The new generation of ISFET sensors improves product safety and precision in the food & beverage, life science and chemical industries. They are available with three different reference systems to suit every requirement.
Glass-free and unbreakable
Modern measuring technology is needed to produce food of consistently high quality. Glass sensors are commonly used for pH measurement, but this is risky since broken glass can contaminate entire production batches. The unbreakable, glass-free Memosens CPS77D pH ISFET sensor solves this problem and meets all food-related legislative requirements.
Thanks to improved chemical resistance, the sensor can also withstand more CIP cycles than any other ISFET sensor. The sensor’s life can be extended by using an automatic cleaning and calibration system such as the Liquiline Control CDC90. Here, the pH sensor is cleaned with an acid cleaner during the CIP procedure in the rinsing chamber of the assembly.
The life sciences industry also has very strict requirements in terms of hygienic design, and Memosens CPS77D and CPS47D are perfectly equipped to meet those demands. The sensors deliver stable, accurate and reproducible results, even after sterilisation and autoclaving at temperatures up to 135°C, and come with all the usual hygiene approvals. In addition, the Memosens CPS77D offers maximum bacteria tightness thanks to its microporous ceramic diaphragm.
Chemical processes that take place at low temperatures and with a high concentration of organic solvents or solids pose particular challenges for pH measurement. Even at low temperatures, the Memosens CPS97D has a fast response time and is chemically stable due to its construction from PEEK thermoplastic. Its open aperture means it does not become clogged even when there is a high concentration of solids. The firm gel used in the reference is also extremely resistant to chemicals.
All the digital ISFET sensors use Memosens technology to store calibration, sensor and process data. Using Memobase Plus software, the sensors can be calibrated and regenerated under optimum conditions in a lab. This not only increases the operating life of the sensors, but also makes commissioning and maintenance considerably easier and reduces process downtime to a minimum. The stored data can also be used for predictive maintenance and process optimisation.