Hygienic Thermometers

Hygienic Thermometers

Hygienic thermometers are temperature instruments designed to meet sanitary and aseptic requirements while maintaining high measurement performance. They are built to align with strict regulatory and hygienic expectations typical of food, beverage, and pharmaceutical operations, and are offered in compact and modular formats to suit different installation philosophies. The portfolio emphasis includes industry-standard hygienic process connections, capable sensors, and transmitter options supported by relevant certifications and approvals.

The benefit of hygienic design is not limited to cleanability; it also supports reliable, repeatable temperature measurement in processes where quality attributes and compliance depend on controlled thermal conditions. Properly executed hygienic assemblies reduce crevice and contamination risk while enabling stable immersion geometry and robust sealing under thermal cycling. High-performance sensing elements and modern transmitter features help maintain measurement integrity through washdown, SIP/CIP routines, and frequent process transitions.

Mechanical flexibility is achieved through a wide set of hygienic process connections such as clamp systems, metallic sealing arrangements, weld-in adapters, Varivent-style interfaces, and compression fittings. Assemblies may be configured with thermowells for safe, convenient insert exchange and recalibration, or without thermowells for direct medium contact when maximum response and accuracy are required. Options extend to transmitter/no-transmitter and display/no-display combinations, and hygienic thermowell geometries (including tee and elbow variants) for tight piping layouts.

Modular hygienic instruments (e.g., iTHERM ModuLine) broaden the range of achievable configurations while controlling portfolio complexity. Added-value technologies highlighted in the offering include iTHERM QuickSens for very fast response (t90 on the order of seconds) and iTHERM QuickNeck to enable quick-release, tool-free removal of measuring inserts for recalibration. Communication protocols can be selected to align with integration strategy, including 4–20 mA, HART®, and IO-Link.

Typical applications include hygienic and aseptic process lines, pasteurization and sterilization steps, fermentation and bioprocess temperature control, and utilities supporting hygienic production. Selection is driven by hygienic connection standards, required response time, calibration strategy, and the desired balance between direct immersion performance and thermowell-enabled serviceability.

Forberg Smith, an exclusive authorized representative of sales and service for Endress+Hauser.