1. 서론
This manual provides comprehensive instructions for the safe and effective operation of the KORAD KA3005P Programmable DC Power Supply. The KA3005P is a high-precision, variable, and adjustable linear power supply designed for laboratory, educational, and industrial applications. It offers stable and reliable DC power output with advanced features such as programmable control, memory storage, and multiple safety protections.
그림 1.1: KORAD KA3005P Programmable DC Power Supply. This image shows the front and side view of the power supply unit, highlighting its compact design and the clear digital display.
2. 안전 지침
To ensure safe operation and prolong the life of your KORAD KA3005P power supply, please observe the following safety precautions:
- Always connect the power supply to a properly grounded AC outlet.
- Do not operate the unit in a wet or damp 환경.
- 과열을 방지하기 위해 제품 주변에 적절한 환기가 이루어지도록 하십시오. 환기구를 막지 마십시오.
- c를 열지 마세요asin전원 공급 장치의 g 부분입니다. 내부에는 사용자가 수리할 수 있는 부품이 없습니다. 모든 수리는 자격을 갖춘 전문가에게 맡기십시오.
- 입력 볼륨 확인tage selector switch (110V/220V) on the rear panel is set correctly for your local power supply before connecting to AC mains.
- Disconnect the power cord before performing any maintenance or when the unit is not in use for extended periods.
- Avoid short-circuiting the output terminals. Although the unit has short-circuit protection, prolonged short circuits can cause damage.
- Use appropriate test leads and ensure they are rated for the voltage and current levels you intend to use.
3. 상자 안에 무엇이 들어있나요?
Upon unpacking your KORAD KA3005P, please verify that all the following items are included:
- 1 x KORAD KA3005P Power Supply Unit
- 1 x AC 전원 코드
- 1 x USB 케이블
- 1 x Set of 5 Amp Test Leads (Banana plug to Crocodile clip)
- 1 x 사용자 설명서
- 1 x CD containing Remote Control Software
4. 제품 특징
The KORAD KA3005P is equipped with a range of features designed for precision and ease of use:
- High Precision Output: Provides stable and accurate 0-30V and 0-5A DC output.
- 4자리 LED 디스플레이: Bright and clear display for precise voltage (0.001V resolution) and current (0.001A resolution) readings.
- 프로그래밍 가능한 제어: USB and RS232 ports for remote control via PC software.
- 메모리 저장: Four dedicated memory locations (M1-M4) to save and recall frequently used voltag전자 및 현재 설정.
- 일정한 볼륨tage (CV) & Constant Current (CC) Modes: Automatically switches between modes to maintain stable output.
- 포괄적인 안전 보호: Includes Over-Current Protection (OCP), Over-Voltage Protection (OVP), and Short-Circuit Protection.
- 출력 켜기/끄기 버튼: Allows safe connection and disconnection of loads without powering down the unit.
- 잠금 기능 : 작동 중에 실수로 설정이 변경되는 것을 방지합니다.
- 전환 가능한 입력 볼륨tage: Supports 110V/220V AC input, making it suitable for international use.
- 조용한 냉각 팬: Built-in variable speed fan for efficient heat dissipation and reduced operational noise.
그림 4.1: Key features of the KORAD KA3005P. This image illustrates the power and protection mechanisms, memory settings, the bright 4-digit LED display, and the switchable power input on the rear panel.
5. 패널 오버view
5.1 전면 패널
그림 5.1: Front Panel Layout of the KORAD KA3005P. This image provides a detailed view of the front panel with numbered labels indicating the function of each control and indicator.
- 권tage 판독값(V): 출력 볼륨 표시tage 볼트.
- Current Readout (A or mA): Displays the output current in Amp에레스 또는 밀리amp에레스.
- Power Readout (Watts): Displays the calculated output power in Watts.
- 일정한 볼륨tage Mode Indicator (CV): 장치가 정전압 모드로 작동할 때 표시등이 켜집니다.tag전자 모드.
- Constant Current Mode Indicator (CC): 정전류 모드로 작동할 때 표시등이 켜집니다.
- Memory Setting Indicator (M1-M4): Indicates which memory preset is currently active.
