Set up scaling

[Burn-Out

]

Select thermocouple broken-wire detection (p. 72). When enabled (On), the waveform trace of a broken wire stays at the top of the screen and the cursor value is displayed as “+OVER” when a broken wire is present.

[ Off or On ]

Set as occasion demands.

See

"5.4 Converting Input Values (Scaling Function)" in the

Instruction Manual

3.8 Model 8958 16-Ch Scanner Unit Settings

• The upper and l ower limits of measurement input depend on the measure-

ment range. Refer to "About Measurement Range, Upper and Lower Input

Limits and the Waveform Display:" (p. 67).

• When the input terminals of the Mod el 8958 16-Ch Scanner Unit are subject

to strong drafts: Loss of thermal eq uilibrium of the input section may result in measurement errors. T o measure in such environments, install the supplied cover or relocate the equipment out of the wind.

• When the ambient temperature changes rapidly:

Loss of thermal equilibrium may result in measurement erro rs. If this occurs, allow about an hour for the equip ment to acclima tize to the new tem perature, then take measurements after thermal equilibrium is achieved.

3.9 Model 8959 DC/RMS Unit Settings

([One Ch] Page of Channel Setting Screen)

Execute to adjust input signal offset. (p. 79)

12 3

5 6

Example: Measuring RMS values

The [DC] measurem ent mode is selected upon system reset.

3.9 Model 8959 DC/RMS Unit Settings

Setting Procedure

Use the CURSOR keys to move among items. Select a setting with the F1 to F8 keys.

Step

Setting Item

Description

Select the module No.

Select the channel No.

Confirm the module

Select the measurement mode

Select the measurement range

Select the input coupling method

Select the low-pass filter

Select the probe attenuation

[Unit ]

[Ch ]

[Module]

[Mode]

[Range]

[Coupling]

[LPF]

[Probe]

Select the number of the input module to set up. ("Channel Configurati on" (p. 17))

Select the channel number on the input module.

Confirm that the display is set for [DC/RMS].

Select the me asurement mode.

• [DC]: Voltage measurement

• [RMS]: RMS measurement Select the voltage per division on the voltage (vertical) axis.

The RANGE/POSN knob selects the range (p. 67). Refer to the specifications for available ranges (p. 105).

Select the coupling method for input signals (p. 68).

[ DC, AC or GND ]

To suppress high-frequency components, select a low-pass filter within the input module (p. 69).

[ Off, 5Hz, 500Hz, 5kHz or 100kHz ]

Select according to the cable or probe being used

(p. 78).

[ 1:1, 10:1, 100:1 or 1000:1 ]

Set the response speed

Perform zero adjustment

Set up scaling

[Response]

[

Zero-Adjust

Select the response speed (p. 75).

[ Fast, Medium or Slow ]

]

Perform at least 30 minutes after turning power on

(p. 79).

Set as occasion demands.

See

"5.4 Converting Input Values (Scaling Function)" in the

Instruction Manual

([One Ch] Page of Channel Setting Screen)

Execute to adjust input signal offset. (p. 79)

12 3

5 6

Example: Measuring RMS values

The [DC] measurem ent mode is selected upon system reset.

3.10 Model 8961 High Voltage Unit Settings

Setting Procedure

Use the CURSOR keys to move among items. Select a setting with the F1 to F8 keys.

Step

Setting Item

Description

Select the module No.

Select the channel No.

Confirm the module

Select the measurement mode

Select the measurement range

Select the input coupling method

Select the low-pass filter

Perform zero adjustment

[Unit ]

[Ch ]

[Module]

[Mode]

[Range]

[Coupling]

[LPF]

[

Zero-Adjust

Select the number of the input module to set up. ("Channel Configuration" (p. 17))

Select the channel number on the input module.

Confirm that the display is set for [High Volt].

Select the measurement mode.

• [DC]: Voltage measurement

• [RMS]: RMS measurement Select the voltage per division on the voltage (vertical) axis.

The RANGE/POSN knob selects the range (p. 67). Refer to the specifications for available ranges (p. 107).

Select the coupling method for input signals (p. 68).

[ DC or GND ]

To suppress high-frequ ency components, select a low-pass filter within the input module (p. 69).

[ Off, 5Hz, 50Hz, 500Hz or 5kHz ]

]

Perform at least 30 minutes after turning power on

(p. 79).

Set up scaling

Set as occasion demands.

See

"5.4 Converting Input Values (Scaling Function)" in the

Instruction Manual

3.11 About Setting Contents

Minimum Resolution

3.11.1 Measurement Range Setting

Select the approp riate measurement range. The setting value is the units per division on the vertical axis. Use the RANGE/POSN k nob to make the setti ng independ ently from the cu rsor position.

Setting Item: [Range]

•Refer to "Chapter 5 Specifications" (p. 87) for the extents of the measureme nt ranges.

• If the range is undetermined, auto-range selection can be enabled. Refer to "3.3.5 Automatic Range Setting (Auto-Ranging Function)" in the

Instruction Manual

• When data has been stored in the instrument’s memory, an asterisk “∗” appears beside the data value’s measurement range.

3.11 About Setting Contents

If the range is changed while measuring, acquired data is deleted and data recording is restarted.

Voltage Axis Range

When variable auto adjustment is enabled [On] ( de faul t s etting) an d the va riabl e function is enabl ed, the varia ble s etting bec omes linked for measure ment ran ge changes. If you do not want the display area of the screen to change, disable variable auto adjustment [Off].

