1. Overview
The ANENG AOS12 is a versatile digital instrument combining the functions of a handheld ultra-thin oscilloscope and a multimeter. Its compact design and 3.2-inch TFT color screen make it portable and easy to use. The intuitive menu interface allows for seamless switching between oscilloscope and multimeter modes with a single click. A unique feature is the shared input field for both functions, eliminating the need for a separate oscilloscope probe for basic waveform measurements.
Important Note: Due to shared ground potential between the oscilloscope input port and the charging port, simultaneous charging and measurement is not possible. An anti-misoperation switch is installed at the port; ensure it is correctly positioned when measuring or charging. If the device experiences lag or crashes, a restart may be required.
2. Package Contents
The ANENG AOS12 package typically includes the following items:
Image: Contents of the ANENG AOS12 package, showing the waveform multimeter, storage bag, test pen lines, manual, support frame, and charging cable.
- Waveform Multimeter
- Storage Bag
- Test Pen Line (Probes)
- User Manual
- Support Frame (self-adhesive)
- Charging Cable (Type-C)
3. Setup
3.1 Initial Charging
The device is equipped with a 3.7V 1500mAh lithium battery. To charge, connect the provided Type-C charging cable to the device and a suitable power source. A red indicator light on the screen will illuminate during charging.
Image: Demonstrates connecting the Type-C charging cable to the device and a power adapter. A red indicator light confirms charging.
3.2 Attaching the Support Frame
The device comes with a self-adhesive support frame for convenient daily measurement work. Attach it to the back of the device to allow for horizontal and vertical screen standing positions.
Image: Shows the self-adhesive back support frame being attached to the device, enabling it to stand upright.
3.3 Stare-Proof Switch
Locate the stare-proof switch near the COM pen/charging port. This switch must be correctly positioned for either charging or measurement, as simultaneous operation is not supported.
Image: Close-up of the device's bottom, highlighting the input and COM ports, charging/data transfer port, and the stare-proof switch.
4. Operating Instructions
4.1 Power On/Off and Mode Switching
Long press the POWER button to turn the device on or off. The device features a high-definition large screen display for clear readings.
To switch between Oscilloscope mode and Multimeter mode, long press the AUTO/MODE key. The device also supports switching between horizontal and vertical screen display modes.
Image: Diagram of the ANENG AOS12 controls, showing the Power button, HOLD/SAVE key, AUTO/MODE key, Arrow keys, MENU key, Input and COM ports, and charging indicator.
4.2 Oscilloscope Mode Operation
In Oscilloscope mode, the screen displays the waveform. Key parameters are shown at the top and bottom of the screen.
- Running State: The top left indicates the running state (e.g., RUN M:10ms T:0mV).
- Pause/Start Test: Press the HOLD/SAVE key to pause or start the test.
- Adjusting Waveform:
- Use the Up/Down arrow keys to adjust the voltage amplitude.
- Use the Left/Right arrow keys to adjust the time scale.
- Press the MOVE button to control the waveform position using the arrow keys.
- Trigger Settings:
- Press the TRIG button. Use the Up/Down arrow keys to adjust the trigger level.
- Long press MENU to access the expansion menu for trigger method (automatic, normal, single) and trigger edge (rising, falling).
- Coupling: Press the AC button. Use the Up/Down arrow keys to adjust DC or AC coupling.
- Measurement Information: Long press MENU to open/close additional measurement information such as minimum value, root mean square, and duty cycle.
- Waveform Support: The device supports displaying a variety of adjustable waveforms from external signal generators.
Video: A comprehensive demonstration of the ANENG AOS12, showcasing its features, mode switching, waveform adjustments, and various measurement capabilities.
Image: Illustrates the device displaying an adjustable waveform, highlighting its capability to accurately display various input signal waveforms.
4.3 Multimeter Mode Operation
In Multimeter mode, the device displays numerical measurements. The current gear symbol and measurement value are shown on the screen.
