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| Brand | Ailun General / Qingdao Ailun |
|---|---|
| Origin | Shandong, China |
| Manufacturer Type | Authorized Distributor |
| Country of Origin | China |
| Model | AL-SZ5000 |
| Instrument Type | Laboratory Water Quality Analyzer |
| Measured Parameters | COD, Ammonia Nitrogen (NH₃-N), Total Phosphorus (TP), Total Nitrogen (TN) |
| Measurement Range | COD 5–10,000 mg/L |
| Display | 7-inch color LCD touchscreen |
| Optical System | Imported fiber-optic detection system |
| Wavelength Range | 340–900 nm |
| Wavelength Accuracy | ±1 nm |
| Spectral Bandwidth | 4 nm |
| Light Source | Imported 12 V / 20 W halogen lamp (rated life >100,000 h) |
| Detection Method | Cuvette-based colorimetry with pre-filled reagent vials |
| Resolution | 0.001 mg/L (for applicable ranges) |
| Accuracy | ≤±5% FS |
| Repeatability | ≤±2% RSD |
| Pre-stored Calibration Curves | 100 factory-loaded standard curves + 10 user-definable fitting curves |
| Data Storage | Up to 1,000,000 measurement records with timestamped retrieval |
| Auto-calibration | Yes, with fixed reference channel |
| Digestion Unit | Integrated 16-position digestion block (standard configuration) |
| Printer | Built-in thermal printer for real-time and historical data output |
| Data Interface | USB port + RS-232 serial interface |
| Compliance Standards | HJ 535-2009, GB 11893-1989, HJ/T 399-2007 |
| Brand | Ailun |
|---|---|
| Origin | Qingdao, Shandong, China |
| Model | AL-AC120 |
| Instrument Type | Online Water Quality Analyzer |
| Measuring Parameter | Chemical Oxygen Demand (COD) |
| Measurement Range | 0–5000 mg/L |
| LOD | ≤15 mg/L (±30% error at low end) |
| Repeatability | ≤±5% |
| Low-Concentration Drift | ±5 mg/L |
| High-Concentration Drift | ≤5% |
| Minimum Cycle Time | 20 min |
| Adjustable Sampling Interval | 10–9999 min |
| Digestion Time | Configurable per application |
| Calibration Interval | 1–99 days |
| Maintenance Interval | ~30 days (~60 min/session) |
| Output Interfaces | RS-232, RS-485, 4–20 mA (optional) |
| Operating Temperature | +5 to +28 °C (climate-controlled indoor environment) |
| Relative Humidity | ≤90% non-condensing |
| Power Supply | AC 220 V ±10%, 50 Hz ±10%, 5 A |
| Accuracy (Standard Solution Validation) | ±10.0% at 40.0 mg/L |
| Memory Effect | ±10.0% at 40.0 mg/L |
| Field Sample Comparison Tolerance | ≤5 mg/L for samples <50.0 mg/L |
| Chloride Interference Tolerance | Standard mode ≤2.5 g/L Cl⁻ |
| Control System | Panasonic PLC-based embedded controller |
| Brand | Ailun |
|---|---|
| Origin | Shandong, China |
| Model | AL-SZ5000Plus |
| Detection Parameters | COD, Ammonia Nitrogen, Total Phosphorus, Total Nitrogen, Turbidity |
| Measurement Range | COD 5–10,000 mg/L |
| Wavelength Range | 340–900 nm |
| Optical Bandwidth | 4 nm |
| Wavelength Accuracy | ±1 nm |
| Display | 7-inch color LCD touchscreen |
| Data Storage | Up to 1,000,000 measurement records |
| Pre-stored Calibration Curves | 280 standard + 50 user-fittable curves |
| Photometric System | Fiber-optic detection architecture |
| Light Source | Imported 12 V / 20 W halogen lamp (≥100,000 h lifetime) |
| Detection Modes | Rotating 360° cuvette holder (pre-filled reagent vials) + dual-channel automatic cuvette loader (powder/solid reagents) |
| Repeatability | ≤±2% |
| Accuracy | ≤±5% |
| Inter-channel Error | ≤±2% |
| Digestion Unit | Integrated 16-position heating block compliant with HJ/T 399–2007 |
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