Fail safe sensors.

Industrial processes place stringent demands on measurement technology. Extreme ambient conditions, aggressive media, chemically intensive cleaning and the need for accurate, fail-safe data are common. Conventional sensors soon reach their limits – due to condensation, corrosion, temperature extremes or labour-intensive maintenance. Developed specifically for these applications, the HTS401 from E+E Elektronik combines a robust protection concept with high measurement accuracy, easy system integration and a maintenance concept designed to minimise process interruptions.

To keep the sensor ready for operation even under severe stress, the HTS401 combines the proprietary E+E sensor coating with the Condensation Guard, a heated sensing unit that actively counteracts dew formation on the sensing element. As soon as the ambient conditions indicate a risk of condensation, the sensor temperature is raised slightly and automatically. This prevents moisture build-up on the sensor surface and keeps the output signal stable.

Complemented by the Automatic ReCovery function (ARC), the sensing element actively protects itself against harmful chemical influences. This reduces corrosion-related failures and measurement drift, extends service life and minimises maintenance interventions – especially in applications with high humidity and routine automated cleaning or sterilisation.

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