Hioki 8846 User manual

MEMORY HiCORDER
INSTRUCTION MANUAL
8846

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Contents
Introduction i
Inspection ii
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 3
Chapter 2 Specifications 11
2.1 General Specifications 11
2.2 Trigger Unit Specifications 14
2.3 Memory Recorder Function Specifications 15
2.4 Recorder Function Specifications 16
2.5 FFT Function Specifications 17
2.6 Auxiliary Functions Specifications 18
2.7 Accessories and Options 21
2.8 System Operation 22
Chapter 3 Logic and Analog Inputs 23
3.1 Logic Inputs 23
3.1.1 Logic Probes 24
3.2 8916 ANALOG UNIT 25
3.2.1 Specifications 25
3.2.2 Safety Requirements 26
3.3 8917 DC/RMS UNIT 27
3.3.1 Specifications 27
3.3.2 Safety Requirements 28
3.4 8918 TEMPERATURE UNIT 29
3.4.1 Specifications 29
3.4.2 Safety Requirements 30
3.4.3 Notes on Installation Site 31

3.5 8919 FFT ANALOG UNIT 32
3.5.1 Specifications 32
3.5.2 Safety Requirements 33
3.6 8927 ANALOG UNIT 34
3.6.1 Specifications 34
3.6.2 Safety Requirements 35
3.7 8928 STRAIN UNIT 36
3.7.1 Specifications 36
3.7.2 Safety Requirements 37
3.7.3 Strain Unit Settings 37
3.8 Replacement Procedure 38
3.9 Input Cables 39
3.10 Measurement Errors Caused by Signal Source Internal
Resistance 40
Chapter 4 Installation and Preparation 41
4.1 Installation of the Unit 41
4.2 Power Supply and Ground Connection 44
4.3 Power On/Off 47
4.4 Probe and Thermocouple Connection 48
4.5 Connection to a Strain Gauge Adapter 51
4.6 Connecting the Voltage Transformer 52
4.7 Loading Recoding Paper 54
4.8 Storage and Handling Precautions 56
4.9 Notes on Measurement 57
Chapter 5 Basic Operation and Measurement 59
5.1 Basic Operation 59
5.1.1 Basic Display Operation 59
5.1.2 JOG/SHUTTLE Control and Select Key 60
5.1.3 Setting Items 62
5.1.4 Measurement Start and End 62
5.2 Basic Measurement and Setting Procedures 63
5.2.1 Measuring and Recording a Voltage
(Memory Recorder, Recorder) 63
5.2.2 Frequency Analysis of Measured Voltage (FFT) 74

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Chapter 6 Memory Recorder Function 81
6.1 Outline 81
6.2 Making Settings 83
6.2.1 Setting the Function Mode 83
6.2.2 Setting the Time Axis Range 84
6.2.3 Setting the Recording Length 85
6.2.4 Setting the Format 86
6.2.5 Using the X-Y Waveform Plots 90
6.2.6 Setting the Interpolation Function 93
6.2.7 Setting the Roll Mode 94
6.2.8 Superimpose 95
6.2.9 Other Settings (STATUS Screen) 96
6.3 Settings on the Display Screen and Auto Settings 98
6.3.1 Setting Magnification/Compression Along the Time Axis 98
6.3.2 Making Channel Settings 99
6.3.3 Automatic Setting of Time Axis and Voltage Axis 100
6.4 Start and Stop Measurement Operation 102
Chapter 7 Recorder Function 105
7.1 Outline 105
7.2 Making Settings 106
7.2.1 Setting the Function Mode 106
7.2.2 Setting the Time Axis Range 107
7.2.3 Setting the Magnification Along the Time Axis 109
7.2.4 Setting the Recording Time 112
7.2.5 Setting the Format 113
7.2.6 Setting the Interpolation Function 116
7.2.7 Setting the Recording Medium 117
7.2.8 Recording a Voice Memo 118
7.2.9 Transferring Data to the Memory Recorder Function 119
7.2.10 Other Settings 121
7.3 Settings on the Display Screen and Auto Settings 123
7.3.1 Making Channel Settings 123
7.3.2 Automatic Setting of Time Axis and Voltage Axis 123
7.4 Start and Stop Measurement Operation 125

