1. Produk Lebihview
The SPS-W3010 is a high-precision, adjustable DC power supply featuring a 4-digit display for accurate readings of voltage, current, and power. It is equipped with a 5V/2A USB output for convenient charging of external devices. This power supply is suitable for a wide range of applications including electronic repair, laboratory experiments, and production testing.
Ciri-ciri Utama:
- Adjustable Output: 0-30V Voltage, 0-10A Current
- High Precision: 4-digit display for voltage, semasa, dan kuasa
- USB Output: Integrated 5V/2A USB port
- Multiple Options: Available in white or black, with 110V or 220V input voltage.
Komponen Produk:

Rajah 1: Depan view of the white SPS-W3010 DC Power Supply, showing the digital display for voltage, current, and power, along with adjustment knobs and output terminals.

Figure 2: Detailed front panel of the SPS-W3010 DC Power Supply, highlighting the "COARSE" and "FINE" adjustment knobs for Voltage (V) and Current (A), the 5V/2A USB output, power button, and output terminals (GND, -, +).

Figure 3: Rear panel of the SPS-W3010 DC Power Supply, showing the cooling fan, power input socket, and fuse holder.
Proses Pengilangan:
Video 1: Tayangan videoasing the manufacturing process of the DC power supply, including PCB design, automated assembly, manual assembly, testing, and packaging.
2. Specifications (SPS-W3010)
| Ciri | Spesifikasi |
|---|---|
| Keluaran Voltage | 0~30V |
| Arus Keluaran | 0~10A |
| Input Voltage | 230V±10% 50Hz (optional 115V±10% 60Hz) |
| Suhu Operasi | 0℃~40℃; Relative Humidity: <80% RH |
| Suhu Penyimpanan | -10℃~70℃; Relative Humidity: <70% RH |
| Pemalar Voltage Negeri | Voltage stability ≤1%+3mV Load stability ≤1%+3mV Ripple noise: ≤50mVrms (effective value) |
| Keadaan Semasa Malar | Current stability ≤1%+3mA Load stability ≤1%+3mA Ripple noise: ≤50mArms (effective value) |
| Ketepatan Paparan | 1%+5 digit |
| Resolusi Paparan | Voltage: 0.01V, Current: 0.001A (Voltage above 100V: 0.1V, Current above 10A: 0.01A) |
| Dimensi Produk | Length 25.2cm x Width 17cm x Height 8.5cm |
| Berat Produk | lebih kurang 1.25KG |
| Dimensi Pakej | Length 33cm x Width 22cm x Height 13cm |
| Berat dengan Pembungkusan | lebih kurang 1.8KG |
| Spesifikasi Fius | 3.15A (for 220V input) |
3. Arahan Persediaan
3.1 Membongkar dan Pemeriksaan
- Tanggalkan bekalan kuasa dan semua aksesori daripada pembungkusan dengan berhati-hati.
- Verify that all items are present: SPS-W3010 power supply, power cord, and output cables.
- Inspect the unit for any signs of physical damage. If damage is found, do not use the unit and contact customer support.

Figure 4: The SPS-W3010 power supply packaged in its box, alongside the included power cord and output cables.
3.2 Sambungan Kuasa
- Ensure the power supply's input voltage setting (if applicable, check the rear panel for a voltage selector switch) matches your local mains voltage (110V atau 220V).
- Connect the provided power cord to the power input socket on the rear panel of the power supply.
- Palamkan hujung kord kuasa yang lain ke dalam salur keluar elektrik yang dibumikan.
3.3 Sambungan Output
- Before connecting any device, ensure the power supply is turned off and the voltage and current knobs are set to their minimum positions.
- Connect the red output cable to the positive (+) terminal and the black output cable to the negative (-) terminal on the front panel. The green terminal is for ground (GND).
- Connect the other ends of the output cables to your load device, ensuring correct polarity.
4. Arahan Operasi
4.1 Hidupkan/Mati Kuasa
- Press the 'POWER' button on the front panel to turn the unit ON. The digital display will illuminate.
- Press the 'POWER' button again to turn the unit OFF.
4.2 Jldtage Pelarasan
- Use the 'COARSE' knob for Voltage (V) to make large adjustments to the output voltage.
- Use the 'FINE' knob for Voltage (V) to make precise, small adjustments to the output voltage.
- Pantau voltage reading on the digital display.
4.3 Current Adjustment (Current Limit)
- Use the 'COARSE' knob for Current (A) to set the approximate current limit.
- Use the 'FINE' knob for Current (A) to set the precise current limit.
- The power supply will operate in Constant Voltage (CV) mode until the load draws current exceeding the set limit, at which point it will switch to Constant Current (CC) mode.
- Monitor the current reading on the digital display.
4.4 Output USB
- The front panel features a 5V/2A USB output port.
- Connect compatible USB devices for charging. This output is independent of the main adjustable DC output.

