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| Product Name | TongAo TR-401ZH Portable STIP-scan | TongAo TR 6900Cr Desktop STIP-scan |
| Product Price | $1574.00 | $1622.00 |
| Details | Details | |
| Model comparison | ||
| Type | Multiparameter | Single parameter |
| Style | Portable | desktop |
| Detection Principle | Photometric | Photometric |
| Measurement parameters | Heavy Metals | Heavy Metals |
| Range | PPM Level | PPM Level |
| Accuracy | ±5%FS | ±5%FS |
| Resolution | 0.01 | 0.01 |
| Data Output | USB Bluetooth | USB |
| IP Rating | ||
| Parameter comparison | ||
| Measurement parameter | Total chromium, hexavalent chromium, copper, zinc | Total chromium |
| Total chromium measurement Range | 0-5Mg/L (segmented) | |
| Total chromium detection limit | 0.01 mg/L | |
| Total chromium digestion environment | 125℃，30min | |
| Measurement Range of hexavalent chromium | 0-5Mg/L (segmented) | |
| Lower limit of hexavalent chromium detection | 0.01 mg/L | |
| Hexavalent chromium digestion environment | No need to digest | |
| Copper measurement Range | 0-10Mg/L (segmented) | |
| Lower limit of copper detection | 0.05 mg/L | |
| Copper digestion environment | No need to digest | |
| Zinc measurement Range | 0-15Mg/L (segmented) | |
| Lower limit of zinc detection | 0.05 mg/L | |
| Zinc digestion environment | No need to digest | |
| 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) |
| Colorimetric method | Colorimetric tube (digestion Colorimetric tube) | Digestion Colorimetric tube |
| batch Volume | 6 pcs, 16 pcs, 25 pcs (optional) | 16/25 water samples/batch |
| data storage | 4000 records, 96 Linear dispersion (support user-defined calibration) | 30,000 records (including item, date, time, sample ID, etc.) |
| transmission method | USB data cable, LAN, Bluetooth transmission, etc. (optional) | |
| printer | Portable thermal printer (optional) | Built-in thermal printer |
| operation interface | Chinese/English (optional) | Membrane push-button operation, Chinese/English (optional) |
| Power supply | 5V rechargeable battery | AC(220V±10%)，50Hz |
| power | 0.3W | 5W |
| Host Size | 240*95*80mm | 348*250*145mm |
| instrument weight | Host: 0.5kg; Digestion instrument: 1.37kg | Main unit less than 2.6kg |
| Environment temperature | 5~40℃ | 5~40℃ |
| Environment humidity | ≤ 85% non-condensing | ≤ 85% non-condensing |
