The QDB-5A Automobile Actuator Drive Detector offers a range of diagnostic functions for automotive maintenance, including oscilloscope, PWM drive output, stepper motor drive, signal simulation, ignition testing, and multimeter capabilities. These functions support testing and identifying issues in various vehicle components (note: only supports some models, to be identified by the user). Below is a detailed list of the main functions, categorized by type:
Oscilloscope Function:
- Test sensor signals by displaying waveforms.
- Adjustable vertical voltage gear and horizontal time base.
- Analyze changes in electrical signals over time to judge component quality.
2-Wire PWM Drive
- Drive solenoid valves (e.g., ZME, DRV, Solenoid valve).
- Drive solenoid injectors.
- Adjustable frequency (100-500Hz), duty cycle (1-40%), or pulse width.
- View load current and confirm settings on screen.
Step Motor Drive
- Drive idle motors.
- Drive instrument panel motors.
- Drive urea pump step motors (also applicable to headlight motors).
- Forward/backward control with left/right turn buttons.
- Max current: 1.5A.
PWM Signal Drive
- Drive 3-wire urea pump motors.
- Drive 3-wire ignition coils (signal drive type).
- Drive electronic fans.
- Adjustable frequency (100-500Hz), duty cycle (1-60%).
- VPP (VADJ Set): 1.25V-14.5V.
Signal Output Simulation
- Simulate air conditioner pressure sensors.
- Simulate rail pressure sensors.
- Simulate flow sensors.
- Frequency: 1-100kHz, Duty: 0-100%, VPP: 1.25-14.5V.
Ignition Drive
- Test ignition coils (direct drive type).
- Adjustable frequency (1-20Hz), pulse width (0-2000Us).
- Observe working condition to judge quality.
Multimeter Function
- Measure resistance (0-1MΩ).
- Measure voltage (DC 0-30V; cannot be connected reversely).
- Measure current (0-1.8A).
- Measure capacitance (10nF-1000uF).
- Diode measurement.
- Auto mode for V/R/CUR/DIODE/CAUTO.
Additional notes:
- Do not short-circuit Coil drive or Ignition to Power out terminal.
- Supports 12V or 24V power supply.
- TFT color screen for real-time display of parameters and waveforms.
- Button functions vary by mode (e.g., adjust frequency, duty, pulse width, stop/run, next mode).
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