1. Introduction
The ALIENTEK UT70 is a versatile USB tester designed for real-time monitoring and analysis of various electrical parameters in USB-powered devices. It features a 0.96-inch HD IPS screen, a dedicated 16-bit ADC chip, and supports multiple fast charge protocols. This manual provides detailed instructions for its setup, operation, and maintenance, ensuring you can effectively utilize all its functionalities.
2. Key Features
- Comprehensive Interface Coverage: Integrates Type-C, USB-A, and Micro-USB ports for full compatibility.
- High-Resolution Display: Features a 0.96-inch HD IPS screen for clear and detailed data visualization.
- High Precision Measurement: Equipped with a dedicated 16-bit ADC chip and high-precision low-temperature drift sampling resistance, achieving 0.0001 display resolution for accurate voltage, current, and power readings.
- Real-time Monitoring: Provides real-time monitoring of voltage, current, power, electricity, capacity, and waveform curves.
- Fast Charge Protocol Detection & Triggering: Supports automatic detection and manual triggering for protocols including QC2.0, QC3.0, PD2.0, PD3.0, PD3.1, FCP, SCP, AFC, OPPO-VOOC, MTK-PE, VIVO-VFCP, BC1.2, and APPLE 2.4A.
- Offline Data Recording: Allows storage of up to 5 groups of data records, with programmable start/stop conditions and recording duration (8 minutes to 99 hours).
- PC Software Support: Connects to a host computer via USB-HID interface (no driver installation required) for advanced function control, waveform viewing, protocol triggering, 1kHz data acquisition, real voltage restoration, and firmware upgrades.
- Cable Detection: Identifies TYPE-C E-Marker and Dash cables to quickly understand charging cable performance.
- Linear Resistance Measurement: Measures the internal resistance (line resistance) of power supply cables using the pressure difference method.
- Power Bank Mode: Provides intermittent dummy loads to maintain external power supply for easy detection and use with fast charging devices that may stop at low load currents.
3. Technical Specifications
| Item | Range | Resolution | Precision |
|---|---|---|---|
| Product Model | ATK-PTUT70 | ||
| Product Size | 67.5mm x 24.5mm x 10.5mm | ||
| Screen Size | 0.96 inch IPS screen | ||
| Operating Voltage | DC 3.6 ~ 28V | ||
| Working Current | 33mA | ||
| Operating Temperature | -20 ~ 70℃ | ||
| Maximum Sampling Rate | 1000Hz | ||
| Minimum Display Resolution | 0.1mV /mA | ||
| Current Sampling Accuracy | ±(1.0‰+2)A | ||
| Voltage Sampling Accuracy | ±(1.2‰+2)A | ||
| Monitoring Voltage | 0 ~ 28V | 0.0001V | ±(1.0‰+2) |
| Monitoring Current | ±7A | 0.0001A | ±(1.0‰+3) |
| Monitoring Power | 0 ~ 196W | 0.0001W | ±(1.0‰+2) |
| D+/D- Voltage | 0 ~ 3.3V | 0.001V | |
| Capacity | 0 ~ 9999.9Ah | 0.0001Ah | |
| Electric Quantity | 0 ~ 9999.9Wh | 0.0001Wh | |
| Time | 99 H 59 M 59 S | 1S | |
| Wire Resistance | 0 ~ 999.9Ω | 0.001Ω | |
WARNING: When the monitoring voltage is less than 3.6V, connect the HID port for power supply.
4. Package Contents
The standard package includes the following items:
- ALIENTEK UT70 USB Tester
- USB-Micro USB Cable
- Instructions Manual
- Tin box (for storage)
- Charging Cable (may vary by variant)
- 65W Fast Charger (US) (may vary by variant)
Figure 4.1: Standard Package Contents
5. Product Overview
The ALIENTEK UT70 is a compact and feature-rich USB tester. Familiarize yourself with its interfaces and controls:
Figure 5.1: UT70 Interface Richness and Controls
5.1 Interfaces
- USB-A In: Standard USB-A input for connecting to power sources.
- USB-A Out: Standard USB-A output for connecting to devices under test.
- Type-C In: USB Type-C input for connecting to power sources.
- Type-C Out: USB Type-C output for connecting to devices under test.
- Micro-USB In: Micro-USB input for connecting to power sources.
- Micro-USB HID: Micro-USB port for connecting to a computer for firmware updates and PC software control.
5.2 Controls
- Move Left/Up Key: Navigates menus or increases values.
- Confirm/Return Key: Selects options or confirms actions.
- Move Right/Down Key: Navigates menus or decreases values.
6. Setup and Basic Operation
To begin using your ALIENTEK UT70 USB Tester, follow these simple steps:
- Power On: Connect the UT70 to a USB power source (e.g., charger, power bank, computer USB port) using any of its input ports (USB-A In, Type-C In, or Micro-USB In). The device will power on automatically and display the main measurement interface.
- Connect Device Under Test: Connect the device you wish to test (e.g., smartphone, tablet, power bank) to one of the UT70's output ports (USB-A Out or Type-C Out).
- Basic Measurement: The screen will immediately display real-time voltage, current, power, and other basic parameters.
- Navigation: Use the Left/Up and Right/Down keys to navigate through different display screens and menus. The Confirm/Return key is used to select options or enter sub-menus.