See "13.2.8 Performing Variable Function Auto Adjustment" in the Instruction Manual

Temperature Measurement About Measurement Range, Upper and Lower Input Limits and the Wave-

form Display:

The upper and lower limits of meas urement input depend on the meas urement range. Measurement is no t available outsid e of the temperature range limits in the following tables:

Model 8937 Voltage/Temp Unit

Measurement Range [°C/div ] 10 20 50 100

Upper Limit [°C] 400 800 2000 4000 Lower Limit [°C] -92 -184 -460 -920

Model 8958 16-Ch Scanner Unit

Measurement Range [°C/div] 10 50 100

Upper Limit [°C] 200 1000 2000 Lower Limit [°C] -100 -200 -200

Measurement range: 50°C/div (-460 to 2000°C) When T measuremen t input range exce eded

Measurement range: 20°C/div (-184 to 800°C) Lower limit of measurement range (-184°C) exceeded

Upper limit of measurement input range exceeded

Lower limit of measurement range exceeded

Upper limit of T

measurement input

Lower limit of T

measurement input

Lower limit of measurement input range exceeded

Thermocouple: T Measurement Range

3.11 About Setting Contents

Example: Zero position = 50%, Magnification = ×1, Thermocouple = type T (using Model 8973) (Measurement input range of T = -200 to 400°C

3.11.2 Setting Input Coupling

Select the coupling method for input signals Setting Item: [Coupling]

Selections Description

DC Coupling (Default setting) Select this to acquire both DC and AC components of an input signal.

AC Coupling Select this to eliminate any DC component from an input signal. Use this to measure only the ripple component superimposed on pulsating currents.

The input signal is disconnected. Zero position can be confirmed.

Voltage DC AC GND Temp DC

Frequency, Rotation, 50/60Hz, Count, Duty

Voltage DC AC GND Current

Voltage DC AC GND Charge, Preamp

GND

Available selections depend on the input module and measurement mode.

Input modules Modes Selections 8936 Voltage DC AC GND

8937

8938 FFT DC AC GND

8940

8946 Voltage DC

8947

8959 DC, RMS DC AC GND 8956 Voltage DC AC GND 8957 Voltage DC AC GND 8961 DC, RMS DC

−−

depends on the particular clamp

−

−−

−

AC GND

GND

− GND

3.11.3 Low-Pass Filter (LPF) Settings

To suppress high-frequency components, select a low-pass filter within the input module

Setting Item: [LPF]

Selections Description

Off 5Hz 500Hz 5kHz 100kHz

Available selections depend on the input module and measurement mode.

Input modules Modes Selections [Hz]

The low-pass filter is disabled. (Default setting) Applies a filter with 5-Hz cutoff frequency. Applies a filter with 500-Hz cutoff frequency. Applies a filter with 5-kHz cutoff frequency. Applies a filter with 100-kHz cutoff frequency.

3.11 About Setting Contents

8936 Voltage Off, 5, 500, 5 k, 100 k 8937 * Voltage Off, 5, 500, 5 k, 100 k

Temp Off, 5, 500 8938 Voltage Off, 5, 500, 5 k, 100 k 8939 Strain Off, 10, 30, 300, 3 k 8940 Voltage Off, 5, 500, 5 k, 100 k 8946 Voltage Off, 5, 500, 5 k, 50 k 8947 Voltage Off, 5, 500, 5 k, 100 k

Charge, Preamp Off, 500, 5 k 8956 Voltage Off, 5, 500, 5 k, 1 M 8957 Voltage Off, 5, 50, 500, 5 k, 50 k 8959 DC, RMS Off, 5, 500, 5 k, 100 k 8960 Strain Off, 5, 10, 100, 1 k 8961 DC, RMS Off, 5, 50, 500, 5 k

* When the digital filter is enable d [On], only O ff, 5 Hz and 500 Hz selection s are available .

3.11 About Setting Contents

3.11.4 Anti-Aliasing Filter (AAF) Settings

Enable the anti-al iasing filter to remove ali asing distortio n. The cutoff fr equency is automatically set according to the time axis range setting.

Setting Item: [AAF]

Selections Description

Off The anti-aliasing filter is disabled. (Default setting)

The anti-aliasing filter is enabled.

To perform sampling for analysis without being affected by aliasing distortion

• We recommend using an input module that supports anti-aliasing filtering. (Supporting input module models: 8938, 8947 and 8957)

• Refer to "3.11 FFT Definitions" in the Analysis and Communication Supplement for details of the Aliasing and Anti-aliasing filters.

(When the Recorder func tion or External sam pling is used, th e antialiasing filter (AAF) is not available.)

Printing setting data (List Print)

Settings can be printed as follows: (Example) When enabled: “AAF ON”

3.11.5 Digital Filter (Digital F) Settings

Noise can be removed by applying additional averaging to the measurement data within the input module. With the 8937 Voltage /Temp Unit, digital filtering is avail able only in the measurement ranges from 500 µV to 2 mV/div. The digital filter is not available in other ranges.

Setting Item: [Digital F]

Selections Description

8937

8958

Off

On Off The digital filter function is disabled. (Default setting)

60Hz, 50Hz or 10Hz

The digital filter function is disabled. (Default setting) The digital filter function is enabled.

(Data refresh rate: Approx. 100 µs)

The digital filter function is enabled. The data refresh rate is affected by the filter setting.

See "5.2.10 Model 8958 16-Ch Scanner Unit" (p. 103)

Printing setting data (List Print)

Settings can be printed as follows: Example: Enabled = “Digital F ON"

3.11 About Setting Contents

3.11.6 Thermocouple (Sensor) Type Setting

Set to match the type of thermocouple being used. Setting Item: [Sensor]

8937 Voltage/Temp Unit

Selections

K -200 to 1350°C R 0 to 1700°C J -200 to 1100°C S 0 to 1700°C E -200 to 800°C B 300 to 1800°C T N -200 to 1300°C

Measurement Range

-200 to 400°C

Selections

Measurement Range

8958 16-Ch Scanner Unit

Selections

K -200 to 1350°C R 0 to 1700°C J -200 to 1200°C S 0 to 1700°C E -200 to 1000°C B 400 to 1800°C T -200 to 400°C W 0 to 2000°C N -200 to 1300°C

Measurement Range

Selections

Measurement Range

3.11.7 Reference Junction Compensation Setting

When connecting a thermocouple directly to the input module, select [Internal]. Reference junction comp ensati on is perform ed with in the inp ut modu le. When connecting t hrough a reference j unction device (e .g., a 0°C control tan k), select [External].

Setting Item: [RJC]

Selections Description

Reference junctio n co mpensation is pro vi ded w i thi n the i npu t mod-

Internal

External

ule. (Default setting) (Measurement Accuracy: Th e sum of the ac curacies of th e temperature measurement and the reference junction compensation.)

