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| Brand | Keyuan Instruments |
|---|---|
| Origin | Jiangsu, China |
| Manufacturer Type | Direct Manufacturer |
| Product Origin | Domestic (China) |
| Model | KY-HW2A |
| Price Range | USD 14,000–42,000 (FOB) |
| Measurement Principle | Non-Dispersive Infrared (NDIR) Absorption |
| Combustion System | High-Frequency Induction Furnace (2200 W, 20 MHz) |
| Carbon Range | 0.0005–6.0000 wt% (extendable to 99.999%) |
| Sulfur Range | 0.0005–0.3500 wt% (extendable to 99.999%) |
| Sample Mass (steel standard) | 0.5 g typical |
| Sensitivity | 0.1 ppm for both C and S |
| Precision | Compliant with ISO 9556 (carbon) and ISO 4935 (sulfur) |
| Analysis Time | Adjustable 20–100 s (standard: 35 s) |
| Duty Cycle | Continuous 24 h operation |
| Dust Filter Pore Size | 0.4 µm metallic sintered filter |
| Optical Coupling | Agilent 1521/2521 high-speed fiber-optic interface |
| Detector | High-stability pyroelectric infrared detector with gold-plated analysis cell |
| Light Source | Custom platinum-based IR emitter |
| ADC Resolution | 24-bit ADS1224 |
| Control Architecture | Dual-CPU modular design (Atmega162 lower-level controller) |
| Communication Interface | USB 2.0 |
| Power Supply | Industrial-grade linear regulated module |
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