Yokogawa DO30G-NN-50-05-PN Dissolved Oxygen Sensor

The Yokogawa DO30G-NN-50-05-PN is a galvanic-type dissolved oxygen sensor designed for continuous monitoring of dissolved oxygen in liquid analysis systems, with wide use in wastewater treatment plants, aeration basins, potable water systems, aquaculture facilities, and environmental monitoring stations. It provides an electrolytic current proportional to oxygen concentration and supports integration with Yokogawa analyzers such as FLXA402 and FLXA21. Key specifications include a measurement range of 0–20 mg/L (ppm) or 0–100% saturation, integrated Pt1000 temperature compensation, operating temperature 0°C to 40°C, and a pressure range up to 100 kPa. The sensor requires a flow of at least 20 cm/s and uses PVC, stainless steel, and a fluoro-resin membrane construction; cable length is 5 meters (suffix dependent). Features include a replaceable membrane, fast response time, and long-term stability, and mounting options for immersion holder, floating ball holder, or guide pipe installation.