The RLS is mounted above the water surface e.g.: at bridges or auxilliary constructions. Its solid, relatively light and water-proof housing is easy to install. Its extremely low energy consumption (active: <12mA @12V), the large power supply range and standardized interfaces make the OTT RLS very flexible for different of applications.

The RLS covers a measurement range of up to 35m. It is specifically designed for the use in open air locations that have no requirement for mains power supply. The special flat antenna design construction and its minimal energy consumption makes the OTT RLS a economical, practical and reliable alternative to conventional level gauges.

• The OTT RLS uses a energy-efficient impulse-radar technology for measuring water levels. During each measurement the sensor sends radar pulses down to the water surface, the pulse are then reflected from the surface of the water and detected by the receiving antenna of the OTT RLS.
• The time from transmission until reception of the reflected pulse (time delay) is longer the further the OTT RLS is from the water surface and thus the lower the water level. This correlation is used by the OTT RLS to determine the time delay and caculate the distance to the water surface

• Extremely low power consumption - ideal for remote locations with no mains power supply
• Simple mounting - Swivel mount device for easy alignment of the sensor
• Uncomplicated system integration - standardized interfaces (4...20mA & SDI-12) for the communication with data loggers
• Compact and solid design - long sensor life with minimal maintenance
• No stilling well construction needed - sensor is outside of the water
• Influence of waves are compensated mathematically - values are compareable to 'stilling well' data
• Non-Contact measurement - secure measurements at flood events

Water level measurement

Electrical data

Cable connection

Material

Alignment range swivel mounting devive

Dimensions & weight

Environmental conditons

Type of protection

EMC limits