Micsig ATO Series User Manual
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Micsig ATO Series User Manual

Automotive oscilloscope
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  • Page 2 Version Info Version Date Remarks V1.0 2023.02...
  • Page 3 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.

  • Page 4: Table Of Contents

    Table of Contents Table of Contents TABLE OF CONTENTS ................................... I CHAPTER 1. SAFETY PRECAUTIONS .............................. 1 1.1 S ......................................1 AFETY RECAUTIONS 1.2 S ....................................5 AFETY ERMS AND YMBOLS CHAPTER 2. QUICK START GUIDE OF OSCILLOSCOPE ......................8 2.1 I ....................................
  • Page 5 2.7 P .................................. 15 OWER ON OFF THE SCILLOSCOPE 2.8 U ..........................16 NDERSTAND THE SCILLOSCOPE ISPLAY NTERFACE 2.9 I ..........................22 NTRODUCTION ASIC PERATIONS OF OUCH CREEN 2.10 M ......................................24 OUSE PERATION 2.11 C ................................ 25 ONNECT ROBE TO THE SCILLOSCOPE 2.12 U ..........................................
  • Page 6 Table of Contents 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 S ........................................53 ENSOR ESTS 3.2.1 ABS ............................................54 3.2.2 Accelerator pedal ......................................
  • Page 7 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 A ..........................................85 CTUATORS 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 .........................................
  • Page 8 Table of Contents 3.3.10 Throttle Servo Motor ....................................104 3.3.11 Variable speed cooling fan ................................... 106 3.3.12 Variable valve timing ..................................... 109 3.4 I ........................................111 GNITION ESTS 3.4.1 Primary ........................................... 112 3.4.2 Secondary ........................................115 3.4.3 Primary + Secondary ....................................117 3.5 N ..........................................
  • Page 9 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 M ............................... 139 OVE THE AVEFORM ORIZONTALLY 4.2 A ) ............................
  • Page 10 Table of Contents 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 T ................................
  • Page 11 6.8 T ......................................215 IMEOUT RIGGER 6.9 V ........................................218 IDEO RIGGER 6.10 S ....................................... 223 ERIAL RIGGER CHAPTER 7 ANALYSIS SYSTEM ..............................224 7.1 A ..................................... 225 UTOMATIC EASUREMENT 7.2 F ................................238 REQUENCY ETER EASUREMENT 7.3 C ..........................................239 URSOR 7.4 P ........................................
  • Page 12 Table of Contents 9.1 D ..................................261 AVEFORM ALCULATION 9.2 FFT M ......................................266 EASUREMENT 9.3 A ....................................... 273 DVANCED 9.4 R ..................................277 EFERENCE AVEFORM CHAPTER 10 DISPLAY SETTINGS............................... 281 10.1 W ..................................... 283 AVEFORM ETTINGS 10.2 G ......................................283 RATICULE ETTING 10.3 P...
  • Page 13 11.3 S ....................................297 ELECT AMPLING 11.4 R ................................ 303 ECORD ENGTH AND AMPLING CHAPTER 12 SERIAL BUS TRIGGER AND DECODE (OPTIONAL) ..................307 12.1 UART (RS232/RS422/RS485) B ......................312 RIGGER AND ECODE 12.2 LIN B ..................................324 RIGGER AND ECODE 12.3 CAN B ..................................
  • Page 14 Table of Contents 13.4 F ......................................... 383 ANAGER 13.5 C ........................................384 ALCULATOR 13.6 B .......................................... 384 ROWSER 13.7 G ..........................................385 ALLERY 13.8 C ......................................... 388 ALENDAR 13.9 E ......................................388 LECTRONIC OOLS 13.10 C ..........................................389 LOCK 13.11 P ........................................
  • Page 15 14.1.5 Storage and View of Pictures and Videos ............................402 14.2 M .................................... 404 OBILE EMOTE ONTROL CHAPTER 15 UPDATE AND UPGRADE FUNCTIONS......................408 15.1 S ......................................409 OFTWARE PDATE 15.2 A .................................... 410 PTIONAL UNCTIONS CHAPTER 16 REFERENCE ................................413 16.1 M .....................................

  • Page 16: Chapter 1. Safety Precautions

    Chapter 1. Safety Precautions 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.
  • Page 17  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.
  • Page 18 Chapter 1. Safety Precautions  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.
  • Page 19 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...

  • Page 20: Safety Terms And Symbols

    Chapter 1. Safety Precautions 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.
  • Page 21 Symbols on the product The following symbols may appear on the product: Hazardous Voltage Caution Refer to Manual Protective Ground Terminal Chassis Ground Measurement Ground Terminal Please read the following safety precautions to avoid personal injury and prevent damage to this product or any products connected to it.
  • Page 22 Chapter 1. Safety Precautions  User only insulated voltage probes supplied with the instrument, or the equivalent product indicated in the schedule.  Before use, inspect voltage probes, test leads, and accessories for mechanical damage and replace when damaged.  Remove voltage probes and accessories not in use. ...

  • Page 23: Chapter 2. Quick Start Guide Of Oscilloscope

    Chapter 2. Quick Start Guide of Oscilloscope This chapter contains checks and operations of the oscilloscope. You are recommended to read them carefully to understand appearance, power on/off, settings and related calibration requirements of the ATO series oscilloscope.  Inspect package contents ...

  • Page 24: Inspect Package Contents

    If any damage to oscilloscope is found by the appearance inspection or it fails to pass the performance test, please contact Micsig’s agent or local office. If the instrument is damaged due to transportation, please retain the package and contact the transportation company or Micsig’s agent, and Micsig will make arrangement.

  • Page 25: Use The Bracket

    2.2 Use the Bracket Put the front panel of the oscilloscope flatly on the table. Use your two index fingers to hold the underside of the bracket and open the bracket by slightly upwards force, as shown in Figure 2-1. Figure 2-1 Open Bracket...

  • Page 26: Side Panel

    Chapter 2. Quick Start Guide of Oscilloscope 2.3 Side Panel Figure 2-2 Side Panel There are various interfaces on the side of the oscilloscope, from left to right: Power-on button, Grounding, Probe compensation signal output, USB Host, HDMI, USB Device, Power-off lock, and Power port.

  • Page 27: Rear Panel

    2.4 Rear Panel Figure 2-3 Rear Panel a) Ch1 – Ch4 are signal measurement channels...

  • Page 28: Top Panel

    2.5 Top Panel Figure 2-4 Top Panel of Automotive Oscilloscope On top of the oscilloscope is the Micsig UPI universal probe interface, which is designed to power active probes and automatically communicate scale factors on the scope display.

  • Page 29: Front Panel

    2.6 Front Panel Figure 2-5 Front Panel of Automotive Oscilloscope...

  • Page 30: Power On/Off The Oscilloscope

    Chapter 2. Quick Start Guide of Oscilloscope 2.7 Power on/off the Oscilloscope Power on/off the oscilloscope First time start  Connect power adapter to the oscilloscope, and the oscilloscope should not be pressed on the adapter cable.  Check the Power-off lock on the side of oscilloscope and press the power button to start the instrument.

  • Page 31: Understand The Oscilloscope Display Interface

    Caution: Forced power-off may result in loss of unsaved data, please use with caution. 2.8 Understand the Oscilloscope Display Interface This section provides a brief introduction and description of the ATO series oscilloscope user’s interface. After reading this section, you can be familiar with the oscilloscope display interface content within the shortest possible time.
  • Page 32 Chapter 2. Quick Start Guide of Oscilloscope Figure 2-6 Oscilloscope Interface Display...
  • Page 33 Description Micsig logo Oscilloscope status, including RUN, STOP, WAIT, Auto Trigger point Sampling rate, memory depth The area in “[]” indicates the position of waveform displayed on the screen throughout the memory depth Delay time, the time at which the center line of the waveform display area is relative to the trigger...
  • Page 34 Chapter 2. Quick Start Guide of Oscilloscope Description Trigger level indicator CH1、CH2、CH3、CH4 channel icons and vertical sensitivity icon. Tap the channel icons to open channels; Click to adjust the vertical sensitivity of channels; Open the channel menu by swipe left from the desired channel and swipe right to close; Display the vertical sensitivity of channels;...
  • Page 35 Description Horizontal time base control icon. Tap the left/right time base buttons to adjust the horizontal time base of the waveform. Tap the time base to open the time base table. Tap to select the desired time base. Quick save. Tap to quickly save the waveform as a reference waveform. Fine adjustment button.
  • Page 36 Chapter 2. Quick Start Guide of Oscilloscope Description 50%: Touch to set:  The vertical position of the current channel waveform to the zero point  The horizontal position of the current channel waveform to center of the screen  The trigger level to the center of the trigger channel's waveform The activecursor back to the center of the scree Home Phase rulers: help to measure the timing of a cyclic waveform on a scope view.

  • Page 37: Introduction Basic Operations Of Touch Screen

    2.9 Introduction Basic Operations of Touch Screen The ATO series oscilloscope operates mainly by tap, swipe, single-finger drag. Tap button on the touch screen to activate the corresponding menu and function. Tap any blank space on the screen to exit the menu.
  • Page 38 Chapter 2. Quick Start Guide of Oscilloscope Figure 2-7 Slide out of Main Menu Tap the options in the main menu to enter the corresponding submenu.

  • Page 39: Mouse Operation

    Single-finger drag For coarse adjustments of vertical position, trigger point, trigger level, cursor, etc. of the waveform. Refer to “4.1 Waveform” and “5.3 Adjust Vertical Position” for details. Horizontal Move Pinch For fine adjustments of vertical sensitivity. 2.10 Mouse Operation Connect the mouse to the “USB Host”...

  • Page 40: Connect Probe To The Oscilloscope

    Chapter 2. Quick Start Guide of Oscilloscope Figure 2-8 Mouse Cursor 2.11 Connect Probe to the Oscilloscope Connect the probe to the oscilloscope channel BNC connector. Connect the retractable tip on the probe to the circuit point or measured equipment. Be sure to connect the probe ground wire to the ground point of the circuit.

  • Page 41: Use Auto

    Maximum input voltage of the analog input Category I 300Vrms, 400Vpk. 2.12 Use Auto Once the oscilloscope is properly connected and a valid signal is input, tap the Auto Set button to quickly configure the oscilloscope to be the best display effects for the input signal. While the oscilloscope in auto state, the Auto Set button will light up Auto is divided into Auto Set and Auto Range.
  • Page 42 Chapter 2. Quick Start Guide of Oscilloscope Source can be automatically triggered, and the triggered source channel can be automatically set to select priority to the current signal or to the maximum signal. Open the main menu. Tap “Auto” to open the auto set menu, including channel open/close setting, threshold voltage setting and trigger source setting.
  • Page 43 Note: The application of Auto Set requires that the frequency of measured signal is no less than 20Hz, the duty ratio is greater than 1% and the amplitude is at least 2mVpp. If these parameter ranges are exceeded, Auto Set will fail. Figure 2-10 Auto Set Waveform Auto Range - Continuously automatic, the oscilloscope continuously adjusts the vertical scale, horizontal time base and trigger level in a real-time manner according to the magnitude and frequency of signal.
  • Page 44 Chapter 2. Quick Start Guide of Oscilloscope Open the main menu and tap “Auto” to open the auto range menu for the corresponding settings. When the oscilloscope auto range function is turned on, the oscilloscope will automatically set various parameters, including: vertical scale, horizontal time base, trigger level, etc.
  • Page 45 Figure 2-11 Open Auto Range Auto Range is usually more useful than Auto Set under the following situations: It can analyze signals subject to dynamic changes. It can quickly view several continuous signals without adjusting the oscilloscope. This function is very useful if you need to use two probes at the same time, or if you can only use the probe with one hand because the other hand is full.

  • Page 46: Load Factory Settings

    Chapter 2. Quick Start Guide of Oscilloscope 2.13 Load Factory Settings Open the main menu, tap “User Settings” to enter the user setting page. Tap “Factory Settings” and the dialog box for loading factory settings will pop-up. Press “OK” and load the factory settings. The dialog box for loading factory settings is shown in Figure 2-12.
  • Page 47 and after calibrating is finished, the word in red disappears. When the temperature changes largely, the auto- calibration function can make the oscilloscope maintain the highest accuracy of measurement.  Auto-calibration should be done without probe.  Auto-calibration process takes about two minutes. ...

  • Page 48: Passive Probe Compensation

    Chapter 2. Quick Start Guide of Oscilloscope Figure 2-13 Manual zero calibration 2.15 Passive Probe Compensation Before connecting to any channels, users should make a probe compensation to ensure the probe match the input channel. The probe without compensation will lead to larger measurement errors or mistakes. Probe compensation...
  • Page 49 can optimize the signal path and make measurement more accurate. If the temperature changes 10℃ or above, this program must run to ensure the measurement accuracy. Probe compensation may be conducted in the following steps: First, connect the oscilloscope probe to CH1. If a hook head is used, make sure that it is in good connection with the probe.
  • Page 50 Chapter 2. Quick Start Guide of Oscilloscope Figure 2-13 Probe Connection Open the channel (if the channel is closed). Adjust the oscilloscope channel attenuation coefficient to match the probe attenuation ratio.
  • Page 51 button or manually adjust the waveform vertical sensitivity and horizontal time base. Observe the shape of the waveform, see Figure 2-14. Figure 2-14 Probe Compensation...
  • Page 52 Chapter 2. Quick Start Guide of Oscilloscope If the waveform on the screen is shown as “under-compensation” or “over-compensation”, please adjust the trimmer capacitor until the waveform shown on the screen as “correct-compensation”. The probe adjustment is shown in Figure 2-15. Figure 2-15 Probe Adjustment The safety ring on the probe provides a safe operating range.

  • Page 53: Modify The Language

    Connect the probe to all other oscilloscope channels (Ch2 of a 2-channel oscilloscope, or Ch 2, 3 and 4 of a 4- channel oscilloscope). Repeat this step for each channel. Warning  Ensure the wire insulation is in good condition to avoid probe electric shock while measuring high voltage. ...

  • Page 54: Chapter 3 Automotive Test

    Chapter 3 Automotive Test Chapter 3 Automotive Test This chapter contains most of the test applications of ATO automotive oscilloscopes in automotive circuits. The purpose is to help users quickly troubleshoot and locate automotive electronics faults. It is recommended that you read this chapter carefully to understand the general operation and use of automotive oscilloscopes.
  • Page 55 The ATO series car-specific oscilloscope can test the charging circuit and the starting circuit to test whether the charging/starting circuit of the car is working properly. The specific operations are as follows:：...

  • Page 56: Charging

    Chapter 3 Automotive Test 3.1.1 12V Charging 12V charging is suitable for gasoline vehicles. Use a BNC to banana cable, one end is connected to channel 1 of the oscilloscope, and the other end is connected to the positive and negative electrodes of the battery using two large alligator clips (the red wire is connected to the red clip to the positive electrode, and the black wire is connected to the black clip.
  • Page 57 Note: The generator adopts AC power generation. The voltage is converted to DC through multiple rectifier diodes. The voltage can be measured by a multimeter. However, when the diodes are damaged, the multimeter displays the correct readings, and the waveform can be judged by an oscilloscope. The specific operation is shown in Figure 3-2: Figure 3-2 12V Charging...

  • Page 58: Charging

    Chapter 3 Automotive Test 3.1.2 24V Charging 24V charging is suitable for diesel vehicles. The operation process is the same as that of 12V charging. The reference voltage is 26.5V~30V. It can be tested with an oscilloscope. The specific operation is shown in Figure 3- Figure 3-3 24V Charging...

