APG PT-500 Submersible Pressure Transducer
- +/- 0.1% full scale accuracy with automatic temperature compensation
- Integrated lightning and surge protection
- RS-485 Modbus interface for connection to NexSens data loggers
|549014-1951||PT-500 submersible pressure transducer with RS-485 Modbus output, 6 PSIG range, 0.1% FS accuracy, 35 ft. cable|
|Usually ships in 1-2 weeks|
|511328||PT-500 hydrophobic vent cap|
|122774-0028||PT-500 desiccant cartridge|
The APG PT-500 submersible pressure transducer is designed for use in a wide variety of environmental monitoring applications. The sensor is ideally suited for measuring water level in weirs, flumes, small to large streams, ponds, lakes, irrigation channels, and groundwater wells. The sensor is installed in a fixed location below the minimum expected water level, and a cable containing the sensor signals and vent tube is connected to a data logger mounted above flood stage.
The PT-500 measures the combined pressure exerted on it by the atmosphere and the head of water above it. A vent tube in the cable automatically corrects for changes in barometric pressure, and measured values are mathematically compensated for all linearity and temperature errors. With +/-0.1% Full Scale accuracy, the PT-500 provides high performance and accuracy over a wide range of operating conditions. The housing is constructed with laser welded 316L stainless steel.
In The News
Most of the time when we think of monitoring streams and rivers, we think of water, and for a good reason. However, in some parts of the country, many rivers are intermittent—dry at some point in space or time—and therefore have not had equal amounts of attention from ecologists and hydrologists.
A project led by a University of Oklahoma (OU) team is working to change that with the help of citizen scientists. OU assistant professor of biology Daniel Allen spoke to EM about the project and why it's so important to track intermittent rivers.
“ The Nature Conservancy (TNC) started the Citizen Science program in Arizona's San Pedro River and the nearby Cienega Creek in, I think, 2001,” details Dr. Allen.Read More
The North Carolina Wildlife Resources Commission ’s Inland Fisheries Division has been working to restore brook trout in the state. Coldwater research coordinator Jacob Rash, who works with the brook trout team technicians on this project, spoke to EM about the work.
“In North Carolina, brook trout are our only native trout species,” explains Mr. Rash. “With that come biological and ecological considerations as well as cultural importance. A lot of folks here grew up fishing for brook trout with their relatives, so it's an important species that we work to try to conserve. We've done quite a bit of work to figure out where those brook trout populations are and what they are, in terms of genetics.Read More
Each year in Germany, as many as 450,000 living fish undergo live animal experiments to test how fish-friendly hydroelectric power plants in the country are. The idea is to discover how readily the fish can move through hydroelectric turbine installations in order to ultimately reduce mortality rates.
Of course, subjecting live fish to a potentially deadly test to save others is a bitter irony. And it's one that a team of scientists from the RETERO research project hopes to eventually mitigate with a robotic fish for testing.
EM corresponded with Olivier Cleynen and Stefan Hoerner from the University of Magdeburg about the complex flow conditions that set the parameters for the project.Read More