- Switching Gears: Use the Up, Down, Left, and Right arrow keys to switch between different measurement functions (e.g., DC Voltage, AC Voltage, Resistance, Capacitance, Diode, On-Off Beep, Millivolt).
- Automatic/Manual Ranging: Short press the AUTO/MODE key to automatically select the measurement range. Long press to switch to manual range selection.
- Data Hold: Press the HOLD/SAVE button to maintain the currently detected value on the screen.
- Current Measurement: For AC and DC current measurements, the multimeter must be connected in series to the circuit. Do NOT connect directly across voltage sources when measuring current, as this will damage the instrument.
Image: Detailed instructions and diagrams for safely measuring current, emphasizing series connection and warning against direct voltage contact.
Image: Visual examples of various multimeter functions including DC voltage, mV DC voltage, capacitance, AC voltage, on-off beep, diode, and resistance measurements.
4.4 General Settings
Access general settings by long pressing the MENU button.
- Language Settings: Switch between Chinese and English display.
- Automatic Shutdown: Configure automatic shutdown time (Closed, 15 minutes, 30 minutes, 60 minutes, 120 minutes).
- Backlight Brightness: Adjust screen brightness (30%, 50%, 80%, 100%).
- Backlight Time: Set backlight duration (Off, 30s, 60s, 120s).
- Baseline Calibration: If your settings are messed up, you can use this to restore to factory settings. Do not connect the test probes during calibration, and do not perform other operations.
- Factory Resume: Use this option to restore the device to its original factory settings.
5. Data Management
5.1 Waveform Storage
The device supports waveform storage, capable of storing approximately 104 waveforms. In oscilloscope mode, long press the HOLD/SAVE key to take a screenshot of the current interface and save it.
5.2 Computer Connection
To view saved waveforms on a computer, enter the storage mode via the expansion menu (long press MENU). Connect the meter to your computer using the matching Type-C data cable. You can then view the screen pictures taken during the measurement.
Image: Shows the device connected to a laptop via Type-C cable, demonstrating how to access saved waveform data.
6. Specifications
6.1 General Specifications
- Model Number: AOS12
- Brand Name: ANENG
- Certification: CE
- DIY Supplies: Electrical
- Material: ABS+TPE
- Maximum Count: 9999 count
- Language: Chinese/English
- Battery Type: 3.7V 1500mAh (Included)
- Screen Backlight Time: Close-30s-60s-120s
- Adjustable Screen Brightness: 30%-50%-80%-100%
- Back Support Frame: Yes
- Automatic Shutdown: Yes
- Low Battery Prompt: Yes
- Data Retention: Yes
- True RMS: Yes
- Weight: 157g
- Dimensions: 14.3cm (5.6 inch) x 7.05cm (2.7 inch) x 2.16cm (0.85 inch)
Image: Diagram showing the physical dimensions of the ANENG AOS12 device.
6.2 Multimeter Technical Indicators
| Function | Range | Resolution | Precision |
|---|---|---|---|
| DC voltage (V) | 999.9mV-600.0V | 0.1mV-0.1V | ±(0.5%+ 3) |
| DC voltage (mV) | 9.999mV-99.99mV | 0.001mV-0.01mV | ±(0.5%+ 3) |
| AC voltage (V) | 999.9mV-600.0V | 0.1mV-0.1V | ±(1.0%+ 3) |
| AC voltage (mV) | 9.999mV-99.99mV | 0.001mV-0.01mV | ±(1.0%+ 3) |
| Resistance | 99.99Ω-99.99MΩ | 0.01Ω-0.01MΩ | ±(5.0% + 20) |
| Capacitor | 9.999nF-99.99mF | 0.001nF-0.01mF | ±(5.0%+ 5) |
| Frequency (under AC voltage, up to 100kHz) | 99.99Hz-999.9kHz | 0.01Hz-0.1kHz | +(0.1%+ 2) |
| Diode | √ | Back support frame | √ |
| On-Off beep | √ | Automatic shutdown | √ |
| Data retention | √ | Low battery prompt | √ |
| True RMS | Material | ABS + TPE | |
| Battery type | 3.7V 1500mAh | Language | Chinese/English |
| Adjustable screen brightness | 30%-50%-80%-100% | Maximum count | 9999 count |
| Screen backlight time | Close-30s-60s-120s | Range | Automatic/manual |
| Sampling rate | 3 times/s |
Note: The parameters are for reference only, and the actual measurement of the specific equipment shall prevail.