  • Page 59: Alternator Ac Ripple

    3.1.3 Alternator AC Ripple The ATO oscilloscope can test the charging ripple and assist the user to determine whether the charging process is normal. Use a BNC to banana cable, one end is connected to the oscilloscope channel 1, and the other end is clamped between the positive and negative electrodes of the battery (the red wire is connected to the red clip) Connect the positive pole, and connect the black wire to the black clip to the negative pole).
  • Page 60 Chapter 3 Automotive Test Figure 3-4 Charging Ripple...

  • Page 61: Ford Focus Smart Generator

    3.1.4 Ford Focus Smart Generator Use a BNC to banana cable, connect one end to channel 1 of the oscilloscope, connect the black plug to the black alligator clip to ground (battery negative), and use a needle to connect the red connector to the engine ECM to generator output control line.
  • Page 62 Chapter 3 Automotive Test Use the ATO oscilloscope to test the Focus smart generator, the specific operation is shown in Figure 3-5: Figure 3-5 Ford Focus Smart Generator...

  • Page 63: Start

    3.1.5 12V Start Use the ATO oscilloscope to test the start of the gasoline car, the purpose is to test whether the performance of the battery is maintained in the normal range. Use a BNC to banana cable, connect one end to channel 1 of the oscilloscope, and use two large alligator clips to clamp the positive and negative poles of the battery (the red wire connects to the red clamp to the positive pole, and the black wire to the black clamp to the negative pole).
  • Page 64 Chapter 3 Automotive Test Figure 3-6 12V Start The following figure is the actual measurement diagram of the starting voltage and current of Mazda in a certain year:...

  • Page 65: Start

    Figure 3-7 Starting voltage and current 3.1.6 24V Start Use the ATO oscilloscope to test the starting process of the diesel vehicle, the purpose is to test whether the performance of the battery is maintained in the normal range, the operation process is the same as the 12V start. The specific operation is shown in Figure 3-8:...

  • Page 66: Cranking Current

    Chapter 3 Automotive Test Figure 3-8 24V Start 3.1.7 Cranking Current Use an ATO oscilloscope with a current probe to conduct a current test on the starting process of the car (automobile or diesel car), observe whether the current waveform is normal, use a current clamp of 600A or above,...
  • Page 67 and connect the BNC of the current clamp to channel 2. On, turn on the switch of the current clamp and clamp the current clamp to the positive or negative power line of the battery. You need to clamp the entire positive or negative line.

  • Page 68: Sensor Tests

    100 sensors on the mid-to-high-end cars of the company. The ATO series special oscilloscope can directly measure the signal waveform of the sensor. By comparing with the standard waveform during normal operation, it is easy to find whether the sensor is normal. The...

  • Page 69: Abs

    ATO series oscilloscope can test the following types of sensors. The purpose is to compare the real-time waveforms with the standard waveforms to help users find problems. The following are expanded and explained separately: 3.2.1 ABS The ABS wheel speed sensor is divided into analog and digital. The analog sensor has 2 signal terminals, the signal is a sine wave, and the frequency of the sine wave represents the speed.

  • Page 70: Accelerator Pedal

    Chapter 3 Automotive Test Figure 3-10 ABS Wheel Speed Sensor 3.2.2 Accelerator pedal The accelerator pedal is the signal of the automobile accelerator. There are generally 2 groups, each pair of 3 wires, power, signal, and ground. Divided into analog/analog and analog/digital. Analog/analog signal is two analog...
  • Page 71 signals, usually there are two ways, one is deviation signal: one signal is from 0.3V→4.8V, which rises as the accelerator pedal is depressed, and the other is 4.8V→0.3V, with Depress the accelerator pedal and descend. The other is the same direction signal, but the voltage is different, one is 0.5V→2.5V, the other is 1V→4.5V; (the voltage range is for reference only, the voltage range may be slightly different for different models, but the trend is the same).
  • Page 72 Chapter 3 Automotive Test Figure 3-11 Accelerator Pedal The following picture is the actual measurement diagram of the accelerator pedal sensor of a certain model:...

  • Page 73: Air Flow Meter

    3.2.3 Air Flow Meter Air flow meters generally have vane type, hot wire type, digital type, etc.; among them: vane type and hot wire type are both analog output, and the output voltage is proportional to the air flow, generally 0.5V~4.5V, but the non- linear ratio, It needs to be corrected in the ECM;...
  • Page 74 Chapter 3 Automotive Test voltage rises rapidly during acceleration, reaching a voltage of 4V~4.5V. After stopping the acceleration, it will return to the idling voltage; the output shows 0V or 5V is not normal. The digital type has a digital circuit inside the sensor. The output signal is a square wave. The frequency is used to represent the air flow.
  • Page 75 Figure 3-12 Air flow meter...

  • Page 76: Camshaft

    Chapter 3 Automotive Test 3.2.4 Camshaft The camshaft sensor is generally used for timing, and is often tested in conjunction with the crankshaft sensor to determine the timing of the vehicle. There are one or two camshaft sensors in the common car models, and the use of four is relatively small.
  • Page 77 Figure 3-13 Camshaft The following figure is the actual measurement diagram of the camshaft position sensor (Hall type) of a certain model:...

  • Page 78: Coolant Temperature

    Chapter 3 Automotive Test Figure 3-14 Camshaft position sensor (Hall type) 3.2.5 Coolant Temperature The coolant temperature sensor is usually called a water temperature sensor. Generally, it contains a thermistor. As the temperature increases, the resistance becomes smaller, which causes the output voltage to change, and the water...
  • Page 79 temperature changes slowly, so the voltage also changes slowly. Different models have different performances, and the output voltage can increase with the water temperature, it can also decrease with the water temperature. However, there is a special sensor called the Vauxhaus sensor. The output voltage of this sensor is 3-4V when the vehicle is cold.

  • Page 80: Crankshaft

    Chapter 3 Automotive Test Figure 3-15 Coolant Temperature 3.2.6 Crankshaft The crankshaft sensor is installed in many places, which can be near the front pulley or on the rear flywheel. The ECM judges the precise position of the engine based on its output signal. Usually there are induction type and Hall...
  • Page 81 type: the induction type output is usually a sine wave, there are missing teeth on the disk, and the sine wave will be missing in the missing teeth; this kind of sensor is generally 2-wire; the Hall type output is usually a square wave . Generally 3-wire, power, signal, and ground.
  • Page 82 Chapter 3 Automotive Test Figure 3-16 Crankshaft position sensor The figure below is the actual measurement of the crankshaft position sensor (inductive) of a certain model:...

  • Page 83: Distributor

    3.2.7 Distributor Distributor appears on models with high-voltage cables, and distribute the generated high voltages to spark plugs in sequence. Distributors generally have Hall type and induction type. Hall type is generally 3-wire, voltage, signal, and ground. The output is square wave. Inductive type is generally 2-wire. The output is sensing signal; use BNC to...
  • Page 84 Chapter 3 Automotive Test banana cable, one end is connected to channel 1 of the oscilloscope, and the other end is black The plug is grounded, and the red connector is connected to the signal line of the distributor with a needle. Use the ATO oscilloscope to test the distributor sensor (divided into two types: Hall effect and induction).

  • Page 85: Fuel Pressure

    3.2.8 Fuel pressure Fuel pressure signals generally appear on high-pressure fuel rails or sensors or common rail diesel vehicles, and the pressure is relatively high. Generally, the fuel pressure is proportional to the output voltage, and the voltage increases with the angle of the accelerator pedal (no-load and full-load will affect the voltage rise time). Use a BNC to banana cable, connect one end to channel 1 of the oscilloscope, the other end of the black plug is grounded, and the red connector uses a needle to connect the signal line of fuel pressure.
  • Page 86 Chapter 3 Automotive Test Figure 3-18 Fuel Pressure Sensor Test...

  • Page 87: Knock

    3.2.9 Knock The knock sensor is a passive device, generally 2-wire, signal and ground, no external power supply is required, and a signal will be generated when it is subjected to vibration. It can also be removed for testing. The signal can be generated by tapping, and the signal amplitude generally does not exceed 5V;...
  • Page 88 Chapter 3 Automotive Test Figure 3-19 Knock Sensor test...

  • Page 89: Lambda

    The following picture is the actual measurement diagram of the knock sensor of a certain model: 3.2.10 Lambda The Lambda, or Oxygen Sensor is generally installed on the exhaust pipe, before the catalytic converter. It is a feedback sensor used to sense the oxygen content in the exhaust gas, so that the ECM can judge the combustion situation in the combustion chamber and adjust the fuel supply of the engine.
  • Page 90 Chapter 3 Automotive Test There are several types of oxygen sensors: titanium oxygen, zirconium oxygen, and front & rear dual oxygen sensors; the signal switching frequency is about 1 Hz, and it can only work when the temperature is normal. The voltage is high when the mixture is thick, and the voltage is low when the mixture is thin.
  • Page 91 Figure 3-20 Lambda (oxygen sensor) test The following picture is the actual measurement diagram of a certain model of oxygen sensor:...
  • Page 92 Chapter 3 Automotive Test Figure 3-21 Lambda (Oxygen Sensor) diagram...

  • Page 93: Map

    3.2.11 MAP The MAP, or Intake Pressure sensor is used to sense the pressure of the intake manifold and send it to the ECM to determine the fuel supply, vacuum (or light load), and ignition timing advance angle. There are two kinds of analog and digital, usually there are 3 wires, power, signal, ground, or together with other devices.
  • Page 94 Chapter 3 Automotive Test Figure 3-22 MAP (intake pressure sensor)

  • Page 95: Road Speed

    3.2.12 Road Speed The speed sensor is generally installed on the drive output shaft of the speedometer of the gearbox or near the back of the head of the speedometer, to provide information for the ECM and monitor power. Usually is Hall type, there are 3 wires: power, signal, and ground, output square wave signal (some models will be analog, 2 wires, output inductive signal, sine wave).
  • Page 96 Chapter 3 Automotive Test Figure 3-23 Vehicle speed sensor test...

  • Page 97: Throttle Position

    3.2.13 Throttle Position The throttle position sensor is installed on the drive shaft of the throttle butterfly plate to sense the opening of the throttle and provide a basis for ECM to judge the intake. There are analog output and throttle switch output. Use a BNC to banana cable, connect one end to channel 1 of the oscilloscope, the other end of the black plug is grounded, and the red connector uses a needle to connect the signal line of the throttle position sensor or the throttle switch signal 1.
  • Page 98 Chapter 3 Automotive Test Figure 3-24 Throttle Position Sensor test The following figure is the actual measurement diagram of the throttle position sensor of a certain model:...
  • Page 99 Figure 3-25 Throttle Position Sensor Diagram...

  • Page 100: Actuators

    Chapter 3 Automotive Test Actuators 3.3.1 Carbon canister solenoid valve The carbon canister is generally installed in the engine compartment and connected to the fuel tank through a pipe to collect the vaporized oil and gas in the fuel tank, so as to prevent the oil and gas from being discharged into the air and causing pollution.
  • Page 101 Figure 3-26 Carbon canister solenoid valve test The following figure is the actual measurement of the Carbon canister solenoid valve of a Audi A6 model in a certain year:...
  • Page 102 Chapter 3 Automotive Test Figure 3-27 Audi A6 Carbon canister solenoid valve signal...

  • Page 103: Disel Glow Plugs

    3.3.2 Disel Glow Plugs When the engine or the weather is relatively cold, it will affect the combustion of diesel fuel, so the glow plug is required to heat the cylinder before starting. Diesel engine glow plugs generally have one for each cylinder, connected in series, powered by a battery, and controlled by a relay to open and close.
  • Page 104 Chapter 3 Automotive Test The specific operation is shown in Figure 3-28 below: Figure 3-28 Disel Glow Plugs...

  • Page 105: Egr Solenoid Valve

    3.3.3 EGR Solenoid Valve The EGR solenoid valve is an abandoned recirculation solenoid valve. After opening, a part of the exhaust gas will be sucked into the intake manifold again to reduce the combustion temperature, so as to reduce the emission of nitrogen oxides in the exhaust gas and achieve the goal of environmental protection.
  • Page 106 Chapter 3 Automotive Test Figure 3-29 EGR solenoid valve test...

  • Page 107: Fuel Pump

    3.3.4 Fuel Pump The fuel in the fuel tank can be pumped and pressurized through the fuel pump, usually there are 6-8 sectors. Under the same condition of the engine, a good fuel pump has the same and uniform current change in each sector. Use a current clamp, connect one end to channel 1 of the oscilloscope, and clamp the other end to the power line of the fuel pump.
  • Page 108 Chapter 3 Automotive Test Figure 3-30 Electronic fuel pump test...

  • Page 109: Idle Speed Control Valve

    3.3.5 Idle speed control valve The idle speed control valve adjusts the throttle position or forms an air bypass around the engine according to the load conditions of the engine and the engine temperature to deliver controllable airflow to the air duct to adjust the engine idle speed.
  • Page 110 Chapter 3 Automotive Test Figure 3-31 Idle speed control valve test...

  • Page 111: Injector (Gasoline Engine)

    3.3.6 Injector (gasoline engine) The fuel injector is an electromechanical device, which is supplied by a common rail fuel pipe and controlled by the ECM to start and stop time of fuel injection. Generally, it is a 2-wire device, the power supply voltage is 12V, and the ECM controls the grounding.
  • Page 112 Chapter 3 Automotive Test Figure 3-32 Injector (Petrol) Test...

  • Page 113: Injector (Diesel)

    3.3.7 Injector (Diesel) Most diesel engines use common rail fuel injection, fuel injection time is affected by the oil pressure. Low pressure at low speed, injection time is longer, less injection volume; High pressure at high speed, injection time is short, volume is large.
  • Page 114 Chapter 3 Automotive Test Figure 3-33 injector (diesel engine) test...

  • Page 115: Pressure Regulator

    3.3.8 Pressure regulator The pressure regulator is a valve controlled by a square wave duty cycle. It is installed on the high-pressure fuel pump or on the common rail pipe and controls the common rail pressure together with the flow control valve. The pressure relief valve simply controls the amount of high-pressure oil entering the oil return system, thereby increasing or decreasing the fuel pressure of the common rail pipe.
  • Page 116 Chapter 3 Automotive Test Figure 3-34 Pressure Regulator test...

  • Page 117: Quantity (Flow) Control Valve

    3.3.9 Quantity (Flow) control valve The flow control valve, also known as the flow regulator and the fuel inlet metering valve, is used to measure the flow of fuel from the low pressure or lift pump into the high-pressure fuel pump. The more fuel enters the piston chamber of the high-pressure fuel pump, the higher the pressure, which increases the pressure in the common rail fuel pipe;...
  • Page 118 Chapter 3 Automotive Test Figure 3-35 Quantity (Flow) control valve test...

  • Page 119: Throttle Servo Motor

    3.3.10 Throttle Servo Motor Throttle servo motor are commonly used in electronically controlled engines, and throttle butterfly valves are usually used. The ECM controls the throttle servo motor according to the accelerator pedal signal to realize the throttle opening control, which is then monitored by the throttle position sensor and transmits the signal back to the ECM to achieve closed-loop control.
  • Page 120 Chapter 3 Automotive Test Figure 3-36 Throttle servo motor test...

