1. Einleitung
This manual provides comprehensive instructions for the safe and effective use of the OWON SPE8105 Programmable DC Power Supply. It covers product features, component identification, setup procedures, operating instructions, maintenance guidelines, troubleshooting tips, and detailed technical specifications. Please read this manual thoroughly before operating the device to ensure proper functionality and safety.

Figure 1: OWON SPE8105 Lab Power Supply and included accessories (power cord, USB cable).
2. Produktüberschreitungview
2.1 Hauptmerkmale
- Multi-Information Display: A 2.8-inch TFT LCD simultaneously displays set and actual voltage, current, output power, cumulative runtime, and channel status. It automatically switches to Constant Current (CC) mode if the actual current exceeds the preset value.
- Mehrere Schutzfunktionen: Includes current limit, thermal, voltage overload (OVP), short circuit, and overpower protection to enhance durability and longevity.
- Praktisches USB-Anschlussdesign: Features a 5V/1A USB output port for charging mobile devices and a rear USB communication port for firmware updates and PC software control.
- Adjustable Power Supply: Constant power design with a wide application range, allowing flexible configuration of higher voltage and current within the rated power. Programmable with four groups of shortcut parameters and supports waveform editing and editable timing output for up to ten groups.
- Kompakt und leicht: Measures 3.2 x 8.9 x 5.6 inches and weighs 3.3 pounds, optimizing workbench space and portability.
2.2 Komponenten der Vorderseite

Figure 2: Front and Rear Panel Layout of the OWON SPE8105.
- 2.8-Zoll-LCD: Displays operational parameters and settings.
- Current Setting Button: Used to adjust current parameters.
- Overcurrent Protection Setting (OCP): Configures overcurrent protection limits.
- Einstellknopf: Rotary encoder for parameter adjustment.
- Channel Output On/Off Button: Activates or deactivates the output. Long press for automatic output function.
- Channel Output Terminals: Connect positive (red), negative (black), and ground (green) leads.
- Shortcut Output Button (Memory): Accesses stored parameters. Long press to enter the List waveform timing output interface.
- Anzeigetaste: Toggles display modes or information.
- Übervolumentage Protection Setting (OVP): Configures overvoltage-Schutzgrenzen.
- Bandtage Setting Button (V): Used to adjust voltage Parameter.
2.3 Komponenten auf der Rückseite
- Intelligenter Lüfter mit Temperaturregelung: Sorgt für die Kühlung des Geräts.
- Sicherung: Overcurrent protection for the input power.
- Stromschalter: Schaltet das Gerät ein oder aus.
- USB Device Communication Port: For PC software control and firmware updates.
- Netzanschlussdose: Connects the power supply to the AC mains.
3. Einrichtung
- Auspacken: Carefully remove the power supply and all accessories from the packaging. Verify that all components listed in the package contents are present.
- Platzierung: Place the power supply on a stable, level surface with adequate ventilation. Ensure that the fan vents on the rear panel are not obstructed.
- Stromanschluss: Connect the provided power cord to the power cord socket on the rear panel of the device, then plug the other end into a grounded AC power outlet (100-240V AC).
- Ausgangsverbindungen: Connect your load to the output terminals on the front panel. Ensure correct polarity: red for positive (+), black for negative (-), and green for ground.
4. Bedienungsanleitung
4.1 Ein-/Ausschalten
- To power on, press the power switch on the rear panel to the 'ON' position. The LCD will illuminate.
- To power off, press the power switch on the rear panel to the 'OFF' position.
4.2 Lautstärke einstellentage und Strom

