The DIRUI CS-400 is a fully automatic, high-performance biochemistry analyzer designed for medium to large laboratories. It delivers fast, accurate testing through advanced photometry, precise pipetting, and stable temperature control. It helps labs process a high volume of samples quickly with reliable results.
Key Highlights
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Up to 400 tests/hour throughput
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Dual reagent disk with continuous cooling (5–15°C)
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115 sample positions with STAT priority
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High-precision sampling using ceramic pistons
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Automatic dilution, rerun, clot detection, and volume detection
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12-channel photodiode array for fast multi-wavelength reading
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Low reagent consumption: total reaction volume as low as 150 µL
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Water-degassing technology for ultra-precise pipetting
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Multiple QC functions including Westgard rules
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User-friendly English graphical software
Test Menu
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Colorimetric tests
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Turbidimetric tests
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End-point assays
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Kinetic assays
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Fixed-time assays
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Electrolytes (Na⁺, K⁺, Cl⁻) – optional ISE module
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Supports single, double, and multi-reagent testing
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Compatible with a wide range of clinical chemistry assays
Technical Specifications
| Specification |
Details |
| Type |
Fully automatic, discrete, STAT-priority analyzer |
| Throughput |
400 tests/hour (photometry) |
| ISE Throughput (Optional) |
Up to 400 tests/hour |
| Principles |
Colorimetry, turbidimetry |
| Methods |
End-point, Kinetics, Fixed-time |
| OD Linear Range |
0–3.3 Abs |
| Light Source |
20W/12V long-life lamp, water-cooled |
| Monochromator |
Holographic concave flat-field grating |
| Detector |
12-channel photodiode array |
| Wavelengths |
340, 380, 405, 450, 480, 570, 600, 660, 700, 750 or 800 nm |
| Photometry Technology |
Rear spectrophotometry, cluster-optical path |
| Total Sample Positions |
115 |
| Routine Samples |
50 |
| STAT Samples |
20 |
| Calibration Positions |
34 |
| QC Positions |
8 |
| Supported Tube Size |
Ø12–16 mm × 25–100 mm |
| Sample Volume |
2–35 µL (0.1 µL steps) |
| Functions |
Liquid level detection, clot detection, collision protection, automatic dilution and rerun |
| Reagent Disk |
Double disk, 45 × 2 positions (90 total) |
| Reagent Cooling |
Continuous cooling at 5–15°C |
| Reagent Volume |
20–350 µL (1 µL steps) |
| Reagent Barcode |
Code-128 |
| Reagents per Test |
Up to 4 reagents (R1–R4) |
| Reaction Volume |
150–450 µL |
| Reaction Temperature |
37°C ± 0.1°C |
| Stirring |
2 stirrers, Teflon-coated, flat-paddle design |
| Cuvette |
Long-life rigid plastic, UV-compatible |
| Cuvette Washing |
7 stops, 11-step warm water rinsing |
| Water Degassing |
Built-in degassing device |
| Temperature Control |
PID precision heating |
Product Disclaimer
Specifications and included accessories may vary by production batch, market, or manufacturer revision. Please verify the exact configuration with the seller before purchase. This product information is intended for general product guidance and does not replace professional medical advice, diagnosis, or treatment.
