Micsig VATO Series User manual

Version Info
Version
Date
Remarks
V1.0
2024.01

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 ........................................................................................................................................ 8
2.2 FRONT PANEL ................................................................................................................................................................ 9
2.3 REAR PANEL ................................................................................................................................................................ 10
2.4 POWER ON/OFF THE OSCILLOSCOPE............................................................................................................................... 11
2.5 CONNECT THE OSCILLOSCOPE ....................................................................................................................................... 11
2.6 UNDERSTAND THE OSCILLOSCOPE DISPLAY INTERFACE ................................................................................................. 17
2.7 INTRODUCTION BASIC OPERATIONS OF TOUCH SCREEN ................................................................................................. 23

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2.8 USE AUTO.................................................................................................................................................................... 25
2.9 LOAD FACTORY SETTINGS ............................................................................................................................................ 27
2.10 USE AUTO-CALIBRATION ............................................................................................................................................ 27
2.11 PASSIVE PROBE COMPENSATION ................................................................................................................................. 28
2.12 MODIFY THE LANGUAGE ............................................................................................................................................ 33
CHAPTER 3 AUTOMOTIVE TEST .......................................................................................................................................34
3.1 CHARGING/START CIRCUIT.................................................................................................................................................. 34
3.1.1 12V Charging.................................................................................................................................................... 36
3.1.2 24V Charging.................................................................................................................................................... 38
3.1.3 Alternator AC Ripple......................................................................................................................................... 39
3.1.4 Ford Focus Smart Generator............................................................................................................................... 40
3.1.5 12V Start ............................................................................................................................................................ 42
3.1.6 24V Start .......................................................................................................................................................... 45
3.1.7 Cranking Current .............................................................................................................................................. 46

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3.2 SENSOR TESTS ................................................................................................................................................................ 48
3.2.1 ABS..................................................................................................................................................................... 49
3.2.2 Accelerator pedal ............................................................................................................................................... 51
3.2.3 Air Flow Meter.................................................................................................................................................... 53
3.2.4 Camshaft............................................................................................................................................................ 56
3.2.5 Coolant Temperature.......................................................................................................................................... 59
3.2.6 Crankshaft.......................................................................................................................................................... 61
3.2.7 Distributor............................................................................................................................................................. 63
3.2.8 Fuel pressure ...................................................................................................................................................... 65
3.2.9 Knock.................................................................................................................................................................. 67
3.2.10 Lambda ............................................................................................................................................................ 69
3.2.11 MAP ................................................................................................................................................................. 72
3.2.12 Road Speed....................................................................................................................................................... 75
3.2.13 Throttle Position............................................................................................................................................... 77
3.3 ACTUATORS.................................................................................................................................................................... 79

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3.3.1 Carbon canister solenoid valve ........................................................................................................................... 79
3.3.2 Disel Glow Plugs ................................................................................................................................................. 81
3.3.3 EGR Solenoid Valve............................................................................................................................................. 83
3.3.4 Fuel Pump .......................................................................................................................................................... 85
3.3.5 Idle speed control valve .................................................................................................................................... 87
3.3.6 Injector (gasoline engine) ................................................................................................................................. 89
3.3.7 Injector (Diesel) .................................................................................................................................................. 91
3.3.8 Pressure regulator............................................................................................................................................ 93
3.3.9 Quantity (Flow) control valve ............................................................................................................................. 95
3.3.10 Throttle Servo Motor........................................................................................................................................ 97
3.3.11 Variable speed cooling fan................................................................................................................................ 99
3.3.12 Variable valve timing...................................................................................................................................... 101
3.4 IGNITION TESTS............................................................................................................................................................. 103
3.4.1 Primary............................................................................................................................................................. 103
3.4.2 Secondary......................................................................................................................................................... 107

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3.4.3 Primary + Secondary......................................................................................................................................... 109
3.5 NETWORKS .................................................................................................................................................................. 112
3.5.1 CAN High & CAN Low ....................................................................................................................................... 112
3.5.2 LIN Bus ............................................................................................................................................................. 115
3.5.3 FlexRay Bus ...................................................................................................................................................... 117
3.5.4 K line ................................................................................................................................................................ 120
3.6 COMBINATION TESTS...................................................................................................................................................... 122
3.6.1 Crankshaft + Camshaft..................................................................................................................................... 122
3.6.2 Crankshaft + Primary ignition........................................................................................................................... 124
3.6.3 Primary ignition + Injector voltage ................................................................................................................... 126
3.6.4 Crankshaft + Camshaft + Injector + Secondary Ignition .................................................................................... 128
CHAPTER 4 HORIZONTAL SYSTEM..................................................................................................................................130
4.1 MOVE THE WAVEFORM HORIZONTALLY ...................................................................................................................... 132
4.2 ADJUST THE HORIZONTAL TIME BASE (TIME/DIV)....................................................................................................... 133

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4.3 PAN AND ZOOM SINGLE OR STOPPED ACQUISITIONS.................................................................................................... 136
4.4 ZOOM MODE........................................................................................................................................................... 137
CHAPTER 5 VERTICAL SYSTEM.......................................................................................................................................141
5.1 OPEN/CLOSE WAVEFORM (CHANNEL, MATH, REFERENCE WAVEFORMS)..................................................................... 143
5.2 ADJUST VERTICAL SENSITIVITY .................................................................................................................................. 148
5.3 ADJUST VERTICAL POSITION....................................................................................................................................... 149
5.4 OPEN CHANNEL MENU ............................................................................................................................................... 150
5.4.1 Set Channel Coupling........................................................................................................................................... 151
5.4.2 Set Bandwidth Limit ............................................................................................................................................ 153
5.4.3 Waveform Inversion ............................................................................................................................................ 154
5.4.4 Set Probe Type..................................................................................................................................................... 155
5.4.5 Set Probe Attenuation Coefficient........................................................................................................................ 156
5.4.6 Vertical expansion datum.................................................................................................................................... 158
5.4.7 Channel label....................................................................................................................................................... 158

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CHAPTER 6 TRIGGER SYSTEM ........................................................................................................................................160
6.1 TRIGGER AND TRIGGER ADJUSTMENT ......................................................................................................................... 161
6.2 EDGE TRIGGER........................................................................................................................................................... 173
6.3 PULSE WIDTH TRIGGER .............................................................................................................................................. 177
6.4 SERIAL BUS TRIGGER ................................................................................................................................................. 184
CHAPTER 7 ANALYSIS SYSTEM .......................................................................................................................................185
7.1 AUTOMATIC MEASUREMENT....................................................................................................................................... 186
7.2CURSOR ...................................................................................................................................................................... 197
7.3 PHASE RULERS........................................................................................................................................................... 203
CHAPTER 8 STORAGE ....................................................................................................................................................204
8.1 SCREEN CAPTURE FUNCTION...................................................................................................................................... 205
8.2 WAVEFORM STORAGE ................................................................................................................................................ 205
8.3 OSCILLOSCOPE SETTING SAVE ..................................................................................................................................... 211
CHAPTER 9 MATH AND REFERENCE...............................................................................................................................213