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| Brand | ShengAohua |
|---|---|
| Origin | Jiangsu, China |
| Manufacturer Type | Manufacturer |
| Product Category | Domestic |
| Model | SH-50L |
| Instrument Type | Portable |
| Measurement Principle | DPD Spectrophotometry |
| Measured Parameters | Residual Chlorine, Total Chlorine |
| Range | 0–3 mg/L |
| Accuracy | ≤ ±5% |
| Repeatability | ≤ ±5% |
| Resolution | 0.001 mg/L |
| Detection Limit | 0.001 mg/L |
| Optical Stability | ≤ ±0.005 A/20 min |
| Power Supply | Rechargeable Lithium-ion Battery (7-day field operation) + AC/DC Adapter |
| Brand | Shengaohua |
|---|---|
| Origin | Jiangsu, China |
| Manufacturer Type | Direct Manufacturer |
| Instrument Type | Laboratory Benchtop Analyzer |
| Model | 6B-50YL(V10) |
| Measurement Principle | DPD Colorimetric Spectrophotometry |
| Measured Parameter | Free Residual Chlorine |
| Range | 0–3 mg/L |
| Accuracy | ≤ ±5% |
| Repeatability | ≤ ±5% |
| Resolution | 0.001 mg/L |
| Detection Limit | 0 mg/L |
| Display | Large Backlit LCD with Chinese Menu Interface |
| Light Source | Cold LED with Narrow-Band Interference Filter (100,000 hr lifetime) |
| Calibration Curves | Up to 5 User-Editable Stored Curves |
| Data Storage | 5,000,000 Measurement Records |
| Measurement Time | ≤ 60 s per Sample |
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