HANGELL DC Variable Bench Power Supply 30V 10A Instruction Manual

1. Introduction

This instruction manual provides detailed information on the safe and efficient operation, setup, and maintenance of your HANGELL DC Variable Bench Power Supply (Model HPS3010). Please read this manual thoroughly before using the device to ensure proper functionality and to prevent damage or injury.

2. Safety Instructions

Always observe the following safety precautions to prevent electric shock, fire, or damage to the device and connected equipment:

• Ensure the power supply is connected to a properly grounded outlet.
• Do not operate the device in wet or damp conditions.
• Avoid short-circuiting the output terminals. The device features short-circuit protection, but prolonged short circuits can cause damage.
• Do not open the casing of the power supply. There are no user-serviceable parts inside. Refer all servicing to qualified personnel.
• Ensure adequate ventilation around the unit to prevent overheating. Do not block the cooling fan or vents.
• Verify the input voltage switch (115V/230V) on the rear panel is set correctly for your local power supply before connecting the power cord.
• Disconnect the power cord from the mains before performing any maintenance or when the unit is not in use.

Figure 2.1: Multiple Safety Protections. This image illustrates the various safety features integrated into the HANGELL power supply, including protection against over-temperature, over-voltage, over-current, short circuits, and overload conditions.

3. Product Overview and Features

The HANGELL HPS3010 is a DC variable bench power supply designed for precision and stability. It features encoder knob adjustments, an output switch, short-circuit alarm, and fast charging interfaces.

3.1 Front Panel Layout

Figure 3.1: Front Panel of HANGELL HPS3010 DC Power Supply. This image highlights the digital display for voltage, current, and power, along with the coarse and fine adjustment encoder knobs for voltage and current. Also visible are the OCP (Over Current Protection) and Output control buttons, USB-A and USB-C fast charging ports, and the main output terminals (GND, positive, negative).

• Digital Display: High-precision 4-digit LED display shows voltage (V), current (A), and power (W) readings.
• Encoder Knobs: Separate coarse and fine adjustment knobs for precise control of output voltage and current. Pressing a knob allows switching between digits for adjustment.
• Output Switch Button: Enables or disables the power output to the terminals. An indicator light shows the output status.
• OCP/OVP Buttons: Buttons for configuring Over Current Protection and Over Voltage Protection settings.
• USB-A & USB-C Ports: 5V 3.6A USB and Type-C quick-charge interfaces for charging electronic devices.
• Output Terminals: Standard banana plug terminals for connecting loads.

3.2 Rear Panel Layout

Figure 3.2: Rear Panel of HANGELL HPS3010 DC Power Supply. This image shows the power input socket, the cooling fan for heat dissipation, and a red toggle switch for selecting the input voltage (115V or 230V).

• Power Input: Standard AC power inlet for connecting the provided power cord.
• Cooling Fan: Automatically activates to dissipate heat and maintain optimal operating temperature.
• Input Voltage Toggle Switch: Allows selection between 115V and 230V input voltage. Ensure this is set correctly for your region.

3.3 Key Features

• Precise Encoder Knobs: Offers high precision and stability for voltage and current adjustments, with coarse and fine tuning capabilities.
• Output Switch Button: Provides convenient control to enable or disable output, preventing accidental damage to connected loads.
• Short Circuit Alarm: Activates a buzzer and stops output if a short circuit is detected when OCP is enabled, protecting both the power supply and the load.
• High-Precision 4-Digit LED Display: Provides accurate readings of voltage (0.01V resolution) and current (0.001A resolution).
• Constant Voltage (C.V) / Constant Current (C.C) Mode: Automatically switches modes based on load conditions.
• Multiple Safety Protections: Includes overvoltage, overcurrent, overtemperature, and overload protection.

Figure 3.3.1: Accurate Power Output. This image demonstrates the high precision of the HANGELL power supply's 4-digit LED display, showing accurate voltage, current, and power readings, which are consistent with an external digital multimeter.

4. Setup

4.1 Unpacking

Carefully remove the power supply and all accessories from the packaging. Verify that all components listed in the package contents are present:

• 1 x HANGELL DC Variable Bench Power Supply (HPS3010)
• 1 x Input Power Cord
• 1 x Output Power Cord (with banana plugs and alligator clips)
• 1 x User Manual

4.2 Power Connection

1. Locate the input voltage toggle switch on the rear panel of the power supply.
2. Ensure the switch is set to the correct voltage for your region (115V or 230V). Incorrect setting can damage the unit.
3. Connect the provided input power cord to the power input socket on the rear panel.
4. Plug the other end of the power cord into a grounded AC power outlet.

