Eppendorf 5402 Manual Updated (2026)

Short summary piece: "Eppendorf 5402 Manual — Updated"

The Eppendorf 5402 is a compact, electronic single-channel pipette widely used for life‑science labs requiring precise low-volume liquid handling (0.5–10 µL, 2–20 µL, 10–100 µL, or 20–200 µL models). An updated manual clarifies operation, maintenance, calibration, troubleshooting, and safety to reduce user error and extend instrument life.

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 eppendorf 5402 manual updated

. If this occurs, wait 5 minutes before restarting and ensure the rotor is tightened. Error 3 / Error 23 Short summary piece: "Eppendorf 5402 Manual — Updated"

Key Features of the Eppendorf 5402

Below is a deep technical overview derived from the updated technical documentation. Warning: The original manual understates this risk

Temperature Control: Adjustable from -4°C to 40°C (some documentation indicates a range down to -9°C).

Key updates in the manual

• Safety & compliance: Expanded warnings about biohazard handling, electrical safety, and CE/UL conformity statements; clearer disposal instructions for batteries and plastic parts.
• Unboxing & setup: Step‑by‑step setup with images: battery insertion, tip attachment/removal, initial tip ejection check, and ergonomic grip guidance.
• Operating modes: Detailed descriptions of operating functions (aspirate/dispense, reverse pipetting technique, multi‑dispense if applicable), button functions, and volume setting with torque/lock notes to prevent accidental changes.
• Calibration & accuracy specs: Updated calibration procedure, recommended recalibration interval, and performance tables showing accuracy and precision across volume ranges; guidance for in‑lab verification using gravimetric testing and recommended weights for check volumes.
• Maintenance & cleaning: Routine maintenance schedule, disassembly for cleaning (handle, nozzle, seals), compatible cleaning agents, and lubrication points; replacement part numbers for common wear items (O‑rings, pistons, tip cones).
• Troubleshooting: Expanded fault list with causes and fixes (e.g., inconsistent volume, air bubbles, dripping, high ejection force), plus when to contact service.
• Battery & power: Battery type, expected battery life under typical use, low‑battery indicators, and safe disposal/replacement instructions.
• Accessories & consumables: Recommended tip brands/types, compatibility notes, and part numbers for spare tip cones and seals.
• Regulatory & traceability: Section for service history logging, calibration stickers/labels, and recommended documentation practices for GLP compliance.
• Illustrations & quick‑reference guide: More annotated diagrams and a one‑page quick start card for bench use.

Part 1: Why an "Updated" Manual Matters for the 5402

If you are using the original 1990s or early 2000s instruction booklet, you are likely missing critical updates. Since the centrifuge’s production ceased, Eppendorf has released several technical information sheets (TI sheets) and safety updates that supersede the original manual.