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| Brand | Hach |
|---|---|
| Origin | Imported |
| Manufacturer Type | Manufacturer |
| Application | Laboratory Use |
| Measured Parameter | Total Phosphorus |
| Measurement Principle | Acidic Persulfate Digestion + Ammonium Molybdate Colorimetry at 880 nm |
| Measurement Range | 0.01–3.8 mg/L as PO₄–P |
| Accuracy | <2% at 1 mg/L |
| Detection Limit | 0.01 mg/L |
| Resolution | 0.001 mg/L |
| Sample pH Range | 2–10 |
| Digestion Conditions | 150 °C, 6 bar |
| Particle Tolerance | Up to 100 µm |
| Calibration Method | Single- or Multi-point |
| Auto-sampler Options | 36-position (with stirring) or 53-position (without stirring) |
| Display | Color LCD |
| Weight | 40 kg (digestion/analysis unit), 5 kg (auto-sampler) |
| Brand | HACH |
|---|---|
| Origin | Imported |
| Manufacturer Type | Manufacturer |
| Model | Phosphax Sigma |
| Measurement Parameter | Total Phosphorus |
| Instrument Type | Online Analyzer |
| Measurement Principle | Spectrophotometric Method (Molybdenum Blue) |
| Measurement Range | Total Phosphorus: 0.01–5.0 mg/L as P |
| Accuracy | ±2% of reading |
| Detection Limit | 0.01 mg/L as P |
| Resolution | 0.01 mg/L as P |
| Orthophosphate Range | 0.01–5.0 mg/L as P |
| Cycle Time | ~10 minutes per analysis |
| Calibration | Automatic |
| Sample Flow Rate | 100 mL/h |
| Reagent Replacement Interval | Every 3 months |
| Output Signals | Two isolated 4–20 mA analog outputs (max. load 500 Ω) |
| Communication Protocols | Modbus RTU, Profibus DP |
| Operating Temperature | 5–40 °C |
| Power Supply | 220 VAC, 50 Hz |
| Compliance | DIN 38405-Part D11 (German Standard for Phosphorus Determination) |
| Brand | Hach |
|---|---|
| Origin | Imported |
| Manufacturer Type | Manufacturer |
| Model | NPW160H Total Phosphorus and Total Nitrogen Analyzer |
| Measurement Parameters | Total Nitrogen (TN), Total Phosphorus (TP) |
| Instrument Type | Online Analyzer |
| Measurement Principle | High-Temperature Alkaline Persulfate Digestion Followed by Spectrophotometric Detection (UV at 220 nm for TN |
| Measurement Range | TP: 0–0.5 mg/L to 0–20 mg/L |
| TN | 0–2 mg/L to 0–100 mg/L |
| Accuracy | ≤3% of reading |
| Detection Limit | ≤3% of full scale |
| Resolution | As per configured range |
| Repeatability | ≤3% |
| Cycle Time | Configurable from 1 hour to 24 hours per measurement |
| Sample Flow Rate | 1–3 L/min (sample volume ~35 mL per analysis) |
| Sample Inlet Temperature | 2–40 °C |
| Operating Ambient Temperature | 5–40 °C |
| Relative Humidity | ≤85% RH, non-condensing |
| Data Storage | Internal memory retains 1 year of data and logs |
| Dimensions (H×W×D) | 450 × 380 × 1280 mm (excluding drip tray) |
| Weight | ~76 kg (excluding reagents) |
| Communication Interface | RS-485 (Modbus RTU protocol) |
| Digestion Conditions | 120 °C, 30 min alkaline persulfate oxidation |
| Compliance | ASTM D5176 (TP), ASTM D4519 (TN), ISO 15681-1, HJ 636–2012 (China), GB 11893–1989 (China) |
| Brand | Hach |
|---|---|
| Origin | Imported |
| Manufacturer Type | Manufacturer |
| Model | NPW-160 |
| Measurement Parameters | Total Phosphorus (TP), Total Nitrogen (TN), UV-based Chemical Oxygen Demand (UV-COD) |
| Instrument Type | Online Analyzer |
| Measurement Principle | Alkaline Persulfate Oxidation + Spectrophotometry (TP: Molybdenum Blue at 700 nm |
| TN | UV Absorbance at 220/275 nm with Turbidity Correction |
| UV-COD | Dual-wavelength UV-Vis at 254/546 nm) |
| Measurement Ranges | TN: 0–2 mg/L to 0–100 mg/L |
| TP | 0–0.5 mg/L to 0–20 mg/L |
| UV-COD | 0–20 mg/L to 0–500 mg/L |
| Accuracy | ≤ ±5% of reading |
| Detection Limits | TN: 0.2 mg N/L |
| TP | 0.06 mg P/L |
| Resolution | 0.001 mg/L |
| Brand | HACH |
|---|---|
| Origin | Imported |
| Manufacturer Type | Manufacturer |
| Model | NT6800 |
| Measurement Parameter | Total Nitrogen (TN) |
| Instrument Type | Online Analyzer |
| Measurement Principle | Alkaline Potassium Persulfate Digestion + UV-Visible Spectrophotometry |
| Measurement Range | 0–5 / 10 / 20 / 50 / 100 / 200 mg/L (field-configurable upper limit compliant with HJ 355–2019 |
| Detection Limit | 0.05 mg/L |
| Display Resolution | 0.1 / 0.01 / 0.001 / 0.0001 mg/L (selectable 3-, 4-, or 5-digit display) |
| Brand | HACH |
|---|---|
| Origin | Imported |
| Manufacturer Type | Manufacturer |
| Model | IL500 |
| Application | Total Nitrogen (TN) |
| Instrument Type | Laboratory Analyzer |
| Measurement Principle | Spectrophotometry (UV absorbance at 210 nm and 228 nm) |
| Digestion Method | Alkaline Potassium Persulfate Oxidation (150 °C, 8 bar) |
| Measurement Range | Low Range: 0.5–30 mg/L TN |
| High Range | 30–150 mg/L TN |
| Accuracy | <2% at 15 mg/L TN |
| Detection Limit | 0.5 mg/L TN |
| Resolution | 0.1 mg/L |
| Sample pH Range | 2–11 |
| Particle Tolerance | Up to 100 µm |
| Calibration | Single- or Multi-point |
| Auto-sampler Options | 36-position (with stirring) or 53-position (without stirring) |
| Display | Color LCD |
| Weight | Digestion/Analysis Unit: 40 kg |
| Auto-sampler | 5 kg |
| Communication | RS232 & Wireless Infrared |
| Compliance | Designed for ASTM D1426, ISO 11905-1, EPA 351.2, and USP <643> alignment |
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