Acoustic Tide Gauge Water Level Gauge Wave Gauge

LOG_aLevel^® - Autonomous Remote Sensing of Waterlevels and -Waves


LOG_aLevel Station in a Stormtide -Network in the Port of Hamburg LOG_aLevel measures each single wave up to the breaking point Sensor-Array with Reference Track to measure the sound velocity		LOG_aLevel is a complete, remote sensing, stand-alone water level gauge on the basis of ultrasonic sensors. The power is supplied via 12 V DC or 110/230 V AC (optional wind generator or solar panel). The system works automatically and is independent of any external connections. High performance ultrasonic sensors guarantee robust, reliable, fast and precise measurements of all kinds of water levels and its dynamics (up to steep waves). Operations of a LOG_aLevel-Network, consisting of a number of individual installations interconnected by GSM or other mobile network systems for regional flood alarm and control. LOG_aLevel in Adelaide /Australia Ask for our operational service “Flood Control Net”, which services network owners or operators with all relevant water level and flood control data needed to provide for effective and timely flood control measures. System redundancy features guarantees for high measurement and data security.

View of LOG_aLevel-Software		Ultrasound Sensor, the "ear" of the Acoustic Tide Gauge
Fig above: The Mobile Version of LOG_aLevel Details about the Mobile Version click here
Configuration Examples: LOG_aLevel with Options in big Housing LOG_aLevel with Options in small Housing Case Studies LOG_aLevel and Publications Case Study Port of Hamburg/Germany Case Study River Vienne/France Case Study North Sea/Germany		Brochures and Presentations LOG_aLevel^® (PDF, 366 KB) English Mobile LOG_aLevel^® (PDF, 370 KB) Engl. LOG_aLevel^® (PDF, 752 KB) German LOG_aLevel^® (PDF, 250 KB) Spanish LOG_aLevel^® for Tsunami (PDF, 380 KB) Presentation LOG_aLevel (PDF, 2.5 MB) Presentation LOG_aLevel GER (900 KB) Frequently Ask Questions

	Advantages of LOG_aLevel in opposition to mechanical water level gauges:
	Easy to install Cost effective Robust, reliable and maintenance free 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 These facts make the LOG_aLevel System an interesting and cost effective alternative to conventional level monitoring and wave measurement systems.

	Features:
	Housing:	300x300x200 mm or 500x500x200 mm stainless stell with lock, seawater resistant IP class up to 69k, flood-secure
	Mounting of Sensor:	Seawater resistant pole (anodized aluminium or stainless steel) with base plate

	Specifications:
	Measuring range:	up to 10m (wider ranges on request)
	Sample rates:	from 5 Hz up to 1 value/day
	Resolution:	1 mm
	Accuracy:	1 cm
	Power supply:	12 VDC ( 230/110V AC optional)
	Data output	RS232 or RS 485
	Options:
	Solar panel:	41Wp up to 180Wp (if required), seawater resistant with high efficiency MPP-charge regulator
	Wind Generator:	72 W up to 400 W, , seawater resistant with high efficiency MPP-charge regulator
	Backup battery:	Maintenance free lead gel battery, 12 V 7,5 Ah up to 200 Ah (if required)
	Data transmission:	Radio, telephone modem, GPRS (ranging from remote on/off over status monitoring up to a complete remote control with data transmission over a transparent line and data server @www)
	Data aquisition:	Low power datalogger with non - volatile memory or SD-Card up to 2 GB
	Further sensors:	Wind gauge (acoustical or mechanical), complete weather wtaions, e.g Vaisala WXT 510 and other sensors on request
	Time:	High accuracy GPS - date and time (pps, 1ms accuracy)
	Power supply:	Wind generators 25W up to 75W @ 20 knots wind speed
	Applications:	• Flood warning • Environmental monitoring • Water level and tide monitoring • Coastal protection
	LOG_aLevel can be customised to fit your needs. Please feel free to ask for further details.