Introduction
The AVHzY K2 USB Voltage & Current Meter is a professional-grade testing device designed for comprehensive analysis of USB-C power delivery systems. It provides real-time measurements of voltage, current, and power, along with advanced features such as protocol detection, ripple measurement, and PC software connectivity for detailed data logging and firmware updates. This manual provides essential information for setting up, operating, maintaining, and troubleshooting your K2 meter.
Setup
Before using your AVHzY K2 meter, please ensure all components are present and undamaged. The device is designed for in-line measurement between a power source (charger) and a load (device).
- Initial Inspection: Carefully unbox the K2 meter and inspect it for any visible damage.
- Connecting the Meter:
- Connect the USB-C male end of the K2 meter to your USB-C power source (e.g., wall charger, power bank).
- Connect your USB-C device (e.g., phone, laptop, tablet) to the USB-C female port on the K2 meter.
The meter will power on automatically and begin displaying real-time data.
Operating Instructions
The K2 meter features a 1.54-inch color IPS display and intuitive controls for navigating various measurement modes and settings.
1. Real-time Measurement Display
Upon connection, the main screen displays live voltage (V), current (A), and power (W) readings. It also tracks accumulated capacity (Ah) and energy (Wh).
2. Fast Charging Protocol Detection
The K2 meter automatically detects various fast charging protocols, including PD3.1, EPR (28V), AVS induction, QC, FCP, SCP, and more. This information is displayed on a dedicated screen, allowing you to verify charger compatibility.
3. Ripple and Waveform Analysis
Access the ripple detection and waveform frequency analysis modes to assess the stability and quality of the power output. This feature is crucial for identifying noisy power sources that could potentially harm sensitive electronics.
4. PC Software Connectivity
Connect the K2 meter to a PC via its USB-HID interface for advanced monitoring, data logging, and firmware updates. The PC software allows for detailed curve recording and analysis of charging performance over time.
Maintenance
Proper maintenance ensures the longevity and accuracy of your AVHzY K2 meter.
- Cleaning: Use a soft, dry cloth to clean the device. Avoid using abrasive cleaners or solvents.
- Storage: Store the meter in a cool, dry place away from direct sunlight and extreme temperatures.
- Firmware Updates: Periodically check the official AVHzY website for firmware updates. Connect the device to a PC using the USB-HID interface and follow the instructions provided with the update package. Firmware updates can improve performance, add new features, and fix bugs.
Troubleshooting
If you encounter issues with your K2 meter, refer to the following common problems and solutions:
| Problem | Possible Cause | Solution |
|---|---|---|
| No display when connected | Insufficient power from source; faulty cable; device not drawing power. | Ensure the power source is active. Try a different USB-C cable. Verify the connected device is functioning. |
| Inaccurate readings | Poor connection; damaged cable; device malfunction. | Reconnect the meter and cables securely. Test with known good cables and chargers. |
| PC software not detecting meter | Missing drivers; incorrect USB port; faulty USB cable. | Install necessary drivers from the AVHzY website. Try a different USB port on your PC. Use a high-quality USB-C data cable. |
| Screen frozen or unresponsive | Temporary software glitch. | Disconnect the meter from all power sources for a few seconds, then reconnect. If the issue persists, check for firmware updates. |
Specifications
| Feature | Detail |
|---|---|
| Brand | AVHzY |
| Model | K2B (CC1) |
| Power Source | Corded Electric (via USB-C) |
| Voltage Measurement Range | 3.3V - 36V (K2-226 version), 3.3V - 48V (K2-237 version) |
| Current Measurement Range | 0A - 6A (10A Peak) |
| Voltage Resolution | 0.0001 V |
| Current Resolution | 0.0001 A |
| Display | 1.54" Color IPS (240 x 240 resolution) |
| Supported Protocols | PD3.1, EPR (28V), AVS induction, various fast-charge protocols |
| Connectivity | USB-HID for PC connection (firmware updates, monitoring) |
| USB-C Port | 24P Straight-Through High-Conductivity |
| Compatible Devices | USB-C chargers, cables, phones, laptops, power banks |
| UPC | 735209487146 |
Warranty and Support
AVHzY products are manufactured to high-quality standards. For warranty information, please refer to the documentation included with your purchase or visit the official AVHzY website. If you require technical assistance or have questions regarding your K2 USB Voltage & Current Meter, please contact AVHzY customer support through their official channels.