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
Failure patterns typical of this equipment class - general BMET reference, not verified against this exact unit's own service history unless flagged. Severity is a category-level estimate.
Sample probe / pipette clog
MediumSymptoms: Aspiration error, short sample, carryover.
Root cause: Clot/crystal obstruction.
Centrifuge imbalance / bearing
HighSymptoms: Vibration, loud noise, stop error.
Root cause: Worn bearing or unbalanced rotor.
Temperature control fault
MediumSymptoms: Incubator out of range.
Root cause: Failed heater/fan or sensor.
Optics / lamp degradation
LowSymptoms: Low signal, wavelength drift.
Root cause: Lamp/LED or monochromator aging.
Serviceable Parts & Consumables
The parts a BMET typically services on this class of equipment. Service class and relative cost are general engineering estimates for the category, not figures from this unit's documentation. Part numbers appear only when pulled from this unit's own service manual. Always confirm intervals and pricing against the manufacturer.
Sample aspiration probe
Frequent R&R on high-throughput analyzers.
Class Periodic replacementRel. cost $$$R&R Moderate
Peristaltic pump tubing
Consumable - replace proactively.
Class Frequent wear itemRel. cost $R&R Easy
Xenon / LED light source
Class Periodic replacementRel. cost $$$R&R Moderate
Centrifuge rotor & bearings
Class Major service partRel. cost $$$R&R Difficult
| Part | Service class | Relative cost | R&R difficulty |
|---|---|---|---|
| Sample aspiration probe Frequent R&R on high-throughput analyzers. | Periodic replacement | $$$ | Moderate |
| Peristaltic pump tubing Consumable - replace proactively. | Frequent wear item | $ | Easy |
| Xenon / LED light source | Periodic replacement | $$$ | Moderate |
| Centrifuge rotor & bearings | Major service part | $$$ | Difficult |
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 structured starting point derived from the failure modes above. Follow the manufacturer's service documentation for the actual procedure.
Symptom: Sample probe / pipette clog
- Confirm the presentation - typically aspiration error, short sample, carryover - and note the exact alarm or message and the conditions when it occurs.
- Check the most likely cause first: clot/crystal obstruction.
- Isolate the affected subsystem using the manufacturer's functional check or self-test, where one is provided.
- If the fault is confirmed and not a field adjustment, service or replace the sample aspiration probe per the manufacturer's service documentation.
- Return the device to service only after the manufacturer's functional and applicable electrical-safety checks pass.
- Record the findings, any parts used, and the verification results in the maintenance history.
Symptom: Reagent / wash flow fault
- Confirm the presentation - typically clogs, high blank, QC fail - and note the exact alarm or message and the conditions when it occurs.
- Check the most likely cause first: pump tube wear, air in line.
- Isolate the affected subsystem using the manufacturer's functional check or self-test, where one is provided.
- If the fault is confirmed and not a field adjustment, service or replace the peristaltic pump tubing per the manufacturer's service documentation.
- Return the device to service only after the manufacturer's functional and applicable electrical-safety checks pass.
- Record the findings, any parts used, and the verification results in the maintenance history.
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.
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