Micsig ATO3004 300MHz 4-Ch Standard Automotive Tablet Oscilloscope

The Micsig ATO3004 Automotive Tablet Oscilloscope is designed specifically for automotive maintenance and diagnostic applications. It combines a four-channel digital oscilloscope, vehicle-specific test software, serial network analysis and portable battery operation in one tablet-style platform.

The instrument provides 300 MHz analogue bandwidth, four analogue channels and a maximum sampling rate of 2 GSa/s. Its deep acquisition memory and high waveform capture rate help automotive technicians examine both normal vehicle signals and intermittent faults that may occur only briefly.

Unlike a conventional benchtop oscilloscope, the ATO3004 includes automotive test presets for starting, charging, ignition, sensors, actuators and vehicle communication networks. These guided functions help technicians configure the scope more quickly for common diagnostic measurements.

300 MHz Analogue Bandwidth

The ATO3004 provides:

• 300 MHz analogue bandwidth
• Four analogue input channels
• Maximum real-time sample rate of 2 GSa/s
• Typical rise time of 1.16 ns or less
• Switchable 1 MΩ and 50 Ω input impedance
• Full-bandwidth and low-pass filtering
• Vertical scale from 1 mV/div to 10 V/div
• Horizontal scale from 1 ns/div to 1 ks/div

The 300 MHz bandwidth supports automotive and general electronic measurements involving relatively fast signal transitions, digital communication activity and switching circuits.

Suitable measurements include:

• Camshaft and crankshaft sensor signals
• Injector voltage and current
• Primary and secondary ignition
• CAN and CAN FD physical-layer signals
• PWM-controlled actuators
• Alternator ripple
• Automotive power electronics
• Fast control and communication signals
• Electronic control module inputs and outputs
• Timing relationships between several vehicle signals
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Four Analogue Channels

The four-channel architecture allows technicians to compare several vehicle signals at the same time.

Typical multi-channel measurements include:

• Crankshaft and camshaft correlation
• Camshaft and primary ignition
• Primary ignition and injector voltage
• Crankshaft, camshaft, injector and secondary ignition
• CAN High and CAN Low
• Sensor input and ECU response
• Voltage and current correlation
• Multiple power and control signals

Four-channel analysis is particularly useful when diagnosing synchronisation faults, intermittent timing problems and issues involving several related components.

Up to 2 GSa/s Real-Time Sampling

The ATO3004 provides a maximum real-time sampling rate of 2 GSa/s. The available sample rate depends on the number of active channels and acquisition configuration.

Salicon’s model comparison lists up to:

• 2 GSa/s in single-channel operation
• 1 GSa/s with four channels enabled

This allocation should be stated carefully because the manufacturer presents 2 GSa/s as the model’s maximum sample rate rather than as a guaranteed rate on every active channel.

A high sampling rate supports more detailed observation of:

• Ignition transitions
• Injector switching
• CAN bus edges
• Sensor dropouts
• Short pulse-width changes
• Electrical noise
• Intermittent signal disturbances
• Fast automotive control signals
•  

Up to 220 Mpts Memory Depth

The ATO3004 provides up to 220 Mpts acquisition memory.

Deep memory allows technicians to capture long periods while retaining detailed waveform information. It is useful for faults that may not occur immediately after acquisition begins.

Typical applications include:

• Extended cranking analysis
• Long CAN bus captures
• Intermittent sensor failure diagnosis
• Vehicle start-up sequences
• Long-duration actuator monitoring
• Ignition misfire investigation
• Charging-system observation
• Road-test waveform recording

Salicon’s comparison information indicates 220 Mpts at the maximum configuration and 110 Mpts with four-channel acquisition. Because allocation may vary by operating mode, the page should present up to 220 Mpts memory depth as the headline specification.

Up to 300,000 Waveforms per Second

The ATO3004 supports waveform capture rates up to 300,000 wfms/s.

A fast capture rate increases the probability of detecting short-duration or intermittent conditions, including:

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

The capture rate is significantly higher than that of the lower-bandwidth ATO1004 models within the same series.

Dedicated Automotive Diagnostic Presets

The ATO3004 includes built-in automotive diagnostic software intended to simplify scope configuration for common vehicle tests.

Charging and Starting Tests

Supported test presets include:

• 12 V charging systems
• 24 V charging systems
• Alternator AC ripple
• Smart alternator testing
• 12 V starting systems
• 24 V starting systems
• Cranking current analysis

These functions help diagnose alternator, battery, starter motor, cable and charging-control problems.

Sensor Tests

Automotive sensor presets include:

• ABS sensor
• Accelerator-pedal sensor
• Air-flow meter
• Camshaft sensor
• Coolant-temperature sensor
• Crankshaft sensor
• Distributor signal
• Fuel-pressure sensor
• Knock sensor
• Lambda or oxygen sensor
• MAP sensor
• Road-speed sensor
• Throttle-position sensor

These presets allow technicians to compare actual sensor waveforms against expected operating behaviour.

