Thermocouple thermometers have been around for quite a while. They come in all shapes and sizes and are used in just about every industry. Here at Rama Corporation, we believe in nothing but quality and top-of-the-line products. This is why we work with our clients to ensure we meet and exceed all their expectations regarding these thermometers and other heating elements.
What is a thermocouple?
A thermocouple thermometer is a temperature measuring device consisting of wires made of 2 different types of metals. The wires are joined at each end, with one junction as where the temperature is measured, and the other one kept at a constant lower temperature.
The wires then generate a voltage known as Seebeck Voltage (named after the German scientist who discovered the effect in 1821) when heated or cooled. Simple as it is, this phenomenon was a huge breakthrough for modern technology. It happens at just about any temperature, and thus, the thermocouple can be used in a wide range of temperatures.
Overall, thermocouple thermometers have many uses and can be found all around us. They are in everyday objects such as ovens, motor fans, and HVAC.
Thermocouples are also used in the space industry because they do not need electricity to work, which eliminates the need for batteries and allows the devices to remain practical in any environment.
The thermometers come in different ranges. Categories J, K, T, E, and N are considered the base metal thermocouples. On the other hand, refractory metal thermocouples are types C and D, while Noble Metals are types R, S, and B. The characteristics of the various types can be found in the two standards that define them, ANSI/ASTM E230 and IEC 60584
Different types of Thermocouple Designs
There are three basic designs; ungrounded, grounded, and exposed. The difference is in how the wires are physically attached.
If the wires are attached at the grounded tip, then that is a grounded probe. This design has a faster reaction than that of ungrounded thermocouples, where leads are connected to the inside of the probe and have some insulation. It is this insulation that leads to a slower reaction.
The exposed style has the quickest reaction since its leads are completely exposed to the environment. This allows no interference or insulating properties to get in the way.
On the flip side, the exposed lead design wears out much more quickly as the leads are exposed to everything.
Different Sensor Types
Thermocouple thermometers also come with different sensor types. These include the probe style, beaded weld, surface probe, and wireless.
Rama Corporation offers all of these styles for our customers’ convenience. On top of that, we work with our clients to figure out the intended application and help guide them into the correct sensor type and design.
Sometimes though, our clients know what they want but cannot find it. In that case, you can call our sales team, and we will be happy to offer you a quote on a custom thermocouple. We have helped thousands of clients this way and are sure that we can help you as well.
Rama Corporation easy also offers a wide variety of other heating elements. These include but are not limited to Band and Strip Heaters, Cartridge Heaters, Coiled Nozzle Heaters, Flexible Heaters, Immersion Heaters, Multicell Heaters, PVC Heaters, Thermocouples, Tubular Heaters, and Specialty Heaters. Whatever it is you want, you should find it in our catalog. But if you can’t, don’t hesitate to consult us; we are more than happy to work with you to develop a custom heating solution for your needs.