Retrofitting a Lake Level Monitoring System
The old SDI-12 encoder and float system was replaced with a pressure transducer. A MultiHop Data Radio is wired to the pressure transducer and communicates using Modbus. A solar panel powers both the pressure transducer and MultiHop Data Radio.
The MultiHop Data Radio transmits the level measurements back to the dam’s control office and displays the measurements on a RedLion HMI display located in the dam’s office to make monitoring the lake level easy for the dam operators.
The new wireless monitoring system was installed by USGS field representative Brady Long.
The new lake level monitoring system has been operating for almost a year. Upgrading to a wireless system eliminated the need to run new wiring conduit and resulted in a dependable lake level monitoring solution. Lake level measurements are transmitted to the dam office for easy access.