OTT RLS Radar Water Level Sensor
- Transmit & receive antenna enclosed in a lightweight, durable housing with flat antenna design
- Easily mounts to a bridge, frame, pipeline, or extension arm
- Connects to NexSens X2 data logging system via SDI-12 interface
|6310900192S||RLS radar water level sensor, FCC Version (25 GHz), SDI-12 & 4-20mA output|| |
|Usually ships in 1-2 weeks|
|C8P-24-P||8 conductor 24 AWG cable, PVC jacket, priced per ft.|
|Usually ships in 3-5 days|
|UW-FL3||UW plug to flying lead cable, 3m|
|Usually ships in 3-5 days|
The RLS non-contact radar level sensor with pulse radar technology is ideal for monitoring in remote areas and applications where conventional measuring systems are not suitable. The RLS accurately and efficiently measures surface water level With a non-contact distance range of up to 115 feet above water. The sensor is IP67 waterproof and has extremely low power consumption, making it ideal for solar-charged monitoring systems.
The radar level sensor uses a revolutionary level measurement technology, meeting the USGS accuracy requirement of +/-0.01 feet. Two antennas are enclosed in a compact housing and transmit pulses toward the water surface. The time delay from transmission to receipt is proportional to the distance between sensor and water surface. A sampling rate of 16 Hz (16 measurements/second) with 20 second averaging minimizes water surface conditions such as waves and turbulence. The RLS does not require calibration and is unaffected by air temperature, humidity, flood events, floating debris, or contaminated water.
- (1) Radar level sensor
- (1) 2-part swivel mount
- (1) Installation kit - Includes (4) 6x40mm wood screws & (4) plastic plugs
- (2) Double open-ended wrenches (10x13)
- (1) Factory acceptance test certificate (FAT)
- (1) Operations manual
Yes, the sensor does not have logging capabilities and needs to be integrated with a data logger. Sensor output options are SDI-12, SDI-12 via RS-485 and 4-20mA.
While ultrasonic sensors emit high frequency (20 kHz to 200 kHz) acoustic waves, radar sensors use radio-frequency signals (1GHz to 60 GHz) and readings are generally less affected by pressure, temperature and moisture changes.
The radar level sensor is mounted to a structure so that the radar beam is perpendicular to the surface of the water. A guide for installation and site selection can be found here: https://www.fondriest.com/pdf/ott_rls_install.pdf
In The News
In 2012, for maybe the first time, Lake Superior got scummy.
Visitors to the Apostle Islands National Lakeshore reported algae washing up on shore around the park.
It was a marked shift for the park, made up of a portion of the Lake Superior lakeshore and nearby islands. The water surrounding the park is cold, clear and typically low in nutrients: a combination unlikely to result in algal blooms.
But, in 2012 and again in 2018 after violent storms, major algal blooms—ones observed over multiple days—washed ashore and clogged the beaches with unsightly, scummy algae.
Not the usual suspects
The algal blooms of Lake Superior are not the algal blooms of warmer, more nutrient-rich lakes like Lake Erie.Read More
*This is part two of a series on changing ancient lakes. See part one, Lake Baikal, here .
Ancient lakes are facing a suite of rapid, unprecedented anthropogenic changes. While ancient lakes are spread around the world and vary widely from lake to lake, their incredible age, which can reach into the tens of millions of years, makes them unique resources to science.
They host incredible biodiversity and long sediment records. They are vital sources of food and water for millions of people. In a changing world, ancient lakes’ value as scientific and natural resources and the incredibly diverse life they contain is under threat.Read More
*This is part one of a two part story on ancient lakes. Part two , Lake Tanganyika, available here.
Lakes that have supported human settlements for thousands of years are starting to feel humans’ effects in rapidly developing and significant ways.
From climate change to nutrient loading to plastic pollution, ancient lakes are straining under some of the least welcome contributions of humanity. The changes could have consequences for the diversity of life within the lakes and the human populations that rely on it.
And, while ancient lakes have been around long enough to weather past climatic changes, the changes occurring now are so rapid, the end result is uncertain.Read More