Micsig ATO3002 300MHz 2-Ch Standard Automotive Tablet Oscilloscope

The Micsig ATO3002 Automotive Tablet Oscilloscope combines a two-channel digital oscilloscope, vehicle-specific diagnostic software, serial bus analysis and portable battery operation in one tablet-style platform.

It is developed for automotive technicians, service centres, vehicle manufacturers, training institutions and diagnostic engineers who need to capture and compare electrical signals during workshop or road testing.

The ATO3002 provides:

• Two analogue channels
• 300 MHz analogue bandwidth
• Up to 2 GSa/s real-time sampling
• Up to 220 Mpts acquisition memory
• Up to 300,000 waveform captures per second
• Automotive test presets
• Serial bus triggering and decoding
• 10.1-inch capacitive touchscreen
• 32 GB internal storage
• Wi-Fi and mobile-device connectivity
• Replaceable rechargeable battery

Its two-channel configuration is suitable for correlated measurements such as crankshaft versus camshaft, CAN High versus CAN Low, voltage versus current and sensor input versus ECU response.

300 MHz Analogue Bandwidth

The ATO3002 provides 300 MHz analogue bandwidth across two input channels.

This bandwidth supports detailed observation of:

• Camshaft and crankshaft sensor signals
• Primary and secondary ignition waveforms
• Injector voltage and current
• CAN and CAN FD physical-layer signals
• PWM-controlled actuators
• Fast sensor transitions
• Automotive power-electronics signals
• ECU input and output waveforms
• Switching noise and voltage spikes
• General electronic circuit signals

The model’s typical rise time is approximately 1.16 ns or less. Actual measurement performance also depends on the selected probe, grounding method, source impedance, cable length and signal connection.

Two Analogue Channels

The two-channel design allows technicians to compare two related signals within the same time-correlated acquisition.

Typical measurements include:

• Crankshaft versus camshaft
• CAN High versus CAN Low
• Sensor signal versus ECU output
• Voltage versus current
• Primary ignition versus injector control
• Reference signal versus measured signal
• Battery voltage versus cranking current
• Alternator output versus AC ripple
• Input signal versus actuator response

The two-channel model is suitable where portable operation and deep acquisition memory are more important than simultaneous four-signal capture.

Up to 2 GSa/s Real-Time Sampling

The ATO3002 provides a maximum real-time sampling rate of 2 GSa/s.

A high sample rate helps technicians observe:

• Fast ignition transitions
• Injector switching edges
• CAN bus waveform shape
• Narrow pulses
• Short signal dropouts
• Electrical noise
• Timing variation
• Intermittent voltage disturbances

The available sample rate can depend on the number of active channels and selected acquisition mode. The product page should therefore use up to 2 GSa/s rather than implying that each active channel always operates at the full rate.

Up to 220 Mpts Acquisition Memory

The ATO3002 provides up to 220 Mpts memory depth.

Deep acquisition memory allows users to record longer periods while retaining enough sample detail to zoom into selected events.

This is useful for:

• Extended cranking analysis
• Long CAN or CAN FD captures
• Road-test waveform recording
• Intermittent sensor faults
• Vehicle start-up sequences
• Ignition misfire investigation
• Long actuator-control events
• Charging-system monitoring
• Communication-network troubleshooting

The final memory allocation can depend on the active-channel and acquisition configuration. The safest headline specification is up to 220 Mpts memory depth.

Up to 300,000 Waveforms per Second

The ATO3002 supports waveform capture rates up to 300,000 wfms/s.

Fast acquisition increases the probability of detecting:

• Ignition dropouts
• Communication glitches
• Short injector abnormalities
• Runt pulses
• Timing errors
• Intermittent sensor noise
• Unexpected voltage spikes
• Unstable actuator control
• Brief power interruptions

This capability is useful when a vehicle fault appears only occasionally or under specific operating conditions.

Dedicated Automotive Diagnostic Presets

The ATO3002 includes built-in automotive test presets that help technicians configure the oscilloscope for common vehicle measurements.

Instead of manually adjusting the time base, voltage range and trigger settings for every test, users can select an appropriate automotive test category and refine the settings as required.

