Thermo Scientific HERAEUS Multifuge 3S Plus
Thermo Scientific · Model HERAEUS Multifuge 3S Plus
Unmatched versatility, exceptional throughput - Nine swinging-bucket rotor configurations and seven fixed-angle rotors give the Heraeus Multifuge 3 Plus Series unmatched versatility, making it a cost-effective investment for any lab. Unsurpassed productivity with high-capacity accessories - New carbon fiber rotors from FIBERLite® provide an advanced alternative to traditional metal rotors. Enhanced user and sample safety - The SMARTspin® imbalance detection system allows for eye balancing of samples with automatic termination of a run if excessive imbalance occurs. Modular, ergonomic design - The low deck height - just 31cm high - allows for easy loading and unloading of samples. The unique soft-touch lid effortlessly clicks into place for worry-free centrifugation. User-friendly operation - The EASYset™ soft-touch keypad allows for one-touch control of speed, programming and pre-cooling functions. Exceptional reliability -The brushless induction drive system guarantees years of dependable performance with minimal maintenance along with whisper-quiet operation and powerful acceleration and braking. A bright, easy-to-read LED display allows easy monitoring from across the lab. Automatic rotor recognition ensures precise rotor performance while preventing the use of incorrect accessories or parameters. Lightweight and easy to handle, these rotors generate less wear on the centrifuge motor and are resistant to corrosion, fatigue and repeated autoclaving. Spin up to 14 x 50 ml conical tubes in a single run. Achieve superspeed performance with RCFs over 24,000 x g on the benchtop. Safely perform high RCF, single-step separations using sterile, disposable conical tubes. Rotor systems designed to handle up to 108 x 5/7 ml blood collection tubes, 28 x 50 ml conical tubes or 6 x 250 ml bottles in a single run allow you to achieve greater levels of productivity.
Key tips
- ·Run QC controls before trusting any repair - an analyzer that passes self-test can still report clinically wrong results.
- ·Rule out a reagent lot change before opening the instrument - it can look exactly like a hardware fault.
- ·Centrifuge rotors have a hard retirement age/cycle limit regardless of visible condition - don't eyeball it.
Typical Failure Modes
Compiled for this model from its own documentation and established engineering knowledge for this equipment class - not from a verified service record. Confirm against the manufacturer's service manual.
Will not start / error at start
HighSymptoms: Error code, run will not begin, or aborts shortly after start.
Root cause: Set speed exceeds the rotor maximum, an imbalanced load, the lid / door not locked, an unapproved rotor, or a drive / control fault.
Will not reach speed / excessive noise or vibration
MediumSymptoms: Slow spin-up, rumble, or vibration during a run.
Root cause: Load imbalance, worn drive / motor bearings, a worn drive coupling, or (older units) worn motor brushes.
Timer / speed inconsistency
MediumSymptoms: Run ends early / late, or RPM does not match the setting.
Root cause: Tacho / speed-sensor drift or a control-board fault.
Lid / door will not open or lock
MediumSymptoms: Lid-lock error, will not open after a run, or will not lock to start.
Root cause: Lid-lock solenoid / switch fault, or a run still winding down.
Rotor / bucket wear or corrosion
MediumSymptoms: Visible corrosion, cracks, or a bucket that will not swing; imbalance trips.
Root cause: Rotor / bucket ageing - a safety-critical wear item with a use-life limit.
Serviceable Parts & Consumables
Serviceable items for this model, compiled from its documentation and engineering knowledge for this equipment class. Service class and relative cost are estimates, not manufacturer figures; no part numbers are given. Confirm intervals and pricing against the manufacturer.
Drive / motor bearings & coupling
Class Major service partRel. cost $$$R&R Difficult
Lid-lock solenoid / switch
Class Major service partRel. cost $$R&R Moderate
Speed sensor / control board
Class Major service partRel. cost $$R&R Moderate
Motor brushes (older units)
Class Periodic replacementRel. cost $R&R Moderate
Rotor / bucket set & O-rings
Log rotor runs; retire per the manufacturer's rotor-life programme.
Class Major service partRel. cost $$$R&R Easy
| Part | Service class | Relative cost | R&R difficulty |
|---|---|---|---|
| Drive / motor bearings & coupling | Major service part | $$$ | Difficult |
| Lid-lock solenoid / switch | Major service part | $$ | Moderate |
| Speed sensor / control board | Major service part | $$ | Moderate |
| Motor brushes (older units) | Periodic replacement | $ | Moderate |
| Rotor / bucket set & O-rings Log rotor runs; retire per the manufacturer's rotor-life programme. | Major service part | $$$ | Easy |
Relative cost: $ lowest · $$$$ highest service-part cost for this equipment class. Not a price.
PM Checklist
Preventive-maintenance tasks typical of this equipment class. Perform to the manufacturer's procedure and your facility's policy - this is general reference, not a schedule for this specific unit.
- ·Daily QC controls run and reviewed
- ·Calibration verification per assay
- ·Routine cleaning and decontamination
- ·Scheduled reagent-path and pump-tubing maintenance
Troubleshooting Approach
A starting sequence for this model, compiled from its documentation and engineering knowledge for this equipment class. Follow the manufacturer's service documentation for the actual procedure.
Symptom: Will not start or errors at start
- Confirm the set speed does not exceed the fitted rotor's maximum and the rotor is approved and seated.
- Rebalance the load - opposing positions evenly loaded and paired.
- Confirm the lid / door latches and the lock engages.
- Look the fault code up in the manual and follow the remedy.
- Functional-check speed and timer after any repair.
Symptom: Noisy / vibrates / will not reach speed
- Rebalance and re-run empty to confirm.
- Spin the rotor by hand and feel for bearing roughness.
- Inspect the drive coupling and (older units) the motor brushes.
- Replace the worn component.
- Verify speed with a tachometer and confirm smooth running.
Technical Specs
- Height
- 14.3 in
- Length
- 26.2 in
- Orientation
- Benchtop
- Weight
- 1 lbs
- Maximum Speed
- 4350 rpm
- Width
- 21.7 in
Typical Location
Where this class of equipment is typically deployed - general reference, not this unit's own placement record.
- Central / core laboratory
- Point-of-care testing stations
- Blood bank
- Microbiology lab
Documents & Manuals
No documents available for this device yet.
Related calculators
From BioLab, for work done with this kind of equipment.
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