Contact a Rep HTML

Request more information about the cobas® m 511 integrated hematology analyzer.

Please complete the form below to speak with a Roche representative.


Hematology reinvented

Truly Integrated System to Optimize Workflow

The cobas m 511 combines the three separate processes of CBC analysis, slide making and staining, and digital image analysis into one, truly integrated hematology analyzer.

Innovative Bloodhound Technology®

The Bloodhound technology uses multispectral digital analysis to count, classify and image cells. Proprietary stain produces results and images in six minutes

Meaningful Information

CBC results and cell images are presented for technologist review. Standardized images are available for every sample analyzed.

Empowering Expertise

Any abnormal or immature cells are presented first for rapid analysis, allowing technologists to focus on identifying abnormalities versus searching a slide for abnormal cells.

The cobas m 511 in motion

Cellular view

Mechanical view


Bloodhound® Technology

Featuring innovative Bloodhound® technology, the cobas m 511 counts and classifies cells using digital multispectral analysis. The cobas m 511 images individual cells directly. Based on these direct images, the Bloodhound® technology counts, analyzes morphology and then classifies cells in the viewing area to provide a standard Complete Blood Count (CBC), five-part differential, and reticulocyte count.

  • Low sample volume of 30 μl provides complete CBC, differential and digital morphology
  • Unique slide preparation designed to provide consistent distribution of cells supporting cell integrity
  • Digital multispectral imaging utilized for cell counting and classification

Unique slide preparation designed to provide consistent distribution of cells supporting cell integrity

A consistent volume of blood is printed in a uniform pattern on a slide. The printed slide is then transferred to a staining station where modified Romanowsky stains are applied. Upon staining, the slide is fully prepared for automated digital imaging as the basis for cell counting, classification and digital morphology.

Digital multispectral imaging utilized for cell counting and classification

Low-magnification multispectral imaging is first applied to the slide, digitally identifying and counting the RBCs, WBCs and platelets. In addition, randomized locations of 600–700 WBCs are recorded for the differential.

Digital multispectral imaging utilized for cell counting and classification

High-magnification multispectral imaging is then applied to the slide to perform the digital differential, classifying the WBCs into 5 normal groups. Unclassified cells are flagged and presented for user review. Red blood cells are analyzed for volume and hemoglobin content. Platelets are analyzed for volume. Reticulocytes, when ordered, are identified and counted on a second slide.


cobas® m 511 Technical Specifications

Instrument System Fully integrated hematology analyzer
  Methodology Digital multispectral image analysis
At least 100,000 sample data records
  • Abnormal sample results and images maintained for 2 years
  • All sample images retained for up to 30 days
QC data minimum of 10,000 run records
  User interface Apple® iMac® computer
  Physical dimensions
  • Width: 42 in
  • Depth: 31 in
  • Height: 56 in
Monitor & Stand
  • Width: 24 in
  • Depth: 24.5 in
  • Height: 48 in
  Floor space required 113" x 61" (total footprint including clearances)
  Weight Analyzer 858 lbs. Viewing station 13lbs.
  Parameters RBC, HGB, HCT, MCV, MCH, MCHC, RDW, RDW-SD, NRBC%/#, WBC, NEUT%/#, LYMPH%/#, MONO%/#, EO%/#, BASO%/#, PLT, MPV, RET%/#, HGB-RET
  Reagents DigiMAC3 Stain Pack, DigiMAC3 Reticulocyte Stain, DigiMAC3 Slides, DigiMAC3 Wash, DigiMAC3 Clean
  Controls DigiMAC3 Controls (L1, L2, L3)
  Calibrators DigiMAC3 Calibrator
Connectivity System interfaces ASTM interface
  Remote connectivity Up to four additional review stations and two remote stations
  Sample identification Sample ID via download from host, barcode reader, or manual entry
Supported Tube Types K2 or K3 EDTA anticoagulant
Tube Type
Tube Size
BD Vacutainer®
13mm x75mm
13mm x 100mm
13mm x75mm
13mm x 100mm
BD Microtainer® MAP microtube
13mm x 75mm
13mm x 65mm
11mm x 66mm
Supported barcodes   Code 128, Code 39, Interleaved 2 of 5
Testing Parameters

cobas® m 511 Testing Parameters

Red Blood Cell
  • RBC – Red Blood Cell Count
  • HCT – Hematocrit
  • MCV – Mean Corpuscular Volume
  • RDW – Red Cell Distribution Width
  • RDW–SD – Red Cell Distribution Width – Standard Deviation
  • #NRBC – Nucleated Red Blood Cell Count
  • %NRBC – Nucleated Red Blood Cell Percent
  • Hgb – Hemoglobin Concentration
  • MCH – Mean Corpuscular Hemoglobin
  • MCHC – Mean Corpuscular Hemoglobin Concentration
  • PLT – Platelet Count
  • MPV – Mean Platelet Volume
White Blood Cell
  • WBC – White Blood Cell Count
  • #NEUT – Neutrophil Absolute Count
  • %NEUT – Neutrophil Percent
  • #LYMPH – Lymphocyte Absolute Count
  • %LYMPH – Lymphocyte Percent
  • #MONO – Monocyte Absolute Count
  • %MONO – Monocyte Percent
  • #EOS – Eosinophil Absolute Count
  • %EOS – Eosinophil Percent
  • #BASO – Basophil Absolute Count
  • %BASO – Basophil Percent
  • #Retic – Reticulocyte Count
  • %Retic – Reticulocyte Percent
  • HGB-RET – Reticulocyte Hemoglobin

Outside of Pepper mode, this text will be replaced by the resource cards.

Contact Us

Outside of Pepper mode, this text will be replaced by the content added in the above "Contact a Rep HTML" code editor.

There are no available IVD assays for this instrument.