Redox probe range for making redox / ORP measurements in process environments

Redox Probe Range

For the measurement of reduction - oxidation potential (Redox) measurements in industrial environments, we offer a full range of Redox probes to cover a full spectrum of applications.

Firstly - there are a number of different terms used for a device used to measure Redox, we break these down as follows:-

Redox Sensor

We use this term to broadly cover any type of device used to measure Redox.

Redox Electrode

The term 'Redox Electrode' is used to refer to glass bodied Redox sensor range. These can be used to measure Redox in some industrial environments, normally if used in conjunction with an inline Redox sensor housing. If you're looking for a replacement Redox sensor for this type of application then please refer to the Redox electrode section.

Redox Probe

A Redox Probe is a term we reserve for our industrial bodied Redox sensors.

Our Redox probe range have a number of different body designs and have some variation in the materials of construction for the wetted parts (those parts that are in contact with the solution being measured). Commonly the wetted parts are manufactured in materials designed for immersion in concentrated chemicals where materials less suited to the environment would be corroded.

Every Redox probe within our range includes a double junction to prevent electrode poisoning and increase the lifespan of the sensor.

Redox Probe Reference

For our industrial Redox probe range - we only use an annular reference, also known as a peripheric junction. This is because an annular reference is non-blocking, which guarantees continuous Redox measurement. This significantly reduces the requirement to remove the probe to be cleaned which is important to our process critical industrial customers.

The annular reference is also available shaped into our tuff tip design. The tuff-tip is designed to reduce the lateral visibility of the platinum electrode, which in effect means that platinum is not protruding further than the reference material.

For example - with a tuff tip Redox probe if the probe is placed on a flat surface with the platinum electrode facing down - the platinum will not be in contact with the flat surface - only the tuff tip will be. This means that if a tuff tip redox probe is placed into a pipe with a flow or into an open vessel with an industrial mixer creating agitation - no solids within the solution will be able to cause mechanical damage to the platinum reference electrode.

We've tried to limit our reference materials to the two most chemically resistant and mechanically strong types available. One is a Redox probe with a ceramic reference, and the other is a Redox probe with a PTFE reference. Both are very chemically resistant and offer a non-fouling reference junction to ensure rapid changes in Redox value to be monitored.

Redox Probe Body

We understand that industrial Redox probes are normally kept in process for the duration of their working lives. These are normally either screwed in-place or mounted into a riser tube for insertion into a vessel. As such our Redox probe range all include threaded connections for either or both of these two purposes.

The second key factor is the materials of construction. For our Redox probe inserts we have used PVC, and for the remainder of our Redox probe range we have standardised on PVDF (Kynar) for greater chemical compatibility.

Platinum Redox Probe

All of the Redox sensors within our Redox electrode and Redox probe range use an inert metal electrode manufactured in platinum. We use high temperature proprietary polymerised reference materials and a double junction to the silver silver-chloride (Ag Ag-Cl) reference in the construction of all of our industrial Redox probes.

Historically we have offered a metal electrode manufactured in gold as well as calomel references - for very strong oxidising reactions (such as Aqua Regia) please get in touch with our sales office we can discuss your requirements.

Our Redox probes are available ex-stock with a BNC process connector, if you require a different style of connector then please take a look at the connections available as part of the pH sensor connections type and if in doubt - just get in touch!

Redox Probe Range


RS183-20B

RS183-20B

Replacement pH probe model PS183-20B

The 3/4" BSP thread is designed to fit as Redox probe insert into our RS90S dip mounting pH probe assembly when a replacement is required

The replacement Redox probe is manufactured in PVC, with a platinum band reference and non-fouling annular ceramic reference junction to ensure accurate and constant Redox measurements.

The RS183-20B is also fitted with a Redox reference guard and 20 feet of connecting cable with a BNC process connector for easy connection to a Redox controller

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RTT183-20B

RTT183-20B

Tuff Tip Redox probe RTT183-20B is a replacement redox probe insert for the RTT90S Dip Redox Assembly

The RTT183-20B has a 3/4" BSP thread at the rear of the Redox probe and simply screws into place at the base of the dip probe assembly

The RTT183-20B has a platinum disc and our porous tuff-tip reference.

This ensures that the reference material is constantly in contact with the solution being measured to give accurate and rapid Redox measurements. The addition of the Tuff Tip makes this probe virtually unbreakable during normal operation.

Perfect for use in continual Redox measurements in tanks and vessels with an installed mixer and rated for use from 0 - 60ºC

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RTT283-20B

RTT283-20B

The RTT283-20B Tuff Tip Redox Probe is manufactured in PVDF for chemical resistance in concentrated chemicals.

With a rear mounting 3/4" BSP thread the RTT283-20B simply screws into place in the RTT100S Dip Redox Sensor assembly replacing the existing probe.

