SENSBLUE RS-485 Dissolved Oxygen Probe AT-SB-PROBE-DO-P-C1

Excitation light shines on the fluorescent membrane, exciting its surface substance to emit fluorescence. Oxygen concentration on the membrane surface directly affects this fluorescence extinguishing time. The sensor calculates oxygen levels by detecting the phase difference between fluorescence and excitation light. It then compares this data with an internal calibration curve. Finally, the system outputs the accurate value after temperature and salinity compensation.