Micsig ATO Series User manual

Version Info
Version
Date
Remarks
V1.0
2023.02

Preface
Preface
Dear customers,
Congratulations! Thank you for buying Micsig instrument. Please read this manual carefully before use and
particularly pay attention to the “Safety Precautions”.
If you have read this manual, please keep it properly for future reference.
The information contained herein are furnished in an “as-is” state, and may be subject to change in future versions
without notice.
The standard applicable for this product: GB/T15289-2013.

Table of Contents
i
Table of Contents
TABLE OF CONTENTS........................................................................................................................................................................... I
CHAPTER 1. SAFETY PRECAUTIONS.............................................................................................................................................. 1
1.1 SAFETY PRECAUTIONS.............................................................................................................................................................................................1
1.2 SAFETY TERMS AND SYMBOLS ...............................................................................................................................................................................5
CHAPTER 2. QUICK START GUIDE OF OSCILLOSCOPE ............................................................................................................. 8
2.1 INSPECT PACKAGE CONTENTS................................................................................................................................................................................9
2.2 USE THE BRACKET................................................................................................................................................................................................ 10
2.3 SIDE PANEL ........................................................................................................................................................................................................... 11
2.4 REAR PANEL.......................................................................................................................................................................................................... 12
2.5 TOP PANEL ............................................................................................................................................................................................................ 13
2.6 FRONT PANEL........................................................................................................................................................................................................ 14

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2.7 POWER ON/OFF THE OSCILLOSCOPE.................................................................................................................................................................. 15
2.8 UNDERSTAND THE OSCILLOSCOPE DISPLAY INTERFACE.................................................................................................................................. 16
2.9 INTRODUCTION BASIC OPERATIONS OF TOUCH SCREEN ................................................................................................................................. 22
2.10 MOUSE OPERATION ........................................................................................................................................................................................... 24
2.11 CONNECT PROBE TO THE OSCILLOSCOPE........................................................................................................................................................ 25
2.12 USE AUTO............................................................................................................................................................................................................ 26
2.13 LOAD FACTORY SETTINGS................................................................................................................................................................................. 31
2.14 USE AUTO-CALIBRATION................................................................................................................................................................................... 31
2.15 PASSIVE PROBE COMPENSATION...................................................................................................................................................................... 33
2.16 MODIFY THE LANGUAGE.................................................................................................................................................................................... 38
CHAPTER 3 AUTOMOTIVE TEST ...................................................................................................................................................39
3.1 CHARGING/START CIRCUIT ................................................................................................................................................................................. 39
3.1.1 12V Charging ................................................................................................................................................................................................41
3.1.2 24V Charging ................................................................................................................................................................................................43

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3.1.3 Alternator AC Ripple..................................................................................................................................................................................44
3.1.4 Ford Focus Smart Generator ....................................................................................................................................................................46
3.1.5 12V Start............................................................................................................................................................................................................48
3.1.6 24V Start.........................................................................................................................................................................................................50
3.1.7 Cranking Current ........................................................................................................................................................................................51
3.2 SENSOR TESTS....................................................................................................................................................................................................... 53
3.2.1 ABS .......................................................................................................................................................................................................................54
3.2.2 Accelerator pedal...........................................................................................................................................................................................55
3.2.3 Air Flow Meter ................................................................................................................................................................................................58
3.2.4 Camshaft............................................................................................................................................................................................................61
3.2.5 Coolant Temperature...................................................................................................................................................................................63
3.2.6 Crankshaft.........................................................................................................................................................................................................65
3.2.7 Distributor............................................................................................................................................................................................................68
3.2.8 Fuel pressure....................................................................................................................................................................................................70

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3.2.9 Knock...................................................................................................................................................................................................................72
3.2.10 Lambda............................................................................................................................................................................................................74
3.2.11 MAP...................................................................................................................................................................................................................78
3.2.12 Road Speed.....................................................................................................................................................................................................80
3.2.13 Throttle Position..........................................................................................................................................................................................82
3.3 ACTUATORS............................................................................................................................................................................................................ 85
3.3.1 Carbon canister solenoid valve................................................................................................................................................................85
3.3.2 Disel Glow Plugs .............................................................................................................................................................................................88
3.3.3 EGR Solenoid Valve .......................................................................................................................................................................................90
3.3.4 Fuel Pump .........................................................................................................................................................................................................92
3.3.5 Idle speed control valve............................................................................................................................................................................94
3.3.6 Injector (gasoline engine).......................................................................................................................................................................96
3.3.7 Injector (Diesel)..............................................................................................................................................................................................98
3.3.8 Pressure regulator................................................................................................................................................................................... 100
3.3.9 Quantity (Flow) control valve............................................................................................................................................................... 102

