The maintenance free FermoTrode sensors are designed for measuring pH in pharmaceutical and biotechnological industries and fit in the MasterFit and RetractoMaster housings without need for pressurization. The Everef-F reference cartridge ensures that the reference electrolyte Skylyte remains free of silver and precipitations. It withstands steam sterilization.
The FermoTrode is not suited for contact with caustic soda like in CIP-cleanings or for use in media containing citric acid.
What is a refillable sensor and why would I choose it?
What is the expected lifetime of my pH sensor?Expected pH sensor lifetime is dependent on the application. Exposure to strong chemicals, elevated temperature, fluctuating pressure, and solid build-up can all impact the sensor life. As the sensor ages, a sluggish response may become more apparent, and will require more frequent calibrations to compensate for this change. The overall health of the Arc pH sensors can be seen using the quality indicator in ArcAir software. Click to learn more about sensor lifespan and expiration in the Knowledgebase article.
What solution should I store my pH or ORP probe in?Hamilton recommends storing pH and ORP probes wet in either Hamilton Storage Solution (Ref 238931) or in 3M KCl solution. Click to see the pH/ ORP Sensor Storage and Regeneration Knowledgebase for more information.
What is A-length and how is it measured?A-length refers to the insertion depth of the sensor. It's generally measured from the base of the PG13.5 mounting threads but can vary with certain styles of sensors.
Documentation and Certificates for Sensors and Liquid Solutions
pH and ORP Sensor Installation TipsThis brief article describes some common considerations with sensor installation and removal, as well as best practices for mounting.
pH and ORP Sensor CleaningAnswers to common questions on how to clean off build-up and coating on pH sensors and ORP sensors.
pH and ORP Sensor Reference DesignPre-Pressurized vs. refillable vs. polymer vs. viscous electrolyte? This article discusses basic pH reference design benefits for each product family.
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