INSTRUCTION MANUAL
8841
8842
MEMORY HiCORDER
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 Identification of Controls and Indicators
Chapter 2 Installation and Preparation 7
2.1 Installation of the Unit 7
2.2 Power Supply and Ground Connections
2.2.1 Connecting the AC Power Supply 9
2.2.2 Connecting the 9433 DC POWER ADAPTER 10
2.2.3 Functional Grounding of the 8841/8842
2.3 Power On/Off 13
2.4 Connection of the Input Unit
2.4.1 8936/ 8938/ 8946 ANALOG UNITs 14
2.4.2 8937 VOLTAGE/TEMP UNIT 15
2.4.3 8939 STRAIN UNIT
2.4.4 8940 F/V UNIT
2.4.5 8947 CHARGE UNIT 19
2.5 Logic Probe Connection 20
2.6 9018-10/9132-10 CLAMP ON PROBE
12
14
16
17
21
3
9
2.7 9322 DIFFERENTIAL PROBE Connection
2.8 Loading Recoding Paper
2.9 Care of Recording Paper
2.10 Notes on Measurement
2.10.1 Maximum Input Voltage 28
2.10.2 Using a Voltage Transformer
22
23
25
26
29
Chapter 3 Basic Key Operation 31
3.1 Basic Key Operation 31
3.1.1 Basic Display Operation (MENU) 31
3.1.2 Printer Key Operation 31
3.1.3 Setting the Items 32
3.1.4 Jog/Shuttle Controls and Select Key 32
3.1.5 Basic Input Operation 33
3.1.6 Measurement Start and Stop Operation 33
3.2 Other Keys Operation 34
3.3 Screen Configuration
35
Chapter 4 Memory Recorder Function 37
4.1 Overview of the Memory Recorder Function 37
4.2 Operation Sequence (MEM)
4.3 STATUS Settings (MEM) 41
4.3.1 Setting the Function Mode 42
4.3.2 Setting the Time Axis Range 42
4.3.3 Setting the Recording Length 43
4.3.4 Setting the Display Layout 44
4.3.5 Setting the Interpolation (dot-line) 46
4.3.6 Setting the Print Mode 46
4.3.7 Setting the Roll Mode 47
4.3.8 Setting the Auto Print Function 47
4.3.9 Setting the Auto Save Function 48
4.3.10 Setting the Overlay Function 50
4.3.11 Setting the Averaging Function 51
4.3.12 Setting the Waveform Evaluation 53
39
4.4 Using the X-Y Waveform Plots (MEM) 54
4.5 Settings on the Waveform Display Screen (MEM)
4.6 Auto Range Function
4.7 Other Screen Settings
4.8 Start and Stop Operation (MEM)
57
58
60
61
Chapter 5 Recorder Function 63
5.1 Overview of the Recorder Function 63
5.2 Operation Sequence (REC)
5.3 STATUS Settings (REC)
5.3.1 Setting the Function Mode 68
5.3.2 Setting the Time Axis Range 68
5.3.3 Setting the Sampling Period 69
5.3.4 Setting the Recording Length 69
5.3.5 Setting the Display Layout
5.3.6 Setting the Print Mode
5.3.7 Setting the Additional Recording Function 74
5.3.8 Setting the Printer Function (Real Time Printing) 75
5.3.9 Setting the Auto Save Function 76
5.3.10 Setting the Interpolation (dot-line, X-Y only) 77
5.3.11 Setting the Display Clear Function (X-Y only) 77
65
67
70
73
5.4 Using the X-Y CONT Recorder 78
5.4.1 Setting the Status Screen 79
5.4.2 Setting the Channel Screen 79
5.4.3 Setting the Display Screen
80
5.5 Settings on the Waveform Display Screen (REC) 81
5.6 Start and Stop Operation (REC)
82
Chapter 6 RMS Recorder Function 83
6.1 Overview of the RMS Recorder Function 83
6.2 Operation Sequence (RMS) 84
6.3 STATUS Settings (RMS)
6.3.1 Setting the Function Mode 87
6.3.2 Setting the Time Axis Range 87
6.3.3 Setting the Frequency
6.3.4 Setting the Recording Length
6.3.5 Setting the Display Layout 89
6.3.6 Setting the Print Mode 91
6.3.7 Setting the Additional Recording Function 92
6.3.8 Setting the Printer Function (Real Time Printing)
6.3.9 Setting the Auto Save Function
6.4 Settings on the Waveform Display Screen (RMS) 95
86
88
88
93
93
6.5 Start and Stop Operation (RMS)
96
Chapter 7 Recorder & Memory Function 97
7.1 Overview of the Recorder & Memory Function 97
7.2 Operation Sequence (REC&MEM)
7.3 STATUS Settings (REC&MEM)
7.3.1 Setting the Function Mode 101
7.3.2 Setting the Time Axis Range 102
7.3.3 Setting the Recording Length
7.3.4 Display Function
7.3.5 Setting the Display Layout 105
