1. Киришүү
The OWON SPE8205 is a high-performance programmable DC lab power supply designed for various applications requiring precise voltage and current control. It features a 2.8-inch TFT LCD for multi-information display, constant power design, and comprehensive protection functions. This manual provides essential information for the safe and efficient operation of your device.
Негизги өзгөчөлүктөр төмөнкүлөрдү камтыйт:
- 2.8-inch TFT LCD for simultaneous display of voltage, current, power, runtime, and channel status.
- Multiple protection functions: current limit, thermal, voltage overload (OVP), short circuit, and overpower (OCP).
- Convenient 5V/1A USB output port for charging mobile devices.
- Rear USB communication port for firmware updates and PC software control.
- Programmable with four groups of shortcut parameters and support for waveform editing output and editable timing output for up to ten groups.
- Compact and lightweight design, measuring 3.2 x 8.9 x 5.6 inches and weighing 3.3 pounds.
2. Коопсуздук нускамалары
Түзмөктү иштетүүдөн мурун бардык коопсуздук көрсөтмөлөрүн окуп чыгып, түшүнүп алыңыз. Бул көрсөтмөлөрдү аткарбоо жаракат алууга же продуктунун бузулушуна алып келиши мүмкүн.
- Кубат булагы: Connect the power supply only to a grounded AC outlet with the correct voltage диапазону (90-120V AC).
- Вентиляция: Агрегаттын айланасында жетиштүү желдетүүнү камсыз кылыңыз. Вентиляция тешиктерин жаап албаңыз.
- Курчап турган чөйрө: Operate the device in a dry environment, away from moisture, dust, and corrosive gases. Avoid direct sunlight and high temperatures.
- Чыгуу терминалдары: Do not touch the output terminals when the power supply is operating. Ensure proper insulation for all connections.
- Ашыкча жүктөө: Do not exceed the maximum output voltage, current, or power ratings of the device.
- Тейлөө: Бардык тейлөөлөрдү квалификациялуу кызматкерлерге тапшырыңыз. Агрегатты өзүңүз ачууга же оңдоого аракет кылбаңыз.
- Негиздөө: Always ensure the power supply is properly grounded to prevent electric shock.
3. Продукт бүтүп калдыview
3.1 алдыңкы панели

Figure 3.1: Front Panel of the OWON SPE8205 Power Supply
The front panel features a 2.8-inch LCD display, control buttons, an adjustment knob, and output terminals. Key components include:
- 2.8-inch LCD: Чыгуу томун көрсөтөтtage, current, power, and settings.
- Тtage Setting Button (V): Used to adjust the output voltage.
- Current Setting Button (I): Used to adjust the output current.
- Overvoltage Protection (OVP) Button: Sets the overvoltage коргоо чеги.
- Overcurrent Protection (OCP) Button: Sets the overcurrent protection limit.
- Дисплей баскычы: Toggles between different display modes or curve displays.
- Эстутум баскычы: Accesses memory functions for saving and recalling settings. Long press to enter waveform timing output interface.
- Күйгүзүү/өчүрүү баскычы: Toggles the output channel on or off. Long press to activate the automatic output function.
- Жөнгө салуу баскычы: Used to fine-tune voltage, current, and other parameter settings.
- Channel Output Terminals: Red (+) and Black (-) terminals for connecting the load. A green ground terminal is also provided.
3.2 Арткы панель

