1. Introduktion
The KORAD KA3010P is a high-precision, single-channel, constant-voltage and constant-current DC linear power supply designed for laboratory, educational, and production environments. It features low ripple and noise, high reliability, and high accuracy. The voltage and current outputs are continuously adjustable, and the unit includes programmable storage settings for convenience.
Nøglefunktioner omfatter:
- Compact design with dual 4-digit LED displays for voltage og nuværende.
- Digital controls for precise adjustments.
- Four programmable memory settings (M1-M4) for quick recall of parameters.
- Output switch control for safety and convenience.
- Comprehensive circuit protection: over-load, short-circuit, and over-temperature.
- Automatic switching between mA and A display.
- Switchable power input (110V/220V).
2. Unit Features Overview
This section details the primary features of the KORAD KA3010P power supply.
Figur 2.1: Overview of KORAD KA3010P Unit Features.
2.1 Power & Protection
The unit is a 30V/10A benchtop power supply equipped with built-in over-current and over-voltage protection. It also features a dedicated on/off button for controlling the unit's output, allowing for safe connection and disconnection of loads without powering down the entire unit.
2.2 Memory Settings (M1-M4)
Four dedicated memory locations (M1, M2, M3, M4) are available to store frequently used current and voltage settings. This allows for quick recall and switching between desired test settings, enhancing operational efficiency.
2.3 Bright 4-Digit LED Display
The power supply features a bright, precise 4-digit LED display for both voltage and current. This display provides clear and accurate real-time readouts of the unit's output and active settings, ensuring legibility on any workbench.
2.4 Switchable Power Input
The unit's power input is easily switchable between 110V and 220V, accommodating different regional power standards. The rear panel also houses the fan air vent, which activates based on the internal temperature of the unit to ensure optimal cooling.
3. Panel overview
Understanding the front panel controls and indicators is essential for operating the KORAD KA3010P. Refer to the diagram below for a detailed layout.
Figure 3.1: KORAD KA3010P Front Panel Layout and Controls.
- Voltage-skærm (V): Viser den aktuelle udgangsvolumentage.
- Aktuel visning (A): Viser den aktuelle udgangsstrøm.
- OVP (Over-Volt Protection Active): Indicator for active over-voltage beskyttelse.
- OCP (Over-Current Protection Active): Indicator for active over-current protection.
- C.C (Constant Current Mode): Indicator for constant current operation.
- CV (Konstant volumen)tage-tilstand): Indicator for constant voltage betjening.
- OUT (Output On/Off Indicator): Shows if the output is active.
- LOCK (Front Panel Lock-Out Function): Indicator for locked front panel controls.
- M1-M4 (Setting Memory Indicator): Indicates which memory preset is active or being set.
- MEMORY (RECALL/SAVE) Buttons (M1-M4): Used to recall or save settings to memory locations.
- LÅS OP-knap: Used to unlock the front panel controls.
- BEEP Button: Toggles the keypad beep sound on/off.
- OCP-knap: Toggles over-current protection on/off.
- OVP-knap: Toggles over-voltage protection on/off.
- Off/On Button: Toggles the output power on/off.
- ADJUST Knob: Rotary encoder for setting voltage og aktuelle værdier.
- Digit Selector Buttons (<, >): Used to select the digit to adjust with the ADJUST knob.
- Voltage/Current Button: Skifter mellem lydstyrketage and current adjustment mode for the ADJUST knob.
- POWER -knap: Hovedafbryder til enheden.
- Output Terminals (+V, +A, GND): Terminals for connecting the load. Red for positive voltage/current, Black for negative voltage/current, Green for ground.
4. Opsætning
4.1 Indledende inspektion
Upon unpacking, inspect the unit for any signs of physical damage. Ensure all accessories are present. If any damage is found, contact your supplier immediately.
4.2 Strømtilslutning
- Bekræft input voltage selector switch on the rear panel is set to match your local power supply (110V or 220V).
- Connect the provided power cord to the AC inlet on the rear panel and plug it into a grounded power outlet.
4.3 Tilslutning af en belastning
Before connecting any load, ensure the power supply output is turned off (OUT indicator is off). Connect your device to the output terminals:
- Connect the positive (+) terminal of your load to the red (+) output terminal of the power supply.
- Connect the negative (-) terminal of your load to the black (-) output terminal of the power supply.
- For safety and noise reduction, connect the ground (GND) terminal to the chassis ground of your setup if required.
4.4 PC Software Control (Optional)
The KA3010P can be controlled via PC software using either a USB or RS232 interface located on the rear of the unit. Drivers and software are typically provided by the manufacturer or can be downloaded from their official website. Refer to the software's specific instructions for installation and usage.
Figure 4.1: KORAD KA3010P connected for PC software control via USB.
5. Betjening
5.1 Grundlæggende betjening
- Tryk på MAGT button to turn on the unit. The LED displays will illuminate.
- Tryk på Voltage/Strøm button to select whether you want to adjust voltage or current. The corresponding display will show the active setting.
- Brug < og > digit selector buttons to choose which digit of the voltage or current value you wish to adjust.
- Drej på TILPASSE knob to change the selected digit's value.