Chapter 8 FFT Function 127
8.1 Outline 127
8.2 Item Settings 128
8.2.1 Setting the FFT Function 128
8.2.2 Setting the FFT Channel Mode 129
8.2.3 Setting the Frequency Range 130
8.2.4 Setting the Window Function 132
8.2.5 Setting the Display Format 134
8.2.6 Selecting Reference Data 136
8.2.7 Setting the Peak Display 138
8.2.8 Setting the FFT Analysis Mode 140
8.2.9 Setting the Analysis Channel 141
8.2.10 Setting the X-axis and Y-axis Displays 142
8.2.11 Setting the Display Scale 144
8.2.12 Octave Filter Setting 146
8.2.13 Setting the Interpolation Function 147
8.2.14 Other Settings 148
8.3 Analysis Function 150
8.3.1 Storage Waveform [STR] 151
8.3.2 Linear Spectrum [LIN] 152
8.3.3 RMS Spectrum [RMS] 154
8.3.4 Power Spectrum [PSP] 156
8.3.5 Auto Correlation [ACR] 158
8.3.6 Histogram [HIS] 159
8.3.7 Transfer Function [TRF] 160
8.3.8 Cross Power Spectrum [CSP] 162
8.3.9 Cross Correlation [CCR] 164
8.3.10 Unit Impulse Response [IMP] 166
8.3.11 Coherence [COH] 168
8.3.12 Octave Analysis [OCT] 170

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Chapter 9 Input Channel Settings 175
9.1 Overview 175
9.2 Selecting Units (SYSTEM Screen) 176
9.3 Selecting Functions 177
9.4 Selecting the Input Type 178
9.5 Making Logic Input Settings (FFT Excluded) 180
9.6 Making Analog Input Settings 181
9.6.1 Waveform Display Color (FFT Excluded) 181
9.6.2 Display Graph Type (FFT Excluded) 183
9.6.3 Setting the Voltage Axis, Temperature Axis, Strain Axis
Ranges 184
9.6.4 Setting the Input Coupling (Not Required for 8918, 8928) 187
9.6.5 Setting Voltage Axis, Temperature Axis, and Strain Axis
Magnification/ Compression 188
9.6.6 Setting the Zero Position 189
9.6.7 Setting the Low-Pass Filter 191
9.6.8 Setting the Thermocouple Type (8918 Only) 192
9.6.9 Setting the Antialiasing Filter (8919 Only) 193
9.6.10 Arbitrary Setting if Voltage Axis Magnification/
Compression and Display Range 195
9.6.11 Copying Channel Settings 197
9.6.12 Making Channel Settings on Display Screen 198
Chapter 10 Trigger Functions 199
10.1 Overview 199
10.2 Setting the Trigger Mode 200
10.3 Setting Trigger Source AND/OR Linking 201
10.4 Setting the Pretrigger (Memory recorder, FFT) 202
10.5 Using the Analog Trigger Function 204
10.5.1 Level Trigger 205
10.5.2 Window-In, Window-Out Trigger 208
10.6 Using the Logic Trigger Function 210
10.7 Using the External Trigger Function 214
10.8 Using the Timer Trigger Function 215
10.9 Trigger Output Connector 218