Reference junction compensation is not provided within the input module. (Measurement Accuracy: The accuracy of temperature measurement only)

3.11 About Setting Contents

3.11.8 Drift Correction Setting

This function period ically co rrects fo r drift of the reference p otential ( about onc e per second) to improve thermal characteristics in thermocouple mode.

Setting Item: [Drift]

Selections Description

Off On

• Data refresh rate is about once per second when drift correction is enabled.

• Drift correction is a vailable only wh ile measuring. It does not affect the Le vel Monitor on the Waveform and Channel Setting screens.

Drift correction is disabled. (Default setting) Drift correction is enabled.

3.11.9 Disconnect (Burn-Out) Detection Setting

A broken thermocoupl e wire c an be d etected during temper ature mea sure ment. Normally when a thermocouple wire breaks, measured values exhibit random instability.

Setting Item: [Burn-Out]

Selections Description

Off

Broken wires are not detected. Broken wires are detected.

When a broken wire is pre sent, t he w aveform trace st ays a t th e top of the screen and the cursor value is displayed as “+OVER”. Wire breakage is detected by sensing a miniscule current flow (about 200 nA) through the thermocouple. If the thermocouple wires are long or composed of a high-resistance material, set

[Burn-Out] to [Off] to avo id me asu rem en t errors.

3.11.10 Hold Setting

Rotation Stops

Hold: On

The previously measured value is retained continuously until the next cycle is determined. Because the next cycle never occurs, the stopping condition is not detected.

Hold: Off

If the cycle is not detected within the specified period (10 ms or 1 s), half of the value of the previous signal is displayed. As a result, the displa yed valu e graduall y approac hes zero, allowing the stopping condition to be estimated.

Rotation Stops

During measurement, the measured frequency value can be retained by the Hold function until the frequency of the next cycle has been determined. Also, if the value i s not ret ained a nd the n ext value canno t be dete rmin ed within a specified period, one half of the last measured value can be displayed.

Setting Item: [Hold]

Selections Description

3.11 About Setting Contents

10-ms Off

1-s Off

The on/off settings of the Hold and Pull-Up function s are not indicated on the Waveform screen. The settings are indicated on the Channel Settings screen.

Retains the measured v alue until the next frequen cy value is determined.

If the next frequency va lue is not de termin ed wit hin 10 m s, the last value is divided in half. (Default setting)

If the next frequency value is no t determin ed within 1 s , the last value is divided in half.

What is the difference between Hold On and Off?

When measuring frequency and rotation rate, results are displayed only after the value of one cycle has been determined. When Hold is O n, the previ ously meas ured va lue i s reta ined, and w ith Ho ld O ff, one half of the previous value is displayed if a new value cannot be determined within the specified period.

Example: Measuring the phenome na of stop pin g a rotating body

Actual Phenomena

Frequency drops from a certain cycle to 0 Hz, and then increases from that point.

Hold: 10-ms Off

At frequencies below 100 Hz, the displayed value is successively halved to 0 Hz. However, until the frequency reaches 100 Hz again, the halved signal is now added.

Hold: On

The previous value is retained until the 0-Hz event.

Hold: 1-s Off

At frequencies below 1 Hz, the displayed value is successively halved to 0 Hz. However, until the frequency reaches 1 Hz again, the halved signal is now added.

200

100

[Hz]

3.11 About Setting Contents

Example: Measuring frequency dropping to 0 Hz, and then increasing

3.11.11 Pull-Up Setting

The pull-up resistance function is used when connecting to an open-collector output signal. The input terminal is pulled up to +5 V. Set Pull-Up to Off for normal measurements.

Setting Item: [Pull-Up]

Selections Description

Off Pull-up resistance is disable (Off).

Pull-up resistanc e is ena bled. (for c onnecti on to open -collecto r output)

3.11.12 Threshold Setting

[V]

-5

Threshold

Threshold Setting Example

Sets threshold value. Measures when the waveform crosses a preset threshold. Setting Item: [Threshold]

Selections Description

3.11 About Setting Contents

↑↑ ↑ ↓ ↓↓

Values can also be entered by numeric keypad.

See "3.3.3 Entering Text and Numbers" in the Instruction Manual

Measurement results may differ according to the threshold setting. To obtain the correct measurement results, set the threshold level to suit the input waveform.

Increases value by large steps. Increases value by small steps. Decreases value by small steps. Decreases value by large steps.

3.11.13 Response (Timing) Setting

Response can be set to three speeds: Fast, Medium and Slow. Normally set to [Fast], this can b e c han ged to [Medium] or [Slow] to sta bil iz e t he display when measuring low frequencies, or when severe fluctuations are present.

Setting Item: [Response]

Selections Description

Fast Medium Slow

(The response time of the 8961 High Voltage Unit is fixed at about one second.)

Sets the response time to about 100 ms. Sets the response time to about 800 ms. Sets the response time to about 5 s.

3.11 About Setting Contents

3.11.14 Sensor Sensitivity Setting

Sets the value per m/s2 defined for the acceleration sensor to be used.

Setting Item: [Sensitivity]

Setting Range : 0.1 to 10 (pC/(m/s

When using a sensor with specified value per G:

See Example 2 of the "Sensor Sensitivity Setting Examples" (p. 76)

To use a sensor outside of the setting range:

See "To Use a Sensor Outside of the Setting Range" (p. 77)

The measurement r ange can be affected by th e senso r s ens it iv ity. So sensor sensitivit y sh o ul d be se t be fo r e se tt in g th e measurement ra ng e.

Sensor Sensitivity Setting Examples

Setting Example 1:

When using a sensor with sensitivity specified in units of m/s

If the specified sensor sensitivity is 1.08 pC/(m/s2) Sensor sensitivity setting value: 1.08

Setting Example 2:

When using a sensor with sensitivity specified in units of G

An acceleration sensor with sensitivity specified in units of G can be set by dividing the specified sensitivity value by 9.8 (m/s If the specified sensor sensitivity is 64.0 (pC/G): 64.0 / 9.8 = 6.53 (pC/(m/s Sensor sensitivity setting value: 6.53

)) [Charge], 0.1 to 10 (mV/(m/s2) [Preamp]

))

To convert [m/s2] units to [G] for display

This instr u men t m e as ur es ch ar ge va lu e i n un it s o f m/ s be used to convert to charge value in units of G.

