System for continuously monitoring dissolved gas in multiple water sources
Fisheries Bioengineering Symposium: American Fisheries Society Symposium 10
Colt J;White RJ;
American Fisheries Society
Dissolved gas pressures were continuously monitored with gasometers, which were connected to a Commodore-64 computer that recorded and displayed supersaturation levels on a monitor. A line printer provided a hard copy of the data. The system was protected from power outages by an emergency backup power supply. Power to commercially available pressure transducers was supplied from an external dual-voltage power supply. Calibration lines were fitted by a built-in linear regression calibration program. Each gasometer was fitted with a valve system for purging moisture from the silastic tubing. The gasometer core was protected from moisture and abnormally low pressure readings were eliminated.