Charging-System Tests

Supported applications include:

• 12 V charging systems
• 24 V charging systems
• Alternator AC ripple
• Smart alternator analysis
• Battery charging behaviour
• Charging-control signal testing

These tests can help identify alternator faults, battery problems, charging-control issues and wiring abnormalities.

Starting-System Tests

Starting-system applications include:

• 12 V starting tests
• 24 V starting tests
• Cranking-voltage measurement
• Cranking-current analysis
• Starter-motor evaluation
• Battery voltage-drop testing

A compatible automotive current clamp is required for current measurements.

Sensor Tests

Automotive sensor presets support common vehicle signals such as:

• Crankshaft-position sensors
• Camshaft-position sensors
• ABS sensors
• Accelerator-pedal sensors
• Air-flow meters
• MAP sensors
• Coolant-temperature sensors
• Fuel-pressure sensors
• Knock sensors
• Oxygen or lambda sensors
• Throttle-position sensors
• Road-speed sensors

These presets help technicians compare actual sensor behaviour with expected waveform patterns.

Actuator Tests

Supported actuator applications include:

• Petrol injectors
• Diesel injectors
• Fuel pumps
• EGR solenoids
• Carbon-canister valves
• Glow plugs
• Idle-air control valves
• Pressure regulators
• Quantity-control valves
• Throttle servomotors
• Variable-speed cooling fans
• Variable-valve-timing systems

Technicians can evaluate control voltage, switching behaviour, current response and timing.

Ignition Tests

The ATO3002 supports:

• Primary ignition testing
• Secondary ignition testing
• Coil-on-plug analysis
• Dwell-time measurement
• Burn-time analysis
• Ignition timing comparison
• Misfire investigation

Suitable ignition probes or secondary ignition pickups are required for safe measurement.

Vehicle Network Tests

The automotive software supports network testing for:

• CAN High
• CAN Low
• CAN FD
• LIN
• FlexRay
• K-line

These tests help technicians examine signal voltage, edge quality, timing, interference and physical-layer faults.

Combination Measurements

The two-channel architecture is especially useful for paired automotive tests, including:

• Crankshaft and camshaft correlation
• CAN High and CAN Low comparison
• Primary ignition and injector control
• Sensor input and actuator response
• Voltage and current correlation
• Battery voltage and starter current
• Alternator output and ripple

These measurements help diagnose synchronisation, timing, wiring and ECU-control problems.

Pressure Testing

With compatible automotive pressure transducers, the ATO3002 can support waveform-based pressure analysis for:

• Intake manifold pressure
• In-cylinder pressure
• Exhaust pressure
• Crankcase pressure
• Fuel pressure
• Hydraulic or pneumatic control systems

Pressure accessories are not normally included with the standard oscilloscope and should be specified separately.

Standard Serial Bus Triggering and Decoding

The ATO3002 includes serial bus triggering and decoding for common automotive and embedded protocols.

Supported protocols include:

• RS232, RS422, RS485 and UART
• CAN
• CAN FD
• LIN
• SPI
• I²C

Automotive diagnostic presets also support FlexRay and K-line physical-layer testing.

Protocol analysis helps technicians identify:

• Corrupted data
• Communication interruptions
• Missing messages
• Timing errors
• Voltage-level abnormalities
• Electrical noise
• Bus termination problems
• Physical-layer faults

The serial decoding functions should be presented as standard unless RevineTech’s supplied configuration differs from the manufacturer package.

Hardware Digital Filtering

The ATO3002 includes hardware-based filtering to reduce unwanted interference during automotive measurements.

Filtering can improve waveform visibility during:

• Alternator ripple tests
• Injector testing
• Ignition analysis
• Low-frequency sensor measurements
• Power-supply diagnostics
• Vehicle-network troubleshooting

Users can retain full bandwidth for fast transitions or apply filtering when high-frequency content is not relevant.

Segmented Acquisition

Segmented acquisition stores important signal events as separate records rather than continuously filling memory with inactive periods.

This is useful for:

• Injector pulses
• Ignition events
• CAN frames
• Rare sensor faults
• Repetitive actuator signals
• Long workshop diagnostic sessions

It helps use memory more efficiently when significant events are separated by long idle intervals.

