The Eppendorf 5402 is a legacy refrigerated microcentrifuge designed for temperature-sensitive samples in molecular biology and clinical research. Since this model is no longer in production, "updated" information typically refers to newer maintenance protocols or current digital archives of the original manual. Core Specifications & Features
The 5402 was built for reliability with a small benchtop footprint:
Performance: Variable speeds up to 14,000 RPM (approx. 16,000 x g).
Capacity: Typically equipped with the F-45-18-11 rotor, holding (18) 1.5 mL or 2.0 mL tubes.
Temperature Range: Cools from -9°C to 40°C. It features a "Fast Cool" function that can reach 4°C within 10 minutes.
Controls: Digital readout for time (1–99 minutes), speed, and temperature. Operational Guidelines
For safe operation, follow these standard procedures found in Eppendorf's historical documentation: Eppendorf 5402 Refrigerated Centrifuge - G-M-I, Inc.
Eppendorf 5402 is a refrigerated microcentrifuge that has largely been superseded by newer models like the Centrifuge 5420
. Because it is a legacy model, updated "deep reports" or manuals often focus on maintenance, troubleshooting common error codes, and finding compatible replacement parts. Core Specifications & Features
The 5402 is designed for high-speed centrifugation of microtubes (typically 1.5 mL to 2.0 mL) under temperature-controlled conditions. Temperature Range : Adjustable from -9°C to +40°C. Maximum Speed
: Typically reaches up to 14,000 RPM (approx. 16,000 x g), depending on the rotor. Cooling System
: Features a CFC-free refrigeration system with a "Fast Cool" function to pre-chill the rotor chamber. : Can be set for short runs or continuous operation. Operational Highlights Rotor Installation
: Ensure the rotor is properly seated on the drive shaft and the knurled nut is tightened securely. Lid Mechanism eppendorf 5402 manual updated
: If the lid is locked during a power failure, most units have a manual emergency release (often a hidden pull-cord or pin access).
: The unit includes an imbalance sensor and an automatic lid lock that prevents opening while the rotor is spinning. National Institute of Standards and Technology (.gov) Troubleshooting & Maintenance
Modern service updates for legacy Eppendorf centrifuges highlight these common issues:
: Usually indicates a converter overload, a defective brake, or a loose rotor
. If this occurs, wait 5 minutes before restarting and ensure the rotor is tightened. Error 3 / Error 23
: Relates to rotor recognition. Ensure a compatible rotor is installed and try power-cycling the device.
: Use a damp, lint-free cloth with diluted neutral detergents or alcohol. Avoid caustic chemicals that can corrode the aluminum rotor. Condensation
: In refrigerated models, keep the lid open after use to allow moisture in the chamber to evaporate, preventing ice buildup and motor strain. Official Documentation Access
For the most current technical updates, safety declarations (such as EU Regulation 2017/746 ), and discontinued part notices, visit the Eppendorf Download Center solution or a list of compatible rotors for your 5402? Centrifuge 5420 - Eppendorf
The Eppendorf 5402 is a legacy refrigerated microcentrifuge designed for high-performance separation of temperature-sensitive samples in molecular biology and clinical research. While this specific model has been largely succeeded by newer iterations like the Centrifuge 5420, maintaining an updated manual and protocol is essential for labs still utilizing this reliable workhorse. Technical Specifications and Capabilities
The Eppendorf 5402 is optimized for 1.5 mL and 2.0 mL tubes, offering precise control over speed and thermal conditions.
Speed Range: Adjustable from 0 to 14,000 RPM in 100 RPM increments. Maximum RCF: Up to Temperature Control: A broad cooling range from -9∘Cnegative 9 raised to the composed with power C 40∘C40 raised to the composed with power C The Eppendorf 5402 is a legacy refrigerated microcentrifuge
Fast Cooling Function: Capable of dropping the rotor chamber from 20∘C20 raised to the composed with power C 4∘C4 raised to the composed with power C in approximately 10 minutes.
Rotor Capacity: Standard F-45-18-11 rotor accommodates 18 tubes (1.5 mL or 2.0 mL) at a 45∘45 raised to the composed with power
Timer: Digital controls allow for run times between 1 and 99 minutes, plus a momentary "Short" spin mode. Operational Guidelines
To ensure sample integrity and equipment longevity, follow these core operational steps based on official Eppendorf safety standards:
Symmetrical Loading: Always load the rotor symmetrically to prevent imbalance, which can cause severe mechanical damage.
Lid Security: Ensure the rotor and rotor lid are fastened securely before starting a run.
Chemical Limits: Do not centrifuge liquids with a density higher than
Soft Start/Stop: Utilize the "Soft" mode for sensitive samples to prevent resuspension during acceleration or deceleration. Maintenance and Troubleshooting
Regular maintenance is the primary way to prevent common errors, such as sensor failures or rotor detection issues. Eppendorf 5417R Refrigerated Centrifuge - Acme Revival
Error 3: No rotor detected. Solution is to insert the rotor. Acme Revival Centrifuge 5420 - Eppendorf
Here are a few options for a social media post, depending on the platform and your audience.
| Rotor type | Part number | Capacity | Max RCF | Notes | |------------|-------------|----------|---------|-------| | F-45-30-11 (fixed) | 5402 300.008 | 30×1.5/2.0 mL | 16,873 × g | Standard | | A-8-11 (swing-out) | 5402 310.005 | 8×1.5/2.0 mL | 6,624 × g | For gentle pelleting | | A-24-11 (swing-out) | 5402 320.002 | 24×1.5/2.0 mL | 4,640 × g | Max 4,000 rpm recommended | By keeping the updated manual close and following
Document Purpose: To serve as a practical supplement to the original Eppendorf 5402 instruction manual (cat. no. 5402 000.010). This guide incorporates current safety standards, rotor care protocols, and troubleshooting insights not detailed in the original 1990s publication.
This section is critical in the deep paper analysis, as improper maintenance is the primary cause of failure in these units.
The Eppendorf 5402 manual updated is not a myth, but it is fragmented. Here is your immediate action plan:
By keeping the updated manual close and following its revised safety protocols, your Eppendorf 5402 can continue to spin reliably for another decade.
Have a specific question not covered here? Search the official Eppendorf Technical Support forum using the tag #Eppendorf5402Update or contact their legacy equipment team directly – they still support this legendary centrifuge.
Disclaimer: This article is a user-generated guide intended to supplement the official manufacturer documentation. Always refer to the original Eppendorf safety instructions before performing maintenance or operation. Eppendorf and 5402 are registered trademarks of Eppendorf AG.
Based on your request for a "deep paper" regarding the Eppendorf 5402 Manual (Updated), this document represents a comprehensive technical analysis and operational synthesis of the Eppendorf 5402 centrifuge series.
While the Eppendorf 5402 is a legacy model (often succeeded by the 5424 and 5430 series), it remains a staple in many laboratories. The "updated" manual typically refers to the later technical documentation releases (often identified by order number 5402 300.310-xx or similar variants issued in the early 2000s) which superseded the original operating instructions, specifically addressing safety interlocks and motor maintenance.
Below is a deep technical overview derived from the updated technical documentation.
As of 2026, Eppendorf no longer actively hosts the full 150-page original manual due to the model being "phase-out legacy." However, they provide a condensed "Operating Instructions Update" (PN 5402-999-00) – a 22-page critical safety addendum. This is the definitive updated document.
Warning: Avoid third-party PDF repositories. Many host a corrupted or pre-2005 version that lacks critical rotor life warnings.