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| Brand | Tianhe (Shandong Tianhe Instrument Co., Ltd.) |
|---|---|
| Origin | Shandong, China |
| Manufacturer Type | Direct Manufacturer |
| Country of Origin | China |
| Model | TH-SS15S |
| Detection Principle | Chlorophyll-a Fluorescence Method |
| Measurement Range | 0–400 µg/L |
| Resolution | 0.01 µg/L |
| Accuracy (Linearity) | R² > 0.999 |
| Temperature Compensation | Automatic |
| Self-Cleaning Function | Integrated Brush-Based Cleaner with Configurable Interval & Cycles |
| Power Consumption | 0.7 W (Operating), 0.4 W (Standby) |
| Supply Voltage | DC 12–24 V |
| Output Interface | RS-485 (Modbus RTU Protocol) |
| Storage Temperature | –5 to 65 °C |
| Operating Environment | 0 to 50 °C, < 0.2 MPa |
| Installation | Submersible, 3/4″ NPT Thread |
| Cable Length | 5 m |
| Protection Rating | IP68 |
| Housing Material | 316L Stainless Steel |
| Calibration Method | Two-Point (Zero & Span) via PC Software or Modbus Commands |
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