Product features: Efficient and robust radar technology design: OTT RLS (radar level gauge) is a non-contact radar liquid level gauge for surface water level measurement, the liquid level is measured using pulse radar technology, this kind of energy saving, non-contact measurement technology makes OTT RLS in measurement is not affected by temperature gradient, the water pollutant and the influence of sediment, thus it can be to obtain accurate measurements. Easy installation: OTT RLS is through the launch to the surface of the radar pulse signal to measure, so he can be installed vertically on the surface, such as bridge or other auxiliary building, the sturdy, lightweight and waterproof shell makes it very easy to install, with generic connection device (universal hanger), so the probe can easy alignment, even in the uneven place also is very convenient. Principle of measurement: OTT RLS with energy-saving pulse radar technique measure the liquid level, as shown in the above front plate of transmit and receive two smooth antenna, each time measuring radar pulse signal transmitting antenna launch to the surface, the pulse signal after the water has been detected by the receiving antenna, pyrometer from transmitting to receiving reflect back to the surface of the pulse signal of the time, delay time depends on the distance OTT RLS with water, OTT RLS is using delay time and distance to the surface for linear relationship between the measurement of liquid level (distance). Fluctuation compensation: OTT RLS realizes independent measurement about 16 times per second. After completing a measurement cycle, the obtained mean value will be calculated as the output of the result. By calculating the mean value, zui will be reduced the impact of fluctuation on the measurement result. Product application: OTT RLS specially designed for outdoor measurement, due to its horizontal antenna structure, low energy consumption, wide range of input voltage and compact waterproof casing, make the user cannot get electricity from power supply network in place can still use it properly, because of its radar sensor USES a non-contact measurement technology, in extreme places it has incomparable advantages in measurement, therefore, the ideal of OTT RLS applications are as follows: A trench containing a large amount of flotsam and sediment The growth of a large number of water plants Some remote places that can only be powered by alternative energy sources Irrigation channels (sensors need to be added) Technical parameters: Liquid level measurement: Measurement range: 0.8-35 meters Measurement accuracy: + / - 3mm Measurement time: 20 seconds (SDI 12) or 30 seconds (4-20ma) Wave antenna beam Angle (wide) : 12 ° Electrical parameters: Power supply range: 9.6-28v DC, typical: 12-24v DC Power consumption during measurement: < 149mV (< 12mA at 12V) Power consumption in non-measured state: < 1mV (< 0.05mA at 12V) Communication interface: 4-20ma, sdi-12, rs-485, two-wire system (sdi-12 protocol) Size and weight: Dimensions (length * width * height) : 222mm * 152mm * 190mm Weight (including bogie) : about 2.1kg Operating temperature: - 40 - + 60 ℃ Storage temperature: - 40 - + 85 ℃ Relative humidity: 0-100% Material: Shell: engineering plastic ASA (UV stabilized ABS) Antenna shield (front splint) : high integrated PTFE TFM PTFE Bracket: stainless steel 1.4301(V2A) Rotation Angle of universal bogie: Lateral axis: + 90 ° Longitude axis: plus or minus 15 ° Cable sealing layer range: Inlet (minimum - maximum diameter) : 4.0-7.0mm Outlet (minimum - maximum diameter) : 7.0-11.0mm Screw end peeling connection capacity: Fixed conductor: 0.25-2.5mm2 (average 24-12) ( Conductor with terminal sleeve and plastic ring: 0.25-1.5mm2 Protection level: Horizontal bracket: IP67 (maximum immersion depth: 1 m;Immersion time up to 48 hours)