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| Brand | ASTRO / ST |
|---|---|
| Origin | Shanghai, China |
| Model | DM1262 |
| Detection Method | Total Sulfur (S) by Energy-Dispersive X-ray Fluorescence (EDXRF) |
| Detection Limit (300 s, air atmosphere) | 2.6 ppm |
| Weight (incl. battery & thermal printer) | 5.6 kg |
| Measurement Range | 3×DL to 9.99 wt% S |
| Linearity Coefficient (r) | >0.999 across low/mid/high calibration ranges |
| Repeatability (r) & Reproducibility (R) | Compliant with GB/T 17040–2019, GB 17411, and ASTM D4294 |
| Operating Temperature | −10 °C to +40 °C |
| Relative Humidity | ≤95% at 35 °C |
| Power Supply | 11.1 V / 20.8 Ah Li-ion battery (≥5 h continuous operation) |
| Dimensions | 242 mm (W) × 258 mm (D) × 142 mm (H) |
| X-ray Tube | ≤10 kV, ≤1 mA, ≤10 W |
| Detector | Low-background ultra-thin Be-window proportional counter with secondary filtration |
| Pulse Processing | FPGA- and DSP-based digital multi-channel analyzer (MCA) with reduced dead time |
| Software | Embedded touchscreen OS with automatic C/H ratio correction, matrix effect compensation, and multi-range calibration curve switching |
| Regulatory Compliance | Meets radiation safety exemption criteria per CNPC and IAEA guidelines |
| Brand | ASTEL / ST |
|---|---|
| Origin | Shanghai, China |
| Model | DM2400S/Cl |
| Detection Elements | Total Sulfur (S), Total Chlorine (Cl) |
| Detection Limits (300 s) | S: 0.26 ppm, Cl: 0.18 ppm |
| X-ray Tube | Ag-target, micro-focus, thin Be window, ≤50 kV / ≤2 mA / ≤50 W |
| Detector | Silicon Drift Detector (SDD), 20 mm² active area, ≤123 eV resolution at Mn Kα, ≤2 Mcps count rate |
| Primary Optic | Logarithmic Spiral Doubly Curved Crystal (LSDCC) artificial monochromator |
| Standards Compliance | GB/T 11140, ISO 20884, ASTM D2622, ASTM D7039, ASTM D7220, ASTM D4929, ASTM D7536, ISO 15597 |
| Measurement Range | 3×LOD to 9.99 wt% |
| Linear Correlation Coefficient (r) | >0.999 for both S and Cl calibration curves |
| Repeatability (r) & Reproducibility (R) | Meets or exceeds all referenced ASTM/ISO/GB standards |
| Operating Environment | 5–40 °C, ≤85% RH (at 30 °C), 220 V ±20 V, 50 Hz, <200 W |
| Dimensions & Weight | 330 × 460 × 350 mm, 25 kg |
| Brand | ASTEL/ST |
|---|---|
| Origin | Shanghai, China |
| Model | DM1260 |
| Detection Method | Total Sulfur Quantification |
| Detection Limit (300 s) | 3.9 ppm |
| Compliance | GB/T 17040–2019, GB 17411, ASTM D4294 |
| X-ray Tube | ≤20 kV, ≤1 mA, ≤10 W |
| Detector | Ultra-thin Be-window Proportional Counter |
| Measurement Range | 3×LOD to 9.99 wt% S |
| Analysis Time | 1–999 s (recommended: 100 s for major, 300 s for trace) |
| Operating Environment | 5–40 °C, ≤85% RH at 30 °C, 220 V ±20 V, 50 Hz, ≤100 W |
| Dimensions & Weight | 300 × 410 × 165 mm, 10 kg |
| [Brand | AST |
|---|---|
| Origin | Shanghai, China |
| Model | DM8116 |
| Detection Target | Total Sulfur |
| Detection Limit (300 s) | 0.33 ppm |
| X-ray Tube | Ag anode, ≤50 kV / ≤2 mA / ≤50 W, micro-focus, thin Be window |
| Crystal | Logarithmic Spiral Doubly Curved Crystal (LSDCC) |
| Detector | Ultra-thin Be window proportional counter |
| Standards Compliance | GB/T 11140, ISO 20884, SH/T 0842, ASTM D2622, ASTM D7039, ASTM D7220 |
| Measurement Range | 3×LOD to 9.99 wt% |
| Analysis Time | 1–999 s (recommended: 300 s for trace, 60 s for major) |
| Operating Environment | 5–40 °C, ≤85% RH at 30 °C, 220 V ±20 V, 50 Hz, ≤200 W |
| Dimensions & Weight | 330 × 460 × 350 mm, 25 kg] |
| Brand | Aist / ST |
|---|---|
| Origin | Shanghai, China |
| Manufacturer Type | Authorized Distributor |
| Country of Origin | China |
| Model | DM1250 |
| Detection Principle | Energy-Dispersive X-Ray Fluorescence (EDXRF) |
| Measurement Target | SO₃ in solid/powder samples |
| Analysis Time | 30–60 s per sample |
| X-ray Tube | ≤10 kV, ≤0.5 mA, ≤5 W |
| Detector | Ultra-thin beryllium-window proportional counter |
| SO₃ Range | Adjustable via calibration |
| SO₃ Precision | σ ≤0.03 wt% (3σ) |
| Compliance | GB/T 176–2017, JC/T 1085–2008, JB/T 11145–2011 |
| Operating Temp | 5–40 °C |
| Humidity | ≤85% RH at 30 °C |
| Power | 220 V ±20 V, 50 Hz, ≤50 W |
| Dimensions | 470 × 365 × 130 mm (W×D×H) |
| Weight | 15 kg |
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