Figure 5: The SPS-W3010 power supply connected to a multimeter, demonstrating its 4-digit display accuracy during operation.
5. Penyelenggaraan
5.1 Pembersihan
- Sentiasa putuskan sambungan bekalan kuasa daripada sesalur kuasa sebelum membersihkan.
- Gunakan kain lembut dan kering untuk membersihkan bahagian luar unit. Jangan gunakan pembersih atau pelarut yang melelas.
5.2 Penyejukan
- Ensure the cooling fan on the rear panel is unobstructed to allow for proper airflow.
- Avoid operating the power supply in dusty environments to prevent fan and internal component clogging.
5.3 Penggantian Fius
- Jika bekalan kuasa tidak dihidupkan, fius mungkin perlu diganti.
- Putuskan sambungan kord kuasa daripada sesalur kuasa.
- Locate the fuse holder on the rear panel (refer to Figure 3).
- Carefully remove the fuse holder and replace the fuse with one of the correct specification (3.15A for 220V input). Using an incorrect fuse can damage the unit or pose a safety hazard.
- Masukkan semula pemegang fius dengan selamat.
6. Penyelesaian masalah
Isu dan Penyelesaian Biasa:
- Tiada Kuasa:
- Check if the power cord is securely connected to both the power supply and the electrical outlet.
- Verify that the electrical outlet is functional.
- Check and replace the fuse if necessary (refer to Section 5.3). - Tiada Keluaran Voltage/Semasa:
- Ensure the power supply is turned on.
- Check that the output cables are correctly connected to the terminals and the load device.
- Sahkan bahawa voltage and current adjustment knobs are not set to zero or minimum.
- If the 'CC' indicator is lit, the power supply is in constant current mode, meaning the load is drawing the maximum set current. Increase the current limit if more current is needed, or check the load for issues. - Lebihan Beban/Perlindungan Litar pintas:
- The power supply has built-in protection. If an overload or short circuit occurs, the output may shut down or limit current. Disconnect the load, resolve the issue with the load, and then reconnect. - Output Tidak Stabil:
- Ensure all connections are secure.
- Check for loose wires or faulty components in the load circuit.
7. Petua Pengguna
- Persediaan Awal: Sentiasa tetapkan voltage and current knobs to their minimum positions before connecting a new device to prevent accidental damage.
- Padanan Muatan: Ensure your load device's voltage and current requirements are within the power supply's output range (0-30V, 0-10A).
- Pemilihan kabel: For applications requiring high current, use output cables with an appropriate gauge to minimize voltage drop and heat generation.
- Pengudaraan: Always operate the power supply in a well-ventilated area to prevent overheating. Do not block the cooling fan.
- Keselamatan Diutamakan: Always double-check your connections and settings before applying power to your circuit.
8. Waranti dan Sokongan
For any technical assistance, warranty claims, or product-related inquiries, please contact the seller or manufacturer directly. Keep your purchase records for reference.
Senario Aplikasi:

Figure 6: Image illustrating various application scenarios for the power supply, including laboratory research, computer repair, mobile phone repair, and electronic equipment production.





