INSTRUCTION MANUAL
8846
MEMORY HiCORDER
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
1
2
3
4
5
6
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
3.2 8916 ANALOG UNIT 25
3.2.1 Specifications
3.2.2 Safety Requirements
3.3 8917 DC/RMS UNIT 27
3.3.1 Specifications
24
25
26
27
7
8
9
10
11
12
13
3.3.2 Safety Requirements
3.4 8918 TEMPERATURE UNIT 29
3.4.1 Specifications
3.4.2 Safety Requirements
3.4.3 Notes on Installation Site
28
29
30
31
14
A
3.5 8919 FFT ANALOG UNIT 32
3.5.1 Specifications
3.5.2 Safety Requirements
32
33
3.6 8927 ANALOG UNIT 34
3.6.1 Specifications
3.6.2 Safety Requirements
34
35
3.7 8928 STRAIN UNIT 36
3.7.1 Specifications
3.7.2 Safety Requirements
3.7.3 Strain Unit Settings
36
37
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
5.1.2 JOG/SHUTTLE Control and Select Key
5.1.3 Setting Items
5.1.4 Measurement Start and End
5.2 Basic Measurement and Setting Procedures 63
59
60
62
62
5.2.1 Measuring and Recording a Voltage
(Memory Recorder, Recorder)
5.2.2 Frequency Analysis of Measured Voltage (FFT)
63
74
Chapter 6 Memory Recorder Function 81
6.1 Outline 81
1
6.2 Making Settings 83
6.2.1 Setting the Function Mode
6.2.2 Setting the Time Axis Range
6.2.3 Setting the Recording Length
6.2.4 Setting the Format
6.2.5 Using the X-Y Waveform Plots
6.2.6 Setting the Interpolation Function
6.2.7 Setting the Roll Mode
6.2.8 Superimpose
6.2.9 Other Settings (STATUS Screen)
6.3 Settings on the Display Screen and Auto Settings 98
6.3.1 Setting Magnification/Compression Along the Time Axis
6.3.2 Making Channel Settings
6.3.3 Automatic Setting of Time Axis and Voltage Axis
6.4 Start and Stop Measurement Operation 102
83
84
85
86
90
93
94
95
96
98
99
100
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3
4
5
6
7
Chapter 7 Recorder Function 105
7.1 Outline 105
7.2 Making Settings 106
7.2.1 Setting the Function Mode
7.2.2 Setting the Time Axis Range
7.2.3 Setting the Magnification Along the Time Axis
7.2.4 Setting the Recording Time
7.2.5 Setting the Format
7.2.6 Setting the Interpolation Function
7.2.7 Setting the Recording Medium
7.2.8 Recording a Voice Memo
7.2.9 Transferring Data to the Memory Recorder Function
7.2.10 Other Settings
7.3 Settings on the Display Screen and Auto Settings 123
7.3.1 Making Channel Settings
7.3.2 Automatic Setting of Time Axis and Voltage Axis
106
107
109
112
113
116
117
118
119
121
123
123
8
9
10
11
12
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14
7.4 Start and Stop Measurement Operation 125
A
Chapter 8 FFT Function 127
8.1 Outline 127
8.2 Item Settings 128
8.2.1 Setting the FFT Function
8.2.2 Setting the FFT Channel Mode
8.2.3 Setting the Frequency Range
8.2.4 Setting the Window Function
8.2.5 Setting the Display Format
8.2.6 Selecting Reference Data
8.2.7 Setting the Peak Display
8.2.8 Setting the FFT Analysis Mode
8.2.9 Setting the Analysis Channel
8.2.10 Setting the X-axis and Y-axis Displays
8.2.11 Setting the Display Scale
8.2.12 Octave Filter Setting
8.2.13 Setting the Interpolation Function
8.2.14 Other Settings
128
129
130
132
134
136
138
140
141
142
144
146
147
148
8.3 Analysis Function 150
8.3.1 Storage Waveform [STR]
151
8.3.2 Linear Spectrum [LIN]
8.3.3 RMS Spectrum [RMS]
8.3.4 Power Spectrum [PSP]
8.3.5 Auto Correlation [ACR]
8.3.6 Histogram [HIS]
8.3.7 Transfer Function [TRF]
8.3.8 Cross Power Spectrum [CSP]
8.3.9 Cross Correlation [CCR]
8.3.10 Unit Impulse Response [IMP]
8.3.11 Coherence [COH]
8.3.12 Octave Analysis [OCT]
152
154
156
158
159
160
162
164
166
168
170
1
Chapter 9 Input Channel Settings 175
9.1 Overview 175
1
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)
9.6.2 Display Graph Type (FFT Excluded)
9.6.3 Setting the Voltage Axis, Temperature Axis, Strain Axis
Ranges
9.6.4 Setting the Input Coupling (Not Required for 8918, 8928)
9.6.5 Setting Voltage Axis, Temperature Axis, and Strain Axis
Magnification/ Compression
9.6.6 Setting the Zero Position
9.6.7 Setting the Low-Pass Filter
9.6.8 Setting the Thermocouple Type (8918 Only)
