1. Introduction
This manual provides essential information for the safe and efficient operation of your KUAIQU SPS-C3206 DC Regulated Power Supply. Please read this manual thoroughly before using the device and keep it for future reference.
The SPS-C3206 is a high-precision, adjustable DC power supply designed for various applications requiring stable and controllable voltage and current outputs. It features a clear digital display for voltage, current, and power, along with coarse and fine adjustment knobs for precise control.
2. Safety Instructions
WARNING: Failure to follow these safety instructions may result in electric shock, fire, or personal injury.
- Ensure the power supply is connected to a properly grounded outlet.
- Do not operate the device in wet or damp conditions.
- Do not open the casing of the power supply. There are no user-serviceable parts inside.
- Ensure adequate ventilation around the unit to prevent overheating.
- Do not exceed the maximum voltage and current ratings of the device or the connected load.
- Always turn off the output and disconnect the load before making any changes to wiring.
- Keep children and unauthorized personnel away from the device during operation.
3. Product Overview and Features
The KUAIQU SPS-C3206 DC Regulated Power Supply is equipped with a user-friendly interface and robust features for reliable performance.
3.1 Front Panel Layout
Figure 1: Front Panel Diagram with Labeled Controls
- Voltage Display: Shows the output voltage in Volts (V).
- Current Display: Shows the output current in Amperes (A).
- Power Display: Shows the output power in Watts (W).
- C.V Indicator: Illuminates when the power supply is operating in Constant Voltage mode.
- C.C Indicator: Illuminates when the power supply is operating in Constant Current mode.
- POWER Button: Main power switch for the unit.
- USB Interface (5V/2A): Provides a stable 5V, 2A output for charging or powering USB devices.
- ON/OFF Switch: Controls the output of the main terminals.
- Output Negative (-): Negative output terminal (black).
- GND Terminal: Ground terminal (green).
- Output Positive (+): Positive output terminal (red).
- V-COARSE Knob: Coarse adjustment for output voltage.
- V-FINE Knob: Fine adjustment for output voltage.
- A-COARSE Knob: Coarse adjustment for output current.
- A-FINE Knob: Fine adjustment for output current.
3.2 Key Features
- Large 100x60mm 4-digit LED display for Voltage, Current, and Power.
- High precision output: 0.01V for voltage, 0.001A for current.
- Intelligent cooling fan: Activates automatically when internal temperature exceeds 50°C (122°F) to ensure stable operation.
- Built-in fuse box for voltage overload protection.
- Compact and durable design.
Figure 2: Intelligent Cooling Fan and Fuse Box
4. Setup Instructions
4.1 Unpacking and Inspection
Carefully remove the power supply and all accessories from the packaging. Inspect the unit for any signs of damage during transit. If any damage is found, do not operate the unit and contact customer support.
Figure 3: Package Contents (Power Supply, Manual, Cables)
4.2 Power Connection
- Ensure the power supply's input voltage matches your local mains supply (110V or 220V). The specific model purchased will indicate the compatible input voltage.
- Connect the provided power cord to the AC input socket on the rear of the power supply and then to a grounded wall outlet.
4.3 Connecting the Load
- Before connecting any load, ensure the power supply's output is OFF (the ON/OFF button LED should be off).
- Connect the positive (+) terminal of your load to the red output terminal (+) on the power supply.
- Connect the negative (-) terminal of your load to the black output terminal (-) on the power supply.
- If grounding is required for your application, connect the green GND terminal to the ground of your circuit.
5. Operating Instructions
5.1 Initial Power On
- Ensure all connections are secure and the output ON/OFF switch is in the OFF position.
- Press the main POWER button on the front panel. The digital displays will illuminate.
5.2 Setting Voltage and Current
- Pre-setting (Output OFF): It is recommended to set the desired voltage and current limits with the output OFF.
- Use the V-COARSE and V-FINE knobs to adjust the output voltage. The voltage display will show the set value.
- Use the A-COARSE and A-FINE knobs to adjust the output current limit. The current display will show the set value.
- Enabling Output: Once voltage and current limits are set, press the ON/OFF button to enable the output. The ON/OFF button LED will illuminate, and power will be supplied to your load.
