QL Instrument
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| Brand | QL Instrument |
|---|---|
| Origin | Jiangsu, China |
| Model | HW2000DH |
| Measurement Principle | Infrared Absorption |
| Heating System | High-Frequency Induction Furnace |
| Carbon Range | ω(C) 0.0010–10.00% |
| Sulfur Range | ω(S) 0.0005–0.500% |
| Precision (C) | RSD ≤ 0.5% |
| Analysis Time | Adjustable 20–60 s (typical 35 s) |
| Sample Weighing | Analytical Balance (0.0001 g resolution) |
| Operating Environment | 10–30 °C, RH < 75% |
| Compliance | Meets GB/T 223.69–1997 (C) and GB/T 223.68–1997 (S) |
| Brand | QL Instrument |
|---|---|
| Origin | Jiangsu, China |
| Model | QL-BS1000G |
| Detection Principle | Photometric Colorimetry with Self-Aligning Exit-Slit Diffraction Grating Optical System |
| Wavelength Selection | Computer-Automated |
| Measurement Time per Element | ≤5 s |
| Weighing Device | Analytical Balance (0.0001 g resolution) |
| Sample Type | Solid metallic alloys (as dissolved acid digests) |
| Temperature Range | 10–30 °C |
| Relative Humidity | <75% RH |
| Compliance | GB/T 223 series (e.g., GB/T 223.3–2008, GB/T 223.5–2008, GB/T 223.11–2008) |
| Software Interface | Native Chinese GUI with integrated printer driver (RS-232/USB) |
| Optical Architecture | Custom-designed exit-slit grating monochromator with fixed slit width and adjustable wavelength positioning |