- Over-Current Protection Indicator (OCP): 과전류 보호 기능이 작동 중일 때 표시등이 켜집니다.
- 오버볼tage Protection Indicator (OVP): Illuminates when Over-Voltage 보호 기능이 활성화되었습니다.
- Front Panel Lock Indicator (LOCK): Illuminates when the front panel controls are locked.
- Output On/Off Indicator (ON): 출력이 활성화되면 켜집니다.
- A/mA Button: 전환 Amperage and milliAmperage display, and also serves as the Panel Lock button when held.
- OCP 버튼: Activates/deactivates Over-Current Protection.
- OCP SET Button: Used to set the Over-Current Protection limit.
- OVP 버튼: Activates/deactivates Over-Voltage 보호.
- OVP SET Button: Used to set the Over-Voltage Protection limit.
- 켜기/끄기 버튼: Toggles the output power ON or OFF.
- Memory Save/Recall Buttons (M1-M4): Used to save and recall voltag전자 및 현재 설정.
- 삐 소리 버튼: Toggles the audible feedback (beeper) ON or OFF.
- SENSE Button: (Functionality may vary, typically for remote sensing).
- Setting Adjustment Dial: 볼륨 조절용 로터리 엔코더tag전자 및 현재 값.
- Digit Selection Buttons (Left/Right Arrows): Used to select the digit to be adjusted by the Setting Adjustment Dial.
- 권tage/Current Adjustment Selector: Toggles between adjusting voltage와 현재.
- 출력 단자: 부하 연결용 빨간색(+) 단자와 검은색(-) 단자가 있습니다.
- 접지 단자(GND): 섀시 접지 연결용 녹색 단자.
- 전원 버튼: 장치의 주 전원 스위치입니다.
5.2 후면 패널
그림 5.2: Rear Panel Layout of the KORAD KA3005P. This image displays the rear panel, showing the AC input, voltage selector, cooling fan, and communication ports.
- AC 입력 소켓: 제공된 AC 전원 코드를 연결하십시오.
- 권tage 선택 스위치(110V/220V): Allows selection of the appropriate input voltage 귀하의 지역에 대해. Ensure this is set correctly before connecting to power.
- 냉각 팬: Automatically adjusts speed based on internal temperature to maintain optimal operating conditions.
- USB 포트: For connecting to a computer for programmable control.
- RS232 포트: For connecting to a computer or other devices for programmable control.
- 퓨즈 홀더: 메인 AC 입력 퓨즈가 포함되어 있습니다.
6. 설정
6.1 초기 검사
Before connecting the power supply, inspect the unit for any signs of physical damage that may have occurred during shipping. If any damage is found, contact your supplier immediately.
6.2 Setting Input Voltage
볼륨 찾기tage selector switch on the rear panel of the unit. Ensure it is set to match your local AC mains voltag전압은 110V 또는 220V 중 어느 쪽이든 상관없습니다. 전압 설정이 잘못되면 제품이 손상될 수 있습니다.
그림 6.1: Rear panel showing the 110V/220V voltage selector switch. This switch must be correctly set to match the local AC power supply before operation.
6.3 전원 연결
Connect the supplied AC power cord to the AC input socket on the rear panel and then plug it into a grounded wall outlet.
6.4 출력 연결
Connect your load to the output terminals on the front panel using the provided test leads or other suitable leads. Ensure correct polarity: Red for positive (+), Black for negative (-). The green terminal is for chassis ground.
7. 사용 설명서
7.1 전원 켜기/끄기
- 를 누르세요 힘 button on the front panel to turn the unit ON. The display will illuminate.
- 를 누르세요 힘 버튼을 다시 누르면 기기가 꺼집니다.
7.2 볼륨 설정tage와 현재
- 를 누르세요 권TAG전자/현재 button to select whether you are adjusting voltage or current. The corresponding display will flash.
- 사용하세요 왼쪽/오른쪽 화살표 buttons to select the digit you wish to adjust. The selected digit will flash.
- 회전하다 Setting Adjustment Dial to change the value of the selected digit.
- 원하는 볼륨이 되면tage and current limit are set, press the 켜짐/꺼짐 button to enable the output. The ON 표시등이 켜집니다.