  • Page 121: Variable Speed Cooling Fan

    3.3.11 Variable speed cooling fan At present, most cars' fans are variable-speed, and the speed of the fan can be adjusted according to different working conditions and temperatures. Use a BNC to banana cable, connect one end to channel 1 of the oscilloscope, ground the other end of the black plug, and use a needle to pierce the red connector into the signal wire of the fan terminal;...
  • Page 122 Chapter 3 Automotive Test Figure 3-37 Variable-speed Cooling fan test The following picture is the actual measurement diagram of the cooling fan of a certain model:...
  • Page 123 Figure 3-38 Cooling fan measurement diagram...

  • Page 124: Variable Valve Timing

    Chapter 3 Automotive Test 3.3.12 Variable valve timing Variable valve timing is achieved by adjusting the phase of the engine cam so that the intake air volume changes with the change of engine speed, so as to achieve the best combustion efficiency and improve fuel economy. Use a BNC to banana cable, connect one end to channel 1 of the oscilloscope, the other end of the black plug is grounded, and the red connector is pierced into the variable valve timing signal line with a needle tip.
  • Page 125 Figure 3-39 Variable valve timing test The following picture is the actual measurement diagram of the Variable valve timing of a certain model:...

  • Page 126: Ignition Tests

    Chapter 3 Automotive Test Ignition Tests Special Attention! During the secondary ignition test, because the test voltage is about 40K volts, the secondary ignition probe must be used for operation. It is strictly forbidden to use the ordinary probe, otherwise it is very likely to cause personal safety injury and instrument damage.

  • Page 127: Primary

    3.4.1 Primary The ignition system of a gasoline car usually consists of a primary coil, a secondary coil and a spark plug. There are traditional ignition systems and electronic ignition systems. Currently, most car models already use electronic ignition systems. The primary circuit has developed from the basic contact type and capacitive type to the system with no distributor and one coil per cylinder that is commonly used today.
  • Page 128 Chapter 3 Automotive Test Figure 3-40 Primary ignition The figure below is the actual measurement of the primary ignition of a certain model:...
  • Page 129 Figure 3-41 Primary ignition actual test...

  • Page 130: Secondary

    Chapter 3 Automotive Test 3.4.2 Secondary The secondary coil has more coil turns than the primary coil, and can generate a high voltage of up to 40kv, which can cause the spark plug to break down and ignite. There are several types: distributor ignition system, distributorless ignition system/invalid spark, COP independent ignition, multi-COP integrated unit ignition.
  • Page 131 Figure 3-42 Secondary ignition test...

  • Page 132: Primary + Secondary

    Chapter 3 Automotive Test 3.4.3 Primary + Secondary When measuring the primary and secondary waveforms at the same time, please use the P130A probe, one end is connected to channel 1 of the oscilloscope, the black clip on the other end is grounded, pierce the needle into the ground wire of the primary coil, and the probe is hooked to the metal needle;...
  • Page 133 Figure 3-43: Primary + Scondary ignition test The following figure is the actual measurement of the primary and secondary ignition of the BMW 5 Series N20 engine:...
  • Page 134 Chapter 3 Automotive Test Figure 3-44 BMW 5 Series N20 Primary + Secondary ignition signal...

  • Page 135: Networks

    Networks 3.5.1 CAN High & CAN Low CAN bus is a communication system, which is widely used in modern vehicles. A car may have 2 to 3 CAN bus networks, both high-speed and low-speed. The general high-speed transmission rate is 500k, which is usually used for power transmission.
  • Page 136 Chapter 3 Automotive Test The specific CAN high and CAN low can be found in the technical manual of the vehicle. Use ATO oscilloscope to test the CAN bus, the specific operation is shown in Figure 3-45: Figure 3-45 CAN BUS Test The figure below is the actual measurement of the CAN bus of a certain model:...

  • Page 137: Lin Bus

    3.5.2 LIN Bus The LIN protocol is short for Local Interconnect Network. The Lin bus communication is very common in automobiles, it is low speed, there are multiple control devices mounted on a network. It can contril non-safety-critical and low-speed devices on vehicles, such as wipers,...
  • Page 138 Chapter 3 Automotive Test windows, mirrors, air conditioners, electronic seats, etc. LIN is single-wired, has high level and low level when transmitting data, the high level is 12V, and the low level is 0V. The LIN bus generally has a sync header followed by data.
  • Page 139 The following picture is the actual measurement of Audi A6 LIN bus in a certain year: Figure 3-47 Audi A6 LIN bus measurement...

  • Page 140: Flexray Bus

    Chapter 3 Automotive Test 3.5.3 FlexRay Bus With the increase of car transmission content, the Flexray bus with faster transmission speed has been developed, and the transmission rate can reach 10Mbps. It has the advantages of high speed, determinability, and fault tolerance.
  • Page 141 The specific Flexray bus measurement location can be found in the vehicle's technical manual. Use the ATO oscilloscope to test the FlexRay bus, the specific operation is shown in Figure 3-48: Figure 3-48: FlexRay bus test...

  • Page 142: K Line

    Chapter 3 Automotive Test 3.5.4 K line The K line is a special line for data transmission between the car control unit and the diagnostic instrument, and the transmission rate is low. In general, K-Line is very different from CAN Bus and most communication networks. For example, the CAN Bus network does not have a central or master ECM: all ECMs are equal because they can send and receive information along the network.
  • Page 143 Figure 3-49 K line test...

  • Page 144: Combination Tests

    Chapter 3 Automotive Test Combination Tests The electronic faults of automobiles are sometimes more complicated. We need to use an ATO oscilloscope to perform combination testing, compare several waveforms that collected, and help users judge the fault by observing and analyzing the timing relationship and quantitative relationship between the waveforms. The ATO is a powerful tool to solve such complex problems.
  • Page 145 Figure 3-50 Crankshaft + Camshaft Combination Test...

  • Page 146: Crankshaft + Primary Ignition

    Chapter 3 Automotive Test 3.6.2 Crankshaft + Primary ignition Measure the crankshaft and primary ignition at the same time, you can check whether the ignition advance angle is normal, and look for the cause of misfire at high engine speed. Check whether the crankshaft signal is normal or whether the primary ignition voltage and closing time are reached.
  • Page 147 Figure 3-51 Crankshaft + Primary ignition test...

  • Page 148: Primary Ignition + Injector Voltage

    Chapter 3 Automotive Test 3.6.3 Primary ignition + Injector voltage If there is a problem with the startup or it is suddenly off, it may be necessary to test the primary ignition and the fuel injector at the same time. If the primary ignition fails, no fuel injector signal will be generated. Use a P130A probe, one end is connected to channel 1 of the oscilloscope, and the other end is grounded with a black clip.
  • Page 149 Figure 3-52 Primary ignition + Injector voltage...

  • Page 150: Crankshaft + Camshaft + Injector + Secondary Ignition

    Chapter 3 Automotive Test 3.6.4 Crankshaft + Camshaft + Injector + Secondary Ignition Use a BNC to banana cable, one end is connected to channel 1 of the oscilloscope, the other end is grounded with a black plug, and the red connector is pierced into the signal line of the crankshaft sensor with a needle; Use a BNC to banana cable, one end is connected to channel 2 of the oscilloscope, the other end is grounded with a black plug, and the red connector is pierced into the signal line of the camshaft sensor with a needle;...
  • Page 151 Figure 3-53 Combination test of Crankshaft + Camshaft + Injector + Secondary ignition...

  • Page 152: Chapter 4 Horizontal System

    Chapter 4 Horizontal System Chapter 4 Horizontal System This chapter contains the detailed information of the horizontal system of the oscilloscope. You are recommended to read this chapter carefully to understand the set functions and operation of the horizontal system of the ATO series oscilloscope.
  • Page 153 Figure 4-1 Horizontal system...

  • Page 154: Move The Waveform Horizontally

    Chapter 4 Horizontal System Move the Waveform Horizontally Put one finger on the waveform display area to swipe left and right, for the coarse adjustment of the waveform position horizontally of all analog channels; after moving the waveform, tap the fine adjustment button in the lower left corner of the screen for fine adjustment.

  • Page 155: Adjust The Horizontal Time Base (Time/Div)

    Adjust the Horizontal Time Base (time/div) Method 1: Soft Keys buttons to adjust the horizontal time base of all analog channels (current channels). Tap button to increase the horizontal time base; tap button to zoom out the horizontal time base (see Figure 4-3 Adjust the Horizontal Time Base).
  • Page 156 Chapter 4 Horizontal System Figure 4-3 Adjust the Horizontal Time Base Method 2: Time Base Knob to open the time base list (see Figure 5-4 Horizontal Time Base List), then tap the list to select the appropriate time base. The time base with the blue filled background is the currently selected time base.

  • Page 157: Pan And Zoom Single Or Stopped Acquisitions

    Figure 4-4 Horizontal Time Base Knob Pan and Zoom Single or Stopped Acquisitions After the oscilloscope is stopped, the stopped display screen may contain several acquired data with useful information, but only the data in the last acquisition can be horizontally moved and zoomed. The data of the single...

  • Page 158: Roll, Xy

    Chapter 4 Horizontal System acquisition or stopped acquisition is moved horizontally and zoomed. For details, refer to “5.1 Move the Waveform Horizontally” and “5.2 Adjust the Horizontal Time Base (time/div)”. Roll, XY In the main menu, tap the soft key , then select the desired time base mode.
  • Page 159 In YT mode, the relative relationship between vertical voltage and horizontal time is displayed. Y axis represents the voltage, X axis represents the time, and the waveform is displayed after triggering (waveform displayed from left to right). Note: When the time base is large (such as 200ms and above), sometimes the waveform will not be displayed for a long time;...
  • Page 160 Chapter 4 Horizontal System Figure 4-6 ROLL Mode In ROLL mode, press to stop waveform display; press again to clear waveform display and restart acquisition; press to execute single sequence, it will stop automatically after completing a full screen acquisition. ROLL mode is generally used to observe waveforms with frequencies below 5 Hz.
  • Page 161 ROLL mode is defaulted as open. When the time base is greater than 100ms, it automatically enters the ROLL mode. If the signal to be triggered under a large time base needs to be viewed, turn off the ROLL mode. Roll mode on and off: In the main menu, tap the soft key .
  • Page 162 Chapter 4 Horizontal System XY——XY Mode The vertical amount of CH1 is displayed on the horizontal axis in XY mode, and the vertical amount of CH2 is displayed on the vertical axis (see Figure 4-8 XY Mode). You can use XY mode to compare the frequency and phase relationship of two signals. XY mode can be used for sensors to display stress-displacement, flow-pressure, voltage-frequency or voltage- current, for example: plotting a diode curve.
  • Page 163 Figure 4-8 XY Mode XY Mode Example This exercise shows the usual practice of XY display mode by measuring the phase difference between two signals of the same frequency using the Lissajous method.
  • Page 164 Chapter 4 Horizontal System Connect sine wave signals to CH1 and connect sine wave signals of the same frequency and different phases to CH2. Press “Auto” set button, tap “Display” in the main menu, then select “XY” in “Time Base”. Drag signals so that they are centered on the display screen.
  • Page 165 Figure 4-9 XY Time Base Mode Signal, Center on the Display Screen Tap the “Cursor” button to open the horizontal cursor. Set the cursor y2 at the top of the signal and the cursor y1 at the bottom of the signal. Record the Δy value in the upper right corner of the screen.
  • Page 166 Chapter 4 Horizontal System Figure 4-10 Phase Difference Measurement and Using the Cursor The following formula is used to calculate the phase difference. For example, if the first Δy value is 9.97V, the second Δy value is 5.72V:...

  • Page 167: Zoom Mode

    Zoom Mode Zoom is a horizontally expanded version of the normal display. Open the zoom function, the display is divided into two parts (see Figure 4-11 Zoom Interface). The upper part of the display screen shows the normal display window view and the lower part shows the zoomed display window.
  • Page 168 Chapter 4 Horizontal System Zoom window view is the enlarged portion of the normal display window. You can use “Zoom” to view a portion of the normal window that is horizontally expanded to learn more about signal analysis. Zoom on/off: Open the pull-up menu and tap button to turn the zoom function on/off.
  • Page 169 The minimum time base is displayed in the normal window when the waveform in the screen is exactly within the memory depth. If the current time base is smaller than the minimum time base in the normal window at the current memory depth, when the zoom window is opened, the time base in the normal window is automatically set to the minimum time base in the normal window at the current memory depth.

  • Page 170: Chapter 5 Vertical System

    Chapter 5 Vertical System This chapter contains the detailed information of the vertical system of the oscilloscope. You are recommended to read this chapter carefully to understand the set functions and operation of the vertical system of the ATO series oscilloscope.
  • Page 171 The figure below shows the “CH1 Channel Menu” displayed after opening the CH1 channel menu. Figure 5-1 Channel Menu Display Interface The ground level of each displayed analog channel signal is indicated by the channel indicator icon on the far left of the display screen.

  • Page 172: Open/Close Waveform (Channel, Math, Reference Waveforms)

    Chapter 5 Vertical System 5.1 Open/Close Waveform (Channel, Math, Reference Waveforms) The channel icons on the right side of the oscilloscope waveform display area (swipe up or down to switch to math channel and reference channel) correspond to the six channels of CH1, CH2, CH3, CH4, math function and reference channel.
  • Page 173 Figure 5-2 Current Channel and Non-Current Channel The display content of the oscilloscope channel display interface includes the vertical scale, vertical scale sensitivity button, coupling mode, invert, bandwidth limitation of the channel, as shown in Figure 5-3.
  • Page 174 Chapter 5 Vertical System Figure 5-3 Channel Display Interface When CH1 is on, but the state is not the current channel, tap CH1 waveform or vertical sensitivity or channel indicator or vertical sensitivity button or current channel selection button to set CH1 as the current channel, as shown in Figure 5-4.
  • Page 175 Figure 5-4 Channel Open, Close and Switching...
  • Page 176 Chapter 5 Vertical System Figure 5-5 Using the Current Channel Selection Button Tap the current channel icon at the bottom of the screen to pop up the current channel switching menu and press the button to light it up, as shown in Figure 5-5. Tap the button in the menu to switch the current channel. When this function is opened:...

  • Page 177: Adjust Vertical Sensitivity

    the current channel may be switched in the channel switching menu; the current channel menu can be moved anywhere on the screen; only the open channel is displayed in the channel switching menu; when the math or reference waveform is opened, the current channel switching menu is automatically opened. 5.2 Adjust Vertical Sensitivity Tap the vertical sensitivity buttons on the right side of the channel icon to adjust the vertical display...

  • Page 178: Adjust Vertical Position

    Chapter 5 Vertical System The vertical sensitivity coefficient adjusts the vertical sensitivity of the analog channel in steps of 1-2-5 (the probe attenuation coefficient is 1X), and the vertical sensitivity range of 1:1 probe is 1mV/div-10V/div (optionally minimum at 500uV/div). 5.3 Adjust Vertical Position The method of adjusting vertical position is as follows: Coarse adjustment: In the waveform display area, hold the waveform and put one finger to slide up and down...
  • Page 179 The channel menu is shown in Figure 5-6. Channel waveform inversion, channel bandwidth limit, probe type, probe attenuation factor, channel coupling mode, channel on/off can be set in the vertical menu. Figure 5-6 Channel menu...

  • Page 180: Set Channel Coupling

    Chapter 5 Vertical System 5.4.1 Set Channel Coupling Tap the icon under “Signal” and select “DC”, “AC” channel coupling modes in the pop-up box. DC: DC coupling. Both the DC component and the AC component of the measured signal can pass, and can be used to view waveforms as low as 0 Hz without large DC offset.
  • Page 181 Figure 5-7 DC Coupling Figure 5-8 AC Coupling Note: This setting is only valid for the current channel. To switch from the current channel, just tap the channel icon, channel indicator icon or horizontal position pointed by the channel indicator icon for direct switching. You do not need to exit the menu.

