JOANLAB Centrifuge Machine LC-500 User Manual

1. Introduction

This manual provides detailed instructions for the safe and efficient operation of the JOANLAB LC-500 low-speed benchtop centrifuge. Please read this manual thoroughly before use to ensure proper function and longevity of the instrument.

2. Safety Precautions

Adhering to the following safety guidelines is crucial for preventing injury and damage to the equipment.

• The rotor must always be securely fixed. If the centrifuge produces an abnormal sound during startup, indicating improper rotor fixation, press the "START / STOP" button immediately to halt operation.
• Do not operate the centrifuge with damaged rotors (e.g., broken, scratched, corroded, rusted). Ensure the machine remains stationary during operation.
• This instrument is designed for indoor use only.
• Operating altitude should not exceed 2000 meters.
• The recommended operating temperature range is +5°C to +40°C.
• The applicable humidity range for the instrument is ≤80%.
• Ensure the operating area is free from excessive vibration and airflow that could affect performance.
• The machine features a vibration protection function: if vibration exceeds a safe range during operation, power will automatically cut off to protect samples and the unit.
• A dual electronic lock design ensures the machine lid automatically unlocks only at the completion of an experiment.

Image: Over-temperature protection and external cooling system.

3. Technical Specifications

Image: Technical specifications of the LC-500 centrifuge.

4. Product Overview and Components

The JOANLAB LC-500 centrifuge features a robust design with essential components for laboratory use.

Image: Front view of the LC-500 centrifuge.

Control Panel Details

Image: Detailed view of the control panel.

1. Program memory key (P)
2. Adjustment key (Menu)
3. Increment key (Up arrow)
4. Decrement key (Down arrow)
5. Start/Stop key
6. Open lid key

The digital display provides information including: 7. Remaining time, 8. Setting time, 9. Timing, 10. Program number, 11. SAFE marking, 12. Open lid tip, 13. Running status, 14. Over temp protection, 15. Running speed, and 16. Setting speed.

Key Features

Image: Product detail diagram highlighting key features.

• Dual E-lock: Enhances safety by preventing the lid from opening during operation.
• Visual Window: Allows observation of the rotor during centrifugation.
• External Circulation Heat Emission Hole: Facilitates cooling and prevents overheating.
• Operation Panel: Intuitive interface for setting parameters.
• Angle Rotor: Multi-specification rotor for various tube sizes.
• Emergency Switch: For immediate power cut-off if needed.

5. Setup

Before initial use, ensure the centrifuge is placed on a stable, level surface away from direct sunlight and heat sources. Ensure adequate ventilation around the unit to allow for proper heat dissipation.

Rotor Installation and Tube Compatibility

The centrifuge is equipped with a rotor that accommodates various tube sizes using specific adapters.

Image: Rotor capacity and tube adapter configurations.

• 50ml Centrifuge Tubes: Can be used directly in the rotor (up to 6 tubes).
• 15ml/10ml/5ml Centrifuge Tubes: Require appropriate adapters for secure placement (up to 6 tubes).
• 2ml/5ml/10ml Vacuum Collection Tubes: Require specific adapters for proper fit (up to 6 tubes).

Always ensure tubes are balanced symmetrically in the rotor before centrifugation to prevent vibration and potential damage to the machine. Securely fix the rotor and close the lid before initiating any operation.

6. Operating Instructions

Basic Operation

1. Place balanced tubes into the rotor, ensuring they are securely seated.
2. Close the lid firmly. The dual E-lock mechanism will engage automatically.
3. Press the 'MENU' key (2) to access the parameter settings. Use the Increment (3) and Decrement (4) keys to adjust the desired speed (RPM) and centrifugation time.
4. Press the 'START/STOP' key (5) to begin the centrifugation cycle.
5. Once the cycle is complete, the machine will automatically unlock the lid. Press the 'OPEN' key (6) to open the lid and retrieve your samples.

Image: Centrifuge in operation, demonstrating adjustable speed and timing control.

Program Memory Function

The LC-500 allows storage of up to 9 programs for frequently used centrifugation settings, enabling quick recall and consistent results.

Image: Demonstrating the program memory function.

1. Press the 'P' key (1) to enter program setting mode.
2. Use the 'MENU' key (2) and arrow keys (3, 4) to set the desired speed and time for the program.
3. Once the settings are finalized, the program will be automatically memorized for future quick access.

7. Maintenance

Regular maintenance ensures the longevity and optimal performance of your centrifuge. Always disconnect the power supply before performing any maintenance.

• Cleaning: Wipe the exterior and rotor cavity with a soft, damp cloth after each use. A mild detergent can be used if necessary. Avoid abrasive cleaners, solvents, or harsh chemicals that could damage the surfaces.
• Rotor Care: Periodically inspect the rotor for any signs of damage, such as cracks, scratches, or corrosion. A damaged rotor must be replaced immediately to ensure safe operation.
• Ventilation: Ensure that the ventilation holes on the centrifuge are clear of dust and debris to maintain proper cooling and prevent overheating.
• Storage: When not in use, store the centrifuge in a dry, clean, and temperature-controlled environment.

8. Troubleshooting

Refer to the table below for common issues and their solutions.

9. Applications

The JOANLAB LC-500 centrifuge is a versatile instrument suitable for various applications in clinical medicine, biochemistry, PRP cosmetic procedures, blood stations, and general laboratory research.

Image: Diverse applications of the LC-500 centrifuge.

Typical Centrifugation Parameters for Various Fields:

• Medical Field:
  • Centrifugation of blood samples: Typically requires 3,000 rpm for approximately 10 minutes.
  • Centrifugation of urine samples: Typically requires 1,800 rpm for approximately 5 minutes.
  • Centrifugation of faecal samples: Typically requires 1,000 rpm for approximately 10 minutes.
• Cosmetic, Dental (PRP/PRF/CGF applications):
  • PRP application: Usually 3000-3500 rpm for 5 minutes. Multiple centrifugations may be carried out.
  • PRF application: Usually 2000-3000 rpm for 7 minutes, single centrifugation completed.
  • CGF application: Usually consists of 3 or 4 steps of variable speed centrifugation.
• Vegetable or Food:
  • Centrifugation of samples for testing: Usually requires 4000 rpm for approximately 5 minutes.
• Biology Lab:
  • Centrifugation of cell cultures: Usually several hundred g-force (relative centrifugal force), a low-speed horizontal rotor is recommended for this.

10. Warranty and Support

The JOANLAB LC-500 centrifuge comes with a 1-year warranty from the date of purchase. For any questions, technical assistance, or support needs, please contact JOANLAB customer service.

Manufacturer: JOANLAB

Place of Business: JOAN LAB EQUIPMENT(ZHEJIANG) CO.,LTD Add: 181 gangfeng road | huzhou city (near shanghai)|zhejiang province |China

11. Product Videos