Electrical Resistance Temperature Transmitter

Electrical Resistance Temperature Transmitters, also known as RTD transmitters, are devices used to measure temperature using the principle of electrical resistance. They are part of the supply class Pressure, Temperature, and Humidity Measuring and Controlling Instruments in the supply group Instruments and Laboratory Equipment.

RTD transmitters consist of a temperature sensor called a Resistance Temperature Detector (RTD) and a transmitter. The RTD is typically made of a pure metal or a metal alloy with a known temperature-resistance relationship. As the temperature changes, the resistance of the RTD also changes. The transmitter converts this resistance change into a corresponding electrical signal, usually a 4-20 mA current signal, which can be easily measured and interpreted by other instruments or control systems.

These transmitters are commonly used in various industrial applications where accurate temperature measurement and control are required. They are known for their high accuracy, stability, and reliability. RTD transmitters are often used in process industries such as oil and gas, chemical, pharmaceutical, and food and beverage, as well as in HVAC systems and laboratory equipment.

In summary, Electrical Resistance Temperature Transmitters are devices used to measure temperature using the principle of electrical resistance. They are part of the supply class Pressure, Temperature, and Humidity Measuring and Controlling Instruments in the supply group Instruments and Laboratory Equipment.