  • Page 182: Set Bandwidth Limit

    Chapter 5 Vertical System 5.4.2 Set Bandwidth Limit Open the channel menu, find the “Bandwidth” selection box in the channel menu, set bandwidth limit, high-pass filtering and low-pass filtering as needed. Full Bandwidth: Allows signals of all frequencies to pass. Low pass: Only signals below the currently set frequency upper limit are allowed to pass.

  • Page 183: Waveform Inversion

    Figure 5-9 Full Bandwidth Figure 5-10 Low Pass 5.4.3 Waveform Inversion After selecting “Invert”, the voltage value of the displayed waveform is inverted. Inversion affects the way the channel is displayed. When using a basic trigger, you need to adjust the trigger level to keep the waveform stable.

  • Page 184: Set Probe Type

    Chapter 5 Vertical System Figure 5-11 Before Inversion Figure 5-12 After Inversion 5.4.4 Set Probe Type Probe types are divided into voltage probe and current probe. Probe type adjustment steps: Open the channel menu, find the “Probe Type” checkbox in the channel menu, then select:...

  • Page 185: Set Probe Attenuation Coefficient

     Vol - corresponding the voltage probe.  Cur - corresponding the current probe. 5.4.5 Set Probe Attenuation Coefficient When measuring with a probe, the correct measurement result can only be obtained by setting the correct probe attenuation ratio. In order to match the actual probe attenuation ratio, it is necessary to adjust the channel attenuation factor correspondingly under the channel menu.

  • Page 186: Labels

    Chapter 5 Vertical System Probe attenuation ratio / Menu attenuation ratio 200:1 200x 500:1 500x 10:1 1000:1 20:1 2000:1 50:1 5000:1 100:1 100x 10000:1 10kx Table 5-1 Probe Attenuation Ratio Correspondence Table 5.4.6 Labels Labels can be added to each analog channel as needed, and the added label is displayed behind the channel indicator.
  • Page 187 Figure 5-13 Label Note: Customization supports up to 32 characters.

  • Page 188: Chapter 6 Trigger System

    Chapter 6 Trigger System This chapter contains the detailed information of the trigger system of the oscilloscope. You are recommended to read this chapter carefully to understand the set functions and operation of the trigger system of the ATO series oscilloscope.

  • Page 189: Trigger And Trigger Adjustment

    6.1 Trigger and Trigger Adjustment What is Trigger? The oscilloscope can capture a waveform only when it meets a preset condition first. This action of capturing the waveform according to the condition is Trigger. The so-called capture waveform is that the oscilloscope grabs a signal and displays it.
  • Page 190 Chapter 6 Trigger System The oscilloscope can stably display a periodic signal. Figure 6-1 Stably Displayed Periodic Signal Figure 6-2 Non-Stably Displayed Periodic Signal...
  • Page 191 Grab the segment you want to observe from a fast and complex signal Figure 6-3 Abnormal Signal in Periodic Signals Figure 6-4 Abnormal Signal Captured by Setting Trigger Level...
  • Page 192 Chapter 6 Trigger System What is Forced Trigger? When the oscilloscope does not meet the trigger condition, the artificial or automatic oscilloscope trigger is the forced trigger. It means that the oscilloscope only grabs a signal segment for display regardless of whether the condition is met or not.
  • Page 193 Figure 6-5 Oscilloscope Trigger Mode Setting If a signal feature is not understood, the oscilloscope should be set as “Auto” mode, which can ensure that the oscilloscope can also display the waveform when other trigger settings are not correct. Although the waveform is not necessarily stable, it can provide the intuitive judgment for our further adjustment of the oscilloscope.
  • Page 194 Chapter 6 Trigger System When we set a specific trigger condition for a specific signal, especially when the time interval for satisfying the trigger condition is long, we need to set the trigger mode to “Normal” so as to prevent the oscilloscope from automatic forced trigger.
  • Page 195 messages. The number of delay ranges available (pre-trigger and post-trigger messages) depends on the selected time base and memory depth. Adjust trigger position (horizontal delay) Fingers swipe left and right in the waveform display area, the trigger point will move horizontally, the horizontal delay time changes, and the delay time is displayed at the top center of the screen, that is, the distance between the trigger point and the center line...
  • Page 196 Chapter 6 Trigger System When the trigger point is located on the left side to the center line of the waveform display area, the delay time is displayed as a positive value; When the trigger point is located on the right side to the time reference point , and the delay time is displayed as a negative value;...
  • Page 197 Figure 6-8 Trigger Level Adjust trigger level The trigger level can be coarsely adjusted and finely adjusted. Coarse adjustment: Slide up and down in the trigger level adjustment area.
  • Page 198 Chapter 6 Trigger System Fine adjustment: Tap the fine adjustment button in the lower left corner of the screen for fine adjustment of the trigger level. Trigger setting shortcut Left swipe from trigger level slide bar to open trigger setting shortcut, which includes trigger source, trigger mode etc.
  • Page 199 Set trigger hold-off time The trigger hold-off time can set up the waiting time of the oscilloscope after the trigger and before the trigger circuit is reconnected. During hold-off time, the oscilloscope does not re-trigger until the end of the hold-off time, and the hold-off time can be used to stably trigger complex waveforms.
  • Page 200 Chapter 6 Trigger System Set trigger hold-off time: Tap “Trigger” on the main menu to open the trigger menu. Under “Common”, tap the box after “Rejection Time” to open the hold-off time adjustment interface. The trigger time is displayed on the upper left, the fine adjustment time scale is displayed on the upper right, and the coarse time scale is displayed below, as shown in Figure 6-11.
  • Page 201 It is typically used for complex waveforms. The correct rejection setting is usually slightly smaller than one repetition of the waveform. Setting the hold-off time to this time can become the only trigger point for the repetitive waveform. Changing the time base setting will not affect the trigger hold-off time. Using Zoom function, you can tap “Run/Stop”...

  • Page 202: Edge Trigger

    Chapter 6 Trigger System 6.2 Edge Trigger When the edge of trigger signal reaches a certain trigger level, the set signal is triggered and generated. Trigger occurs on either edge of the rising edge (indicating icon at the top of the screen), falling edge ( ) or dual edge ( ), and the trigger level can be set to change the vertical position of the trigger point on the trigger edge, namely the intersection point of the trigger level line and the signal edge.
  • Page 203 Rising edge Set signal trigger on the rising edge Slope Falling edge Set signal trigger on the falling edge Dual edge Set signal trigger on either rising edge or falling edge AC and DC components getting through trigger signals Filter out the DC component of trigger signals HF rejection Suppress signals above 50KHz in trigger signals Coupling...
  • Page 204 Chapter 6 Trigger System  Trigger coupling mode: DC;  Trigger edge: rising. Figure 6-12 Edge Trigger Setting Menu Adjust the trigger level to ensure that the waveform can be triggered stably, for example, the trigger level is set to 1V. Trigger coupling description When the edge trigger setup menu is opened, the trigger coupling option is displayed below the menu.
  • Page 205 Figure 6-13 Trigger Coupling Menu DC coupling - allows DC and AC signals to enter the trigger path. AC coupling - removes any DC offset voltage from the trigger waveform. When the waveform has a large DC offset, stable edge triggering can be achieved using AC coupling. HFRej.

  • Page 206: Pulse Width Trigger

    Chapter 6 Trigger System When there is low frequency noise in the waveform, stable edge triggering can be obtained using LF rejection coupling. NoiseRej. (Noise Rejection Coupling) - Noise rejection can add extra hysteresis to the trigger circuit. By increasing the trigger hysteresis band, the possibility of noise triggering can be reduced. But it also reduces the trigger sensitivity, so triggering the oscilloscope requires a slightly larger signal.
  • Page 207 Description Trigger Option Setting Set CH2 as trigger signal source Set CH3 as trigger signal source Set CH4 as trigger signal source Trigger on setting the positive pulse width of signals Positive Polarity Trigger on setting the negative pulse width of signals Negative Trigger when the signal pulse width is smaller than pulse width T ＜T...
  • Page 208 Chapter 6 Trigger System Trigger steps of positive polarity pulse width: (taking CH1 as an example) Tap “Trigger” on the main menu to open the trigger menu, select the pulse width trigger in the trigger type, and set the pulse width trigger as follows, as shown in Figure 6-14: ...
  • Page 209 Figure 6-14 Pulse Width Trigger Setting Menu Pulse width trigger setting description: 1) Pulse polarity selection The selected pulse polarity icon is displayed in the upper right corner of the display screen. The positive pulse is higher than current trigger level (CH1 positive pulse indication icon ), and the negative pulse is lower than current trigger level (CH1 negative pulse indication icon ).
  • Page 210 Chapter 6 Trigger System polarity pulse, if the restrictions are true, the trigger will happen on the high-to-low transition of the pulse; when triggered on negative polarity pulse, if the restrictions are true, the trigger will happen on the low-to-high transition.
  • Page 211 Time restrictions that can set in the trigger condition: <, >, ＝, ≠.  Smaller than the time value (<) For example, for positive pulse, if it is set as T<80ns, the trigger will happen stably only when the pulse width is smaller than 80ns (Figure 6-16 Trigger Time T<80ns).
  • Page 212 Chapter 6 Trigger System Trigger Figure 6-17 Trigger Time T>80ns  Equal to the time value (=) For example, for positive pulse, if it is set as T=80ns, the trigger will happen stably only when the pulse width is equal to 80ns (Figure 6-18 Trigger Time T=80ns). Trigger Figure 6-18 Trigger Time T=80ns ...
  • Page 213 For example, for positive pulse, if it is set as T≠80ns, the trigger will happen stably only when the pulse width is not equal to 80ns (Figure 6-19 Trigger Time T≠80ns). Trigger Figure 6-19 Trigger Time T≠80ns The trigger pulse width time can be set as 8ns~10s. Tap the pulse width time setting box to pop up the time adjustment interface (as shown in Figure 6- 20), and adjust the pulse width time.

  • Page 214: Logic Trigger

    Chapter 6 Trigger System 6.4 Logic Trigger Trigger happens when the level between analog channels satisfies a certain logical operation (AND, OR, NAND, NOR) and the signal voltage reaches the set trigger level and the trigger logic width (8ns~10s). Logic trigger menu descriptions are shown in the table below: Trigger Option Setting...
  • Page 215 Set CH3 as low None Set CH3 as none High Set CH4 as high Set CH4 as low None Set CH4 as none Select the logic of trigger source as “AND” Select the logic of trigger source as “OR” Trigger Logic NAND Select the logic of trigger source as “NAND”...
  • Page 216 Chapter 6 Trigger System Notes: Conditions of greater than, smaller than, equal to or not equal to indicating that the error is 6%. Logic trigger operation steps between channels: Tap “Trigger” on the main menu to open the trigger menu, select logic trigger in the trigger type, and set the logic trigger as follows, as shown in Figure 6-21: ...
  • Page 217 Figure 6-21 Logic Trigger Setting Menu Logic trigger setting description: Logic level setting After trigger source, select High, Low and None for the channel. The corresponding trigger level value is displayed in the upper right corner of the display screen.
  • Page 218 Chapter 6 Trigger System High: means a value higher than the current trigger level, and the icon indication is “ ”. Low: means a value lower than the current trigger level, and the icon indication is “ ”. None: This channel is invalid. Switch the trigger level channel: Tap the trigger level slide bar arrow or use trigger setting shortcut Logic conditions True: Trigger when the logic changes to true value...
  • Page 219 Figure 6-22 Trigger Level Adjustment Trigger pulse width time can be set as 8ns~10s. Tap the time setting box ( ) to pop up the time adjustment interface and adjust the logic time. Please refer to the Pulse Width Adjustment section for details.

  • Page 220: Nth Edge Trigger

    Chapter 6 Trigger System 6.5 Nth Edge Trigger When the trigger signal is triggered on the Nth edge after the specified idle time, it is Nth edge trigger. Menu descriptions of the Nth edge trigger are shown in the table below: Trigger Option Setting Description...
  • Page 221 Set CH1 to trigger on the 5th rising edge after 500us. The steps are as follows: Tap “Trigger” on the main menu to open the trigger menu, select Nth edge trigger in the trigger type, and set the Nth edge trigger as follows, as shown in Figure 6-23: ...
  • Page 222 Chapter 6 Trigger System Figure 6-23 Nth Edge Trigger Menu Adjust the trigger level to ensure that the waveform can be triggered stably, for example the trigger level is set to 1.44V.

  • Page 223: Runt Trigger

    6.6 Runt Trigger By setting the high and low thresholds, trigger on a pulse that cross one threshold but fail to cross a second threshold. There are two types available: positive short pulse and negative short pulse. Positive Short Pulse High Level Low Level Negative Short Pulse...
  • Page 224 Chapter 6 Trigger System Trigger Option Setting Description Set CH3 as trigger signal source Set CH4 as trigger signal source Set signal to trigger on positive runt pulse Positive Set signal to trigger on negative runt pulse Polarity Negative Set signal to trigger on either positive or negative runt pulse <T Trigger when the signal pulse width is smaller than pulse width T >T...

  • Page 225: Slope Trigger

    Figure 6-25 Runt Trigger Setting Menu 6.7 Slope Trigger Slope Trigger means trigger when the waveform reaches a set time condition from one level to another. Positive slope time: Time takes for the waveform to go from low to high.
  • Page 226 Chapter 6 Trigger System Negative slope time: Time takes for the waveform to go from high to low. As shown in Figure 6-26 High Level Positive Slope Time Negative Slope Time Figure 6-26 Positive/Negative Slope Time When the trigger signal slope has the hold time (8ns~10s), the trigger type on the top of the screen is only the icon , and trigger happens when the set condition is reached.
  • Page 227 Trigger Option Setting Description Set CH3 as trigger signal source Set CH4 as trigger signal source Set trigger on positive signal slope Rising Set trigger on negative signal slope Edge Falling Set trigger on detecting a signal slope change <T Trigger when the signal slope hold time is smaller than T >T Trigger when the signal slope hold time is greater than T...
  • Page 228 Chapter 6 Trigger System Tap “Trigger” on the main menu to open the trigger menu, select the slope trigger in the trigger type, and set the slope trigger as follows, as shown in Figure 6-27:  Trigger source: CH1;  Edge: Rise; ...
  • Page 229 Figure 6-27 Slope Trigger Setting Menu The slope hold time can be set as 8ns~10s. Note: A stable trigger waveform can only be obtained by selecting the channel to which signals are connected as trigger source.

  • Page 230: Timeout Trigger

    Chapter 6 Trigger System 6.8 Timeout Trigger Timeout trigger happens when the time from the intersection of signal and trigger level and above (or below) the trigger level reaches the set time, as shown in Figure 6-28: Duration Set Level Figure 6-28 Timeout Trigger Schematics Timeout trigger menu descriptions are shown in the table below: Trigger...
  • Page 231 Set CH1 as trigger signal source Trigger Set CH2 as trigger signal source Source Set CH3 as trigger signal source Set CH4 as trigger signal source Select to count time when the rising edge of input signal gets through the Positive trigger level Select to count time when the falling edge of input signal gets through the...
  • Page 232 Chapter 6 Trigger System Tap “Trigger” on the main menu to open the trigger menu, select timeout trigger in the trigger type, and set the timeout trigger as follows, as shown in Figure 6-29:  Trigger source: CH1;  Edge: positive; ...

