UNI-T UDP6721 DC Power Supply

Overview

The UNI-T UDP6721 is a high-performance single-channel DC power supply designed to deliver precise control and stable power output for a variety of applications. It boasts a voltage range of 060V, a current capacity of 08A, and a maximum power output of 180W. The device is equipped with advanced features, including overvoltage, overcurrent, and overtemperature protection, ensuring reliable and safe operation.

Key Features

1. High Precision and Resolution:

   • Voltage Range: 0~60V
   • Current Range: 0~8A
   • Power Output: 180W
   • Resolution: 10mV/1mA
   • The high resolution ensures that you can achieve precise voltage and current settings, making it suitable for sensitive electronic tasks.

2. Memory and Programmability:

   • The power supply is capable of storing up to 600 memory presets, allowing quick access to commonly used settings.
   • The device supports programmable lists and delay functions, which include 48 sets of editable points. This feature is particularly useful for automating various operations, saving time and reducing errors.

3. Display and Interface:

   • The 2.8-inch full-color TFT LCD screen provides clear, real-time readouts of voltage, current, and power, minimizing the need for repeated checks and recordings. This large, bright display is designed to be easy to read even in challenging lighting conditions.
   • The device is equipped with an RS232 serial interface for remote communication and supports SCPI protocol, making it compatible with various automation systems and enabling seamless integration into complex testing setups.

4. Protection Mechanisms:

   • Overvoltage Protection (OVP): This feature safeguards connected devices from being exposed to excessive voltage levels, preventing potential damage.
   • Overcurrent Protection (OCP): It prevents damage to the power supply and connected equipment by limiting the current output to a safe level.
   • Overtemperature Protection: The device includes an automatic shutdown feature in case of overheating, ensuring that the power supply remains safe to use and prolonging its operational life.

5. Adjustable Parameters:

   • The device allows users to adjust voltage, current, and slew rate parameters, providing flexibility for a wide range of applications. These settings can be fine-tuned using the intuitive rotary encoder and keypad interface.
   • The power supply is designed to be user-friendly, with an interface that makes it easy to adjust settings precisely, ensuring that the output matches the requirements of the connected devices.

6. Build and Design:

   • The device is compact, with dimensions of 87 x 174 x 255 mm, and it weighs less than 2.5 kg, making it highly portable and easy to integrate into various setups. Its lightweight design does not compromise its durability, as it is built to withstand regular use in demanding environments.
   • The front panel of the UDP6721 is user-friendly, featuring clear indicators for voltage, current, output mode, and system status. The layout is designed to be intuitive, reducing the learning curve for new users and enhancing efficiency for experienced technicians.
   • The rear panel includes standard interfaces, a cooling fan, and fuse slots, ensuring that the device remains cool and safe during operation. The inclusion of these features demonstrates a focus on both performance and safety, making it a reliable choice for professional use.

Setup and Operation

1. Initial Inspection:

   • Upon receiving the device, it is important to ensure that it is in good condition. If there are any issues, you should contact the UniTrend Instrument Sale Department or your distributor immediately. This step is crucial to ensure that the device operates correctly and safely.
   • Confirm that the AC input voltage of the UDP6721 complies with the standards of your country or region. The device comes with a 110V/220V switch located on the rear panel, which allows you to select the appropriate input voltage. This feature ensures compatibility with different power systems, reducing the risk of damage.

2. Voltage and Current Setup:

   • Setting up the voltage involves pushing the V key to enter the setup mode, using the arrow keys to select the specific numeric field, and then rotating the encoder to adjust the voltage parameter. The precision of these controls allows for fine-tuning the output to meet the exact needs of your application.
   • Similarly, to set the current, press the A key, use the arrow keys to select the desired numeric field, and rotate the encoder to define the current parameter. This process ensures that the current output is accurately matched to the requirements of the device under test.

3. Beeper Switch:

   • To adjust the buzzer mode, press the Menu button to enter the setup interface, then rotate the encoder to select the buzzer mode. The buzzer function, when enabled, produces sounds in response to keyboard inputs, providing audio feedback that can enhance the user experience in noisy environments. When disabled, the keyboard operates silently, which can be preferable in quiet settings.
   • The buzzer status is displayed on the top screen, making it easy to confirm whether the feature is enabled or disabled.

4. Brightness Setup:

   • Adjusting the screen brightness involves pressing the Menu button, selecting the brightness field using the arrow keys, and rotating the encoder to set the desired brightness level, which ranges from 0% to 100%. This flexibility allows you to optimize the display for different lighting conditions, ensuring that the screen is always easy to read.
   • The ability to adjust brightness is particularly useful in environments with variable lighting, such as workshops or laboratories, where clear visibility of the display is essential.

