I need a replacement probe for a Jenway 3310?

I need a replacement probe for a Jenway 3310 can you recommend one?

Jenway 3310

The replacement probe as supplied by Jenway is the Epoxy bodied combination pH electrode this probe was also supplied with the Jenway 3305 and is currently supplied for the Jenway 3505. Camlab can supply the full range of Jenway probes or alternatives including Camlabs epoxy tough pH electrodes and a range of custom probes made to your requirements.

CAMLAB at WWEM 10-12th Nov 2010

Camlab are currently exhibiting at WWEM –  the leading trade show for water and environmental monitoring professionals.

This is the world’s largest environmental monitoring event, now being run for its fourth time.

Camlab are specialists in water analysis and process instrumentation and are demonstrating the latest Mantech automation equipment – QC titrate and BOD systems.

To see this system in action get down to WWEM for the last day Thursday 11th nov at Telford International Conference Centre, TF3 4JH

Whats the right electrode for a Hach HQD meter measuring Boiler Water

I have bought a Hach HQ40D for measuring boiler water and the supplied gel filled electrode is giving some erratic readings, have I got a faulty electrode?

The gel filled electrode is a general purpose electrode designed for a variety of applications, the measurement of boiler water is a specialised application and requires an electrode designed specifically for the job of measuring Low Ionic Strength water, such as boiler water. There is an electrode available for the HQ meters for Low Ionic Strength solutions here.

Whats the replacement model for the Jenway 4330 pH and conductivity meter?

Whats the replacement model for the Jenway 4330 pH and conductivity meter? And can I still get probes for the old meter?

Jenway 3540 pH Conductivity Meter

The Jenway 3540 is the replacement for the jewnay 4330 pH and conductivity meter. The Jenway 3540 is supplied with a pH probe, conducitvity probe and a temperature probe and is ready to use out of the box. The only thing you may want to add is a conductuctivity standard. The usual standard values are 84uS, 1413uS and 12.88mS.

The old probes for the 4330 are stil available and apart from the temperatre probe are compatible with the new unit.

The pH probe supplied is a JY/924.005 however any probe with a BNC connector can be used for example camlab Epoxy tough electrodes.

The Conductivity probe is a JY/027.013 is specific to the Jenway meters and can be used on both the 3540 and the 4330. The temperature probe for the 3540 is a JY/027.500 and the temperature probe for a 4330 is a JY/027.232

Whats the filling solution for the environmental electrode

I need to refill an Jenway environmental electrode Jy/924.050, whats the solution?

The refill solution for the jenway environmental electrode is Jy/025.160 and is available from Camlab  in a 100ml bottle.

The environmental electrode is a specialist electrode available from camlab for the measurement of clean natural waters. Many issues with pH measurement can be solved by simply using the correct electrode for the application. To get help on the best electrode for your application either email details of your application and meter to Support@camlab.co.uk or use the online chat on the website.

My Hach HQ40D doesn’t recognise my new ORP probe?

“I have just fitted my new ORP probe to my Hach HQ40D and the screen has come up with “probe not recognised” what should I do?”

Hach lange have recently introduced a new range of probes for the HQD meters including an ORP or Redox probe. Older meters don’t have the firmware to handle these digital probes so an update is required. Simply attach the USB interface to the Hach HQ40D, download the firmware update and follow the instructions in the PDF.

Once the software is installed the meter will recognise the new probes automatically.

Contact support@camlab.co.uk for more details and instructions

Does the Hach Sension range of meters include a carry case?

Does the Hach Sension range of meters include a carry case?

The Hach Sension meters are an established range of portable and benchtop electrochemistry meters for pH, conductivity and Disssolved Oxygen.

The portable meters are all supplied with a carry case.

High performance pH electrodes with replaceable junction

Camlab Rapid Epoxy and Glass pH Electrodes with Liquid Junction

Have you seen these new pH electrodes from Camlab?  They feature a liquid junction design similar to the Ross Sureflow® but at a fraction of the price.  It’s special design allows you to create a fresh junction by simply pressing the top cap of the electrode. This opens the lower portion a fraction allowing fresh electrolyte to flow through the gap. Releasing the cap traps a film of filling solution creating a brand new junction every time. Anyone trying to measure pH on samples with high protein content, sulphides or pectin will be all too familiar with the gradual poisoning of the junction and subsequent loss of performance and drift. EpoxyTough Double junction pH designs go some way to eliminating this but even these will die in time. Using the Camlab Rapid pH electrodes with liquid junctions will eliminate this and give you faster and better results for longer.

Pushing the top cap forces filling solution through lower portion creating a fresh junction

How do I measure the pH of a flat surface?

Spear tip

Flat tip pH electrode

The Camlab Epoxy Tough and Rapid pH electrodes both feature a flat electrode design which is ideal for measuring the pH of flat surfaces such as meat and cheese.

For softer materials you may find the spear tip models more useful. These allow you to penetrate the sample with probe.

Both these types have double junction references to avoid blocking caused by proteins and pectins.

pH electrode storage

Camlab pH Electrode Soaker storage bottle

 

 

To prevent the glass pH membrane and junction from drying out it is recommended to store your electrode in an electrode storage solution. The best solution for this is 50% saturated KNO3 and 50% pH 4 buffer in conjunction with a soaker storage bottle. pH buffer is used because the glass prefers a slightly acidic environment, adding the KNO3 avoids pH memory effect. Avoid using coloured pH buffers to prevent discolouration of the reference solution