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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.

For specialist advice call:

+44 (0)1726 879800

Online Enquiry
  • Overview
  • General Specification
  • Measurement Specification
  • Ordering Information & Spare Parts

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.

The sensor is part of the WaterWatch² family and works with our 7300w² Monitor. It can also be combined with our TurbiTechw² LA sensor to provide an extremely cost effective package for controlling activated sludge plants.

Physical
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 EntryIntegral Cable Gland
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
LocationIndoor/Outdoor
Pressure Rating210 mWC
FlowNo flow necessary
Maintenance
ServiceThe optical cap for the sensor should be replaced every 24 months

Periodic cleaning is required at a frequncy determined by the application. Our self cleaning shaft option is highly recommended, this eliminates manual cleaning between calibrations.
CalibrationThe sensor is inherently stable, calibration should be carried out to suit the application. Our recommendation is yearly
Measurement Characteristics
Principal of OperationBlue/Red Luminescence Quenching
Iron/Silver Electrode Combination
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 Range0 to 50°C
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)
226771OxyTechw² RDO Pro-X Sensor (Range 0-50 mg/l, Cable Length: 20 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 Cap

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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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To speak with one of our specialist advisors, call

+44 (0)1726 879800


or complete our

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