Hioki 8835-01 User manual

MEMORY HiCORDER
INSTRUCTION MANUAL
8835-01

Contents
Introduction i
Inspection i
Safety Notes iii
Notes on Use v
Chapter Summary ix
Chapter 1 Product Overview 1
1.1 Major Features 1
1.2 Basic and Advanced Versions 4
1.2.1 Additional Features 4
1.3 Identification of Controls and Indicators 6
Chapter 2 Installation and Preparation 11
2.1 Installation of the Unit 12
2.2 Power Supply and Ground Connection 14
2.3 Power On/Off 18
2.4 Probe Connection 19
2.4.1 8936 ANALOG UNIT, 8938 FFT ANALOG UNIT and
8946 4 ch ANALOG UNIT 19
2.4.2 8937 VOLTAGE/TEMP UNIT 20
2.4.3 8939 STRAIN UNIT 22
2.4.4 8940 F/V UNIT 23
2.4.5 8947 CHARGE UNIT 25
2.5 Logic Probe Connection 26
2.6 9322 DIFFERENTIAL PROBE Connection 27
2.7 Loading Recoding Paper 27
2.8 Storage and Handling Precautions 30
2.9 Notes on Measurement 31
2.9.1 Using a Voltage Transformer 33
2.9.2 Maximum Input Voltage 33
Chapter 3 Basic Operation and Measurement 35
3.1 Basic Operation 35
3.1.1 Basic Display Operation 35
3.1.2 Setting Items 36

3.1.3 JOG/SHUTTLE Control and Select Key 37
3.1.4 Measurement Start and End 38
3.1.5 Basic Input Operation 38
3.1.6 Printer Key Operation 39
3.1.7 Other Keys Operation 39
3.1.8 On-line Help 41
3.2 Basic Measurement and Setting Procedures 42
3.2.1 Basic Operation Flow 42
3.2.2 Measuring and Recording a Voltage
(Memory Recorder Function) 43
3.2.3 Measuring and Recording a Voltage
(Recorder Function) 45
3.2.4 Measuring and Recording an RMS Value
(RMS Recorder Function) 47
Chapter 4 Memory Recorder Function 49
4.1 Outline 49
4.1.1 Outline of the Memory Recorder Function 49
4.1.2 Operation Sequence 50
4.2 Making Settings 51
4.2.1 Setting the Function Mode 51
4.2.2 Setting the Time Axis Range 52
4.2.3 Setting the Recording Length 53
4.2.4 Setting the Format 55
4.2.5 Using the X-Y Waveform Plots 57
4.2.6 Setting the Printer Format 59
4.2.7 Setting the Roll Mode 61
4.2.8 Setting the Auto Print Function 61
4.2.9 Setting the Auto Save Function 62
4.2.10 Overlay 64
4.2.11 Setting the Trigger 65
4.2.12 Input Channel Settings 65
4.3 Settings on the Display Screen 66
4.3.1 Setting Magnification/Compression Along the Time Axis 66
4.3.2 Automatic Setting of Time Axis and Voltage Axis 67
4.4 Processing Functions (Waveform Parameter Processing) 68
4.4.1 Summary of the Processing Functions 68
4.4.2 Processing Method 69
4.4.3 Waveform Parameter Calculation Details 71

4.5 Start and Stop Measurement Operation 75
4.6 Print Examples 76
Chapter 5 Recorder Function 79
5.1 Outline 79
5.1.1 Outline of the Recorder Function 79
5.1.2 Operation Sequence 80
5.2 Making Settings 81
5.2.1 Setting the Function Mode 81
5.2.2 Setting the Time Axis Range and Sampling 82
5.2.3 Setting the Recording Length 84
5.2.4 Setting the Format 86
5.2.5 Setting the Printer Format 89
5.2.6 Setting the Additional Recording Function 91
5.2.7 Setting the Printer Function (Real Time Printing) 92
5.2.8 Setting the Auto Save Function 93
5.2.9 Setting the Trigger 94
5.2.10 Input Channel Settings 94
5.3 Settings on the Display Screen 95
5.3.1 Setting Compression Along the Time Axis 95
5.4 Start and Stop Measurement Operation 96
5.5 Print Examples 97
Chapter 6 RMS Recorder Function 99
6.1 Outline 99
6.1.1 Outline of the RMS Recorder Function 99
6.1.2 Operation Sequence 100
6.2 Making Settings 101
6.2.1 Setting the Function Mode 101
6.2.2 Setting the Time Axis Range 102
6.2.3 Setting the Frequency 103
6.2.4 Setting the Recording Length 104
6.2.5 Setting the Format 106
6.2.6 Setting the Printer Format 108
6.2.7 Setting the Additional Recording Function 110
6.2.8 Setting the Printer Function (Real Time Printing) 111
6.2.9 Setting the Auto Save Function 112
6.2.10 Setting the Trigger 113
6.2.11 Input Channel Settings 113