9.6.9 Setting the Antialiasing Filter (8919 Only)
9.6.10 Arbitrary Setting if Voltage Axis Magnification/
181
183
184
187
188
189
191
192
193
2
3
4
5
6
7
8
Compression and Display Range
9.6.11 Copying Channel Settings
9.6.12 Making Channel Settings on Display Screen
195
197
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
10.5.2 Window-In, Window-Out Trigger
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
205
208
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11
12
13
14
15
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
11.3.2 Clear Waveform Data
11.3.3 System Reset
[ TIME SET ] 221
[ DATA CLEAR ] 222
[ SYSTEM RESET ] 223
11.4 Special Function Settings [ SETUP ] 226
11.4.1 Channel Selection
11.4.2 Start Key Backup
11.4.3 Setting the Grid
11.4.4 Channel Marker Function
11.4.5 Time Axis Display
11.4.6 List and Gauge Functions
11.4.7 Backlight Saver Function
11.4.8 Setting Screen Colors
11.4.9 Setting the Volume
11.4.10 Intermittent Printing [ intermittent print ]
11.4.11 Selecting the Hard Copy Destination
11.4.12 Setting the Display Language
[ using unit ] 227
[ start backup ] 228
[ grid type ] 229
[ channel marker ] 231
[ time axis ] 232
[ list & gauge ] 233
[ backlight saver ] 234
[ LCD color type ] 235
[ volume ] 236
237
238
239
11.5 Scaling Function [ SCALING ] 240
11.5.1 Conversion Ratio Scaling
11.5.2 2-Point Scaling
11.5.3 Scaling Setting Example
241
242
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
11.7.2 LED Check
11.7.3 Printer Check
11.7.4 Key Check
11.7.5 Display Check
11.7.6 MO Check
11.7.7 D/A Unit Output Check
250
251
252
253
254
255
256
11.8 Interface Settings 257
11121
Chapter 12 Printout of Waveform Data and Processing
1
Data
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
12.5.2 Normal Print
12.5.3 Real-Time Print
12.5.4 Partial Print
12.5.5 Screen Hard Copy
12.5.6 A4 Print
12.5.7 List Print
12.5.8 Paper Change During Printing
12.6 Reading the Display and Printout 275
(Manual) (All Functions) 264
(Auto) (Memory Recorder, FFT) 266
(Recorder Function) 267
(Memory Recorder, Recorder) 269
(All Functions) 271
(Memory Recorder, Recorder) 272
(All Functions) 273
259
274
2
3
4
5
6
7
Chapter 13 Storing Data on DDS Tape/Reading Data
From DDS Tape
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
13.4.2 Displaying File Information
13.5 Storing Data on a MO Disk 289
13.5.1 Storing Memory Recorder and FFT Data
13.5.2 Storing Recorder Data
13.5.3 Automatic File Name Assignment
13.5.4 File Contents and Size
13.6 Reading Data From MO Disk 302
13.6.1 Reading Stored Data
8
283
9
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287
288
289
295
297
298
3
302
13.6.2 Playback of Stored Data
13.7 Recording the Recorder Waveform Data Stored on MO
in Memory Recorder Function/FFT Function
(FILEtoMEM/FFTT)
13.8 Deleting Stored Data (directory and file deleting) 311
304
309
14
15
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
13.10.2 Searching file
13.10.3 Sorting files
13.10.4 Formatting a MO Disk
13.10.5 Formatting a MO Disk Physically (Physical Format)
316
317
319
320
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
14.3.2 Deleting an Equation
14.3.3 Copying an Equation
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
326
329
330
14.7 Setting Example for Waveform Processing 334
14.8 Details on Operators 337
Chapter 15 Determining Waveform
Parameters / Evaluating
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
Parameter Values 343
1
1
1819202122232
141
Chapter 16 Waveform GO/NG Evaluation 361
16.1 Overview 361
6
16.2 Waveform Evaluation Settings 362
16.3 Creating the Evaluation Area 366
16.4 Editor Command Details 368
16.5 Using the NG Output 378
16.6 Setting Example for Waveform Evaluation 379
Chapter 17 Memory Segmentation Function 383
17.1 Overview 383
17.2 Using the Sequential Save Function 384
17.3 Using the Multi-Block Function 389
Chapter 18 Waveform Averaging 393
18.1 Overview 393
18.2 Setting the Averaging Function 395
18.2.1 When Using Memory Recorder Function
18.2.2 When Using FFT Function
