Automated hematology analyzer DxH 900

integrated system5-part differentiationelectrical impedance

Overview
The DxH 900 Workcell (Beckman Coulter) is an automated hematology workcell designed to scale from single‑analyzer setups to multi‑analyzer production lines. It integrates analyzers and optional DxH Slidemaker Stainer II (SMS II) to distribute samples intelligently and support high‑volume clinical laboratory workflows.

Built-in workflow automation

• Scalable automation modules to accommodate growing sample volumes.
• Bi‑directional sample transport to distribute samples automatically between analyzers and reduce bottlenecks.
• Accept STAT samples and body fluids without interrupting routine testing.
• Automated slide preparation and staining based on user‑defined decision rules (SMS II integration).

Integrated data and quality management

• Connect up to three DxH 900 analyzers with one DxH Slidemaker Stainer II to create customized workflows; compatible with DxA 5000 / DxA Fit 5000 automation and REMISOL Advance middleware.
• Database consolidation for order entry and results review (up to 90,000 results) and centralized QC management (30 control files × 150 runs per instrument).
• Load samples at a single input buffer or multiple input buffers regardless of instrument position.
• Manage pre‑ and post‑analytical steps through automation and clinical information systems integration.
• Remote monitoring and service support via PROService with RAP box for proactive alerts and troubleshooting.

Performance highlights

• Scalable throughput: single unit (100 samples/h) to multi‑unit workcells (up to 300 samples/h) and SMS II smears (140 smears/h).
• First‑run accuracy and comprehensive test menu (CBC, differential, retic, MDW when enabled, body fluids).
• Extended walk‑away time and inventory optimization supported by DxH Concentrated ECO Diluent.

Available variants / typical configurations

• DxH 900 (single unit)
• DxH 900-S (DxH 900 + SMS II)
• DxH 900-2 (2 × DxH 900)
• DxH 900-3 (3 × DxH 900)
• DxH 900-2 SMS, DxH 900-3 SMS, DxH 900-3S (3 × DxH 900 with SMS)

Technical specifications

• Workcell footprints & throughput: DxH 900 — 100 samples/hour; DxH 900-2 — 200 samples/hour; DxH 900-3 — 300 samples/hour; DxH SMS II — 140 smears/hour. Example widths: single DxH 900 ~75.57 cm; DxH 900-2 ~152.1 cm; DxH 900-3S ~323.59 cm.
• Clearance: 3.8 cm behind instrument and 15.2 cm per side recommended for cooling.
• Whole blood reportable ranges & precision (examples): WBC 0.050–400.000 ×10^3/µL (<3–5% CV); RBC 0.005–8.500 ×10^6/µL (<1.5% CV); HGB 0.10–25.50 g/dL (<1.5% CV); PLT 3.0–3000.00 ×10^3/µL (<3.5% CV); MCV 50.00–150.00 fL (<1.0% CV).
• Body fluid ranges: TNC 20–89,000 cells/mm3 (<10% CV); RBC 1,000–6,200,000 cells/mm3 (<15% CV).
• Sample aspiration: Whole blood and body fluid; 165 µL aspiration volume; 0.5 mL dead volume. Pre‑dilute X5 mode: 50 µL into 200 µL diluent. SMS: 90 µL for up to 4 smears.
• Methodology: Enhanced Coulter Digital Impedance; 360 VCS with DataFusion.
• Available test menu: CBC (WBC, RBC, HGB, HCT, MCV, MCH, MCHC, RDW, RDW‑SD, PLT, MPV); Differential (NE, LY, MO, EO, BA, MDW, NRBC and absolute counts); Retic (RET, RET#, MRV, IRF); Body fluids (TNC, RBC, @BFM%, @BFP%).
• Reagents & controls: Coulter DxH Diluent, DxH Cell Lyse, DxH Diff Pack, DxH Retic Pack; controls and calibrators (examples provided in product literature). ECO Diluent: 18× concentrated, cyanide‑free, low formaldehyde ≤2 ppm.
• Cleaner: Coulter DxH Cleaner (10 L) — preloaded for autonomous daily cleaning.
• Power: Typical component consumptions (example): DxH 900 SPM 520 W; Monitor 35 W; Server 160 W; SMS II SPM 550 W. Power supply: single‑phase 90–264 Vac, 48–63 Hz.
• Data management: Up to 100,000 patient results with histograms, scatterplots and demographics; database consolidation for results and QC.
• Quality assurance: Levy‑Jennings graphs, XB/XM moving averages, intelligent quality monitoring, customizable calibration and QC alerts; auto export of QC.
• Sample transport & ID: 20 five‑tube cassettes per module (up to 400 samples with DxH 900‑3S). Digital 2D barcode; sample ID up to 22 characters.
• Remote monitoring: PROService remote management with RAP box for walk‑away troubleshooting and preemptive alerts.
• Environmental & compliance: Acoustic noise ~60 dBa. EMC/Immunity: complies with EN 61326‑1 and EN 61326‑2‑6.
• DxH Concentrated ECO Diluent (RPI‑ECO21) key specs: Instrument size ~L775 × W620 × H750 mm; empty weight ~107 kg; dilution by EC‑T; production ~20 L/hr peak, <17 L/hr continuous; two hot‑swappable 10 L cubitainers; onboard memory and USB export.