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| Product Name | TongAo TR 6900NH Desktop STIP-scan | TongAo TR 6900NHP Desktop STIP-scan |
| Product Price | $1475.00 | $2718.00 |
| Details | Details | |
| Model comparison | ||
| Type | Single parameter | Multiparameter |
| Style | desktop | desktop |
| Measurement parameters | NH3-N | TP NH3-N NTU Miscellaneous |
| Accessories | ||
| Parameter comparison | ||
| Measurement parameter | ammonia nitrogen | Ammonia nitrogen, Total phosphorus, 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 |
| Shell Protection Ratings | IP30 | |
| 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 "Water quality, determination of ammonia nitrogen, Nessler reagent Spectrophotometric method, spec-trophotometry" | HJ535-2009 Nessler reagent Spectrophotometric method, spec-trophotometry |
| 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 |