6.3 Settings on the Display Screen 114
6.3.1 Setting Compression Along the Time Axis 114
6.4 Start and Stop Measurement Operation 114
6.5 Print Examples 115
Chapter 7 Input Channel Settings 117
7.1 Overview 117
7.2 Selecting Channels (Memory Recorder Function Only) 117
7.3 Making the Settings of the 8936 ANALOG UNIT 118
7.3.1 Setting the Waveform Display Color 118
7.3.2 Setting the Waveform Display Graph Type 120
7.3.3 Setting the Voltage Axis Range 121
7.3.4 Setting the Input Coupling 122
7.3.5 Setting the Magnification/Compression Ratio Along the
Voltage Axis 123
7.3.6 Setting the Zero Position 124
7.3.7 Zero Adjustment 126
7.3.8 Configuring Baseline Offset 127
7.3.9 Setting the Low-Pass Filter 129
7.4 Making the Settings of the 8937 VOLTAGE/TEMP UNIT 130
7.4.1 Setting Input for the VOLTAGE/TEMP UNIT 130
7.4.2 Making the Settings of Voltage Measurement 131
7.4.3 Making the Settings of Temperature Measurement 132
7.5 Making the Settings of the 8938 FFT ANALOG UNIT 135
7.5.1 Settings 135
7.5.2 Setting the Anti-aliasing Filter (Advanced Version) 135
7.6 Making the Settings of the 8939 STRAIN UNIT 137
7.6.1 Setting the Waveform Display Color 137
7.6.2 Setting the Waveform Display Graph Type 137
7.6.3 Setting the Measurement Range 137
7.6.4 Auto-balancing 138
7.6.5 Setting the Magnification/Compression Ratio Along the
Measurement Range 139
7.6.6 Setting the Zero Position 140
7.6.7 Setting the Low-Pass Filter 140
7.7 Making the Settings of the 8940 F/V UNIT 141
7.7.1 Settings 141
7.7.2 Setting for Measuring Frequency 142

7.7.3 Setting Integral Measurement 146
7.7.4 Setting for Measuring Pulse Duty Ratio 148
7.7.5 Setting for Measuring Voltage 149
7.7.6 Setting for Measuring Current 150
7.8 Making the Settings of the 8946 4 ch ANALOG UNIT 152
7.8.1 Settings 152
7.8.2 Setting the Input Coupling 153
7.9 Making the Settings of the 8947 CHARGE UNIT 154
7.9.1 Settings 154
7.9.2 Setting for Measuring Acceleration 155
7.9.3 Setting for Measuring Voltage 159
7.10 Making Logic Input Settings 160
7.11 Copying Channels 162
7.12 Arbitrary Setting of Voltage Axis Magnification/
Compression and Display Range 163
7.13 Input Level Monitor Function 166
7.14 Channel Guide 168
Chapter 8 Trigger Functions 169
8.1 Overview 169
8.2 Setting the Trigger Mode 171
8.3 Setting the Pre-trigger
(Memory Recorder and RMS Recorder Functions) 172
8.4 Trigger Timing (Recorder Function) 175
8.5 Setting Trigger Source AND/OR Linking 176
8.6 Using the Analog Trigger Function 177
8.6.1 Level Trigger (RMS Recorder Function Excluded) 178
8.6.2 Window-In, Window-Out Trigger
(RMS Recorder Function Excluded) 182
8.6.3 Voltage Drop Trigger (Memory Recorder Function Only)
185
8.6.4 Period Trigger (RMS Recorder Function Excluded) 187
8.6.5 RMS Level Trigger (RMS Recorder Function Only) 191
8.7 Using the Logic Trigger Function 194
8.8 Using the Timer Trigger Function 196
8.9 Using the External Trigger Function 199
8.10 Manual Trigger 200
8.11 Trigger Output Connector 200

