1. Wprowadzenie
Thank you for choosing the RockSeed HM305P Programmable DC Power Supply. This device is a high-precision, adjustable switching regulated power supply designed for laboratory, educational, and industrial applications. It features a 4-digit large display, USB interface for PC software control, and various protection functions to ensure safe and reliable operation. Please read this manual thoroughly before operating the device to ensure proper usage and to maximize its performance and lifespan.
2. Instrukcje bezpieczeństwa
To prevent electric shock, fire, or damage to the product, please observe the following safety precautions:
- Upewnij się, że zasilacz jest podłączony do uziemionego gniazdka.
- Nie używaj urządzenia w mokrym lub damp warunki.
- Nie otwierać casing; wewnątrz nie ma żadnych części nadających się do samodzielnej naprawy przez użytkownika.
- Sprawdź objętość wejściowątage matches local power specifications.
- Unikaj zwarcia zacisków wyjściowych.
- Always turn off the power supply and disconnect it from the main power before making any connections or disconnections.
- Nie przekraczaj maksymalnej objętościtagoraz prądu znamionowego urządzenia lub podłączonego obciążenia.
3. Koniec produktuview
3.1 Funkcje panelu przedniego

Figure 1: Front Panel Layout. Shows the HD LED display for voltage, current, and power, 6 shortcut parameter storage buttons (M1-M6), OVP/OCP/CV/CC indicators, adjustment knob, output ON/OFF button, and output terminals.
- Wyświetlacz LED HD: Pokazuje wolumen w czasie rzeczywistymtage (V), current (A), and power (W) readings.
- Przyciski pamięci (M1-M6): Store and recall up to 6 sets of voltage i aktualne parametry.
- Pokrętło regulacji: Used to precisely set voltage i aktualne wartości.
- Przycisk WŁ./WYŁ. wyjścia: Controls the power output to the terminals.
- Zaciski wyjściowe: Positive (+), Negative (-), and Ground (GND) connections for your load.
- OVP/OCP/CV/CC Indicators: Lights indicate Over Voltage Protection, Over Current Protection, Constant Voltage mode, and Constant Current mode.
3.2 Funkcje panelu tylnego

Figure 2: Rear Panel. Features the temperature-controlled cooling fan and the USB host computer control interface.
- Wentylator chłodzący: Temperature-controlled fan for efficient heat dissipation.
- Interfejs USB: For connecting to a PC for software control and programming.
- Wejście zasilania prądem zmiennym: Złącze głównego przewodu zasilającego.
3.3 Key Features and Accessories

Figure 3: Key Features. Highlights the device's capabilities such as programming, multiple protections, precision, and stability.

Figure 4: Included Accessories. Shows the standard accessories provided with the power supply.
The RockSeed HM305P comes with essential accessories for immediate use, including alligator clip test leads, a power cord, a USB cable for PC connectivity, and a software CD. Its portable design with an elastic handle (as shown in Figure 5) makes it convenient for various work environments.

