The Micsig ATO2002 Automotive Tablet Oscilloscope combines two-channel waveform acquisition, vehicle-specific diagnostic functions, serial bus analysis and battery-powered operation in a portable tablet-style instrument.
It is suitable for automotive technicians, service centres, vehicle manufacturers, training institutes and diagnostic engineers who need to analyse electrical signals directly on passenger cars, commercial vehicles and automotive electronic systems.
The ATO2002 provides:
- Two analogue input channels
- 200 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 diagnostic presets
- Standard automotive and embedded bus decoding
- 10.1-inch capacitive touchscreen
- 32 GB internal storage
- Wi-Fi and mobile-device connectivity
- Rechargeable 7500 mAh battery
The two-channel configuration is useful for correlated automotive measurements such as crankshaft versus camshaft, CAN High versus CAN Low, voltage versus current and sensor input versus ECU response.
200 MHz Analogue Bandwidth
The ATO2002 provides 200 MHz analogue bandwidth across two analogue input channels.
It is suitable for testing:
- Crankshaft and camshaft sensor signals
- Primary ignition waveforms
- Secondary ignition signals 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
- Switching power-electronics circuits
- General electronic control signals
The published ATO Series comparison lists a rise time of up to approximately 3.5 ns for the ATO2002. Actual measurement performance also depends on probe bandwidth, grounding, source impedance and connection quality.
Two Analogue Channels
The two-channel architecture allows technicians to compare related vehicle signals in the same time-correlated acquisition.
Typical paired measurements include:
- Crankshaft and camshaft signals
- CAN High and CAN Low
- Battery voltage and starter current
- Sensor output and ECU response
- Primary ignition and injector control
- Voltage and current waveforms
- Alternator output and AC ripple
- Reference signal and measured signal
- Input and actuator output
The two-channel design is suitable for technicians who need a portable automotive oscilloscope but do not require simultaneous four-signal capture.
Up to 1 GSa/s Real-Time Sampling
The verified model-specific maximum real-time sampling rate is 1 GSa/s.
This sampling performance helps technicians observe:
- Fast ignition transitions
- Injector switching edges
- CAN bus waveform shape
- Narrow control pulses
- Electrical noise
- Timing changes
- Sensor dropouts
- Intermittent voltage disturbances
The product page should not state 2 GSa/s for the ATO2002. That higher specification applies to the ATO2004, ATO3002 and ATO3004 models.
Up to 110 Mpts Acquisition Memory
The ATO2002 provides up to 110 Mpts memory depth.
Deep memory allows longer signal periods to be captured while retaining enough waveform detail for zooming and post-acquisition inspection.
This is useful for:
- Extended cranking analysis
- Long CAN and CAN FD captures
- Road-test waveform recording
- Intermittent sensor-fault diagnosis
- Vehicle start-up sequences
- Ignition misfire investigation
- Charging-system monitoring
- Long actuator-control events
- Communication-network troubleshooting
The product page should not list 220 Mpts for this model. The model-specific maximum is 110 Mpts.
Up to 78,000 Waveforms per Second
The ATO2002 provides a maximum waveform capture rate of approximately 78,000 wfms/s.
Fast waveform capture improves the probability of identifying:
- Ignition dropouts
- Communication glitches
- Injector abnormalities
- Runt pulses
- Timing errors
- Intermittent sensor noise
- Unexpected voltage spikes
- Brief power interruptions
The 300,000 wfms/s figure belongs to the ATO2004 and ATO3000-class models and should not be used for the ATO2002.
Dedicated Automotive Diagnostic Presets
The ATO2002 includes automotive test functions that help technicians configure voltage range, time base and trigger settings for common vehicle measurements.
Charging-System Tests
Supported diagnostic applications include:
- 12 V charging systems
- 24 V charging systems
- Alternator AC ripple
- Smart alternator control
- Charging-voltage behaviour
- Charging-system control signals
These measurements can help identify alternator, battery, wiring, regulator and charging-control 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 Testing
Automotive sensor applications include:
- 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
These tests help technicians compare measured signals against expected waveform behaviour.
Actuator Testing
The instrument can be used to test:
- 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 analyse control voltage, switching behaviour, timing and current response with suitable probes.
Ignition Testing
The ATO2002 supports:
- Primary ignition analysis
- Secondary ignition testing
- Coil-on-plug diagnostics
- Dwell-time measurement
- Burn-time analysis
- Ignition timing comparison
- Misfire investigation
Suitable ignition probes must be used for safe measurement of high-voltage ignition systems.