  • Page 233: Video Trigger

    Figure 6-29 Time-out Trigger 6.9 Video Trigger The triggering method for video signals depends on video formats. Generally, there are PAL/625, SECAM, NTSC/525, 720P, 1080I and 1080P formats. The video trigger can be triggered at different voltage scales, and the...
  • Page 234 Chapter 6 Trigger System appropriate voltage scale can be adjusted as needed to observe the waveform. The video trigger menu descriptions are shown in the table below: Trigger Setting Description Option Set CH1 as trigger signal source Trigger Set CH2 as trigger signal source Source Set CH3 as trigger signal source Set CH4 as trigger signal source...
  • Page 235 525/NTSC Based on NTSC signal trigger 720P Base on 720P(50Hz, 60Hz) signal trigger 1080I Base on 1080I(50Hz, 60Hz) signal trigger Base on 1080P (24Hz, 25Hz, 30Hz, 50Hz, 60Hz) 1080P signal trigger Line Trigger lines Trigger on the rising edge of the first tooth pulse Odd fields in odd fields Trigger on the rising edge of the first tooth pulse...
  • Page 236 Chapter 6 Trigger System 625 line (PAL,SECAM) 263 odd line 262 even line Lines Trigger on a specified line in odd or even fields (NTSC) 750 line (720P) 1125 line (1080I,1080P) Set CH1 as trigger channel, positive polarity, NTSC standard video, all fields trigger, and the steps are as follows: Tap “Trigger”...
  • Page 237  Standard: 525/NTSC;  Trigger: Odd fields Figure 6-30 Video Trigger Prompts:  In order to better observe the waveform details in the video signal, first set the memory depth to be larger.

  • Page 238: Serial Bus Trigger

    Chapter 6 Trigger System  During the trigger debugging of the video signal, since the digital oscilloscope has multi-level gray scale display function, different brightness can reflect the frequency of different parts of the signal. Experienced users can quickly judge the quality of the signal during the debugging process and find abnormal conditions. 6.10 Serial Bus Trigger Please refer to Chapter 12 Serial Bus Trigger and Decode (Optional)

  • Page 239: Chapter 7 Analysis System

    Chapter 7 Analysis System This chapter contains the detailed information of the analysis system of the oscilloscope. You are recommended to read this chapter carefully to understand the set functions and operation of the analysis system of the ATO series oscilloscope.

  • Page 240: Automatic Measurement

    Chapter 7 Analysis System 7.1 Automatic Measurement Measurement setting Slide down from top, open the main menu, tap “Measure” to enter the measurement menu. There are 23 measurement items on the measurement menu. Measurement menu, selected measurement item display and measurement item display are shown in Figure 7-1:...
  • Page 241 Figure 7-1 Automatic Measurement Menu Automatic measurement Select channel: Select the channel to be measured above the measurement menu.
  • Page 242 Chapter 7 Analysis System Select measurement: Select the desired measurement item on the measurement menu. The selected measurement item is displayed in the “Selected Parameters” display area below. Cancel measurement item: In the “Selected Parameters” display area below measurement menu, tap the measurement item to be cleared;...
  • Page 243 Figure 7-2 Pull-up Menu Figure 7-3 All Measurements...
  • Page 244 Chapter 7 Analysis System Rise Time Fall Time Threshold Upper Limit Negative Pulse Positive Pulse Width Width Threshold Median Threshold Lower Limit Period Figure 7-4 Time Parameter Period Time of the first complete signal cycle in the waveform Frequency Reciprocal to the cycle time Rise time Time required for the first rising edge of the waveform to rise from the amplitude of 10% to 90%...
  • Page 245 Fall time Time required for the first falling edge of the waveform to rise from the amplitude of 10% to 90% Delay Time delay between rising or falling edges of channels may be measured, and there are nine effective measurement combinations Delay Figure 7-5 Delay Measurement Schematics...
  • Page 246 Chapter 7 Analysis System The left channel is defaulted as the current channel, and other channels can be selected by the channel area that has been opened (except the reference channel); there are four edge selections: first rising edge, first falling edge, last rising edge, last falling edge .
  • Page 247 Positive pulse width Measured value of the first positive pulse in the waveform, taking the time between two 50% amplitude points Negative pulse width Measured value of the first negative pulse in the waveform, taking the time between two 50% amplitude points Burst width Duration of a burst measured over the entire waveform Overshoot...
  • Page 248 Chapter 7 Analysis System Timing measurement. The amount of time that one waveform leads or lags another waveform, expressed in degrees where 360°comprises one waveform cycle. Period Delay Figure 7-6 Phase Measurement Schematics Peak-peak In the entire waveform measurement, peak-peak = max - min Amplitude In the entire waveform measurement, amplitude = high (100%) - low (0%) The figure below shows voltage measurement points.
  • Page 249 The channel probe type setting is used to set the measurement unit for each input channel to Volts or Amperes. Refer to “5.4.4 Set Probe Type”. Amplitude Peak-peak Figure 7-7 Voltage Measurement High Take 100% in the entire waveform, and calculated using either the min/max or histogram method. Take 0% in the entire waveform, and calculated using either the min/max or histogram method.
  • Page 250 Chapter 7 Analysis System Highest positive peak measured over the entire waveform Highest negative peak measured over the entire waveform True root mean square value over the entire waveform C RMS True root mean square value of the first cycle in the waveform Mean Arithmetic mean over the entire waveform C mean...
  • Page 251 Note: If the waveform required for measurement is not fully displayed on the screen, “Forward Clipping” or “Negative Clipping” is displayed at the position of the measured value. When the math function is operated, if source channel waveform is fully displayed, and the math waveform appears to be off the screen, the measured value of math waveform will not be influenced.
  • Page 252 Chapter 7 Analysis System the historical data of all measurement items and perform statistics again, as shown in Figure 7-8: Figure 7-8 Frequency Meter Measurement Menu Open...

  • Page 253: Frequency Meter Measurement

    7.2 Frequency Meter Measurement Open the main menu, tap Measure and Counter to enter the hardware frequency meter setting menu, and select the channel to be measured, as shown in Figure 7-9. The measured value is displayed in the upper left corner of the screen, as shown in Figure 7-10.

  • Page 254: Cursor

    Chapter 7 Analysis System Figure 7-10 Frequency Meter Measurement 7.3 Cursor Open cursor and place it on the measurement point to read the waveform measurement value. There are two types of cursors: horizontal cursor and vertical cursor. The horizontal cursor measures the vertical direction magnitude, and the vertical cursor measures the horizontal direction magnitude, as shown in Figure 7-11.
  • Page 255 Figure 7-11 Cursor Measurement Note: △ reading: indicates the difference between two cursor positions. Voltage readings after Y1, Y2: indicate the position of activated horizontal cursors relative to the zero potential.
  • Page 256 Chapter 7 Analysis System Time readings after X1, X2: indicate the position of activated vertical cursors relative to the trigger point. 1/△X: frequency S reading. Indicates the quotient of △ (voltage difference) of horizontal cursors and Δ (time difference) of vertical cursors, that is, the slope of the intersection of the four cursors.
  • Page 257 Figure 7-12 Open Cursor Selection Box and Close Cursor Vertical cursor movement descriptions: Use a single finger to press and hold the cursor indicator line on the screen to make coarse adjustment to the cursor; tap the fine adjustment button in the lower left corner of the screen to fine-adjust the cursor that has just been adjusted.
  • Page 258 Chapter 7 Analysis System Cursor linkage: When the cursor is opened, two finger slide and enter the cursor linkage state. Note: During the sliding process, the current operation is changed unless the initial two fingers leave the screen. If one finger leaves the screen and the other finger does not leave, the current linkage adjustment is continued.

  • Page 259: Phase Rulers

    Figure 7-13 Cursor Measurement Pulse Width Figure 7-14 In XY Mode, Cursor Measurement In the XY horizontal mode, X cursor displays CH1 value (V or A), and Y cursor displays CH2 value (V or A). 7.4 Phase Rulers The phase rulers help to measure the timing of a cyclic waveform on a scope view. Phase rulers measure relative to the start and end of a time interval that you specify.
  • Page 260 Chapter 7 Analysis System Figure 7-15 Phase Cursors...

  • Page 261: Chapter 8 Screen Capture, Memory Depth And Waveform Storage

    Chapter 8 Screen Capture, Memory Depth and Waveform Storage This chapter contains the detailed information of the screen capture function and memory depth of the oscilloscope. You are recommended to read this chapter carefully to understand the storage system of the ATO series oscilloscope.

  • Page 262: Screen Capture Function

    Chapter 8 Screen Capture, Memory Depth and Waveform Storage 8.1 Screen Capture Function The screen capture function can locally store the display information on the current display screen in picture format. Screen capture method: Slide upward from bottom to open pull-up menu. Tap the icon to have a screen capture in the oscilloscope application.
  • Page 263 Figure 8-1 Screen Capture Please refer to “13.7 Gallery” for details on viewing pictures.
  • Page 264 Chapter 8 Screen Capture, Memory Depth and Waveform Storage Timestamp and InverseColor Invert and time-stamp screenshots is possible in oscilloscope. Open the main menu, tap Save and enter Picture menu, turn off/on Timestamp and InverseColor button as desired. Figure 8-2 Timestamp & inverse color...

  • Page 265: Video Recording

    8.2 Video Recording The video recording function is similar to the screen capture function, and the display information of the current display screen can be stored locally in video format. Video recording method is sliding down from top in non-oscilloscope application, open pull-down menu, tap the screen to start recording, and count down to three seconds to complete the video recording, as shown in Figure 8-3.

  • Page 266: Waveform Storage

    Chapter 8 Screen Capture, Memory Depth and Waveform Storage Figure 8-3 Video Recording Method Figure 8-4 Video Recording Please refer to “13.7 Gallery” for details of viewing videos. 8.3 Waveform Storage The oscilloscope can save the analog channel or math channel waveform locally or in USB device. The file type can be WAV, CSV or BIN.
  • Page 267 The oscilloscope provides four reference channels, which can be called to load WAV format files into the reference channel and open the reference channel to display the reference waveform. Save reference file Slide down from top, open main menu and tap "Save" to open the menu. Save the reference waveform interface of the specified channel as follows: Figure 8-5 Save CH2 Reference Waveform Interface...
  • Page 268 Chapter 8 Screen Capture, Memory Depth and Waveform Storage Location: Stored locally and in USB device. File types: WAV, CSV, and BIN. File name: The initial file name is displayed as year + month + day + storage serial number. Press the file name box to pop up the virtual keyboard, tap “Backspace”...
  • Page 269 Save the reference waveform by steps as follows: The current channel is set to the channel to be saved, which can be analog channel, math channel or reference. In the main menu, tap "Save" to enter the save menu. In the Save menu, tap "Save" to open the Save Reference Waveform menu and make the following settings: ...
  • Page 270 Chapter 8 Screen Capture, Memory Depth and Waveform Storage In the Save Reference Waveform menu, tap R* (R1, R2, R3, R4) button to save the current channel waveform directly to the corresponding reference channel, and the save success prompt will pop up. The file name is displayed as Ref* in the reference channel (* is the corresponding reference channel name).
  • Page 271 Figure 8-6 Delete Reference Files CSV files CSV file structure...
  • Page 272 Chapter 8 Screen Capture, Memory Depth and Waveform Storage CSV format contains the basic information of the saved data: save time, file name, data length, sampling interval, trigger time, source, vertical scale, vertical offset, vertical accuracy, horizontal time base, horizontal accuracy, probe multiples.

  • Page 273: Oscilloscope Setting Save

    to display 140K times of sampling using 600-pixel columns. The oscilloscope extracts 140K samples into 600-pixel columns, and this extraction will track Min and Max values of all points represented by any given column. These Min and Max values will be displayed in this screen column. The similar process is applied to reduce sampled data and produce records that can be used to perform various analyses, such as measurements and CSV data.
  • Page 274 Chapter 8 Screen Capture, Memory Depth and Waveform Storage Figure 8-7 oscilloscope setting save Tap the black box area to rename save settings, tap the Save button to store, the Recovery button to restore the settings.

  • Page 275: Chapter 9 Math And Reference

    This chapter contains the detailed information of the MATH operation and reference channel of the oscilloscope. You are recommended to read this chapter carefully to understand the setting functions and operations of the MATH and reference channels of the ATO series oscilloscope.  Dual waveform calculation ...

  • Page 276: Dual Waveform Calculation

    Chapter 9 MATH and Reference 9.1 Dual Waveform Calculation Figure 9-1 MATH Channel Waveform Display math waveform Swipe up or down at the channel selection area to enter the second channel selection area. Tap the soft key open the math channel. After the math waveform is opened, the current channel selector is automatically opened.
  • Page 277 Left swipe math channel icon to open the math channel menu. While opening math for the first time, the math operation is defaulted as the dual channel calculation. Math operation prompt If the analog channel or math function is clipped (not fully displayed on the screen), the resulting math function will also be clipped.
  • Page 278 Chapter 9 MATH and Reference For details of movement, vertical sensitivity adjustment, time base adjustment and vertical expansion reference of the math channel, please refer to “Chapter 4 Horizontal System” and “Chapter 5 Vertical System”. The vertical sensitivity, unit and time base corresponding to the math waveform are displayed in the channel area of the math channel.
  • Page 279 Note: If the units of two operation source channels are different and the unit combination cannot be identified, the unit of math function will be displayed as? (undefined). Math operators Math operators perform arithmetic operations on the analog input channels. Addition or subtraction If addition or subtraction is selected, the values of function sources 1 and 2 will be added or subtracted point by point and the results will be displayed.
  • Page 280 Chapter 9 MATH and Reference Figure 9-2 Mathematical Operation of CH1 adding CH2 Multiplication or division When multiplication or division is selected, the values of function sources 1 and 2 values will be multiplied or divided point by point and the results will be displayed. Multiplication is useful when viewing the power relationship, if one of the channels is proportional to the current.

  • Page 281: Fft Measurement

    9.2 FFT Measurement FFT is used to calculate the Fast Fourier Transform using the analog input channel. FFT record specifies the digitization time of the source and converts it to the frequency domain. After selecting the FFT function, FFT spectrum is plotted as amplitude in V-Hz or dB-Hz on the oscilloscope display screen. The reading of the horizontal axis changes from time to frequency (Hz), while the unit of the vertical axis changes from volt to V or dB.
  • Page 282 Chapter 9 MATH and Reference Open FFT Swipe up or down at the channel selection area to enter the second channel selection area. Tap the soft key to open the math channel, left swipe to open math channel menu. spectrum type “Line/Decibel” to open the FFT window (see Figure 9-3 FFT Window). Tap the Operation Source box to select the channel for which FFT transform is required.
  • Page 283  Rectangular window This is the best window type for resolution frequencies that are very close to the same value, but this type is the least effective at accurately measuring the amplitude of these frequencies. It is the best type of measuring the spectrum of non-repetitive signals and measuring the frequency component close to DC.
  • Page 284 Chapter 9 MATH and Reference  Hanning window This is the best window type for measuring amplitude accuracy but less effective for resolving frequencies. Use Hanning to measure sinusoidal, periodic, and narrowband random noises. This window is used for measuring transients or bursts of signal levels before or after events with significant differences. ...
  • Page 285 different, resulting in high-frequency transient interruption at the junction. In the frequency domain, this effect is called leakage. Therefore, to avoid leakage, the original waveform is multiplied by a window function, forcing the values at the beginning and at the end to be zero. Note: Signals with DC components or deviations can cause errors or deviations in the FFT waveform components.
  • Page 286 Chapter 9 MATH and Reference Figure 9-4 Spectrum Amplitude as V-Hz Adjust FFT waveforms Waveform position...
  • Page 287  Select math channel as the current channel. After touching math waveform on the screen with one finger, adjust the waveform display position by dragging upward and downward, leftward and rightward, or tap the fine adjustment button in the lower left corner of the screen for fine adjustment ...

