Terminal Head Form K type (Nicr-ni)

Terminal Head Form K type

Type K (Nicr-Ni) Head-Mounted Thermocouples

Head-mounted thermocouples (Nicr-Ni) with different cover types such as chain-screw cover or top-turn cover are equipped with nickel-chromium (NiCr) and nickel (Ni) temperature sensors.

The thermocouple head is an important part of a proper thermocouple system. The head is used to hold the K thermocouple terminal block and also connects the thermocouple element to the extension cable. The function of the head is twofold; it protects the connections from the elements and also provides a fixed temperature around the connections.

Thermocouple heads are available in various materials and NPT process thread sizes. Metal heads are made from various materials such as aluminum, cast iron, stainless steel, brass, and nickel-plated steel. The mounting data for each product is provided on their respective pages. Additionally, plastic heads are also available in our stocks.

Head-mounted thermocouple models have several advantages over bayonet type thermocouple models. Firstly, head-mounted thermocouple models are more durable and can withstand higher temperatures, making them suitable for use in more challenging industrial environments. Additionally, head-mounted thermocouple models are generally longer-lasting and easier to maintain, providing longer-lasting and more reliable measurement.

Head-mounted thermocouple models can also offer higher accuracy and precision, allowing for more precise and accurate measurements. However, bayonet type thermocouple models are generally cheaper and provide faster installation. Therefore, they can be preferred in low-budget applications. (what is termocouple?)

In conclusion, head-mounted thermocouple models offer higher durability, higher accuracy, and longer lifespan, while bayonet type thermocouple models are more cost-effective and provide faster installation. The choice of which type of thermocouple to use depends on the requirements of the application. (termocouple vs pt100)

NEMA standards for heads are listed to help you select the appropriate head for your application.

The most common NEMA ratings for heads are NEMA Type 2, 4, and 4X. NEMA is defined by the National Electrical Manufacturers Association. NEMA 250-1997 is detailed below.

NEMA 250 is a standard published by the National Electrical Manufacturers Association (NEMA). This standard defines ratings and classifications for industrial electrical equipment. NEMA 250 defines the NEMA Rating System used to determine how much protection equipment provides against various external environmental conditions. These ratings help select equipment based on the environmental conditions it will be used in and increase the durability and resilience of equipment. NEMA 250 also defines different classifications that determine the structural and performance characteristics of equipment.

NEMA 2: For indoor use to provide accidental personnel protection with enclosed equipment. Provide protection against falling dirt, dripping or light splashing water. (termocouple standards)

NEMA 4: For indoor or outdoor use to provide protection against falling dirt, rain, sleet, snow, windblown dust, splashing water, and hose-directed water. The formation of ice on the head will not cause damage.

NEMA 4X: For indoor or outdoor use to provide protection against falling dirt, rain, sleet, snow, windblown dust, splashing water, hose-directed water, and corrosion. The formation of ice on the head will not cause damage.