- Surface & Groundwater Monitoring: Measuring level and depth in wells, boreholes (from 1″ diameter), and shafts.
- Open Waterways: Suitable for rivers, dams, weirs, irrigation systems, and channels that may occasionally ice over or dry out.
- Coastal & Harsh Environments: Features 904L stainless steel housing and a ceramic pressure cell that are resistant to saltwater and physical force.
- Flood Warning Systems: Used in urban flood warning stations for proactive risk management and stakeholder notification.
OTT PLS 500 Pressure Level Sensor, SDI-12, Metric, 0 – 10 m
Building on years of experience with the robust and accurate OTT PLS, the PLS 500 water level monitoring solution adds innovative metadata and internal sensors to remotely verify device performance providing peace of mind for long term deployment.
- Measurement: Water Level, Pressure, Temperature.
- Technology: Ceramic pressure cell with hydrostatic measurement.
- Compensation: Vented cable and internal sensors automatically correct for atmospheric pressure and temperature changes, ensuring accurate readings.
- Communication: Industry-standard SDI-12 protocol for easy connection to data loggers, with optional Modbus RTU.
- Data Quality: Built-in QA/QC, metadata, and performance verification (inclinometer, humidity) for remote data confidence.
- Durability: 904L stainless steel housing, rugged cable, IP68 rating for harsh environments (ice, brackish water).
- Configuration: Configurable for various units (m, cm, ft) and supports offset entry for calibration.
- Design: Compact probe (194x22mm) for small pipes, long-life performance with minimal drift.
- Measurement Principle: Hydrostatic pressure with integrated temperature compensation.
- Measured Parameters: Water Level, Water Temperature, Internal Relative Humidity, Sensor Position.
- Range: 0-10 meters (water level).
- Accuracy (Water Level): ±0.1% Full Scale (Linearity & Hysteresis).
- Resolution (SDI-12): 0.001 m (1 mm).
- Compensation: Automatic for water density, temperature, and atmospheric pressure.
- Communication: SDI-12 (V1.4) & RS-485 (Modbus RTU).
- Power: 5.5-28.8 V DC (typically 12/24 V).
- Protection: IP68 (Probe), <250µA sleep current.
- Housing/Material: 904L Stainless Steel, POM.
- Smart Features: Internal QA/QC, metadata, data averaging (min/max/avg).