Figure 3.2: Rear Panel of the OWON SPE8205 Power Supply
The rear panel includes the main power input, fuse, power switch, and communication ports.
- Power Cord Socket: AC кубат шнурын туташтырат.
- Страховка: Protects the unit from overcurrent.
- Кубат которгучу: Turns the main power to the unit on or off.
- USB Device Communication Port: For PC software control and firmware updates (supports SCPI commands).
- Акылдуу температураны башкаруу желдеткичи: Provides cooling for the internal components.
4. Орнотуу жана орнотуу
4.1 Таңгактан чыгаруу жана текшерүү
Upon receiving the OWON SPE8205, carefully unpack the unit and inspect it for any signs of damage during transit. Verify that all accessories listed in the package contents are present.
4.2 Кубат туташтыруу
- Арткы панелдеги кубат которгучу ӨЧҮРҮҮ абалында экенин текшериңиз.
- Connect the provided power cord to the power cord socket on the rear panel.
- Plug the other end of the power cord into a grounded AC outlet (90-120V AC).
4.3 Output Terminal Connection
- Connect the positive (+) lead of your load to the red output terminal.
- Connect the negative (-) lead of your load to the black output terminal.
- For safety and noise reduction, connect the ground lead of your load (if applicable) to the green ground terminal.
- Бардык байланыштар коопсуз жана туура изоляцияланганын текшериңиз.
5. Негизги операция
5.1 Күйгүзүү/өчүрүү
- Flip the main power switch on the rear panel to the ON position. The LCD display will illuminate.
- Өчүрүү үчүн, негизги кубат которгучун ӨЧҮРҮҮ абалына буруңуз.
5.2 Setting Voltage жана Current
- басыңыз V том тандоо үчүн баскычtage adjustment. The voltage value on the display will become editable.
- айлантыңыз Жөнгө салуу баскычы to set the desired voltage. Press the knob to switch between digit selection for fine-tuning.
- басыңыз I button to select current adjustment. The current value on the display will become editable.
- айлантыңыз Жөнгө салуу баскычы to set the desired current limit. Press the knob to switch between digit selection.
- Once settings are complete, press the V or I button again to exit adjustment mode.
5.3 Output Enable/Disable
басыңыз On/Off button on the front panel to enable or disable the output to the terminals. When the output is enabled, the display will show the actual output voltage and current. When disabled, the output terminals are de-energized.
5.4 Multi-Information Display

5.4-сүрөт: Детальдуу View of the 2.8-inch LCD Display
The 2.8-inch TFT LCD simultaneously displays critical operational data:
- Channel Output Status: Indicates if the output is ON or OFF.
- CV/CC Mode: Shows whether the unit is operating in Constant Voltage (CV) or Constant Current (CC) mode.
- Cumulative Running Time: Tracks the total operational time.
- Actual Output Power: Displays the real-time power being delivered.
- Actual Voltage Чыгуу: Өлчөнгөн көлөмtage чыгуу терминалдарында.
- Actual Current Output: The measured current flowing through the load.
- Set Values (V/I): The configured voltage жана учурдагы чектөөлөр.
- Limit Values (OVP/OCP): The set Overvoltage and Overcurrent Protection limits.
6. Өркүндөтүлгөн функциялар
6.1 Constant Power Design

Figure 6.1: Constant Power Wide Range Specifications
The SPE8205 features a constant power design, allowing flexible configuration of higher voltage and current within its rated 500W power range. This means you can achieve various voltage/current combinations as long as their product does not exceed 500W. For example, you can set 80V at 6.25A or 25V at 20A.
6.2 Protection Functions (OVP, OCP, OTP, Short Circuit)
The power supply incorporates multiple protection mechanisms to safeguard both the unit and the connected load:
- Overvoltage Коргоо (OVP): Эгерде чыгаша томtage exceeds the preset OVP limit, the output will be disabled. Set OVP using the OVP баскычы.
- Ашыкча ток коргоо (OCP): If the output current exceeds the preset OCP limit, the output will be disabled. Set OCP using the OCP баскычы.
- Thermal Protection (OTP): The unit will shut down if internal temperatures become too high.
- Кыска туташуулардан коргоо: Automatically protects against short circuits at the output terminals.
- Ашыкча күчтөн коргоо: Limits output power to prevent damage.
6.3 Эстутум функциялары
The SPE8205 allows you to save and recall up to four groups of frequently used voltage and current settings. This enables quick configuration for repetitive tasks.
- Сактоо орнотуулары: Каалаган томду коюңузtage and current, then press and hold the Эс button. Use the adjustment knob to select a memory location (1-4) and press the knob to confirm saving.
- Recalling Settings: басыңыз Эс button briefly. Use the adjustment knob to select the desired memory location and press the knob to recall the settings.
6.4 USB Communication and 5V/1A Output
The rear USB port facilitates communication with a PC for advanced control and firmware updates. Dedicated PC software can be used to program and monitor the power supply. Additionally, a 5V/1A USB output port on the front panel provides convenient charging for mobile devices or powering small USB-powered accessories.
7. Техникалык шарттар

