High-Temperature LT3900 Online pH Sensor for Fermentation

Driven by its specialized high-temperature sensitive membrane (HT) and high-temperature SRG synthetic gel, the LT3900 online pH sensor is uniquely engineered for processes where extreme heat quickly destroys standard electrodes. By easily withstanding operating temperatures up to 130°C (and maximum tolerances up to 150°C) alongside rigorous 140°C autoclave sterilization, it offers unparalleled value across the following specialized B2B sectors:

Specialized Application Fields:
● Biopharmaceutical Fermentation: Standard sensors often fail or lose calibration after repeated sterilization. The LT3900 is fully compatible with strict CIP (Clean-in-Place) and SIP (Sterilization-in-Place) biotechnology requirements. It is proven to endure more than 30 continuous fermentation batches, ensuring uninterrupted sterile monitoring.
● Food & Beverage Production: Hygiene and continuous processing are critical in this sector. The electrode’s ability to withstand in-situ sterilization (SIP) guarantees safe, food-grade compliance while maintaining high-precision pH measurements in continuously hot process liquids.
● High-Temperature Sugar Refining: Boiling sugar syrups create highly viscous, hot, and polluted environments. The LT3900 combats this utilizing its robust double liquid junction structure, which provides exceptionally strong anti-pollution capabilities to prevent reference poisoning during hot syrup crystallization.
● Petrochemical & Chlor-Alkali Processes: These demanding chemical facilities require sensors that can handle harsh chemical aggression combined with extreme heat. Operating safely under pressures up to 6 Bar, this sensor delivers excellent long-term time and temperature drift performance, preventing costly downtime in volatile chemical processes.