1. Safety Summary
Welcome to your NANKADF DC stabilized power supply. This manual contains important safety instructions that must be followed for the operation of the product and its storage environment. For your personal safety, it is crucial to read this manual thoroughly prior to operation to avoid injury or damage to the power supply and other connected loads due to improper operation.
Safety Symbols
The following safety symbols may appear in this manual or on the machine:
- ⚠️ Warning: Indicates potential hazards that could result in injury or damage.
- ⚡ High Voltage Hazard: Indicates the presence of dangerous voltage levels.
- ⏚ Grounding Wire: Indicates a grounding terminal or connection.
- CE Accreditation: Product conforms to European safety standards.
- 🗑️ Do Not Litter: Dispose of the product responsibly.
- 🏠 Indoor Use: Product is intended for indoor use only.
2. Product Overview
The NANKADF DC Power Supply is a compact, lightweight, and high-power density laboratory power supply featuring constant voltage (C-V) and constant current (CC) automatic switching. It offers high precision, voltage stabilization, and current limiting functions, with an easy-to-operate interface.
Front Panel Functional Description
| No. | Component | Function |
|---|---|---|
| 1 | Voltage output display | Shows the current output voltage. |
| 2 | Type-C fast charging | USB Type-C fast charging port. |
| 3 | Current output display | Shows the current output amperage. |
| 4 | USB-A fast charging | USB Type-A fast charging port. |
| 5 | Power display | Shows the current output power in Watts. |
| 6 | CV indicator | Lights up when in Constant Voltage mode. |
| 7 | CC indicator | Lights up when in Constant Current mode. |
| 8 | Output indicator | Indicates when output is active. |
| 9 | OCP indicator | Lights up when Over-Current Protection is active. |
| 10 | Output switch | Toggles power supply output on/off. |
| 11 | V/A Toggle Adjustment Key | Switches between voltage and current adjustment modes. |
| 12 | OCP switch | Enables/disables Over-Current Protection. |
| 13 | Voltage/current setting knob | Adjusts voltage/current. Long press to turn beeper off/on. |
| 14 | Power switch | Turns the main power of the unit on/off. |
| 15 | Positive polarity (Red) | Positive output terminal. |
| 16 | Grounding terminal (Green) | Grounding terminal for safety. |
| 17 | Negative polarity (Black) | Negative output terminal. |
Rear Panel Components (TPS / TPS-C Series)
| No. | Component | Function |
|---|---|---|
| 18 | Cooling Fan | Dissipates heat from the unit. |
| 19 | Electric socket | Connects to AC power source. |
| 20 | Fuse box | Houses the protective fuse. |
| 21 | AC Selector Switch | Selects between 115V and 230V AC input. |
3. Setup Instructions
3.1 AC Input Selection
Before connecting the power supply, determine the permissible AC voltage input for the machine. This unit supports two types of AC voltage input: AC 230V±10% or AC 115V±10%. This is selected using the changeover switch on the rear panel.
- If "230V" is visible on the switch, the allowable input voltage is AC 230V±10%.
- If "115V" is visible on the switch, the allowable input voltage is AC 115V±10%.
⚠️ Warning: Incorrect AC voltage input can cause serious damage to the machine. Always verify the required input voltage value.
3.2 Grounding
Ensure the power cord is properly grounded when using this product. If your power outlet does not have a ground wire, use a separate wire to connect the machine's grounding terminal (green) to an earth ground. Proper grounding effectively prevents electrical leakage and reduces output ripple interference.
Good grounding prevents leakage and reduces output ripple.
3.3 Product Contents
The package typically includes:
- 1x DC power supply unit
- 1x Power cord (appropriate for your region)
- 1x Test lead (output cables)
- 1x Instruction manual
4. Operating Instructions
4.1 Constant Voltage (CV) / Constant Current (CC) Mode
The power supply operates in two primary modes: Constant Voltage (CV) and Constant Current (CC). The active mode is determined by the voltage and current values set by the user and the load connected. The output voltage or current will not exceed the set values.
- In CV mode, the output voltage equals the user-set voltage.
- In CC mode, the output current equals the user-set current.
⚠️ Notice: In actual CV operation, if the load resistance decreases, causing the output current to increase to the set current value, the power supply will automatically switch to CC mode. If the load resistance continues to decrease, the current will remain at the set value, and the voltage will decrease proportionally (I=V/R). To restore CV output, increase the load resistance or increase the current setting value.
4.2 Voltage/Current Regulation
- Press the V/A toggle adjustment key (11) to switch between current and voltage setting. The voltage display LED will flash. Turn the voltage/current setting knob (13) to adjust to the desired voltage value.
- Press the V/A toggle adjustment key (11) again. The current display LED will flash. Turn the voltage/current setting knob (13) to adjust to the desired current value.
- When adjusting voltage/current, press the knob (13) to jump over character positions for easier numerical adjustment.
4.3 Beeper Tone On/Off
Long press the voltage/current setting knob (13) to turn the beeper tone on or off.
4.4 OUT Output Switch
Pressing the OUT output switch (10) toggles the power supply output on or off.
4.5 OCP Short-Circuit Protection Switch
Press the OCP switch (12) to enable/disable the OCP short-circuit protection function. When enabled, the OCP indicator (9) will light up. If the load is short-circuited or over-current, the machine will stop output and an alarm will sound. The alarm can be cleared by pressing the OUT output switch (10) to turn off the output state.