Abbildung 3: Ausführlich view of the 2.8-inch IPS LCD display.
- Press the 'V' button to select voltage adjustment. Rotate the adjustment knob to set the desired voltage.
- Press the 'I' button to select current adjustment. Rotate the adjustment knob to set the desired current limit.
- The display shows set values (Set) and actual output values.
4.3 Output Enable/Disable
- Press the 'On/Off' button to enable or disable the output to the connected load. The 'ON' or 'OFF' indicator on the display will change accordingly.
- A long press of the 'On/Off' button may activate an automatic output function, if configured.
4.4 Protection Functions (OVP/OCP)
- Übervolumentage-Schutz (OVP): Press the 'OVP' button to set the maximum allowable output voltage. Wenn die Ausgangsvoltage exceeds this limit, the power supply will shut down the output to protect the load.
- Überstromschutz (OCP): Press the 'OCP' button to set the maximum allowable output current. If the output current exceeds this limit, the power supply will switch to CC mode or shut down the output.
4.5 Speicherfunktion
- The 'Memory' button allows you to store and recall up to four groups of frequently used voltage und aktuelle Einstellungen.
- A long press on the 'Memory' button will enter the List waveform timing output interface for advanced programming.
4.6 Nutzung des USB-Anschlusses
- The front 5V/1A USB port can be used to charge compatible mobile devices.
- The rear USB communication port allows connection to a PC for software control and firmware updates. Refer to the OWON website for compatible software and update procedures.
5. Wartung
- Reinigung: Disconnect the power supply from the AC mains before cleaning. Use a soft, dry cloth to wipe the exterior. Do not use abrasive cleaners or solvents.
- Belüftung: Ensure that the ventilation openings are kept clear of dust and debris to prevent overheating.
- Sicherungswechsel: If the fuse blows, disconnect the power cord and replace it with a fuse of the same type and rating (refer to specifications).
- Lagerung: Bei längerer Nichtbenutzung sollte das Netzteil in einer trockenen, staubfreien Umgebung aufbewahrt werden.
6. Fehlerbehebung
- Kein Strom: Check the power cord connection and ensure the power switch is in the 'ON' position. Verify the AC outlet is functional and check the fuse on the rear panel.
- Keine Leistung: Ensure the output is enabled using the 'On/Off' button. Check for active OVP or OCP conditions that might have shut down the output. Verify connections to the load.
- Falsche Ausgabe: Überprüfen Sie die Lautstärketage and current settings. Ensure the load is connected correctly and is within the power supply's operating range.
- Überhitzung: Ensure adequate ventilation around the unit. Clear any obstructions from the fan vents. Reduce the load if operating continuously at high power.
- For persistent issues, refer to the detailed troubleshooting guide on the OWON support webWebsite oder wenden Sie sich an den Kundendienst.
7. Spezifikationen

Figure 4: OWON SPE8105 Product Specifications.
| Parameter | Wert |
|---|---|
| Modell | SPE8105 (OWON-SPS3081) |
| Ausgangsvolumentage | 0 bis 80 V |
| Ausgangsstrom | 0-10A |
| Maximale Ausgangsleistung | 500 W |
| Übervolumentage-Schutz (OVP) | 85 V |
| Überstromschutz (OCP) | 11 A |
| Übertemperaturschutz (OTP) | 85°C |
| Load Regulation (Voltage) | ≤20 mV |
| Load Regulation (Current) | ≤10 mA |
| Power Regulation (Voltage) | ≤20 mV |
| Power Regulation (Current) | ≤10 mA |
| Auflösung einstellen (Voltage) | 10mV |
| Auflösung einstellen (aktuell) | 1 mA |
| Rückleseauflösung (Vol.tage) | 10mV |
| Readback-Auflösung (Aktuell) | 1 mA |
| Setting Accuracy (25°C±5°C) (Voltage) | ≤ 0.01 % ± 20 mV |
| Setting Accuracy (25°C±5°C) (Current) | ≤ 0.05 % ± 10 mA |
| Readback Accuracy (25°C±5°C) (Voltage) | ≤ 0.01 % ± 20 mV |
| Readback Accuracy (25°C±5°C) (Current) | ≤ 0.05 % ± 10 mA |
| Ripple & Noise (Voltage) | ≤50mVss |
| Restwelligkeit und Rauschen (Strom) | ≤15mAp-p |
| Output Temperature Coefficient (Voltage) | 100ppm/°C |
| Output Temperature Coefficient (Current) | 200ppm/°C |
| Response Time (50%-100% rated load) | ≤5.0ms |
| Lagerung | 4 Datengruppen |
| Anzeige | 2.8inch LCD (IPS) |
| Schnittstelle | USB-Gerät |
| Abmessungen (B x H x T) | 82 mm x 142 mm x 226 mm |
| Gewicht | Ca. 1.8 kg |
Note: The instrument must be operated continuously for more than 30 minutes at the specified operating temperature to achieve the following specifications. Ripple & Noise bandwidth 20MHz, ripple bandwidth 1MHz, connect 10uF electrolytic capacitor in parallel with 0.1uF ceramic capacitor to the output terminal for testing.

Figure 5: OWON SPE8105 dimensions and internal component layout.
8. Garantie und Support
OWON products are designed for reliability and performance. For warranty information, technical support, or service, please contact your local distributor or visit the official OWON webBewahren Sie Ihren Kaufbeleg als Kaufnachweis für Garantieansprüche auf.
Manufacturer: ZHANGZHOU LILLIPUT ELECTRONIC TECHNOLOGY CO.,LTD.