See "5.4 Converting Input Values (Scaling Function)" in the Instruction Ma nua l

Set up scaling as follows.

• Conversion ratio setting [Ratio]

Conversion ratio: 1/9.8 = 0.1020E+00 Offset: 0.0000E+00 Units: G

• Two-point setting [2-Point]

Entry 1: 9.8000E+00 Physical val ue 1: 1.0000E+00 Entry 2: 0.0000E+00 Physical val ue 2: 0.0000E+00 Units: G

. The scaling function can

To Use a Sensor Outside of the Setting Range

The scaling function can be employed to use a sensor outside of the setting range.

1 On the Channel S ettings screen, select the chann el on whi ch to use th e sensor

outside of the setting range.

2 Move the cursor to [Sensitivity] to set the sensor sensitivity.

Enter a multiplier val ue that wil l produc e a settable value ( 0.1 to 10) plied by the actual sensitivity of the sensor.

3 Move the cursor to [Scaling], and set it to [On]. 4 Set the conversion ratio to the sensitivity multiplier value.

3.11 About Setting Contents

when multi-

Setting Example 1: If the specified sensor sensitivity is 23.4 pC/(m/s Set 1/2.34 as the sensor sensiti vity multiplier, and 10 (pc/m/s

sensitivity. Scaling is set as follows to display measured values multiplied by 1/2.34.

• Conversion ratio setting [Ratio]

Conversion ratio: 10/23.4 = 0.4274E+00 Offset: 0.0000E+00 Units: m/s

• Two-point setting [2-Point]

Input 1: 2.3400E+01 Scale 1: 1.0000E+01 Input 2: 0.0000E+00 Scale 2: 0.0000E+00 Units: m/s

Setting Example 2: If the specified sensor sensitivity is 0.05 pC/(m/s

Set the sensor sensitiv ity multiplier to 2, an d the sensor sens itivity to 0.1 (pc/m/

)).

Scaling is set as follows to display measured values multiplied by 2.

)

)) as the sensor

• Conversion ratio setting [Ratio]

Conversion ratio: 0.1/0.05 = 2.0000E+00 Offset: 0.0000E+00 Units: m/s

• Two-point setting [2-Point]

Input 1: 0.0500E+00 Scale 1: 0.1000E+00 Input 2: 0.0000E+00 Scale 2: 0.0000E+00 Units: m/s

3.11 About Setting Contents

3.11.15 Probe Attenuation Selection

Probe attenuation can be selec ted when measuring using a connection cable, differential probe or attenuating probe. (Only for voltage measurement)

By matching the i nput channel probe setting to the a ttenuation ratio of a probe connected to an analog input module, the voltage axis range is automatically converted for direct reading of numerical values. Each channel should be set to match the attenuation ratio of its input probe.

Setting Item: [Probe]

Selections Description

1:1

10:1

100:1

1000:1

Select this setting when measuring with the Model L9197. 9197, L9198 or L9217 cable connected to the input module.

Select this setting when measuring with the Mo del 9665 10:1 Probe connected to the input module.

Select this setting when measuring with the Model 9666 100:1 Probe connected to the input module.

Select this setting when using the 9322 Differential Probe.

When using the Model 8940 F/V Unit with the 9322 Differential Probe:

9322+9325

9322+9418

When supplying power from the Model 9687 Probe Power Unit, either of the above settings can be selected. The factory default and system reset default setting is 1:1.

Some probes cannot be used with certain input modules.

See "1.3 List of Input Modules, Cables, Probes and Clamp Combinations" (p. 13)

Select this setting when using the Model 9325 Power Cord to connect the 9322 Differential Probe.

Select this setting when using the Model 9418-15 AC Adapter to connect the 9322 Differential Probe.

3.11.16 Bridge Voltage Setting

Set to suit the sensor to be used. Setting Item: [Bridge]

Selections Description

2V Se ts the brid ge voltage to 2 V (Bridge resistance = 120 Ω to 1 kΩ) 5V Se ts the brid ge voltage to 5 V (Bridge resistance = 350 Ω to 1 kΩ) 10V Sets the bridge voltage to 10 V (Bridge resistance = 350 Ω to 1 kΩ)

This setting should not exceed the allowable applied voltage for the strain gauge type converter to be used. Other wise, converter specifica tions will not be satisfied, and correct measurements will not be possible.

3.11.17 Executing Zero Adjustment

The input module can apply an internal offset to set the reference potential of the instrument to zero volts.

Before executing zero adjustment

• Turn power on and wait 30 minutes to allow the internal temperature of the input module to stabilize. (Some input modules may require one hour warm-up.)

• Zero adjustment cannot be performed while measuring.

• Key operations are not accepted while zero adjustment is executing.

To execute zero adjustment

Move the cursor to the [Zero-Adjust] button, and select F1 [Execute]. Zero adjustment can be performed from the CH SET dialog on the Wave form screen.

Zero adjustment is not applicable to the following modules:

• The [Temp] mode of the Model 8937 Voltage/Temp Unit

• Model 8939 Strain Unit

• Modes other than [Voltage] and [Current] of the Model 8940 F/V Unit

• Model 8958 16-Ch Scanner Unit

3.11 About Setting Contents

In the following cases, zero adjustment should be executed again.

• After an input module has been removed or inserted

• After power has been turned off and on

• After comp lete reinitialization

• When ambient temperature has changed significantly The zero position may have drifted.

• When measurement mode is changed to the following mode:

・8959 DC/RMS Unit [DC] [RMS] ・8961 High Voltage Unit [DC] [RMS] ・8940 F/V Unit [Voltage] [Current] ・8947 Charge Unit [Voltage] [Charge]

When using the Model 8958 16-Ch Scanner Unit, zero position adjustment of the module from the System screen may be needed.

