Overview
Overview
The FMS is positioned as a compact flood-monitoring and stream-gauging system. The system combines the SensorLink 1000 IoT datalogger/communications unit with a water-level sensor. The PLS-C option adds water level, water temperature and conductivity measurement
Benefits
Three Parameters, One Sensor
Measure water level, temperature, and conductivity with a single PLS-C probe for a more complete picture of changing water conditions.
Reliable Long-Term Measurements
Get accurate, stable measurements with a robust ceramic pressure cell and automatic barometric compensation.
Built for Harsh Environments
Rely on an IP68-rated, seawater-resistant sensor designed for demanding surface water and groundwater applications.
Connected, Low-Power Monitoring
Combine efficient sensing with SensorLink 1000 data logging and cellular communications for autonomous, remote monitoring.
Specifications
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Technical Attributes
| Variant | Ott PLS-C |
| Parameters Measured | Water level, temperature, conductivity |
| Measurement Range | 0–4 m / 0–13 ft |
| 0–10, 0–20, 0–40, 0–100 m / 0–33 ft, 0–66 ft, 0-131 ft, 0-328 ft | |
| ±0.05% FS | |
| Temperature Accuracy | ±0.1 °C / ±0.2 °F |
| Temperature resolution | 0.01 °C / 0.01 °F |
| ±1 µS/cm or ±0.5% of measured value, whichever is higher | |
| ±0.01 mS/cm or ±1.5% of measured value, whichever is higher | |
| 4-electrode cell | |
| Interface | RS-485 via SDI-12 protocol; SDI-12 |
| Power | 6–27 V DC, typically 12/24 V DC |
| ≤30 µA | |
| ≤32 mA | |
| Housing material | Stainless steel 1.4539 / 904L, seawater-resistant |
| Protection class | IP68 |
| Operating temperature | −25 ... +70 °C (−13 ... +158 °F), ice-free |
| Storage temperature | −40 ... +85 °C (−40 °F to +185 °F) |
Data Sheets