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| Brand | Hach |
|---|---|
| Origin | USA |
| Model | 9184sc |
| Instrument Type | Online Analyzer |
| Measurement Principle | Amperometric Electrochemical Sensor (HOCl-selective Membrane) |
| Measurement Parameter | Free Chlorine (as HOCl) |
| Range | 0.005–20 ppm (mg/L) HOCl |
| Accuracy | ±2% of reading or ±10 ppb HOCl (whichever is greater) |
| Detection Limit | 5 ppb (0.005 mg/L) HOCl |
| Response Time (t₉₀) | <90 seconds |
| Sample Flow Rate | 200–250 mL/min (automatically regulated) |
| Operating Temperature | 0–45 °C |
| Sample Temperature Range | 2–45 °C |
| Sample pH Range | 4–8 |
| Calibration Interval | Every 2 months |
| Membrane & Electrolyte Replacement Interval | Every 6 months |
| Enclosure Rating | IP66 / NEMA 4X |
| Dimensions | 270 × 250 mm |
| Storage Temperature | −20–60 °C |
| Inlet/Outlet Fittings | 1/4″ O.D. inlet, 1/2″ I.D. outlet |
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