OTT RLS radar water level gauge

Technical characteristics

Pulse radar, energy saving and efficient

Professional hydrological radar with built-in wave compensation to eliminate wind and bridge vibration effects

Non-contact measurement

Not affected by high water level, silt, garbage, plants, etc.

Not affected by temperature

Ultra low power consumption

Easy installation and low space occupation rate

Compact design and rugged housing (IP67)

Lightning protection design

Low maintenance cost

Integrated RS485 and SDI12 interfaces with analog output

Cost-effective

High precision-35 m range, accuracy 3 mm

 

Measuring principle

The OTT RLS radar water level gauge is a non-contact water level gauge, which uses pulse radar technology to measure the water level. This energy-saving, non-contact measurement technology makes OTT RLS free of temperature gradients, water contaminants and sediments during measurement. The effect of the measurement can therefore be obtained accurately.

 

OTT RLS uses energy-saving pulse radar technology to measure the liquid level. As shown in the figure above, there are two smooth antennas in the front splint for transmission and reception. During each measurement, the transmission antenna transmits the radar pulse signal to the water surface. After the pulse signal is reflected by the water surface, it is detected by the receiving antenna To. The time (delay time) of the pulse signal reflected from the transmission to the water surface depends on the distance between the OTT RLS and the water surface. The OTT RLS uses the linear relationship between the delay time and the distance to the water surface to achieve the liquid level (distance value) measuring.

 

OTT RLS's extremely low energy consumption (measurement status: current is 12mA at 12V), wide power supply range and standardized interface make OTT RLS can adapt to a variety of needs, it can be easily connected to a data recorder or remote data acquisition The system also has a high range of up to 35 meters.

 

Fluctuation compensation

OTT RLS achieves about 16 independent measurements per second. After completing a measurement cycle, the average value obtained by calculation will be output as the result. The average value will be used to calculate the bracket vibration caused by water surface fluctuations and wind or caused by vehicle driving. The impact of the bridge vibration on the measurement results is minimized, and such measurement results can be comparable to the level values ​​measured in the still water well.

 

Application range

Various water level measuring stations and seasonal rivers are not suitable for underwater installations

Flash flood warning

Where high power consumption is required

Where the water flow is corrosive