The Beckman Coulter DXI 800 is a fast, fully automated immunoassay analyzer designed for large clinical laboratories. Built to support high sample volumes and a broad test menu, it delivers reliable, accurate results while saving time and labor. With advanced automation, continuous loading, and walk away operation, the DXI 800 is a trusted tool for labs that need to work quickly and efficiently.

In this article, you'll learn about the key features, benefits, and reasons why the DXI 800 is one of the top choices for large-scale immunoassay testing.

What Is the Beckman Coulter DXI 800?

The DXI 800 is a high-capacity immunoassay system that runs chemiluminescent tests to measure proteins, hormones, infectious disease markers, and more in human serum or plasma. It uses LOCI technology (Luminescent Oxygen Channeling Immunoassay) to ensure fast and sensitive signal detection with minimal interference.

Labs that process hundreds or thousands of samples daily use the DXI 800 for its speed, accuracy, and ability to run many tests at once.

Key Features of the DXI 800

1. Exceptional Throughput

The DXI 800 can perform up to 400 tests per hour, making it ideal for busy labs and diagnostic centers. This high throughput helps reduce turnaround time and manage daily test volume more effectively.

2. Broad Immunoassay Menu

This analyzer supports over 120 assays, including:

• Hormone panels (TSH, Testosterone, Estradiol, LH, FSH)
  
  

• Cardiac markers (Troponin I, CK-MB, BNP)
  
  

• Infectious disease screening (HIV, Hepatitis B & C, Rubella)
  
  

• Tumor markers (PSA, CA 125, AFP, CEA)
  
  

• Vitamin and nutritional tests (Vitamin D, B12)
  
  

• Thyroid function and fertility tests
  
  

• Therapeutic drug monitoring (TDM)
  
  

This allows labs to serve multiple departments and specialties using a single platform.

3. Continuous and Random Access Loading

The system allows random access testing and continuous loading of samples, reagents, and consumables. Labs don’t need to stop the analyzer to add high-priority or STAT samples.

4. Smart Sample Management

The DXI 800 features:

• High-capacity sample carousel
  
  

• Barcoded sample identification
  
  

• Automatic rerun and dilution
  
  

• Minimal sample volume requirements (great for pediatric use)
  
  

These capabilities improve accuracy and reduce manual work.

5. Advanced LOCI Technology

Beckman Coulter’s LOCI detection system provides:

• Fast and precise light-based signal measurement
  
  

• High sensitivity, even for low-concentration biomarkers
  
  

• Reduced background interference
  
  

• Consistent and reproducible results
  
  

6. Easy-to-Use Software

The user interface includes:

• Touchscreen display
  
  

• Real-time test monitoring
  
  

• Automated alerts for reagent levels, maintenance, and QC
  
  

• Data integration with LIS (Laboratory Information System)
  
  

Benefits of the DXI 800 in High-Volume Labs

High-Speed Testing

With 400 tests/hour capability, the DXI 800 speeds up lab turnaround times, especially during peak hours. This helps hospitals and reference labs meet clinical deadlines and improve service levels.

Efficient Workflow

Features like auto-rerun, reflex testing, and real-time QC tracking help streamline operations. Lab staff spend less time managing the instrument and more time focusing on test interpretation and reporting.

Increased Productivity

The system supports walkaway operation—technicians can load samples and leave the analyzer to do the work. This increases throughput without increasing staffing.

Accuracy and Consistency

Backed by Beckman Coulter’s precision engineering and LOCI detection, the DXI 800 delivers lab-grade accuracy every time. QC management tools help ensure consistent, high-quality results.

Scalable Lab Integration

The DXI 800 can be used as a standalone analyzer or as part of Beckman Coulter's automation systems. This gives large labs the flexibility to scale testing capacity based on current and future needs.

Common Use Cases

The DXI 800 is widely used in:

• Large hospital laboratories
  
  

• National diagnostic labs
  
  

• Specialty clinics (cardiology, endocrinology, oncology)
  
  

• Public health screening programs
  
  

• Academic and research centers
  
  

Its versatility makes it useful for both high-throughput daily testing and specialized biomarker analysis.

What to Consider Before Buying

Thinking about adding the DXI 800 to your lab? Here are some important points:

• Sample volume: Ideal for labs processing 500–1,500 samples per day
  
  

• Space requirements: Ensure adequate space for the system and consumables
  
  

• Reagent supply: Verify access to Beckman Coulter assay kits and consumables
  
  

• Staff training: Minimal learning curve, but vendor training is recommended
  
  

• Service and support: Choose certified providers who offer installation, warranty, and on-site service
  
  

New or Refurbished DXI 800?

The DXI 800 is available in both new and certified refurbished models. Refurbished systems are tested and restored to original specs, offering:

• Cost savings (up to 50% less than new)
  
  

• Updated software and interfaces
  
  

• Warranty and service packages
  
  

• Full installation and training
  
  

Refurbished DXI 800 analyzers are a great choice for labs needing top-tier performance on a limited budget.

Final Thoughts

The Beckman Coulter DXI 800 offers powerful, reliable, and high-speed immunoassay testing for large and growing laboratories. With a broad menu, fast throughput, and fully automated features, it helps labs improve productivity, accuracy, and patient care.

Whether you're expanding your lab or replacing an older system, the DXI 800 delivers clinical-grade performance with flexibility and efficiency—making it a smart long-term investment for any high-volume diagnostic setting.