Figure 5: Portable Design. Illustrates the compact size and integrated handle for easy transport.
4. Konfiguracja
- Rozpakowywanie: Ostrożnie wyjmij zasilacz i wszystkie akcesoria z opakowania. Sprawdź, czy nie mają śladów uszkodzeń.
- Podłączenie zasilania: Connect the provided AC power cord to the power input on the rear panel of the device, then plug the other end into a grounded AC power outlet.
- Pierwsze włączenie: Press the main power button on the front panel to turn on the device. The display should illuminate.
- Połączenia wyjściowe: Before connecting any load, ensure the power output is OFF (indicated by the output button not being lit or displaying "OFF"). Connect your load to the output terminals using the provided alligator clip leads or other suitable cables. Connect the positive (+) terminal of the load to the red (+) terminal of the power supply, and the negative (-) terminal of the load to the black (-) terminal of the power supply. For safety, connect the ground (GND) terminal to the chassis ground of your setup if required.
5. Instrukcja obsługi
5.1 Ustawianie głośnościtage i Aktualne
- Ensure the output is OFF before setting parameters.
- Regulacja głośnościtage: Press the 'V' button (or the corresponding button to select voltage adjustment). The voltage display will flash. Rotate the adjustment knob to set the desired voltage. Press the 'V' button again to confirm or wait a few seconds for it to auto-confirm.
- Regulacja prądu: Press the 'A' button (or the corresponding button to select current adjustment). The current display will flash. Rotate the adjustment knob to set the desired current limit. Press the 'A' button again to confirm or wait a few seconds for it to auto-confirm.
- Włączanie wyjścia: Raz tomtage and current limits are set, press the Output ON/OFF button to enable the power output. The button will illuminate, and the display will show the actual output voltagi aktualne.
5.2 Funkcje pamięci (M1-M6)
The device allows you to store and recall up to 6 sets of frequently used voltage i aktualne parametry.
- Storing Parameters: Ustaw żądaną głośnośćtage and current. Press and hold one of the memory buttons (M1-M6) for approximately 3 seconds until a beep sounds, indicating the parameters are saved.
- Recalling Parameters: Briefly press the desired memory button (M1-M6). The display will show the stored values. Press the button a second time to activate these settings.
5.3 Ponad tomtagOchrona przed przepięciami (OVP) i zabezpieczenie nadprądowe (OCP)
These features protect your load and the power supply from damage due to excessive voltage lub aktualne.
- Ustawianie OVP: Press the OVP button. The OVP value will flash. Use the adjustment knob to set the maximum allowable output voltage. Press OVP again to confirm.
- Ustawianie OCP: Press the OCP button. The OCP value will flash. Use the adjustment knob to set the maximum allowable output current. Press OCP again to confirm.
- Jeśli objętość wyjściowatage or current exceeds the set OVP or OCP limits, the power supply will automatically shut off its output and indicate the protection status.
5.4 Blokada klawiatury
To prevent accidental changes to settings, you can lock the front panel controls.
- Activating Lock: Press and hold the 'Lock' button (often combined with 'List' or another function) for a few seconds until the lock indicator appears or a beep sounds.
- Deactivating Lock: Repeat the same action to unlock the keyboard.
6. Sterowanie oprogramowaniem komputera
The RockSeed HM305P can be controlled and monitored via a computer using the provided USB interface and software.
- Instalacja oprogramowania: Insert the provided software CD into your computer's CD-ROM drive and follow the on-screen instructions to install the control software. If a CD drive is not available, please visit the manufacturer's webwitryna do pobierania oprogramowania.
- Podłączanie do komputera: Connect the power supply to your computer using the supplied USB cable.
- Launching Software: Open the installed control software on your PC. The software should automatically detect the power supply.
- Działanie: Refer to the software's built-in help or documentation for detailed instructions on controlling voltage, current, memory functions, and monitoring output via the PC interface. The software may also support advanced programming features.
Note: Some users have reported that the software documentation can be limited. Explore the software interface and its options, including right-clicking on tray icons for additional features. The device uses MODBUS serial protocol, and basic documentation for this protocol may be available on the software CD or manufacturer's webstrona.
7. Konserwacja
- Czyszczenie: Do czyszczenia zewnętrznej części zasilacza należy używać miękkiej, suchej ściereczki. Nie należy używać środków czyszczących o właściwościach ściernych ani rozpuszczalników.
- Wentylacja: Ensure the ventilation openings on the device are clear and unobstructed to allow for proper airflow and cooling.
- Składowanie: Jeśli zasilacz nie będzie używany przez dłuższy czas, należy przechowywać go w chłodnym, suchym miejscu, z dala od bezpośredniego światła słonecznego i ekstremalnych temperatur.
- Kalibrowanie: For professional applications requiring high accuracy, periodic calibration by qualified personnel is recommended.
8. Rozwiązywanie Problemów
| Problem | Możliwa przyczyna | Rozwiązanie |
|---|---|---|
| Brak objętości wyjściowejtage/aktualne | Output is OFF; OVP/OCP triggered; loose connections; power cord not connected. | Press the Output ON/OFF button. Check OVP/OCP settings and reset if necessary. Verify all connections are secure. Ensure the power cord is firmly plugged in. |
| Display shows "OFF" but output is desired | Output is intentionally disabled. | Press the Output ON/OFF button to enable output. |
| Niedokładna objtage/bieżące odczyty | Measurement error; device requires calibration. | Ensure proper connection to the load. Compare readings with a calibrated multimeter. If discrepancies persist, professional calibration may be needed. |
| High-pitched fan noise at low loads | Normal operation for variable speed fan at low power draws. | This is typically normal behavior. The noise should subside or change to a regular fan sound as the current draw increases. Ensure adequate ventilation. |
| PC software not connecting or functioning correctly | Incorrect driver installation; software compatibility issues; USB cable fault. | Reinstall USB drivers and software. Ensure the correct COM port is selected in the software. Try a different USB port or cable. Check manufacturer's website for updated software or drivers. |
9. Specyfikacje
| Funkcja | Wartość |
|---|---|
| Numer modelu | HM305P |
| Marka | Nasiona skalne |
| Objętość wyjściatage | 0-30 V (regulowane) |
| Prąd wyjściowy | 0-10A (regulowane) |
| Moc wyjściowatage | 305 watów |
| Obecna ocena | 10 Amps |
| Wyświetlacz | 4-cyfrowa dioda LED |
| Interfejs | USB |
| Wymiary produktu (dł. x szer. x wys.) | 10.43 x 4.92 x 5.71 cala |
| Waga przedmiotu | 5.52 funta (2.51 kilograma) |
| Metoda chłodzenia | Air (Temperature-controlled fan) |
| Data pierwszej dostępności | 17 grudnia 2019 r. |
10. Gwarancja i wsparcie
RockSeed products are designed for reliability and performance. For warranty information, technical support, or service inquiries, please refer to the warranty card included with your product or visit the official RockSeed website. Please have your model number (HM305P) and purchase date available when contacting support.