You might think, “It’s just a centrifuge. You put tubes in, close the lid, and press ‘Start.’” The 5402, however, is a creature of its time. It uses electromechanical buttons, a single-line LCD display, and—crucially—requires specific rotor-bucket-adapter combinations that are no longer intuitive.
The original manual (Part No. 5202 600.010) is a slim, multi-lingual volume (German, English, French, Spanish) that covers three critical areas modern users often overlook:
Based on real service logs, Eppendorf compiled a list of frequent mistakes with the 5402:
Because Eppendorf discontinued the 5402 in the late 1990s, official paper manuals have become rare. Many labs have lost theirs to floods, moves, or the “great lab cleanup of 2005.” Consequently, the digital afterlife of the 5402 manual is fascinating.
A search today reveals:
Eppendorf’s official website no longer hosts the 5402 manual, but their customer service will occasionally email a scanned copy to verified owners—a testament to the company’s long-tail support philosophy.
Understanding how to operate the Eppendorf 5402 correctly is vital for achieving optimal results and ensuring safety in the laboratory.
Rotor Selection and Installation:
1. Introduction 1.1 About this Manual 1.2 Intended Use 1.3 Safety Information (Warning and Precaution Symbols)
2. Product Description 2.1 Scope of Delivery 2.2 Technical Specifications (Voltage, Frequency, Max. RPM/RCF) 2.3 Dimensions and Weight 2.4 Noise Level
3. Installation and Setup 3.1 Site Requirements (Bench space, ventilation) 3.2 Unpacking and Inspection 3.3 Rotor Installation 3.4 Rotor Removal 3.5 Connecting to Power Supply eppendorf 5402 manual
4. Operation 4.1 Control Panel Overview (Display, keys, knobs) 4.2 Switching the Device On/Off 4.3 Loading Rotors (Symmetrical loading, tube selection) 4.4 Setting Parameters (Time, Speed/RCF, Temperature if applicable) 4.5 Starting and Stopping the Centrifuge 4.6 Short Spin (Impulse) Function 4.7 Opening the Lid (Emergency lid release)
5. Rotors and Accessories 5.1 Available Rotors (Fixed-angle, Swing-bucket – if any) 5.2 Maximum Load and Speed per Rotor 5.3 Adapters and Buckets 5.4 Rotor Life and Replacement
6. Maintenance and Cleaning 6.1 Cleaning the Centrifuge (Housing, chamber) 6.2 Cleaning Rotors and Accessories 6.3 Decontamination (Chemical resistance) 6.4 Maintenance Schedule 6.5 Lubrication (Rotor drive bolt, O-rings)
7. Troubleshooting 7.1 Error Messages (Display codes) 7.2 Centrifuge does not start 7.3 Imbalance shutdown 7.4 Lid does not open 7.5 Unusual noise or vibration 7.6 Service Contact
8. Disposal 8.1 Disposal of the Centrifuge (WEEE directive) 8.2 Disposal of Contaminated Parts
9. Warranty and Service 9.1 Warranty Terms 9.2 Original Spare Parts 9.3 Customer Service Contact
10. Appendix 10.1 RCF Conversion Chart (RPM to xg) 10.2 Quick Reference Card (Operation steps) 10.3 Declarations of Conformity (CE, etc.)
Note: The Eppendorf 5402 is a discontinued model (often replaced by the 5424 series). If you need an original PDF of the manual, check:
The Eppendorf Centrifuge 5402 is a classic, high-performance refrigerated microcentrifuge designed for the rapid separation of liquid substance mixtures. Whether you have recently acquired a pre-owned unit or are looking to maintain an existing one, understanding the technical specifications and operational requirements is essential for lab safety and sample integrity.
While this unit has been succeeded by newer models like the 5415R or 5424R, the 5402 remains a workhorse in many molecular biology and biochemistry labs due to its robust build and reliable cooling system. Technical Specifications and Capabilities You might think, “It’s just a centrifuge
The 5402 is designed for high-speed applications involving microtubes. Key performance metrics include: Maximum Speed: 14,000 RPM. Maximum RCF: 15,800 x g. Temperature Range: -9°C to +40°C. Timer Range: 0 to 99 minutes or continuous run.
Rotor Capacity: Typically holds a 12, 18, or 24-place fixed-angle rotor for 1.5/2.0 mL tubes. Safety Guidelines and Installation
Before powering on the unit, ensure the centrifuge is placed on a level, stable surface. Adequate ventilation is required, especially for the cooling fans located at the rear and sides of the machine.
Always ensure the rotor is securely fastened to the motor shaft using the provided rotor key.
Never operate the centrifuge without a properly balanced load. Even a weight difference of 0.1g between opposite tubes can cause excessive vibration.
Check the lid gasket regularly to ensure a proper vacuum seal for cooling efficiency. Operating Instructions
Operating the Eppendorf 5402 is straightforward, utilizing an analog-digital hybrid interface.
Power On: Use the main switch located on the side or rear of the unit.
Set Temperature: Adjust the temperature dial to your desired setting. For sensitive samples (like DNA/RNA), it is recommended to "Pre-Cool" the centrifuge by running it empty at the target temperature for 10 minutes.
Load Rotor: Place tubes symmetrically. If running an odd number of samples, use a balance tube filled with water. Set Speed and Time: Adjust the RPM and Time dials. Start: Close the lid firmly and press the "Start" button. Because Eppendorf discontinued the 5402 in the late
Braking: The centrifuge will automatically decelerate when the timer reaches zero. Most 5402 models feature a "Short" button for quick pulses. Maintenance and Troubleshooting
Routine maintenance extends the life of the 5402 significantly.
Cleaning: Use a mild detergent and 70% isopropyl alcohol to wipe down the rotor chamber and the rotor itself. Avoid aggressive chemicals that could corrode the aluminum.
Defrosting: If ice builds up in the chamber, leave the lid open and allow it to melt. Wipe away excess water to prevent motor damage.
Error Codes: If the unit displays an error or fails to spin, check the carbon brushes (in older models) or the lid latch sensor. Finding the Full PDF Manual
Because the 5402 is a legacy product, Eppendorf may no longer host the manual on their primary homepage. However, digital archives and lab equipment repositories often carry the full technical manual, which includes wiring diagrams and detailed parts lists.
To keep your lab compliant with GLP (Good Laboratory Practice), it is highly recommended to print a physical copy of the manual and keep it in a binder near the workstation for all users to reference.
If you tell me the specific error code or mechanical issue you're facing, I can provide the exact troubleshooting steps from the technical documentation.
The Eppendorf 5402 manual serves as a comprehensive guide for the operation, maintenance, and troubleshooting of this versatile laboratory centrifuge. By following the instructions and guidelines provided, users can ensure optimal performance, safety, and longevity of the device. Always refer to the manual for specific details and updates.
The Eppendorf 5402 primarily uses Rotor F-45-18-11 (fixed-angle, 18-place for 1.5/2.0 mL tubes) and Rotor A-8-11 (for 8-tube PCR strips). The manual provides diagrams showing exactly how to seat the rotor onto the motor shaft. Important rules from this section:
Before diving into the manual, it's essential to familiarize yourself with some key features and specifications of the Eppendorf 5402: