LOG_aLevel Long Range Tide Gauge
LOG_aLevel is extremely robust & reliable and is used for precise measurements of all kinds of water levels and wave dynamics (up to steep waves).
LOG_aLevel can be easily extended to include a Datalogger, Data Communication systems and additional hydrological and meteorological system to form a complete monitoring station. Furthermore, multiple LOG_aLevel stations can be interconnected to form a network. Integration in SCADA systems is straightforward.
For a stationary Tide Gauge with a measurement range up to 10 meters, or using pressure sensors, please see LOG_aLevel.
For a mobile Tide Gauge please see LOG_aLevel Mobile.
- Easy to install and integrate into SCADA systems
- Cost effective
- Extremely Robust & reliable
- Used in Offshore Oil, Gas and Wind Energy Platforms around the World
- Maximum Accuracy at all times
- Maintenance-Free (no moving parts, remote sensing)
- Reliable under Extreme Conditions: Flood, Ice, Storms, Debris, etc.
- Narrow Ultrasound Beam for Accurate Level even at Wavy Water Surface
- Simultaneous Wave and Level Measurement
- Extension With Additional Sensors (Redundancy, Meteorology and Hydrology)
- Remote Data Transmission, Control and Alerting
- Easy Integration to Measuring Networks
- Reduced risk of malfunction in case of flood and ice (no frozen level gauges!)
- Fast measurements (measurement of steep waves is possible)
- Remote sensing without influence to water surface
- Continuous speed of sound measurement with Reference sensor REF-300 ensures an always accurate, calibration-free system (applies to systems with ultrasound sensors)
- Housing: 300x400x200mm or 500x500x200mm stainless steel with lock, seawater resistant IP class up to 67
- Mounting of Sensors: Seawater resistant pole (stainless steel) with mounting plate
- LOG_aLevel Windows Software for system set-up, analysis of measuring network, visualization, managing, storing and exporting of data
Specifications Measuring range: 15, 20, 25, 30 m (ultrasonic) 40 m (radar) Sample rates: up to 5 Hz Resolution: 1 mm Accuracy: 2 cm Power supply: 24 VDC ( 230/110V AC optional) Data output RS232 or RS485
- Ultrasound and Radar Sensors (see table below for details)
- Power autonomy: Backup battery up to 200 Ah, Solar Power, Wind Power
- Data logger with SD memory card (4GB / 8GB)
- Data transmission: Radio, GPRS, Satellite, Cloud, AIS, AIS AtoN
- Integration of any desired Hydrological and Meteorological Sensors (also in data stream, visualization and logging)
- Example Hydrological sensors: Water temperature, Inductive current meter, ADCP, Surface Current Flow, CTD, Salinity, Conductivity, Dissolved Oxygen, etc.
- Example Meteorological sensors: Wind gauge, Air temperature, Humidity, Rain, Ice, Solar Radiation, Barometric Pressure, Cloud Height, Visibility, complete Weather Stations and sensors for Helidecks, etc.
- ATEX (Ex Zone) Sensors and complete LOG_aLevel System for use in environments with an explosive atmosphere
- Time: High accuracy GPS – date and time (pps, 1ms accuracy)
- Data Server / Database
- Alerting / Early Warning System
- Tide Analysis and Prediction (please see TidePrediction Software)
- Hypack – Export or Data Stream
- Interfaces: LAN (fiber optic or RJ45), Modbus RTU or TCP
- Various Sensor bracket designs
- Additional wave parameters, wave spectra
Measurement Range: Ultrasound Sensor: Maximum distance from Sensor to Water: 30 meters
Radar Sensor: Maximum distance from Sensor to Water: 50 meters (larger ranges possible)
- Operation of Offshore Platforms
- Support of Offshore Construction Work, Offshore Maintenance and Surveys
- Optimization and Safety of Transport and Construction
- Wave Monitoring and Analysis
- Integration into or extension to a complete Met station
- Load Determination for Offshore Constructions
- Event Alerting System
- Hydrology and Environmental Monitoring
- Local Tide Analysis and Prediction
- Storm Tide, Flood and Tsunami Measuring Networks
- Real-Time Data for Vessels through AIS/AtoN
- Wave Measurements from Jack-Ups and Rigs
- Water Reservoir Management and River Monitoring from Bridges