See "Scanner Unit Zero Position Adjustment" (p. 29)

3.11.18 Executing Offset Cancellation

The input value ca n be forc ed to dis pl ay as ze ro vo lts . Input signal bias, such a s sensor emf, ca n be adjusted to display as zero volt s. This function applies to voltage and current measurement.

See " What is the difference between Offset Cancellation and Zero Adjustment?" (p. 80)

Before executing offset cancellation

Connect the probe or clam p to the measur ement object and app ly the input s ignal that is supposed to measure zero volts.

See "About input voltage during offset cancellation" (p. 80)

When also using scaling, execute offset cancellation before setting the scaling.

To execute offset cancellation

Move the cursor to the [Offset Cancel] button, and select F1 [Execute]. An asterisk "∗" appears on the [Offset Cancel] button when offset canc ellat ion i s active. To revert to the offset value prior to executing offset cancellation, select F2

[Reset].

When input voltage is constant When input voltage is fluctuating

Offset voltage +V

is set to display as

zero regardless of execution time.

The offset voltage set to display as zero depends on the timing of offset cancellation execution.

Offset cancellation referenc e potential is +V.

Waveform after executing offset cancellation

Input Signal Waveform

3.11 About Setting Contents

After executing offset cancellation, the offset value will be calculated aut omatically if the rang e is changed. When a precise offset value is required, execu te the offset cancellation again.

Offset cancellation cannot be executed in the following cases:

• When measuring other than voltage or current

• When the input voltage is more than ±10 divisions from zero

About input voltage during offset cancellation

The maximum input voltage and maximum rated voltage to ground are unaffected by offset cancellation of an input voltage to zero volts. Therefore, careful attention is necessary during measurement.

A constant input voltage is required to execute offset cancellation. If the input voltage is fluctuating, the offset to zero volts depends on the timing of offset cancellation execution.

Offset cancellation

Offset cancellation is not r eset even when power is turned o ff. It is reset when the input module configuration is changed (after an input module has been inserted or removed).

If “Warning: Offset Cancel failed.” appears

This appears when executing offset cancellation if the input voltage is more than ±10 divisions from zero volts.

To avoid the warning, set the input signal within ±10 divisions of zero volts.

What is the difference between Offset Cancellation and Zero Adjustment?

Offset cancellation a djusts for input signal bia s if there is a potential d ifference between the referenc e potential of the measurement obj ect and the reference potential (0 V) of this instr ument , so that th e referen ce pote ntial o f the meas urement object appears as zero volts.

Zero adjustment sets the input m odule’s intern al bias so the re ference potent ial of the instrument is zero volts.

3.11.19 Executing Auto-Balance

Auto-balance sets the reference output level of a transducer to the specified zero position. It is applicable only to a strain module.

Before executing auto-balance

• Turn power on and wait 1 hour to allow the internal temper ature of the input module to stabilize.

• With the sensor conn ected to the input module, execute auto- balance under stable input conditions.

• Auto-balance cannot execute during measurement.

• Key operations are not accepted while auto-balance is executing.

To execute auto-balance

Move the cursor to the [Auto-Balance] button, and selec t F1 [Execute]. Auto-balance can be performed from the CH SET dialog on the Waveform screen (when the unit and channel numbers of the strain module is selected).

3.11 About Setting Contents

In the following cases, auto-balance should be executed again.

• After changing the measurement range

• After an input module has been removed or inserted

• After the strain gauge transducer has been replaced

• After power has been turned off and on

• After performing a system reset

• When ambient temper ature has changed si gnificantly (the ze ro position may drift)

If “Warning: Auto balance failed.” appears

The channel on which auto-balance failed is displayed. Verify the following, and execute again:

• Is the sensor in a disc harged sta te? (Make sure tha t it is not bein g subje ct to vibration, etc.)

• Is the sensor connected correctly?

3.11 About Setting Contents

4.1 Operation Overview

Logic Input Settings Chapter 4

After turning power on, set the measurement criteria before measuring. This chapter describes the settings related to logic inputs. Refer to "7.3 Displaying L ogic Waveforms" in the In struction Manual for setti ng details. Measurement status and trigger settings are the same as for analog inputs. Refer to the related chapters in the Instruction Manual.

4.1 Operation Overview

(Select the Function)

Select the measurement status and

channels

Set up input channels

Set trigger criteria

Waveform display settings

Start Measurement

To record simultaneously with an analog signal, select a function that suits the analog input. When recording only logic signals, the function can be set freely.

(For Memory Function)

[Use Ch] page on Status Settings screen

Enable (set to On) the logic channels to be used.

See "4.2.1 Selecting Channels to Use" in the Instruction Manual

[Logic] page on Channel Settings screen

Select whether to enable (On) or disable (Off) the input waveform for each logic channel prob e.

(Default setting: All Off) Select waveform colors as desired.

See "7.3 Displaying Logic Waveforms" in the Instruction Manual

[Logic] page on Trigger Settings screen

To apply a trigger event for measurements, set the logic trigger for each channel.

See "6.8 Triggering by Logic Signals (Logic Trigger)" in "Chapter 6 Trigger

Settings" in the Instruction Manual

[Logic] page on Sheet Settings screen

Select the channels to appear on the wave form disp la y. (Default setting: All On) Set the waveform display position and height for each channel as needed.

See "7.2 Setting the Screen Layout of the Waveform Screen (Sheet Set-

tings Screen)" and "7.3 Dis pla ying Logic Wav efo rms" in the Instruction Manual

Display Settings Screen

Press the SET key.

The Settings screen appears. Function setting is not needed.

Selecting channels to use (when displayed with the memory function)

Status Settings Screen

Logic Channel A to D

1 Press the SUB MENU keys to select the [Status]

menu item.

2 Press the SHEET/PAGE keys to select the [Use Ch]

page.

To record simultaneously with analog input:

See "4.2.1 Selecting Channels to Use" in the Instruction

Manual

3 Use the CURSOR keys to move the cursor to the Set-

ting column of the logic channel, and press the F2

[On] key.

LOGIC Receptacles

CH D CH C CH B CH A

Logic Channels

(Default setting: depends on the settings of the channels to be used)

4.2 Setting Procedure

Select the time axis range and recording length

Status Setting Screen (with memory function)

1 Press the SUB MENU keys to select the [Status]

menu item.