7.3.6 Setting the Print Mode 106
7.3.7 Setting the Additional Recording Function 107
7.3.8 Setting the Printer Function (Real-time Printing)
7.3.9 Setting the Auto Save Function
7.3.10 Setting the Real-Time Save 111
7.4 Settings on the Waveform Display Screen (REC&
MEM)
98
100
103
104
108
109
117
7.5 Start and Stop Operation (REC&MEM)
118
Chapter 8 FFT Function 119
8.1 Overview of the FFT Function 119
8.2 Operation Sequence (FFT)
8.3 STATUS1 Settings (FFT)
8.3.1 Setting the Function Mode 123
8.3.2 Setting the FFT Channel Mode 123
8.3.3 Setting the Frequency Range 124
8.3.4 FFT Number of Points Setup 125
8.3.5 Setting the Window Function 125
8.3.6 Setting the Display Format 126
8.3.7 Selecting Reference Data 128
8.3.8 Setting the FFT Analysis Mode 129
8.3.9 Setting the X-axis and Y-axis Displays 130
8.3.10 Setting the Analysis Channel 132
8.3.11 Setting the Display Scale 133
8.3.12 Octave Filter Setting 134
120
122
8.4 STATUS2 Settings (FFT) 135
8.4.1 Setting the Averaging Function 136
8.4.2 Setting the Interpolation (dot-line) 139
8.4.3 Setting the Print Mode 140
8.4.4 Setting the Auto Print Function 140
8.4.5 Setting the Auto Save Function
8.4.6 Setting the Waveform Evaluation
141
142
8.5 Settings on the Waveform Display Screen (FFT) 143
8.6 Start and Stop Operation (FFT)
8.7 FFT Analysis Function
8.7.1 Storage Waveform [STR] 145
8.7.2 Linear Spectrum [LIN] 146
8.7.3 RMS Spectrum [RMS] 148
8.7.4 Power Spectrum [PSP] 150
8.7.5 Auto Correlation [ACR] 152
8.7.6 Histogram [HIS]
8.7.7 Transfer Function [TRF]
8.7.8 Cross Power Spectrum [CSP] 156
8.7.9 Cross Correlation [CCR] 158
8.7.10 Unit Impulse Response [IMP] 159
8.7.11 Coherence [COH] 160
8.7.12 Octave Analysis [OCT] 161
144
145
153
154
Chapter 9 Input Channel Settings 165
9.1 Overview 165
9.2 Operation Procedure (Input Channel Setting)
9.3 Setting the CHANNEL Screen
9.3.1 Setting the Waveform Display Color 169
9.3.2 Setting the Waveform Display Graph Position 169
9.3.3 Setting the Voltage Axis Range 170
9.3.4 Setting the Input Coupling 170
9.3.5 Setting the Magnification/Compression Ratio
Along the Voltage Axis 171
9.3.6 Setting the Zero Position
9.3.7 Setting the Low-pass Filter
9.3.8 Setting the Logic Inputs 174
166
168
172
173
9.4 Copying Channel Settings 175
9.5 Zero Settings
9.5.1 Zero Adjustment 176
9.5.2 Zero Offset Setup
176
177
9.6 Channel Guide Function 179
9.7 Setting the Variable Function
180
9.8 Scaling Function (SYSTEM2)
9.8.1 Setting the Scaling Function 183
9.8.2 Scaling Setting Example 186
182
9.9 Comment Function (SYSTEM 3) 187
9.9.1 Title Comment Entry 187
9.9.2 Analog/Logic Channel Comment Entry 188
9.9.3 Character Entry Procedure
189
9.10 Setting the Waveform Display Screen 191
9.10.1 Entering by CH.SET Key 191
9.10.2 Setting the Vernier Function 192
9.10.3 Direct Channel Setting 193
9.11 Setting the 8937 VOLTAGE/TEMP UNIT 194
9.11.1 Making the Settings of Voltage Measurement 194
9.11.2 Making the Settings of Temperature
Measurement 196
9.12 8938 FFT ANALOG UNIT 199
9.13 Setting the 8939 STRAIN UNIT
200
9.14 8940 F/V UNIT
9.14.1 Frequency Measurement 202
9.14.2 Setting the Count Mode 205
9.14.3 Setting the Pulse Duty Ratio Mode 207
9.14.4 Setting the Voltage Mode
201
209
9.14.5 Setting the Current Measurement 211
9.15 Setting the 8947 CHARGE UNIT 212
9.15.1 Acceleration Measurement (Charge/Preamp)
Selection 213
9.15.2 Setting the Sensor Sensitivity
9.15.3 Setting the Voltage Measurement
215
216
Chapter 10 Trigger Functions 217
10.1 Overview of the Trigger Functions 217
10.2 Operation Sequence (Trigger mode setting)
10.3 TRIGGER Screen Organization
10.4 Trigger Mode
10.5 Pre-trigger
10.6 Trigger Timing (REC only)
10.7 Trigger Source AND/OR Linking
10.8 Analog Trigger
10.8.1 Level Trigger 226
10.8.2 Window Trigger 229
