Aerzen's AERprocess dissolved oxygen control is an integrated solution for controlling DO concentration and blowers in an activated sludge...
Works with an ultrasonic sensor on the outside of metal or plastic pipes
or larger. The new Greyline PDFM 4.0 is designed for flow troubleshooting
and spot checks. Displays, transmits, totalizes and data logs. Recommended
for wastewater, cooling water, sludge, slurries, chemicals and abrasives.