Chapter 11 SYSTEM Screen Settings 219
11.1 Overview 219
11.2 How to Use the SYSTEM Screen 220
11.3 Initialization [ INITIALIZE ] 221
11.3.1 Setting the Clock [ TIME SET ] 221
11.3.2 Clear Waveform Data [ DATA CLEAR ] 222
11.3.3 System Reset [ SYSTEM RESET ] 223
11.4 Special Function Settings [ SETUP ] 226
11.4.1 Channel Selection [ using unit ] 227
11.4.2 Start Key Backup [ start backup ] 228
11.4.3 Setting the Grid [ grid type ] 229
11.4.4 Channel Marker Function [ channel marker ] 231
11.4.5 Time Axis Display [ time axis ] 232
11.4.6 List and Gauge Functions [ list & gauge ] 233
11.4.7 Backlight Saver Function [ backlight saver ] 234
11.4.8 Setting Screen Colors [ LCD color type ] 235
11.4.9 Setting the Volume [ volume ] 236
11.4.10 Intermittent Printing [ intermittent print ] 237
11.4.11 Selecting the Hard Copy Destination 238
11.4.12 Setting the Display Language 239
11.5 Scaling Function [ SCALING ] 240
11.5.1 Conversion Ratio Scaling 241
11.5.2 2-Point Scaling 242
11.5.3 Scaling Setting Example 245
11.6 Adding Comments to a Graph [ COMMENT ] 247
11.6.1 Comment and File Name Entry Procedure 248
11.7 Self Check 249
11.7.1 ROM/RAM Check 250
11.7.2 LED Check 251
11.7.3 Printer Check 252
11.7.4 Key Check 253
11.7.5 Display Check 254
11.7.6 MO Check 255
11.7.7 D/A Unit Output Check 256
11.8 Interface Settings 257

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Chapter 12 Printout of Waveform Data and Processing
Data 259
12.1 Overview 259
12.2 Selecting Waveform or Numeric Print 260
12.3 Using the Smooth Print Function 262
12.4 Print Settings on SYSTEM Screen 263
12.5 Printing Procedure 264
12.5.1 Normal Print (Manual) (All Functions) 264
12.5.2 Normal Print (Auto) (Memory Recorder, FFT) 266
12.5.3 Real-Time Print (Recorder Function) 267
12.5.4 Partial Print (Memory Recorder, Recorder) 269
12.5.5 Screen Hard Copy (All Functions) 271
12.5.6 A4 Print (Memory Recorder, Recorder) 272
12.5.7 List Print (All Functions) 273
12.5.8 Paper Change During Printing 274
12.6 Reading the Display and Printout 275
Chapter 13 Storing Data on DDS Tape/Reading Data
From DDS Tape 283
13.1 Overview 283
13.2 About the MO Disk 284
13.3 MO Drive Operation 285
13.4 Displaying File List and File Information 287
13.4.1 Displaying a File List 287
13.4.2 Displaying File Information 288
13.5 Storing Data on a MO Disk 289
13.5.1 Storing Memory Recorder and FFT Data 289
13.5.2 Storing Recorder Data 295
13.5.3 Automatic File Name Assignment 297
13.5.4 File Contents and Size 298
13.6 Reading Data From MO Disk 302
13.6.1 Reading Stored Data 302
13.6.2 Playback of Stored Data 304
13.7 Recording the Recorder Waveform Data Stored on MO
in Memory Recorder Function/FFT Function
(FILEtoMEM/FFTT) 309
13.8 Deleting Stored Data (directory and file deleting) 311

13.9 Renaming File (file name and directory name) 313
13.10 Operating the Disk/ Deleting the Window (HELP key) 314
13.10.1 Creating a Directory 316
13.10.2 Searching file 317
13.10.3 Sorting files 319
13.10.4 Formatting a MO Disk 320
13.10.5 Formatting a MO Disk Physically (Physical Format) 321
Chapter 14 Calculating Waveform Data 323
14.1 Overview 323
14.2 Preparing for Waveform Processing 324
14.3 Defining the Processing Equation 326
14.3.1 Entering the Equation 326
14.3.2 Deleting an Equation 329
14.3.3 Copying an Equation 330
14.4 Setting the Channel for Recording Processing Results 331
14.5 Setting the Display Scale 332
14.6 Specifying the Waveform Processing Range 333
14.7 Setting Example for Waveform Processing 334
14.8 Details on Operators 337
Chapter 15 Determining Waveform
Parameters / EvaluatingParameter Values 343
15.1 Overview 343
15.2 Making Settings for Waveform Parameter Calculation 344
15.3 Making Settings for Waveform Parameter Evaluation 348
15.4 Using the NG Output 351
15.5 Specifying a Range for Waveform Parameter Calculation 352
15.6 Printing Out Waveform Parameter Calculation Results 353
15.7 Waveform Parameter Calculation and Waveform
Parameter Evaluation Examples 354
15.8 Parameter Calculation Details 357