LODESTAR DC Laboratory Power Supply User Manual

1. Introducció

The LODESTAR DC Laboratory Power Supply is a versatile and high-performance adjustable voltage regulator designed for various applications including electronic maintenance, circuit board production, electronic engineering development, and college teaching experiments. This series offers stable voltage and current output with multiple protection functions, intelligent temperature control, and a user-friendly interface.

Available models and their specifications:

LKS3005: 30 V, 5 A
LKS3010: 30 V, 10 A
LKD3005: 30 V, 5 A
LKD3010: 30 V, 10 A
LKD6005: 60 V, 5 A
LKD1203: 120 V, 3 A

Davant view of LODESTAR DC Power Supply LKD6005 — Davant view of the LODESTAR DC Power Supply LKD6005, showing the display and controls.

Interna view of the power supply highlighting features such as multiple protection, high precision, load use, low ripple, intelligent temperature control, and compact/portable design.

Various application scenarios for the power supply — The power supply is widely used in various scenarios, including electronic maintenance inspection, circuit board production workshops, electronic engineering development, and college teaching experiments.

2. Configuració

2.1 Desembalatge i components

Upon receiving your LODESTAR DC Power Supply, carefully unpack the contents. The package typically includes:

Caixa d'embalatge
Host machine (DC Power Supply unit)
Llibre d'instruccions
Cable d'alimentació
Power Output Line (Gift)
Targeta de garantia

Product display showing included accessories — Product display showing the main unit and included accessories.

2.2 Selecció d'entrada de potència

Before connecting the power supply to a wall outlet, ensure the input voltage switch on the rear panel is set correctly for your region (110V or 220V). Incorrect selection can damage the unit.

posterior view of the power supply with 110V/220V switch — posterior view of the power supply, highlighting the 110V/220V output switch.

2.3 Connecting Output Leads

Connect the provided power output lines to the red (+) and black (-) terminals on the front panel of the power supply. Ensure a secure connection.

3. Instruccions de funcionament

3.1 Encès/Apagat

Press the 'OUTPUT ON/OFF' button on the front panel to turn the power output on or off. The display will show 'OFF' when the output is disabled.

3.2 Ajust del volumtage i Actual

Utilitzeu el 'VOL'TAGE' and 'CURRENT' adjustment knobs to set the desired output voltage and current. The unit features double potentiometers for more precise adjustment. The LED four-digit numerical display shows voltage, current, and power values simultaneously.

Close-up of the LED four-digit numerical display, showing voltage, current, and power values.

Output control knob and lock function — The output control knob allows for flexible control. Long press the output knob to lock/unlock; when locked, only the ON/OFF button is valid.

3.3 Memory Functions (M1, M2, M3)

The LKD series models feature three sets of storage/retrieval data (M1-M3). To store a setting, adjust the voltage and current to the desired values, then long-press the corresponding M1, M2, or M3 button until its indicator light illuminates. To recall a stored setting, lightly press the M1, M2, or M3 button.

M1-M3 buttons for data storage and retrieval — The M1-M3 buttons allow for quick storage and retrieval of three sets of parameter values.

3.4 Over Current Protection (OCP) and Over Voltage Protecció (OVP)

The power supply includes OCP and OVP functions to protect connected circuits. When the actual output value exceeds the preset OCP or OVP limit, the protection function is triggered, and the output is disabled.

Diagram illustrating OCP and OVP protection — Diagram illustrating the full protection function, including OCP (Over Current Protection) and OVP (Over Voltage Protecció).

3.5 Funció de càrrega USB

The unit supports 5V/2A USB charging via a Type-A interface, allowing for fast charging of mobile phones and other devices.

USB charging function illustration — Illustration of the 5V/2A USB charging function, showing a Type-A interface for mobile phone fast charging and multiple device charging.

3.6 Vídeo de demostració operativa

This video demonstrates the output voltage/current numerical adjustment, one-click output function, quick setting parameter value storage, OCP function setting operation, and OVP function setting operation.