4.3 Output Connection

Connect your load to the output terminals on the front panel using the provided output power cord. Ensure correct polarity: red for positive (+), black for negative (-), and green for ground (GND).

5. Operating Instructions

5.1 Power On/Off

1. Press the "POWER" button on the front panel to turn on the power supply. The display will illuminate.
2. To turn off the power supply, press the "POWER" button again.

5.2 Voltage and Current Adjustment

The HPS3010 uses encoder knobs for precise adjustment:

• Coarse Adjustment: Use the "V-COARSE" knob for large voltage changes and "A-COARSE" for large current changes.
• Fine Adjustment: Use the "V-FINE" knob for small voltage changes and "A-FINE" for small current changes.
• Digit Selection: Press any encoder knob to select the digit you wish to adjust. Rotate the knob to change the value of the selected digit.

Video 5.2.1: Demonstration of encoder knob adjustments for voltage and current on a similar DC power supply. This video illustrates how to use the coarse and fine adjustment knobs to set precise voltage and current values, including selecting specific digits for fine-tuning.

5.3 Output Control

Before connecting a load, set the desired voltage and current. Then, press the "OUTPUT" button to enable the power output. The output indicator on the display will light up. Press "OUTPUT" again to disable the output.

5.4 Over Current Protection (OCP)

The OCP function protects the load and power supply from excessive current. When OCP is activated and the output current exceeds the set limit, the power supply will automatically stop outputting and sound a buzzer.

1. Press the "OCP" button to enter the OCP setting interface.
2. Use the encoder knobs to set the desired maximum current limit.
3. Press the "OCP" button again to exit the setting and activate OCP. The OCP indicator will light up.
4. If a short circuit or overcurrent occurs, the OCP indicator will flash, and the output will be cut off.

Refer to Video 5.2.1 for a visual demonstration of OCP setting and activation.

5.5 Over Voltage Protection (OVP)

The OVP function protects the load and power supply from excessive voltage. When OVP is activated and the output voltage exceeds the set limit, the power supply will automatically stop outputting.

1. Press the "OVP" button to enter the OVP setting interface.
2. Use the encoder knobs to set the desired maximum voltage limit.
3. Press the "OVP" button again to exit the setting and activate OVP. The OVP indicator will light up.
4. If the output voltage exceeds the set limit, the OVP indicator will flash, and the output will be cut off.

Refer to Video 5.2.1 for a visual demonstration of OVP setting and activation.

5.6 USB and Type-C Fast Charging

The HPS3010 includes dedicated USB-A and USB-C ports for fast charging compatible electronic devices. These ports provide 5V 3.6A output.

Figure 5.6.1: USB and Type-C Fast Charging. This image shows the HANGELL power supply providing fast charging to a smartphone and a laptop simultaneously through its integrated USB-A and USB-C ports.

Refer to Video 5.2.1 for a visual demonstration of USB charging.

5.7 Display Modes

The HPS3010 features a clear digital display for voltage, current, and power. Specific models may offer additional display modes (e.g., waveform display) which can be toggled via dedicated buttons if available.

5.8 Memory Function

The device supports storing and recalling frequently used voltage and current settings. This allows for quick setup of common configurations.

1. To save a setting: Adjust the desired voltage and current. Long press one of the memory buttons (e.g., M1, M2, M3) until the display confirms the save.
2. To recall a setting: Short press the corresponding memory button (e.g., M1, M2, M3) to load the saved voltage and current values.

6. Maintenance

• Cleaning: Use a soft, dry cloth to clean the exterior of the power supply. Do not use abrasive cleaners or solvents.
• Ventilation: Regularly check that the cooling fan and ventilation openings are free from dust and obstructions.
• Storage: Store the device in a cool, dry place away from direct sunlight and extreme temperatures when not in use.
• Cable Inspection: Periodically inspect the power cord and output cables for any signs of damage. Replace damaged cables immediately.

7. Troubleshooting

8. Specifications

9. Warranty and Support

HANGELL provides lifelong technical support for this product. If you encounter any issues or have questions regarding the operation, maintenance, or troubleshooting of your HPS3010 DC Variable Bench Power Supply, please contact HANGELL customer support for assistance.