Chapter 9 SYSTEM Screen Settings 201
9.1 Overview 201
9.2 How to Use the SYSTEM Screen 202
9.3 Special Function Settings [ SETUP ] 203
9.3.1 Channel Selection (Memory Recorder Function) 204
9.3.2 Start Key Backup 204
9.3.3 Setting the Grid 205
9.3.4 Channel Marker Function 205
9.3.5 Displaying the Time from the Trigger Point
(Time Display) 206
9.3.6 List and Gauge Functions 206
9.3.7 Setting the Printer Density 207
9.3.8 Setting Backlight Saver Function 207
9.3.9 Setting the Display Colors 208
9.3.10 Setting the Beep Sound 209
9.3.11 Setting the Language 209
9.3.12 Setting PRINT/EXT.SMPL 210
9.4 Scaling Function [ SCALING ] 211
9.4.1 Conversion Ratio Scaling 212
9.4.2 2-Point Scaling 215
9.4.3 Unit Entry Procedure 219
9.4.4 Copy Settings 220
9.4.5 Scaling Setting Example 221
9.5 Adding Comments to a Graph [ COMMENT ] 222
9.5.1 Title Comment Input 223
9.5.2 Analog Channel Comment Input 224
9.5.3 Moving to the Analog Channel Comment Input Screen
or the Logic Channel Comment Input Screen 225
9.5.4 Logic Channel Comment Input 226
9.5.5 Character Entry Procedure 227
9.5.6 Description of Window Contents 228
9.6 Interface Settings (Media Settings) 229
9.6.1 Setting the Output Destination by the COPY Key 230
9.6.2 Setting the Output Destination by the PRINT Key 231
9.6.3 GP-IB Interface Settings 232
9.6.4 RS-232C Interface Settings 233
9.6.5 Setting the LAN Interface 235
9.7 Initialization [ INITIALIZE ] 239

9.7.1 Setting the Clock [ TIME SET ] 239
9.7.2 Clear Waveform Data [ WAVE DATA CLEAR ] 240
9.7.3 System Reset [ SYSTEM RESET ] 241
9.8 Self Check 242
9.8.1 ROM/RAM Check 242
9.8.2 Printer Check 243
9.8.3 Display Check 243
9.8.4 Key Check 244
9.8.5 PC Card Check 244
Chapter 10 Printout of Waveform Data 245
10.1 Overview 245
10.2 Selecting Waveform or Numeric Print 246
10.3 Using the Smooth Print Function
(Memory Recorder Function Only) 248
10.4 Setting the Grid 250
10.5 Channel Marker Function 250
10.6 Adding Comment to Printout 251
10.7 Printing Procedure 252
10.7.1 Manual Print (All Functions) 252
10.7.2 Auto Print (Memory Recorder) 253
10.7.3 Real-Time Print (Recorder, RMS Recorder) 254
10.7.4 Partial Print (All Functions) 255
10.7.5 Screen Hard Copy (All Functions) 256
10.7.6 List Print (All Functions) 256
10.7.7 Report Print (All Functions) 257
10.7.8 External Printer (Color Print) 258
Chapter 11 Using the A/B Cursors / Waveform Scrolling 259
11.1 Overview 259
11.2 Using the A/B Cursors 260
11.2.1 Line Cursor (Vertical, Horizontal) (All Functions) 260
11.2.2 Trace Cursor 260
11.2.3 Using the Cursors 261
11.3 Scrolling the Waveform 264
11.4 Zoom Function 265
11.5 Vernier Function 267

Chapter 12 External Input/Output Connectors /
Key Lock Function 269
12.1 Overview 269
12.2 External Start/Stop 270
12.3 External Printing/Sampling 272
12.4 Using the External Trigger Input (EXT TRIG) 273
12.5 Using the External Trigger Output (TRIG OUT) 274
12.6 Using the Evaluation Outputs (GO), (NG) 275
12.7 Using the Key Lock Function 276
Chapter 13 Storing, Retrieving and Deleting Waveform Data
and Measurement Settings 277
13.1 Outline 277
13.2 Handling the Floppy Disk 278
13.2.1 Floppy Disk 278
13.2.2 Using the Floppy Disk Drive 279
13.2.3 Initializing (Formatting) the Floppy Disk 280
13.3 Handling the PC Card 281
13.3.1 PC Card 282
13.3.2 Using the PC Card Slot (PC Card with a Cable Only) 283
13.4 Storing, Retrieving and Deleting Data on the Floppy Disk
or PC Card 286
13.4.1 Overview 286
13.4.2 FILE Screen 286
13.4.3 What Can Be Recorded and How Much 286
13.4.4 Selecting the Media Type 287
13.4.5 Detailed Explanation of the Commands 288
13.5 Using a PC Card on a Personal Computer 303
13.5.1 Windows 95 303
13.5.2 Windows 3.1 and MS-DOS 303
Chapter 14 Specifications 305
14.1 General Specifications 305
14.1.1 Basic Specifications 305
14.1.2 Recorder 307
14.1.3 Display 307
14.1.4 External Data Storage 308
14.1.5 Interface 308