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3.3.10 Throttle Servo Motor.............................................................................................................................................................................. 104
3.3.11 Variable speed cooling fan................................................................................................................................................................... 106
3.3.12 Variable valve timing............................................................................................................................................................................. 109
3.4 IGNITION TESTS ..................................................................................................................................................................................................111
3.4.1 Primary ........................................................................................................................................................................................................... 112
3.4.2 Secondary....................................................................................................................................................................................................... 115
3.4.3 Primary + Secondary ................................................................................................................................................................................ 117
3.5 NETWORKS ..........................................................................................................................................................................................................120
3.5.1 CAN High & CAN Low................................................................................................................................................................................ 120
3.5.2 LIN Bus............................................................................................................................................................................................................ 122
3.5.3 FlexRay Bus ................................................................................................................................................................................................... 125
3.5.4 K line................................................................................................................................................................................................................. 127
3.6 COMBINATION TESTS..........................................................................................................................................................................................129
3.6.1 Crankshaft + Camshaft............................................................................................................................................................................. 129

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3.6.2 Crankshaft + Primary ignition.............................................................................................................................................................. 131
3.6.3 Primary ignition + Injector voltage.................................................................................................................................................... 133
3.6.4 Crankshaft + Camshaft + Injector + Secondary Ignition .......................................................................................................... 135
CHAPTER 4 HORIZONTAL SYSTEM............................................................................................................................................ 137
4.1 MOVE THE WAVEFORM HORIZONTALLY.......................................................................................................................................................139
4.2 ADJUST THE HORIZONTAL TIME BASE (TIME/DIV)....................................................................................................................................140
4.3 PAN AND ZOOM SINGLE OR STOPPED ACQUISITIONS.................................................................................................................................142
4.4 ROLL, XY..........................................................................................................................................................................................................143
4.5 ZOOM MODE ....................................................................................................................................................................................................152
CHAPTER 5 VERTICAL SYSTEM.................................................................................................................................................. 155
5.1 OPEN/CLOSE WAVEFORM (CHANNEL, MATH, REFERENCE WAVEFORMS)................................................................................................157
5.2 ADJUST VERTICAL SENSITIVITY ........................................................................................................................................................................162
5.3 ADJUST VERTICAL POSITION .............................................................................................................................................................................163
5.4 OPEN CHANNEL MENU ......................................................................................................................................................................................163

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5.4.1 Set Channel Coupling.................................................................................................................................................................................... 165
5.4.2 Set Bandwidth Limit...................................................................................................................................................................................... 167
5.4.3 Waveform Inversion ...................................................................................................................................................................................... 168
5.4.4 Set Probe Type ................................................................................................................................................................................................. 169
5.4.5 Set Probe Attenuation Coefficient........................................................................................................................................................... 170
5.4.6 Labels................................................................................................................................................................................................................... 171
CHAPTER 6 TRIGGER SYSTEM.................................................................................................................................................... 173
6.1 TRIGGER AND TRIGGER ADJUSTMENT..............................................................................................................................................................174
6.2 EDGE TRIGGER ....................................................................................................................................................................................................187
6.3 PULSE WIDTH TRIGGER.....................................................................................................................................................................................191
6.4 LOGIC TRIGGER ...................................................................................................................................................................................................199
6.5 NTH EDGE TRIGGER ...........................................................................................................................................................................................205
6.6 RUNT TRIGGER....................................................................................................................................................................................................208
6.7 SLOPE TRIGGER...................................................................................................................................................................................................210