Vehicle Network Testing
Vehicle network applications include:
- CAN High
- CAN Low
- CAN FD
- LIN
- FlexRay
- K-line
These tests help locate voltage-level errors, termination faults, interference, timing problems and physical-layer communication issues.
Standard Serial Bus Triggering and Decoding
The ATO2002 supports serial triggering and decoding for:
- RS232, RS422, RS485 and UART
- CAN
- CAN FD
- LIN
- SPI
- I²C
Protocol analysis helps technicians identify:
- Incorrect or corrupted data
- Missing messages
- Communication interruptions
- Timing errors
- Abnormal voltage levels
- Electrical noise
- Bus termination problems
- Physical-layer faults
The model’s serial decoding functions should be listed as included unless the actual supplied regional configuration differs.
No Segmented Acquisition
The ATO Series comparison identifies segmented acquisition as unavailable on the ATO2002 and ATO1004.
The product page should therefore avoid claiming:
- 10,000-segment acquisition
- Event-segment recording
- Segmented memory storage
Those functions are available on higher ATO2004 and ATO3000 configurations.
Input System and Filtering
The ATO2002 provides:
- 1 MΩ analogue input impedance
- Vertical sensitivity from 1 mV/div to 10 V/div
- 20 MHz bandwidth limit
- Adjustable low-pass filtering
- Two independent BNC input channels
Unlike higher ATO models, the ATO2002 is listed with 1 MΩ input impedance only, not selectable 1 MΩ and 50 Ω impedance.
Filtering can help improve waveform visibility during:
- Alternator ripple measurements
- Ignition testing
- Injector analysis
- Low-frequency sensor measurements
- Power-supply diagnostics
- Vehicle-network troubleshooting
-
Automatic Measurements
The ATO platform provides automatic measurements for routine waveform evaluation.
Available 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
The ATO2002 product documentation lists up to 31 automatic measurements.
Waveform Mathematics and Analysis
Available analysis functions include:
- Addition
- Subtraction
- Multiplication
- Division
- FFT
- Filtering
- Cursor measurements
- Reference waveform comparison
- Automatic scaling
- Measurement statistics
FFT analysis can help with:
- Alternator ripple investigation
- Switching-frequency analysis
- Harmonic measurement
- Noise-source identification
- Detection of unwanted oscillations
- Automotive power-electronics troubleshooting
-
10.1-Inch Capacitive Touchscreen
The ATO2002 includes:
- 10.1-inch industrial TFT LCD
- 1280 × 800 resolution
- Capacitive multi-point touchscreen
- 11 × 10 waveform grid
- Gesture-based waveform control
- Tablet-style interface
The large display provides clear viewing of two waveforms, measurements, automotive diagnostic menus and decoded bus information.
Android-Based SigtestUI Platform
The instrument uses Micsig’s SigtestUI operating environment and provides 32 GB internal storage.
The platform supports:
- Touch-based oscilloscope operation
- Automotive diagnostic applications
- Waveform storage
- Screenshot capture
- Video recording
- File management
- Remote operation
- Software updates
- USB mouse operation
The internal storage can be used for waveform files, screenshots, recordings and diagnostic records.
Rechargeable Battery Operation
The ATO2002 includes a:
- 7.4 V rechargeable lithium-ion battery
- 7500 mAh battery capacity
- Approximate operating time of up to three hours
- Portable tablet-style enclosure
- Integrated hand strap
Battery operation supports:
- Under-bonnet diagnostics
- Road testing
- Workshop fault-finding
- Commercial-vehicle maintenance
- Field service
- Mobile technical training
- Remote electronic testing
Battery life depends on screen brightness, active channels, Wi-Fi use and connected accessories.
Connectivity and Remote Control
The ATO2002 supports:
- Wi-Fi
- USB 3.0 Host
- USB 2.0 Host
- USB Type-C
- HDMI output
- Trigger output
- Grounding connection
- PC remote-control software
- Android mobile application
- iOS mobile application
- SCPI control
HDMI allows the oscilloscope display to be shown on a larger monitor for training, demonstrations and collaborative diagnostics.
Applications
The Micsig ATO2002 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
- ECU input and output verification
- Intermittent electrical fault diagnosis
- Road-test waveform capture
- Automotive technical training
- General electronic circuit testing