그림 7.1: Close-up of the bright 4-digit LED display. This display provides precise and clear readouts of voltage and current, essential for accurate power delivery.
7.3 Memory Functions (M1-M4)
The unit allows you to save and recall up to four sets of voltag전자 및 현재 설정.
- 저장하려면: 원하는 볼륨 설정tage and current. Press and hold the desired memory button (M1, M2, M3 또는 M4) until you hear a beep or the display indicates saving.
- 리콜하려면 : Briefly press the desired memory button (M1, M2, M3 또는 M4). The saved settings will be loaded.
그림 7.2: Close-up of the memory save/recall buttons (M1-M4). These buttons allow users to quickly store and retrieve frequently used voltag전자 및 현재 설정.
7.4 출력 ON/OFF 제어
그만큼 켜짐/꺼짐 button controls the output power to the terminals independently of the main power switch.
- 누르다 켜짐/꺼짐 to enable output. The ON 표시등이 켜집니다.
- 누르다 켜짐/꺼짐 again to disable output. The ON 표시등이 꺼집니다.
- It is recommended to disable the output before connecting or disconnecting loads.
7.5 잠금 기능
작동 중 설정이 실수로 변경되는 것을 방지하기 위해 전면 패널 컨트롤을 잠글 수 있습니다.
- 를 누르고 계세요 암페어 몇 초 동안 버튼을 눌러 잠그다 indicator illuminates. All front panel controls will be disabled.
- 잠금을 해제하려면 암페어 때까지 버튼을 다시 잠그다 표시등이 꺼집니다.
7.6 Over-Current Protection (OCP) and Over-Voltag전자 보호(OVP)
These features protect your connected load and the power supply from damage due to excessive current or voltage.
- Setting OCP/OVP: 를 누르세요 OCP SET or OVP SET 버튼을 사용합니다. Setting Adjustment Dial 그리고 왼쪽/오른쪽 화살표 buttons to set the desired protection limit.
- Activating OCP/OVP: 를 누르세요 오씨피 or 오비피(OVP) button to enable the protection. The corresponding indicator will light up.
- When an OCP or OVP event occurs, the output will automatically shut off, and the respective indicator will flash. To reset, disable the protection or resolve the fault, then press the 켜짐/꺼짐 button to re-enable output.
그림 7.3: Close-up of the protection and control buttons. This image highlights the OCP, OVP, and Lock buttons, which are crucial for safe operation and preventing accidental changes.
8. Programmable Control
The KORAD KA3005P can be controlled remotely via a computer using the USB or RS232 ports located on the rear panel.
- 소프트웨어 설치: Insert the provided CD into your computer and follow the on-screen instructions to install the remote control software. Drivers for the USB/RS232 interface may also be included.
- 연결: Connect the power supply to your computer using the supplied USB cable or an RS232 cable (not included for RS232).
- 소프트웨어 운영: Launch the installed software. Select the correct COM port corresponding to your connected power supply. The software allows you to set voltage, current, enable/disable output, and configure protection limits from your computer. Some software versions may support programmable sequences or data logging.
- 직렬 프로토콜: For advanced users, the user manual and CD typically contain documentation on the serial communication protocol, allowing for custom software development or integration with other programming environments (e.g., LabVIEW, Python).
그림 8.1: Rear panel showing USB and RS232 ports for programmable control. The image also displays the included user manual, USB cable, test leads, and software CD, which facilitate remote operation.
For software downloads or updates, please refer to the official KORAD website or the link provided in the manual (e.g., www.koradtechnology.com).
9. 유지관리
The KORAD KA3005P is designed for reliable operation with minimal maintenance. Follow these guidelines:
- 청소: 청소하기 전에 전원 공급 장치를 AC 콘센트에서 분리하십시오. 부드럽고 마른 천으로 외부를 닦으십시오. 연마성 세척제나 용제를 사용하지 마십시오.
- 통풍: Ensure the ventilation openings on the sides and rear of the unit are free from dust and obstructions. Periodically clean the fan vents with compressed air if necessary.