4. Manteniment

4.1 Atenció general

Keep the power supply clean and free from dust. Use a soft, dry cloth for cleaning. Avoid using abrasive cleaners or solvents.

4.2 ventilador de refrigeració

The power supply features a temperature-controlled cooling fan. The fan will automatically activate when the internal temperature reaches approximately 50°C to ensure optimal performance and longevity. Ensure the fan vents on the side of the unit are not obstructed.

Intelligent temperature control cooling fan — The intelligent temperature control cooling fan ensures low noise and stable operation even under full load.

4.3 Display Screen Protection

The display screen is covered with a protective film to prevent scratches during shipping and initial use. If you notice any imperfections on the screen, carefully check for and remove this protective film.

5. Solució De Problemes

5.1 No Power Output / Screen Not Displaying

Ensure the power cable is securely connected and the input voltage switch on the rear is set correctly (110V/220V).
If the screen does not display or the unit does not power on upon receipt, contact customer support immediately.

5.2 Current Adjustment Issues

If you are unable to adjust the current, it may be because there is no electronic load connected. To adjust the current, connect an electronic load or create a short circuit between the output terminals (briefly, and with caution) and then adjust the current knob. If issues persist, contact customer support.

5.3 Display Delay After Power Off

Due to the use of high-quality capacitance, there may be a slight delay in the display turning off after the power is cut. This is normal behavior and the screen will turn off completely after a few seconds.

6. Especificacions

The following table details the product parameters for the LODESTAR LKS/LKD series DC Power Supplies:

Detailed product parameter table for the LKS/LKD series.

Paràmetres del producte
Paràmetre	LKS3005	LKS3010	LKD3005	LKD3010	LKD6005	LKD1203
MÀXIM VOLTAGE	30 V	30 V	30 V	30 V	60 V	120 V
CORRENT MÀXIMA	5A	10A	5A	10A	5A	3A
POTÈNCIA MÀXIMA	150W	300W	150W	300W	300W	360W
VOLTAGE
LOAD REGULATION RATE	≤0.1%+5mV
POWER REGULATION RATE	≤0.01%+5mV
DEFINIR LA RESOLUCIÓ	10mV
SET ACCURACY	≤0.1%+5 dígits
READ BACK RESOLUTION	10mV
READ BACK ACCURACY	≤0.1%+5 dígits
RIPPLE	10 mVrms
ACTUAL
LOAD REGULATION RATE	≤0.2%+3mA
POWER REGULATION RATE	≤0.2%+3mA
DEFINIR LA RESOLUCIÓ	1 mA
SET ACCURACY	≤0.2%+10mA
READ BACK RESOLUTION	1 mA
READ BACK ACCURACY	≤0.2%+10digits
RIPPLE	8 mVrms
PROTECCIÓ
MÀXIM VOLTAGE OVP	Vmàx+2V
MAXIMUM CURRENT OCP	Cmax+1A
AMBIENTAL
CONDICIONS DE TREBALL	Temperature: 0-40°C Relative humidity: ≤80% RH
CONDICIONS D'EMMAGATZEMATGE	Temperature: -20-60°C Relative humidity: ≤80% RH
HEAT DISSIPATION METHOD	Refrigerat per aire
FÍSIQUES
PES	1.95 kg
SIZE (BARE METAL)	80 * 150 * 230 (MM)

7. Garantia i Suport

Your LODESTAR DC Power Supply comes with a Warranty Card included in the package. Please refer to the card for specific warranty terms and conditions.

For any questions or assistance during use, please contact customer support. We are committed to providing answers and support for your product.

8. Consells d'usuari

Protecció de pantalla: Remember to remove the protective film from the display screen for optimal clarity.
Ajust actual: Always connect an electronic load or create a temporary short circuit when adjusting the current to ensure proper calibration and functionality.
Funcionament del ventilador: The cooling fan operates automatically based on temperature. This is normal and helps maintain the unit's performance.

Lodestar LKS/LKD Series (LKS3005, LKS3010, LKD3005, LKD3010, LKD6005, LKD1203)