Jesverty SPS-3010 DC Power Supply Instruction Manual

1. Introduction

Thank you for choosing the Jesverty SPS-3010 DC Power Supply. This adjustable switching DC regulated bench power supply is designed for high precision applications, offering a variable output of 0-30V and 0-10A. It features a 4-digit LED display for accurate readings of voltage, current, and power, along with a 5V/2A USB port for convenience. This manual provides essential information for the safe and effective operation of your device.

Figure 1: Front view of the Jesverty SPS-3010 DC Power Supply.

2. Safety Precautions

To ensure safe operation and extend the lifespan of your power supply, please observe the following safety guidelines:

• Always connect the grounding terminal to a proper earth ground before operation.
• Do not operate the power supply in wet or damp conditions.
• Ensure adequate ventilation around the unit. Do not block the cooling fan or vents.
• Verify the input voltage matches your local power supply specifications before plugging in the unit.
• Avoid short-circuiting the output terminals for extended periods, as this can damage the unit.
• Disconnect power before performing any maintenance or adjustments.
• Use test leads with sufficient current capacity for your projects, especially for high current applications.

Figure 2: The power supply incorporates multiple protection functions including short circuit, leakage, thermal, over voltage, and overload protection to ensure safety and durability.

3. Product Overview

Familiarize yourself with the various components and controls of your Jesverty SPS-3010 DC Power Supply:

Figure 3: Detailed view of the power supply's front and rear panels with labeled components.

1. Voltage Display: Shows the output voltage in Volts (V).
2. Current Display: Shows the output current in Amperes (A).
3. Power Display: Shows the calculated output power in Watts (W).
4. C.V. Mode Indicator: Illuminates when the unit is operating in Constant Voltage mode.
5. C.C. Mode Indicator: Illuminates when the unit is operating in Constant Current mode.
6. Voltage Knob (Coarse): For large adjustments of the output voltage.
7. Current Knob (Coarse): For large adjustments of the output current.
8. Voltage Knob (Fine): For precise, small adjustments of the output voltage.
9. Current Knob (Fine): For precise, small adjustments of the output current.
10. USB Charging Port (5V/2A): Provides a stable 5V, 2A output for charging USB-powered devices.
11. Output Terminal + (Red): Positive output terminal.
12. Grounding Terminal (Green): Earth ground connection.
13. Output Terminal - (Black): Negative output terminal.
14. Power Switch: Turns the unit on/off.
15. Cooling Fan: Dissipates heat during operation.
16. AC Power Inlet: Connects to the main power supply.
17. Fuse Box: Contains the main fuse (spare fuse inside).

4. Setup

Follow these steps to set up your DC power supply:

1. Unpacking: Carefully remove the power supply and all accessories from the packaging. Verify all items listed in the product description are present.
2. Placement: Place the unit on a stable, level surface with adequate space for ventilation, especially around the cooling fan at the rear.
3. Grounding: Connect the green grounding terminal (12) to a reliable earth ground using an appropriate wire. This is crucial for safety.
4. Power Connection: Connect the provided power cord to the AC Power Inlet (16) on the rear of the unit, then plug it into a suitable wall outlet.
5. Output Connections: Connect your load to the output terminals: positive to the red terminal (11) and negative to the black terminal (13). Ensure connections are secure.

5. Operating Instructions

5.1. Powering On and Initial Settings

1. Ensure all connections are correct and secure.
2. Turn the Voltage (6, 8) and Current (7, 9) adjustment knobs counter-clockwise to their minimum settings (0V, 0A).
3. Press the Power Switch (14) to turn on the unit. The LED display will illuminate.

5.2. Setting Voltage and Current

The SPS-3010 allows continuous adjustment of voltage and current using coarse and fine potentiometers:

Figure 4: Adjusting voltage and current using coarse and fine adjustment knobs.

• Voltage Adjustment: Use the V-COARSE (6) knob for large changes and the V-FINE (8) knob for precise adjustments.
• Current Adjustment: Use the A-COARSE (7) knob for large changes and the A-FINE (9) knob for precise adjustments.
• Pre-setting Current (without load): To set the current limit before connecting a load, temporarily short the output terminals (red and black) with a suitable wire. Adjust the current knobs to the desired limit. Remove the shorting wire before connecting your actual load.

5.3. Auto C.V. (Constant Voltage) and C.C. (Constant Current) Mode

The Jesverty SPS series automatically switches between Constant Voltage (C.V.) and Constant Current (C.C.) modes based on the load conditions:

Figure 5: The power supply automatically transitions between CV and CC modes.

• C.V. Mode: When the load resistance is high, the output voltage remains constant at the set value, and the current varies according to the load. The C.V. indicator (4) will be lit.
• C.C. Mode: When the load resistance is low (or a short circuit occurs), the output current remains constant at the set limit, and the voltage drops. The C.C. indicator (5) will be lit.
• The V and A settings you establish define the crossover point at which the mode switches.

5.4. USB Charging Function

The integrated 5V/2A USB port (10) allows you to charge compatible devices directly from the power supply:

Figure 6: The 5V/2A USB port provides convenient charging for various devices.

• Simply connect your USB device to the USB port (10) on the front panel.
• This port provides a fixed 5V output at up to 2A, independent of the main DC output settings.

5.5. Automatic Power Calculation

The power supply automatically calculates and displays the output power (W) based on the real-time voltage and current readings:

Figure 7: The 4-digit LED display provides real-time readings of V, A, and W.

• The power display (3) updates continuously, providing immediate feedback on the power consumption of your connected load.
• The display resolution is up to 0.01V, 0.001A, and 0.1W.

5.6. Product Application Examples

Figure 8: The Jesverty SPS-3010 is suitable for a wide range of applications including electronic experiments, device repairing, DIY projects, and educational settings.

5.7. Official Product Videos

For a visual guide on the operation and features of the Jesverty SPS-3010 DC Power Supply, please refer to the official videos below:

6. Maintenance

Proper maintenance ensures the longevity and reliable performance of your power supply:

• Cleaning: Regularly clean the exterior of the unit with a soft, dry cloth. Do not use abrasive cleaners or solvents.
• Ventilation: Keep the ventilation openings and cooling fan free from dust and obstructions. Use compressed air to clear dust if necessary.
• Storage: When not in use for extended periods, store the power supply in a cool, dry place, away from direct sunlight and extreme temperatures.
• Fuse Replacement: If the unit fails to power on, check the fuse located in the fuse box (17) at the rear. Replace it with a fuse of the same type and rating if blown. A spare fuse is typically located inside the fuse box.

7. Troubleshooting

If you encounter issues with your power supply, refer to the table below for common problems and solutions:

If the problem persists after attempting these solutions, please contact Jesverty Customer Service for further assistance.

8. Specifications

Detailed technical specifications for the Jesverty SPS-3010 DC Power Supply:

9. Warranty and Support

Jesverty is committed to providing high-quality products and excellent customer service. Your SPS-3010 DC Power Supply comes with professional technical support.

Should you have any problems or questions regarding your unit, please do not hesitate to contact Jesverty Customer Service. Contact information is typically included in the product packaging or can be found via the platform where the product was purchased.

For optimal performance and safety, always refer to this manual and adhere to all operating instructions and safety precautions.