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6.8 TIMEOUT TRIGGER .............................................................................................................................................................................................215
6.9 VIDEO TRIGGER...................................................................................................................................................................................................218
6.10 SERIAL BUS TRIGGER.......................................................................................................................................................................................223
CHAPTER 7 ANALYSIS SYSTEM................................................................................................................................................... 224
7.1 AUTOMATIC MEASUREMENT .............................................................................................................................................................................225
7.2 FREQUENCY METER MEASUREMENT ...............................................................................................................................................................238
7.3 CURSOR ................................................................................................................................................................................................................239
7.4 PHASE RULERS....................................................................................................................................................................................................244
CHAPTER 8 SCREEN CAPTURE, MEMORY DEPTH AND WAVEFORM STORAGE .......................................................... 246
8.1 SCREEN CAPTURE FUNCTION............................................................................................................................................................................247
8.2 VIDEO RECORDING .............................................................................................................................................................................................250
8.3 WAVEFORM STORAGE ........................................................................................................................................................................................251
8.4 OSCILLOSCOPE SETTING SAVE............................................................................................................................................................................258
CHAPTER 9 MATH AND REFERENCE ........................................................................................................................................ 260

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9.1 DUAL WAVEFORM CALCULATION .....................................................................................................................................................................261
9.2 FFT MEASUREMENT ..........................................................................................................................................................................................266
9.3 ADVANCED MATH ...............................................................................................................................................................................................273
9.4 REFERENCE WAVEFORM CALL..........................................................................................................................................................................277
CHAPTER 10 DISPLAY SETTINGS............................................................................................................................................... 281
10.1 WAVEFORM SETTINGS.....................................................................................................................................................................................283
10.2 GRATICULE SETTING........................................................................................................................................................................................283
10.3 PERSISTENCE SETTING ....................................................................................................................................................................................284
10.4 HORIZONTAL EXPANSION CENTER.................................................................................................................................................................287
10.5 COLOR TEMPERATURE SETTING ....................................................................................................................................................................287
10.6 TIME BASE MODE SELECTION........................................................................................................................................................................288
CHAPTER 11 SAMPLING SYSTEM .............................................................................................................................................. 289
11.1 SAMPLING OVERVIEW......................................................................................................................................................................................290
11.2 RUN/STOP KEY AND SINGLE SEQ KEY ........................................................................................................................................................296

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11.3 SELECT SAMPLING MODE ...............................................................................................................................................................................297
11.4 RECORD LENGTH AND SAMPLING RATE........................................................................................................................................................303
CHAPTER 12 SERIAL BUS TRIGGER AND DECODE (OPTIONAL) ..................................................................................... 307
12.1 UART (RS232/RS422/RS485) BUS TRIGGER AND DECODE..............................................................................................................312
12.2 LIN BUS TRIGGER AND DECODE....................................................................................................................................................................324
12.3 CAN BUS TRIGGER AND DECODE ..................................................................................................................................................................332
12.4 SPI BUS TRIGGER AND DECODE ....................................................................................................................................................................339
12.5 I2C BUS TRIGGER AND DECODE ....................................................................................................................................................................346
12.6 ARINC429 BUS TRIGGER AND DECODE......................................................................................................................................................354
12.7 1553B BUS TRIGGER AND DECODE..............................................................................................................................................................362
CHAPTER 13 HOMEPAGE FUNCTIONS ..................................................................................................................................... 370
13.1 OSCILLOSCOPE (SEE CHAPTERS 2~12) .......................................................................................................................................................372
13.2 APP STORE ........................................................................................................................................................................................................372
13.3 SETTINGS...........................................................................................................................................................................................................376

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13.4 FILE MANAGER.................................................................................................................................................................................................383
13.5 CALCULATOR.....................................................................................................................................................................................................384
13.6 BROWSER ..........................................................................................................................................................................................................384
13.7 GALLERY............................................................................................................................................................................................................385
13.8 CALENDAR.........................................................................................................................................................................................................388
13.9 ELECTRONIC TOOLS .........................................................................................................................................................................................388
13.10 CLOCK .............................................................................................................................................................................................................389
13.11 POWER OFF....................................................................................................................................................................................................392
CHAPTER 14 REMOTE CONTROL............................................................................................................................................... 395
14.1 HOST COMPUTER .............................................................................................................................................................................................396
14.1.1 Installation of Host Computer Software............................................................................................................................................ 396
14.1.2 Connection of Host Computer................................................................................................................................................................. 397
14.1.3 Main Interface Introduction ................................................................................................................................................................... 399
14.1.4 Operation Interface Introduction......................................................................................................................................................... 401

