1. Introduction
The ATORCH UD24 is a versatile 2.4-inch digital USB tester designed to measure various electrical parameters of USB and Type-C devices. It functions as a voltmeter, ammeter, power bank voltage detector, and supports PD trigger functions. This manual provides detailed instructions for its setup, operation, and maintenance.
It can be used as a USB tester or as a DC voltmeter. It is a high-end product created by the wisdom of the industry!
2. Key Features
- 2.4-inch high-cost true color digital display with Chinese and English measurement interface.
- Multi-interface support: Type-C, Micro-USB, USB, DC5.5 for both input and output.
- Comprehensive measurement capabilities: Voltage, Current, Power, Capacity, Energy, Resistance, Temperature.
- Supports PD fast charge detection and PD trigger functions.
- Line resistance measurement function for Android/Type-C cables.
- Five intelligent protection features: FCOP (Full Charge Over Protection), TC (Temperature Control), Over-C (Over Current), Low-V (Low Voltage), Over-V (Over Voltage).
- Bluetooth connectivity for potential app integration (indicated by Bluetooth icon).
- Alarm mode with siren sound and double display warning for abnormal conditions.
- Time charging reminder setting with a countdown up to 24 hours.
3. Specifications
| Parameter | Value |
|---|---|
| Voltage Measurement Range | 5V ~ 32.0V |
| Current Measurement Range | 0.00 ~ A (Max current not specified, typically up to 5A or more for USB-C) |
| Synchronization Time | 999 hours 59 minutes 59 seconds |
| Input Interface | Type C / Micro-USB / USB / DC5.5 |
| Output Interface | Type C / USB |
| Time Charging Reminder Setting | Countdown 24 hours, any set value |
| USB D+ Voltage Range | 0V ~ 2.99V |
| USB D- Voltage Range | 0V ~ 2.99V |
| Update Time | More than 500ms / times |
| Measurement Rate | Approximately 0.5 times / second |
| Alarm Mode | Siren sound + double display warning |
| Display Type | 2.4-inch true color digital display |
| Self-consumption Current | Less than 0.02A |
| Working Temperature | -10 ~ +60℃ |
| Operating Humidity | 10 ~ 80% (non-condensing) |
| Working Pressure | 80 ~ 106kPa |
| Color | Black |
| Material | ABS |
| Size | 125x59mm |
4. Product Overview and Components
The ATORCH UD24 USB Tester features a compact design with multiple input and output ports to accommodate various testing scenarios. Familiarize yourself with the components below:
- INPUT Micro USB: For Micro USB power input.
- INPUT DC5.5: For DC 5.5mm barrel jack power input.
- USB INPUT: Standard USB-A input port.
- Type-C INPUT: USB Type-C input port.
- USB OUTPUT: Standard USB-A output port.
- Type-C OUTPUT: USB Type-C output port.
- Power Supply 5-30V/NTC: Input for external power supply (5-30V) or NTC temperature sensor.
- Functional Test Interface: The main display screen.
- Bluetooth Indicator: Lights up when Bluetooth is active.
- M/+ Button: Used for menu navigation and increasing values.
- OK/- Button: Used for confirming selections and decreasing values.
- Power Indicator: Shows the power status of the device.
- Tester Cover: Protective caps for the USB-A and Type-C connectors.
5. Setup Instructions
To begin using your ATORCH UD24 USB Tester, follow these steps:
- Powering the Tester: Connect the UD24 tester to a power source using one of its input ports (USB, Micro USB, Type-C, or DC5.5). The display will light up, indicating it is ready for use.
- Connecting a Device for Testing: Once the tester is powered, connect the device you wish to test (e.g., smartphone, power bank, USB load) to one of the UD24's output ports (USB or Type-C). Ensure the connection is secure.
- In-line Testing: For in-line testing of chargers or power banks, connect the charger/power bank to an input port of the UD24, and then connect your device to an output port of the UD24.
6. Operating Instructions
The UD24 provides real-time data on its 2.4-inch display. Use the M/+ and OK/- buttons to navigate and control functions.
6.1 Basic Measurement
Once connected, the UD24 will automatically display real-time measurements such as Voltage (Vol), Current (Cur), Power (Pwr), Resistance (Res), Energy (Ene), and Capacity (Cap). The display also shows elapsed time (Time) and temperature (T(out)/T(in)).
6.2 Navigation and Functions
- M/+ Button: Press to cycle through different display screens or menu options. Hold to enter specific settings or increase values.
- OK/- Button: Press to confirm selections or decrease values. Hold to exit menus or reset certain parameters.
6.3 PD Fast Charge Detection
The UD24 supports Power Delivery (PD) fast charge protocols. When connected to a PD-compatible charger and device, it will display relevant PD negotiation information and charging status.
6.4 Line Resistance Measurement
The tester can measure the resistance of USB cables (Android/Type-C). Connect the cable to the appropriate ports on the UD24 to get a resistance reading, which helps in identifying faulty or inefficient cables.
6.5 Battery Power Percentage Display
The UD24 can display the battery power percentage with a color-coded indicator for quick visual assessment:
- Green: More than 80% charge.
- Yellow: Less than 30% charge.
- Red: Less than 10% charge.
6.6 Alarm Function
The device features an alarm mode that provides a siren sound and a double display warning when certain parameters (e.g., over-voltage, over-current) exceed predefined limits, ensuring safety and preventing damage.
6.7 Testing with Electronic Loads
The UD24 can be used in conjunction with electronic loads to test power supply stability and capacity under various load conditions.
6.8 Broad Compatibility
The UD24 is compatible with a wide range of devices and power sources, including Type-C power banks, computers, smart sockets, chargers, phones, tablets, notebooks, ordinary USB chargers, desktop PCs, USB adjustable loads, USB fans, USB keyboards, USB lights, mice, and mobile hard disks.
7. User Tips
- For accurate readings, ensure all connections are secure and free from debris.
- Utilize the various input/output ports to test different devices and chargers effectively.
- Pay attention to the color-coded battery percentage display for quick status checks.
- If an alarm sounds, immediately check the displayed parameters for potential issues like over-voltage or over-current.
8. Maintenance
- Cleaning: Use a soft, dry cloth to clean the device. Do not use liquid cleaners or solvents.
- Storage: Store the UD24 in a cool, dry place away from direct sunlight and extreme temperatures.
- Handling: Avoid dropping the device or subjecting it to strong impacts.
- Disassembly: Do not attempt to disassemble or repair the device yourself, as this will void any potential warranty and may cause damage.
9. Troubleshooting
- No Display/Power Issues:
- Ensure the tester is securely connected to a working power source.
- Try a different input port or power adapter.
- Inaccurate Readings:
- Check all cable connections for looseness or poor contact.
- Try using different cables or testing with a known good device/charger.
- Ensure the device is within its specified operating temperature and humidity ranges.
- Alarm Sounding:
- Observe the display for specific warning messages (e.g., Over-V, Over-C, Low-V).
- Disconnect the device or power source causing the abnormal condition immediately.
- Device Not Recognized/Charging:
- Verify that you are using the correct input and output ports.
- Ensure the connected device is compatible with the power source.
10. Warranty and Support
For technical support, service, or warranty inquiries, please contact your retailer or the manufacturer directly. Keep your proof of purchase for any warranty claims.