Figure 6.1: Basic Measurement Display
WARNING: When monitoring is enabled, all protocols are applied by the power device to the power supply device. The monitoring protocols are for reference only!
7. Operating Instructions
7.1 Fast Charge Protocol Detection and Triggering
The UT70 can automatically detect and manually trigger various fast charge protocols.
- Automatic Detection: The device will automatically detect the fast charge protocol supported by the power supply and display relevant parameters. This is convenient for quick checks.
- Manual Trigger: You can manually select a specific fast charge protocol and trigger a corresponding voltage to test the performance of the power supply device. Use the navigation keys to select the desired protocol and trigger voltage from the menu.
Figure 7.1: Fast Charge Protocol Detection and Manual Trigger
WARNING: Automatic detection and manual trigger mode may trigger high voltage. Do not access any electrical equipment, otherwise, we will not be responsible for equipment damage!
7.2 Waveform Display
The UT70 can display real-time voltage, current, and D+/D- waveforms, as well as peak-to-peak ripple voltage.
- Real-time Voltage and Current Waveform: Monitor the stability of voltage and current during charging.
- Real-time D+ & D- Waveform: Observe changes in data line voltages, which can indicate protocol negotiation.
- Ripple Measurement: The peak-to-peak value (Vp-p) is displayed with 1kHz high sampling rate when connected to a host computer, allowing evaluation of the power supply voltage ripple quality.
Figure 7.2: Waveform Display Options
7.3 Offline Data Recording
The UT70 supports offline data recording, allowing you to capture measurement data over time without being connected to a computer.
- Recording Capacity: Stores up to 5 groups of data records.
- Programmable Settings: Configure start and stop conditions, as well as the recording duration (8 minutes to 99 hours).
- Battery Capacity Estimation: Recorded data can be used to estimate battery capacity using the formula: Statistics (Wh) ÷ (3.7V) × (0.8-1.0) = Capacity (Ah). Note that 3.7V is the voltage of a single lithium battery, and 0.8-1.0 is the approximate charging efficiency range (80-100%).
Figure 7.3: Offline Data Recording and Battery Capacity Estimation
7.4 Cable Detection
The UT70 can detect information about charging cables, such as E-Marker and Dash cables, to help you understand their performance.
Figure 7.4: Cable Detection Interface
7.5 Linear Resistance Measurement
Use the pressure difference method to measure the internal resistance (line resistance) of your power supply cable.
WARNING: Please bring a current load device above 500mA to assist in measurement.
Figure 7.5: Linear Resistance Measurement Steps
7.6 Power Bank Mode
Some fast charging devices may stop when the load current is low. The Power Bank Mode provides intermittent dummy loads to maintain the external power supply, facilitating continuous detection and use.
Figure 7.6: Power Bank Mode in Use
7.7 Upper Computer (PC Software)
Connect the UT70 to a host computer via the Micro-USB HID interface to unlock advanced functionalities.
- Function Control: Control various settings and functions of the UT70 from your PC.
- Waveform Viewing: View detailed waveform graphs (e.g., voltage, current, power) on a larger screen.
- Protocol Triggering: Perform advanced protocol triggering.
- Data Recording: Acquire 1kHz data, restore real voltage, and view current details.
- Firmware Upgrade: Update the device firmware online.
Figure 7.7: PC Software Interface for Advanced Monitoring
8. Maintenance
- Cleaning: Use a soft, dry cloth to clean the device. Do not use abrasive cleaners or solvents.
- Storage: Store the device in a cool, dry place, away from direct sunlight and extreme temperatures.
- Avoid Impact: Protect the device from drops and impacts, which can damage the screen or internal components.
- Firmware Updates: Regularly check the official ALIENTEK website or PC software for firmware updates to ensure optimal performance and access to new features.
9. Troubleshooting
- Device does not power on:
- Ensure the UT70 is properly connected to a power source with sufficient voltage (DC 3.6 ~ 28V). Try a different USB port or cable.
- No readings displayed:
- Check if both the input and output devices are correctly connected. Ensure the power source is active and the device under test is drawing power.
- Inaccurate readings:
- Ensure all connections are secure. If measuring cable resistance, ensure a load device above 500mA is connected as instructed. Consider calibrating the device if possible (refer to advanced user guides or PC software options).
- Fast charge protocol not detected:
- Verify that both the power source and the device under test support fast charging. Some protocols require specific cables. Try manually triggering the protocol if automatic detection fails.
- PC software not connecting:
- Ensure the UT70 is connected to the PC via the Micro-USB HID port. Check USB drivers on your computer. Restart both the UT70 and the PC software.
10. User Tips
- For precise cable resistance measurements, always use a stable current load of at least 500mA.
- When testing fast charging protocols, be aware that triggering high voltages can potentially damage incompatible equipment. Always ensure the connected device supports the triggered protocol.
- Utilize the offline data recording feature for long-term monitoring of charging cycles or battery discharge, especially for estimating actual battery capacity.
- The PC software offers a much richer visual experience for waveform analysis and data logging. It's highly recommended for in-depth testing and firmware updates.
11. Warranty and Support
ALIENTEK products are manufactured to high-quality standards. For warranty information, technical support, or service inquiries, please refer to the official ALIENTEK website or contact your local distributor. Keep your purchase receipt as proof of purchase.