14.1.6 Others 309
14.2 Trigger Unit 310
14.3 Memory Recorder Function 311
14.4 Recorder Function 312
14.5 RMS Recorder Function 313
14.6 Recorder & Memory Function (Advanced Version) 314
14.7 FFT Function (Advanced Version) 315
14.8 Advanced Version 316
14.9 Auxiliary Function 316
14.10 Others 317
14.11 9439 DC POWER ADAPTER Specifications 318
14.12 System Operation 319
Chapter 15 Logic and Analog Inputs 323
15.1 Logic Inputs 323
15.1.1 Logic Probes 324
15.2 Analog Inputs 326
15.2.1 8936 ANALOG UNIT 326
15.2.2 8937 VOLTAGE/TEMP UNIT 327
15.2.3 8938 FFT ANALOG UNIT 329
15.2.4 8939 STRAIN UNIT 330
15.2.5 8940 F/V UNIT 331
15.2.6 8946 4 ch ANALOG UNIT 333
15.2.7 8947 CHARGE UNIT 334
15.3 Replacement Procedure 336
15.3.1 Replacement Procedure 1 337
15.3.2 Replacement Procedure 2 337
15.4 Input Cables 338
15.4.1 Connection Cable 338
15.4.2 9322 DIFFERENTIAL PROBE Connection 339
15.4.3 9018-10/9132-10 CLAMP-ON PROBE 340
15.5 Measurement Errors Caused by Signal Source Internal
Resistance 341

Chapter 16 Maintenance 343
16.1 Printer Head Cleaning 344
16.2 Removing the Battery Before Discarding the 8835-01 345
16.3 Troubleshooting 347
16.4 Cleaning the Unit 348
16.5 Service 348
Appendix APPENDIX1
Appendix 1 Error and Warning Messages APPENDIX1
Appendix 1.1 Error Messages APPENDIX2
Appendix 1.2 Warning Messages APPENDIX2
Appendix 2 Glossary APPENDIX5
Appendix 3 Reference APPENDIX7
Appendix 3.1 Sampling APPENDIX7
Appendix 3.2 Aliasing APPENDIX7
Appendix 3.3 Measurement Limit Frequency APPENDIX8
Appendix 3.4 Recorder Function APPENDIX9
Appendix 3.5 RMS Recorder Function APPENDIX10
Appendix 4 Size of a Waveform File APPENDIX11
Appendix 4.1 Binary Data APPENDIX11
Appendix 4.2 Text File APPENDIX15
Appendix 5 Waveform Viewer (Wv) APPENDIX19
Appendix 5.1 Waveform Viewer Menus APPENDIX21
Appendix 5.2 Using the Waveform Viewer APPENDIX23
Appendix 5.3 Conversion to CSV Format APPENDIX26
Appendix 5.4 Batch Conversion APPENDIX28

i
────────────────────────────────────────────────────
Introduction
────────────────────────────────────────────────────
I
ntroduction
I
nspection
Thank you for purchasing this HIOKI "8835-01 MEMORY HiCORDER."
To get the maximum performance from the unit, please read this manual first,
and keep this at hand.
・When the unit is delivered, check and make sure that it has not been
damaged in transit. In particular, check the accessories, panel switches, and
connectors.
・If the unit is damaged, or fails to operate according to the specifications,
contact your dealer or HIOKI representative.
Accessories
Grounded three-core power cord 1
Ground adapter 1
Recording paper 1
Protective cover 1
Roll paper attachment 2
PC card protector 1
Instruction Manual 1
Application Disk (CD-R) 1

