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OxyTechw² RDO Pro-X Dissolved Oxygen Sensor

Optical Sensor for Dissolved Oxygen Monitoring

The OxyTechw² RDO Pro-X Sensor uses the latest optical technology for measuring dissolved oxygen (DO) in demanding wastewater, drinking water, industrial effluent and surface water environments.

The sensor uses optical sensing techniques that provide a fast response and do not need a flowing sample to operate. There is no need for routine calibration, enabling manual intervention to be kept to an absolute minimum. Periodic validation of the measurement can be done as part of standard quality assurance performed by the operator. The sensor uses an extended life cap that does not have a finite life, though replacement is recommended every two years. When replacement of the cap is required the operation takes only a few minutes with no need to enter complex set up codes and no need to re-calibrate.

The need for manual cleaning of the sensor is kept to a minimum through use of Partech’s FlexTech mounting system which places the sensor below the surface of the tank, away from the floating fats and grease whilst keeping the sensor face moving to prevent the build up of a biofilm.

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  • General Specification
  • Measurement Specification
  • Ordering Information & Spare Parts
Dimensions (hxwxd)Ø47mm, 203 mm long
Weight0.8 kg
Protection ClassIP68
Enclosure MaterialBody - ABS, Titanium Temperature Probe with Polyurethane coated cable

Cap - ABS, Polycarbonate/Polymethyl/methylacrylate
Cable EntriesIntegral Cable Gland, Black Acetal, 316 Stainless Steel
Cable Length10 metres standard, 100 metres maximum
Interface to Monitor
Power Supply12 VDC from Monitor
Sensor OutputModTechw², RS485
Environmental Data
Operating/Storage Temperature0 to 50ºC
Pressure Rating210 mWC
FlowNo flow necessary
Measurement Characteristics
Principal of OperationBlue/Red Luminescence Quenching
Light SourceBlue LED
Accuracy+/- 0.1 mg/l on 0-8 mg/l range
+/- 0.2 mg/l on 8-20 mg/l range
+/- 10% reading 20 to 50 mg/l
Resolution0.01 mg/l
Display Resolutionsee 7300w² Monitor
Response TimeT90 <45 seconds, T95 <60 seocnds @ 25°C
Flowrate1 cm/second
Unitsmg/l, ppm, %Sat
Range0-50 mg/l (ppm)
0-200 %Sat
Temperature MeasurementThermistor
Temperature Accuracy± 0.1°C
Temperature Resolution0.01°C
Part NumberDescription
226770OxyTechw² RDO Pro-X Sensor (Range 0-50 mg/l, Cable Length: 10 metres)
Mounting Shaft with Self Clean Option
226665FlexTech Shaft Assembly with Flexible Coupling (OxyTechw² RDO Pro-X Sensor, 1.0 metres)
226666FlexTech Shaft Assembly with Flexible Coupling (OxyTechw² RDO Pro-X Sensor, 2.0 metres)
226667FlexTech Shaft Assembly with Flexible Coupling (OxyTechw² RDO Pro-X Sensor, 3.0 metres)
Mounting Shaft without Self Cleaning
226661FlexTech Shaft Assembly (OxyTechw² RDO Pro-X Sensor, 1.0 metres)
226662FlexTech Shaft Assembly (OxyTechw² RDO Pro-X Sensor, 2.0 metres)
226663FlexTech Shaft Assembly (OxyTechw² RDO Pro-X Sensor, 3.0 metres)
Mounting Brackets
223980FlexTech Sensor Bracket (Handrail Ø40 to 60.3 mm)
224567FlexTech Extension Bracket Assembly (500mm Long, Handrail Ø40 to 60.3 mm)
Replacement Cap
226668OxyTechw² RDO Pro-X Replacement Cap

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FlexTech Flexible Sensor Shaft

FlexTech OxyTechw² RDO Pro-X Sensor Mounting Shafts

This mounting bracket is designed to work with Partech's IR and Soli-Tech 20v2 Sensors

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OxyTech RDO Pro-X Cailbration Cup

OxyTechw² RDO Pro-X Sensor – Calibration Cup

Calibration Aid for the OxyTechw² RDO -Pro-X Sensor

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OxyTech RDO Prox Cap

OxyTechw² RDO Pro-X Sensor – Replacement Cap

Replacement cap for OxyTechw² RDO-Pro-X Sensor

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Flowcell for OxyTechw² RDO Pro-X Sensor

Flowcell – OxyTechw² RDO Pro-X Sensor

Flowcell for OxyTechw² RDO Pro-X Sensor

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