10.8.3 Voltage Drop Trigger 231
10.8.4 Period Trigger 233
10.8.5 RMS Level Trigger 236
218
220
221
222
224
225
226
10.9 Logic Trigger 238
10.10 External Trigger Function
10.11 Timer Trigger Function
10.12 Manual Trigger
10.13 Trigger Output Terminal
240
241
244
244
Chapter 11Waveform Display Screen Operation 245
11.1 Scrolling the Waveform 246
11.2 Using the A･B Cursors
11.2.1 Using the Line Cursors (Vertical) 248
11.2.2 Using the Line Cursors (Horizontal) 249
11.2.3 Using the Trace Cursors 250
11.2.4 Using the A･B Cursors (X-Y Screen)
11.3 Magnification/compression Ratio Along the Time
Axis 253
11.4 Zoom Function (MEM only)
11.5 Input Level Monitor Function
11.6 View Function (VIEW key)
11.6.1 Position Display 256
11.6.2 Block Display (MEM only)
247
252
254
255
256
257
Chapter 12 SYSTEM Screen Settings 259
12.1 Overview 259
12.2 SET UP Screen (SYSTEM 1)
12.2.1 Using Channel (MEM only) 260
12.2.2 Start Backup
12.2.3 Backlight Saver
12.2.4 Display Color
12.2.5 Beep Sound
12.2.6 Display Language 263
12.2.7 Grid Type 263
12.2.8 Channel Marker 263
12.2.9 Time Value
12.2.10 List & Gauge
12.2.11 Printer Density 264
12.2.12 Upper-lower Values Print 264
12.2.13 0 Position Comment 265
12.2.14 Counter Print
12.2.15 Numerical Input
12.2.16 Variable Auto Calibration 266
260
261
261
262
262
264
264
265
265
12.3 SCALING Screen (SYSTEM 2) 266
12.4 COMMENT Screen (SYSTEM 3)
12.5 INTERFACE Screen (SYSTEM 4)
12.5.1 Output Destination by the COPY Key 269
12.5.2 Output Destination by the PRINT Key 269
12.5.3 Interface Settings 269
12.5.4 Setting the SCSI ID 270
12.5.5 Setting the Internal MO (when the 9607 is
installed) 270
12.5.6 Setting the LAN 271
267
268
12.6 INITIALIZE Screen 278
12.6.1 Setting the Clock 278
12.6.2 Clearing the Waveform Data 278
12.6.3 System Reset 279
12.6.4 List System Configuration 279
12.7 Self-check 280
12.7.1 ROM/RAM Check 280
12.7.2 Printer Check
12.7.3 Display Check 281
12.7.4 Key Check 281
12.7.5 PC Card Check 281
280
Chapter 13 Printout of Measurement Data 283
13.1 Printout of Measurement Data Operating
Procedure
284
13.2 Setting the STATUS Screen (printout)
13.2.1 Setting the Display Format 286
13.2.2 Setting the Print Mode
286
287
13.3 Setting the CHANNEL Screen (printout) 288
13.3.1 Setting the Print Density 288
13.3.2 Setting the Waveform Display Graph Position 289
13.4 Setting the SYSTEM Screen (printout) 290
13.4.1 SET UP Screen (SYSTEM 1) 290
13.4.2 SCALING Screen (SYSTEM 2) 292
13.4.3 COMMENT Screen (SYSTEM 3)
13.4.4 Setting the Output Destination by the COPY
Key
13.4.5 Setting the Output Destination by the PRINT
Key 294
292
293
13.5 Example of Printer Output 296
13.6 Printing Procedure
13.6.1 Manual Print 303
13.6.2 Auto Print 304
13.6.3 Real Time Print 305
13.6.4 Partial Print 306
13.6.5 Screen Hard Copy 307
13.6.6 List Print 307
13.6.7 Report Print 307
303
13.7 External Printer (color print) 308
Chapter 14 Storing Measurement Data 311
14.1 Floppy Disk 312
14.2 9607 MO UNIT (Option)
14.2.1 Setting the Internal MO 314
14.3 PC Card 315
14.3.1 Using the PC Card Slot (PC Card with a
Cable Only) 316
14.4 SCSI Interface 317
14.4.1 SCSI Interface Specifications 317
14.4.2 Setting the MO Disk Drive
14.4.3 Setting the SCSI ID
14.5 Selecting the Media Type 320
14.6 Initializing (FORMAT)
14.7 Saving the Data (SAVE)
313
318
319
321
322
14.7.1 Setting the Data to Store 324
14.8 Loading the Data (LOAD) 331
14.9 File Information (INFO) 335
14.10 Deleting the Data (DELETE)
14.11 Sorting Files (SORT)
14.12 Operating the Directory
14.12.1 Making a Directory (MK DIR) 338
14.12.2 Changing a Directory (CH DIR) 339
14.12.3 Deleting a Directory (RM DIR) 340
336
337
338
14.13 Printing the File List 341
Chapter 15 Memory Segmentation Function 343
15.1 Using the Sequential Save Function 344
