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| Brand | WTW |
|---|---|
| Origin | Germany |
| Model | TetraCon® 700 IQ |
| Measurement Principle | Four-Electrode Conductivity |
| Conductivity Range | 10 µS/cm to 500 mS/cm (up to 1000 mS/cm for SW variant) |
| Resolution | 0.01 µS/cm |
| Salinity Range | 0–70 PSU |
| TDS Range | 0–2000 mg/L |
| Response Time (t₉₀) | <60 s |
| Electrode Constant | Adjustable 0.826–1.008 cm⁻¹ (default K = 0.917 cm⁻¹ in free solution |
| Temperature Compensation | Integrated, -5 °C to +60 °C |
| Max. Pressure Rating | 10 bar (20 °C) |
| Accuracy | ±2% of reading (conductivity), ±0.1–0.2 PSU (salinity, depending on temperature range) |
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