Free Chlorine Sensor: SpiderTrac FR809-W
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WATER
Free Chlorine Sensor: SpiderTrac FR809-W
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The Free Chlorine Sensor is a Swiss-engineered device utilizing a silicon nitride–coated photopolymer film and silicon crystal semiconductor, featuring built-in chlorine and temperature probes constructed with MEMS technology. It generates current signals based on changes in free chlorine or chlorine dioxide concentration and converts them into a MODBUS RS485 output, offering reagent-free operation with stable, accurate, and low-maintenance performance for water treatment and monitoring applications.
Key Features
- Continuous online monitoring
- Fast response with stable accuracy
- Automatic temperature compensation
- RS-485 (Modbus/RTU), optional 4–20 mA
| Name Type | SpiderTrac FR809-W |
|---|---|
| Probe | Single Probe |
| Range | 2～12 pH |
| Accuracy | ±5%，±0.3℃ |
| Callibration Time | 12 Month |
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