15.2 Using the Multi-Block Function (MEM)
349
Chapter 16 Waveform Operation Function 353
16.1 Waveform Parameter Calculation (MEM) 353
16.1.1 Making Settings for Waveform Parameter
Calculation
16.1.2 Making Settings for Waveform Parameter
Evaluation
16.1.3 Setting the Waveform Parameter GO/NG
Stop Mode 358
16.1.4 Executing Waveform Parameter Calculation 359
355
357
16.2 Calculating Waveform Data 361
16.2.1 Preparing for Waveform Processing 362
16.2.2 Defining the Processing Equation 363
16.2.3 Copying an Equation 366
16.2.4 Setting the Channel for Recording Processing
Results 367
16.2.5 Setting the Display Scale and Number of
Moved Points
16.2.6 Perform Waveform Processing
368
370
16.3 Waveform GO/NG Evaluation (MEM, FFT) 372
16.3.1 Setting the Waveform Area 374
16.3.2 Setting the Waveform Evaluation Mode 375
16.3.3 Setting the GO/NG Stop Mode 375
16.3.4 Creating the Evaluation Area 376
16.3.5 Editor Command Details 376
Chapter 17 External Input/ Output Terminals/ Key Lock
Function 379
17.1 External Input/Output Terminals 379
17.1.1 Connecting the Terminals 379
17.1.2 External Trigger Input Terminal [EXT TRIG] 380
17.1.3 Trigger Output Terminal [TRIG OUT] 380
17.1.4 External Sampling Terminal [EXT SMPL] 381
17.1.5 External Print Terminal / External Start/Stop
Terminal 381
17.1.6 GO/NG Evaluation Output Terminal 382
17.2 Using the Key Lock Function 383
Chapter 18 Specifications 385
18.1 General Specifications 385
18.2 External Data Storage and Interface
18.3 Trigger Unit
18.4 Memory Recorder Function
18.5 Recorder Function
18.6 RMS Recorder Function
18.7 Recorder & Memory Function
18.8 FFT Function
18.9 Auxiliary Functions
18.10 Others
18.11 System Operation
387
389
390
391
392
393
394
395
396
397
18.12 Maximum Recording Length for Time Axis
Settings
18.13 Memory Capacity and Recording Length
398
400
Chapter 19 Logic and Analog Inputs 401
19.1 Logic Inputs 401
19.2 Analog Inputs
19.2.1 8936 ANALOG UNIT 403
19.2.2 8937 VOLTAGE / TEMP UNIT
19.2.3 8938 FFT ANALOG UNIT
19.2.4 8939 STRAIN UNIT 407
19.2.5 8946 4ch ANALOG UNIT 408
19.2.6 8940 F/V UNIT 409
19.2.7 8947 CHARGE UNIT 411
403
404
406
Chapter 20 Maintenance and Service 415
20.1 Maintenance and Inspection 415
20.2 Replacing the Input Units
20.3 Replacing the Fuse of the 9433
20.4 Removing the Battery Before Discarding the Unit
417
418
419
20.5 Troubleshooting 420
Appendix APPENDIX 1
Appendix 1 Error Messages APPENDIX 1
Appendix 2 Glossary
Appendix 3 Reference
Appendix 3.1 Sampling APPENDIX 8
Appendix 3.2 Aliasing APPENDIX 8
Appendix 3.3 Measurement Limit Frequency APPENDIX 9
Appendix 3.4 Recorder Function APPENDIX 10
Appendix 3.5 RMS Recorder Function APPENDIX 11
Appendix 3.6 Averaging Equations APPENDIX 12
Appendix 3.7 "2-point method" Scaling Equation
APPENDIX 12
Appendix 3.8 Waveform Parameter Calculation Details
APPENDIX 13
Appendix 3.9 Details on Operators
Appendix 3.10 FFT Function
APPENDIX 6
APPENDIX 8
APPENDIX 16
APPENDIX 19
Appendix 4 Size of a Waveform File (Binary data)
APPENDIX 26
Appendix 5 Size of a Waveform File (Reference value
of text data)
Appendix 6 FFT File Size
APPENDIX 28
APPENDIX 30
Appendix 7 Real-Time Save Files Size (Memory data)
Appendix 8 Waveform Viewer (Wv)
Appendix 8.1 Starting the Waveform Viewer
APPENDIX 33
Appendix 8.2 Waveform Viewer Menus
Appendix 8.3 Using the Waveform Viewer
Appendix 8.4 Conversion to CSV Format APPENDIX 39
Appendix 8.5 Batch Conversion APPENDIX 40
APPENDIX 31
APPENDIX 32
APPENDIX 34
APPENDIX 36
Index INDEX 1
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Introduction
Thank you for purchasing the HIOKI "8841/42 MEMORY HiCORDER."
To obtain maximum performance from the product, please read this manual
first, and keep it handy for future reference.