  • Page 288: Advanced Math

    Note: FFT waveform does not support automatic parameter measurement. Advanced Math ATO series oscilloscopes support user-defined editing formulas for waveform calculation. Support the input of functions, operators, channels, constants, variables, etc. The expression supports up to 36 characters. Click the corresponding button to input and edit the waveform (please click in order, the ones that are grayed out...
  • Page 289 Figure 9-5 Advanced Math...
  • Page 290 Chapter 9 MATH and Reference Type Description Item Remark Function Sqrt()、Abs()、Deg()、 Functions can be nested Rad()、Exp()、Diff()、 ln()、Sine()、Cos()、 Tan()、Intg()、Log()、 arcsin()、arccos()、 arctan() Channel Source Ch1、Ch2、Ch3、Ch4 Variable Source variable1、variable2 When a variable is written in the expression, the input box of the variable appears in the math menu, indicating that it can be input;...
  • Page 291 Variable value range -9.9999~9.9999, variable power range -9~9 Operator +、-、*、/、==、!=、＞、 ＜、≥、≤、&&、||、!( symbol brackets （、） Value Source 0、1、2、3、4、5、6、7、8、 9、.、π、E × Source Numerical f、p、n、u、m、K、M、G、T unit Table 9-2 List of Advanced Math...

  • Page 292: Reference Waveform Call

    Chapter 9 MATH and Reference 9.4 Reference Waveform Call Reference waveform call and close Swipe up or down at the channel selection area to enter the second channel selection area. Left swipe button to open the reference menu, see Figure 9-5. Figure 9-6 Reference Channel Menu...
  • Page 293 When there are already waveforms loaded into the reference channel, click “Open/Close” button to open or close the reference channel; the reference waveform is displayed in blue-violet, and the four stored waveforms can be displayed simultaneously, wherein the current reference waveform is brighter than non-current reference waveforms.
  • Page 294 Chapter 9 MATH and Reference If there are already files loaded into the reference channel, tap to open the reference channel of all loaded reference files; Right swipe to close all currently opened reference waveforms. A single reference channel may also be opened with the Open/Close button. Figure 9-7 Restore Reference Waveform...
  • Page 295 Close the reference waveform: In the reference menu, tap “Open/Close” button in R1 to close the reference waveform. Repeat step 1 to close other reference channels. Right swipe to turn off all reference waveforms. Reference waveform movement and time base adjustment The horizontal or vertical movement and zoom of reference waveforms are independent of analog channels, and the adjustments among different reference waveform channels are also independent of each other.

  • Page 296: Chapter 10 Display Settings

    This chapter contains the detailed information of the display settings and function buttons of the oscilloscope. You are recommended to read this chapter carefully to understand the display setting functions and operations of the ATO series oscilloscope.  Waveform setting ...
  • Page 297 In the main menu, tap Display button to enter display settings menu, as shown in Figure 10-1. Figure 10-1 Display Settings and Function Buttons...

  • Page 298: Waveform Settings

    Chapter 10 Display Settings 10.1 Waveform Settings Open the display menu, tap Waveform button to open the waveform display menu. This menu is used to set the display mode and brightness of waveform. The waveform display mode is divided into two types: dots and vectors. The waveform brightness percentage is adjustable, and the waveform display setting is shown in Figure 10-2.

  • Page 299: Persistence Setting

    Figure 10-3 Graticule Menu Display 10.3 Persistence Setting Open the display menu and tap Persist key to open the persistence settings menu. 1) Persistence setting In the persistence setting menu, select:  None: None - no persistence.  Auto: Auto — automatic persistence.
  • Page 300 Chapter 10 Display Settings  Normal: Normal - set the persistence time — After selecting the variable persistence, tap the box on the right of “Adjust” to pop up the persistence time selection box (Figure 10-4) and set the persistence time. It can be set between 10ms and 10s.
  • Page 301 Figure 10-4 Persist time adjust 2) Erase persistence To erase the previously acquired results from the display, tap key or adjust the horizontal time base and vertical sensitivity. The oscilloscope will erase the persistence display and start the cumulative acquisition again.

  • Page 302: Horizontal Expansion Center

    Chapter 10 Display Settings 10.4 Horizontal Expansion Center Horizontal expansion is divided into two types: screen center and trigger position: Screen center Select "Center" to adjust the time base waveform to expand or contract toward both sides with the screen center as the base point, and the delay time does not change.

  • Page 303: Time Base Mode Selection

    Figure 10-5 Color Temperature Open Mode 10.6 Time Base Mode Selection For details, please refer to “4.4 ROLL, XY“ in Chapter 4.

  • Page 304: Chapter 11 Sampling System

    Chapter 11 Sampling System This chapter contains the detailed information of the sampling system of the oscilloscope. You are recommended to read this chapter carefully to understand the setting and operation of the sampling system of the ATO series oscilloscope.

  • Page 305: Sampling Overview

    11.1 Sampling Overview To understand the sampling and sampling modes of the oscilloscope, you need to understand the sampling principle, aliasing, oscilloscope bandwidth and sampling rate, oscilloscope rise time, required oscilloscope bandwidth, and the influence of memory depth on the sampling rate. Sampling principle According to the Nyquist sampling principle, for a bandwidth-limited signal with the maximum frequency f , the...
  • Page 306 Chapter 11 Sampling System Figure 11-1 Aliasing Oscilloscope bandwidth and sampling rate The oscilloscope bandwidth usually refers to the lowest frequency at which the input signal sine wave is attenuated by 3dB (-30% amplitude error). For oscilloscope bandwidth, according to the sampling principle, the required sampling rate is f .
  • Page 307 Frequency Figure 11-2 Theoretical Brick-Wall Frequency Response However, digital signals have frequency components that exceed the fundamental frequency (the square wave consists of sine waves at fundamental frequency and an infinite number of odd harmonics), and for bandwidths of 500MHz and below, the oscilloscope typically has Gaussian frequency response.
  • Page 308 Chapter 11 Sampling System Aliasing Frequency Figure 11-3 Sampling Rate and Oscilloscope Bandwidth The oscilloscope bandwidth is limited to 1/4 sampling frequency and reduces the frequency response above the Nyquist frequency. ≥4f Therefore, in fact, the oscilloscope sampling rate should be 4 times or more of its bandwidth: f .
  • Page 309 Oscilloscope rise time The oscilloscope rise time is closely related to its bandwidth. The rise time of an oscilloscope with Gaussian type frequency response is approximately 0.35/f (based on the standard from 10% to 90%). The oscilloscope rise time is not the fastest edge speed that an oscilloscope can accurately measure. It is the fastest edge speed that the oscilloscope can produce.
  • Page 310 Chapter 11 Sampling System According to Dr. Howard W. Johnson’s book “High-Speed Digital Design–A Handbook of Black Magic”, all fast edges have wirelessly continuous frequency components. However, there is a turning point (or “inflection point”) in the fast edge spectrum at which frequency components above f are negligible in determining the knee signal shape.

  • Page 311: Run/Stop Key And Single Seq Key

    =1.9xf knee Figure 11-4 Bandwidth Corresponding to Oscilloscope Measurement Accuracy 11.2 Run/Stop Key and Single SEQ Key Use softkeys in the button area to start and stop the oscilloscope acquisition system: Run/Stop button Single Sequence Acquisition button.  When the Run/Stop button is displayed in green, it indicates that the oscilloscope is running, that is, it meets the trigger condition and data acquisition is being performed.

  • Page 312: Select Sampling Mode

    Chapter 11 Sampling System To resume data acquisition, press the Run/Stop button again.  To capture and display single acquisition (whether the oscilloscope is running or stopped), tap the single sequence key for a single acquisition. 11.3 Select Sampling Mode Open the main menu, tap the sampling mode option under “Sampling”, and choose among the four sampling modes: normal, average, peak and envelope in the pop-up box.
  • Page 313 This mode produces the best display effects for most waveforms. Peak sampling mode In peak sampling mode, when the horizontal time base setting is low, the minimum and maximum sample values are retained to capture rare events and narrow events (with any noise expanded). This mode will display all pulses that are at least as wide as the sampling period.
  • Page 314 Chapter 11 Sampling System Figure 11-5 Sine Wave with Burr Figure 11-6 Sine Wave with Burr Normal Sampling Mode Peak Sampling Mode Use peak detection mode to find burrs Connect signal to the oscilloscope to be stably displayed. To find burr, select the peak sampling mode in Sampling Mode option in the Channel menu.
  • Page 315 In the menu, tap “Display” → “Persistence”, then tap “∞” (infinite persistence). The oscilloscope will restart sampling data and display them on the screen. Use the zoom mode to represent the characteristics of burr: Tap the “Zoom” button in the main menu to open the zoom window. To get a better resolution of burr, expand the time base to set the expanded portion of the normal window view around burr.
  • Page 316 Chapter 11 Sampling System The higher the average number is, the slower the response of the displayed waveform-to-waveform changes. A compromise must be made between the response speed of waveform versus the changes and the degree of noise reduction shown on the signal. Use average sampling mode Open the channel menu and select the average sampling mode in the sampling mode option.
  • Page 317 Figure 11-7 Waveform after choosing the average sampling mode, with average number 32 Envelope sampling mode In the envelope sampling mode, the superposition effect of several sampled waveforms can be observed. The maximum and minimum values of one signal can be captured in the specified N sample data, and the number of waveform superpositions can be set to 2, 4 , 8, 16, 32, 64, 128, 256 or ∞.

  • Page 318: Record Length And Sampling Rate

    Chapter 11 Sampling System Figure 11-8 AM Signal in Envelope Sampling Mode (32) 11.4 Record Length and Sampling Rate The record length is the data volume for each captured waveform. For example, if the record length is 700K, it means that 700K sample points are captured by one trigger.
  • Page 319 In the main menu, tap "Sample" to enter the record length setting menu, which can be set by tapping the corresponding record length. Figure 11-9 Record Length In normal refresh mode, if it is a single channel, the record length can be set to 22k, 220k, 2.2M, 22M, 110M, Auto; if it is dual channel, the record length can be set to 11k, 110k, 1.1M, 11M, 55M, Auto;...
  • Page 320 Or, if the memory depth is 140K (fixed value), the sampling rate is 1GSa/s, and the horizontal time base is 1us, the acquisition time is 140us, which is 10 times of the current display time on the entire screen. For a single channel in a channel pair, the maximum sampling rate of the ATO series oscilloscope is 1GSa/s.
  • Page 321 If any two channels are opened, the sampling rate of the two channels will halved. For example, when CH1 and CH3 are opened, the sampling rates of CH1 and CH3 are both 500 MSa/s. If any three channels or all four channels are opened, the sampling rate per channel will become 1/4 of the maximum sampling rate.

  • Page 322: Chapter 12 Serial Bus Trigger And Decode (Optional)

    Chapter 12 Serial Bus Trigger and Decode (Optional) Chapter 12 Serial Bus Trigger and Decode (Optional) This chapter contains the detailed information of serial bus decoding. You are recommended to read this chapter carefully to understand the setting and operation of Smart bus trigger and decode. This chapter mainly include the below contents: ...
  • Page 323 Swipe up or down at the channel selection area to enter the second channel selection area, tap enable decoding, open bus configuration menu, select bus type, there are seven bus types: UART (RS232/RS422/RS485), LIN, CAN(FD), SPI, I2C, ARINC429, 1553B, where channels S1 and S2 can be used for decoding simultaneously.
  • Page 324 Chapter 12 Serial Bus Trigger and Decode (Optional) Figure 12-1 Bus Type Selection Menu Open the pull-up menu and tap key to open or close the text mode, as shown in Figure 12-2.
  • Page 325 Figure 12-2 Bus Decode Text Mode Description: Two decode channels S1&S2 in the text interface must be configured identically to be opened, and each channel is displayed in chronological order with different colors;...
  • Page 326 Chapter 12 Serial Bus Trigger and Decode (Optional) S1/S2/S1&S2 are the channel configuration bus information, and X knob is rotated or the label is switched to change the bus channel; Clicking save during the text acquisition process can save all currently acquired data. If the date volume is too large, “wait”...

  • Page 327: Uart (Rs232/Rs422/Rs485) Bus Trigger And Decode

    12.1 UART (RS232/RS422/RS485) Bus Trigger and Decode For correctly decoding UART(RS232/RS422/RS485) bus data and making trigger stable, the bus configuration, trigger mode setting and trigger level need to be adjusted.  Bus configuration Left swipe to open the bus configuration menu, as shown in Figure 12-4. The RX channel must be chosen and the following parameters must be set according to measured signals: Idle Level —...
  • Page 328 Chapter 12 Serial Bus Trigger and Decode (Optional) Baud Rate — Choose the baud rate that matches signal in measured equipment. The baud rate can be set within the range from 1.2Kb/S to 8.000Mb/S. Bus Display — Choose hexadecimal, binary or ASCII code display.
  • Page 329 Figure 12-4 UART Bus Configuration Menu...
  • Page 330 Chapter 12 Serial Bus Trigger and Decode (Optional) When word is displayed in ASCII, 7-bit ASCII format is used. Valid ASCII characters are between 0x00 and 0x7F. To display in ASCII, at least 7 bits in the “Bus Configuration” must be chosen. If ASCII is chosen and the data exceeds 0x7F, the data will be displayed in hexadecimal.
  • Page 331 Figure 12-5 Baud Rate Default Setting Note: When there is parity bit, the data word length indicates the total length of data bit plus parity bit. When there is no parity bit, the data word length is considered to be the length of data bit. For example, if the data word length is 8bit, when there is no parity bit, it means that the total length of data bits is 8bit;...
  • Page 332 Chapter 12 Serial Bus Trigger and Decode (Optional)  Trigger mode Open the trigger configuration menu and select the appropriate trigger type; when choosing UART bus trigger, the trigger type, trigger relationship and trigger data need to be set, as shown in Figure 12-6: Figure 12-6 Trigger Setting Menu After selecting the trigger data, use the pop-up virtual keyboard to modify it, enter the value, and click “Enter”...
  • Page 333 Stop bit — trigger at the stop bit of the measured signal, no matter the measured signal uses 1, 1.5, or 2 stop bits or not, the trigger will occur at the first stop bit. [data] — Trigger at the specified data bit, when measured signal data bits are effective as 5 to 8bits, select [data], and select the trigger relationship as “=”, “>”...
  • Page 334 Chapter 12 Serial Bus Trigger and Decode (Optional)  UART serial decode The measured signal word length is 8bit; parity bit, none; baud rate, 19.2kb/s, hexadecimal; trigger mode as data bit:55; follow the steps as below: (1) Tap S1 to open the decode channel, and click S1 again to open the bus configuration menu; (2) Select the bus type as “UART”, click “Ch1”, “Idle High”, “Parity None”, “8bit”, “19.20kb/s”, display “hexadecimal”, then close menu;...
  • Page 335 Figure 12-7 UART Decode Level Adjustment...
  • Page 336 Chapter 12 Serial Bus Trigger and Decode (Optional) Figure 12-8 UART Graphic Interface UART graphic interface description: (1) Trigger position (2) Trigger type...
  • Page 337 (3) Threshold level (4) Configuration information (5) Decode the data packet, detailed as follows (6) Decode data and the corresponding waveform area UART decode data packet description: (1) Decode data packet displays real-time data about the bus activities; (2) Decode data displays as hexadecimal system in white; (3) When the word length is 5-8 bits, the decode data displays as two bits of hexadecimal;...
  • Page 338 Chapter 12 Serial Bus Trigger and Decode (Optional) Figure 12-9 UART Text Interface UART text interface description, see Figure12-9: (1) S1/S2/S1&S2 is channel configuration bus information. (2) Area for decode data.

