Heemol USB C Tester KWS-2302C Instruction Manual

1. Product Overview

The Heemol USB C Tester KWS-2302C is a versatile multimeter designed to accurately measure various electrical parameters of USB-C devices. It is ideal for testing mobile phones, laptops, and rechargeable batteries during charging. Featuring a 1.06-inch IPS screen and a durable matte aluminum alloy casing, this device offers clear readability and robust performance.

Key Features:

• 240W Power Measurement: Accurately identifies parameters of mobile phones, laptops, and rechargeable batteries in charging state.
• 1.06-inch IPS Screen: Ensures clear display of text and data.
• Durable Construction: Made from matte aluminum alloy, resistant to wear and drops.
• Curve Display Function: Visualizes voltage and current changes over time (5 min, 15 min, 60 min, 2 hours grids).
• Comprehensive Parameter Measurement: Measures instantaneous voltage, instantaneous current, instantaneous power, maximum voltage, maximum current, maximum power, charging time, electrical energy, capacity, and instantaneous temperature.
• High Current Support: Equipped with 12A high-current terminals, supporting up to 12A for stable operation.
• Multiple Charging Protocol Support: Compatible with PD2.0, PD3.0, PPS, QC2.0, QC3.0, FCP, SCP, AFC, PE, DASH VOOC, Super VOOC.

2. Setup and Connection

The KWS-2302C USB C Tester is designed for simple plug-and-play operation. Follow these steps to connect the tester and begin monitoring your device's charging parameters.

1. Identify Ports: The tester has a male USB-C connector on one end and a female USB-C port on the other.
2. Connect to Power Source: Plug the male USB-C connector of the KWS-2302C tester into your power source (e.g., wall charger, power bank, laptop USB-C port).
3. Connect Device: Plug your device's USB-C charging cable into the female USB-C port of the KWS-2302C tester. Then, connect the other end of your charging cable to your mobile phone, laptop, or other USB-C powered device.
4. Power On: The tester will automatically power on and display real-time charging data once connected.

3. Operating Instructions

The KWS-2302C provides a clear display of various charging parameters. The device typically features a single button for navigating through different display modes or functions.

3.1 Display Information

The 1.06-inch IPS screen displays up to 10 parameters simultaneously:

• Voltage (V): Instantaneous voltage.
• Current (A): Instantaneous current.
• Power (W): Instantaneous power.
• Max Voltage (Max V): Highest voltage recorded.
• Max Current (Max A): Highest current recorded.
• Max Power (Max W): Highest power recorded.
• Charging Time (T): Elapsed charging duration.
• Electrical Energy (Wh): Total energy transferred.
• Capacity (mAh): Total charge capacity transferred.
• Temperature (CPU): Internal temperature of the tester.

3.2 Navigating Modes

The tester typically has a single button on its side. Pressing this button allows you to cycle through different display screens or functions. Common functions include:

• Main Measurement Screen: Displays real-time V, A, W, T, Wh, mAh, and CPU temperature.
• Curve Display: Shows voltage and current changes graphically over selected time intervals (5 min, 15 min, 60 min, 2 hours). This function provides a visual representation of charging stability and fluctuations.
• Protocol Detection: Some modes may display the detected fast charging protocol (e.g., PD, QC).
• Data Storage/Reset: Long-pressing the button might reset accumulated data (Wh, mAh) or save current readings. Refer to the on-screen prompts for specific actions.

4. Maintenance

To ensure the longevity and accurate performance of your Heemol USB C Tester KWS-2302C, follow these maintenance guidelines:

• Cleaning: Use a soft, dry cloth to clean the device. Avoid using liquid cleaners, solvents, or abrasive materials, as these can damage the screen or casing.
• Storage: Store the tester in a cool, dry place away from direct sunlight and extreme temperatures.
• Handling: While the device is designed to be durable, avoid dropping it or subjecting it to strong impacts.
• Moisture: Keep the device away from water and high humidity to prevent internal damage.
• Connector Care: Ensure the USB-C connectors are free from dust and debris before plugging in cables.

5. Troubleshooting

If you encounter issues with your KWS-2302C USB C Tester, refer to the following common troubleshooting steps:

• No Display/No Power:
  • Ensure both the power source and the connected device are functioning correctly.
  • Check that the USB-C connections are secure and fully inserted.
  • Try using different cables or power sources to rule out external issues.
• Inaccurate Readings:
  • Verify that the cables used are of good quality and support the expected power levels.
  • Ensure the power source and device are compatible with the tester's specifications (e.g., within 30V and 12A limits).
  • Environmental factors like extreme temperatures can sometimes affect readings; ensure operation within recommended conditions.
• Button Unresponsive:
  • Gently press the button to ensure it's not stuck.
  • Disconnect and reconnect the tester to reset it.
• Device Not Charging Through Tester:
  • Confirm that the charging cable is correctly connected to both the tester's output port and your device.
  • Bypass the tester and connect your device directly to the power source to confirm the power source and cable are working.

6. Specifications

Below are the technical specifications for the Heemol USB C Tester KWS-2302C.