Infrared detectors for extreme environments

Paul Boughton

Infrared sensors from EGE are suited for material detection in applications where standard sensors fail due to excessive ambient temperatures.

Depending on the model, the units are designed to cover a maximum of 50 to 2,000°C. They react to the energy radiated by hot bodies. Featuring switching outputs, the ODMO series includes many models with various switching temperatures and angular fields.

A robust IP68/IP69K stainless steel housing protects the lens and the electronics, enabling the sensors to reliably detect hot workpieces at ambient temperatures of up to 75°C even in wet environments.

The ODML series is suitable for installation where the electronics must be protected from excessive heat. It consists of special fibre optic cables and easily exchangeable auxiliary IP67 lenses, enabling the physical separation of sensor and electronics. [Page Break]

OD 100 sensors ensure the contact-free detection of temperatures between 0 and 300°C. They are available with two independently adjustable switching outputs or with a 4–20mA analogue output.

Lastly, the ODE 350 infrared detector system for contact-free temperature measurement features four independent outputs: two analogue outputs (4–20 mA current output, 0–10V voltage output) and two outputs with a pre-selectable switching threshold, either as a changeover relay or as a semiconductor output. ODE 350 sensors are operated with a fibre optic cable that can withstand up to 350°C.
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Fig. 1  The OD 100.

Fig. 2. the ODMO.

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