Figure 7.1: OWON SPE8205 Detailed Product Specifications
The instrument must be operated continuously for more than 30 minutes at the specified operating temperature to achieve the following specifications:
| Параметр | Спецификация |
|---|---|
| Модел | SPE8205 |
| Output Voltage | 0-80V |
| Output Current | 0-20A |
| Максималдуу чыгаруу күчү | 500 Вт |
| OVP (Overvoltage Коргоо) | 85V |
| OCP (Overcurrent Protection) | 21A |
| OTP (Overtemperature Protection) | 85°C |
| Жүктөө регламенти | ≤20mV (Voltage); ≤10mA (Current) |
| Кубат жөнгө салуу | ≤20mV (Voltage); ≤10mA (Current) |
| Резолюцияны орнотуу | 10mV / 1mA |
| Резолюцияны кайра окуу | 10mV / 1mA |
| Setting Accuracy (25°C±5°C) | ≤0.01%±20mV (Voltage); ≤0.05%±10mA (Current) |
| Окуу тактыгы (25°C±5°C) | ≤0.01%±20mV (Voltage); ≤0.05%±10mA (Current) |
| Ripple & Noise (*Note) | ≤50mVp-p; ≤15mAp-p |
| Output temperature coefficient (0°C-40°C) | 100ppm/°C (Voltage); 200ppm/°C (Current) |
| Readback temperature coefficient | 100ppm/°C (Voltage); 200ppm/°C (Current) |
| Response Time (50%-100% rated load) | ≤5.0ms |
| Сактагыч | 4 маалымат топтору |
| Дисплей | 2.8inch LCD (IPS) |
| Интерфейс | USB түзмөк |
| Өлчөмү (W x Y x D) | 82мм (W) x 142mm (H) x 226mm (D) |
| Салмагы | Болжол менен 1.8 кг |
*Note: Ripple & Noise (Noise bandwidth 20MHz, ripple bandwidth 1MHz, connect 10uF electrolytic capacitor in parallel with 0.1uF ceramic capacitor to the output terminal for testing).
8. Техникалык тейлөө
Proper maintenance ensures the longevity and reliable operation of your OWON SPE8205 power supply.
- Тазалоо: Тазалоодон мурун электр кубатын розеткадан жана бардык жүктөөлөрдөн ажыратыңыз. Сыртын сүртүү үчүн жумшак, кургак чүпүрөктү колдонуңуз. Абразивдүү тазалоочу каражаттарды же эриткичтерди колдонбоңуз.
- Вентиляция: Regularly check that the ventilation openings on the sides and rear are clear of dust and obstructions.
- Сактагыч: When not in use for extended periods, store the unit in a dry, dust-free environment within its specified operating temperature range.
- Сактагычты алмаштыруу: If the fuse blows, replace it only with a fuse of the same type and rating as specified on the rear panel. Ensure the unit is disconnected from power before attempting fuse replacement.
9. Кыйынчылыктарды
This section addresses common issues you might encounter with the OWON SPE8205 power supply.
- Кубат жок:
- Check if the power cord is securely connected to both the unit and the AC outlet.
- Ensure the rear power switch is in the ON position.
- Кондиционер розеткасы иштеп турганын текшериңиз.
- Check the fuse on the rear panel and replace if blown.
- No Output Voltage/Current:
- Ensure the front panel On/Off button is pressed to enable the output.
- Check if OVP or OCP has been triggered. If so, clear the fault and reset the output.
- тtage and current settings are not set to zero.
- Inspect output leads for proper connection and continuity.
- Туруксуз чыгаруу:
- Ensure the load is properly connected and stable.
- Check for loose connections in the output circuitry.
- Айлана-чөйрөнүн температурасы белгиленген иштөө диапазонунда экенин текшериңиз.
- Желдетүүчү ызы-чуу:
- The intelligent temperature control fan will activate and adjust speed based on internal temperature and load. Increased fan noise under heavy load is normal.
- Вентиляция тешиктери жабылбаганын текшериңиз.
If the problem persists after attempting these troubleshooting steps, please contact OWON customer support.
10. Кепилдик жана колдоо
OWON products are designed and manufactured to high-quality standards. For warranty information and technical support, please refer to the documentation included with your purchase or visit the official OWON webсайт.
Кошумча жардам алуу үчүн, сиз да барсаңыз болот OWON Store on Amazon.





