Micsig ATO1004 100MHz 4-Ch Standard Automotive Tablet Oscilloscope

The Micsig ATO1004 Automotive Tablet Oscilloscope combines four-channel waveform acquisition, vehicle-specific diagnostic functions, serial bus analysis and portable battery operation in a tablet-style instrument.

It is suitable for automotive technicians, service centres, vehicle manufacturers, training institutions and diagnostic engineers who need to examine several related electrical signals simultaneously.

The ATO1004 provides:

• Four analogue input channels
• 100 MHz analogue bandwidth
• Up to 1 GSa/s real-time sampling
• Up to 110 Mpts acquisition memory
• Up to 78,000 waveform captures per second
• Built-in automotive test presets
• Standard serial bus decoding
• 10.1-inch capacitive touchscreen
• 32 GB internal storage
• Wi-Fi and mobile-device connectivity
• Rechargeable 7500 mAh battery

The four-channel configuration is especially useful for correlated measurements involving crankshaft, camshaft, injector, ignition, sensor, actuator and vehicle-network signals.

100 MHz Analogue Bandwidth

The ATO1004 provides 100 MHz analogue bandwidth across four analogue input channels.

It is suitable for analysing:

• Crankshaft and camshaft sensors
• Primary ignition waveforms
• Secondary ignition with a suitable probe
• Petrol and diesel injector signals
• CAN and CAN FD physical-layer waveforms
• PWM-controlled actuators
• Automotive sensor outputs
• ECU input and output signals
• Alternator ripple
• General automotive electronic circuits

Its published rise time is approximately 3.5 ns or less. Actual measurement quality also depends on probe bandwidth, source impedance, grounding and connection length.

Four Analogue Channels

The four-channel architecture allows technicians to observe several signals within the same time-correlated acquisition.

Typical measurements include:

• Crankshaft, camshaft, injector and ignition
• CAN High and CAN Low
• Battery voltage and starter current
• Sensor output and ECU response
• Primary ignition and injector control
• Alternator output and ripple
• Voltage and current waveforms
• Multiple power, ground and control signals

This helps diagnose timing, synchronisation, ignition, wiring and ECU-control problems that may not be visible using a single-channel or two-channel instrument.

Up to 1 GSa/s Real-Time Sampling

The ATO1004 provides a maximum real-time sampling rate of 1 GSa/s.

The model comparison information lists:

• Up to 1 GSa/s with one channel active
• Up to 500 MSa/s in the four-channel acquisition configuration

The available rate depends on active channels and acquisition settings. The page should therefore use up to 1 GSa/s, rather than 2 GSa/s.

This sampling performance supports analysis of:

• Ignition transitions
• Injector switching edges
• CAN bus waveform shape
• PWM signals
• Short control pulses
• Sensor dropouts
• Electrical noise
• Intermittent voltage disturbances

Up to 110 Mpts Acquisition Memory

The ATO1004 provides up to 110 Mpts memory depth.

Published model allocation includes:

• Up to 110 Mpts with one channel
• Up to 55 Mpts in the four-channel configuration

Deep acquisition memory supports longer captures while retaining sufficient sample detail for waveform zoom and post-acquisition analysis.

It is useful for:

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

The product page should not list 220 Mpts for the ATO1004.

Up to 78,000 Waveforms per Second

The ATO1004 supports waveform capture rates up to 78,000 wfms/s.

Fast waveform acquisition improves the probability of detecting:

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

The 300,000 wfms/s specification applies to higher ATO2004 and ATO3000-class models, not the ATO1004.

Automotive Diagnostic Presets

The ATO1004 includes automotive test presets that help technicians configure voltage range, time base and trigger settings for common vehicle measurements.

Charging-System Tests

Supported applications include:

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

These tests can help identify battery, alternator, regulator, wiring and control-system problems.

Starting-System Tests

Starting-system applications include:

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

A suitable automotive current clamp is required for current measurements.

