Some Common RTD Probe Types

By Gwen Lowe


Resistance temperature detectors are essential for various applications especially in industries and laboratories where accurate temperature measurements are required. This apparatus has a glass or ceramic core and a resistor, which changes its resistance value as temperature changes. The materials used to make this device are very delicate hence need to be secured under a RTD probe. There are various types of probes available that are used for various types of resistance temperature detectors.

One of the main types of probes is the spring-loaded that is lagged to guarantee high levels of protection to the apparatus. The device is also lagged with an alumina powder that allows for proper heat transfer and reduction of vibration. The good thing with these apparatus is that people can change it whenever they want and attach it easily to the wiring junction box.

The attached-in plug probe is also common. The use of the plug is to ease wiring connections while the alumina powder insulation is used to secure the device from the impacts of various harsh environmental conditions. The alumina powder insulation is also essential for enhancing transfer of heat and reduction of vibration.

The built-in head connection probes come with cast aluminum screw cover head, insulated alumina powder and a well-sealed sheath. Some also have a ceramic terminal base, which are attached to stainless steel screws and brass terminals. The alumina lagging is designed to provide suitable protection to the device.

Other popular devices are the wall-mount room temperature types. The main types of these devices come with internal terminal strips, metal wall mounted sub-plates and plastic ventilated covers. Most of them have high standards of versatility and people can easily mount them in the vertical and horizontal position. In order to improve their performance, the plastic ventilated coat in most of the devices is covered with a sheathed coat.

Bolt-on-ring probes are other popular options. Numerous types of these types have their rings obtained from brass materials. Some would also have metallic over-braids and sheathing. The size of the screw or bolt to be used on these apparatus would depend on the diameter and size of the ring.

The adjustable spring immersions probes are also common. Most of the devices that are designed in this make come with a lead wire transition and adjustable spring to guarantee the provision of the variable immersion and metallic sheathing. Some have a pierced cap, which ensures people can easily and quickly connect it to their adapters.

There are various factors, which people should consider when purchasing certain items. One of the main factors is the type of the product to be purchased since not all products are the same. Therefore when purchasing probes, you should also make sure you determine which type to choose as there are various types available that can be used for different applications. To choose the best option, people are supposed to familiarize with the common types available and their advantages and drawbacks as this would be the best way to help them make a wise decision.




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