395
398
7
18.3 Averaging Equations 403
Chapter 19 Using the A/B Cursors / Waveform
Scrolling
19.1 Overview 405
19.2 Using the A/B Cursors 406
19.3 Scrolling the Waveform 414
Chapter 20 LEVEL MON. / CH.SET / HELP Keys 419
20.1 Overview 419
20.2 Checking the Input Level (LEVEL MON. Key) 420
20.3 Selecting the Input Channel on the Display Screen and
L.evel Monitor Screen
20.4 Checking the Waveform Display Position (HELP Key) 425
(CH.SET Key) 422
405
4
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11
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5
APP
IND
Chapter 21 External Input/Output Connectors / Key Lock
Function
21.1 Overview 433
21.2 Using the External Start, Stop, and Print Terminals 434
21.3 Using the External Trigger Input (EXT TRIG) 436
21.4 Using the External Trigger Output (TRIG OUT) 437
21.5 Using the External Sampling Input (EXT SMPL) 438
21.6 Using the NG Evaluation Output (NG) 439
21.7 Using the Microphone Input (MIC) 441
21.8 Using the Key Lock Function 442
433
Chapter 22 Using the D/A Output Unit 9539 (Option) 443
22.1 Overview 443
22.2 Specifications 444
22.3 Usage Precautions 446
22.4 Replacing Units 447
22.5 Output of a Waveform Recorded With the Memory
Recorder or Recorder Function 448
Chapter 23 Maintenance 451
23.1 Cleaning of the Unit and Parts 451
23.2 Replacing the DC Power Supply Fuse 454
23.3 Removing the Battery Before Discarding the 8846 455
23.4 Troubleshooting 457
Chapter 24 Error and Warning Messages 459
24.1 Overview 459
24.2 Error Messages 460
24.3 Warning Messages 461
Appendix APPENDIX 1
Appendix 1 Glossary APPENDIX 1
Appendix 2 Reference APPENDIX 5
Appendix 2.1 Memory Recorder Function,
Recorder Function
Appendix 2.2 FFT Function
Appendix 3 Reference Table APPENDIX 18
APPENDIX 5
APPENDIX 8
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I
ntroduction
Thank you for purchasing this HIOKI "8846 MEMORY HiCORDER."
To get the maximum performance from the unit, please read this manual first,
and keep this at hand.
i
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Introduction
ii
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nspection
・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
□ Power cord 1
□ DC power cord 1
□ Recording paper (roll paper) 1
□ Spare fuse 1
(DC supply 10 - 30 V: class A melting fuse (NM) 12 A/250 V,
6.4 dia.×31.8 mm)
□ Instruction Manual 1
□ Protect cover 1
□ MO disk (230MB) 1
□ Recording paper attachment 2
□ Eject pin 1
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Inspection
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afety Notes
This Instruction Manual provides information and warnings essential for
operating this equipment in a safe manner and for maintaining it in safe
operating condition. Before using this equipment, be sure to carefully read the
following safety notes.
DANGE
During high voltage measurement, incorrect measurement procedures
could result in injury or death, as well as damage to the equipment.
Please read this manual carefully and be sure that you understand its
contents before using the equipment. The manufacturer disclaims all
responsibility for any accident or injury except that resulting due to
defect in its product.
Safety symbols
・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
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.
symbol) before using relevant
Indicates a grounding terminal for measurement.
Indicates a fuse.
Indicates AC (Alternating Current).
Indicates DC (Direct Current).
Indicates both DC (Direct Current) and AC (Alternating Current).
PEAK
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Indicates a peak value.
Safety Notes
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Conventions used in this manual
The following symbols are used in this Instruction Manual to indicate the
relative importance of cautions and warnings.
DANGE
WARNIN
CAUTIO
NOTE
Method
Operation
Indicates that incorrect operation presents extreme danger of
accident resulting in death or serious injury to the user.