Inspection
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
i
Power cord 1 9231 RECORDING PAPER 1
Protective cover 1 Roll paper attachment 2
PC card protector 1 Connector cable label 1
Instruction Manual 1 Application Disk (CD-R) 1
Options
Input units
Cards
8936 ANALOG UNIT
8937 VOLTAGE/TEMP UNIT
8938 FFT ANALOG UNIT
8939 STRAIN UNIT
8940 F/V UNIT
*1
8946 4 ch ANALOG UNIT
8947 CHARGE UNIT
9557 RS-232C CARD
9558 GP-IB CARD
9559 PRINTER CARD
9578 10BASE-T LAN CARD
9607 MO UNIT (with eject pin)
9608 MEMORY BOARD (24M-WORD）total 32 M words
9626 PC CARD 32M
9627 PC CARD 64M
9726 PC CARD 128M
9727 PC CARD 256M
9728 PC CARD 512M
9729 PC CARD 1G
Cables and adapter
9433 DC POWER ADAPTER
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 (isolated between BNC and BNC)
9320 LOGIC PROBE (maximum input voltage 50 V)
9321 LOGIC PROBE (maximum input voltage 250 V)
9322 DIFFERENTIAL PROBE
────────────────────────────────────────────────────
Introduction
ii
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9324 POWER CORD (for logic connector)
9325 POWER CORD (for 8940 F/V UNIT sensor connector)
9665 10:1PROBE
9666 100:1PROBE
*2
9303 PT
9318 CONVERSION CABLE (for 9270-72, 9277-79)
9319 CONVERSION CABLE (for 3273)
Clamps
3273 CLAMP ON PROBE (DC to 50 MHz)
9018-10 CLAMP ON PROBE (10 to 500 A, 40 Hz to 3 kHz)
*2
9132-10 CLAMP ON PROBE (20 to 1000 A, 40 Hz to 1 kHz)
*2
9270 CLAMP ON SENSOR (20 A, 5 Hz to 50 kHz)
*2
9271 CLAMP ON SENSOR (200 A, 5 Hz to 50 kHz)
*2
9272 CLAMP ON SENSOR (20/200 A
9277 UNIVERSAL CLAMP ON CT (20 A, DC to 100 kHz)
9278 UNIVERSAL CLAMP ON CT (200 A, DC to 100 kHz)
*2
9279 UNIVERSAL CLAMP ON CT (500 A, DC to 20 kHz)
*2
9555 SENSOR UNIT (used with the 9270 to 9272, and the 9277 to 9279)
Others
8910 CAN ADAPTER
9333 LAN COMMUNICATOR
9335 WAVE PROCESSOR
9397-01 CARRYING CASE (for 8841)
9349 CARRYING CASE (for 8842)
9231 RECORDING PAPER (6 rolls)
*2
220H PAPER WINDER
*1: Only used with 8841/ *2: no CE marking
NOTE
The 9270 to 9272 CLAMP ON SENSORs and 9277 to 9279 UNIVERSAL
CLAMP ON CTs are designed for use only with the 9555 SENSOR UNIT,
and cannot be used alone.
,5Hzto10kHz)
────────────────────────────────────────────────────
Inspection
iii
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Safety 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.
DANGER
Safety symbols
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.
In the manual, the symbol indicates particularly important
information that the user should read before using the product.
The symbol printed on the product indicates that the user
should refer to a corresponding topic in the manual (marked with
the symbol) before using the relevant function.
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.
────────────────────────────────────────────────────
Safety Notes
iv
────────────────────────────────────────────────────
The following symbols are used in this Instruction Manual to indicate the
relative importance of cautions and warnings.
DANGER
Indicates that incorrect operation presents extreme danger of
accident resulting in death or serious injury to the user.
WARNING
Indicates that incorrect operation presents significant danger of
accident resulting in death or serious injury to the user.
CAUTION
NOTE
Indicates that incorrect operation presents possibility of injury
to the user or damage to the equipment.
Denotes items of advice related to performance of the
equipment or to its correct operation.
Measurement categories (Overvoltage categories)
This instrument conforms to the safety requirements for CAT II (370 V)
measurement products (using with the 8936 ANALOG UNIT).
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
Ⅰ
Secondary electrical circuits that are connected to a wall outlet through a
transformer or similar device.
CAT
Ⅱ
Primary electrical circuits in equipment connected to a wall outlet via a
power cord (portable tools, household appliances, etc.)
CAT
Ⅲ
Primary electrical circuits of heavy equipment (fixed installations)
connected directly to the distribution panel, and feeders between the
distribution panel and outlets.
CAT
Ⅳ
The circuit from the service drop to the service entrance, then to the
power meter and to the primary overcurrent protection device.
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.
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Safety Notes
v
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Notes on Use
In order to ensure safe operation and to obtain maximum performance from
the unit, observe the cautions listed below.
Inspection before Use
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.
DANGER
Power Supply Connections
Before connecting the unit, make sure that the power supply
voltage matches the rated power supply voltage of the unit.
Probe Connection, Measurement Voltage Input
Maximum input voltage ratings for the input unit and the input terminals
of the unit 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 input unit (voltage
between input terminals and main unit frame ground, and between
inputs of other analog 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 with the 8936 or 8938, always
connect the probe to the secondary side of the circuit breaker.
Connection to the primary side involves the risk of electric shock
and damage to the unit.
Always use the supplied connector cables. Any exposed metal
sections in a connector cable consist a risk of electric shock.
The logic units all have and the unit have a common ground.
The external I/O terminal and the unit have a common GND.
Input/output terminal Maximum input voltage Maximum rated voltage to earth
8936 (input) 400 VDC max. 370 VAC/DC
8937 (input) 30 Vrms or 60 VDC 30 Vrms or 60 VDC
8938 (input) 400 VDC max. 370 VAC/DC
8939 (input) 10 VDC max. 30 Vrms or 60 VDC
8940 (input) 30 Vrms or 60 VDC
(BNC/sensor connector terminal)
8946 (input) 30 Vrms or 60 VDC 30 Vrms or 60 VDC
8947 (input)
*1: The maximum allowable charge that can be applied to the miniature connection terminals is 500 pC at the most
sensitive of the six ranges, and 50,000 pC at the least sensitive range.