2 (When using the memory function)

Press the

SHEET/PAGE keys to select the [Basic]

page.

3 (To record only logic inputs)

Use the CURSOR keys to move the cursor to [Time

base], and press an F key to select the time per divi-

sion for the horizontal axis. (When the Timebase 2 is enabled [On], and only logic

inputs are assigned)

Set the sampling rate.

4 Use the CURSOR keys to move the cursor to [Shot]

(Recording Length), an d press an F ke y to select the number of divisions for the recording time.

About measurement configuration (timebase, recording length, etc.)

See "Chapter 4 Measurement Configuration Settings" in

the Instruction Manual

Select the input channels

Channel Settings Screen

Probes

Logic Channels

1 Press the SUB MENU keys to select the [Channel]

menu item.

2 Press the SHEET/PAGE keys to sele ct the [Logic]

page.

The [Logic] page of the Channel Setting screen appears.

3 Use the CURSOR keys to move the cu rsor to the

Setting column for each probe (1 to 4) of the logic channel, and press the F2 [On] key.

(On = display waveform, Off = do not display waveform)

To change a wavefo rm’s color, move the curso r to the waveform display color setting column and select the color with the F1 or F2 key.

See "7.3.1 Setting the Waveform Display" in the

Instruction Manual

If you want to e nte r c omme nts f or ind iv idu al channels: Select the [Comment] page.

See "5.2 Adding Comments" in the

Instruction Manual

(Default setting: [Off])

Waveform Display On/Off

Waveform Display Color

4.2 Setting Procedure

Set the trigger conditions (if applying a trigger)

Trigger Settings Screen

1 Press the SUB MENU keys to select the [Trigger]

menu item.

2 Press the SHEET/PAGE keys to select the [Logic]

page.

The [Logic] p age o f the Trigger Settings scr een appears.

3 Use the CURSOR keys to move to each channel

to be triggered, and set each as needed.

See "6.8 Trigg erin g by Logic Sign als ( Logic Trigger)" in

the Instruction Manual

4 Set triggering as occasion demands.

See "Chapter 6 Trigger Settings" in the Instruction

Manual

Logic Channels

Set the trigger pattern for each probe

Select AND/OR trigger conditions.

Set the trigger filter width. Prevents noise from causing false triggers.

(Default setting: Logic trigger [Off])

Set the trigger detection method.

Set the waveform display method (as occasion demands)

Sheet Settings Screen

1 Press the SUB MENU keys to select the [Sheet]

menu.

2 Press the SHEET/PAGE keys to select the [Logic]

page.

The [Logic] page of the Sheet Settings screen appears.

3 Use the CURSOR keys to move to a logic channel

to be displayed , an d pr es s the F keys to select t he setting contents for each item.

See "7.3.2 Setting the Display Position" and "7.3.3 Set-

ting the Display Height" in the Instruction Ma nua l

Setting other display sheets

See "Chapter 7 Wa ve form Displ ay Setti ng s" in the

Instruction Manual

(Default setting: All logic channels displayed [On])

Set storage and printing as occasion demands, then start measuring.

Logic Channels

Set display of each channel on or off.

Waveform display positions can be modified.

Display height can be modified.

4.2 Setting Procedure

5.1 Logic Input Section

Digital input Threshold value

Contact input Detecting resistance value

1.4 V range 1.4 V±0.3 V more than 1.5 kΩ less than 500Ω

opened (Output L) shorted (Output H)

2.5 V range 2.5 V±0.4 V more than 3.5 kΩ less than 1.5 kΩ

opened (Output L) shorted (Output H)

4.0 V range 4.0 V±0.5 V more than 25 kΩ less than 8 kΩ

opened (Output L) shorted (Output H)

Specifications Chapter 5

Refer to "Safety Informati on" for the “Measurement Category” in the Quick Start Manual.

5.1 Logic Input Section

5.1.1 Model 9327 Logic Probe

Temperature and humidity range for guaranteed accuracy Period of guaranteed accuracy

The number of input channels

Input type Digital input / Contact input

Input resistance 1 MΩ±5% (Digital input: 0 to +5 V)

Pull-up resistance 2 kΩ (Contact inputs: internally connected through pull-up resistance to +5 V) Detecting level

Response pulse width 100 ns or more Maximum input voltage 0 to +50 VDC Operating temperature and

humidity ranges Storage temperature and

humidity ranges Operating environment Indoors, Pollution degree 2, Altitude up to 2,000 m (6,562-ft.) Dimensions Approx. 62W x 94H x 20D mm (2.44"W x 3.70"H x 0.79"D) (sans protrusions) Connector cable length Approx. 1500 mm (59") Probe tip cable length Approx. 300 mm (11.8") Mass Approx. 150 g (5.3 oz.) (including connector cable, excluding input leads) Accessories IC clip leads, Alligator clip leads, Carrying case, Instruction Manual

23 ±5°C(73±9°F), 35 to 80% RH

1 year

4 channels (Common ground between chassis and between channels)

Input type can be selected for each channels. Open collector outputs can be directly measured using contact inputs.

Ω or more (Digital input: +5 to +50 V)

500 k

0 to 40°C (32 to 104°F), 80%RH or less (non-condensating)

-10 to 50°C (14 to 122°F), 90%RH or less (non-condensating)

5.1 Logic Input Section

5.1.2 Model MR9321-01 Logic Probe

Temperature and humidity range for guaranteed accuracy

Period of guaranteed accuracy

The number of input channels

Input voltage range LOW HIGH Input resistance More than 30 kΩ More than 100 kΩ Detecting level

(Output: L) (Output: H)

Response time

(Rising) ↑ (Falling) ↓

Maximum input voltage 150 V rms 250 V rms Maximum rated voltage to

earth Dielectric strength 2.224 kVAC for 15 s (between each input channel and chass is, and between inp ut chan-

Insulation resistance At least 100 MΩ at 500 V DC (between each input channel and chassis, and between