Indicates that incorrect operation presents significant danger of
accident resulting in death or serious injury to the user.
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.
Symbols used for setting and operating steps
Indicates a setting or operating procedure. Follow the numbered
sequence and perform the indicated steps.
Step
Referenc
Exampl
Bold character)
[]
Additional information about setting and operating procedures.
Indicate practical examples for setting and operating procedures.
Example
Set to FFT
( Section ..)
F1
[ FFT ]
ndicates display items or selection item
ndicates sections for reference.
ndicates operation keys.
ndicates function key displays.
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Safety Notes
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otes on Use
In order to ensure safe operation and to obtain maximum performance from
the unit, observe the cautions listed below.
(1) Installation environment
WARNIN
DANGE
The unit should always be operated in a range from 5℃ to 40℃ and 35%
to 80% RH or less. Do not use the unit in direct sunlight, dusty
conditions, or in the presence of corrosive gases.
(2) Power supply connections
Before connecting the unit, make sure that the power supply voltage
matches the rated power supply voltage of the 8846 (
"Power Supply and Ground Connection".
Before connecting the unit to a battery or other DC source, make sure
that the intermediate switch is set to OFF. If the switch is ON, there is a
risk of sparks.
Section 4.2,
(3) Protective grounding
・Be sure to connect the ground terminal to a good ground ( Section 4.2,
"Power Supply and Ground Connection"). If the AC outlet is grounded, using
the supplied power cord with 3-prong plug will establish the ground
connection.
・Also when powering the unit from a battery or other DC source, connect the
ground terminal to a good ground.
(4) Before powering on
・Check that the power supply is correct for the rating of the unit. Also check
that the correct fuse is fitted. (
Connection". (The AC fuse is integrated in the unit.)
・The power switches of this unit are separate for AC power (power switch on
8846) and DC power (intermediate switch on DC power supply cable). If DC
power is being supplied and the intermediate switch is set to ON, the 8846
will operate also if the power switch is set to OFF.
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Section 4.2, "Power Supply and Ground
Notes on Use
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(5) Probe Connection, Measurement Voltage Input
DANGE
Maximum input ratings for the analog units 8916 - 8919, 8927, and 8928
and the input terminals of the 8846 are shown below. To avoid the risk
of electric shock and damage to the unit, take care not to exceed these
ratings.
The 8918 TEMPERATURE UNIT is designed specifically for
thermocouples. Do not use it with any other components. (Circuit
protection is provided for up to 100 V DC or AC, but any voltage above
this value will destroy the unit.)
The maximum floating voltage of 8916 to 8919, 8928 (voltage between
input and 8846 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 floating voltage rating applies also if an input attenuator
or similar is used.
The 8927 ANALOG UNIT is not isolated from the ground of the 8846
(common ground). To avoid the risk of electric shock and damage to the
unit, make sure that the ground connection and input connections are
correctly established. (
Section 4.4)
When measuring power line voltages with the 8916, 8917, or 8919,
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 input cables (units 8916, 8917, and 8919 use
the input cable 9574, and unit 8927 uses the connecting cable 9437).
Any exposed metal sections in an input cable consist a risk of electric
Input/output terminalMaximum input rating Maximum floating voltag
8916 inputs
8917 inputs
500 V DC+AC peak 450 V AC/DC
8919 inputs
8918 inputs
8927 inputs
8928 inputs
100 V AC/DC 250 V AC/DC
50 V DC+AC peak No floating
10 V DC+AC peak 40 V DC+AC peak
EXT TRIG
START
STOP
-5 V to 10 V No floating
PRINT
EXT SMPL
MIC
TRIG OUT
NG
0 V to 5 V DC+AC peak No floating
-20 V to +30 V
500 mA max
200 mW max
No floating
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Notes on Use
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WARNIN
DANGE
CAUTIO
The logic units all have and the 8846 have a common ground.
(6) Replacing the fuse and input units
Use a DC power supply fuse of the proper rating (12 A/250 V).
In order to avoid accidents from electric shock, before removing or
replacing an input unit or changing a fuse, check that the input cables
are disconnected, turn off the power, and remove the power cable.
Normally keep all eight 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.
(7) 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 (
Paper").
Section 4.6, "Loading Recording
CAUTIO
NOTE
(8) 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.
(9) 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.
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Notes on Use
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(10) Shipping
CAUTIO
NOTE
NOTE
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 tape from the unit.
If reshipping the unit, preferable use the original packing.
