iDO-306 Dissolved Oxygen Sensor

iDO-306 Online integrated sensor is a luminescent dissolved oxygen physics of substances on the principle of excitation fluorescence quenching made based on the design. Blue light emitting diode (LED) in the emitted fluorescent substance on the fluorescent surface of the cap, the inner surface of the fluorescent substance is excited, emitting red light, by detecting the phase difference between the red and blue, and comparison with the internal calibration value to calculate the concentration of oxygen molecules, the temperature-compensated output automatically final value. Without electrolyte, the polarization will not polarization Without consuming oxygen, without affecting the flow rate Built-in temperature sensor, automatic temperature compensation Interference is not sulfide and other chemicals Drift is small, fast response, more accurate measurement Maintenance-free, long life cycle, the use of lower cost Fluorescent cap replacement is simple RS-485 interface, Modbus-RTUprotocol

Product Parameters

Model iDO-306
Measuring principle Fluorescence
 Measuring range 0-20mg/L (0-200%Saturation 25℃)
 Resolution 0.01mg / L, 0.1 ℃
Accuracy ± 2% FS, ± 0.5 ℃
Temperature compensation Automatic temperature compensation ( Pt1000)
Output method RS-485 bus, Modbus-RTU protocol
Working conditions 0 ~ 45 ℃, <0.2MPa
Storage temperature -5 ~ 65 ℃
Installation Immersion installation
Cable length 5 meters, Other lengths can be customized
Power 0.1W@12V
Power supply 12~24VDC
Protection class IP68
Calibration Two-point calibration
Fluorescence lifetime cap Guarantee for one year (normal use)
Sensor housing material POM And 316L stainless steel