Pyromation

Thermocouples – Thermo couples are the most common, convenient, and versatile devices used to measure temperature. They convert units of heat into useable engineering units that serve as input signals for process controllers and recorders. A thermocouple consists of a welded hot junction between two dissimilar metals – usually wires – and a reference junction at the opposite ends of the parent materials. Heating the hot junction in the working environment produces a temperature gradient which generates an Electromotive Force (EMF). The EMF appears across the free ends of the thermocouple wires where it is measured and converted into units of heat calibration. Through selection of appropriate thermocouple wires and sheath components, thermocouples are suitable to be used in temperature ranges.

Resistance Temperature Detectors (RTD) – Are temperature sensors that exploit the predictable change in electrical resistance of some materials with changing temperature. As they are almost invariably made of platinum, they are slowly replacing the use of thermocouples in many industrial applications under 600C. There are two broad categories of RTD’s called film or wire wound. The major advantages are high accuracy, low drift, wide operating range and suitable for precision applications. RTD assemblies are offered with a choice of element materials, values and accuracies, sheath options plus complete RTD assemblies including integral mounted transmitters.

Noshok

BiMetal Thermometers – RTD transmitters, industrial type bi-metal thermometers, remote options and thermowells.