  • Page 339: Lin Bus Trigger And Decode

    (3) ASCII code corresponding to the text data (when the data format is 9 bits and there is no parity bit, ASCII code corresponds to lower 8 bits of data on the left side). (4) Counter: Calculates the total number of frames and the percentage of ERR (parity error and stop bit error) frames.
  • Page 340 Chapter 12 Serial Bus Trigger and Decode (Optional) Left swipe to open the bus configuration menu, and the following need to be set according to measured signal: Source — Select the signal source of decode. Idle Level - high and low. Select whether to display high active or low active after the signal start bit of measured equipment.
  • Page 341 Figure 12-10 LIN Bus Configuration Menu  Trigger mode Open the trigger configuration menu and select the appropriate trigger type. When the LIN bus trigger is selected, the trigger mode includes: synchronous rising edge, frame ID, frame ID and data. See Figure 12-11:...
  • Page 342 Chapter 12 Serial Bus Trigger and Decode (Optional) Figure 12-11 LIN Trigger Mode Configuration Menu Synchronous rising edge – When the “Sync Interval” of LIN bus ends, the rising edge triggers. Frame ID — Triggered when a frame with an ID equal to the set value is detected. Select “Frame ID”, click data on the touch screen, and use the pop-up virtual keyboard to modify it.
  • Page 343 (1) Tap S1 to open the decode channel, and click again to open the bus configuration menu; (2) Select the bus type as “LIN”, click “Ch1”, “Idle High”, “19.20kb/s”, and then close the menu; (3) Open the trigger mode configuration menu and click “Synchronous Rising Edge”; (4) Click configuration information to open the decode channel threshold level adjustment box, and drag the adjustment box upward and downward to adjust the threshold level;...
  • Page 344 Chapter 12 Serial Bus Trigger and Decode (Optional) Figure 12-12 LIN Graphic Interface LIN decode data packet description: (1) Decode data packet displays real-time data about the bus activities. (2) Decode data displays as hexadecimal system.
  • Page 345 (3) “Frame ID” displays in yellow, “Data” displays in white, and “Parity sum” displays in green. If the parity sum has error, it is displayed in red “E”. (4) When “?” appears, the time base needs to be adjusted to view decode results. Figure 12-13 LIN Text Interface...
  • Page 346 Chapter 12 Serial Bus Trigger and Decode (Optional) LIN text interface description, as shown in Figure 12-13: “Ch”: bus channel. “Time”: Time intervals between the last frames to current frames. “ID”: Frame ID value. “Data”: Frame data. “Parity sum”: Frame parity sum, the sum of parity error displays in red. “Trigger”: “Yes”...

  • Page 347: Can Bus Trigger And Decode

    12.3 CAN Bus Trigger and Decode For correctly decoding CAN and CAN FD(optional) bus data and making trigger stable, the bus configuration, trigger mode set and trigger level need to be adjusted.  Bus configuration Left swipe to open the bus configuration menu, the signal source needs to be set, and the signal type and baud rate are set according to measured signal;...
  • Page 348 Chapter 12 Serial Bus Trigger and Decode (Optional) Figure 12-14 CAN Bus Configuration Menu  Trigger mode Open the trigger configuration menu and select the appropriate trigger type; when S1 CAN bus trigger is selected, as shown in Figure 12-15:...
  • Page 349 Figure 12-15 CAN Trigger Mode Configuration Menu Trigger mode selection menu description: Frame start — trigger at the start of the frame; Remote frame ID — setting the ID matches the remote frame trigger. After selecting the “Remote Frame ID”, and then set the ID value at the bottom of the trigger data area Operation description: Press the numbers on the touch screen and use the virtual keyboard to set;...
  • Page 350 Chapter 12 Serial Bus Trigger and Decode (Optional) Remote frame/data frame ID — trigger on remote frame or data frame that matches set ID. Remote frame/data frame ID configuration is the same as the remote data frame ID configuration; Data frame ID and data ID — trigger on data frame that matches set ID and data. The configuration method is the same as the remote frame ID configuration;...
  • Page 351 (2) Select the bus type as “CAN”, and then click “Ch1”, “Idle High” and “1Mb/s”. After setting, click the blank area to close the menu; (3) Open the trigger mode configuration menu and click “Frame Start”; (4) Adjust the threshold level according to the signal amplitude; the CAN trigger graphic interface is shown in Figure 12-16: Figure 12-16 CAN Graphic Interface...
  • Page 352 Chapter 12 Serial Bus Trigger and Decode (Optional) CAN decode data packet description: (1) Decode data packet displays real-time data about the bus activities. (2) Decode data displays as hexadecimal system. (3) “Frame ID” displays in yellow, “Data” displays in white, and “DLC” and “CRC” codes display in green. If there is frame error, it is displayed in red “E”.
  • Page 353 Figure 12-17 CAN Text Interface CAN text interface description, as shown in Figure 12-17: “Ch”: bus channel. “Time”: Time intervals between the last frames to current frames.

  • Page 354: Spi Bus Trigger And Decode

    Chapter 12 Serial Bus Trigger and Decode (Optional) “ID”: CAN frame ID value displayed in hexadecimal, maximum 29 bits. “Type”: Frame type, “SFF” standard data frame, “SRF” standard remote frame, “EFF” extended data frame, “ERF” extended remote frame. “DLC”: Number of data bytes sent by this frame. This value can be ignored for remote frames. “Data”: Frame data.
  • Page 355  Bus configuration Left swipe to open the bus configuration menu, the following need to be set: Clock source, data source, chip select signal, and data word length, as shown in Figure 12-18: Figure 12-18 SPI Bus Configuration Menu...
  • Page 356 Chapter 12 Serial Bus Trigger and Decode (Optional)  Trigger mode Open the trigger configuration menu and select the appropriate trigger type; when selecting the SPI bus trigger, as shown in Figure 12-19: Figure 12-19 SPI Trigger Mode Configuration Menu The operation method is the same as CAN frame ID to be matched in the configuration, and will not be repeated here.
  • Page 357  SPI serial bus The measured signal channel Ch1 is connected to CLK, Ch2 channel is connected to DATA, the bus idle state is high, the clock rising edge is sampled; the data word length is 4 bits; the CS chip select is off; the trigger mode matches the “Data”...
  • Page 358 Chapter 12 Serial Bus Trigger and Decode (Optional) Figure 12-20 SPI Graphic Interface SPI decode data packet description: (1) Decode data packet displays real-time data about the bus activities. (2) Decode data displays as hexadecimal system.
  • Page 359 (3) Data displays in white. (4) When “?” appears, the time base needs to be adjusted to view decode results. Figure 12-21 SPI Text Interface...
  • Page 360 Chapter 12 Serial Bus Trigger and Decode (Optional) SPI text interface description, as shown in Figure 12-21: “Ch”: bus channel. “Time”: Time intervals between the last frames to current frames. “Data”: According to the data word length setting, the decode data is displayed. For example, if the data word length is 8bit, only one byte displays in the data column;...

  • Page 361: I2C Bus Trigger And Decode

    12.5 I2C Bus Trigger and Decode For correctly decoding I2C bus data and making trigger stable, the bus configuration, trigger mode set and trigger level need to be adjusted.  Bus configuration Left swipe to open the bus configuration menu, Bus configuration includes the serial clock (SCL) and the serial data (SDA) corresponding to the channel settings.
  • Page 362 Chapter 12 Serial Bus Trigger and Decode (Optional) Figure 12-22 I2C Bus Configuration Menu Notes: When SCL or SDA channel is set, the system will automatically set other channels.
  • Page 363  Trigger mode Open the trigger configuration menu and select the appropriate trigger type. When the I2C bus trigger is selected, click the trigger type and relationship on the screen, as shown in Figure 12-23: Figure 12-23 I2C Trigger Mode Configuration Menu Trigger mode menu description: Start condition —...
  • Page 364 Chapter 12 Serial Bus Trigger and Decode (Optional) Restart — triggered when a new start condition occurs before the stop condition. Address no ack — trigger when the ack bit in the set address field is invalid (ignoring W/R bit), select “Address”...
  • Page 365 the set data match the set relationship condition, trigger on the clock edge of Ack bit after the data byte. After selecting “EEPROM Data Read”, click the relationship by “=” “ >” “<” “ ≠”, and the setting method is the same as the address field. 10-bit write frame - Trigger on 10-bit write frame on the 26th clock edge if all bits in the pattern match.
  • Page 366 Chapter 12 Serial Bus Trigger and Decode (Optional) Figure 12-24 I2C Graphic Interface I2C decode data packet description: (1) Decode data packet displays real-time data about the bus activities. (2) Decode data displays as hexadecimal system.
  • Page 367 (3) Address content display: Read address displays in green, write address displays in yellow, and data displays in white. “W” denotes write operation, “R” denotes read operation, “D” denotes decode data, and “~A” denotes no Ack bit. (4) When “?” appears, the time base needs to be adjusted to view decode results. Figure 12-25 I2C Text Interface...
  • Page 368 Chapter 12 Serial Bus Trigger and Decode (Optional) I2C text interface description, as shown in Figure 12-25: “Ch”: bus channel. “Time”: intervals between the last read/write operations to current read/write operations “Address”: in address bar, “R” means the read operation, and “W” means write operation “Data”: data sent by one read and write operation is in the data bar.

  • Page 369: Arinc429 Bus Trigger And Decode

    12.6 ARINC429 Bus Trigger and Decode For correctly decoding ARINC429 bus data and making trigger stable, the bus configuration, trigger mode set and trigger level need to be adjusted.  Bus configuration Left swipe to open the bus configuration menu, the following needs to be set: Data Source —...
  • Page 370 Chapter 12 Serial Bus Trigger and Decode (Optional) Figure 12-26 ARINC429 Bus Configuration Menu  Trigger mode Open the trigger configuration menu and select the appropriate trigger type; when the ARINC429 bus trigger is selected, click the trigger type and relationship on the screen, as shown in Figure 12-27:...
  • Page 371 Figure 12-27 ARINC429 Trigger Mode Configuration Menu If LABEL, SDI (source identifier), DATA or SSM (symbol/status mark) trigger are used, after selecting trigger mode, use the pop-up virtual keyboard to modify it, enter the value, and click “Enter” on the virtual soft keyboard to complete the setting.
  • Page 372 Chapter 12 Serial Bus Trigger and Decode (Optional) LABEL: Label, triggered when the specified tag value occurs. SDI: Source identifier, triggered on the specified source terminal. DATA: Trigger on the specified data. SSM: Symbol/status mark, triggered on the specified symbol status matrix. LABEL+SDI: Trigger on the specified label and the specified source terminal.
  • Page 373 All 1 bit -: Triggered when any bit with the value of 1 appears.  ARINC 429 serial decode The measured signal source is CH1, the decode format is LABEL+DATA, the display is in hexadecimal, the baud rate is 12.5kb/s, and the trigger mode is LABEL, operate as follows: (1) Tap S1 to open the decode channel, and click S1 again to open the bus configuration menu;...
  • Page 374 Chapter 12 Serial Bus Trigger and Decode (Optional) Figure 12-28 ARINC429 Graphic Interface ARINC429 decode data packet description: (1) Data packet, a total of 32bits, the data format is 8~1 (label bit, high bit first) +9~10(SD) +11~29 (data bit, low bit first) +30~31 (symbol status bit) +32 (parity bit)
  • Page 375 (2) Label (8bits) - Displayed in octal: yellow (3) SDI (2bits) - Displayed in binary: blue (4) Data (19bits) - Displayed in selected numeration system: white, or red if there is parity error (5) SSM (2bits) - Displayed in binary: green Figure 12-29 ARINC429 Text Interface...
  • Page 376 Chapter 12 Serial Bus Trigger and Decode (Optional) ARINC429 text interface description, as shown in Figure 12-29: “Ch”: bus channel. “Time”: intervals between the last read/write operations to current read/write operations “LABLE”: label, information identifier, displayed in octal. “SDI”: source/target identifier, displayed in binary (displays XX if not identified separately). “Data”: content of the transmitted information, displayed in the selected numeration system.

  • Page 377: 1553B Bus Trigger And Decode

    12.7 1553B Bus Trigger and Decode For correctly decoding 1553B bus data and making trigger stable, the bus configuration, trigger mode set and trigger level need to be adjusted.  Bus configuration Left swipe to open the bus configuration menu, the data source and display hexadecimal need to be set, as shown in Figure 12-30:...
  • Page 378 Chapter 12 Serial Bus Trigger and Decode (Optional) Figure 12-30 1553B Bus Configuration Menu  Trigger mode Open the trigger configuration menu and select the appropriate trigger type. When the trigger type is 1553B bus trigger, click the trigger type on the screen, as shown in Figure 12-31:...
  • Page 379 Figure 12-31 1553B Trigger Mode Configuration Menu Trigger configuration menu description: Command/status word sync header: Triggered at the beginning of the command/status word (at the end of valid C/S sync pulse). Data word sync header: Triggered at the beginning of data word (at the end of valid data sync pulse). Command/status word: Triggered when the specified command/status word is detected.
  • Page 380 Chapter 12 Serial Bus Trigger and Decode (Optional) If you select this option, RTA softkey will be available, allowing you to select the hexadecimal remote terminal address value to be triggered on it. If you select 0xXX (irrelevant), oscilloscope will trigger on any RTA.
  • Page 381 (3) Open the trigger setting menu, select the trigger type as bus trigger, 1553B, and trigger mode as “command/status word sync header”. Channel threshold level is adjusted according to signal amplitude. 1553B trigger graphic interface is shown in Figure 12-32: Figure 12-32 1553B Graphic Interface...
  • Page 382 Chapter 12 Serial Bus Trigger and Decode (Optional) 1553B decode data packet description: (1) Remote terminal address (5-bit data): blue (2) The value of remaining 11 bits of the command/status word: yellow (3) Decoded data: white (4) If the command/status or data word has a parity error, its decoded text is displayed in red instead of green or white.
  • Page 383 Figure 12-33 1553B Text Interface 1553B text interface description, as shown in Figure 12-33: “Ch”: bus channel. “Time”: intervals between the last read/write operations to current read/write operations.
  • Page 384 Chapter 12 Serial Bus Trigger and Decode (Optional) “Type”: frame type (data frame DATA, command/status frame C/S, others N/A). “RAdr”: remote terminal address, displayed in the selected numeration system (N/A for no content display). “Data”: content of the transmitted information, displayed in the selected numeration system. “Trigger”: “Yes”...

  • Page 385: Chapter 13 Homepage Functions

    This chapter contains the functions of the oscilloscope homepage and describes the functions of all icons on the homepage and settings. You are recommended to read this chapter carefully to understand the homepage functions of the ATO series oscilloscope.  Oscilloscope ...
  • Page 386 Chapter 13 Homepage Functions The following figure shows the contents of the oscilloscope home page. Slide left or right to display the remaining applications. See Figure 13-1. Figure 13-1 Homepage Interface...

