Temperature Measurement
Temperature measurement is the most frequent type of instrumentation found in industrial process applications. For many processes temperature measurement and control is vital in determining the quality and profitability of the process.

There are different types of temperature sensors including Pyrometer, Thermocouples, Thermistors, Resistance temperature detector and infrared.

LTH Electronics offer a range of fast responding PT100 Resistance Temperature Detectors or RTD sensors for temperature measurement in industrial process applications.

A resistance temperature detector or RTD sensor is used to measure temperature by correlating the resistance of the RTD element with temperature. RTD elements consist of a length of fine coiled wire wrapped around a ceramic or glass core. As the PT100 RTD element can be quite fragile, it is often placed inside a sheathed probe for protection. The RTD element is made from a pure material whose resistance at various temperatures has been documented. The material has a predictable change in resistance as the temperature changes; it is this predictable change that is used to determine temperature. A PT100 RTD sensor has a resistance of 100 Ohms at 0°C.

LTH offer a complete range of PT-100 temperature sensors in 3-wire format with various insertion lengths and diameters. Standard accuracy is 1/3 DIN. Many different process connections are available, threaded, flanged or sanitary, for example DIN milk-coupling and Tri-clamp. The connection heads are available in form B (aluminium), BBK (polyamide) or all Stainless Steel format with a bayonet- or screw cover. Various head mounted transmitters can be supplied in the connection heads, with a 4-20mA current output or HART Protocol.

We offer a range of thermowells for use with the PT100 sensors, threaded, weld in or flanged (DIN or ANSI) in 316 Stainless steel.

Call us on +44 (0)1582 593693 or email sales@lth.co.uk to find out how we can help you.