Actuator Tests

Supported actuator categories include:

• Carbon-canister solenoid valve
• Diesel glow plugs
• EGR solenoid valve
• Fuel pump
• Idle-air control valve
• Petrol injector
• Diesel injector
• Pressure regulator
• Quantity-control valve
• Throttle servomotor
• Variable-speed cooling fan
• Variable-valve-timing system

Technicians can evaluate control signals, switching behaviour, response timing and electrical loading.

Ignition Tests

The instrument supports:

• Primary ignition testing
• Secondary ignition testing
• Combined primary and secondary ignition analysis

Ignition waveform analysis can assist with diagnosing coil, spark plug, dwell, combustion and misfire-related faults.

Vehicle Network Tests

Supported vehicle network presets include:

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

These tests help technicians evaluate communication voltage levels, timing, data integrity and physical-layer conditions.

Combination Tests

Combination-test presets include:

• Crankshaft and camshaft
• Camshaft and primary ignition
• Primary ignition and injector voltage
• Crankshaft, camshaft and injector voltage
• Crankshaft, camshaft, injector voltage and secondary ignition

These combined measurements help diagnose synchronisation, timing and combustion-related problems.

Pressure Tests

The latest available ATO-series datasheet also lists pressure-testing applications for:

• Intake manifold
• Exhaust tailpipe
• In-cylinder pressure
• Crankcase pressure

Suitable pressure transducers and accessories are required for these measurements.

Standard Serial Bus Decoding

The ATO3004 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

The automotive diagnostic presets additionally support analysis of FlexRay and K-line vehicle networks.

Protocol decoding helps users identify:

• Incorrect data
• Communication interruptions
• Missing or corrupted messages
• Timing errors
• Voltage-level abnormalities
• Noise on communication lines
• Bus physical-layer faults
• Intermittent network problems

The RevineTech page should not describe serial decoding as an optional licence unless the supplied configuration differs from the manufacturer’s standard ATO3004 package.

Hardware-Based Digital Filtering

The ATO Series includes hardware-based filtering intended to reduce unwanted signal interference.

Filtering can be useful during:

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

Users can select full bandwidth when examining fast transitions or apply a low-pass filter when high-frequency noise is not relevant to the measurement.

Segmented Acquisition

The ATO3004 supports segmented storage acquisition.

Segmented acquisition stores selected signal events as separate records rather than continuously saving inactive periods. It is useful for:

• Intermittent ignition events
• Injector pulses
• Communication messages
• Rare sensor faults
• Repetitive actuator signals
• Long-duration diagnostic sessions

This can use acquisition memory more efficiently when the signal contains long gaps between important events.

10.1-Inch Full-Touch Display

The ATO3004 includes:

• 10.1-inch industrial TFT LCD
• 1280 × 800 pixel resolution
• Capacitive multi-point touchscreen
• Gesture-based waveform control
• Tablet-style user interface
• SigtestUI multitasking system

The large display provides space for four waveforms, measurements, automotive presets and decoded communication data.

Touch controls allow users to adjust waveform position, scale and acquisition settings directly on the display.

Android-Based SigtestUI System

The ATO3004 uses an Android-based operating environment with Micsig’s SigtestUI multitasking interface.

The system supports:

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

The instrument includes 32 GB internal storage for waveforms, screenshots, video and test data.

Battery-Powered Portable Operation

The oscilloscope includes a:

• 7.4 V rechargeable lithium-ion battery
• 7500 mAh battery capacity
• Replaceable battery design
• Protective ABS and TPU enclosure
• Pre-installed hand strap

The complete instrument weighs approximately 1.9 kg with the battery installed.

Battery operation is useful for:

• Workshop diagnostics
• Road testing
• Under-bonnet measurements
• Field service
• Commercial vehicle testing
• Locations without convenient mains power
• Training and mobile demonstrations

Battery operating time depends on display brightness, active channels, wireless connectivity and connected accessories.

Connectivity and Remote Control

The ATO3004 supports:

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

Waveforms can be viewed or controlled remotely using a computer or mobile device. HDMI supports connection to a larger display for training, demonstrations and collaborative diagnostics.

Switchable Input Impedance

The ATO3004 supports:

• 1 MΩ input impedance
• 50 Ω input impedance

The selectable input impedance allows the oscilloscope to work with general automotive probes and appropriately terminated higher-frequency signals. Maximum permitted voltage depends on the selected input, probe attenuation and measurement configuration.

Applications

The Micsig ATO3004 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 testing
• Camshaft and crankshaft correlation
• Automotive sensor testing
• Actuator testing
• CAN and CAN FD troubleshooting
• LIN, FlexRay and K-line analysis
• Automotive power-electronics testing
• ECU input and output verification
• Intermittent electrical fault diagnosis
• Road-test waveform capture
• Automotive technical training
• General electronic circuit testing
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Why Buy from RevineTech?

RevineTech supplies professional automotive and electronic test equipment for workshops, vehicle manufacturers, research teams, service centres and training institutions.

Technical selection assistance can include:

• ATO3004 configuration
• Automotive voltage probes
• Current clamps
• Ignition probes
• Pressure transducers
• COP and secondary-ignition probes
• CAN and LIN test accessories
• High-voltage differential probes
• Battery and charging-system accessories
• Calibration documentation
• Automotive diagnostic kits