ii
────────────────────────────────────────────────────
Inspection
────────────────────────────────────────────────────
Options
9540-01 FUNCTION UP DISK
8936 ANALOG UNIT
8937 VOLTAGE/TEMP UNIT
8938 FFT ANALOG UNIT
8939 STRAIN UNIT
8940 F/V UNIT
8946 4 ch ANALOG UNIT
8947 CHARGE UNIT
9439 DC POWER ADAPTER
9221 RECORDING PAPER (10 rolls)
9557 RS-232C CARD
9558 GP-IB CARD
9559 PRINTER CARD
9333 LAN COMMUNICATOR
9335 WAVE PROCESSOR
9626 PC CARD 32 M
9627 PC CARD 64 M
9726 PC CARD 128 M
9727 PC CARD 256 M
9728 PC CARD 512 M
9729 PC CARD 1 G
9578 10BASE-T LAN CARD
9388 CARRYING CASE
9320 LOGIC PROBE
9321 LOGIC PROBE
9322 DIFFERENTIAL PROBE
9324 POWER CORD (for logic connector)
9325 POWER CORD (for the 8940 F/V UNIT sensor connector)
9303 PT *
9197 CONNECTION CORD (for high voltage, maximum input voltage 500 V)
9198 CONNECTION CORD (for low voltage, maximum input voltage 300 V)
9199 CONVERSION ADAPTOR
9217 CONNECTION CORD (insulated BNC to insulated BNC)
9318 CONVERSION CABLE (for 9270, 9271, 9272, 9277, 9278 and 9279)
9319 CONVERSION CABLE (for 3273)
9305 TRIGGER CORD
220H PAPER WINDER
3273 CLAMP ON PROBE
3273-50 CLAMP ON PROBE
9018-10 CLAMP ON PROBE (10 to 500 A, 40 Hz to 3 kHz)
9132-10 CLAMP ON PROBE * (20 to 1000 A, 40 Hz to 1 kHz)
9270 CLAMP ON SENSOR * (20 A, 5 Hz to 50 kHz)
9271 CLAMP ON SENSOR * (200 A, 5 Hz to 50 kHz)
9272 CLAMP ON SENSOR * (20/200 A, 5 Hz to 10 kHz)
9277 UNIVERSAL CLAMP ON CT (20 A, DC to 100 kHz)
9278 UNIVERSAL CLAMP ON CT (200 A, DC to 100 kHz)
9279 UNIVERSAL CLAMP ON CT * (500 A, DC to 20 kHz)
9555 SENSOR UNIT * (used with the 9270 to 9272, and the 9277 to 9279)
*: Not complied with the CE marking

iii
────────────────────────────────────────────────────
Safety Notes
────────────────────────────────────────────────────
DANGE
R
This product is designed to conform to IEC 61010 Safety Standards, and
has been thoroughly tested for safety prior to shipment. However,
mishandling during use could result in injury or death, as well as damage
to the product. Be certain that you understand the instructions and
precautions in the manual before use. We disclaim any responsibility for
accidents or injuries not resulting directly from product defects.
・This symbol is affixed to locations on the equipment where the
operator should consult corresponding topics in this manual
(which are also marked with the symbol) before using relevant
functions of the equipment.
・In the manual, this mark indicates explanations which it is
particularly important that the user read before using the
equipment.
Indicates a grounding terminal.
Indicates AC (Alternating Current).
Indicates DC (Direct Current).
Indicates both DC (Direct Current) and AC (Alternating Current).
Indicates the ON side of the power switch.
Indicates the OFF side of the power switch.
S
afety Notes
This manual contains information and warnings essential for safe operation of
the product and for maintaining it in safe operating condition. Before using
the product, be sure to carefully read the following safety notes.
Safety symbols
Accuracy
We define measurement tolerances in terms of f.s. (full scale), with the
following meanings:
f.s. (maximum display value or scale length)
The maximum displayable value or scale length. This is usually the name of
the currently selected range.