- Once desired voltage and current limits are set, press the Fra/Til button to enable the output. The UD indikator lyser.
- For at deaktivere udgangen skal du trykke på Fra/Til knappen igen.
5.2 Using Memory Presets (M1-M4)
5.2.1 Lagring af indstillinger
- Indstil den ønskede voltage and current values using the ADJUST knob and digit selectors.
- Tryk og hold en af M1, M2, M3, eller M4 buttons for approximately 2 seconds until a beep sounds, indicating the settings have been saved to that memory location.
5.2.2 Recalling Settings
To recall a saved setting, simply press the corresponding M1, M2, M3, eller M4 button briefly. The stored voltage og aktuelle værdier vil blive indlæst og vist.
5.3 Protection Functions (OVP/OCP)
The KA3010P includes Over-Voltage Protection (OVP) and Over-Current Protection (OCP) to safeguard the unit and connected loads.
- To enable or disable OVP, press the OVP button. When active, the OVP indicator will light up.
- To enable or disable OCP, press the OCP button. When active, the OCP indicator will light up.
- When OVP or OCP is triggered, the output will automatically shut down to prevent damage. Clear the fault condition and reset the output using the Off/On button.
5.4 Front Panel Lock-Out
To prevent accidental changes to settings, the front panel controls can be locked. Press the LÅSE button to activate the lock function. The LOCK indicator will illuminate. To unlock, press the LÅS OP knap.
6. Vedligeholdelse
Proper maintenance ensures the longevity and reliable operation of your KORAD KA3010P power supply.
- Rensning: Tag stikket ud af stikkontakten før rengøring. Tør ydersiden af med en blød, tør klud. Brug ikke slibende rengøringsmidler eller opløsningsmidler.
- Ventilation: Ensure the ventilation openings on the sides and rear of the unit are clear of obstructions to allow for proper airflow and cooling.
- Opbevaring: When not in use for extended periods, store the unit in a cool, dry place, away from direct sunlight and excessive dust.
- Udskiftning af sikring: If the unit does not power on, check the fuse located near the AC inlet on the rear panel. Replace only with a fuse of the same type and rating as specified by the manufacturer.
7. Fejlfinding
Dette afsnit indeholder løsninger på almindelige problemer, du kan støde på med din strømforsyning.
| Problem | Mulig årsag | Løsning |
|---|---|---|
| Enheden tænder ikke. | Ingen vekselstrøm; Sprunget sikring; Strømafbryder slukket. | Check power cord connection and wall outlet. Verify AC input voltage selector. Replace fuse if necessary. Ensure POWER button is pressed. |
| Ingen output voltage/strøm. | Output is off; OVP/OCP triggered; Incorrect settings. | Tryk på Fra/Til button to enable output. Check OVP/OCP indicators and clear fault. Verify voltage/strømindstillingerne er ikke nul. |
| Udgang voltage/strømmen er ustabil. | Poor load connection; Overload condition. | Ensure load connections are secure. Reduce load or check for short circuits in the load. |
| Front panel controls unresponsive. | Panel is locked. | Tryk på LÅS OP knap. |
If the problem persists after attempting these solutions, please contact KORAD customer support.
8. Specifikationer
Detailed technical specifications for the KORAD KA3010P power supply.
Figure 8.1: KORAD KA3010P Technical Specifications.
| Generelle specifikationer | |
|---|---|
| Model | KA3010P |
| VoltagRækkevidde | 0-30V |
| Nuværende rækkevidde | 0-10A |
| Produktmål (LxBxH) | 30.48 x 25.4 x 20.32 cm |
| Varens vægt | 5.9 kg |
| Input bindtage | Switchable 110V/220V |
| Performance Specifications (at 25°C ± 5°C) | |
|---|---|
| Load Regulation (Voltage) | ≤0.01% + 3mV |
| Load Regulation (Current) | ≤0.1 % + 20mA |
| Line Regulation (Voltage) | ≤0.01% + 3mV |
| Line Regulation (Current) | ≤0.1 % + 3mA |
| Setup Resolution (Voltage) | 10mV |
| Setup Resolution (Current) | 1mA |
| Setup Accuracy (Voltage) | ≤0.5% + 20mV |
| Setup Accuracy (Current) | ≤0.5 % + 20mA |
| Ripple (20-20M) (Voltage) | ≤2mVrms |
| Ripple (20-20M) (Current) | ≤5mARms |
| Temperaturkoefficient (voltage) | ≤150 ppm |
| Temperature Coefficient (Current) | ≤150 ppm |
| Read Back Resolution (Voltage) | 10mV |
| Read Back Resolution (Current) | 1mA |
| Read Back Temp. Coefficient (Voltage) | ≤150 ppm |
| Read Back Temp. Coefficient (Current) | ≤150 ppm |
Figure 8.2: KORAD KA3010P Physical Dimensions and Weight.
9. Garanti og support
KORAD products are designed for reliability and performance. For warranty information, technical support, or service inquiries, please contact your local distributor or the manufacturer directly. Keep your purchase receipt as proof of purchase for warranty claims.
Manufacturer: Korad Technology