(11) Others
･ In the event of problems with operation, first refer to Section 23.4, "Trouble
shooting".
･ Carefully read and observe all precautions in this manual.
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Notes on Use
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hapter Summary
Chapter 1 Product Overview
Contains an overview of the unit and its features.
Chapter 2 Specifications
Contains general specifications and detailed function specifications.
Chapter 3 Logic Input Section and Analog Input Unit
Contains specifications and precautions for logic input section and input
amplifier units.
Chapter 4 Setup and Preparations
Explains how to set the unit up for measurement.
Chapter 5 Operation Steps for Basic Measurement
Explains how to operate the keys and JOG/SHUTTLE control for carrying out
basic measurement functions.
Chapter 6 Memory Recorder Function Settings
Explains how to use the memory recorder functions of the unit.
Chapter 7 Recorder Function Settings
Explains how to use the recorder functions of the unit.
Chapter 8 FFT Function Settings
Explains how to use the FFT analysis 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 System Screen Settings
Explains how to make settings using the system setting screen.
Chapter 12 Printout of Waveform Data and Processing Data
Explains how to print out data and how to read printed charts.
Chapter 13 Storing Data On MO Disk
Explains how to store data on MO disk and how to read stored data.
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Chapter Summary
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Chapter 14 Calculating Waveform Data
Explains the waveform processing functions of the unit and how to input
processing equations.
Chapter 15 Determining Waveform Parameters / Evaluating Parameter Values
Explains waveform parameter processing functions and waveform parameter
evaluation. 14 parameters of the input waveform are determined and used for
GO/NG evaluation.
Chapter 16 Waveform GO/NG Evaluation
Explains the waveform evaluation function which uses an evaluation area
created by the user for GO/NG evaluation.
Chapter 17 Memory Segmentation Function
Explains the memory segmentation function which splits the internal memory
into blocks for storing waveform data.
Chapter 18 Waveform Averaging
Explains the waveform averaging function which serves to remove noise
components from the waveform.
Chapter 19 Using the A/B Cursors / Waveform Scrolling
Explains how to use the A/B cursors and how to perform waveform scrolling.
Chapter 20 LEVEL MON. Key, CH.SET Key, HELP Key
Explains how to use the LEVEL MON., CH.SET, and HELP keys.
Chapter 21 External Input/Output Connectors / Key Lock Function
Gives specifications and usage details of the external input/output connectors.
Chapter 22 Using the D/A Output Unit 9539 (Option)
Gives specifications and usage details of the optional D/A output unit 9539.
Chapter 23 Maintenance
Describes maintenance and fuse replacement procedures.
Chapter 24 Error and Warning Messages
Describes error and warning messages and lists reference sections in the
manual.
Appendix Contains a glossary of terms used in this manual and gives some basic
reference information.
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Chapter Summary
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Chapter
1
2
.1 Major Features
(1) Storage capability using MO disk
Waveform data and parameter information can be recorded on MO disk.
(2) Easy to read, large color display
The 9.5-inch TFT color screen with a resolution of 640 × 480 dots shows all
information at a glance.
(3) Built-in thermal printer for A4-size printouts
・The built-in printer delivers waveform printouts on the spot.
・The printer can also be used to print screen shots and parameter information.
Product Overvie
3
4
5
6
7
8
9
(4) 16-channel, 14-bit high-resolution recording capability
Using the analog unit 8927 (designed specifically for the 8845 and 8846, not
isolated from ground), waveform recording can be performed in up to 16
channels with 14-bit resolution.
(5) Expansion units designed for 8840 can be used
・The 8916 ANALOG UNIT, 8917 DC/RMS UNIT, 8918 TEMPERATURE UNIT,
and 8919 FFT UNIT can be used in the 8846.
・Units designed for 8840 are connected in a floating configuration (isolated
from ground).
(6) Playback of recorded waveform data
The optional 9539 D/A OUTPUT UNIT allows output of recorded waveform
data (2 channels) as an analog waveform with a +6.4 to -6.4 V range.
(7) Voice memo capability
Simply by connecting a microphone to the unit, the user can record a voice
memo along with waveform data.
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(8) Simple function key interface
Thanks to its GUI-inspired design using large function key graphics, the unit
is easy to set up and operate.
(9) 3 incorporated functions
・Memory recorder with up to 200 kS/s and 2 M word capacity (using 1 unit/1
channel); X-Y plotting also possible.
