Temperature sensor Vulcanic

A temperature sensor is generally a small diameter cylinder (between 0.5 and 8 mm), varying in length (between 50 mm and several meters), rigid or deformable and immersed in the media to be measured : solid, liquid or gas. The choice depends on the following criteria: temperature range, precision, response time, media to be measured, overall dimensions, pressure, corrosion, attachment and connection.
The PTC technology (PT 100) is totally suited to industrial applications between -50°C and 500°C, in the absence of excessive vibration.
The thermocouple technology allows very short response times and high temperatures but with a lower precision (+/- 2°C on average).
The electrical connection of the sensors is made either using flexible cables or connectors, or on a terminal block inside a small standardised metal case referred to as the "probe head". When the cable is particularly long, it is advisable to use a 4/20 mA measurement converter installed in the probe head.
Some connection devices are ATEX certified in the "d", "e" or "ia" protection modes in a G (gas) or D (dusty) environment.

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