────────────────────────────────────────────────────
*1
30 Vrms or 60 VDC (BNC terminal) 30 Vrms or 60 VDC (BNC terminal)
30 Vrms or 60 VDC (BNC terminal)
Not insulated (Sensor connector terminal)
Notes on Use
vi
────────────────────────────────────────────────────
Input/output terminal Maximum input voltage Maximum rated voltage to earth
9322
EXT TRIG/ START・STOP/
PRINT/ EXT SMPL
TRIG OUT/ GO/ NG
2000 VDC, 1000 VAC (CAT II)
600 VAC/DC (CAT III)
-5 to +10 VDC
-20 V to +30 VDC
500 mA max./ 200 mW max.
When using grabber clips
1500 VAC/DC (CAT II), 600 VAC/DC (CAT III)
When using alligator clips
1000 VAC/DC (CAT II), 600 VAC/DC (CAT III)
Not insulated
DANGER
Logic Probe Connection
The logic input and 8841/42 Unit share a common ground. Therefore, if
power is supplied to the measurement object of the logic probe and to
the 8841/42 from different sources, an electric shock or damage to the
equipment may result. Even if power is supplied from the same system,
if the wiring is such that a potential difference is present between the
grounds, current will flow through the logic probe so that the
measurement object and 8841/42 could be damaged. We therefore
recommend the following connection method to avoid this kind of
result. Refer to Section 2.5, "Logic Probe Connection" for details.
(1) Before connecting the logic probe to the measurement object, be sure
that power is supplied from the same outlet box to the measurement
object and the 8841/42 using the supplied power cord.
(2) Before connecting the logic probe to the measurement object,
connect the ground of the measurement object to the 8841/42
ground terminal. Also in this case, power should be supplied from
the same source. Refer to Section 2.2, "Power Supply and Ground
Connections" for grounding terminal details.
Replacing the Input Units
In order to avoid accidents from electric shock, before removing or
replacing an input unit, check that the connector cables and
thermocouple are disconnected, turn off the power, and remove the
power cable.
Normally keep all input units installed permanently. If a unit is not
fitted, it must be replaced by a blanking panel. If the unit is
operated with an input unit not in place it poses a shock hazard.
Differential Probe Connection
When using grabber clips, the 9322's maximum rated voltage to
earth is 1500 VAC/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.
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Notes on Use
vii
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WARNING
Installation Environment
To avoid electric shock, do not allow the product to get wet, and do
not use it when your hands are wet.
Grounding the Unit
The unit is constructed so as to be connected to a ground line via a
three-core power cord that is supplied with the unit. In order to
avoid electric shock, connect the unit to a properly grounded (3-pin)
outlet using the power cord provided.
Before Powering on
Check that the power supply is correct for the rating of the unit.
(The AC fuse is integrated in the unit.)
Usage Precautions for the Internal MO Drive (option)
Please do not attempt to disassemble the MO drive.
Laser radiation can be emitted when the MO drive is open. Avoid
looking directly into the laser when the MO drive is open. Maximum
laser output is 50 mW (at 685 nm, pulsed).
A laser warning label is attached to the bottom of the 8841/42 Unit.
Refer to Section 1.2, "Identification of Controls and Indicators" for
the label location.
CAUTION
Installation Environment
This product should be installed and operated indoors only, between 5
o
C and 35% to 80%RH.
to 40
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.
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.
Using a printer
Using the printer in a high-temperature or high-humidity environment
should be avoided at all costs. This can seriously reduce the printer life.
Using the connecting cables
Use only the specified connection cable. Using a non-specified cable
may result in incorrect measurements due to poor connection or other
reasons.
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.
Printing is not possible if the recording paper is loaded wrong-side up.
(Refer to Section 2.8, "Loading Recoding Paper.")
o
C
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Notes on Use
viii
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CAUTION
Storing
When the unit is not to be used for an extended period, set the head
up/down lever to the "head up" position. This will protect the printer head
and prevent deformation of the rubber roller.
Precautions on carrying this equipment
The terminal guard of the equipment protects the inputs. Do not hold this
guard when carrying the equipment. To carry this equipment, use the
handle. See Section 1.2.
Shipping
Remove the printer paper from the unit. If the paper is left in the unit,
･
paper support parts may be damaged due to vibrations.
Remove the PC card, floppy disk, MO disk and SCSI cable from the unit.
･
If reshipping the unit, preferable use the original packing.
･
Do not transport using the 9397-01 or 9349 CARRYING CASEs.
･
Others
In the event of problems with operation, first refer to Section 20.5,
･
"Troubleshooting".
Carefully read and observe all precautions in this manual.
･
Handling the CD-R
Always hold the disc by the edges, so as not to make fingerprints on the
･
disc or scratch the printing.
Never touch the recorded side of the disc. Do not place the disc directly
･
on anything hard.
Do not wet the disc with volatile alcohol or water, as there is a possibility
･
of the label printing disappearing.
To write on the disc label surface, use a spirit-based felt pen. Do not use
･
a ball-point pen or hard-tipped pen, because there is a danger of
scratching the surface and corrupting the data. Do not use adhesive
labels.