iv
────────────────────────────────────────────────────
Safety Notes
────────────────────────────────────────────────────
DANGE
R
Indicates that incorrect operation presents extreme danger of
accident resulting in death or serious injury to the user.
WARNIN
G
Indicates that incorrect operation presents significant danger of
accident resulting in death or serious injury to the user.
CAUTIO
N
Indicates that incorrect operation presents possibility of injury to the
user or damage to the equipment.
NOTE Denotes items of advice related to performance of the equipment or
to its correct operation.
Conventions used in this manual
The following symbols are used in this Instruction Manual to indicate the
relative importance of cautions and warnings.
Measurement categories (Overvoltage categories)
This instrument complies with CAT II safety requirements.
To ensure safe operation of measurement instruments, IEC 61010 establishes
safety standards for various electrical environments, categorized as CAT I to
CAT IV, and called measurement categories. These are defined as follows.
CAT : Secondary electrical circuits connected to an AC electrical outlet
through a transformer or similar device.
CAT : Primary electrical circuits in equipment connected to an AC electrical
outlet by a power cord (portable tools, household appliances, etc.)
CAT : Primary electrical circuits of heavy equipment (fixed installations)
connected directly to the distribution panel, and feeders from the
distribution panel to outlets.
CAT : The circuit from the service drop to the service entrance, and to the
power meter and primary overcurrent protection device (distribution
panel).
Higher-numbered categories correspond to electrical environments with
greater momentary energy. So a measurement device designed for CAT III
environments can endure greater momentary energy than a device designed
for CAT II. Using a measurement instrument in an environment designated
with a higher-numbered category than that for which the instrument is rated
could result in a severe accident, and must be carefully avoided.
Never use a CAT I measuring instrument in CAT II, III, or IV environments.
The measurement categories comply with the Overvoltage Categories of the
IEC60664 Standards.

v
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Notes on Use
────────────────────────────────────────────────────
WARNIN
G
Do not use the product where it may be exposed to corrosive or
combustible gases. The product may be damaged or cause an explosion.
CAUTIO
N
・This product should be installed and operated indoors only, between 5 and
40℃and 35 to 80% RH.
・Do not store or use the product where it could be exposed to direct sunlight,
high temperature or humidity, or condensation. Under such conditions, the
product may be damaged and insulation may deteriorate so that it no longer
meets specifications.
・This product is not designed to be entirely water- or dust-proof. To avoid
damage, do not use it in a wet or dusty environment.
WARNIN
G
Before turning the product on, make sure the source voltage matches
that indicated on the product’s power connector. Connection to an
improper supply voltage may damage the product and present an
electrical hazard.
Before making connections, make sure the 9439 DC POWER ADAPTER
is turned off. The 8835-01 could be damaged by a spark if it is
connected to a voltage source while its power supply is on.
WARNIN
G
To avoid electric shock and ensure safe operation, connect the power
cable to a grounded (3-contact) outlet.
N
otes on Use
Follow these precautions to ensure safe operation and to obtain the full
benefits of the various functions.
(1) Installation environment
(2) Power supply connections
・Check that the power supply is correct for the rating of the unit. (The AC
fuse is integrated in the unit.)
・The AC power power switch on 8835-01 is for AC power. If DC power is
being supplied and the switch on DC power adapter is set to ON, the 8835-
01 will operate also if the power switch is set to OFF.
(3) Grounding the unit

vi
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Notes on Use
────────────────────────────────────────────────────
DANGE
R
Maximum input voltage ratings for the 8936 ANALOG UNIT, 8937
VOLTAGE/TEMP UNIT, 8938 FFT ANALOG UNIT, 8939 STRAIN UNIT 8940
F/V UNIT, 8946 4ch ANALOG UNIT, 8947 CHARGE UNIT and input
terminals of the 8835-01 are shown below. To avoid the risk of electric
shock and damage to the unit, take care not to exceed these ratings.
The maximum rated voltage to earth of the 8936, 8937, 8938, 8939, 8940,
8946 and 8947 (voltage between input terminals and 8835-01 frame
ground, and between inputs of other input units) is shown below. To
avoid the risk of electric shock and damage to the unit, take care that
voltage between channels and between a channel and ground does not
exceed these ratings.
The maximum rated voltage to earth rating applies also if an input
attenuator or similar is used. Ensure that voltage does not exceed these
ratings.
When measuring power line voltages, 8936 or 8938 should 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.
Always use the optional connection cables. Any exposed metal sections
in a connection cable consist a risk of electric shock.
Input/output termina
l
Maximum input voltage Maximum rated voltage
to earth
8936 inputs 400 VDC max. 370 V AC/DC
8937 inputs 30 V rms or 60 VDC 30 V rms or 60 VDC
8938 inputs 400 VDC max. 370 V AC/DC
8939 inputs 10 VDC max. 30 Vrms or 60 VDC
8940 inputs 30 V rms or 60 VDC
(BNC and sensor
connector terminals)
30 V rms or 60 VDC
(BNC terminal)
Not insulated
(Sensor connector termina
l)
8946 inputs 30 V rms or 60 VDC 30 V rms or 60 VDC
8947 inputs 30 V rms or 60 VDC 30 V rms or 60 VDC
EXT TRIG -5 to +10 VDC
Not insulated
START/STOP
PRINT/EXT SMPL
TRIG OUT -20 V to +30 VDC
100 mA max.
200 mW max.
GO
NG
The external I/O terminal and the 8835-01 have a common GND.
(4) Probe Connection, Measurement Voltage Input

