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WaterTechw² pH8000 pH Sensor

Combined Sensor for pH and Temperature Monitoring

The WaterTechw² pH8000 Sensor has been designed to provide highly reliable pH and temperature measurements. The sensor uses a flat surfaced electrode which includes an extended reference path, these features combine to provide an extremely robust pH measurement, suitable for use in surface water, waste water and drinking water applications.

The electrode uses field proven flat surface, self-cleaning technology. The reference system is enhanced by the Extended Path Reference (ERP) design which provides a complex path to protect the reference in the presence of interacting ions such as proteins, silver and sulphides

 

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View Related Product Documents
  • Overview
  • General Specification - Dip
  • Measurement Specification
  • Ordering Information & Spare Parts

The WaterTechw² pH8000 sensor has been designed to provide highly reliable operation across the range of drinking water and wastewater applications. The flat faced electrode included the latest innovations in double junction reference with the ERP reference path.

For installation in applications where gross fouling is anticipated we recommend that the sensor is installed using our specially designed mounting system, with a flexible joint in the mounting shaft.
The flexible joint moves the sensor in the process, reducing bio-fouling and allowing rags to fall away from the assembly. This motion is similar to that achieved by using a floating ball assembly, with the added advantage of placing the sensor below the surface of the liquid. In applications where fouling is not expected or where there is insufficient space alternative mounting arrangements are available.

Physical
Dimensions (hxwxd)270 x ­Ø60 mm
Weight1.2kg inc 10 metres of cable
Wetted MaterialsBody: Black PVC, Nylon Cable Gland, Electrode: PPS (Ryton)
Seal MaterialNitrile
Enclosure RatingIP68
Cable Type4 core, 2 twisted pair, 5 mm O/D Polyurethane Coated
Cable Length10 metres standard, 100 metres maximum
Temperature Rating0 to +50°C
Pressure Rating2 Bar
Depth Rating20 metres
Thread for Mounting Shaft Connection1 1/2" BSPP Male
Interface to Monitor
Power Supply12VDC from Monitor
TypeModTech - RS485
Measurement Characteristics
Principal of OperationCombination pH Electrode with Extended Reference Path
Temperature: Silicon Based Linear Thermistor
Applicable UnitspH, °C
RangepH: 0 to 14 pH
Temperature: 0 to 50°C
AccuracypH: +/- 0.05 pH
Temperature: +/- 0.5°C
ResolutionpH: 0.01 pH
Temperature: 0.1°C
Service Requirement
CleaningSee FlexTech range of autoclean mounting options
Sensor ServiceElectrode Replacement - typically yearly
Part NumberDescription
225936WaterTechw² pH8000 Flowcell Assembly includes pH Electrode and Temperature Sensor (pH Range 0-14 pH, Temperature Range: 0-50°C, Cable Length: 5 metres)
224717WaterTechw² pH8000 Dip Assembly includes pH Electrode and Temperature Sensor (pH Range 0-14 pH, Temperature Range: 0-50°C, Cable Length: 10 metres)
224718WaterTechw² pH8000 Dip Assembly includes pH Electrode and Temperature Sensor (pH Range 0-14 pH, Temperature Range: 0-50°C, Cable Length: 20 metres)
Mounting Shaft with Self Clean Option
224726FlexTech Shaft Assembly with Flexible Coupling (WaterTechw² pH8000/Redox8000 Sensor, 1.0 metres)
224728FlexTech Shaft Assembly with Flexible Coupling (WaterTechw² pH8000/Redox8000 Sensor, 2.0 metres)
224730FlexTech Shaft Assembly with Flexible Coupling (WaterTechw² pH8000/Redox8000 Sensor, 3.0 metres)
Mounting Shaft without Self Cleaning
224720FlexTech Shaft Assembly (WaterTechw² pH8000/Redox8000 Sensor, 1.0 metres)
224722FlexTech Shaft Assembly (WaterTechw² pH8000/Redox8000 Sensor, 2.0 metres)
224724FlexTech Shaft Assembly (WaterTechw² pH8000/Redox8000 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 Electrode
224459WaterTechw² pH8000 Electrode (0-14 pH, TNC Connector)

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