  • Page 387: Oscilloscope (See Chapters 2~12)

    13.1 Oscilloscope (see Chapters 2~12) 13.2 App Store Tap the app store icon on the homepage to go to the app store interface, as shown in Figure 13-2. App store content includes Network, Local, U-disk, and About. Figure 13-2 App Store...
  • Page 388 Chapter 13 Homepage Functions Network Tap “Network” to open the application list. Tap app icon to view details such as version number of the current app and app description, and tap the green open option below to open or install the current app. Tap the green option on the right of the app list to open and install the app.
  • Page 389 After USB disk has been plugged, if there are no apk files in the USB device for installation, the interface displays “There is no available apk file in the U disk directory”. About In “About” interface, the equipment model, bandwidth, serial number, version information, shipment date and information about installed options can be viewed.
  • Page 390 Chapter 13 Homepage Functions Figure 13-3 About Interface The options that can be installed include: UART, LIN, SPI, CAN, CAN FD, I2C, 1553B, 429 and other serial decode (refer to Chapter 12 Serial Bus Trigger and Decode).

  • Page 391: Settings

    13.3 Settings Tap settings on Homepage to enter the System Settings interface. Settings on the settings interface include Network & internet, display, sound, storage, system and About Oscilloscope, as shown in Figure 13-4. Figure 13-4 System Setting Interface...
  • Page 392 Chapter 13 Homepage Functions WLAN connection Tap WIFI icon to enter the WLAN settings interface, as shown in Figure 13-5. Figure 13-5 WLAN Connection Setting...
  • Page 393 Tap on/off bar to turn the WLAN function on. Oscilloscope can automatically scan the surrounding wireless networks and display their names by list. Tap the wireless network to be connected and the password input box will pop up. After entering password using the virtual keyboard, tap Enter to connect oscilloscope to the wireless network.
  • Page 394 Chapter 13 Homepage Functions Figure 13-6 Portable WLAN Hotspot Setting Display Tap display icons to set the oscilloscope Brightness level, Dark theme, Wallpaper, Font size and Display size. Brightness level: The progress bar can be dragged to set the brightness of the screen display.
  • Page 395 Dark theme: Set Dark theme uses a black background to help keep battery alive longer on some screens. Wallpaper: Set the screen wallpaper. Font size: Change the system display font size. Display size: Make the items on your screen smaller or larger. Some apps on your screen may change position. Sound Tap the “sound”...
  • Page 396 Chapter 13 Homepage Functions Storage Tap storage to enter the storage space view interface, then view the total storage capacity, size of available space, as well as memory size of applications (application data and media content), pictures, videos, audio (music, ringtones, podcasts, etc.), download content, cache data, and others.
  • Page 397 On-screen keyboard includes Android keyboard and Gboard, tap +manage on-screen keyboards to turn off one of them. Advanced setting include Spell checker, Autofill service, Personal dictionary, Pointer speed. Date and time Tap System →Date & time icons to set your system date and time Use network-provided time: When turned on, the time provided by the network will be used as the system time.

  • Page 398: File Manager

    Chapter 13 Homepage Functions About Oscilloscope In the “About” interface, view legal information, Android version, IP address, build number and other information. Accept online updates: turn off/on System update, app update, boot interface update, userguide update ... 13.4 File Manager File manager app can enable quick access to and management of various files stored on the equipment.

  • Page 399: Calculator

    Local: views the content stored in the oscilloscope by the traditional folder list mode. When USB device is plugged, the content in the USB device can also be accessed through external storage. To operate files, simply press and hold a single file to select it. The selected file will show blue √. Then, click the remaining files to select them.

  • Page 400: Gallery

    Chapter 13 Homepage Functions Figure 13-7 Browser Interface 13.7 Gallery Tap gallery application on the homepage interface to enter the picture viewing interface, as shown in Figure 13-8.
  • Page 401 Figure 13-8 Picture Viewing Interface Gallery provides locally stored photos/videos with the functions of picture/video viewing and photo editing. In the picture view interface, pictures and videos can be classified into different categories according to the method in the upper left corner, and tap them to view pictures or videos.
  • Page 402 Chapter 13 Homepage Functions When viewing pictures, click to display them in full screen. When viewing videos, swipe left and right to select the video you want to play. Click the triangle play button, and the video will play automatically. Tap the screen to pause play.

  • Page 403: Calendar

    When viewing pictures and videos, tap the option at the top right of the screen and click to select items. The pictures and videos can be selected. Click the recycle bin icon in the upper right corner of the screen to delete pictures or videos.

  • Page 404: Clock

    Chapter 13 Homepage Functions Figure 13-10 Electronic Calculation Tool Function 13.10 Clock Tap time icon on the homepage or tap clock app icon to enter the clock settings screen, as shown in Figure 13-11.
  • Page 405 Alarm clock Add an alarm: Click “+” button below to add an alarm clock and create settings. Alarm time: Drag pink dot in the dial to set the hour, and drag again to set the minute. Repeat: Monday to Sunday available and click calendar icon on the right to enter the calendar for custom selection. Alarm ringtone: Select alarm ringtone, support local ringtone, system ringtone, none.
  • Page 406 Chapter 13 Homepage Functions Delete timer: Click “DELETE” to delete the timer. Pause: Click the double rectangle button to pause timer. Stopwatch Start: Click “Triangle” to start timing. Pause: Click “Double Rectangle” below to pause the stopwatch. Mark: Click the LAP to mark it.

  • Page 407: Power Off

    Figure 13-11 Time Setting 13.11 Power Off Long press power button to enter the power off interface, as shown in Figure 13-12. Power off contains 4 options: Shutdown, Reboot, Standby, Lock Screen.
  • Page 408 Chapter 13 Homepage Functions Figure 13-12 Power Off Interface Shutdown: Click the button to turn off the oscilloscope.
  • Page 409 Reboot: Click the button to restart the oscilloscope. Standby: Click the button to standby the oscilloscope, press power button to wake. Lock Screen: Click the button to lock the oscilloscope screen, repeat the step to unlock.

  • Page 410: Chapter 14 Remote Control

    Chapter 14 Remote Control Chapter 14 Remote Control This chapter contains the application of host computer, mobile remote control, in order to understand remote control functions of the ATO series oscilloscope.  Host computer  Mobile remote control...

  • Page 411: Host Computer

    14.1 Host Computer To control the instrument using the host computer software, you need to install the NI driver first, then the RemoteDisplay software is downloaded and installed. This software is only suitable for Micsig ATO series oscilloscopes. 14.1.1 Installation of Host Computer Software Note: The host computer software only supports Win7 or higher edition operating system.

  • Page 412: Connection Of Host Computer

    Chapter 14 Remote Control Figure 14-1 RemoteDisplay Software 14.1.2 Connection of Host Computer USB connection: Connect USB Device to the computer and oscilloscope through USB data cable. After the computer recognizes the USB device, open the host computer, set the connection mode to USB , and display the device information in the device information display box in the lower right corner.
  • Page 413 the lower right corner. This indicates that the oscilloscope has been found. Click to connect to the selected oscilloscope. Enter IP connection: In case of network connection (WIFI or LAN), directly type oscilloscope IP to be connected in the oscilloscope device information display box in the lower right corner, and then click the oscilloscope connection status button, the host computer will be connected to the oscilloscope corresponding to the entered IP address.

  • Page 414: Main Interface Introduction

    Chapter 14 Remote Control 14.1.3 Main Interface Introduction Figure 14-2 Host Computer Interface...
  • Page 415 Click to exit the host computer software Host computer on/off button The button has two states: Oscilloscope connection status button Green: Connect to selected oscilloscope when clicked Red: Disconnect from oscilloscope when clicked Click to take photo quickly. Pictures are stored in the local Quick camera button directory C:\Users\Public\Pictures Click to open or close video record function.

  • Page 416: Operation Interface Introduction

    Chapter 14 Remote Control Note: WIFI connection must ensure that oscilloscope and computer are in the same network 7. Host computer display area Synchronous display with oscilloscope 8. Oscilloscope information display Display oscilloscope model, connection mode, SN, IP and other information, select the oscilloscope to be connected 9.

  • Page 417: Storage And View Of Pictures And Videos

    14.1.5 Storage and View of Pictures and Videos Storage setting of pictures and videos: Open the host computer storage setting , set the storage location of pictures and videos, as shown in the figure below: Figure 14-3 Host Computer Storage Setting Pictures are stored in the local directory C:\Users\Public\Pictures by default.
  • Page 418 Chapter 14 Remote Control Figure 14-4 Change Storage Directory View pictures and videos: Open picture (video) storage directory to view pictures (videos) stored on the host computer.

  • Page 419: Mobile Remote Control

    Figure 14-5 View Pictures 14.2 Mobile Remote Control Micsig ATO series oscilloscopes support remote control on mobile phone (android & iOS). You need to download Android app from the official website of Micsig (address: http://www.micsig.com) and install it. For iOS, go to...
  • Page 420 Chapter 14 Remote Control After App is successfully connected, mobile device can be used to control the oscilloscope and display the oscilloscope interface in a real time manner. Figure 14-6 APP interface...
  • Page 421 Figure 14-7 Successful Connection of APP Android APP can be connected by two methods: Use oscilloscope portable hotspot: Mobile phone can be connected to the hotspot of oscilloscope. Enter the oscilloscope IP 192.168.45.1 in the IP box at the lower right corner of the screen to connect successfully for control;...
  • Page 422 Chapter 14 Remote Control The first connection method is recommended.

  • Page 423: Chapter 15 Update And Upgrade Functions

    Chapter 15 Update and Upgrade Functions This chapter describes the methods of software update and increasing the optional function. You are recommended to read this chapter carefully understand the upgrade functions of the ATO series oscilloscope.  Software update  Add optional functions...

  • Page 424: Software Update

    Chapter 15 Update and Upgrade Functions 15.1 Software Update Micsig often releases software updates for its products. To update your oscilloscope software, you can connect the oscilloscope to WIFI for networking, and open the SystemUpgrade application to check and install update.

  • Page 425: Add Optional Functions

    Note: Please pay attention to keep the oscilloscope power more than 50% when installing updates or connect the oscilloscope to the adapter, so as to prevent the oscilloscope from becoming abnormal due to insufficient power for update. To view the currently installed software and firmware, tap the “App Store” software in the “Home” page to display the oscilloscope software and firmware information on the “About”...
  • Page 426 Chapter 15 Update and Upgrade Functions Figure 15-2 Decode Functions Not Installed If you need the optional function service, please contact Micsig for license and enter the install option function at the license bar.
  • Page 427 Figure 15-3 Decode Functions Installed...

  • Page 428: Chapter 16 Reference

    This chapter contains the measurement category suitable for the oscilloscope and the environmental level of pollution degree supported. You are recommended to read this chapter carefully to understand the conditions of use of the ATO series oscilloscope.  Measurement Category...

  • Page 429: Measurement Category

    16.1 Measurement Category Oscilloscope measurement category Smart oscilloscopes are primarily used for measurements in Measurement Category I. Measurement category definitions Measurement category I is for measurements performed on circuits not directly connected to 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;...

  • Page 430: Pollution Degree

    Examples are electricity meters and measurements on primary overcurrent protection devices and ripple control units. Transient withstand capability Maximum input voltage of the analog input Category I 300Vrms, 400Vpk. 16.2 Pollution Degree Pollution Degree ATO series oscilloscopes can operate in environments with pollution degree 2 (or pollution degree 1).
  • Page 431 Pollution Degree Pollution degree 1: No pollution or only dry, non-conductive pollution occurs. The Categories pollution has no influence. For example: a clean room or air-conditioned office environment. Pollution degree 2: Normally only dry, non-conductive pollution occurs. Occasionally temporary conductivity caused by condensation may occur. For example: general indoor environment.

  • Page 432: Chapter 17 Troubleshooting

    Check the Power-off lock on the side of oscilloscope;  Contact Micsig if the problem persists, and we will provide service to you. If acquired waveforms do not display on the screen when the signal source is connected, please follow the steps below: ...
  • Page 433  Check whether the trigger type is correctly selected;  Check whether trigger conditions are set correctly  Check whether signal source is working properly;  Check whether the channel is turned on;  Check whether the vertical scale factor is set correctly; ...
  • Page 434 Chapter 17 Troubleshooting  Check the trigger source on the trigger type menu to ensure that it is consistent with the actually used signal channel;  Check the trigger type: edge trigger is adopted for general signal, and video trigger mode for video signal. Only the correct trigger mode is used, the waveform can be displayed stably;...
  • Page 435 If the display becomes slower after setting average times of sampling:  If the average times are above 32, it is normal for the general speed to become slow.  You can reduce the average times. Staircase waveform is displayed: ...
  • Page 436 Chapter 17 Troubleshooting 10. During measurement, the measured value is displayed as -----:  This phenomenon is normal. When the channel waveform displays beyond the waveform display area, the measured value is displayed as -----. If the channel vertical sensitivity or vertical position is adjusted, the measured value can be displayed correctly;...
  • Page 437 13. Oscilloscope backlight has low brightness:  Check whether the backlight settings are correct. 14. A waveform being moved changes abruptly:  Check whether the picture is displayed in full screen. 15. Turn off the channel at Auto state:  This phenomenon is normal. At Auto state, the channel with an amplitude less than 10mV will be turned off. 16.

  • Page 438: Chapter 18 Services And Support

    Micsig commit as follows: Repair Commitments : Micsig commits to use the original factory parts for products returned by the user for repair (under warranty or not) and the commissioning and testing standards are identical with new products. Micsig the obligation to inform the customer, but without any other obligations for non-product defects or products with decreased performance not for objective reasons.
  • Page 439 Service Time Commitments : Micsig will give a reply of the time and cost for repair within 2 working days after receiving the product returned by the user for repair. After the reply is confirmed, the repair period for a general fault is 5 working days and shall not exceed 10 working days for any special fault.

  • Page 440: Annex

    Annex Annex Annex A:Maintenance and Care of Oscilloscope General maintenance Do not put or leave the instrument in a place where the LCD display will be exposed to direct sunlight for long period. Caution: To avoid damage to the oscilloscope or probes, do not expose them to sprays, liquids, or solvents. Clean oscilloscope Examine the oscilloscope and probes as often as operating conditions require.
  • Page 441  Use a soft cloth dampened with water to clean the oscilloscope while doing this please keep the power off. Wipe with a mild detergent and water. Do not use any corrosive chemical cleaning agent, in order to avoid damaging the oscilloscope or probe.
  • Page 442 Annex Upon delivery, the lithium battery may not be charged. It takes 6 hours to be fully charged (the oscilloscope is recommended to turn off to save the charging time). When running on battery power, the battery level indicator in the lower right corner of the screen will indicate the battery usage.

  • Page 443: Annex B: Accessories

    Annex B: Accessories Standard accessories 2 pcs for 10X standard probes (incl. grounding nut, grounding crocodile clip, standard rubber plug) 4 x BNC banana lines (4CH); 4 x alligator clips (4CH); 4 X Flexible needle (4CH); Power adapter (12V DC, 4A) Power cord Smart calibration certificate Smart packing list...
  • Page 444 Annex Optional accessories Oscilloscope suitcase/handbag Battery High voltage probe Differential probe Current probe...
  • Page 445 The company will assume no responsibility for accident or hazard caused by the improper operation of the user. The copyright of this manual shall belong to Micsig. Any organization or individual may not duplicate, copy or excerpt the contents without Micsig’s authorization. Micsig reserves the right to claim against such...

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