6.3 Oscilloscope Technical Specifications
| Characteristic | Explain | |
|---|---|---|
| Bandwidth | 5 MHz | |
| Sampling | Sampling method | real-time sampling |
| Real-time sample rate | 48MSa/s | |
| Number of channels | 1 (single channel) | |
| Input | Input coupling | DC, AC |
| Input impedance | 10MΩ, @16pf | |
| Maximum input voltage | <300V (DC + AC peak) | |
| Horizontal | Sample Rate Range | 1.5Sa/s-48MSa/s |
| Waveform interpolation | (Sinx)x | |
| Sweep speed range | 100Ns/div-20s/div | |
| Time base accuracy | 20Ppm | |
| Record length | Up to 64Kbyte | |
| Vertical | Sensitivity | 100mV/div-100V/div |
| Displacement range | 4 squares (plus or minus) | |
| Analog bandwidth | 5 MHz | |
| Low frequency response | Greater than 10Hz | |
| Rise time | Less than 100ns | |
| DC gain accuracy | ±3% | |
| Measure | Measurement information | Frequency, peak to peak, maximum/minimum, root mean square, duty cycle |
| Trigger | Trigger method | Automatic, normal, single shot |
| Trigger edge | Rising edge, falling edge | |
| Screen display | VA color reverse display screen | |
| Waveform storage | It can store about 104 waveforms | |
Note: The parameters are for reference only, and the actual measurement of the specific equipment shall prevail.
7. User Tips
- Always ensure the anti-misoperation switch is in the correct position for either charging or measurement to prevent damage.
- If the device becomes unresponsive or crashes, perform a restart by long-pressing the power button.
- For current measurements, always connect the multimeter in series with the circuit. Never connect it directly across a voltage source.
- Before measuring capacitance, ensure the capacitor is fully discharged to prevent damage to the device or inaccurate readings.
- Utilize the self-adhesive support frame for hands-free operation and better viewing angles during measurements.
8. Troubleshooting
- Device not powering on: Ensure the battery is charged. Connect the Type-C cable and check for the red charging indicator.
- Inaccurate readings:
- Check probe connections for secure contact.
- Ensure the correct measurement mode (AC/DC, Voltage/Current/Resistance) is selected.
- For current measurements, verify series connection.
- Perform a baseline calibration if oscilloscope readings appear off (refer to Factory Resume in menu).
- Screen unresponsive or frozen: Long press the POWER button to restart the device.
- Cannot measure while charging: This is normal operation. Ensure the anti-misoperation switch is set to the measurement position when taking readings.
9. Maintenance
- Cleaning: Use a soft, dry cloth to clean the device. Do not use abrasive cleaners or solvents.
- Storage: Store the device in the provided storage bag in a cool, dry place away from direct sunlight and extreme temperatures.
- Battery Care: Charge the lithium battery regularly, even if not in use, to maintain its lifespan. Avoid fully discharging the battery for extended periods.
- Probe Care: Inspect test probes for any damage before each use. Replace damaged probes immediately.
- Firmware Updates: Check the manufacturer's website for any available firmware updates to ensure optimal performance.
10. Warranty and Support
For warranty information, technical support, or service inquiries, please refer to the official ANENG website or contact your retailer. Keep your purchase receipt as proof of purchase for warranty claims.