Operating temperature and humidity ranges

Storage temperature and humidity ranges

Operating environment Indoors, Pollution degree 2, Altitude up to 2,000 m (6,562-ft.) Dimensions Approx. 62W x 128H x 20D mm (2.44"W x 5.04"H x 0.79"D) (sans protrusions) Connector cable length Approx. 1500 mm (59") Probe tip cable length Approx. 1200 mm (47") Mass Approx. 320 g (11.3 oz.) Accessories Carrying case, Instruction Manual

23 ±5°C(73±9°F), 35 to 80% RH

1 year 4 channels (Isolated from chassis and between channels)

0 to 10 VAC ±(0 to 15) VDC 60 to 150 VAC ±(20 to 150) VDC

Less than 1 ms Less than 3 ms at 100 V DC

250 V rms

nels)

input channels) 0 to 40°C (32 to 104°F), 80%RH or less (non-condensating)

-10 to 50°C (14 to 122°F), 90%RH or less (non-condensating)

0 to 30 VAC ±(0 to 43) VDC 170 to 250 VAC ±(70 to 250) VDC

Less than 1 ms Less than 3 ms at 200 V DC

• Absolute values are detected, so either polarity DC may be input. AC voltage is evaluated as a 50/60-Hz standard sine wave.

• On/off judgment of the input signal is performed within the above detection range. On/off judgment of input signals cannot be performed correctly with input voltage between L and H detection levels.

5.1.3 Model 9320-01 Logic Probe

Digital input Threshold value

Contact input Detecting resistance val ue

1.4 V range 1.4 V±0.3 V more than 1.5 kΩ less than 500Ω

opened (Output L) shorted (Output H)

2.5 V range 2.5 V±0.4 V more than 3.5 kΩ less than 1.5 kΩ

opened (Output L) shorted (Output H)

4.0 V range 4.0 V±0.5 V more than 25 kΩ less than 8 kΩ

opened (Output L) shorted (Output H)

5.1 Logic Input Section

Temperature and humidity range for guaranteed accuracy Period of guaranteed accuracy

The number of input channels

Input type Digital input / Contact input

Input resistance Digital input: 1 MΩ±5% (0 to +5 V), 500 kΩ or more (+5 to +50 V)

Detecting level

Response pulse width 500 ns or more Maximum input voltage 0 to +50 VDC Operating temperature and

humidity ranges Storage temperature and

23 ±5°C(73±9°F), 35 to 80% RH

1 year

4 channels (Common ground between chassis and between channels)

Input type can be selected for each channel. Open collector outputs can be directly measured using contact inputs.

Contact inputs: Approx. 2 k tance)

0 to 40°C (32 to 104°F), 80%RH or less (non-condensating)

-10 to 50°C (14 to 122°F), 90%RH or less (non-condensating)

Ω (input terminals are c onn ec ted to +5 V th roug h 2 -kΩ resis-

Measurement Error

Es 1

Rin

Rs Rin+

-----------------------

–

[V]

Es: signal voltage Rs: signal source impedance Rin: input impedance

5.2 Analog Input Section

Input module specifications are described here.

Measurement error caused by signal source impedance

• Errors occur when th e signal source impedance is greater than the i nput impedance of the module.

• The input impedance of the Model 8936 Analog Unit is 1 MΩ. Errors of about 0.1% occur when the signal source impedance is 1 kΩ.

5.2.1 Model 8936 Analog Unit

Temperature and humidity range for guaranteed accuracy

Period of guaranteed accuracy

Measurement ranges 5 m, 10 m, 20 m, 50 m, 100 m, 200 m, 500 m, 1, 2, 5, 10, 20 V/div DC amplitude accuracy ±0.4%f.s. Zero position accuracy ±0.1%f.s. (after zero adjustment) Temperature charact eristic Gain: ±0.025%f.s./°C

Frequency characteristic DC coupling: DC to 400 kHz ±3 dB

Noise 450 μV p-p typ., 750 μV p-p max.

Common mode rejection ratio

Low-pass filter OFF, 5±50%, 500±50%, 5k±50%, 100k±50% (Hz) -3 dB Input type Unbalanced (input isolated from output) Input coupling DC, GND, AC Input resistance 1 MΩ±1% Input capacitance 30 pF±10 pF (at 100 kHz) A/D resolution 12 bits Voltage axis resolution 80 points/div (with 1X magnification) Maximum sampling rate 1 MS/s (sampling period: 1 μs) Input terminals Insulated BNC terminal Maximum input voltage 400 VDC Maximum rated voltage to

earth Operating temperature and

humidity ranges Operating environment Same as the host Memory HiCorder Storage temperature and

humidity ranges Effect of radiated radio-

frequency electromagnetic field

23 ±5°C(73±9°F), 35 to 80% RH (when zero adjustment is executed 30 minutes after power on)

1 year

Zero position: ±0.02%f.s./°C (after zero adjustment)

AC coupling: 7 Hz to 400 kHz ±3 dB (low cut-off frequency: 7 Hz±20%)

(sensitivity range, with input shorted) (S/N 2004-041018235 and later) 80 dB minimum (at 50/60 Hz and with signal source resistance 100 Ω maximum)

370 VAC/DC (between each input channel and chassis, and between input channels), Measurement category II (anticipated transient overvoltage: 4000 V)

Same as the host Memory HiCorder

-10 to 50°C (14 to 122°F), 80% RH or less (non-condensating)

±2%f.s. at 3 V/m max.

