Temperature sensors are divided into two categories: thermocouple (TC) and resistance temperature detector (RTD).

Learn how to convert a 2-wire RTD temperature sensor to a 3-wire or 4-wire RTD temperature sensor. This procedure helps us to reduce the temperature measurement error of 2-wire RTD.

Resistance temperature detector (RTD) is a kind of temperature sensor, which uses the principle that the resistance of metal changes with temperature to measure temperature.

Acronym for resistance temperature detector or equipment. The working principle of the resistance temperature detector is that the resistance in the wire changes with the temperature.

Why is it recommended to use Pt100 Class A (according to IEC 60751) with a 4-wire connection?

When calibrating industrial platinum resistance thermometers (RTD temperature sensors), valve stem conduction is likely to be the main error source.

Here, we will see the detailed specifications of the thermowell.Each temperature element shall be equipped with a thermal sleeve, which shall be machined from a bar stock with a length of not more than 600 mm, and at least SS 316 material shall be used.

The International Society for Testing and Materials (ASTM) defines the term T thermowell as "a device designed to insert a closed end recessed tube into a temperature sensing element and provide a pressure seal connection to the vessel".

Instrumentation engineers seeking to measure temperature by installing temperature sensors and thermowells into flowing fluid streams must perform many critical evaluations.