5. Memory Group Setup:

   • The device allows you to store up to 200 groups of settings, which can be accessed through the memory setup interface. This feature is invaluable for users who frequently switch between different setups, as it enables quick recall of stored settings, saving time and reducing the potential for errors.
   • To set a memory group, press the Menu button, select the memory option using the arrow keys, and rotate the encoder to choose the desired memory group. This process is straightforward, allowing you to manage multiple setups with ease.

6. Memory Group Voltage/Current Setup:

   • Specific voltage and current settings can be assigned to memory keys (M1~M3) for quick access. This feature is particularly useful for repetitive tasks, where the same settings are used frequently. The corresponding memory key will light up when the stored setting is activated, providing visual confirmation that the correct setup is in use.
   • This functionality simplifies complex testing procedures, making it easier to maintain consistency across multiple tests or projects.

7. Output Mode Setup:

   • The output status can be controlled by pressing the Menu button and selecting the output status bar using the arrow keys. The system can retain the output status even after the power is turned off, ensuring that your settings are preserved between sessions. This feature is particularly useful in situations where consistent output is critical, such as in automated testing environments.
   • The output status symbol will be shown on the top screen when the output is finished, providing clear feedback on the device’s operational state.

8. Language Setup:

   • The device supports multiple languages, including English and Chinese. You can switch between these languages by pressing the Menu button, selecting the language field using the arrow keys, and rotating the encoder to choose the desired language. This feature makes the device accessible to a wider range of users, improving its versatility in global markets.
   • The ability to select a preferred language ensures that the device is easy to use, regardless of the user’s native language.

9. Display Interface Information:

   • RS232 configuration details and other interface settings can be viewed by navigating to the IO Information option in the setup menu. This information is displayed on the right side of the screen, providing easy access to critical configuration details. Understanding these settings is essential for integrating the power supply into automated systems or complex testing setups.
   • The inclusion of detailed interface information reflects the device’s focus on connectivity and integration, making it a suitable choice for advanced users who need to control the power supply remotely.

10. About Section:

    • Detailed information about the device, including the model number and firmware version, can be accessed through the ‘About’ section in the setup interface. This information is useful for troubleshooting, firmware updates, and ensuring that you have the correct model for your needs.
    • The ‘About’ section provides transparency and allows users to easily verify the device’s specifications and version, ensuring compatibility with specific requirements.

11. Remote Sense Compensation Setup:

    • The Remote Sense Compensation feature allows for precise control of the output voltage at the load terminal, compensating for any voltage drops across the connection leads. This is achieved by connecting the load voltage positive terminal to the compensation terminal S+ and the load voltage negative terminal to the compensation terminal S-. This setup ensures that the voltage applied to the load is accurate, even in the presence of significant cable resistance.
    • The output voltage of the DC power supply is the voltage of the load terminal when the Remote Sense Compensation function is enabled. This feature is crucial for applications requiring high accuracy, as it helps maintain consistent voltage levels at the point of load.
    • It’s important to note that the Remote Sense Compensation voltage should be less than 0.6V to prevent any issues with the power supply’s operation.

Detailed Technical Specifications

Safety and Compliance

• Ensure that the AC input voltage complies with the standards of your country or region before operating the device. The UDP6721 comes with a voltage selector switch (110V/220V) located on the rear panel, allowing you to choose the appropriate voltage for your region. This feature is crucial for preventing damage to the device and ensuring safe operation.
• The device is designed with multiple warning labels and complies with international safety standards, making it safe for use in professional environments. Adhering to these safety standards reduces the risk of accidents and ensures that the device can be used in a variety of settings, including educational institutions, research facilities, and industrial environments.

Applications

The UDP6721 is ideal for use in a wide range of fields, including:

• Research and Development: Precise control over voltage and current is crucial for testing and prototyping new electronic devices. The UDP6721’s high resolution and accuracy make it an excellent choice for these applications.
• Manufacturing: Reliable power supply is essential for production lines and quality control processes. The UDP6721’s robust build and comprehensive features make it suitable for use in demanding industrial environments.
• Educational Labs: An excellent tool for teaching and experimenting with electronics and electrical engineering. The device’s user-friendly interface and comprehensive feature set make it accessible to students while providing the precision needed for advanced experiments.
• Service and Repair: Suitable for bench testing and repairing electronic equipment. The UDP6721’s flexibility and precision allow technicians to diagnose and repair a wide range of devices, from consumer electronics to industrial equipment.

Conclusion

The UNI-T UDP6721 DC power supply is a versatile, reliable, and precise instrument suitable for various professional and educational settings. Its comprehensive features, robust protection mechanisms, and user-friendly interface make it an excellent choice for those requiring dependable power delivery for their electronic projects and testing needs.

This full description includes every detail provided, ensuring a thorough understanding of the UNI-T UDP6721 power supply. It covers the device’s features, technical specifications, applications, and detailed setup procedures, making it an invaluable resource for potential users.