Do not expose the disc directly to the sun's rays, or keep it in conditions
･
of high temperature or humidity, as there is a danger of warping, with
consequent loss of data.
To remove dirt, dust, or fingerprints from the disc, wipe with a dry cloth,
･
or use a CD cleaner. Always wipe radially from the inside to the outside,
and do no wipe with circular movements. Never use abrasives or solvent
cleaners.
Hioki shall not be held liable for any problems with a computer system
･
that arises from the use of this CD-R, or for any problem related to the
purchase of a Hioki product.
────────────────────────────────────────────────────
Notes on Use
ix
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Chapter Summary
Chapter 1 Product Overview
Contains an overview of the unit and its features.
Chapter 2 Installation and Preparation
Explains how to set the unit up for measurement.
Chapter 3 Basic Key Operation
Explains how to operate the keys and the Jog/Shuttle control for carrying out
basic measurement functions.
Chapter 4 Memory Recorder Function
Explains how to use the memory recorder functions of the unit.
Chapter 5 Recorder Function
Explains how to use the recorder functions of the unit.
Chapter 6 RMS Recorder Function
Explains how to use the RMS recorder functions of the unit.
Chapter 7 Recorder and Memory Recorder Function
Explains how to use the recorder and memory recorder functions of the unit.
Chapter 8 FFT Function
Explains how to use the FFT functions of the unit.
Chapter 9 Input Channel Settings
Explains how to make settings using the channel setting screen.
Chapter 10 Trigger Functions
Explains how to use the trigger functions of the unit.
Chapter 11 Waveform Display Screen Operation
Explains how to perform waveform scrolling, how to use the A･B cursors
and so.
Chapter 12 SYSTEM Screen Settings
Explains how to make settings using the system setting screen.
Chapter 13 Printout of Measurement Data
Explains how to print out measurement data and how to read printed charts.
Chapter 14 Storing Measurement Data
Explains how to store, recall, and delete measurement data and measurement
settings.
Chapter 15 Memory Segmentation Function
Explains how to use the Memory Segmentation Function.
────────────────────────────────────────────────────
Chapter Summary
x
────────────────────────────────────────────────────
Chapter 16 Waveform Operation Function
Explains how to use the Calculating, Waveform Parameters/Evaluating
Parameter value and Waveform GO/NG Evaluation.
Chapter 17 External Input/ Output Terminals/ Key Lock Function
Gives specifications and usage details of the external input/output terminals,
and explains how to use the key lock function.
Chapter 18 Specifications
Contains general specifications and detailed function specifications.
Chapter 19 Logic and Analog Inputs
Contains specifications and precautions for logic input section and input
amplifier units.
Chapter 20 Maintenance and Service
Describes maintenance procedures.
Appendix
Contains information that is necessary for using this unit, including a
description of error messages, a glossary, and an explanation how to increase
memory.
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Chapter Summary
1
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Chapter 1
1
2
1.1 Major Features
(1) Waveform recording performance
For the 8841, using the 8946 4ch ANALOG UNIT, waveform recording can
be performed in up to 16 channels with 12-bit resolution (8841).
With the 8842, waveform recording can be performed for up to 16 channels
at 12-bit resolution, for any combination of input units.
(2) Vertical display
The 10.4-inch vertically-mounted TFT color LCD display has a resolution of
640×480 dots.
Product Overview
3
4
5
6
7
8
(3) Five functions
Memory recorder with up to 1μs (all channels simultaneously) sampling
・
period.
Real-time recording capability to paper in recorder function
・
RMS recorder function for recording rms values of AC power supply lines
・
and DC sources.
Recorder & Memory Recorder function provides combined recorder and
・
memory recorder functions
FFT function offers 12 types of analysis functions
・
(4) Storage capacity
The 8841/8842 has a standard storage capacity of 8 M words, expandable to
32 M words with memory upgrades.
(5) Trigger function
Digital trigger circuit
・
Trigger types: level trigger, window-in trigger, window-out trigger, voltage
・
drop trigger, RMS level trigger, period trigger, logic trigger (pattern trigger)
9
10
11
12
13
14
A
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1.1 Major Features
2
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(6) Simple function key interface (GUI)
Thanks to its GUI-inspired design using large function key graphics, the unit
is easy to set up and operate.
(7) On-line help
On-line help guides the user through operation steps and various functions.
(8) Scaling function
By setting the physical amount and the unit to be used for 1 V input, the
measurement result can be converted into any desired scale.
(9) Additional recording function
When enabled, the memory is regarded as printer paper.
(10) Input units
The analog inputs are floating, and so each input can be connected to its
own independent potentials.
Select input units suitable for measurements.
(11) Built-in thermal printer
Thermosensitive recording method using a thermal line head
・
The built-in printer delivers waveform printouts on the spot.
The printer can also be used to print screen shots and parameter information.
・
Report print (A4 size) can be printed.
(12) External storage means
The waveform data and/or setup conditions can be stored on a floppy disk,
MO disk, or PC card (SRAM, flash ATA, or HDD card).
(13) SCSI interfaces
If a MO drive is connected to the SCSI interface, the waveform data and/or
setup conditions can be stored on a MO disk.
(14) GP-IB, RS-232C, and LAN (10BASE-T) interface
Remote control including input unit is possible.