vii
────────────────────────────────────────────────────
Notes on Use
────────────────────────────────────────────────────
DANGE
R
Logic probe input and 8835-01 share the same GND. Separate power
supply sources applied to the testing device and 8835-01 may result in
risk of electric shock and damage to the unit.
Even with the same power supply source, certain ways of wiring may
cause a variance in electric potential sending current that may damage
testing device and 8835-01. The following shows proper wiring to avoid
damage. For details, see Section 2.5.
(1) Before connecting logic probe to testing device, connect grounded
three-core power cord (attachment) to the device to be tested and
8835-01 and supply power from the same outlet.
(2) Before connecting logic probe to device to be tested, connect GND of
device to be tested with 8835-01 functional ground terminal. Make
sure that power is supplied from the same outlet.
When using grabber clips, the 9322’s maximum rated voltage to earth is
1500 V AC/DC; when using alligator clips, it is 1000 VAC/DC. To avoid
electrical shock and possible damage to the unit, never apply voltages
greater than these limits between the input channel terminals and
chassis, or across the inputs of two 9322s.
Maximum input voltage is 1000 VAC/2000 VDC. Do not measure voltage
in excess of these limitations, as doing so may damage the unit or
cause an accident that might result in injury or death.
CAUTIO
N
・Use designated connection cables only. Other cables may interfere with
proper connection and measurement accuracy.
・Maximum charge input for miniature connecter terminal in 8947 CHARGE
UNIT is +, - 500 pC (at range 6 high sensitivity) and +, - 50000 pC (at range
6 low sensitivity).
NOTE
WARNIN
G
To avoid electric shock accident, before removing or replacing an input
module, confirm that the instrument is turned off and that the input
cords and power cords are disconnected.
To avoid the danger of electric shock, never operate the product with an
input module removed. To use the product after removing an input
module, install a blank panel over the opening of the removed module.
Use only the specified connection cord. Using a non-specified cable may result
in incorrect measurements due to poor connection or other reasons.
(5) Replacing the input units (see Section 15.3)

viii
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Notes on Use
────────────────────────────────────────────────────
NOTE
NOTE
CAUTIO
N
For shipping or long-term storage, be certain that the recording head is in the
raised position. Otherwise the rollers could be deformed and cause uneven
printing.
CAUTIO
N
・Remove the printer paper from the unit. If the paper is left in the unit, paper
support parts may be damaged due to vibrations.
・To avoid damage to the product, be sure to remove the PC card and floppy
disk before shipping.
・Use the original packing materials when reshipping the product, if possible.
NOTE
WARNIN
G
Before using the product, make sure that the insulation on the cords and
probes is undamaged and that no bare conductors are improperly
exposed. Using the product under such conditions could result in
electrocution. Replace the cords and probes specified by HIOKI.
(6) Recording paper
･This unit uses a thermal printer. The recording paper supplied has
characteristics finely tuned for use with the printer.
Using recording paper of a different specification may not only result in
impaired printing quality, but even prevent the printer from operating.
Always use the HIOKI specified product.
･Insert the paper with correct orientation (see Section 2.7).
(7) Using a printer
Avoid using the printer in hot, humid environments, as this can greatly reduce
printer life.
(8) Storing
(9) Shipping
(10) Others
･In the event of problems with operation, first refer to Section 16.3,
"Troubleshooting."
･Carefully read and observe all precautions in this manual.
Preliminary Checks
Before using the product the first time, verify that it operates normally to
ensure that the no damage occurred during storage or shipping. If you find
any damage, contact your dealer or HIOKI representative.