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14.1.5 Storage and View of Pictures and Videos.......................................................................................................................................... 402
14.2 MOBILE REMOTE CONTROL............................................................................................................................................................................404
CHAPTER 15 UPDATE AND UPGRADE FUNCTIONS.............................................................................................................. 408
15.1 SOFTWARE UPDATE .........................................................................................................................................................................................409
15.2 ADD OPTIONAL FUNCTIONS............................................................................................................................................................................410
CHAPTER 16 REFERENCE............................................................................................................................................................. 413
16.1 MEASUREMENT CATEGORY.............................................................................................................................................................................414
16.2 POLLUTION DEGREE ........................................................................................................................................................................................415
CHAPTER 17 TROUBLESHOOTING............................................................................................................................................ 417
CHAPTER 18 SERVICES AND SUPPORT.................................................................................................................................... 423
ANNEX ................................................................................................................................................................................................ 425
ANNEX A:MAINTENANCE AND CARE OF OSCILLOSCOPE.......................................................................................................................................425
ANNEX B: ACCESSORIES............................................................................................................................................................................................428

Chapter 1. Safety Precautions
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Chapter 1. Safety Precautions
1.1 Safety Precautions
The following safety precautions must be understood to avoid personal injury and prevent damage to this product or
any products connected to it. To avoid possible safety hazards, it is essential to follow these precautions while using
this product.
Only professionally trained personnel can operate the maintenance procedure.
Avoid fire and personal injury.
Use proper power cord. Use only the power cord specified for this product and certified for the country/region
of use.
Connect and disconnect probes properly. Connect the instrument probe correctly, and its ground terminal is
ground phase. Do not connect or disconnect probes or test leads while they are connected to a voltage source.

2
Disconnect the probe input and the probe reference lead from the circuit under test before disconnecting the
probe from the measurement product.
Ground the product. To avoid electric shock, the instrument grounding conductor must be connected to
earth ground.
Observe all terminal ratings. To avoid fire or shock hazard, observe all rating and markings on the product.
Consult the product manual for further information of ratings before making connections to the product.
User correct probes. To avoid excessive electric shock, use only correct rated probes for any measurement.
Disconnect AC power. The adapter can be disconnected from AC power and the user must be able to access the
adapter at any time.
Do not operate without covers. Do not operate the product with covers or panels removed.
Do not operate with suspected failures. If you suspect that there is damage to this product, have it inspected
by service personnel designated by Micsig.

Chapter 1. Safety Precautions
3
Use adapter correctly. Supply power or charge the equipment by power adapter designated by Micsig, and
charge the battery according to the recommended charging cycle.
Avoid exposed circuitry. Do not touch exposed connections and components when power is present.
Provide proper ventilation.
Do not operate in wet/damp conditions.
Do not operate in a flammable and explosive atmosphere.
Keep product surfaces clean and dry.
The disturbance test of all models complies with Class A standards, based on EN61326:1997+A1+A2+A3,
but do not meet Class B standards.
Measurement Category
The ATO series oscilloscope is intended to be used for measurements in Measurement Category I.

4
Measurement Category Definition
Measurement category I is for measurements performed on circuits not directly connected to the MAINS. Examples
are measurements on circuits not derived from MAINS, and specially protected (internal) MAINS derived circuits.
In the latter case, transient stresses are variable; for that reason, the user must understand the transient withstand
capability of the equipment.
Warning
IEC Measurement Category. Under IEC Category I mounting conditions, the input terminal can be connected to the
circuit terminal with a maximum line voltage of 300Vrms. To avoid the risk of electric shock, the input terminal
should not be connected to the circuit with a line voltage greater than 300Vrms. Instantaneous overvoltage is
present in circuits that are isolated from the mains supply. The ATO series digital oscilloscope is designed to safely
withstand sporadic transient overvoltage up to 1000Vpk. Do not use this equipment for any measurements in
circuits where the instantaneous overvoltage exceeds this value.

Chapter 1. Safety Precautions
5
1.2 Safety Terms and Symbols
Terms in the manual
These terms may appear in this manual:
Warning. Warning statements indicate conditions or practices that could result in injury or loss of life.
Caution. Caution statements indicate conditions or practices that could result in damage to this product or
other property.
Terms on the product
These terms may appear on the product:
Danger indicates an injury hazard immediately accessible as you read the marking.
Warning indicates an injury hazard not immediately accessible as you read the marking.
Caution indicates a hazard to this product or other properties.