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Plastic sensors open up totally new possibilities

JUMO plastoSENS – Measurement Technology Rethought

JUMO presents a completely new process for manufacturing temperature probes in the form of plastoSENS. In this process, the sensors are not potted in a metal pipe as was the case up to now. Instead, they are coated with plastic in an injection molding process. The patented system offers a range of benefits compared to the conventional temperature sensors.

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The biggest advantage of the plastic sensors is the complete design freedom. JUMO plastoSENS products can be adapted to the respective installation conditions. For example, the complete integration of a temperature sensor in a plastic pipe is possible. In addition to the reduced weight, a further benefit is the high reproducibility.

A probe with an insulation resistance of 5 kV for use in transformers, a vibration-resistant push-in probe for oil media, and a waterproof/steam-proof probe for sterilization applications are currently under development.

JUMO plastoSENS temperature sensors can be used for temperature ranges of -50 to +200 °C. The use of special plastics enables a thermal conductivity similar to that of metal. Use of special additives allows for the development of customized plastics for a variety of applications.

JUMO plastoSENS products are created in close collaboration with customers. The process starts with a feasibility test and a design proposal, followed by the design and simulation of the sensors and ultimately leads to the construction of the injection-molded tools. The tests start after a sampling phase and, at the end, we are left with a functional prototype and series production can begin. Thanks to modern software, it is possible to simulate the response behavior and thermal conductivity of the planned sensor at a very early stage in the development process.

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