1. Продукт бүтүп калдыview
The Jesverty SPS-3030H is a variable DC power supply designed for precision applications. It features an encoder knob for convenient voltage and current setting, an output ON/OFF switch, and a 4-digit LED display. Built-in Over-Voltage Protection (OVP) and Over-Current Protection (OCP) ensure safe operation. This compact and lightweight unit is suitable for laboratories, educational sites, manufacturing tests, maintenance repairs, battery charging, and electronic DIY projects.

Сүрөт 1: Алдыңкы view of the Jesverty SPS-3030H DC Power Supply.

Сүрөт 2: Алдыңкы жана арткы views highlighting the dual output connectors, adjustment knobs, and cooling fan.
2. Коопсуздук чаралары
- Электр булагы жерге туташтырылган розеткага туташтырылганын текшериңиз.
- нымдуу же г менен иштетпеңизamp шарттар.
- Avoid short-circuiting the output terminals unless specifically performing a current adjustment procedure as outlined in the manual.
- Always turn off the output before connecting or disconnecting loads.
- Do not block ventilation openings; ensure proper airflow for the cooling fan.
- Refer to the specifications for maximum voltage and current ratings to prevent overload.
3. Орнотуу жана баштапкы иштетүү
3.1 Таңгактан чыгаруу жана текшерүү
Carefully remove the power supply from its packaging. Inspect the unit for any signs of physical damage. Verify that all included accessories are present: 1 x SPS-H/HP Unit, 1 x Power Cord, 1 x instruction manual.
3.2 Кубат туташтыруу
Connect the provided power cord to the AC input terminal on the rear of the power supply and then to a suitable grounded AC outlet. Note that power cords and AC input settings may vary by region.
3.3 Күйгүзүү/өчүрүү
- табыңыз КҮЧ алдыңкы панелиндеги баскыч.
- басыңыз КҮЧ button to switch the power supply ON. The LED display will illuminate.
- To turn OFF the power supply, press the КҮЧ кайра баскычын.
Video 1: Demonstration of basic power supply operation, including power on/off, voltage and current adjustment, and OVP/OCP settings.
4. Иштөө нускамалары
4.1-томtage жана Учурдагы тууралоо
The SPS-3030H features encoder knobs for precise adjustment of voltage and current, offering a setting resolution of 0.01V/0.01A.
- Тtage Тууралоо: табыңыз ТОМTAGE adjustment knob. Press the knob to select the digit you wish to change on the voltage display. Rotate the knob to adjust the value.
- Учурдагы тууралоо: табыңыз УЧУРДА adjustment knob. Press the knob to select the digit you wish to change on the current display. Rotate the knob to adjust the value.
4.2 Чыгууну күйгүзүү/өчүрүү башкаруусу
арналган OUT button allows for easy control of the power output without needing to disconnect the load or power off the unit.
- басыңыз OUT button to turn on the output. The "OUT" LED will illuminate.
- басыңыз OUT button again to turn off the output. The "OUT" LED will turn off.
4.3 Over-Voltage Protection (OVP) Setup
OVP protects connected devices from excessive voltagд. Качан чыгаруу томtage exceeds the set OVP trip point, the power supply will automatically shut down the output.
- басыңыз OVP button to enter the OVP configuration interface. The display will show "OFF" or "ON" and the current OVP trip point.
- Press and rotate the УЧУРДА knob to toggle OVP between "OFF" and "ON".
- колдонуу ТОМTAGE knob to set the desired OVP trip point. For example, to set it to 40V, adjust the value to 40.00V.
- басыңыз OVP button again to exit the configuration interface and return to the main display. The "OVP" LED will illuminate if OVP is active.
4.4 Over-Current Protection (OCP) Setup
OCP protects connected devices from excessive current. When the output current exceeds the set OCP trip point, the power supply will automatically shut down the output.
- басыңыз OCP button to enter the OCP configuration interface. The display will show "OFF" or "ON" and the current OCP trip point.
- Press and rotate the УЧУРДА knob to toggle OCP between "OFF" and "ON".
- колдонуу ТОМTAGE knob to set the desired OCP trip point. For example, to set it to 10A, adjust the value to 10.00A.
- басыңыз OCP button again to exit the configuration interface and return to the main display. The "OCP" LED will illuminate if OCP is active.

Figure 3: The power supply providing accurate power output, as demonstrated with external measurement devices.

Figure 4: The power supply's battery charging function, compatible with Ni-MH, Lithium, LiFePO4, and Lead-Acid batteries. Ensure correct current and voltage settings before charging.
5. Техникалык тейлөө
- Тазалоо: Тазалоодон мурун электр кубатын розеткадан сууруп алыңыз. Сыртын сүртүү үчүн жумшак, кургак чүпүрөктү колдонуңуз. Абразивдүү тазалоочу каражаттарды же эриткичтерди колдонбоңуз.
- Вентиляция: Regularly check that the ventilation openings are clear of dust and debris to ensure proper cooling.
- Сактагыч: Эгерде электр кубатын көпкө чейин колдонбосоңуз, анда аны салкын, кургак жерде, күндүн нуру түз тийбеген жана өтө жогорку температурадан алыс сактаңыз.
6. Кыйынчылыктарды
| Көйгөй | Мүмкүн себеп | Чечим |
|---|---|---|
| Кубат жок/Дисплей өчүк | Power cord disconnected or no AC power. | Check power cord connection and AC outlet. Ensure the POWER button is pressed. |
| Output not turning on (OUT LED off) | Output button not pressed, or OVP/OCP is triggered. | басыңыз OUT button. Check OVP/OCP settings and reset if triggered. |
| OVP LED flashing | Чыгуу томtage exceeded the set OVP trip point. | Reduce the set voltage or increase the OVP trip point. Press OVP баштапкы абалга келтирүү үчүн баскыч. |
| OCP LED flashing | Output current exceeded the set OCP trip point. | Reduce the load current or increase the OCP trip point. Press OCP баштапкы абалга келтирүү үчүн баскыч. |
| Бирдик ысык сезилет | Insufficient ventilation or prolonged high-power operation. | Ensure ventilation openings are clear. Reduce load or allow unit to cool down. The temperature-regulated cooling fan should activate. |
7. Техникалык шарттар
| Өзгөчөлүк | Деталь |
|---|---|
| Модел | SPS-3030H |
| Output Voltage | 0-30V |
| Output Current | 0-30A |
| Чыгуу Wattage | 900 Вт |
| Дисплей | 4-сандуу LED дисплей |
| Тууралоо | Encoder Knob (0.01V/0.01A resolution) |
| Коргоо | OVP (Ашыкча томtage Protection), OCP (Over-Current Protection) |
| Муздатуу ыкмасы | Air (Temperature-regulated cooling fan) |
| Өлчөмдөрү (болжол менен) | 13.2(D) x 8.4(W) x 6.5(H) inches (33.5cm x 21.3cm x 16.5cm) |
| Салмагы (болжол менен) | 6.6 фунт (3.0 кг) |
| Өндүрүүчү | Jesverty |
| Келип чыккан өлкө | Кытай |

Figure 5: Approximate dimensions and weight of the power supply.
8. Кепилдик жана Кардарларды колдоо
Jesverty provides professional technical support for this product. For any problems or questions regarding your order or the product's operation, please feel free to contact Jesverty Customer Service via Amazon message or email.
This product is covered by the standard manufacturer's warranty. Please retain your proof of purchase for warranty claims.