The machine determines if the output is short-circuited based on whether the output current exceeds the user-set current. Therefore, the OCP short-circuit protection cannot be used in constant current (CC) mode.
4.6 Fast Charging Function
This machine features USB-A and Type-C fast charging ports (2, 4) with a built-in multi-protocol fast charging recognition chip, providing up to 18W output power. The screen can display the current output voltage and current values for these ports.
5. Specifications
5.1 General Specifications
- Type: Laboratory Power Supply
- Model: DPS Series, TPS Series, TPS-C Series
- Material: Metal Plastic
- Color: Black/Blue
- Input Power: AC 230V/115V±10%; 50Hz/60Hz
- Working Temperature: 0℃~40℃; Relative Humidity: <80%RH
- Storage Temperature: -10℃~70℃; Relative Humidity: <70%RH
- Mode: Constant Voltage (C-V), Constant Current (CC)
- Recovery Time: ≤500μs
- Temperature Coefficient: ≤100ppm/°C
- Display Accuracy: 0.5%±3 words
- Display Resolution: Voltage 0.01V, Current 0.001A
- Certifications: FCC and CE certified
5.2 Performance Specifications
| Model | Output Voltage | Output Current | Output Power | Fuse Spec. |
|---|---|---|---|---|
| TPS305 | 0~30V | 0~5A | 150W | 3A |
| TPS3010 | 0~30V | 0~10A | 300W | 5A |
| TPS605 | 0~60V | 0~5A | 300W | 5A |
| TPS1203 | 0~120V | 0~3A | 360W | 5A |
| TPS1602 | 0~160V | 0~2A | 320W | 5A |
| Model | Output Voltage | Output Current | Output Power | Fuse Spec. |
|---|---|---|---|---|
| TPS-C305 | 0~30V | 0~5A | 150W | 3A |
| TPS-C3010 | 0~30V | 0~10A | 300W | 5A |
| TPS-C605 | 0~60V | 0~5A | 300W | 5A |
| TPS-C1203 | 0~120V | 0~3A | 360W | 5A |
| TPS-C1602 | 0~160V | 0~2A | 320W | 5A |
5.3 Physical Dimensions & Weight
- Product Size: L210mm x W145mm x H80mm (from OCR) / 190mm (depth) x 90mm (width) x 145mm (height) (from image)
- Power Supply Weight: Approximately 1.15 kg (2.54 lbs)
- Package Weight: Approximately 1.5 kg (1600 g)
- Package Size: 27cm x 14cm x 20cm
6. Product Maintenance
Regular inspection, cleaning, and maintenance will help extend the life of your NANKADF DC Power Supply. Follow these steps to maintain your machine:
6.1 Regular Inspection and Cleaning
- Turn off the power switch and unplug the power cord from the outlet.
- Lightly wipe the case, top cover, and vents with a soft cloth and mild detergent.
- Visually inspect all power cords and terminals for signs of collision, looseness, heat erosion, moisture, or insect bites. If any are damaged, replace them with power cords or terminals of the same size in a timely manner.
6.2 Fuse Replacement
If the fuse blows, the machine will stop working. Identify the cause of the blown fuse and replace it with a fuse of the same size and rating.
7. Troubleshooting
This section provides general troubleshooting tips for common issues. For more detailed diagnostics, please refer to the official PDF manual.
| Problem | Possible Cause | Solution |
|---|---|---|
| No power / Unit does not turn on | Power cord not connected, AC input switch incorrect, blown fuse. | Check power cord connection. Verify AC selector switch (21) is set correctly (115V/230V). Check and replace fuse (20) if necessary. |
| No output voltage/current | Output switch (10) is off, OCP activated, load issue. | Press the OUT switch (10) to turn on output. Check OCP indicator (9); if lit, clear the fault and reset. Verify load connection and integrity. |
| Voltage/Current cannot be adjusted | Knob not engaged, keypad lock active (TPS-C series). | Ensure you are pressing the V/A toggle adjustment key (11) to select the parameter to adjust. For TPS-C models, check if the keypad lock is active and disable it. |
| OCP alarm sounds frequently | Load short-circuit or over-current, OCP sensitivity too high. | Check the load for short circuits or excessive current draw. Adjust the current limit setting to a higher value if appropriate for the load. |
| Unit overheating | Blocked cooling fan (18), excessive load. | Ensure cooling fan (18) is not obstructed and vents are clear. Reduce the load if it exceeds the unit's rated capacity. |
8. Warranty and Support
8.1 Product Inspection and Warranty
All products are issued with instruction manuals and inspection certificates to ensure correct usage. Our products are manufactured and inspected according to manufacturer standards, and unqualified products are not released from the factory.
A twelve-month warranty is provided for non-artificial damage.
8.2 Maintenance Services
During the warranty period, free repair or replacement parts are provided. Beyond the warranty period, chargeable repair services are available.
If this product malfunctions during its maintenance period, we are only responsible for the malfunction and loss of this product, and not for the load or any other consequential damages.
8.3 Guarantee Limitations
The above warranty does not apply to damage caused by:
- Customer violating the terms of use of this manual.
- Customer disassembling or repairing products on their own.
- Unauthorized modification or misuse.
- Operating the product outside the specified environment.
- Irresistible factors of relevant laws.
8.4 Additional Resources
For further detailed information, including comprehensive diagrams and technical specifications, please refer to the official user manual PDF:
9. User Tips
No specific user tips are available from provided reviews or Q&A content.