5.2 Analog Input Section

Effect of conducted radiofrequency electromagnetic field

Dielectric strength 3.7 kVAC for 1 minute (between input m odu le an d ch as si s, an d between input modules) Dimensions Approx. 170W x 20H x 148.5D mm (6.69”W x 0.79”H x 5.85”D) (sans protrusions) Mass Approx. 290 g (10.2 oz.) Applicable Standards

Safety EMC

±40%f.s. at 3 V max. (100 mV/div with 1 V DC input)

EN 61010 EN 61326 Class A

−

3+1−

5.2 Analog Input Section

5.2.2 Model 8937 Voltage/Temp Unit

General specifications

Temperature and humidity range for guaranteed accuracy

Period of guaranteed accuracy

Common mode rejection ratio

Input type Unbalanced (input isolated from output) A/D resolution 12 bits Maximum sampling rate 1MS/s (However, update rate differs with temperature input.) Maximum input voltage 30 V rms or 60 VDC (voltage and temperature inputs) Maximum rated voltage to

earth Operating temperature and

humidity ranges Operating environment Same as the host Memory HiCorder Storage temperature and

humidity ranges Effect of radiated radio-

frequency electromagnetic field

Effect of conducted radiofrequency electromagnetic field

Dimensions Approx. 170W x 20H x 148.5D mm (6.69”W x 0.79”H x 5.85”D) (sans protrusions) Mass Approx. 300 g (10.6 oz.) Applicable Standards

Safety EMC

23 ±5°C(73±9°F), 35 to 80% RH (when zero adjustment is executed 1 hour after power on)

1 year 80 dB min. (at 50/60 Hz and with signal source resistance 100 Ω max.)

30 V rms or 60 VDC (voltage and temperature inputs) Anticipated transient overvoltage: 330 V

Same as the host Memory HiCorder

-10 to 50°C (14 to 122°F), 80% RH or less (non-condensating)

±2% f.s. at 3 V/m (in 5-mV/div range)

±5% f.s. at 3 V (100 mV/div with 1 V DC input)

EN 61010 EN 61326 Class A

Voltage input

Measurement ranges 500 μ, 1 m, 2 m, 5 m, 10 m, 20 m, 50 m, 100 m, 200 m, 500 m, 1, 2 V/div DC amplitude accuracy ±0.4%f.s. Zero position accuracy ±0.15%f.s. (after zero adjustment) Temperature charact eristic Gain: ±0.02%f.s./°C, Zero position: ±0.03%f.s./°C Frequency characteristic DC to 400 kHz dB (in 500 μV to 2 V/div range)

With digital filter ON: DC to 3 kHz dB (Data update rate: 100 μs±20% (in 500 μV to 2 mV/div range))

Noise 75 μVp-p typ.,120 μVp-p max. with digital filter OFF (in 500 μV/div range)

20 μVp-p typ., 30 μVp-p max. with digital filter ON (in 500 μV/div range) (S/N 2004-041135258 and later)

Input terminals BNC terminal Input resistance 1 MΩ±1% Input capacitance 50 pF±20 pF (at 100 kHz) Input coupling DC, GND, AC Low-pass filter OFF, 5±50%, 500±50%, 5k±50%, 100k±50% (Hz) -3 dB

Hioki 8860-50, 8861-50, 8860-51, 8861-51 Input Module Guide

Specifications and Main Features

Frequently Asked Questions

User Manual

Introduction

Structure of this Document

1.1 Product Overview

1.2 Input Module Usage List

1.3 List of Input Modules, Cables, Probes and Clamp Combinations

2.1 Installing Input Modules (Adding or Replacing)

2.2 Connecting the Cables

2.2.1 Connection Preparations

2.2.2 Connecting to an Analog Unit (Models 8936, 8938, 8946, 8956 and 8957)

2.2.3 Connecting to the Model 8937 Voltage/Temp Unit

2.2.4 Connecting to a Strain Unit (Mode ls 89 39 and 8960)

2.2.5 Connecting to the Model 8940 F/V Unit

2.2.6 Connecting to the Model 8947 Charge Unit

2.2.7 Connecting to the Model 8958 16-Ch Scanner Unit

2.2.8 Connecting to the Model 8959 DC/RMS Unit

2.2.9 Connecting to the Model 8961 High Voltage Unit

2.3 Connecting Clamps

2.4 Connecting a Differential Probe

2.5 Connecting Attenuating Probes

2.6 Connecting Logic Probes

2.7 Supplying power from the Model 9687 Probe Power Unit

3.1 Analog Unit Settings (Models 8936, 8946 and 8956)

3.2 Model 8937 Voltage and Temperature Unit Settings

3.2.1 Voltage Measurement

3.2.2 Temperature Measurement

3.3 Model 8938 FFT Analog Unit Settings

3.4 Strain Unit Settings (Models 8939 and 8960)

3.5 Model 8940 F/V Unit Settings

3.5.1 Measuring Frequency, 50/60 Hz and Rotation Rate

3.5.2 Pulse Count Measurement

3.5.3 Pulse Duty Measurement

3.5.4 Voltage Measurement

3.5.5 Current Measurement

3.6 Model 8947 Charge Unit Settings

3.6.1 Voltage Measurement

3.6.2 Acceleration Measurement (Charge, Preamp)

3.7 Model 8957 High Resolution Unit Settings

3.8 Model 8958 16-Ch Scanner Unit Settings

3.8.1 Voltage Measurement

3.8.2 Temperature Measurement

3.9 Model 8959 DC/RMS Unit Settings

3.10 Model 8961 High Voltage Unit Settings

3.11.1 Measurement Range Setting

3.11 About Setting Contents

3.11.2 Setting Input Coupling

3.11.3 Low-Pass Filter (LPF) Settings

3.11.4 Anti-Aliasing Filter (AAF) Settings

3.11.5 Digital Filter (Digital F) Settings

3.11.6 Thermocouple (Sensor) Type Setting

3.11.7 Reference Junction Compensation Setting

3.11.8 Drift Correction Setting

3.11.9 Disconnect (Burn-Out) Detection Setting

3.11.10 Hold Setting

3.11.11 Pull-Up Setting

3.11.12 Threshold Setting

3.11.13 Response (Timing) Setting

3.11.14 Sensor Sensitivity Setting

3.11.15 Probe Attenuation Selection

3.11.16 Bridge Voltage Setting

3.11.17 Executing Zero Adjustment

3.11.18 Executing Offset Cancellation

3.11.19 Executing Auto-Balance

4.1 Operation Overview

4.2 Setting Procedure

5.1 Logic Input Section

5.1.1 Model 9327 Logic Probe

5.1.2 Model MR9321-01 Logic Probe

5.1.3 Model 9320-01 Logic Probe

5.2 Analog Input Section

5.2.1 Model 8936 Analog Unit

5.2.2 Model 8937 Voltage/Temp Unit