ChemScan RDOX Optical Dissolved Oxygen Probe

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CHEMSCAN RDOX PROBE

The ChemScan rugged dissolved oxygen (RDO) RDOX probe uses optical technology for measuring dissolved oxygen (DO) in demanding wastewater process environments, low-maintenance, easy to use and integrated design.

​| RDO BROCHURE |

The RDOX Probe lets NPDES permit holder monitor influent, effluent and treatment processes, responding quickly to oxygen and temperature changes for more accurate result

ELIMINATE MAINTENANCE

• ​Operates with very low drift for long periods of time
• Responds quickly and accurately to oxygen and temperature changes across the full range.
• Delivers consistent, reproducible results (<0.05 mg/L).
• Eliminates membranes and filling solutions

SIMPLE DESIGN

• Automates setup and reduces error-calibration coefficients are loaded into sensor cap.
• Flexible communications-Standard 4-20 mA, Modbus/RS485, direct or using Control Point 2.0 with local display 
• Direct connection eliminates the need for a transmitter or controller, and requires only 8 to 36 VDC power

COST EFFECTIVE

• Runs aerators efficiently and mitigates risks.
• Twist lock connection allows interchangeability with all ChemScan probes
• Easily view and filter data using In-Situ telemetry systems and HydroVuTM Data Services.

ROBUST CONSTRUCTION

• Resists abrasion and photobleaching effects.
• Withstands high salinity environments-inert, non-corrosive materials used to construct probe body and sensor.
• Insensitive to interferences that plague membrane-based sensors (hydrogen sulfide, chloride, ammonium, and others).

KEY ADVANTAGES

• Long-lasting calibration—the probe maintains calibration and operates with no drift over long-term deployments, delivering consistent, reproducible results.
• Automatic setup—the ChemScan RDOX Cap is pre-loaded with factory calibration coefficients, serial number, and manufacture date. ChemScan RDOX can use Classic, Fast, or ChemScan RDOX Cap. Ships with ChemScan RDOX Cap.
• Sensor health diagnostics—internal indicators alert you about excessive wear and remind you about regular maintenance intervals.
• Fast response—with patented signal processing, the probe responds quickly and maintains stability, even in dynamically changing conditions.

OFFERINGS

• Simplified integration—use in conjunction with the ChemScan Control Point 2.0, SCADA/PLC Systems, or telemetry systems and HydroVu™ Data Services. the probe maintains calibration and operates with no drift over long-term deployments, delivering consistent, reproducible results.
• Compliance certified—CE, FCC Class B heavy industrial immunityand emissions certifications. 
• Twist-lock cable options—10m or custom lengths.

Applicaton

MUNICIPAL/INDUSTRIAL WATER AND WASTEWATER TREATMENT

​TECHNOLOGY
The low-maintenance ChemScan RDOX Probe measures DO and provides extremely stable, accurate results. When the probe initiates a reading, a blue LED emits blue light, which excites lumiphore molecules in the sensing element. Excited lumiphore molecules emit red light, which is detected by a photodiode. Oxygen molecules quench the excited lumiphore molecules and prevent the emission of red light—a process called “dynamic luminescence quenching.” Determination of DO concentration by luminescence quenching has a linear response over a range of concentrations

Lumiphore molecules are excited by blue light and then emit red light, which is detected by a photodiode.  Optical electronics report DO concentration in mg/L.

RDO ON-DEMAND WEBINAR:
"How to Get the Most From Your Dissolved Oxygen Sensors in Wastewater Treatment" Presented 5/7/2020 by Dave Wilson and Kate Haga.
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