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- COD/BOD/TOC Sensor
COD/BOD/TOC Sensor
The Spectral Absorption Coefficient (SAC) at 254 nm helps determine the Organic Content of a water sample but also the COD, TOC and BOD parameters by applying the appropriate correlation coefficients.
Measurement principle:
The COD probe uses UV absorption at 254 nm to measure organic compounds dissolved in water. This absorbance is correlated with the concentration of TOC, COD and BOD to provide a high-performance probe requiring no consumables.
A reference measurement at 530 nm is used to compensate for the presence of particles in the sample that also absorb UV light and to establish the Turbidity parameter.
The use of a state-of-the-art high-performance UV LED, combined with rigorous ignition management, offers an optimal variance of the signal.
Specifications:
Light sources: LED UV 254 +/- 5nm and 530 +/- 5 nm
Optical paths: 2mm
Compensation: Turbidity at 530 nm/ Internal temperature
Ingress Protection rating: IP68
Max. immersion depth: 50 meters
Maximum pressure: 5 bars
Dimensions (D x L) (mm): 48x371 mm
Body: Stainless steel 316 (1.4401)
Optical windows: Quartz (Corning 7980) Cable: Bare wire with polyurethane sheath
Standard cable: 3m
Signal interface: Modbus1 RTU (RS-485)
Sensor power supply: 5.4 V at 26 V DC