Figure 4: Output ON/OFF Operation
5.3 Constant Voltage (C.V) and Constant Current (C.C) Modes
- Constant Voltage (C.V) Mode: When the C.V indicator is lit, the power supply is maintaining a constant output voltage as set by the voltage knobs. The output current will vary depending on the load.
- Constant Current (C.C) Mode: When the C.C indicator is lit, the power supply is maintaining a constant output current as set by the current knobs. This occurs when the load resistance is low enough to draw the set current at a voltage lower than the set voltage. The output voltage will vary depending on the load.
5.4 Using the USB Output
The 5V/2A USB port can be used to charge compatible devices or power small USB-powered electronics. Simply connect your USB device to the port. This output is independent of the main DC output ON/OFF switch.
6. Maintenance
- Cleaning: Disconnect the power supply from the mains before cleaning. Use a soft, dry cloth to wipe the exterior. Do not use abrasive cleaners or solvents.
- Ventilation: Ensure that the ventilation openings on the sides and rear of the unit are not obstructed. Proper airflow is crucial for preventing overheating and maintaining device longevity.
- Fuse Replacement: If the unit fails to power on, check the fuse located in the fuse box at the rear of the unit. Replace with a fuse of the correct rating (3.15A for 220V input, 5A for 110V input).
- Storage: When not in use for extended periods, store the power supply in a cool, dry, and dust-free environment.
7. Troubleshooting
| Problem | Possible Cause | Solution |
|---|---|---|
| Unit does not power on. | No power from outlet; Power cord loose; Blown fuse. | Check wall outlet with another device; Ensure power cord is securely connected; Replace fuse with correct rating. |
| No output voltage/current. | Output ON/OFF switch is OFF; Incorrect wiring; Load is open circuit (for current). | Press the ON/OFF button to enable output; Verify load connections; Ensure load is properly connected. |
| Output voltage/current is unstable. | Poor load connection; Overload condition; Internal fault. | Check and secure all connections; Reduce load or adjust current limit; Contact support if problem persists. |
| Cooling fan is not running. | Normal operation (temperature below 50°C). | The fan activates only when the internal temperature exceeds 50°C (122°F). This is normal. |
8. Specifications
| Parameter | Value (SPS-C3206) |
|---|---|
| Output Voltage | 0-32V |
| Output Current | 0-6A |
| Input Voltage | 230V±10% 50Hz (Optional 115V±10% 60Hz) |
| Operating Temperature | 0°C - 40°C |
| Operating Humidity | <80% RH |
| Storage Temperature | -10°C - 70°C |
| Storage Humidity | <70% RH |
| Constant Voltage Load Stability | ≤1%±3mV |
| Constant Voltage Ripple Noise | ≤50mVrms (Average effective value) |
| Constant Current Load Stability | ≤1%±3mA |
| Constant Current Ripple Noise | ≤50mArms |
| Display Accuracy (Voltage) | 0.01V |
| Display Accuracy (Current) | 0.001A |
| Product Size (L x W x H) | 24cm x 8.5cm x 15.5cm (9.4in x 3.3in x 6.1in) |
| Net Weight | Approx. 1.2kg (2.65 lbs) |
| Package Weight | Approx. 2.0kg (4.41 lbs) |
| Fuse Specification | 3.15A (220V input) / 5A (110V input) |
Note: Parameters are measured at an ambient temperature of 25°C ± 5°C, relative humidity <80% RH. Actual parameters may vary slightly.
Figure 5: SPS-C Series Specifications Table
Figure 6: Product Dimensions and Weight
9. User Tips
- For precise adjustments, always use the fine adjustment knobs (V-FINE, A-FINE) after setting the approximate value with the coarse knobs.
- When working with sensitive electronics, it's good practice to set the current limit slightly above the expected operating current to protect the device under test from overcurrent.
- The USB output is convenient for powering small accessories or charging phones directly from the power supply, even when the main DC output is off.
10. Warranty and Support
For any questions, technical assistance, or support regarding your KUAIQU SPS-C3206 DC Regulated Power Supply, please contact the seller or manufacturer directly.
You can reach out via:
- Email: k923336976@163.com
- WhatsApp: +8615802678096
Please have your product model number (SPS-C3206) ready when contacting support.
11. Manufacturing Process (Video)
This video provides insight into the manufacturing and quality control processes involved in producing KUAIQU DC power supplies, including design, assembly, and testing.
Video: KUAIQU DC Power Supply Manufacturing Process