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| Product Name | TongAo TR 6900NHP Desktop STIP-scan | TongAo TR 6900NHPN Desktop STIP-scan |
| Product Price | $2752.00 | $3430.00 |
| Details | Details | |
| Model comparison | ||
| Type | Multiparameter | Multiparameter |
| Style | desktop | desktop |
| Detection Principle | Photometric Turbidimetric | Photometric Turbidimetric |
| Measurement parameters | TP NH₃-N NTU | TP NH₃-N NTU TN |
| Range | Wide Range | Wide Range |
| Accuracy | ±5%FS | ±5%FS |
| Resolution | 0.01 | 0.01 |
| Data Output | USB | USB |
| IP Rating | ||
| Parameter comparison | ||
| Measurement parameter | Ammonia nitrogen, Total phosphorus, turbidity, suspended solids | Ammonia nitrogen, Total phosphorus, Total nitrogen, turbidity, suspended solids |
| measurement error | ≤±5% | ≤±5% |
| Repeatability | ≤±5% | ≤±5% |
| Optical inspection Stability | ≤ +/- 0.001A/20 minutes (100,000 hours life) | ≤ +/- 0.001A/20 minutes (100,000 hours life) |
| data storage | 30,000 records (including item, date, time, sample ID, etc.) | 30,000 records (including item, date, time, sample ID, etc.) |
| Linear dispersion quantity | 96 Linear dispersion (expandable) | 96 Linear dispersion (expandable) |
| printer | Built-in thermal printer | Built-in thermal printer |
| display screen | 5-Inch high-definition color LCD screen | 5-Inch high-definition color LCD screen |
| batch Volume | 16/25 water samples/batch | 16/25 water samples/batch |
| Colorimetric method | Digestion Colorimetric tube | Digestion Colorimetric tube |
| sample compatibility | 16Mm (round), 25mm (round) | 16Mm (round), 25mm (round) |
| interface | USB cable, LAN, etc | USB cable, LAN, etc |
| exception notification | Blank comparison prompt, over-Range prompt, etc | Blank comparison prompt, over-Range prompt, etc |
| operation interface | Membrane push-button operation, Chinese/English (optional) | Membrane push-button operation, Chinese/English (optional) |
| Power supply | AC(220V±10%)，50Hz | AC(220V±10%)，50Hz |
| power | 5W | 5W |
| Environment humidity | ≤ 85% non-condensing | ≤ 85% non-condensing |
| Environment temperature | 5~40℃ | 5~40℃ |
| Host Size | 348*250*145mm | 348*250*145mm |
| instrument weight | Main unit less than 2.6kg | Main unit less than 2.6kg |
| Ammonia nitrogen detection method | HJ535-2009 Nessler reagent Spectrophotometric method, spec-trophotometry | Nasser reagent |
| Ammonia nitrogen test Range | 0-50mg/L | 0-50mg/L |
| Ammonia nitrogen detection lower limit | 0.01mg/L | 0.01mg/L |
| Ammonia nitrogen digestion environment | No need to digest | No need to digest |
| Total phosphorus detection method | GB11893-89 Ammonium molybdate Spectrophotometric method, spec-trophotometry | Ammonium molybdate method |
| Total phosphorus testing Range | 0-20mg/L | 0-20mg/L |
| Total phosphorus detection limit | 0.01mg/L | 0.01mg/L |
| Total phosphorus digestion environment | 125℃，30min | 125℃，30min |
| Turbidity detection method | Spectrophotometric method,spec-trophotometry | Spectrophotometric method,spec-trophotometry |
| Turbidity test Range | 0-1000NTU | 0-1000NTU |
| Lower limit of turbidity detection | 0.5NTU | 0.5NTU |
| Turbidity digestion environment | No need to digest | No need to digest |
| Suspension detection method | Direct Colorimetry | Direct Colorimetry |
| Suspended solids test Range | 0-500mg/L | 0-500mg/L |
| Lower limit of suspended solids detection | 2mg/L | 2mg/L |
| Suspension digestion environment | No need to digest | No need to digest |