- 퓨즈 교체: If the unit does not power on, check the fuse located in the fuse holder on the rear panel. Replace only with a fuse of the same type and rating (e.g., 5A/250V for 110V input, 3A/250V for 220V input). Always disconnect the power cord before replacing the fuse.
- 저장: 장기간 사용하지 않을 경우, 직사광선과 극한 온도 변화를 피해 서늘하고 건조한 곳에 보관하십시오.
10. 문제 해결
If you encounter issues with your KORAD KA3005P, refer to the following common problems and solutions:
| 문제 | 가능한 원인 | 해결책 |
|---|---|---|
| 장치의 전원이 켜지지 않습니다. | No AC power; Blown fuse; Incorrect voltage 선택기 설정. | Check power cord connection and wall outlet. Replace fuse if blown. Verify voltage selector (110V/220V) on rear panel is correct. |
| 출력 볼륨 없음tag전자/전류. | Output is OFF; OCP/OVP triggered; Short circuit at output. | 를 누르세요 켜짐/꺼짐 button to enable output. Check if OCP/OVP indicators are flashing; resolve fault and reset. Check for short circuits in the load or test leads. |
| 출력 볼륨tage/current is unstable. | Poor load connection; Overheating; Faulty test leads. | Ensure secure connections to the load. Check ventilation and allow unit to cool. Inspect and replace test leads if damaged. |
| Display shows incorrect readings. | 교정 문제; 외부 간섭. | If readings are consistently inaccurate, contact support for calibration. Minimize external electromagnetic interference. |
| Software communication issues. | Incorrect COM port; Driver issues; Software incompatibility. | Verify COM port selection in software. Reinstall USB/RS232 drivers. Ensure software version is compatible with your operating system. Refer to software documentation. |
If the problem persists after attempting these solutions, please contact KORAD customer support.
11. 사양
Technical specifications for the KORAD KA3005P Programmable DC Power Supply:
그림 11.1: KORAD KA3005P Unit Specifications. This image provides a visual summary of the key technical parameters of the power supply.
| 매개변수 | 값 |
|---|---|
| 권tag및 범위 | 0-30V |
| 현재 범위 | 0-5A |
| 부하 조절(볼륨)tage) | ≤0.01 % + 2mV |
| 부하 조절(전류) | ≤0.1 % + 10mA |
| Line Regulation (Voltage) | ≤0.01 % + 3mV |
| Line Regulation (Current) | ≤0.1 % + 3mA |
| Setup Resolution (Voltage) | 10mV |
| Setup Resolution (Current) | 1mA |
| Setup Accuracy (25°C ± 5°C) (Voltage) | ≤0.5 % + 20mV |
| Setup Accuracy (25°C ± 5°C) (Current) | ≤0.5 % + 10mA |
| Ripple (20-20M) (Voltage) | ≤2mVrms |
| Ripple (20-20M) (Current) | 2mArms 이하 |
| 온도 계수(Voltage) | ≤150ppm |
| Temperature Coefficient (Current) | ≤150ppm |
| Read Back Resolution (Voltage) | 10mV |
| Read Back Resolution (Current) | 1mA |
| Reaction Time (Voltage Rise) | ≤100mS (Voltage 드롭) |
| 인터페이스 | Programmable (USB, RS232) |
| 무게 | 9.52파운드/4.32kg |
| 치수(폭 x 높이 x 깊이) | 100mm(W) x 156mm(H) x 260mm(D) |
그림 11.2: 옆 view of the KORAD KA3005P, illustrating its physical dimensions. The unit measures 4.4 inches (W) x 6.5 inches (H) x 10.5 inches (D).
12. 보증 및 지원
KORAD products are manufactured to high quality standards. For warranty information and technical support, please refer to the documentation included with your purchase or visit the official KORAD web대지.
- 보증: 보증 청구를 위해 구매 증빙 자료를 보관해 주십시오. 보증 약관은 지역에 따라 다를 수 있습니다.
- 기술 지원: For technical assistance, troubleshooting beyond this manual, or service inquiries, please contact KORAD customer support through their official channels.
- 온라인 리소스: Check the KORAD website for updated manuals, software, and FAQs.