Sensor Tests

The ATO1004 can be used for:

• 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
• Vehicle-speed sensors

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
• Cooling fans
• Variable-valve-timing systems

Ignition Tests

The oscilloscope supports:

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

Appropriate high-voltage and ignition probes must be used.

Vehicle Network Tests

Automotive network applications include:

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

These tests help identify voltage-level errors, termination problems, interference, timing faults and physical-layer communication issues.

Combination Measurements

The four-channel platform supports combined tests such as:

• Crankshaft and camshaft correlation
• Camshaft and primary ignition
• Primary ignition and injector voltage
• Crankshaft, camshaft and injector
• Crankshaft, camshaft, injector and secondary ignition
• CAN High, CAN Low, power and ground
• Sensor input and actuator response

These tests are useful for diagnosing synchronisation, ignition timing, ECU control and wiring faults.

Serial Bus Triggering and Decoding

The ATO1004 supports serial bus analysis for:

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

Protocol decoding helps technicians identify:

• Corrupted data
• Missing messages
• Communication interruptions
• Timing errors
• Abnormal voltage levels
• Electrical noise
• Bus termination problems
• Physical-layer faults

Serial decoders are listed as standard for the ATO1004.

Input System and Filtering

The model uses:

• Four BNC analogue inputs
• 1 MΩ input impedance
• Vertical sensitivity from 1 mV/div to 10 V/div
• Hardware low-pass filtering
• Independent channel control

The ATO1004 should not be described as supporting selectable 50 Ω input unless this is confirmed in the current manufacturer documentation.

Filtering can improve waveform visibility during:

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

Automatic Measurements

The ATO1004 supports automatic electrical and timing measurements such as:

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

These functions reduce manual cursor calculations during regular vehicle testing.

Waveform Mathematics and FFT

Analysis functions include:

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

FFT analysis can assist with:

• Alternator ripple analysis
• Switching-frequency measurement
• Harmonic analysis
• Noise-source identification
• Detection of unwanted oscillations
• Automotive power-electronics troubleshooting

10.1-Inch Capacitive Touchscreen

The ATO1004 includes:

• 10.1-inch industrial touchscreen
• 1280 × 800 resolution
• Capacitive multi-point touch
• Gesture-based waveform control
• Tablet-style interface
• Four-channel waveform viewing

The large screen provides space for waveforms, automotive presets, decoded bus data and measurements.

SigtestUI Operating Platform

The instrument uses Micsig’s SigtestUI environment and includes approximately 32 GB of internal storage.

The interface supports:

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

Rechargeable Battery Operation

The ATO1004 includes a rechargeable battery rated at approximately:

• 7.4 V
• 7500 mAh
• Up to approximately five hours, depending on operating conditions

Battery operation supports:

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

Operating time varies with screen brightness, active channels, Wi-Fi use and connected accessories.

Connectivity and Remote Control

Connectivity includes:

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

These interfaces support remote viewing, waveform transfer, automated control and display on an external monitor.

Applications

The Micsig ATO1004 is suitable for:

• Automotive workshop diagnostics
• Passenger-car electrical testing
• Commercial-vehicle diagnostics
• 12 V and 24 V charging tests
• Starting and cranking analysis
• Alternator ripple testing
• 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
• ECU input and output verification
• Intermittent fault diagnosis
• Road-test waveform capture
• Automotive technical training

Why Buy from RevineTech?

RevineTech supplies automotive and electronic test instruments for workshops, service centres, vehicle manufacturers, research teams and technical institutes.

Technical selection support can include:

• ATO1004 configuration
• Automotive voltage probes
• AC and DC current clamps
• Primary ignition probes
• Secondary ignition pickups
• Coil-on-plug probes
• Pressure transducers
• Vehicle-network breakout leads
• High-voltage differential probes
• Calibration documentation
• Automotive diagnostic kits