With a PVDF body, platinum band, and tuff tip reference junction the PTT283-20B offers precision Redox measurements and an excellent response time even in concentrated chemicals.

The RTT283-20B is suitable for operation in temperatures up to 100ºC and should only be paired with the PTT100s Dip Sensor assembly.

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9126-10B

9126-10B

Inline Redox probe model 9126-10B has a 1/2" male thread which is designed for mounting in a tee piece inline so that the Redox probe forms part of the pipework.

The 9126-10B is a single junction Redox probe, with platinum band and an annular reference junction which ensures a rapid response time to chaining Redox values during Redox measurements.

Designed for inline mounting into pipework for continual online Redox measurement with non-fouling reference the 9126-10B only needs to removed for periodic calibration.

With a Kynar (PVDF) body and exposed glass the 9126-10B inline Redox probe is rated for temperature use from 0 - 100ºC and fitted with 10 feet of connecting cable and BNC plug as standard

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1698-10B

1698-10B

A flat platinum disc is used as a reference in the 1698-10B Double Junction Redox probe unlike in other designs of Redox probe

The flat platinum reference in the 1698-10B offers precision Redox measurements and an excellent response time. In addition the recessed flat platinum reference removes the working part of the probe from any solids or other elements which would cause damage to a traditional Redox probe.

Manufactured in PVDF and with dual 3/4" male threads the 1698-10B can be installed either into pipework or into a Redox dip probe assembly. for continual Redox measurements.

The PVDF housing and ceramic reference offer excellent chemical compatibility and its rated for temperature usage from 0 - 100ºC, while the specially engineered flat platinum disc means that this Redox probe is virtually unbreakable.

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R8126-10B

R8126-10B

Our online Redox probe the R8126-10B has a double junction and an exposed platinum band reference with annular ceramic reference junction all kept behind a bulb guard, to increase response time while minimising the likelihood of damage occurring due to impact from foreign bodies within the measured solution.

The exposed platinum band reference ensures unparalleled response times and precision measurements for continual online Redox measurements.

The R8126-10B has a has a two 3/4" male threaded ends allowing into to be mounted into a riser tube for a dip mounting Redox sensor assembly or to be mounted into pipework as an inline Redox sensor assembly.

With either option the R8126-10B constant online measurements accurately and with an excellent response time and with a Kynar (PVDF) body offers excellent chemical compatibility and is rated for use in temperatures from 0 - 100ºC

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R8000-10B

R8000-10B

Industrial Redox Probe R8000-10B combines our flat platinum disc technology with a ceramic magna-flow liquid junction and double junction reference to offer an extremely robust Redox probe.

The liquid magna flow junction ensures the reference is in constant contact with the measured solution to ensure an excellent response time to changing Redox values and precision measurement of the Redox value itself.

Designed for industrial usage, the R8000-10B has our integral double junction ensures that the R8000-10B is immune to electrode poisoning and the Kynar (PVDF) body has excellent chemical compatibility even in concentrated chemicals.

Industrial Redox Probe R8000-10B is fitted with dual 3/4" male threads for dip or inline mounting this electrode is rated for temperature usage from 0 - 100ºC

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R800T-10B

R800T-10B

The PTFE junction Redox Probe R800T-10B takes our flat platinum disc technology one stage further and combines this with a porous teflon junction.

When Redox measurements are required in highly corrosive environments the R800T-10B is an engineered solution designed to give accurate and responsive Redox where other Redox probes cannot.

The PTFE junction in the R800T-10B is highly resistant to almost all concentrated chemicals and the double junction resists electrode poisoning. The Kynar (PVDF) body is highly chemically resistant and has a dual 3/4" male threads for mounting into a riser tube for a dip mounting Redox sensor assembly or to be mounted into pipework as an inline Redox sensor assembly.

The PTFE junction R800T-10B is suitable for a temperature range of 0 - 100ºC.

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3698-10B

3698-10B

The 3698-10B is a long life Redox probe designed for use with a riser tube as a dip mounting Redox sensor assembly.

The 3698-10B boast a number of technical advantages - with a double junction to resist poisoning, a non-fouling annular teflon reference with an exposed platinum band to offer precision Redox measurements and a rapid response time to changing Redox values.

The PVDF body is highly chemically resistant and the PTFE reference is resistant to almost all concentrated chemicals.

With a rear mounting 3/4" male thread the 3698-10B is easy to install into a PVDF rise tube and the reference guard is designed to minimise breakage due to impact where solids are present.

With an extended body and manufactured to the highest specification - the long life redox probe 3698-10B is the go to sensor for processes with strong reduction or oxidation reactions.

The 3698-10B long life Redox probe is rated for temperature usage from 0 - 100ºC

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