(15) External print
If a color printer is connected to the printer card, the data can be printed in
color.
(16) Dual-language capability
Display language is switchable between Japanese and English.
────────────────────────────────────────────────────
1.1 Major Features
3
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1.2 Identification of Controls and Indicators
1
(example: 8841)
4 5
1 2
3 6
2
3
19
20
21
22
23
24
25
7
8
9
10
11
12
13
14
4
5
6
7
15
8
1
STATUS key
2
CHAN key
3
DISP key
4
SYSTEM key
5
TRIG key
26 27 28
Front Panel
Causes the display to show the STATUS screen which serves for setting
most measurement parameters.
Causes the display to show the CHANNEL or Variable screen which serves
for making input channel settings.
Causes the display to show measurement and analysis results.
Causes the display to show the SYSTEM screen which serves for making
system-wide settings such as for the scaling function.
Causes the display to show the TRIGGER screen. Setting the trigger
functions.
16
17
18
9
10
11
12
13
14
A
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1.2 Identification of Controls and Indicators
4
────────────────────────────────────────────────────
6
FILE key
Causes the display to show the FILE screen which serves for reading,
storing, etc. the waveform data etc.
7
PRINT key
Serves to print out stored waveforms.
Output destination can be set on the SYSTEM4 screen.
8
COPY key
Serves to print out a hard copy of the current screen display.
Copy destination can be set on the SYSTEM4 screen
9
FEED key
10
VALUE key
11
WAVE key
12
A･BCSRkey
13
Jog
Causes the printer paper to advance for as long as the key is pressed.
Uses to select the numerical values setting.
Uses to select the the waveform scrolling.
Uses to select the the A･B cursor moving.
Rotary control knob that serves to change values, move the A･B cursors,
and scroll the waveform.
14
Shuttle
Concentric ring that serves to change values, move the A･B cursors, and to
scroll the waveform. The speed of movement is proportional to the rotation
angle.
15
CURSOR key
16
STOP key
These keys serve to move the flashing cursor in the four directions.
Stops measurement and analysis.
Pressing this key twice stops measurement.
17
START key
Initiates the measurement and analysis. During measurement, the LED
above the key is lit.
18
TIME/DIV key
19
MANU TRIG key
20
CH.SET key
Serves to set the speed for inputting and storing the input signal.
Serves to cause manual triggering.
Sets the input channel on the display screen
Toggles the screen among those for analog channels (1 to 16) and logic
channels (A to D).
21
LEVEL MONl key
22
VIEW key
Serves to check the input signal level.
Serves to indicate the position of the currently displayed screen information
in relation to the entire recording length.
Call up information about the status of memory block.
23
AUTO key
Pressing this key activates automatic setting of time axis range and voltage
range values of input waveform.
24
HELP key
25
F1 to F5 key
26
Channel select/
input value keys
Provides on-line help.
Serve to select setting items.
Selects channel or sets numerical value
27
RANGE knob
28
POSITION knob
────────────────────────────────────────────────────
1.2 Identification of Controls and Indicators
Sets the measurement range for the channel.
Sets the zero position for the channel.
5
────────────────────────────────────────────────────
1
2
3
4
1
AC power switch
2
AC connector
3
Function ground terminal
(GND)
5
20
6
7
8
9
1
2
3
4
18
19
5
10
Right Side Panel
Switches on or off the AC power supply.
The supplied power cord must be plugged in here.
Connects to the earth.
11
12 13
14
15
17
16
6
7
4
DC connector
5
Logic probe connectors
6
Input unit slots
7
Fastening screw
8
Analog input connector
9
FD slot
10
SCSI connector
11
PC card slot
12
Eject button
13
External start/stop
terminals
14
External print terminal
15
GO evaluation output
terminal
16
NG evaluation output
terminal
17
Ground terminal (GND)
18
External sampling terminal
19
Trigger terminals
20
Blowing slot
Connects to the optional 9433 DC POWER ADAPTER.
Input connector for the logic input section, designed for the
dedicate logic probes (CH A to D).
These slots accept input units.
Secures the plug-in unit.
Unbalanced analog input. (on ANALOG UNIT)
Floppy disk is inserted.
An MO drive can be connected.
Inserts the PC card.
Removes the PC card.
Start and stop operation can be controlled.
Print operation can be controlled.
When the waveform evaluation has resulted in GO, a signal is
output from this terminal.
When the waveform evaluation has resulted in NG, a signal is
output from this terminal.
Uses with⑬to⑲(except⑰)terminals.
Allows input of an external sampling signal. (in Memory recorder
and FFT functions)
Can be used to synchronize multiple units, using the EXT TRIG
input and TRIG OUT output.
8
9
10
11
12
13
14
A
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1.2 Identification of Controls and Indicators
6
────────────────────────────────────────────────────
2 23 1 2
Left Side Panel
4
2
5
Upper Panel
Bottom Panel
Rear Panel
1
Handle
2
Ventilation slots
3
Printer
4
Stand
5
Laser warning label (when the 9607 MO UNIT is installed)
────────────────────────────────────────────────────
1.2 Identification of Controls and Indicators
Serves for transporting the 8841/42.
The unit can also be propped up at an angle using the stand.
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