One of the most common questions that engineers who work with applications that require pH sensors ask is, “How can I effectively extend the life of my pH sensor?”. While this question does not have a cut & dry answer, there are a few things you can do to help extend the lifespan of your pH electrode. In this article, we’ll offer some tips on how to do this!


Troubleshoot pH Sensors With A Step-By-Step Approach

You can systematically figure out the problem with your pH sensor by using a step-by-step approach, allowing you to quickly diagnose the issue and extend the life of the electrode. The first step is to check the analyzer by simulating a pH sensor. This can be done using sensor simulation kits that are designed to provide the same signals as actual analytical sensors. Next, you should do a visual inspection of the pH sensor’s cables. Look for any damage to the sensor’s wires, which could be the cause of the problem you’re experiencing. Next, perform a visual inspection of the pH sensor itself by looking for any signs of a blocked junction or process. Finally, check the sensor’s installation and setup by ensuring the process parameters and components are compatible. By using this step-by-step method of troubleshooting your pH electrode, you can extend its lifespan!


Temperature Effects

Another important factor to consider when attempting to extend the lifespan of a pH sensor is the temperature in your application. pH measurements in extreme temperatures will significantly reduce a sensor’s life. Typically, every 10°C decrease in temperature will double the pH sensor’s lifespan. While the temperature can not be just adjusted in all applications, it’s important to adjust the expectations of your pH sensor’s lifespan depending on the application it’s being used in.


Storage & Cleaning

One of the most effective ways to increase your pH sensor’s lifespan is to be vigilant about its proper cleaning and storage. Dirt or membranes on the surface of a pH sensor can reduce its lifetime and cause it to produce inaccurate readings. If you notice that readings become slow or the electrode is dirty, you should clean it using the method recommended by the manufacturer. Regarding proper storage, pH electrodes should always be stored in a solution, never dry. If your electrode has been stored in a dry environment, it should be rehydrated for at least 24 hours and calibrated before being used again.


Contact Sentrol Life Sciences!

If you have any questions about troubleshooting or maintaining pH sensors in your specific application, please don’t hesitate to contact our team at Sentrol Life Sciences! We represent industry-leading manufacturers of sensor and fluid control products for the biopharma, pharmaceutical, healthcare, and research & development markets of the Eastern United States. Contact us today for system analysis, troubleshooting, or on-site system service! Call us at (888) 877-1778 or fill out the contact form on our website, and a member of our team will get back to you as soon as possible!