・Continuous real-time recording capability to tape or paper in recorder function
・FFT function with 12 analysis patterns
(10) Trigger function
・Digital trigger circuit
・4 trigger types: level trigger, window-in trigger, window-out trigger, logic
trigger
(11) Waveform data processing
Absolute waveform values, integral values, and differential values can be
calculated, and arithmetic processing of multiple waveform data is also
possible.
(12) Waveform parameter calculation
14 waveform values including maximum, minimum, and effective values can
be determined.
(13) Waveform evaluation
A good/no-good decision (GO/NG) can be performed depending on whether the
waveform is in a standard area or not. The standard area can be easily set up
using the graphics editor.
(14) 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.
(15) Strain gauge adapter
The measurement with a strain gauge adapter is possible by using the 8928
STRAIN UNIT.
(16) GP-IB interface
The optional 9537 GP-IB INTERFACE applied to IEEE-488.2 can be used.
It is possible to input and output data and remotely control.
(17) SCSI interface
The optional 9538 SCSI INTERFACE applied to ANSI-X3.131-1986, JIS-X6051
can be used. The waveform data recorded on a MO disk can be transferred to
a personal computer with using the 9606 DATA CONVERSION UTILITY.
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1.1 Major Features
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.2 Identification of Controls and Indicators
1
Controls and indicators of the unit are listed on the following pages, along
with a simple explanation of their function.
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1.2 Identification of Controls and Indicators
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1
STATUS key Causes the display to show the STATUS screen which
serves for setting most measurement parameters.
2
CHAN key Causes the display to show the CHANNEL screen which
serves for making input channel settings.
3
DISP key Causes the display to show measurement and analysis
results.
1
2
4
SYSTEM key Causes the display to show the SYSTEM screen which
serves for making system-wide settings such as for the
scaling function (
5
FILE key Causes the display to show the MO screen which serves
for making MO disk settings (
6
AUTO key Pressing this key activates automatic setting of X and Y
axis range values for easy reading (
7
PRINT key Serves to print out stored waveforms ( Chapter 12).
8
COPY key Serves to print out a hard copy of the current screen
display (
9
FEED key Causes the printer paper to advance for as long as the
key is pressed (
1
Select key Selects the function that is controlled by the
JOG/SHUTTLE knob. With each push of the key, the
functions is toggled between VALUE and WAVE A B
CSR. The respective LED lights up (
1
JOG key Rotary control knob that serves to change values, move
the A/B cursors, and scroll the waveform.
Chapter 12).
Chapter 11).
Chapter 13).
Sections 6.3, 7.3).
Chapter 12).
Chapter 19).
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SHUTTLE key Concentric ring that serves to move the flashing cursor,
A/B cursors, and to scroll the waveform. The speed of
movement is proportional to the rotation angle
(
Chapter 19).
1
CURSOR keys These keys serve to move the flashing cursor in the four
directions.
START key Initiates the measurement and analysis. During
measurement, the LED above the key is lit.
STOP key Stops measurement and analysis.
LEVEL MON. key Serves to check the input signal level ( Chapter 20).
CH. SET key Serves to display and change measurement parameters
for the various channels (
HELP key Serves to indicate the position of the currently displayed
screen information in relation to the entire recording
length (
F1 - F5 keys Serve to select setting items.
LCD screen
Chapter 20).
Chapter 20).
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Left Side View
Right Side View
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1.2 Identification of Controls and Indicators
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Printer
AC POWER switch Serves to turn the unit on and off.
1
Protective ground terminal (GND)
AC connector The supplied power cord must be plugged in here.
2
Input unit slots These slots accept various input units, such as
the 8916
8918
8927
2
Analog input connector (on 8927 ANALOG UNIT) Unbalanced analog input
Ventilation slots
Fastening screw Secures the plug-in unit.
2
Expansion slot Accepts the optional unit.
The 9537 GP-IB INTERFACE, 9538 SCSI INTERFACE,
and 9539 D/A OUTPUT UNIT can be used.
3
Analog output connector (of the 9539 D/A OUTPUT UNIT)
BUSY lamp MO drive activity indicator. Indicates during drive
operation.
Disk insertion slot The MO disk is inserted here.
ANALOG UNIT, 8917 DC/RMS UNIT,
TEMPERATURE UNIT, 8919 FFT ANALOG UNIT,
ANALOG UNIT, and 8928 STRAIN UNIT.
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Tilt support Serves to tilt the unit upwards.
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1.2 Identification of Controls and Indicators
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Top View
Bottom View
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1.2 Identification of Controls and Indicators
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