LX80-O-Series

LX-80-O Wave & Tide Radar Sensor

Name: LX-80-O Wave & Tide Radar Sensor
SKU: LX80-O-Series

Geolux LX80-O oceanographic radar sensor stands out as a cutting-edge solution for measuring tidal sea levels and wave parameters from coastal and offshore structures. Its compact design makes installation easy, and the non-contact radar measurement ensures minimal maintenance since the instrument does not contact the water.

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Features

Internal Wave Parameter Analysis – More than 50 various wave parameters are calculated on-board. There is no need to transfer full waveform data for offline postprocessing, which enables this instrument to be installed on locations where high-speed data transfer does not exist or is not convenient.
High Sampling Rate – With a water level sampling rate of 10 Hz, the LX80-O provides high-frequency measurements for detailed waveform analysis. This rate exceeds the Nyquist frequency for monitored sea waves, allowing for the filtering of outlier data points caused by water splashing.

Description

Unlike the standard LX80 sensor, which measures the distance to the water surface once per second, the oceanographic variant takes 10 measurements per second. The sampled 10 Hz waveform data can be transmitted in real-time and stored internally for up to six minutes. This stored data is analyzed within the instrument to determine tidal and wave parameters such as mean sea level, minimum and maximum levels, significant wave height, wave periods, and various spectral wave components. Using a moving window sampling technique, the measured waveform data and extracted wave parameters are continuously updated with the latest observations.

The LX80-O capabilities have been validated through numerous applications and studies. For instance, research conducted by TU Delft highlighted its role in maritime traffic impact assessments. Another example comes from the U.S. Geological Survey (USGS), which has utilized the LX80 to analyze the impact of sea waves generated by hurricanes on coastal structures.

Specifications

Parameter	LX 80-O15	LX 80-O30	LX 80-O50
Measurement Range	15 m	30 m	50 m
Application Hydrology and Flood Monitoring	-	-	-
Application Wastewater and Industrial Monitoring	-	-	-
Application Irrigation Monitoring	-	-	-
Application Snow Monitoring	-	-
Application Coastal and Ocean Monitoring	x	x	x
Application Meteorology	-	-	-
Antenna Beam Angle	5° (±2.5°)	5° (±2.5°)	5° (±2.5°)
Resolution	0.5 mm	0.5 mm	0.5 mm
Accuracy	±2.0 mm	±2.0 mm	±2.0 mm
Blind Zone	0.2 m	0.2 m	0.2 m
Frequency Range	W-band 80 GHz	W-band 80 GHz	W-band 80 GHz
Radar Type	FMCW	FMCW	FMCW
Mounting	M65 thread + nut	M65 thread + nut	M65 thread + nut
Sampling Rate	10 Hz	10 Hz	10 Hz
Serial Protocols	RS-232 RS-485 / Modbus-RTU SDI-12	RS-232 RS-485 / Modbus-RTU SDI-12	RS-232 RS-485 / Modbus-RTU SDI-12
Analog Interface	4-20 mA	4-20 mA	4-20 mA
Connector Type	M12 circular 12-pin	M12 circular 12-pin	M12 circular 12-pin
Cable	10 m cable included	10 m cable included	10 m cable included
Input Voltage	9 to 27 VDC	9 to 27 VDC	9 to 27 VDC
Power Consumption	1.85 W – operating mode 0.15 W – standby mode 0.03 W – sleep mode	1.85 W – operating mode 0.15 W – standby mode 0.03 W – sleep mode	1.85 W – operating mode 0.15 W – standby mode 0.03 W – sleep mode
Maximal Current	< 470 mA	< 470 mA	< 470 mA
Operating Temperature Range	-40°C to +85°C	-40°C to +85°C	-40°C to +85°C
Enclosure Material	Anodized aluminium Stainless steel (optional)	Anodized aluminium Stainless steel (optional)	Anodized aluminium Stainless steel (optional)
Enclosure Dimensions	Φ 65 mm x H 78 mm	Φ 65 mm x H 78 mm	Φ 65 mm x H 78 mm
Enclosure Protection Class	IP68	IP68	IP68
Weight (without cable)	500 g – aluminium enclosure 1200 g – stainless steel enclosure	500 g – aluminium enclosure 1200 g – stainless steel enclosure	500 g – aluminium enclosure 1200 g – stainless steel enclosure

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