Optical dissolved oxygen sensor (DO) ADS420

Smart, reliable, accurate DO measurement made easy. Designed to work the way you want to work, the new ADS420 utilizes the latest generation of drift-free optical measurement technology – minimizing operational costs and removing the need for routine calibration. Featuring ABB's EZLink technology, users of ABB’s DO system benefit from plug-and-play connectivity, automatic sensor recognition / set-up, predictive diagnostics and enhanced measurement accuracy. Users benefit from: – No calibration required – No sensor drift – Fast speed of response – Minimized installation and maintenance time – Resistant to abrasion and photobleaching – No loss of performance, 2 year sensor cap life Data Measurement performance (dissolved oxygen) Range – 0 to 50 ppm (0 to 50 mg/l) Accuracy / maximum measured error – ±0.1 ppm (0 to 8 ppm) – ±0.2 ppm (8 to 20 ppm) – ±10 % of reading (20 to 50 ppm) Resolution – 0.01 ppm (mg/l) Response time – T90 <45 sec; T95 <60 sec @ 25 °C (77 °F) Measurement performance (temperature) Range – 0 to 50 °C (32 to 122 °F) Accuracy ±0.1 °C (0.18 °F) Maintenance – Sensor cap replacement 24 months Environmental data – Operating temperature range 0 to 50 °C (32 to 122 °F) – Pressure limit 10.3 bar (150 psi) maximum – Flow rate None required – Storage temperature range –5 to 60° C (23 to 140° F)