Hydroelectric Dissolved Oxygen MonitoringProject Overview
A large Midwest Power Utility operates a hydroelectric plant. Their FERC (Federal Energy Regulatory Commission) permit requires that they monitor the water quality upstream and downstream of the plant.
NexSens Technology was contacted help develop and setup a real-time system that would monitor water quality and make the data available in real-time at the plant's office.
System Description
Near the upstream reservoir of the power plant, two YSI 6600EDS sondes are deployed at different depths to monitor water quality before flowing through the hydroelectric plant into a river. A 50' cable connects the sondes to a NexSens iSIC data logger, where it is then sent directly to the 4100-base station and monitored using NexSens iChart software.
Further downstream, another YSI 6600EDS sonde is deployed through a deployment pipe attached to a bridge. A 4100-iSIC then collects the data from the sonde at fixed intervals and sends it over license-free radio waves to the base station. At yet another bridge site further downstream, a fourth YSI 6600EDS monitors the water's quality. Radio waves transmit the data to a nearby 4200-iSIC, where it is sent through a telephone line back to the base station.
With the help of NexSens Technology and YSI, the plant will instantly know if there are any inconsistencies in the water quality from before and after it passes through the hydroelectric plant. | NexSens 1001 | iChart software | NexSens 4200-iSIC | iSIC data logger with radio-to-phone telemetry | NexSens AVSS241608 | Stainless steel enclosure, 24" x 16" x 8" | NexSens A56 | Unistrut mounting kit | NexSens A22 | Solar power kit, 20-watt | NexSens A41 | Omni antenna, radio frequency, 890-970 MHz | NexSens A31 | RF cable, low-loss, 10' | NexSens A76 | Telephone surge & lightning protection | NexSens 4100-iSIC | iSIC data logger with spread spectrum radio telemetry | NexSens A55 | Pole/wall mounting kit | NexSens A38-P | Ground kit, pipe attachment | NexSens A22 | Solar power kit, 20-watt | NexSens A44 | High gain antenna, radio frequency, 3 dB | NexSens A36 | RF cable, micro-loss, 6' | YSI 6600E-00 | YSI 6600EDS V2 Sonde with temperature/conductivity sensor | YSI 6565 | pH/ORP sensor | YSI 6562 | Dissolved oxygen sensor, polarographic, rapid-pulse | YSI 6136 | Turbidity sensor with self-cleaning wiper | YSI 6025 | Chlorophyll sensor with self-cleaning wiper | YSI 6092 | Field cable, 50 ft. |
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