Automatic Measurements

The ATO3002 supports automatic measurement of common electrical and timing parameters.

Typical measurements include:

• Maximum and minimum voltage
• Peak-to-peak voltage
• Average voltage
• RMS voltage
• Frequency
• Period
• Rise time
• Fall time
• Positive pulse width
• Negative pulse width
• Duty cycle
• Overshoot
• Phase
• Delay

Automatic measurements reduce the need for manual cursor calculations during routine diagnostic work.

Waveform Mathematics and FFT

The instrument provides waveform-processing functions for general electronics and automotive troubleshooting.

Functions include:

• Addition
• Subtraction
• Multiplication
• Division
• FFT
• Filtering
• Reference waveform comparison
• Cursor measurement
• Measurement statistics

FFT analysis can support:

• Alternator ripple investigation
• Switching-frequency analysis
• Noise-source identification
• Harmonic analysis
• Detection of unwanted oscillations
• Power-electronics troubleshooting
•  

10.1-Inch Capacitive Touchscreen

The ATO3002 includes:

• 10.1-inch industrial TFT display
• 1280 × 800 resolution
• Capacitive multi-point touchscreen
• Tablet-style user interface
• Gesture-based waveform control
• Split-screen and multi-window viewing

The large display provides enough space for two waveforms, measurements, automotive menus and decoded bus information.

Android-Based SigtestUI System

The oscilloscope operates through Micsig’s SigtestUI multitasking environment.

The platform supports:

• Touch-based oscilloscope control
• Automotive diagnostic applications
• Waveform storage
• Screenshot capture
• Video recording
• File management
• Online software updates
• Remote operation
• Multitasking

The instrument includes approximately 32 GB internal storage for screenshots, waveform files, videos and test records.

Portable Battery Operation

The ATO3002 includes a rechargeable lithium-ion battery rated at approximately:

• 7.4 V
• 7500 mAh

Its tablet-style form supports workshop, roadside and in-vehicle testing without continuous mains power.

Portable applications include:

• Under-bonnet diagnostics
• Road testing
• Workshop fault-finding
• Commercial vehicle maintenance
• Mobile technical training
• Field service
• Remote electronic testing

Battery operating time depends on screen brightness, active channels, Wi-Fi use and connected probes.

Rugged Workshop Design

The ATO Series uses a protective ABS and TPU enclosure intended for mobile and workshop environments.

Design features include:

• Integrated protective housing
• Pre-installed hand strap
• Tablet-style form
• Replaceable battery
• Approximately 50 mm enclosure thickness
• Portable weight of approximately 1.9 kg with battery

These features make the oscilloscope easier to position inside or around a vehicle during diagnostic work.

Connectivity and Remote Control

The ATO3002 supports:

• Wi-Fi
• USB 3.0 Host
• USB 2.0 Host
• USB Type-C
• HDMI output
• Trigger output
• Ground connection
• PC software
• Android mobile application
• iOS mobile application
• SCPI remote control

Remote viewing can help during road tests, training, demonstrations and measurements where the oscilloscope cannot be positioned directly in front of the technician.

Switchable Input Impedance

The ATO3002 supports:

• 1 MΩ input impedance
• 50 Ω input impedance

The selectable impedance allows the instrument to work with general automotive probes and appropriately terminated higher-frequency signals.

The maximum permitted voltage depends on the selected input impedance, probe attenuation and measurement configuration.

Applications

The Micsig ATO3002 is suitable for:

• Automotive workshop diagnostics
• Passenger-car electrical testing
• Commercial-vehicle diagnostics
• 12 V and 24 V charging-system testing
• Starting and cranking analysis
• Alternator ripple testing
• Petrol and diesel injector testing
• Primary and secondary ignition analysis
• Camshaft and crankshaft correlation
• Sensor and actuator testing
• CAN and CAN FD troubleshooting
• LIN, FlexRay and K-line testing
• Automotive power-electronics testing
• ECU input and output verification
• Intermittent fault diagnosis
• Road-test waveform capture
• Automotive technical training
• General electronic circuit testing